Commit | Line | Data |
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252b5132 | 1 | /* tc-m68k.c -- Assemble for the m68k family |
f7e42eb4 | 2 | Copyright 1987, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
6358301e | 3 | 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc. |
252b5132 RH |
4 | |
5 | This file is part of GAS, the GNU Assembler. | |
6 | ||
7 | GAS is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GAS is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GAS; see the file COPYING. If not, write to the Free | |
19 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
20 | 02111-1307, USA. */ | |
21 | ||
252b5132 | 22 | #include "as.h" |
3882b010 | 23 | #include "safe-ctype.h" |
252b5132 RH |
24 | #include "obstack.h" |
25 | #include "subsegs.h" | |
f27a3839 | 26 | #include "dwarf2dbg.h" |
c04898f8 | 27 | #include "dw2gencfi.h" |
252b5132 RH |
28 | |
29 | #include "opcode/m68k.h" | |
30 | #include "m68k-parse.h" | |
31 | ||
0d96863f CM |
32 | #if defined (OBJ_ELF) |
33 | #include "elf/m68k.h" | |
34 | #endif | |
35 | ||
252b5132 RH |
36 | /* This string holds the chars that always start a comment. If the |
37 | pre-processor is disabled, these aren't very useful. The macro | |
38 | tc_comment_chars points to this. We use this, rather than the | |
39 | usual comment_chars, so that the --bitwise-or option will work. */ | |
40 | #if defined (TE_SVR4) || defined (TE_DELTA) | |
41 | const char *m68k_comment_chars = "|#"; | |
42 | #else | |
43 | const char *m68k_comment_chars = "|"; | |
44 | #endif | |
45 | ||
46 | /* This array holds the chars that only start a comment at the beginning of | |
47 | a line. If the line seems to have the form '# 123 filename' | |
48 | .line and .file directives will appear in the pre-processed output */ | |
49 | /* Note that input_file.c hand checks for '#' at the beginning of the | |
50 | first line of the input file. This is because the compiler outputs | |
92774660 KH |
51 | #NO_APP at the beginning of its output. */ |
52 | /* Also note that comments like this one will always work. */ | |
252b5132 RH |
53 | const char line_comment_chars[] = "#*"; |
54 | ||
63a0b638 | 55 | const char line_separator_chars[] = ";"; |
252b5132 | 56 | |
36759679 | 57 | /* Chars that can be used to separate mant from exp in floating point nums. */ |
5a38dc70 | 58 | const char EXP_CHARS[] = "eE"; |
252b5132 RH |
59 | |
60 | /* Chars that mean this number is a floating point constant, as | |
61 | in "0f12.456" or "0d1.2345e12". */ | |
62 | ||
5a38dc70 | 63 | const char FLT_CHARS[] = "rRsSfFdDxXeEpP"; |
252b5132 RH |
64 | |
65 | /* Also be aware that MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT may have to be | |
66 | changed in read.c . Ideally it shouldn't have to know about it at all, | |
67 | but nothing is ideal around here. */ | |
68 | ||
36759679 | 69 | const int md_reloc_size = 8; /* Size of relocation record. */ |
252b5132 RH |
70 | |
71 | /* Are we trying to generate PIC code? If so, absolute references | |
72 | ought to be made into linkage table references or pc-relative | |
92774660 | 73 | references. Not implemented. For ELF there are other means |
252b5132 RH |
74 | to denote pic relocations. */ |
75 | int flag_want_pic; | |
76 | ||
36759679 NC |
77 | static int flag_short_refs; /* -l option. */ |
78 | static int flag_long_jumps; /* -S option. */ | |
28e7409f | 79 | static int flag_keep_pcrel; /* --pcrel option. */ |
252b5132 RH |
80 | |
81 | #ifdef REGISTER_PREFIX_OPTIONAL | |
82 | int flag_reg_prefix_optional = REGISTER_PREFIX_OPTIONAL; | |
83 | #else | |
84 | int flag_reg_prefix_optional; | |
85 | #endif | |
86 | ||
87 | /* Whether --register-prefix-optional was used on the command line. */ | |
88 | static int reg_prefix_optional_seen; | |
89 | ||
90 | /* The floating point coprocessor to use by default. */ | |
91 | static enum m68k_register m68k_float_copnum = COP1; | |
92 | ||
93 | /* If this is non-zero, then references to number(%pc) will be taken | |
94 | to refer to number, rather than to %pc + number. */ | |
95 | static int m68k_abspcadd; | |
96 | ||
97 | /* If this is non-zero, then the quick forms of the move, add, and sub | |
98 | instructions are used when possible. */ | |
99 | static int m68k_quick = 1; | |
100 | ||
101 | /* If this is non-zero, then if the size is not specified for a base | |
102 | or outer displacement, the assembler assumes that the size should | |
103 | be 32 bits. */ | |
104 | static int m68k_rel32 = 1; | |
105 | ||
106 | /* This is non-zero if m68k_rel32 was set from the command line. */ | |
107 | static int m68k_rel32_from_cmdline; | |
108 | ||
109 | /* The default width to use for an index register when using a base | |
110 | displacement. */ | |
111 | static enum m68k_size m68k_index_width_default = SIZE_LONG; | |
112 | ||
113 | /* We want to warn if any text labels are misaligned. In order to get | |
114 | the right line number, we need to record the line number for each | |
115 | label. */ | |
252b5132 RH |
116 | struct label_line |
117 | { | |
118 | struct label_line *next; | |
119 | symbolS *label; | |
120 | char *file; | |
121 | unsigned int line; | |
122 | int text; | |
123 | }; | |
124 | ||
125 | /* The list of labels. */ | |
126 | ||
127 | static struct label_line *labels; | |
128 | ||
129 | /* The current label. */ | |
130 | ||
131 | static struct label_line *current_label; | |
132 | ||
60fed2d3 NC |
133 | /* Pointer to list holding the opcodes sorted by name. */ |
134 | static struct m68k_opcode const ** m68k_sorted_opcodes; | |
135 | ||
36759679 NC |
136 | /* Its an arbitrary name: This means I don't approve of it. |
137 | See flames below. */ | |
252b5132 RH |
138 | static struct obstack robyn; |
139 | ||
252b5132 RH |
140 | struct m68k_incant |
141 | { | |
142 | const char *m_operands; | |
143 | unsigned long m_opcode; | |
144 | short m_opnum; | |
145 | short m_codenum; | |
146 | int m_arch; | |
147 | struct m68k_incant *m_next; | |
148 | }; | |
149 | ||
150 | #define getone(x) ((((x)->m_opcode)>>16)&0xffff) | |
151 | #define gettwo(x) (((x)->m_opcode)&0xffff) | |
152 | ||
153 | static const enum m68k_register m68000_control_regs[] = { 0 }; | |
154 | static const enum m68k_register m68010_control_regs[] = { | |
155 | SFC, DFC, USP, VBR, | |
156 | 0 | |
157 | }; | |
158 | static const enum m68k_register m68020_control_regs[] = { | |
159 | SFC, DFC, USP, VBR, CACR, CAAR, MSP, ISP, | |
160 | 0 | |
161 | }; | |
162 | static const enum m68k_register m68040_control_regs[] = { | |
163 | SFC, DFC, CACR, TC, ITT0, ITT1, DTT0, DTT1, | |
164 | USP, VBR, MSP, ISP, MMUSR, URP, SRP, | |
165 | 0 | |
166 | }; | |
167 | static const enum m68k_register m68060_control_regs[] = { | |
168 | SFC, DFC, CACR, TC, ITT0, ITT1, DTT0, DTT1, BUSCR, | |
169 | USP, VBR, URP, SRP, PCR, | |
170 | 0 | |
171 | }; | |
6da466c7 | 172 | static const enum m68k_register mcf_control_regs[] = { |
3e602632 | 173 | CACR, TC, ACR0, ACR1, ACR2, ACR3, VBR, ROMBAR, |
252b5132 RH |
174 | RAMBAR0, RAMBAR1, MBAR, |
175 | 0 | |
176 | }; | |
3e602632 NC |
177 | static const enum m68k_register mcf528x_control_regs[] = { |
178 | CACR, ACR0, ACR1, VBR, FLASHBAR, RAMBAR, | |
179 | 0 | |
180 | }; | |
181 | static const enum m68k_register mcfv4e_control_regs[] = { | |
182 | CACR, TC, ITT0, ITT1, DTT0, DTT1, BUSCR, VBR, PC, ROMBAR, | |
183 | ROMBAR1, RAMBAR0, RAMBAR1, MPCR, EDRAMBAR, SECMBAR, MBAR, MBAR0, MBAR1, | |
184 | PCR1U0, PCR1L0, PCR1U1, PCR1L1, PCR2U0, PCR2L0, PCR2U1, PCR2L1, | |
185 | PCR3U0, PCR3L0, PCR3U1, PCR3L1, | |
186 | 0 | |
187 | }; | |
252b5132 RH |
188 | #define cpu32_control_regs m68010_control_regs |
189 | ||
190 | static const enum m68k_register *control_regs; | |
191 | ||
36759679 | 192 | /* Internal form of a 68020 instruction. */ |
252b5132 RH |
193 | struct m68k_it |
194 | { | |
195 | const char *error; | |
36759679 | 196 | const char *args; /* List of opcode info. */ |
252b5132 RH |
197 | int numargs; |
198 | ||
36759679 | 199 | int numo; /* Number of shorts in opcode. */ |
252b5132 RH |
200 | short opcode[11]; |
201 | ||
202 | struct m68k_op operands[6]; | |
203 | ||
36759679 | 204 | int nexp; /* Number of exprs in use. */ |
252b5132 RH |
205 | struct m68k_exp exprs[4]; |
206 | ||
36759679 | 207 | int nfrag; /* Number of frags we have to produce. */ |
252b5132 RH |
208 | struct |
209 | { | |
36759679 | 210 | int fragoff; /* Where in the current opcode the frag ends. */ |
252b5132 RH |
211 | symbolS *fadd; |
212 | offsetT foff; | |
213 | int fragty; | |
214 | } | |
215 | fragb[4]; | |
216 | ||
36759679 | 217 | int nrel; /* Num of reloc strucs in use. */ |
252b5132 RH |
218 | struct |
219 | { | |
220 | int n; | |
221 | expressionS exp; | |
222 | char wid; | |
223 | char pcrel; | |
224 | /* In a pc relative address the difference between the address | |
225 | of the offset and the address that the offset is relative | |
226 | to. This depends on the addressing mode. Basically this | |
227 | is the value to put in the offset field to address the | |
228 | first byte of the offset, without regarding the special | |
229 | significance of some values (in the branch instruction, for | |
230 | example). */ | |
231 | int pcrel_fix; | |
232 | #ifdef OBJ_ELF | |
233 | /* Whether this expression needs special pic relocation, and if | |
234 | so, which. */ | |
235 | enum pic_relocation pic_reloc; | |
236 | #endif | |
237 | } | |
36759679 | 238 | reloc[5]; /* Five is enough??? */ |
252b5132 RH |
239 | }; |
240 | ||
6b6e92f4 | 241 | #define cpu_of_arch(x) ((x) & (m68000up | mcfisa_a)) |
252b5132 RH |
242 | #define float_of_arch(x) ((x) & mfloat) |
243 | #define mmu_of_arch(x) ((x) & mmmu) | |
6b6e92f4 NC |
244 | #define arch_coldfire_p(x) ((x) & mcfisa_a) |
245 | #define arch_coldfire_fpu(x) ((x) & cfloat) | |
252b5132 | 246 | |
36759679 | 247 | /* Macros for determining if cpu supports a specific addressing mode. */ |
6b6e92f4 | 248 | #define HAVE_LONG_BRANCH(x) ((x) & (m68020|m68030|m68040|m68060|cpu32|mcfisa_b)) |
252b5132 | 249 | |
36759679 | 250 | static struct m68k_it the_ins; /* The instruction being assembled. */ |
252b5132 RH |
251 | |
252 | #define op(ex) ((ex)->exp.X_op) | |
253 | #define adds(ex) ((ex)->exp.X_add_symbol) | |
254 | #define subs(ex) ((ex)->exp.X_op_symbol) | |
255 | #define offs(ex) ((ex)->exp.X_add_number) | |
256 | ||
36759679 | 257 | /* Macros for adding things to the m68k_it struct. */ |
252b5132 RH |
258 | #define addword(w) the_ins.opcode[the_ins.numo++]=(w) |
259 | ||
260 | /* Static functions. */ | |
252b5132 RH |
261 | static void insop PARAMS ((int, const struct m68k_incant *)); |
262 | static void add_fix PARAMS ((int, struct m68k_exp *, int, int)); | |
263 | static void add_frag PARAMS ((symbolS *, offsetT, int)); | |
264 | ||
36759679 NC |
265 | /* Like addword, but goes BEFORE general operands. */ |
266 | ||
252b5132 RH |
267 | static void |
268 | insop (w, opcode) | |
269 | int w; | |
270 | const struct m68k_incant *opcode; | |
271 | { | |
272 | int z; | |
07726851 | 273 | for (z = the_ins.numo; z > opcode->m_codenum; --z) |
8a104df9 KH |
274 | the_ins.opcode[z] = the_ins.opcode[z - 1]; |
275 | for (z = 0; z < the_ins.nrel; z++) | |
276 | the_ins.reloc[z].n += 2; | |
252b5132 RH |
277 | for (z = 0; z < the_ins.nfrag; z++) |
278 | the_ins.fragb[z].fragoff++; | |
8a104df9 | 279 | the_ins.opcode[opcode->m_codenum] = w; |
252b5132 RH |
280 | the_ins.numo++; |
281 | } | |
282 | ||
283 | /* The numo+1 kludge is so we can hit the low order byte of the prev word. | |
284 | Blecch. */ | |
285 | static void | |
286 | add_fix (width, exp, pc_rel, pc_fix) | |
287 | int width; | |
288 | struct m68k_exp *exp; | |
289 | int pc_rel; | |
290 | int pc_fix; | |
291 | { | |
292 | the_ins.reloc[the_ins.nrel].n = ((width == 'B' || width == '3') | |
293 | ? (the_ins.numo*2-1) | |
294 | : (((width)=='b') | |
295 | ? (the_ins.numo*2+1) | |
296 | : (the_ins.numo*2))); | |
297 | the_ins.reloc[the_ins.nrel].exp = exp->exp; | |
298 | the_ins.reloc[the_ins.nrel].wid = width; | |
299 | the_ins.reloc[the_ins.nrel].pcrel_fix = pc_fix; | |
300 | #ifdef OBJ_ELF | |
301 | the_ins.reloc[the_ins.nrel].pic_reloc = exp->pic_reloc; | |
302 | #endif | |
303 | the_ins.reloc[the_ins.nrel++].pcrel = pc_rel; | |
304 | } | |
305 | ||
306 | /* Cause an extra frag to be generated here, inserting up to 10 bytes | |
307 | (that value is chosen in the frag_var call in md_assemble). TYPE | |
308 | is the subtype of the frag to be generated; its primary type is | |
309 | rs_machine_dependent. | |
310 | ||
311 | The TYPE parameter is also used by md_convert_frag_1 and | |
312 | md_estimate_size_before_relax. The appropriate type of fixup will | |
313 | be emitted by md_convert_frag_1. | |
314 | ||
315 | ADD becomes the FR_SYMBOL field of the frag, and OFF the FR_OFFSET. */ | |
316 | static void | |
317 | add_frag (add, off, type) | |
318 | symbolS *add; | |
319 | offsetT off; | |
320 | int type; | |
321 | { | |
8a104df9 KH |
322 | the_ins.fragb[the_ins.nfrag].fragoff = the_ins.numo; |
323 | the_ins.fragb[the_ins.nfrag].fadd = add; | |
324 | the_ins.fragb[the_ins.nfrag].foff = off; | |
325 | the_ins.fragb[the_ins.nfrag++].fragty = type; | |
252b5132 RH |
326 | } |
327 | ||
328 | #define isvar(ex) \ | |
329 | (op (ex) != O_constant && op (ex) != O_big) | |
330 | ||
331 | static char *crack_operand PARAMS ((char *str, struct m68k_op *opP)); | |
332 | static int get_num PARAMS ((struct m68k_exp *exp, int ok)); | |
333 | static void m68k_ip PARAMS ((char *)); | |
334 | static void insert_reg PARAMS ((const char *, int)); | |
335 | static void select_control_regs PARAMS ((void)); | |
336 | static void init_regtable PARAMS ((void)); | |
337 | static int reverse_16_bits PARAMS ((int in)); | |
338 | static int reverse_8_bits PARAMS ((int in)); | |
339 | static void install_gen_operand PARAMS ((int mode, int val)); | |
340 | static void install_operand PARAMS ((int mode, int val)); | |
341 | static void s_bss PARAMS ((int)); | |
342 | static void s_data1 PARAMS ((int)); | |
343 | static void s_data2 PARAMS ((int)); | |
344 | static void s_even PARAMS ((int)); | |
345 | static void s_proc PARAMS ((int)); | |
346 | static void mri_chip PARAMS ((void)); | |
347 | static void s_chip PARAMS ((int)); | |
348 | static void s_fopt PARAMS ((int)); | |
349 | static void s_opt PARAMS ((int)); | |
350 | static void s_reg PARAMS ((int)); | |
351 | static void s_restore PARAMS ((int)); | |
352 | static void s_save PARAMS ((int)); | |
353 | static void s_mri_if PARAMS ((int)); | |
354 | static void s_mri_else PARAMS ((int)); | |
355 | static void s_mri_endi PARAMS ((int)); | |
356 | static void s_mri_break PARAMS ((int)); | |
357 | static void s_mri_next PARAMS ((int)); | |
358 | static void s_mri_for PARAMS ((int)); | |
359 | static void s_mri_endf PARAMS ((int)); | |
360 | static void s_mri_repeat PARAMS ((int)); | |
361 | static void s_mri_until PARAMS ((int)); | |
362 | static void s_mri_while PARAMS ((int)); | |
363 | static void s_mri_endw PARAMS ((int)); | |
252b5132 RH |
364 | static void md_convert_frag_1 PARAMS ((fragS *)); |
365 | ||
366 | static int current_architecture; | |
6b6e92f4 | 367 | static int current_chip; |
252b5132 | 368 | |
dc84e067 NC |
369 | struct m68k_cpu |
370 | { | |
371 | unsigned long arch; | |
6b6e92f4 | 372 | unsigned long chip; |
dc84e067 NC |
373 | const char *name; |
374 | int alias; | |
375 | }; | |
252b5132 | 376 | |
dc84e067 NC |
377 | static const struct m68k_cpu archs[] = |
378 | { | |
6b6e92f4 NC |
379 | { m68000, m68000, "68000", 0 }, |
380 | { m68010, m68010, "68010", 0 }, | |
381 | { m68020, m68020, "68020", 0 }, | |
382 | { m68030, m68030, "68030", 0 }, | |
383 | { m68040, m68040, "68040", 0 }, | |
384 | { m68060, m68060, "68060", 0 }, | |
385 | { cpu32, cpu32, "cpu32", 0 }, | |
386 | { m68881, m68881, "68881", 0 }, | |
387 | { m68851, m68851, "68851", 0 }, | |
388 | { mcfisa_a, mcf5200, "5200", 0 }, | |
389 | { mcfisa_a|mcfhwdiv|mcfmac, mcf5206e, "5206e", 0 }, | |
390 | { mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf521x, "521x", 0 }, | |
391 | { mcfisa_a|mcfhwdiv|mcfemac, mcf5249, "5249", 0 }, | |
392 | { mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf528x, "528x", 0 }, | |
393 | { mcfisa_a|mcfhwdiv|mcfmac, mcf5307, "5307", 0 }, | |
394 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfmac, mcf5407, "5407", 0 }, | |
395 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfemac|mcfusp|cfloat, mcf5470, "547x", 0 }, | |
396 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfemac|mcfusp|cfloat, mcf5480, "548x", 0 }, | |
dc84e067 NC |
397 | /* Aliases (effectively, so far as gas is concerned) for the above |
398 | cpus. */ | |
6b6e92f4 NC |
399 | { m68020, m68020, "68k", 1 }, |
400 | { m68000, m68000, "68008", 1 }, | |
401 | { m68000, m68000, "68302", 1 }, | |
402 | { m68000, m68000, "68306", 1 }, | |
403 | { m68000, m68000, "68307", 1 }, | |
404 | { m68000, m68000, "68322", 1 }, | |
405 | { m68000, m68000, "68356", 1 }, | |
406 | { m68000, m68000, "68ec000", 1 }, | |
407 | { m68000, m68000, "68hc000", 1 }, | |
408 | { m68000, m68000, "68hc001", 1 }, | |
409 | { m68020, m68020, "68ec020", 1 }, | |
410 | { m68030, m68030, "68ec030", 1 }, | |
411 | { m68040, m68040, "68ec040", 1 }, | |
412 | { m68060, m68060, "68ec060", 1 }, | |
413 | { cpu32, cpu32, "68330", 1 }, | |
414 | { cpu32, cpu32, "68331", 1 }, | |
415 | { cpu32, cpu32, "68332", 1 }, | |
416 | { cpu32, cpu32, "68333", 1 }, | |
417 | { cpu32, cpu32, "68334", 1 }, | |
418 | { cpu32, cpu32, "68336", 1 }, | |
419 | { cpu32, cpu32, "68340", 1 }, | |
420 | { cpu32, cpu32, "68341", 1 }, | |
421 | { cpu32, cpu32, "68349", 1 }, | |
422 | { cpu32, cpu32, "68360", 1 }, | |
423 | { m68881, m68881, "68882", 1 }, | |
424 | { mcfisa_a, mcf5200, "5202", 1 }, | |
425 | { mcfisa_a, mcf5200, "5204", 1 }, | |
426 | { mcfisa_a, mcf5200, "5206", 1 }, | |
427 | { mcfisa_a|mcfhwdiv|mcfisa_aa|mcfemac, mcf521x, "5214", 1 }, | |
428 | { mcfisa_a|mcfhwdiv|mcfisa_aa|mcfemac, mcf521x, "5216", 1 }, | |
429 | { mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac, mcf528x, "5280", 1 }, | |
430 | { mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac, mcf528x, "5281", 1 }, | |
431 | { mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac, mcf528x, "5282", 1 }, | |
432 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfmac, mcf5407, "cfv4", 1 }, | |
433 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfemac|mcfusp|cfloat, mcf5470, "5470", 1 }, | |
434 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfemac|mcfusp|cfloat, mcf5470, "5471", 1 }, | |
435 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfemac|mcfusp|cfloat, mcf5470, "5472", 1 }, | |
436 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfemac|mcfusp|cfloat, mcf5470, "5473", 1 }, | |
437 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfemac|mcfusp|cfloat, mcf5470, "5474", 1 }, | |
438 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfemac|mcfusp|cfloat, mcf5470, "5475", 1 }, | |
439 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfemac|mcfusp|cfloat, mcf5470, "5480", 1 }, | |
440 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfemac|mcfusp|cfloat, mcf5470, "5481", 1 }, | |
441 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfemac|mcfusp|cfloat, mcf5470, "5482", 1 }, | |
442 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfemac|mcfusp|cfloat, mcf5470, "5483", 1 }, | |
443 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfemac|mcfusp|cfloat, mcf5470, "5484", 1 }, | |
444 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfemac|mcfusp|cfloat, mcf5470, "5485", 1 }, | |
445 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfemac|mcfusp|cfloat, mcf5470, "cfv4e", 1 }, | |
dc84e067 | 446 | }; |
252b5132 RH |
447 | |
448 | static const int n_archs = sizeof (archs) / sizeof (archs[0]); | |
449 | ||
151337e8 NC |
450 | /* This is the assembler relaxation table for m68k. m68k is a rich CISC |
451 | architecture and we have a lot of relaxation modes. */ | |
252b5132 | 452 | |
151337e8 NC |
453 | /* Macros used in the relaxation code. */ |
454 | #define TAB(x,y) (((x) << 2) + (y)) | |
455 | #define TABTYPE(x) ((x) >> 2) | |
456 | ||
457 | /* Relaxation states. */ | |
458 | #define BYTE 0 | |
459 | #define SHORT 1 | |
460 | #define LONG 2 | |
461 | #define SZ_UNDEF 3 | |
462 | ||
463 | /* Here are all the relaxation modes we support. First we can relax ordinary | |
464 | branches. On 68020 and higher and on CPU32 all branch instructions take | |
465 | three forms, so on these CPUs all branches always remain as such. When we | |
466 | have to expand to the LONG form on a 68000, though, we substitute an | |
467 | absolute jump instead. This is a direct replacement for unconditional | |
468 | branches and a branch over a jump for conditional branches. However, if the | |
469 | user requires PIC and disables this with --pcrel, we can only relax between | |
470 | BYTE and SHORT forms, punting if that isn't enough. This gives us four | |
471 | different relaxation modes for branches: */ | |
472 | ||
36759679 NC |
473 | #define BRANCHBWL 0 /* Branch byte, word, or long. */ |
474 | #define BRABSJUNC 1 /* Absolute jump for LONG, unconditional. */ | |
475 | #define BRABSJCOND 2 /* Absolute jump for LONG, conditional. */ | |
476 | #define BRANCHBW 3 /* Branch byte or word. */ | |
151337e8 NC |
477 | |
478 | /* We also relax coprocessor branches and DBcc's. All CPUs that support | |
479 | coprocessor branches support them in word and long forms, so we have only | |
480 | one relaxation mode for them. DBcc's are word only on all CPUs. We can | |
481 | relax them to the LONG form with a branch-around sequence. This sequence | |
482 | can use a long branch (if available) or an absolute jump (if acceptable). | |
483 | This gives us two relaxation modes. If long branches are not available and | |
484 | absolute jumps are not acceptable, we don't relax DBcc's. */ | |
485 | ||
36759679 NC |
486 | #define FBRANCH 4 /* Coprocessor branch. */ |
487 | #define DBCCLBR 5 /* DBcc relaxable with a long branch. */ | |
488 | #define DBCCABSJ 6 /* DBcc relaxable with an absolute jump. */ | |
151337e8 NC |
489 | |
490 | /* That's all for instruction relaxation. However, we also relax PC-relative | |
491 | operands. Specifically, we have three operand relaxation modes. On the | |
492 | 68000 PC-relative operands can only be 16-bit, but on 68020 and higher and | |
493 | on CPU32 they may be 16-bit or 32-bit. For the latter we relax between the | |
494 | two. Also PC+displacement+index operands in their simple form (with a non- | |
495 | suppressed index without memory indirection) are supported on all CPUs, but | |
496 | on the 68000 the displacement can be 8-bit only, whereas on 68020 and higher | |
497 | and on CPU32 we relax it to SHORT and LONG forms as well using the extended | |
498 | form of the PC+displacement+index operand. Finally, some absolute operands | |
499 | can be relaxed down to 16-bit PC-relative. */ | |
500 | ||
36759679 NC |
501 | #define PCREL1632 7 /* 16-bit or 32-bit PC-relative. */ |
502 | #define PCINDEX 8 /* PC + displacement + index. */ | |
503 | #define ABSTOPCREL 9 /* Absolute relax down to 16-bit PC-relative. */ | |
252b5132 RH |
504 | |
505 | /* Note that calls to frag_var need to specify the maximum expansion | |
506 | needed; this is currently 10 bytes for DBCC. */ | |
507 | ||
508 | /* The fields are: | |
509 | How far Forward this mode will reach: | |
510 | How far Backward this mode will reach: | |
511 | How many bytes this mode will add to the size of the frag | |
512 | Which mode to go to if the offset won't fit in this one | |
d7861ad2 AM |
513 | |
514 | Please check tc-m68k.h:md_prepare_relax_scan if changing this table. */ | |
252b5132 RH |
515 | relax_typeS md_relax_table[] = |
516 | { | |
ac62c346 AM |
517 | { 127, -128, 0, TAB (BRANCHBWL, SHORT) }, |
518 | { 32767, -32768, 2, TAB (BRANCHBWL, LONG) }, | |
519 | { 0, 0, 4, 0 }, | |
520 | { 1, 1, 0, 0 }, | |
521 | ||
522 | { 127, -128, 0, TAB (BRABSJUNC, SHORT) }, | |
523 | { 32767, -32768, 2, TAB (BRABSJUNC, LONG) }, | |
524 | { 0, 0, 4, 0 }, | |
525 | { 1, 1, 0, 0 }, | |
526 | ||
527 | { 127, -128, 0, TAB (BRABSJCOND, SHORT) }, | |
528 | { 32767, -32768, 2, TAB (BRABSJCOND, LONG) }, | |
529 | { 0, 0, 6, 0 }, | |
530 | { 1, 1, 0, 0 }, | |
531 | ||
532 | { 127, -128, 0, TAB (BRANCHBW, SHORT) }, | |
533 | { 0, 0, 2, 0 }, | |
534 | { 1, 1, 0, 0 }, | |
535 | { 1, 1, 0, 0 }, | |
536 | ||
36759679 | 537 | { 1, 1, 0, 0 }, /* FBRANCH doesn't come BYTE. */ |
ac62c346 AM |
538 | { 32767, -32768, 2, TAB (FBRANCH, LONG) }, |
539 | { 0, 0, 4, 0 }, | |
540 | { 1, 1, 0, 0 }, | |
541 | ||
36759679 | 542 | { 1, 1, 0, 0 }, /* DBCC doesn't come BYTE. */ |
ac62c346 AM |
543 | { 32767, -32768, 2, TAB (DBCCLBR, LONG) }, |
544 | { 0, 0, 10, 0 }, | |
545 | { 1, 1, 0, 0 }, | |
546 | ||
36759679 | 547 | { 1, 1, 0, 0 }, /* DBCC doesn't come BYTE. */ |
ac62c346 AM |
548 | { 32767, -32768, 2, TAB (DBCCABSJ, LONG) }, |
549 | { 0, 0, 10, 0 }, | |
550 | { 1, 1, 0, 0 }, | |
551 | ||
36759679 | 552 | { 1, 1, 0, 0 }, /* PCREL1632 doesn't come BYTE. */ |
ac62c346 AM |
553 | { 32767, -32768, 2, TAB (PCREL1632, LONG) }, |
554 | { 0, 0, 6, 0 }, | |
555 | { 1, 1, 0, 0 }, | |
556 | ||
557 | { 125, -130, 0, TAB (PCINDEX, SHORT) }, | |
558 | { 32765, -32770, 2, TAB (PCINDEX, LONG) }, | |
559 | { 0, 0, 4, 0 }, | |
560 | { 1, 1, 0, 0 }, | |
561 | ||
36759679 | 562 | { 1, 1, 0, 0 }, /* ABSTOPCREL doesn't come BYTE. */ |
ac62c346 AM |
563 | { 32767, -32768, 2, TAB (ABSTOPCREL, LONG) }, |
564 | { 0, 0, 4, 0 }, | |
565 | { 1, 1, 0, 0 }, | |
252b5132 RH |
566 | }; |
567 | ||
568 | /* These are the machine dependent pseudo-ops. These are included so | |
569 | the assembler can work on the output from the SUN C compiler, which | |
36759679 | 570 | generates these. */ |
252b5132 RH |
571 | |
572 | /* This table describes all the machine specific pseudo-ops the assembler | |
573 | has to support. The fields are: | |
574 | pseudo-op name without dot | |
575 | function to call to execute this pseudo-op | |
36759679 | 576 | Integer arg to pass to the function. */ |
252b5132 RH |
577 | const pseudo_typeS md_pseudo_table[] = |
578 | { | |
579 | {"data1", s_data1, 0}, | |
580 | {"data2", s_data2, 0}, | |
581 | {"bss", s_bss, 0}, | |
582 | {"even", s_even, 0}, | |
583 | {"skip", s_space, 0}, | |
584 | {"proc", s_proc, 0}, | |
585 | #if defined (TE_SUN3) || defined (OBJ_ELF) | |
586 | {"align", s_align_bytes, 0}, | |
587 | #endif | |
588 | #ifdef OBJ_ELF | |
589 | {"swbeg", s_ignore, 0}, | |
590 | #endif | |
591 | {"extend", float_cons, 'x'}, | |
592 | {"ldouble", float_cons, 'x'}, | |
593 | ||
594 | /* The following pseudo-ops are supported for MRI compatibility. */ | |
595 | {"chip", s_chip, 0}, | |
596 | {"comline", s_space, 1}, | |
597 | {"fopt", s_fopt, 0}, | |
598 | {"mask2", s_ignore, 0}, | |
599 | {"opt", s_opt, 0}, | |
600 | {"reg", s_reg, 0}, | |
601 | {"restore", s_restore, 0}, | |
602 | {"save", s_save, 0}, | |
603 | ||
604 | {"if", s_mri_if, 0}, | |
605 | {"if.b", s_mri_if, 'b'}, | |
606 | {"if.w", s_mri_if, 'w'}, | |
607 | {"if.l", s_mri_if, 'l'}, | |
608 | {"else", s_mri_else, 0}, | |
609 | {"else.s", s_mri_else, 's'}, | |
610 | {"else.l", s_mri_else, 'l'}, | |
611 | {"endi", s_mri_endi, 0}, | |
612 | {"break", s_mri_break, 0}, | |
613 | {"break.s", s_mri_break, 's'}, | |
614 | {"break.l", s_mri_break, 'l'}, | |
615 | {"next", s_mri_next, 0}, | |
616 | {"next.s", s_mri_next, 's'}, | |
617 | {"next.l", s_mri_next, 'l'}, | |
618 | {"for", s_mri_for, 0}, | |
619 | {"for.b", s_mri_for, 'b'}, | |
620 | {"for.w", s_mri_for, 'w'}, | |
621 | {"for.l", s_mri_for, 'l'}, | |
622 | {"endf", s_mri_endf, 0}, | |
623 | {"repeat", s_mri_repeat, 0}, | |
624 | {"until", s_mri_until, 0}, | |
625 | {"until.b", s_mri_until, 'b'}, | |
626 | {"until.w", s_mri_until, 'w'}, | |
627 | {"until.l", s_mri_until, 'l'}, | |
628 | {"while", s_mri_while, 0}, | |
629 | {"while.b", s_mri_while, 'b'}, | |
630 | {"while.w", s_mri_while, 'w'}, | |
631 | {"while.l", s_mri_while, 'l'}, | |
632 | {"endw", s_mri_endw, 0}, | |
633 | ||
634 | {0, 0, 0} | |
635 | }; | |
636 | ||
252b5132 RH |
637 | /* The mote pseudo ops are put into the opcode table, since they |
638 | don't start with a . they look like opcodes to gas. | |
639 | */ | |
640 | ||
641 | #ifdef M68KCOFF | |
642 | extern void obj_coff_section PARAMS ((int)); | |
643 | #endif | |
644 | ||
5a38dc70 | 645 | const pseudo_typeS mote_pseudo_table[] = |
252b5132 RH |
646 | { |
647 | ||
648 | {"dcl", cons, 4}, | |
649 | {"dc", cons, 2}, | |
650 | {"dcw", cons, 2}, | |
651 | {"dcb", cons, 1}, | |
652 | ||
653 | {"dsl", s_space, 4}, | |
654 | {"ds", s_space, 2}, | |
655 | {"dsw", s_space, 2}, | |
656 | {"dsb", s_space, 1}, | |
657 | ||
658 | {"xdef", s_globl, 0}, | |
659 | #ifdef OBJ_ELF | |
660 | {"align", s_align_bytes, 0}, | |
661 | #else | |
662 | {"align", s_align_ptwo, 0}, | |
663 | #endif | |
664 | #ifdef M68KCOFF | |
665 | {"sect", obj_coff_section, 0}, | |
666 | {"section", obj_coff_section, 0}, | |
667 | #endif | |
668 | {0, 0, 0} | |
669 | }; | |
670 | ||
671 | #define issbyte(x) ((x)>=-128 && (x)<=127) | |
672 | #define isubyte(x) ((x)>=0 && (x)<=255) | |
673 | #define issword(x) ((x)>=-32768 && (x)<=32767) | |
674 | #define isuword(x) ((x)>=0 && (x)<=65535) | |
675 | ||
676 | #define isbyte(x) ((x)>= -255 && (x)<=255) | |
677 | #define isword(x) ((x)>=-65536 && (x)<=65535) | |
678 | #define islong(x) (1) | |
679 | ||
680 | extern char *input_line_pointer; | |
681 | ||
252b5132 RH |
682 | static char notend_table[256]; |
683 | static char alt_notend_table[256]; | |
684 | #define notend(s) \ | |
685 | (! (notend_table[(unsigned char) *s] \ | |
686 | || (*s == ':' \ | |
687 | && alt_notend_table[(unsigned char) s[1]]))) | |
688 | ||
6b6e92f4 NC |
689 | /* Return a human readable string holding the list of chips that are |
690 | valid for a particular architecture, suppressing aliases (unless | |
691 | there is only one of them). */ | |
692 | ||
693 | static char * | |
694 | find_cf_chip (int architecture) | |
695 | { | |
696 | static char buf[1024]; | |
697 | int i, j, n_chips, n_alias; | |
698 | char *cp; | |
699 | ||
700 | strcpy (buf, " ("); | |
701 | cp = buf + strlen (buf); | |
702 | ||
703 | for (i = 0, n_chips = 0, n_alias = 0; i < n_archs; ++i) | |
704 | if (archs[i].arch & architecture) | |
705 | { | |
706 | n_chips++; | |
707 | if (archs[i].alias) | |
708 | n_alias++; | |
709 | } | |
710 | ||
711 | if (n_chips == 0) | |
712 | as_fatal (_("no matching ColdFire architectures found")); | |
713 | ||
714 | if (n_alias > 1) | |
715 | n_chips -= n_alias; | |
716 | ||
717 | for (i = 0, j = 0; i < n_archs && j < n_chips; ++i) | |
718 | if (archs[i].arch & architecture) | |
719 | { | |
720 | if (j) | |
721 | { | |
722 | if (((j == n_chips - 1) && !(n_alias > 1))|| ! n_alias) | |
723 | { | |
724 | if (n_chips == 2) | |
725 | { | |
726 | strncpy (cp, _(" or "), (sizeof (buf) - (cp - buf))); | |
727 | cp += strlen (cp); | |
728 | } | |
729 | else | |
730 | { | |
731 | strncpy (cp, _(", or "), (sizeof (buf) - (cp - buf))); | |
732 | cp += strlen (cp); | |
733 | } | |
734 | } | |
735 | else | |
736 | { | |
737 | strncpy (cp, ", ", (sizeof (buf) - (cp - buf))); | |
738 | cp += strlen (cp); | |
739 | } | |
740 | } | |
741 | strncpy (cp, archs[i].name, (sizeof (buf) - (cp - buf))); | |
742 | cp += strlen (cp); | |
743 | j++; | |
744 | } | |
745 | ||
746 | if (n_alias > 1) | |
747 | { | |
748 | strncpy (cp, _(", or aliases"), (sizeof (buf) - (cp - buf))); | |
749 | cp += strlen (cp); | |
750 | } | |
751 | ||
752 | strncpy (cp, ")", (sizeof (buf) - (cp - buf))); | |
753 | ||
754 | return buf; | |
755 | } | |
756 | ||
252b5132 RH |
757 | #if defined (M68KCOFF) && !defined (BFD_ASSEMBLER) |
758 | ||
759 | #ifdef NO_PCREL_RELOCS | |
760 | ||
761 | int | |
6b6e92f4 | 762 | make_pcrel_absolute (fixP, add_number) |
252b5132 RH |
763 | fixS *fixP; |
764 | long *add_number; | |
765 | { | |
766 | register unsigned char *opcode = fixP->fx_frag->fr_opcode; | |
767 | ||
36759679 | 768 | /* Rewrite the PC relative instructions to absolute address ones. |
67c1ffbe | 769 | these are rumored to be faster, and the apollo linker refuses |
36759679 NC |
770 | to deal with the PC relative relocations. */ |
771 | if (opcode[0] == 0x60 && opcode[1] == 0xff) /* BRA -> JMP. */ | |
252b5132 | 772 | { |
36759679 | 773 | if (flag_keep_pcrel) |
6b6e92f4 | 774 | as_fatal (_("Tried to convert PC relative branch to absolute jump")); |
252b5132 RH |
775 | opcode[0] = 0x4e; |
776 | opcode[1] = 0xf9; | |
777 | } | |
36759679 | 778 | else if (opcode[0] == 0x61 && opcode[1] == 0xff) /* BSR -> JSR. */ |
252b5132 | 779 | { |
36759679 | 780 | if (flag_keep_pcrel) |
6b6e92f4 | 781 | as_fatal (_("Tried to convert PC relative BSR to absolute JSR")); |
252b5132 RH |
782 | opcode[0] = 0x4e; |
783 | opcode[1] = 0xb9; | |
784 | } | |
785 | else | |
786 | as_fatal (_("Unknown PC relative instruction")); | |
787 | *add_number -= 4; | |
788 | return 0; | |
789 | } | |
790 | ||
791 | #endif /* NO_PCREL_RELOCS */ | |
792 | ||
793 | short | |
794 | tc_coff_fix2rtype (fixP) | |
795 | fixS *fixP; | |
796 | { | |
797 | if (fixP->fx_tcbit && fixP->fx_size == 4) | |
798 | return R_RELLONG_NEG; | |
799 | #ifdef NO_PCREL_RELOCS | |
800 | know (fixP->fx_pcrel == 0); | |
801 | return (fixP->fx_size == 1 ? R_RELBYTE | |
802 | : fixP->fx_size == 2 ? R_DIR16 | |
803 | : R_DIR32); | |
804 | #else | |
805 | return (fixP->fx_pcrel ? | |
806 | (fixP->fx_size == 1 ? R_PCRBYTE : | |
807 | fixP->fx_size == 2 ? R_PCRWORD : | |
808 | R_PCRLONG) : | |
809 | (fixP->fx_size == 1 ? R_RELBYTE : | |
810 | fixP->fx_size == 2 ? R_RELWORD : | |
811 | R_RELLONG)); | |
812 | #endif | |
813 | } | |
814 | ||
815 | #endif | |
816 | ||
817 | #ifdef OBJ_ELF | |
818 | ||
c801568a AM |
819 | /* Return zero if the reference to SYMBOL from within the same segment may |
820 | be relaxed. */ | |
821 | ||
822 | /* On an ELF system, we can't relax an externally visible symbol, | |
823 | because it may be overridden by a shared library. However, if | |
824 | TARGET_OS is "elf", then we presume that we are assembling for an | |
825 | embedded system, in which case we don't have to worry about shared | |
826 | libraries, and we can relax any external sym. */ | |
827 | ||
828 | #define relaxable_symbol(symbol) \ | |
6358301e | 829 | (!((S_IS_EXTERNAL (symbol) && EXTERN_FORCE_RELOC) \ |
c801568a AM |
830 | || S_IS_WEAK (symbol))) |
831 | ||
252b5132 RH |
832 | /* Compute the relocation code for a fixup of SIZE bytes, using pc |
833 | relative relocation if PCREL is non-zero. PIC says whether a special | |
834 | pic relocation was requested. */ | |
835 | ||
836 | static bfd_reloc_code_real_type get_reloc_code | |
837 | PARAMS ((int, int, enum pic_relocation)); | |
838 | ||
839 | static bfd_reloc_code_real_type | |
840 | get_reloc_code (size, pcrel, pic) | |
841 | int size; | |
842 | int pcrel; | |
843 | enum pic_relocation pic; | |
844 | { | |
845 | switch (pic) | |
846 | { | |
847 | case pic_got_pcrel: | |
848 | switch (size) | |
849 | { | |
850 | case 1: | |
851 | return BFD_RELOC_8_GOT_PCREL; | |
852 | case 2: | |
853 | return BFD_RELOC_16_GOT_PCREL; | |
854 | case 4: | |
855 | return BFD_RELOC_32_GOT_PCREL; | |
856 | } | |
857 | break; | |
858 | ||
859 | case pic_got_off: | |
860 | switch (size) | |
861 | { | |
862 | case 1: | |
863 | return BFD_RELOC_8_GOTOFF; | |
864 | case 2: | |
865 | return BFD_RELOC_16_GOTOFF; | |
866 | case 4: | |
867 | return BFD_RELOC_32_GOTOFF; | |
868 | } | |
869 | break; | |
870 | ||
871 | case pic_plt_pcrel: | |
872 | switch (size) | |
873 | { | |
874 | case 1: | |
875 | return BFD_RELOC_8_PLT_PCREL; | |
876 | case 2: | |
877 | return BFD_RELOC_16_PLT_PCREL; | |
878 | case 4: | |
879 | return BFD_RELOC_32_PLT_PCREL; | |
880 | } | |
881 | break; | |
882 | ||
883 | case pic_plt_off: | |
884 | switch (size) | |
885 | { | |
886 | case 1: | |
887 | return BFD_RELOC_8_PLTOFF; | |
888 | case 2: | |
889 | return BFD_RELOC_16_PLTOFF; | |
890 | case 4: | |
891 | return BFD_RELOC_32_PLTOFF; | |
892 | } | |
893 | break; | |
894 | ||
895 | case pic_none: | |
896 | if (pcrel) | |
897 | { | |
898 | switch (size) | |
899 | { | |
900 | case 1: | |
901 | return BFD_RELOC_8_PCREL; | |
902 | case 2: | |
903 | return BFD_RELOC_16_PCREL; | |
904 | case 4: | |
905 | return BFD_RELOC_32_PCREL; | |
906 | } | |
907 | } | |
908 | else | |
909 | { | |
910 | switch (size) | |
911 | { | |
912 | case 1: | |
913 | return BFD_RELOC_8; | |
914 | case 2: | |
915 | return BFD_RELOC_16; | |
916 | case 4: | |
917 | return BFD_RELOC_32; | |
918 | } | |
919 | } | |
920 | } | |
921 | ||
922 | if (pcrel) | |
923 | { | |
924 | if (pic == pic_none) | |
925 | as_bad (_("Can not do %d byte pc-relative relocation"), size); | |
926 | else | |
927 | as_bad (_("Can not do %d byte pc-relative pic relocation"), size); | |
928 | } | |
929 | else | |
930 | { | |
931 | if (pic == pic_none) | |
932 | as_bad (_("Can not do %d byte relocation"), size); | |
933 | else | |
934 | as_bad (_("Can not do %d byte pic relocation"), size); | |
935 | } | |
936 | ||
937 | return BFD_RELOC_NONE; | |
938 | } | |
939 | ||
940 | /* Here we decide which fixups can be adjusted to make them relative | |
941 | to the beginning of the section instead of the symbol. Basically | |
942 | we need to make sure that the dynamic relocations are done | |
943 | correctly, so in some cases we force the original symbol to be | |
944 | used. */ | |
945 | int | |
946 | tc_m68k_fix_adjustable (fixP) | |
947 | fixS *fixP; | |
948 | { | |
36759679 | 949 | /* Adjust_reloc_syms doesn't know about the GOT. */ |
252b5132 RH |
950 | switch (fixP->fx_r_type) |
951 | { | |
952 | case BFD_RELOC_8_GOT_PCREL: | |
953 | case BFD_RELOC_16_GOT_PCREL: | |
954 | case BFD_RELOC_32_GOT_PCREL: | |
955 | case BFD_RELOC_8_GOTOFF: | |
956 | case BFD_RELOC_16_GOTOFF: | |
957 | case BFD_RELOC_32_GOTOFF: | |
958 | case BFD_RELOC_8_PLT_PCREL: | |
959 | case BFD_RELOC_16_PLT_PCREL: | |
960 | case BFD_RELOC_32_PLT_PCREL: | |
961 | case BFD_RELOC_8_PLTOFF: | |
962 | case BFD_RELOC_16_PLTOFF: | |
963 | case BFD_RELOC_32_PLTOFF: | |
964 | return 0; | |
965 | ||
966 | case BFD_RELOC_VTABLE_INHERIT: | |
967 | case BFD_RELOC_VTABLE_ENTRY: | |
968 | return 0; | |
969 | ||
970 | default: | |
971 | return 1; | |
972 | } | |
973 | } | |
974 | ||
975 | #else /* !OBJ_ELF */ | |
976 | ||
977 | #define get_reloc_code(SIZE,PCREL,OTHER) NO_RELOC | |
978 | ||
c801568a AM |
979 | #define relaxable_symbol(symbol) 1 |
980 | ||
252b5132 RH |
981 | #endif /* OBJ_ELF */ |
982 | ||
983 | #ifdef BFD_ASSEMBLER | |
984 | ||
985 | arelent * | |
986 | tc_gen_reloc (section, fixp) | |
f1f5ef86 | 987 | asection *section ATTRIBUTE_UNUSED; |
252b5132 RH |
988 | fixS *fixp; |
989 | { | |
990 | arelent *reloc; | |
991 | bfd_reloc_code_real_type code; | |
992 | ||
8ec6253e NC |
993 | /* If the tcbit is set, then this was a fixup of a negative value |
994 | that was never resolved. We do not have a reloc to handle this, | |
995 | so just return. We assume that other code will have detected this | |
996 | situation and produced a helpful error message, so we just tell the | |
997 | user that the reloc cannot be produced. */ | |
252b5132 | 998 | if (fixp->fx_tcbit) |
8ec6253e NC |
999 | { |
1000 | if (fixp->fx_addsy) | |
b091f402 AM |
1001 | as_bad_where (fixp->fx_file, fixp->fx_line, |
1002 | _("Unable to produce reloc against symbol '%s'"), | |
1003 | S_GET_NAME (fixp->fx_addsy)); | |
8ec6253e NC |
1004 | return NULL; |
1005 | } | |
252b5132 RH |
1006 | |
1007 | if (fixp->fx_r_type != BFD_RELOC_NONE) | |
1008 | { | |
1009 | code = fixp->fx_r_type; | |
1010 | ||
1011 | /* Since DIFF_EXPR_OK is defined in tc-m68k.h, it is possible | |
1012 | that fixup_segment converted a non-PC relative reloc into a | |
1013 | PC relative reloc. In such a case, we need to convert the | |
1014 | reloc code. */ | |
1015 | if (fixp->fx_pcrel) | |
1016 | { | |
1017 | switch (code) | |
1018 | { | |
1019 | case BFD_RELOC_8: | |
1020 | code = BFD_RELOC_8_PCREL; | |
1021 | break; | |
1022 | case BFD_RELOC_16: | |
1023 | code = BFD_RELOC_16_PCREL; | |
1024 | break; | |
1025 | case BFD_RELOC_32: | |
1026 | code = BFD_RELOC_32_PCREL; | |
1027 | break; | |
1028 | case BFD_RELOC_8_PCREL: | |
1029 | case BFD_RELOC_16_PCREL: | |
1030 | case BFD_RELOC_32_PCREL: | |
1031 | case BFD_RELOC_8_GOT_PCREL: | |
1032 | case BFD_RELOC_16_GOT_PCREL: | |
1033 | case BFD_RELOC_32_GOT_PCREL: | |
1034 | case BFD_RELOC_8_GOTOFF: | |
1035 | case BFD_RELOC_16_GOTOFF: | |
1036 | case BFD_RELOC_32_GOTOFF: | |
1037 | case BFD_RELOC_8_PLT_PCREL: | |
1038 | case BFD_RELOC_16_PLT_PCREL: | |
1039 | case BFD_RELOC_32_PLT_PCREL: | |
1040 | case BFD_RELOC_8_PLTOFF: | |
1041 | case BFD_RELOC_16_PLTOFF: | |
1042 | case BFD_RELOC_32_PLTOFF: | |
1043 | break; | |
1044 | default: | |
1045 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
1046 | _("Cannot make %s relocation PC relative"), | |
1047 | bfd_get_reloc_code_name (code)); | |
1048 | } | |
1049 | } | |
1050 | } | |
1051 | else | |
1052 | { | |
1053 | #define F(SZ,PCREL) (((SZ) << 1) + (PCREL)) | |
1054 | switch (F (fixp->fx_size, fixp->fx_pcrel)) | |
1055 | { | |
1056 | #define MAP(SZ,PCREL,TYPE) case F(SZ,PCREL): code = (TYPE); break | |
1057 | MAP (1, 0, BFD_RELOC_8); | |
1058 | MAP (2, 0, BFD_RELOC_16); | |
1059 | MAP (4, 0, BFD_RELOC_32); | |
1060 | MAP (1, 1, BFD_RELOC_8_PCREL); | |
1061 | MAP (2, 1, BFD_RELOC_16_PCREL); | |
1062 | MAP (4, 1, BFD_RELOC_32_PCREL); | |
1063 | default: | |
1064 | abort (); | |
1065 | } | |
1066 | } | |
1067 | #undef F | |
1068 | #undef MAP | |
1069 | ||
1070 | reloc = (arelent *) xmalloc (sizeof (arelent)); | |
49309057 ILT |
1071 | reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); |
1072 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); | |
252b5132 RH |
1073 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; |
1074 | #ifndef OBJ_ELF | |
1075 | if (fixp->fx_pcrel) | |
1076 | reloc->addend = fixp->fx_addnumber; | |
1077 | else | |
1078 | reloc->addend = 0; | |
1079 | #else | |
1080 | if (!fixp->fx_pcrel) | |
1081 | reloc->addend = fixp->fx_addnumber; | |
1082 | else | |
1083 | reloc->addend = (section->vma | |
8390138c AS |
1084 | /* Explicit sign extension in case char is |
1085 | unsigned. */ | |
1086 | + ((fixp->fx_pcrel_adjust & 0xff) ^ 0x80) - 0x80 | |
252b5132 RH |
1087 | + fixp->fx_addnumber |
1088 | + md_pcrel_from (fixp)); | |
1089 | #endif | |
1090 | ||
1091 | reloc->howto = bfd_reloc_type_lookup (stdoutput, code); | |
1092 | assert (reloc->howto != 0); | |
1093 | ||
1094 | return reloc; | |
1095 | } | |
1096 | ||
1097 | #endif /* BFD_ASSEMBLER */ | |
1098 | ||
252b5132 RH |
1099 | /* Handle of the OPCODE hash table. NULL means any use before |
1100 | m68k_ip_begin() will crash. */ | |
1101 | static struct hash_control *op_hash; | |
1102 | \f | |
1103 | /* Assemble an m68k instruction. */ | |
1104 | ||
1105 | static void | |
1106 | m68k_ip (instring) | |
1107 | char *instring; | |
1108 | { | |
1109 | register char *p; | |
1110 | register struct m68k_op *opP; | |
1111 | register const struct m68k_incant *opcode; | |
1112 | register const char *s; | |
1113 | register int tmpreg = 0, baseo = 0, outro = 0, nextword; | |
1114 | char *pdot, *pdotmove; | |
1115 | enum m68k_size siz1, siz2; | |
1116 | char c; | |
1117 | int losing; | |
1118 | int opsfound; | |
1119 | LITTLENUM_TYPE words[6]; | |
1120 | LITTLENUM_TYPE *wordp; | |
1121 | unsigned long ok_arch = 0; | |
1122 | ||
1123 | if (*instring == ' ') | |
36759679 | 1124 | instring++; /* Skip leading whitespace. */ |
252b5132 RH |
1125 | |
1126 | /* Scan up to end of operation-code, which MUST end in end-of-string | |
92774660 | 1127 | or exactly 1 space. */ |
252b5132 RH |
1128 | pdot = 0; |
1129 | for (p = instring; *p != '\0'; p++) | |
1130 | { | |
1131 | if (*p == ' ') | |
1132 | break; | |
1133 | if (*p == '.') | |
1134 | pdot = p; | |
1135 | } | |
1136 | ||
1137 | if (p == instring) | |
1138 | { | |
1139 | the_ins.error = _("No operator"); | |
1140 | return; | |
1141 | } | |
1142 | ||
1143 | /* p now points to the end of the opcode name, probably whitespace. | |
1144 | Make sure the name is null terminated by clobbering the | |
1145 | whitespace, look it up in the hash table, then fix it back. | |
1146 | Remove a dot, first, since the opcode tables have none. */ | |
1147 | if (pdot != NULL) | |
1148 | { | |
1149 | for (pdotmove = pdot; pdotmove < p; pdotmove++) | |
1150 | *pdotmove = pdotmove[1]; | |
1151 | p--; | |
1152 | } | |
1153 | ||
1154 | c = *p; | |
1155 | *p = '\0'; | |
1156 | opcode = (const struct m68k_incant *) hash_find (op_hash, instring); | |
1157 | *p = c; | |
1158 | ||
1159 | if (pdot != NULL) | |
1160 | { | |
1161 | for (pdotmove = p; pdotmove > pdot; pdotmove--) | |
1162 | *pdotmove = pdotmove[-1]; | |
1163 | *pdot = '.'; | |
1164 | ++p; | |
1165 | } | |
1166 | ||
1167 | if (opcode == NULL) | |
1168 | { | |
1169 | the_ins.error = _("Unknown operator"); | |
1170 | return; | |
1171 | } | |
1172 | ||
36759679 | 1173 | /* Found a legitimate opcode, start matching operands. */ |
252b5132 RH |
1174 | while (*p == ' ') |
1175 | ++p; | |
1176 | ||
1177 | if (opcode->m_operands == 0) | |
1178 | { | |
1179 | char *old = input_line_pointer; | |
1180 | *old = '\n'; | |
1181 | input_line_pointer = p; | |
36759679 | 1182 | /* Ahh - it's a motorola style psuedo op. */ |
252b5132 RH |
1183 | mote_pseudo_table[opcode->m_opnum].poc_handler |
1184 | (mote_pseudo_table[opcode->m_opnum].poc_val); | |
1185 | input_line_pointer = old; | |
1186 | *old = 0; | |
1187 | ||
1188 | return; | |
1189 | } | |
1190 | ||
1191 | if (flag_mri && opcode->m_opnum == 0) | |
1192 | { | |
1193 | /* In MRI mode, random garbage is allowed after an instruction | |
1194 | which accepts no operands. */ | |
1195 | the_ins.args = opcode->m_operands; | |
1196 | the_ins.numargs = opcode->m_opnum; | |
1197 | the_ins.numo = opcode->m_codenum; | |
1198 | the_ins.opcode[0] = getone (opcode); | |
1199 | the_ins.opcode[1] = gettwo (opcode); | |
1200 | return; | |
1201 | } | |
1202 | ||
1203 | for (opP = &the_ins.operands[0]; *p; opP++) | |
1204 | { | |
1205 | p = crack_operand (p, opP); | |
1206 | ||
1207 | if (opP->error) | |
1208 | { | |
1209 | the_ins.error = opP->error; | |
1210 | return; | |
1211 | } | |
1212 | } | |
1213 | ||
1214 | opsfound = opP - &the_ins.operands[0]; | |
1215 | ||
1216 | /* This ugly hack is to support the floating pt opcodes in their | |
1217 | standard form. Essentially, we fake a first enty of type COP#1 */ | |
1218 | if (opcode->m_operands[0] == 'I') | |
1219 | { | |
1220 | int n; | |
1221 | ||
1222 | for (n = opsfound; n > 0; --n) | |
1223 | the_ins.operands[n] = the_ins.operands[n - 1]; | |
1224 | ||
1225 | memset ((char *) (&the_ins.operands[0]), '\0', | |
1226 | sizeof (the_ins.operands[0])); | |
1227 | the_ins.operands[0].mode = CONTROL; | |
1228 | the_ins.operands[0].reg = m68k_float_copnum; | |
1229 | opsfound++; | |
1230 | } | |
1231 | ||
36759679 | 1232 | /* We've got the operands. Find an opcode that'll accept them. */ |
252b5132 RH |
1233 | for (losing = 0;;) |
1234 | { | |
1235 | /* If we didn't get the right number of ops, or we have no | |
92774660 | 1236 | common model with this pattern then reject this pattern. */ |
252b5132 RH |
1237 | |
1238 | ok_arch |= opcode->m_arch; | |
1239 | if (opsfound != opcode->m_opnum | |
1240 | || ((opcode->m_arch & current_architecture) == 0)) | |
1241 | ++losing; | |
1242 | else | |
1243 | { | |
1244 | for (s = opcode->m_operands, opP = &the_ins.operands[0]; | |
1245 | *s && !losing; | |
1246 | s += 2, opP++) | |
1247 | { | |
1248 | /* Warning: this switch is huge! */ | |
1249 | /* I've tried to organize the cases into this order: | |
1250 | non-alpha first, then alpha by letter. Lower-case | |
1251 | goes directly before uppercase counterpart. */ | |
1252 | /* Code with multiple case ...: gets sorted by the lowest | |
1253 | case ... it belongs to. I hope this makes sense. */ | |
1254 | switch (*s) | |
1255 | { | |
1256 | case '!': | |
1257 | switch (opP->mode) | |
1258 | { | |
1259 | case IMMED: | |
1260 | case DREG: | |
1261 | case AREG: | |
1262 | case FPREG: | |
1263 | case CONTROL: | |
1264 | case AINC: | |
1265 | case ADEC: | |
1266 | case REGLST: | |
1267 | losing++; | |
1268 | break; | |
1269 | default: | |
1270 | break; | |
1271 | } | |
1272 | break; | |
1273 | ||
1274 | case '<': | |
1275 | switch (opP->mode) | |
1276 | { | |
1277 | case DREG: | |
1278 | case AREG: | |
1279 | case FPREG: | |
1280 | case CONTROL: | |
1281 | case IMMED: | |
1282 | case ADEC: | |
1283 | case REGLST: | |
1284 | losing++; | |
1285 | break; | |
1286 | default: | |
1287 | break; | |
1288 | } | |
1289 | break; | |
1290 | ||
1291 | case '>': | |
1292 | switch (opP->mode) | |
1293 | { | |
1294 | case DREG: | |
1295 | case AREG: | |
1296 | case FPREG: | |
1297 | case CONTROL: | |
1298 | case IMMED: | |
1299 | case AINC: | |
1300 | case REGLST: | |
1301 | losing++; | |
1302 | break; | |
1303 | case ABSL: | |
1304 | break; | |
1305 | default: | |
1306 | if (opP->reg == PC | |
1307 | || opP->reg == ZPC) | |
1308 | losing++; | |
1309 | break; | |
1310 | } | |
1311 | break; | |
1312 | ||
1313 | case 'm': | |
1314 | switch (opP->mode) | |
1315 | { | |
1316 | case DREG: | |
1317 | case AREG: | |
1318 | case AINDR: | |
1319 | case AINC: | |
1320 | case ADEC: | |
1321 | break; | |
1322 | default: | |
1323 | losing++; | |
1324 | } | |
8a104df9 | 1325 | break; |
252b5132 RH |
1326 | |
1327 | case 'n': | |
1328 | switch (opP->mode) | |
1329 | { | |
1330 | case DISP: | |
1331 | break; | |
1332 | default: | |
1333 | losing++; | |
1334 | } | |
8a104df9 | 1335 | break; |
252b5132 RH |
1336 | |
1337 | case 'o': | |
1338 | switch (opP->mode) | |
1339 | { | |
1340 | case BASE: | |
1341 | case ABSL: | |
1342 | case IMMED: | |
1343 | break; | |
1344 | default: | |
1345 | losing++; | |
1346 | } | |
8a104df9 | 1347 | break; |
252b5132 RH |
1348 | |
1349 | case 'p': | |
1350 | switch (opP->mode) | |
1351 | { | |
1352 | case DREG: | |
1353 | case AREG: | |
1354 | case AINDR: | |
1355 | case AINC: | |
1356 | case ADEC: | |
1357 | break; | |
1358 | case DISP: | |
1359 | if (opP->reg == PC || opP->reg == ZPC) | |
8a104df9 | 1360 | losing++; |
252b5132 RH |
1361 | break; |
1362 | default: | |
1363 | losing++; | |
1364 | } | |
8a104df9 | 1365 | break; |
252b5132 RH |
1366 | |
1367 | case 'q': | |
1368 | switch (opP->mode) | |
1369 | { | |
1370 | case DREG: | |
1371 | case AINDR: | |
1372 | case AINC: | |
1373 | case ADEC: | |
1374 | break; | |
1375 | case DISP: | |
1376 | if (opP->reg == PC || opP->reg == ZPC) | |
8a104df9 | 1377 | losing++; |
252b5132 RH |
1378 | break; |
1379 | default: | |
1380 | losing++; | |
1381 | break; | |
1382 | } | |
8a104df9 | 1383 | break; |
252b5132 RH |
1384 | |
1385 | case 'v': | |
1386 | switch (opP->mode) | |
1387 | { | |
1388 | case DREG: | |
1389 | case AINDR: | |
1390 | case AINC: | |
1391 | case ADEC: | |
1392 | case ABSL: | |
1393 | break; | |
1394 | case DISP: | |
1395 | if (opP->reg == PC || opP->reg == ZPC) | |
8a104df9 | 1396 | losing++; |
252b5132 RH |
1397 | break; |
1398 | default: | |
1399 | losing++; | |
1400 | break; | |
1401 | } | |
1402 | break; | |
1403 | ||
1404 | case '#': | |
1405 | if (opP->mode != IMMED) | |
1406 | losing++; | |
1407 | else if (s[1] == 'b' | |
1408 | && ! isvar (&opP->disp) | |
1409 | && (opP->disp.exp.X_op != O_constant | |
1410 | || ! isbyte (opP->disp.exp.X_add_number))) | |
1411 | losing++; | |
1412 | else if (s[1] == 'B' | |
1413 | && ! isvar (&opP->disp) | |
1414 | && (opP->disp.exp.X_op != O_constant | |
1415 | || ! issbyte (opP->disp.exp.X_add_number))) | |
1416 | losing++; | |
1417 | else if (s[1] == 'w' | |
1418 | && ! isvar (&opP->disp) | |
1419 | && (opP->disp.exp.X_op != O_constant | |
1420 | || ! isword (opP->disp.exp.X_add_number))) | |
1421 | losing++; | |
1422 | else if (s[1] == 'W' | |
1423 | && ! isvar (&opP->disp) | |
1424 | && (opP->disp.exp.X_op != O_constant | |
1425 | || ! issword (opP->disp.exp.X_add_number))) | |
1426 | losing++; | |
1427 | break; | |
1428 | ||
1429 | case '^': | |
1430 | case 'T': | |
1431 | if (opP->mode != IMMED) | |
1432 | losing++; | |
1433 | break; | |
1434 | ||
1435 | case '$': | |
1436 | if (opP->mode == AREG | |
1437 | || opP->mode == CONTROL | |
1438 | || opP->mode == FPREG | |
1439 | || opP->mode == IMMED | |
1440 | || opP->mode == REGLST | |
1441 | || (opP->mode != ABSL | |
1442 | && (opP->reg == PC | |
1443 | || opP->reg == ZPC))) | |
1444 | losing++; | |
1445 | break; | |
1446 | ||
1447 | case '%': | |
1448 | if (opP->mode == CONTROL | |
1449 | || opP->mode == FPREG | |
1450 | || opP->mode == REGLST | |
1451 | || opP->mode == IMMED | |
1452 | || (opP->mode != ABSL | |
1453 | && (opP->reg == PC | |
1454 | || opP->reg == ZPC))) | |
1455 | losing++; | |
1456 | break; | |
1457 | ||
1458 | case '&': | |
1459 | switch (opP->mode) | |
1460 | { | |
1461 | case DREG: | |
1462 | case AREG: | |
1463 | case FPREG: | |
1464 | case CONTROL: | |
1465 | case IMMED: | |
1466 | case AINC: | |
1467 | case ADEC: | |
1468 | case REGLST: | |
1469 | losing++; | |
1470 | break; | |
1471 | case ABSL: | |
1472 | break; | |
1473 | default: | |
1474 | if (opP->reg == PC | |
1475 | || opP->reg == ZPC) | |
1476 | losing++; | |
1477 | break; | |
1478 | } | |
1479 | break; | |
1480 | ||
1481 | case '*': | |
1482 | if (opP->mode == CONTROL | |
1483 | || opP->mode == FPREG | |
1484 | || opP->mode == REGLST) | |
1485 | losing++; | |
1486 | break; | |
1487 | ||
1488 | case '+': | |
1489 | if (opP->mode != AINC) | |
1490 | losing++; | |
1491 | break; | |
1492 | ||
1493 | case '-': | |
1494 | if (opP->mode != ADEC) | |
1495 | losing++; | |
1496 | break; | |
1497 | ||
1498 | case '/': | |
1499 | switch (opP->mode) | |
1500 | { | |
1501 | case AREG: | |
1502 | case CONTROL: | |
1503 | case FPREG: | |
1504 | case AINC: | |
1505 | case ADEC: | |
1506 | case IMMED: | |
1507 | case REGLST: | |
1508 | losing++; | |
1509 | break; | |
1510 | default: | |
1511 | break; | |
1512 | } | |
1513 | break; | |
1514 | ||
1515 | case ';': | |
1516 | switch (opP->mode) | |
1517 | { | |
1518 | case AREG: | |
1519 | case CONTROL: | |
1520 | case FPREG: | |
1521 | case REGLST: | |
1522 | losing++; | |
1523 | break; | |
1524 | default: | |
1525 | break; | |
1526 | } | |
1527 | break; | |
1528 | ||
1529 | case '?': | |
1530 | switch (opP->mode) | |
1531 | { | |
1532 | case AREG: | |
1533 | case CONTROL: | |
1534 | case FPREG: | |
1535 | case AINC: | |
1536 | case ADEC: | |
1537 | case IMMED: | |
1538 | case REGLST: | |
1539 | losing++; | |
1540 | break; | |
1541 | case ABSL: | |
1542 | break; | |
1543 | default: | |
1544 | if (opP->reg == PC || opP->reg == ZPC) | |
1545 | losing++; | |
1546 | break; | |
1547 | } | |
1548 | break; | |
1549 | ||
1550 | case '@': | |
1551 | switch (opP->mode) | |
1552 | { | |
1553 | case AREG: | |
1554 | case CONTROL: | |
1555 | case FPREG: | |
1556 | case IMMED: | |
1557 | case REGLST: | |
1558 | losing++; | |
1559 | break; | |
1560 | default: | |
1561 | break; | |
1562 | } | |
1563 | break; | |
1564 | ||
1565 | case '~': /* For now! (JF FOO is this right?) */ | |
1566 | switch (opP->mode) | |
1567 | { | |
1568 | case DREG: | |
1569 | case AREG: | |
1570 | case CONTROL: | |
1571 | case FPREG: | |
1572 | case IMMED: | |
1573 | case REGLST: | |
1574 | losing++; | |
1575 | break; | |
1576 | case ABSL: | |
1577 | break; | |
1578 | default: | |
1579 | if (opP->reg == PC | |
1580 | || opP->reg == ZPC) | |
1581 | losing++; | |
1582 | break; | |
1583 | } | |
1584 | break; | |
1585 | ||
1586 | case '3': | |
1587 | if (opP->mode != CONTROL | |
1588 | || (opP->reg != TT0 && opP->reg != TT1)) | |
1589 | losing++; | |
1590 | break; | |
1591 | ||
1592 | case 'A': | |
1593 | if (opP->mode != AREG) | |
1594 | losing++; | |
1595 | break; | |
1596 | ||
1597 | case 'a': | |
1598 | if (opP->mode != AINDR) | |
1599 | ++losing; | |
1600 | break; | |
1601 | ||
fd99574b NC |
1602 | case '4': |
1603 | if (opP->mode != AINDR && opP->mode != AINC && opP->mode != ADEC | |
1604 | && (opP->mode != DISP | |
1605 | || opP->reg < ADDR0 | |
1606 | || opP->reg > ADDR7)) | |
1607 | ++losing; | |
1608 | break; | |
1609 | ||
252b5132 RH |
1610 | case 'B': /* FOO */ |
1611 | if (opP->mode != ABSL | |
1612 | || (flag_long_jumps | |
1613 | && strncmp (instring, "jbsr", 4) == 0)) | |
1614 | losing++; | |
1615 | break; | |
1616 | ||
3e602632 NC |
1617 | case 'b': |
1618 | switch (opP->mode) | |
1619 | { | |
1620 | case IMMED: | |
1621 | case ABSL: | |
1622 | case AREG: | |
1623 | case FPREG: | |
1624 | case CONTROL: | |
1625 | case POST: | |
1626 | case PRE: | |
1627 | case REGLST: | |
1628 | losing++; | |
1629 | break; | |
1630 | default: | |
1631 | break; | |
1632 | } | |
1633 | break; | |
1634 | ||
252b5132 RH |
1635 | case 'C': |
1636 | if (opP->mode != CONTROL || opP->reg != CCR) | |
1637 | losing++; | |
1638 | break; | |
1639 | ||
1640 | case 'd': | |
1641 | if (opP->mode != DISP | |
1642 | || opP->reg < ADDR0 | |
1643 | || opP->reg > ADDR7) | |
1644 | losing++; | |
1645 | break; | |
1646 | ||
1647 | case 'D': | |
1648 | if (opP->mode != DREG) | |
1649 | losing++; | |
1650 | break; | |
1651 | ||
6da466c7 ILT |
1652 | case 'E': |
1653 | if (opP->reg != ACC) | |
1654 | losing++; | |
1655 | break; | |
1656 | ||
fd99574b NC |
1657 | case 'e': |
1658 | if (opP->reg != ACC && opP->reg != ACC1 | |
1659 | && opP->reg != ACC2 && opP->reg != ACC3) | |
1660 | losing++; | |
1661 | break; | |
1662 | ||
252b5132 RH |
1663 | case 'F': |
1664 | if (opP->mode != FPREG) | |
1665 | losing++; | |
1666 | break; | |
1667 | ||
6da466c7 ILT |
1668 | case 'G': |
1669 | if (opP->reg != MACSR) | |
1670 | losing++; | |
1671 | break; | |
1672 | ||
fd99574b NC |
1673 | case 'g': |
1674 | if (opP->reg != ACCEXT01 && opP->reg != ACCEXT23) | |
1675 | losing++; | |
1676 | break; | |
1677 | ||
6da466c7 ILT |
1678 | case 'H': |
1679 | if (opP->reg != MASK) | |
1680 | losing++; | |
1681 | break; | |
1682 | ||
252b5132 RH |
1683 | case 'I': |
1684 | if (opP->mode != CONTROL | |
1685 | || opP->reg < COP0 | |
1686 | || opP->reg > COP7) | |
1687 | losing++; | |
1688 | break; | |
1689 | ||
fd99574b NC |
1690 | case 'i': |
1691 | if (opP->mode != LSH && opP->mode != RSH) | |
1692 | losing++; | |
1693 | break; | |
1694 | ||
252b5132 RH |
1695 | case 'J': |
1696 | if (opP->mode != CONTROL | |
1697 | || opP->reg < USP | |
1698 | || opP->reg > last_movec_reg) | |
1699 | losing++; | |
1700 | else | |
1701 | { | |
1702 | const enum m68k_register *rp; | |
1703 | for (rp = control_regs; *rp; rp++) | |
1704 | if (*rp == opP->reg) | |
1705 | break; | |
1706 | if (*rp == 0) | |
1707 | losing++; | |
1708 | } | |
1709 | break; | |
1710 | ||
1711 | case 'k': | |
1712 | if (opP->mode != IMMED) | |
1713 | losing++; | |
1714 | break; | |
1715 | ||
1716 | case 'l': | |
1717 | case 'L': | |
1718 | if (opP->mode == DREG | |
1719 | || opP->mode == AREG | |
1720 | || opP->mode == FPREG) | |
1721 | { | |
1722 | if (s[1] == '8') | |
1723 | losing++; | |
1724 | else | |
1725 | { | |
1726 | switch (opP->mode) | |
1727 | { | |
1728 | case DREG: | |
1729 | opP->mask = 1 << (opP->reg - DATA0); | |
1730 | break; | |
1731 | case AREG: | |
1732 | opP->mask = 1 << (opP->reg - ADDR0 + 8); | |
1733 | break; | |
1734 | case FPREG: | |
1735 | opP->mask = 1 << (opP->reg - FP0 + 16); | |
1736 | break; | |
1737 | default: | |
1738 | abort (); | |
1739 | } | |
1740 | opP->mode = REGLST; | |
1741 | } | |
1742 | } | |
1743 | else if (opP->mode == CONTROL) | |
1744 | { | |
1745 | if (s[1] != '8') | |
1746 | losing++; | |
1747 | else | |
1748 | { | |
1749 | switch (opP->reg) | |
1750 | { | |
1751 | case FPI: | |
1752 | opP->mask = 1 << 24; | |
1753 | break; | |
1754 | case FPS: | |
1755 | opP->mask = 1 << 25; | |
1756 | break; | |
1757 | case FPC: | |
1758 | opP->mask = 1 << 26; | |
1759 | break; | |
1760 | default: | |
1761 | losing++; | |
1762 | break; | |
1763 | } | |
1764 | opP->mode = REGLST; | |
1765 | } | |
1766 | } | |
1767 | else if (opP->mode != REGLST) | |
1768 | losing++; | |
1769 | else if (s[1] == '8' && (opP->mask & 0x0ffffff) != 0) | |
1770 | losing++; | |
1771 | else if (s[1] == '3' && (opP->mask & 0x7000000) != 0) | |
1772 | losing++; | |
1773 | break; | |
1774 | ||
1775 | case 'M': | |
1776 | if (opP->mode != IMMED) | |
1777 | losing++; | |
1778 | else if (opP->disp.exp.X_op != O_constant | |
1779 | || ! issbyte (opP->disp.exp.X_add_number)) | |
1780 | losing++; | |
1781 | else if (! m68k_quick | |
1782 | && instring[3] != 'q' | |
1783 | && instring[4] != 'q') | |
1784 | losing++; | |
1785 | break; | |
1786 | ||
1787 | case 'O': | |
1788 | if (opP->mode != DREG | |
1789 | && opP->mode != IMMED | |
1790 | && opP->mode != ABSL) | |
1791 | losing++; | |
1792 | break; | |
1793 | ||
1794 | case 'Q': | |
1795 | if (opP->mode != IMMED) | |
1796 | losing++; | |
1797 | else if (opP->disp.exp.X_op != O_constant | |
1798 | || opP->disp.exp.X_add_number < 1 | |
1799 | || opP->disp.exp.X_add_number > 8) | |
1800 | losing++; | |
1801 | else if (! m68k_quick | |
1802 | && (strncmp (instring, "add", 3) == 0 | |
1803 | || strncmp (instring, "sub", 3) == 0) | |
1804 | && instring[3] != 'q') | |
1805 | losing++; | |
1806 | break; | |
1807 | ||
1808 | case 'R': | |
1809 | if (opP->mode != DREG && opP->mode != AREG) | |
1810 | losing++; | |
1811 | break; | |
1812 | ||
1813 | case 'r': | |
1814 | if (opP->mode != AINDR | |
1815 | && (opP->mode != BASE | |
1816 | || (opP->reg != 0 | |
1817 | && opP->reg != ZADDR0) | |
1818 | || opP->disp.exp.X_op != O_absent | |
1819 | || ((opP->index.reg < DATA0 | |
1820 | || opP->index.reg > DATA7) | |
1821 | && (opP->index.reg < ADDR0 | |
1822 | || opP->index.reg > ADDR7)) | |
1823 | || opP->index.size != SIZE_UNSPEC | |
1824 | || opP->index.scale != 1)) | |
1825 | losing++; | |
1826 | break; | |
1827 | ||
1828 | case 's': | |
1829 | if (opP->mode != CONTROL | |
1830 | || ! (opP->reg == FPI | |
1831 | || opP->reg == FPS | |
1832 | || opP->reg == FPC)) | |
1833 | losing++; | |
1834 | break; | |
1835 | ||
1836 | case 'S': | |
1837 | if (opP->mode != CONTROL || opP->reg != SR) | |
1838 | losing++; | |
1839 | break; | |
1840 | ||
1841 | case 't': | |
1842 | if (opP->mode != IMMED) | |
1843 | losing++; | |
1844 | else if (opP->disp.exp.X_op != O_constant | |
1845 | || opP->disp.exp.X_add_number < 0 | |
1846 | || opP->disp.exp.X_add_number > 7) | |
1847 | losing++; | |
1848 | break; | |
1849 | ||
1850 | case 'U': | |
1851 | if (opP->mode != CONTROL || opP->reg != USP) | |
1852 | losing++; | |
1853 | break; | |
1854 | ||
3e602632 NC |
1855 | case 'x': |
1856 | if (opP->mode != IMMED) | |
1857 | losing++; | |
1858 | else if (opP->disp.exp.X_op != O_constant | |
1859 | || opP->disp.exp.X_add_number < -1 | |
1860 | || opP->disp.exp.X_add_number > 7 | |
1861 | || opP->disp.exp.X_add_number == 0) | |
1862 | losing++; | |
1863 | break; | |
1864 | ||
252b5132 RH |
1865 | /* JF these are out of order. We could put them |
1866 | in order if we were willing to put up with | |
1867 | bunches of #ifdef m68851s in the code. | |
1868 | ||
1869 | Don't forget that you need these operands | |
1870 | to use 68030 MMU instructions. */ | |
1871 | #ifndef NO_68851 | |
36759679 | 1872 | /* Memory addressing mode used by pflushr. */ |
252b5132 RH |
1873 | case '|': |
1874 | if (opP->mode == CONTROL | |
1875 | || opP->mode == FPREG | |
1876 | || opP->mode == DREG | |
1877 | || opP->mode == AREG | |
1878 | || opP->mode == REGLST) | |
1879 | losing++; | |
1880 | /* We should accept immediate operands, but they | |
1881 | supposedly have to be quad word, and we don't | |
1882 | handle that. I would like to see what a Motorola | |
1883 | assembler does before doing something here. */ | |
1884 | if (opP->mode == IMMED) | |
1885 | losing++; | |
1886 | break; | |
1887 | ||
1888 | case 'f': | |
1889 | if (opP->mode != CONTROL | |
1890 | || (opP->reg != SFC && opP->reg != DFC)) | |
1891 | losing++; | |
1892 | break; | |
1893 | ||
1894 | case '0': | |
1895 | if (opP->mode != CONTROL || opP->reg != TC) | |
1896 | losing++; | |
1897 | break; | |
1898 | ||
1899 | case '1': | |
1900 | if (opP->mode != CONTROL || opP->reg != AC) | |
1901 | losing++; | |
1902 | break; | |
1903 | ||
1904 | case '2': | |
1905 | if (opP->mode != CONTROL | |
1906 | || (opP->reg != CAL | |
1907 | && opP->reg != VAL | |
1908 | && opP->reg != SCC)) | |
1909 | losing++; | |
1910 | break; | |
1911 | ||
1912 | case 'V': | |
1913 | if (opP->mode != CONTROL | |
1914 | || opP->reg != VAL) | |
1915 | losing++; | |
1916 | break; | |
1917 | ||
1918 | case 'W': | |
1919 | if (opP->mode != CONTROL | |
1920 | || (opP->reg != DRP | |
1921 | && opP->reg != SRP | |
1922 | && opP->reg != CRP)) | |
1923 | losing++; | |
1924 | break; | |
1925 | ||
3e602632 NC |
1926 | case 'w': |
1927 | switch (opP->mode) | |
1928 | { | |
1929 | case IMMED: | |
1930 | case ABSL: | |
1931 | case AREG: | |
1932 | case DREG: | |
1933 | case FPREG: | |
1934 | case CONTROL: | |
1935 | case POST: | |
1936 | case PRE: | |
1937 | case REGLST: | |
1938 | losing++; | |
1939 | break; | |
1940 | default: | |
1941 | break; | |
1942 | } | |
1943 | break; | |
1944 | ||
252b5132 RH |
1945 | case 'X': |
1946 | if (opP->mode != CONTROL | |
1947 | || (!(opP->reg >= BAD && opP->reg <= BAD + 7) | |
1948 | && !(opP->reg >= BAC && opP->reg <= BAC + 7))) | |
1949 | losing++; | |
1950 | break; | |
1951 | ||
1952 | case 'Y': | |
1953 | if (opP->mode != CONTROL || opP->reg != PSR) | |
1954 | losing++; | |
1955 | break; | |
1956 | ||
1957 | case 'Z': | |
1958 | if (opP->mode != CONTROL || opP->reg != PCSR) | |
1959 | losing++; | |
1960 | break; | |
1961 | #endif | |
1962 | case 'c': | |
1963 | if (opP->mode != CONTROL | |
1964 | || (opP->reg != NC | |
1965 | && opP->reg != IC | |
1966 | && opP->reg != DC | |
1967 | && opP->reg != BC)) | |
36759679 | 1968 | losing++; |
252b5132 RH |
1969 | break; |
1970 | ||
1971 | case '_': | |
1972 | if (opP->mode != ABSL) | |
1973 | ++losing; | |
1974 | break; | |
1975 | ||
6da466c7 ILT |
1976 | case 'u': |
1977 | if (opP->reg < DATA0L || opP->reg > ADDR7U) | |
1978 | losing++; | |
1979 | /* FIXME: kludge instead of fixing parser: | |
1980 | upper/lower registers are *not* CONTROL | |
92774660 | 1981 | registers, but ordinary ones. */ |
6da466c7 ILT |
1982 | if ((opP->reg >= DATA0L && opP->reg <= DATA7L) |
1983 | || (opP->reg >= DATA0U && opP->reg <= DATA7U)) | |
1984 | opP->mode = DREG; | |
1985 | else | |
1986 | opP->mode = AREG; | |
1987 | break; | |
1988 | ||
3e602632 NC |
1989 | case 'y': |
1990 | if (!(opP->mode == AINDR | |
1991 | || (opP->mode == DISP && !(opP->reg == PC || | |
1992 | opP->reg == ZPC)))) | |
1993 | losing++; | |
1994 | break; | |
1995 | ||
1996 | case 'z': | |
1997 | if (!(opP->mode == AINDR || opP->mode == DISP)) | |
1998 | losing++; | |
1999 | break; | |
2000 | ||
252b5132 RH |
2001 | default: |
2002 | abort (); | |
36759679 | 2003 | } |
252b5132 RH |
2004 | |
2005 | if (losing) | |
2006 | break; | |
36759679 NC |
2007 | } |
2008 | } | |
252b5132 RH |
2009 | |
2010 | if (!losing) | |
36759679 | 2011 | break; |
252b5132 RH |
2012 | |
2013 | opcode = opcode->m_next; | |
2014 | ||
2015 | if (!opcode) | |
2016 | { | |
2017 | if (ok_arch | |
2018 | && !(ok_arch & current_architecture)) | |
2019 | { | |
2020 | char buf[200], *cp; | |
2021 | ||
6b6e92f4 NC |
2022 | strncpy (buf, |
2023 | _("invalid instruction for this architecture; needs "), sizeof (buf)); | |
252b5132 RH |
2024 | cp = buf + strlen (buf); |
2025 | switch (ok_arch) | |
2026 | { | |
6b6e92f4 NC |
2027 | case mcfisa_a: |
2028 | strncpy (cp, _("ColdFire ISA_A"), (sizeof (buf) - (cp - buf))); | |
2029 | cp += strlen (cp); | |
2030 | strncpy (cp, find_cf_chip (ok_arch), (sizeof (buf) - (cp - buf))); | |
2031 | cp += strlen (cp); | |
2032 | break; | |
2033 | case mcfhwdiv: | |
2034 | strncpy (cp, _("ColdFire hardware divide"), (sizeof (buf) - (cp - buf))); | |
2035 | cp += strlen (cp); | |
2036 | strncpy (cp, find_cf_chip (ok_arch), (sizeof (buf) - (cp - buf))); | |
2037 | cp += strlen (cp); | |
2038 | break; | |
2039 | case mcfisa_aa: | |
2040 | strncpy (cp, _("ColdFire ISA_A+"), (sizeof (buf) - (cp - buf))); | |
2041 | cp += strlen (cp); | |
2042 | strncpy (cp, find_cf_chip (ok_arch), (sizeof (buf) - (cp - buf))); | |
2043 | cp += strlen (cp); | |
2044 | break; | |
2045 | case mcfisa_b: | |
2046 | strncpy (cp, _("ColdFire ISA_B"), (sizeof (buf) - (cp - buf))); | |
2047 | cp += strlen (cp); | |
2048 | strncpy (cp, find_cf_chip (ok_arch), (sizeof (buf) - (cp - buf))); | |
2049 | cp += strlen (cp); | |
2050 | break; | |
3e602632 | 2051 | case cfloat: |
6b6e92f4 NC |
2052 | strncpy (cp, _("ColdFire fpu"), (sizeof (buf) - (cp - buf))); |
2053 | cp += strlen (cp); | |
2054 | strncpy (cp, find_cf_chip (ok_arch), (sizeof (buf) - (cp - buf))); | |
2055 | cp += strlen (cp); | |
3e602632 | 2056 | break; |
252b5132 RH |
2057 | case mfloat: |
2058 | strcpy (cp, _("fpu (68040, 68060 or 68881/68882)")); | |
2059 | break; | |
2060 | case mmmu: | |
2061 | strcpy (cp, _("mmu (68030 or 68851)")); | |
2062 | break; | |
2063 | case m68020up: | |
2064 | strcpy (cp, _("68020 or higher")); | |
2065 | break; | |
2066 | case m68000up: | |
2067 | strcpy (cp, _("68000 or higher")); | |
2068 | break; | |
2069 | case m68010up: | |
2070 | strcpy (cp, _("68010 or higher")); | |
2071 | break; | |
2072 | default: | |
2073 | { | |
2074 | int got_one = 0, idx; | |
6b6e92f4 NC |
2075 | |
2076 | for (idx = 0; idx < n_archs; idx++) | |
252b5132 RH |
2077 | { |
2078 | if ((archs[idx].arch & ok_arch) | |
2079 | && ! archs[idx].alias) | |
2080 | { | |
2081 | if (got_one) | |
2082 | { | |
2083 | strcpy (cp, " or "); | |
2084 | cp += strlen (cp); | |
2085 | } | |
2086 | got_one = 1; | |
2087 | strcpy (cp, archs[idx].name); | |
2088 | cp += strlen (cp); | |
2089 | } | |
2090 | } | |
2091 | } | |
2092 | } | |
2093 | cp = xmalloc (strlen (buf) + 1); | |
2094 | strcpy (cp, buf); | |
2095 | the_ins.error = cp; | |
2096 | } | |
2097 | else | |
2098 | the_ins.error = _("operands mismatch"); | |
2099 | return; | |
36759679 | 2100 | } |
252b5132 RH |
2101 | |
2102 | losing = 0; | |
2103 | } | |
2104 | ||
36759679 | 2105 | /* Now assemble it. */ |
252b5132 RH |
2106 | the_ins.args = opcode->m_operands; |
2107 | the_ins.numargs = opcode->m_opnum; | |
2108 | the_ins.numo = opcode->m_codenum; | |
2109 | the_ins.opcode[0] = getone (opcode); | |
2110 | the_ins.opcode[1] = gettwo (opcode); | |
2111 | ||
2112 | for (s = the_ins.args, opP = &the_ins.operands[0]; *s; s += 2, opP++) | |
2113 | { | |
2114 | /* This switch is a doozy. | |
2115 | Watch the first step; its a big one! */ | |
2116 | switch (s[0]) | |
2117 | { | |
2118 | ||
2119 | case '*': | |
2120 | case '~': | |
2121 | case '%': | |
2122 | case ';': | |
2123 | case '@': | |
2124 | case '!': | |
2125 | case '&': | |
2126 | case '$': | |
2127 | case '?': | |
2128 | case '/': | |
2129 | case '<': | |
2130 | case '>': | |
3e602632 | 2131 | case 'b': |
252b5132 RH |
2132 | case 'm': |
2133 | case 'n': | |
2134 | case 'o': | |
2135 | case 'p': | |
2136 | case 'q': | |
2137 | case 'v': | |
3e602632 NC |
2138 | case 'w': |
2139 | case 'y': | |
2140 | case 'z': | |
fd99574b | 2141 | case '4': |
252b5132 RH |
2142 | #ifndef NO_68851 |
2143 | case '|': | |
2144 | #endif | |
2145 | switch (opP->mode) | |
2146 | { | |
2147 | case IMMED: | |
2148 | tmpreg = 0x3c; /* 7.4 */ | |
2149 | if (strchr ("bwl", s[1])) | |
3e602632 | 2150 | nextword = get_num (&opP->disp, 90); |
252b5132 RH |
2151 | else |
2152 | nextword = get_num (&opP->disp, 0); | |
2153 | if (isvar (&opP->disp)) | |
2154 | add_fix (s[1], &opP->disp, 0, 0); | |
2155 | switch (s[1]) | |
2156 | { | |
2157 | case 'b': | |
2158 | if (!isbyte (nextword)) | |
2159 | opP->error = _("operand out of range"); | |
2160 | addword (nextword); | |
2161 | baseo = 0; | |
2162 | break; | |
2163 | case 'w': | |
2164 | if (!isword (nextword)) | |
2165 | opP->error = _("operand out of range"); | |
2166 | addword (nextword); | |
2167 | baseo = 0; | |
2168 | break; | |
2169 | case 'W': | |
2170 | if (!issword (nextword)) | |
2171 | opP->error = _("operand out of range"); | |
2172 | addword (nextword); | |
2173 | baseo = 0; | |
2174 | break; | |
2175 | case 'l': | |
2176 | addword (nextword >> 16); | |
2177 | addword (nextword); | |
2178 | baseo = 0; | |
2179 | break; | |
2180 | ||
2181 | case 'f': | |
2182 | baseo = 2; | |
2183 | outro = 8; | |
2184 | break; | |
2185 | case 'F': | |
2186 | baseo = 4; | |
2187 | outro = 11; | |
2188 | break; | |
2189 | case 'x': | |
2190 | baseo = 6; | |
2191 | outro = 15; | |
2192 | break; | |
2193 | case 'p': | |
2194 | baseo = 6; | |
2195 | outro = -1; | |
2196 | break; | |
2197 | default: | |
2198 | abort (); | |
2199 | } | |
2200 | if (!baseo) | |
2201 | break; | |
2202 | ||
36759679 | 2203 | /* We gotta put out some float. */ |
252b5132 RH |
2204 | if (op (&opP->disp) != O_big) |
2205 | { | |
2206 | valueT val; | |
2207 | int gencnt; | |
2208 | ||
2209 | /* Can other cases happen here? */ | |
2210 | if (op (&opP->disp) != O_constant) | |
2211 | abort (); | |
2212 | ||
2213 | val = (valueT) offs (&opP->disp); | |
2214 | gencnt = 0; | |
2215 | do | |
2216 | { | |
2217 | generic_bignum[gencnt] = (LITTLENUM_TYPE) val; | |
2218 | val >>= LITTLENUM_NUMBER_OF_BITS; | |
2219 | ++gencnt; | |
2220 | } | |
2221 | while (val != 0); | |
2222 | offs (&opP->disp) = gencnt; | |
2223 | } | |
2224 | if (offs (&opP->disp) > 0) | |
2225 | { | |
2226 | if (offs (&opP->disp) > baseo) | |
2227 | { | |
2228 | as_warn (_("Bignum too big for %c format; truncated"), | |
2229 | s[1]); | |
2230 | offs (&opP->disp) = baseo; | |
2231 | } | |
2232 | baseo -= offs (&opP->disp); | |
2233 | while (baseo--) | |
2234 | addword (0); | |
2235 | for (wordp = generic_bignum + offs (&opP->disp) - 1; | |
2236 | offs (&opP->disp)--; | |
2237 | --wordp) | |
2238 | addword (*wordp); | |
2239 | break; | |
2240 | } | |
2241 | gen_to_words (words, baseo, (long) outro); | |
2242 | for (wordp = words; baseo--; wordp++) | |
2243 | addword (*wordp); | |
2244 | break; | |
2245 | case DREG: | |
2246 | tmpreg = opP->reg - DATA; /* 0.dreg */ | |
2247 | break; | |
2248 | case AREG: | |
2249 | tmpreg = 0x08 + opP->reg - ADDR; /* 1.areg */ | |
2250 | break; | |
2251 | case AINDR: | |
2252 | tmpreg = 0x10 + opP->reg - ADDR; /* 2.areg */ | |
2253 | break; | |
2254 | case ADEC: | |
2255 | tmpreg = 0x20 + opP->reg - ADDR; /* 4.areg */ | |
2256 | break; | |
2257 | case AINC: | |
2258 | tmpreg = 0x18 + opP->reg - ADDR; /* 3.areg */ | |
2259 | break; | |
2260 | case DISP: | |
2261 | ||
3e602632 | 2262 | nextword = get_num (&opP->disp, 90); |
252b5132 | 2263 | |
580b9172 NC |
2264 | /* Convert mode 5 addressing with a zero offset into |
2265 | mode 2 addressing to reduce the instruction size by a | |
2266 | word. */ | |
2267 | if (! isvar (&opP->disp) | |
2268 | && (nextword == 0) | |
2269 | && (opP->disp.size == SIZE_UNSPEC) | |
2270 | && (opP->reg >= ADDR0) | |
2271 | && (opP->reg <= ADDR7)) | |
2272 | { | |
2273 | tmpreg = 0x10 + opP->reg - ADDR; /* 2.areg */ | |
2274 | break; | |
2275 | } | |
2276 | ||
252b5132 RH |
2277 | if (opP->reg == PC |
2278 | && ! isvar (&opP->disp) | |
2279 | && m68k_abspcadd) | |
2280 | { | |
2281 | opP->disp.exp.X_op = O_symbol; | |
2282 | #ifndef BFD_ASSEMBLER | |
2283 | opP->disp.exp.X_add_symbol = &abs_symbol; | |
2284 | #else | |
2285 | opP->disp.exp.X_add_symbol = | |
2286 | section_symbol (absolute_section); | |
2287 | #endif | |
2288 | } | |
2289 | ||
36759679 | 2290 | /* Force into index mode. Hope this works. */ |
252b5132 RH |
2291 | |
2292 | /* We do the first bit for 32-bit displacements, and the | |
2293 | second bit for 16 bit ones. It is possible that we | |
2294 | should make the default be WORD instead of LONG, but | |
2295 | I think that'd break GCC, so we put up with a little | |
2296 | inefficiency for the sake of working output. */ | |
2297 | ||
2298 | if (!issword (nextword) | |
2299 | || (isvar (&opP->disp) | |
2300 | && ((opP->disp.size == SIZE_UNSPEC | |
2301 | && flag_short_refs == 0 | |
2302 | && cpu_of_arch (current_architecture) >= m68020 | |
6da466c7 | 2303 | && ! arch_coldfire_p (current_architecture)) |
252b5132 RH |
2304 | || opP->disp.size == SIZE_LONG))) |
2305 | { | |
2306 | if (cpu_of_arch (current_architecture) < m68020 | |
6da466c7 | 2307 | || arch_coldfire_p (current_architecture)) |
252b5132 RH |
2308 | opP->error = |
2309 | _("displacement too large for this architecture; needs 68020 or higher"); | |
2310 | if (opP->reg == PC) | |
2311 | tmpreg = 0x3B; /* 7.3 */ | |
2312 | else | |
2313 | tmpreg = 0x30 + opP->reg - ADDR; /* 6.areg */ | |
2314 | if (isvar (&opP->disp)) | |
2315 | { | |
2316 | if (opP->reg == PC) | |
2317 | { | |
2318 | if (opP->disp.size == SIZE_LONG | |
2319 | #ifdef OBJ_ELF | |
2320 | /* If the displacement needs pic | |
2321 | relocation it cannot be relaxed. */ | |
2322 | || opP->disp.pic_reloc != pic_none | |
2323 | #endif | |
2324 | ) | |
2325 | { | |
2326 | addword (0x0170); | |
2327 | add_fix ('l', &opP->disp, 1, 2); | |
2328 | } | |
2329 | else | |
2330 | { | |
2331 | add_frag (adds (&opP->disp), | |
2332 | offs (&opP->disp), | |
151337e8 | 2333 | TAB (PCREL1632, SZ_UNDEF)); |
252b5132 RH |
2334 | break; |
2335 | } | |
2336 | } | |
2337 | else | |
2338 | { | |
2339 | addword (0x0170); | |
2340 | add_fix ('l', &opP->disp, 0, 0); | |
2341 | } | |
2342 | } | |
2343 | else | |
2344 | addword (0x0170); | |
2345 | addword (nextword >> 16); | |
2346 | } | |
2347 | else | |
2348 | { | |
2349 | if (opP->reg == PC) | |
2350 | tmpreg = 0x3A; /* 7.2 */ | |
2351 | else | |
2352 | tmpreg = 0x28 + opP->reg - ADDR; /* 5.areg */ | |
2353 | ||
2354 | if (isvar (&opP->disp)) | |
2355 | { | |
2356 | if (opP->reg == PC) | |
2357 | { | |
2358 | add_fix ('w', &opP->disp, 1, 0); | |
2359 | } | |
2360 | else | |
2361 | add_fix ('w', &opP->disp, 0, 0); | |
2362 | } | |
2363 | } | |
2364 | addword (nextword); | |
2365 | break; | |
2366 | ||
2367 | case POST: | |
2368 | case PRE: | |
2369 | case BASE: | |
2370 | nextword = 0; | |
3e602632 | 2371 | baseo = get_num (&opP->disp, 90); |
252b5132 | 2372 | if (opP->mode == POST || opP->mode == PRE) |
3e602632 | 2373 | outro = get_num (&opP->odisp, 90); |
252b5132 RH |
2374 | /* Figure out the `addressing mode'. |
2375 | Also turn on the BASE_DISABLE bit, if needed. */ | |
2376 | if (opP->reg == PC || opP->reg == ZPC) | |
2377 | { | |
2378 | tmpreg = 0x3b; /* 7.3 */ | |
2379 | if (opP->reg == ZPC) | |
2380 | nextword |= 0x80; | |
2381 | } | |
2382 | else if (opP->reg == 0) | |
2383 | { | |
2384 | nextword |= 0x80; | |
2385 | tmpreg = 0x30; /* 6.garbage */ | |
2386 | } | |
2387 | else if (opP->reg >= ZADDR0 && opP->reg <= ZADDR7) | |
2388 | { | |
2389 | nextword |= 0x80; | |
2390 | tmpreg = 0x30 + opP->reg - ZADDR0; | |
2391 | } | |
2392 | else | |
2393 | tmpreg = 0x30 + opP->reg - ADDR; /* 6.areg */ | |
2394 | ||
2395 | siz1 = opP->disp.size; | |
2396 | if (opP->mode == POST || opP->mode == PRE) | |
2397 | siz2 = opP->odisp.size; | |
2398 | else | |
2399 | siz2 = SIZE_UNSPEC; | |
2400 | ||
36759679 | 2401 | /* Index register stuff. */ |
252b5132 RH |
2402 | if (opP->index.reg != 0 |
2403 | && opP->index.reg >= DATA | |
2404 | && opP->index.reg <= ADDR7) | |
2405 | { | |
2406 | nextword |= (opP->index.reg - DATA) << 12; | |
2407 | ||
2408 | if (opP->index.size == SIZE_LONG | |
2409 | || (opP->index.size == SIZE_UNSPEC | |
2410 | && m68k_index_width_default == SIZE_LONG)) | |
2411 | nextword |= 0x800; | |
2412 | ||
92774660 | 2413 | if ((opP->index.scale != 1 |
252b5132 | 2414 | && cpu_of_arch (current_architecture) < m68020) |
92774660 | 2415 | || (opP->index.scale == 8 |
3e602632 | 2416 | && (arch_coldfire_p (current_architecture) |
6b6e92f4 | 2417 | && !arch_coldfire_fpu (current_architecture)))) |
252b5132 RH |
2418 | { |
2419 | opP->error = | |
2420 | _("scale factor invalid on this architecture; needs cpu32 or 68020 or higher"); | |
2421 | } | |
2422 | ||
6da466c7 ILT |
2423 | if (arch_coldfire_p (current_architecture) |
2424 | && opP->index.size == SIZE_WORD) | |
2425 | opP->error = _("invalid index size for coldfire"); | |
2426 | ||
252b5132 RH |
2427 | switch (opP->index.scale) |
2428 | { | |
2429 | case 1: | |
2430 | break; | |
2431 | case 2: | |
2432 | nextword |= 0x200; | |
2433 | break; | |
2434 | case 4: | |
2435 | nextword |= 0x400; | |
2436 | break; | |
2437 | case 8: | |
2438 | nextword |= 0x600; | |
2439 | break; | |
2440 | default: | |
2441 | abort (); | |
2442 | } | |
2443 | /* IF its simple, | |
2444 | GET US OUT OF HERE! */ | |
2445 | ||
2446 | /* Must be INDEX, with an index register. Address | |
2447 | register cannot be ZERO-PC, and either :b was | |
2448 | forced, or we know it will fit. For a 68000 or | |
2449 | 68010, force this mode anyways, because the | |
2450 | larger modes aren't supported. */ | |
2451 | if (opP->mode == BASE | |
2452 | && ((opP->reg >= ADDR0 | |
2453 | && opP->reg <= ADDR7) | |
2454 | || opP->reg == PC)) | |
2455 | { | |
2456 | if (siz1 == SIZE_BYTE | |
2457 | || cpu_of_arch (current_architecture) < m68020 | |
6da466c7 | 2458 | || arch_coldfire_p (current_architecture) |
252b5132 RH |
2459 | || (siz1 == SIZE_UNSPEC |
2460 | && ! isvar (&opP->disp) | |
2461 | && issbyte (baseo))) | |
2462 | { | |
2463 | nextword += baseo & 0xff; | |
2464 | addword (nextword); | |
2465 | if (isvar (&opP->disp)) | |
2466 | { | |
2467 | /* Do a byte relocation. If it doesn't | |
2468 | fit (possible on m68000) let the | |
2469 | fixup processing complain later. */ | |
2470 | if (opP->reg == PC) | |
2471 | add_fix ('B', &opP->disp, 1, 1); | |
2472 | else | |
2473 | add_fix ('B', &opP->disp, 0, 0); | |
2474 | } | |
2475 | else if (siz1 != SIZE_BYTE) | |
2476 | { | |
2477 | if (siz1 != SIZE_UNSPEC) | |
2478 | as_warn (_("Forcing byte displacement")); | |
2479 | if (! issbyte (baseo)) | |
2480 | opP->error = _("byte displacement out of range"); | |
2481 | } | |
2482 | ||
2483 | break; | |
2484 | } | |
2485 | else if (siz1 == SIZE_UNSPEC | |
2486 | && opP->reg == PC | |
2487 | && isvar (&opP->disp) | |
2488 | && subs (&opP->disp) == NULL | |
2489 | #ifdef OBJ_ELF | |
2490 | /* If the displacement needs pic | |
2491 | relocation it cannot be relaxed. */ | |
2492 | && opP->disp.pic_reloc == pic_none | |
2493 | #endif | |
2494 | ) | |
2495 | { | |
2496 | /* The code in md_convert_frag_1 needs to be | |
2497 | able to adjust nextword. Call frag_grow | |
2498 | to ensure that we have enough space in | |
2499 | the frag obstack to make all the bytes | |
2500 | contiguous. */ | |
2501 | frag_grow (14); | |
8a104df9 KH |
2502 | nextword += baseo & 0xff; |
2503 | addword (nextword); | |
2504 | add_frag (adds (&opP->disp), offs (&opP->disp), | |
2505 | TAB (PCINDEX, SZ_UNDEF)); | |
252b5132 RH |
2506 | |
2507 | break; | |
8a104df9 | 2508 | } |
252b5132 RH |
2509 | } |
2510 | } | |
2511 | else | |
2512 | { | |
36759679 | 2513 | nextword |= 0x40; /* No index reg. */ |
252b5132 RH |
2514 | if (opP->index.reg >= ZDATA0 |
2515 | && opP->index.reg <= ZDATA7) | |
2516 | nextword |= (opP->index.reg - ZDATA0) << 12; | |
2517 | else if (opP->index.reg >= ZADDR0 | |
2518 | || opP->index.reg <= ZADDR7) | |
2519 | nextword |= (opP->index.reg - ZADDR0 + 8) << 12; | |
2520 | } | |
2521 | ||
2522 | /* It isn't simple. */ | |
2523 | ||
2524 | if (cpu_of_arch (current_architecture) < m68020 | |
6da466c7 | 2525 | || arch_coldfire_p (current_architecture)) |
252b5132 RH |
2526 | opP->error = |
2527 | _("invalid operand mode for this architecture; needs 68020 or higher"); | |
2528 | ||
2529 | nextword |= 0x100; | |
2530 | /* If the guy specified a width, we assume that it is | |
2531 | wide enough. Maybe it isn't. If so, we lose. */ | |
2532 | switch (siz1) | |
2533 | { | |
2534 | case SIZE_UNSPEC: | |
2535 | if (isvar (&opP->disp) | |
2536 | ? m68k_rel32 | |
2537 | : ! issword (baseo)) | |
2538 | { | |
2539 | siz1 = SIZE_LONG; | |
2540 | nextword |= 0x30; | |
2541 | } | |
2542 | else if (! isvar (&opP->disp) && baseo == 0) | |
2543 | nextword |= 0x10; | |
2544 | else | |
2545 | { | |
2546 | nextword |= 0x20; | |
2547 | siz1 = SIZE_WORD; | |
2548 | } | |
2549 | break; | |
2550 | case SIZE_BYTE: | |
2551 | as_warn (_(":b not permitted; defaulting to :w")); | |
2552 | /* Fall through. */ | |
2553 | case SIZE_WORD: | |
2554 | nextword |= 0x20; | |
2555 | break; | |
2556 | case SIZE_LONG: | |
2557 | nextword |= 0x30; | |
2558 | break; | |
2559 | } | |
2560 | ||
67c1ffbe | 2561 | /* Figure out inner displacement stuff. */ |
252b5132 RH |
2562 | if (opP->mode == POST || opP->mode == PRE) |
2563 | { | |
2564 | if (cpu_of_arch (current_architecture) & cpu32) | |
2565 | opP->error = _("invalid operand mode for this architecture; needs 68020 or higher"); | |
2566 | switch (siz2) | |
2567 | { | |
2568 | case SIZE_UNSPEC: | |
2569 | if (isvar (&opP->odisp) | |
2570 | ? m68k_rel32 | |
2571 | : ! issword (outro)) | |
2572 | { | |
2573 | siz2 = SIZE_LONG; | |
2574 | nextword |= 0x3; | |
2575 | } | |
2576 | else if (! isvar (&opP->odisp) && outro == 0) | |
2577 | nextword |= 0x1; | |
2578 | else | |
2579 | { | |
2580 | nextword |= 0x2; | |
2581 | siz2 = SIZE_WORD; | |
2582 | } | |
2583 | break; | |
2584 | case 1: | |
2585 | as_warn (_(":b not permitted; defaulting to :w")); | |
2586 | /* Fall through. */ | |
2587 | case 2: | |
2588 | nextword |= 0x2; | |
2589 | break; | |
2590 | case 3: | |
2591 | nextword |= 0x3; | |
2592 | break; | |
2593 | } | |
2594 | if (opP->mode == POST | |
2595 | && (nextword & 0x40) == 0) | |
2596 | nextword |= 0x04; | |
2597 | } | |
2598 | addword (nextword); | |
2599 | ||
2600 | if (siz1 != SIZE_UNSPEC && isvar (&opP->disp)) | |
2601 | { | |
2602 | if (opP->reg == PC || opP->reg == ZPC) | |
2603 | add_fix (siz1 == SIZE_LONG ? 'l' : 'w', &opP->disp, 1, 2); | |
2604 | else | |
2605 | add_fix (siz1 == SIZE_LONG ? 'l' : 'w', &opP->disp, 0, 0); | |
2606 | } | |
2607 | if (siz1 == SIZE_LONG) | |
2608 | addword (baseo >> 16); | |
2609 | if (siz1 != SIZE_UNSPEC) | |
2610 | addword (baseo); | |
2611 | ||
2612 | if (siz2 != SIZE_UNSPEC && isvar (&opP->odisp)) | |
2613 | add_fix (siz2 == SIZE_LONG ? 'l' : 'w', &opP->odisp, 0, 0); | |
2614 | if (siz2 == SIZE_LONG) | |
2615 | addword (outro >> 16); | |
2616 | if (siz2 != SIZE_UNSPEC) | |
2617 | addword (outro); | |
2618 | ||
2619 | break; | |
2620 | ||
2621 | case ABSL: | |
3e602632 | 2622 | nextword = get_num (&opP->disp, 90); |
252b5132 RH |
2623 | switch (opP->disp.size) |
2624 | { | |
2625 | default: | |
2626 | abort (); | |
2627 | case SIZE_UNSPEC: | |
2628 | if (!isvar (&opP->disp) && issword (offs (&opP->disp))) | |
2629 | { | |
2630 | tmpreg = 0x38; /* 7.0 */ | |
2631 | addword (nextword); | |
2632 | break; | |
2633 | } | |
252b5132 RH |
2634 | if (isvar (&opP->disp) |
2635 | && !subs (&opP->disp) | |
2636 | && adds (&opP->disp) | |
2637 | #ifdef OBJ_ELF | |
2638 | /* If the displacement needs pic relocation it | |
2639 | cannot be relaxed. */ | |
2640 | && opP->disp.pic_reloc == pic_none | |
2641 | #endif | |
252b5132 RH |
2642 | && !flag_long_jumps |
2643 | && !strchr ("~%&$?", s[0])) | |
2644 | { | |
2645 | tmpreg = 0x3A; /* 7.2 */ | |
2646 | add_frag (adds (&opP->disp), | |
2647 | offs (&opP->disp), | |
151337e8 | 2648 | TAB (ABSTOPCREL, SZ_UNDEF)); |
252b5132 RH |
2649 | break; |
2650 | } | |
36759679 | 2651 | /* Fall through into long. */ |
252b5132 RH |
2652 | case SIZE_LONG: |
2653 | if (isvar (&opP->disp)) | |
2654 | add_fix ('l', &opP->disp, 0, 0); | |
2655 | ||
2656 | tmpreg = 0x39;/* 7.1 mode */ | |
2657 | addword (nextword >> 16); | |
2658 | addword (nextword); | |
2659 | break; | |
2660 | ||
2661 | case SIZE_BYTE: | |
2662 | as_bad (_("unsupported byte value; use a different suffix")); | |
2663 | /* Fall through. */ | |
36759679 NC |
2664 | |
2665 | case SIZE_WORD: | |
252b5132 RH |
2666 | if (isvar (&opP->disp)) |
2667 | add_fix ('w', &opP->disp, 0, 0); | |
2668 | ||
2669 | tmpreg = 0x38;/* 7.0 mode */ | |
2670 | addword (nextword); | |
2671 | break; | |
2672 | } | |
2673 | break; | |
2674 | case CONTROL: | |
2675 | case FPREG: | |
2676 | default: | |
2677 | as_bad (_("unknown/incorrect operand")); | |
bc805888 | 2678 | /* abort (); */ |
252b5132 | 2679 | } |
fd99574b NC |
2680 | |
2681 | /* If s[0] is '4', then this is for the mac instructions | |
2682 | that can have a trailing_ampersand set. If so, set 0x100 | |
2683 | bit on tmpreg so install_gen_operand can check for it and | |
2684 | set the appropriate bit (word2, bit 5). */ | |
2685 | if (s[0] == '4') | |
2686 | { | |
2687 | if (opP->trailing_ampersand) | |
2688 | tmpreg |= 0x100; | |
2689 | } | |
252b5132 RH |
2690 | install_gen_operand (s[1], tmpreg); |
2691 | break; | |
2692 | ||
2693 | case '#': | |
2694 | case '^': | |
2695 | switch (s[1]) | |
2696 | { /* JF: I hate floating point! */ | |
2697 | case 'j': | |
2698 | tmpreg = 70; | |
2699 | break; | |
2700 | case '8': | |
2701 | tmpreg = 20; | |
2702 | break; | |
2703 | case 'C': | |
2704 | tmpreg = 50; | |
2705 | break; | |
2706 | case '3': | |
2707 | default: | |
3e602632 | 2708 | tmpreg = 90; |
252b5132 RH |
2709 | break; |
2710 | } | |
2711 | tmpreg = get_num (&opP->disp, tmpreg); | |
2712 | if (isvar (&opP->disp)) | |
2713 | add_fix (s[1], &opP->disp, 0, 0); | |
2714 | switch (s[1]) | |
2715 | { | |
2716 | case 'b': /* Danger: These do no check for | |
2717 | certain types of overflow. | |
2718 | user beware! */ | |
2719 | if (!isbyte (tmpreg)) | |
2720 | opP->error = _("out of range"); | |
2721 | insop (tmpreg, opcode); | |
2722 | if (isvar (&opP->disp)) | |
2723 | the_ins.reloc[the_ins.nrel - 1].n = | |
2724 | (opcode->m_codenum) * 2 + 1; | |
2725 | break; | |
2726 | case 'B': | |
2727 | if (!issbyte (tmpreg)) | |
2728 | opP->error = _("out of range"); | |
2729 | the_ins.opcode[the_ins.numo - 1] |= tmpreg & 0xff; | |
2730 | if (isvar (&opP->disp)) | |
2731 | the_ins.reloc[the_ins.nrel - 1].n = opcode->m_codenum * 2 - 1; | |
2732 | break; | |
2733 | case 'w': | |
2734 | if (!isword (tmpreg)) | |
2735 | opP->error = _("out of range"); | |
2736 | insop (tmpreg, opcode); | |
2737 | if (isvar (&opP->disp)) | |
2738 | the_ins.reloc[the_ins.nrel - 1].n = (opcode->m_codenum) * 2; | |
2739 | break; | |
2740 | case 'W': | |
2741 | if (!issword (tmpreg)) | |
2742 | opP->error = _("out of range"); | |
2743 | insop (tmpreg, opcode); | |
2744 | if (isvar (&opP->disp)) | |
2745 | the_ins.reloc[the_ins.nrel - 1].n = (opcode->m_codenum) * 2; | |
2746 | break; | |
2747 | case 'l': | |
2748 | /* Because of the way insop works, we put these two out | |
2749 | backwards. */ | |
2750 | insop (tmpreg, opcode); | |
2751 | insop (tmpreg >> 16, opcode); | |
2752 | if (isvar (&opP->disp)) | |
2753 | the_ins.reloc[the_ins.nrel - 1].n = (opcode->m_codenum) * 2; | |
2754 | break; | |
2755 | case '3': | |
2756 | tmpreg &= 0xFF; | |
2757 | case '8': | |
2758 | case 'C': | |
2759 | case 'j': | |
2760 | install_operand (s[1], tmpreg); | |
2761 | break; | |
2762 | default: | |
2763 | abort (); | |
2764 | } | |
2765 | break; | |
2766 | ||
2767 | case '+': | |
2768 | case '-': | |
2769 | case 'A': | |
2770 | case 'a': | |
2771 | install_operand (s[1], opP->reg - ADDR); | |
2772 | break; | |
2773 | ||
2774 | case 'B': | |
3e602632 | 2775 | tmpreg = get_num (&opP->disp, 90); |
252b5132 RH |
2776 | switch (s[1]) |
2777 | { | |
2778 | case 'B': | |
8390138c | 2779 | add_fix ('B', &opP->disp, 1, -1); |
252b5132 RH |
2780 | break; |
2781 | case 'W': | |
2782 | add_fix ('w', &opP->disp, 1, 0); | |
2783 | addword (0); | |
2784 | break; | |
2785 | case 'L': | |
2786 | long_branch: | |
151337e8 | 2787 | if (! HAVE_LONG_BRANCH (current_architecture)) |
81d4177b | 2788 | as_warn (_("Can't use long branches on 68000/68010/5200")); |
151337e8 | 2789 | the_ins.opcode[0] |= 0xff; |
252b5132 RH |
2790 | add_fix ('l', &opP->disp, 1, 0); |
2791 | addword (0); | |
2792 | addword (0); | |
2793 | break; | |
2794 | case 'g': | |
36759679 | 2795 | if (subs (&opP->disp)) /* We can't relax it. */ |
252b5132 RH |
2796 | goto long_branch; |
2797 | ||
2798 | #ifdef OBJ_ELF | |
2799 | /* If the displacement needs pic relocation it cannot be | |
2800 | relaxed. */ | |
2801 | if (opP->disp.pic_reloc != pic_none) | |
2802 | goto long_branch; | |
2803 | #endif | |
252b5132 | 2804 | /* This could either be a symbol, or an absolute |
151337e8 NC |
2805 | address. If it's an absolute address, turn it into |
2806 | an absolute jump right here and keep it out of the | |
2807 | relaxer. */ | |
2808 | if (adds (&opP->disp) == 0) | |
2809 | { | |
2810 | if (the_ins.opcode[0] == 0x6000) /* jbra */ | |
18566f55 | 2811 | the_ins.opcode[0] = 0x4EF9; |
151337e8 | 2812 | else if (the_ins.opcode[0] == 0x6100) /* jbsr */ |
18566f55 | 2813 | the_ins.opcode[0] = 0x4EB9; |
151337e8 NC |
2814 | else /* jCC */ |
2815 | { | |
2816 | the_ins.opcode[0] ^= 0x0100; | |
2817 | the_ins.opcode[0] |= 0x0006; | |
18566f55 | 2818 | addword (0x4EF9); |
151337e8 NC |
2819 | } |
2820 | add_fix ('l', &opP->disp, 0, 0); | |
2821 | addword (0); | |
2822 | addword (0); | |
2823 | break; | |
2824 | } | |
2825 | ||
2826 | /* Now we know it's going into the relaxer. Now figure | |
2827 | out which mode. We try in this order of preference: | |
2828 | long branch, absolute jump, byte/word branches only. */ | |
2829 | if (HAVE_LONG_BRANCH (current_architecture)) | |
252b5132 | 2830 | add_frag (adds (&opP->disp), offs (&opP->disp), |
151337e8 NC |
2831 | TAB (BRANCHBWL, SZ_UNDEF)); |
2832 | else if (! flag_keep_pcrel) | |
2833 | { | |
2834 | if ((the_ins.opcode[0] == 0x6000) | |
2835 | || (the_ins.opcode[0] == 0x6100)) | |
2836 | add_frag (adds (&opP->disp), offs (&opP->disp), | |
2837 | TAB (BRABSJUNC, SZ_UNDEF)); | |
2838 | else | |
2839 | add_frag (adds (&opP->disp), offs (&opP->disp), | |
2840 | TAB (BRABSJCOND, SZ_UNDEF)); | |
2841 | } | |
252b5132 RH |
2842 | else |
2843 | add_frag (adds (&opP->disp), offs (&opP->disp), | |
151337e8 | 2844 | TAB (BRANCHBW, SZ_UNDEF)); |
252b5132 RH |
2845 | break; |
2846 | case 'w': | |
2847 | if (isvar (&opP->disp)) | |
2848 | { | |
151337e8 NC |
2849 | /* Check for DBcc instructions. We can relax them, |
2850 | but only if we have long branches and/or absolute | |
2851 | jumps. */ | |
2852 | if (((the_ins.opcode[0] & 0xf0f8) == 0x50c8) | |
2853 | && (HAVE_LONG_BRANCH (current_architecture) | |
2854 | || (! flag_keep_pcrel))) | |
252b5132 | 2855 | { |
151337e8 NC |
2856 | if (HAVE_LONG_BRANCH (current_architecture)) |
2857 | add_frag (adds (&opP->disp), offs (&opP->disp), | |
2858 | TAB (DBCCLBR, SZ_UNDEF)); | |
2859 | else | |
2860 | add_frag (adds (&opP->disp), offs (&opP->disp), | |
2861 | TAB (DBCCABSJ, SZ_UNDEF)); | |
252b5132 RH |
2862 | break; |
2863 | } | |
252b5132 RH |
2864 | add_fix ('w', &opP->disp, 1, 0); |
2865 | } | |
2866 | addword (0); | |
2867 | break; | |
36759679 | 2868 | case 'C': /* Fixed size LONG coproc branches. */ |
252b5132 RH |
2869 | add_fix ('l', &opP->disp, 1, 0); |
2870 | addword (0); | |
2871 | addword (0); | |
2872 | break; | |
36759679 | 2873 | case 'c': /* Var size Coprocesssor branches. */ |
151337e8 | 2874 | if (subs (&opP->disp) || (adds (&opP->disp) == 0)) |
252b5132 | 2875 | { |
252b5132 RH |
2876 | the_ins.opcode[the_ins.numo - 1] |= 0x40; |
2877 | add_fix ('l', &opP->disp, 1, 0); | |
2878 | addword (0); | |
2879 | addword (0); | |
2880 | } | |
151337e8 NC |
2881 | else |
2882 | add_frag (adds (&opP->disp), offs (&opP->disp), | |
2883 | TAB (FBRANCH, SZ_UNDEF)); | |
252b5132 RH |
2884 | break; |
2885 | default: | |
2886 | abort (); | |
2887 | } | |
2888 | break; | |
2889 | ||
36759679 | 2890 | case 'C': /* Ignore it. */ |
252b5132 RH |
2891 | break; |
2892 | ||
36759679 | 2893 | case 'd': /* JF this is a kludge. */ |
252b5132 | 2894 | install_operand ('s', opP->reg - ADDR); |
3e602632 | 2895 | tmpreg = get_num (&opP->disp, 90); |
252b5132 RH |
2896 | if (!issword (tmpreg)) |
2897 | { | |
2898 | as_warn (_("Expression out of range, using 0")); | |
2899 | tmpreg = 0; | |
2900 | } | |
2901 | addword (tmpreg); | |
2902 | break; | |
2903 | ||
2904 | case 'D': | |
2905 | install_operand (s[1], opP->reg - DATA); | |
2906 | break; | |
2907 | ||
fd99574b NC |
2908 | case 'e': /* EMAC ACCx, reg/reg. */ |
2909 | install_operand (s[1], opP->reg - ACC); | |
2910 | break; | |
2911 | ||
36759679 | 2912 | case 'E': /* Ignore it. */ |
6da466c7 ILT |
2913 | break; |
2914 | ||
252b5132 RH |
2915 | case 'F': |
2916 | install_operand (s[1], opP->reg - FP0); | |
2917 | break; | |
2918 | ||
fd99574b NC |
2919 | case 'g': /* EMAC ACCEXTx. */ |
2920 | install_operand (s[1], opP->reg - ACCEXT01); | |
2921 | break; | |
2922 | ||
36759679 | 2923 | case 'G': /* Ignore it. */ |
6da466c7 ILT |
2924 | case 'H': |
2925 | break; | |
2926 | ||
252b5132 RH |
2927 | case 'I': |
2928 | tmpreg = opP->reg - COP0; | |
2929 | install_operand (s[1], tmpreg); | |
2930 | break; | |
2931 | ||
fd99574b NC |
2932 | case 'i': /* MAC/EMAC scale factor. */ |
2933 | install_operand (s[1], opP->mode == LSH ? 0x1 : 0x3); | |
2934 | break; | |
2935 | ||
36759679 | 2936 | case 'J': /* JF foo. */ |
252b5132 RH |
2937 | switch (opP->reg) |
2938 | { | |
2939 | case SFC: | |
2940 | tmpreg = 0x000; | |
2941 | break; | |
2942 | case DFC: | |
2943 | tmpreg = 0x001; | |
2944 | break; | |
2945 | case CACR: | |
2946 | tmpreg = 0x002; | |
2947 | break; | |
2948 | case TC: | |
2949 | tmpreg = 0x003; | |
2950 | break; | |
3e602632 | 2951 | case ACR0: |
252b5132 RH |
2952 | case ITT0: |
2953 | tmpreg = 0x004; | |
2954 | break; | |
3e602632 | 2955 | case ACR1: |
252b5132 RH |
2956 | case ITT1: |
2957 | tmpreg = 0x005; | |
2958 | break; | |
3e602632 | 2959 | case ACR2: |
252b5132 RH |
2960 | case DTT0: |
2961 | tmpreg = 0x006; | |
2962 | break; | |
3e602632 | 2963 | case ACR3: |
252b5132 RH |
2964 | case DTT1: |
2965 | tmpreg = 0x007; | |
2966 | break; | |
2967 | case BUSCR: | |
2968 | tmpreg = 0x008; | |
2969 | break; | |
2970 | ||
2971 | case USP: | |
2972 | tmpreg = 0x800; | |
2973 | break; | |
2974 | case VBR: | |
2975 | tmpreg = 0x801; | |
2976 | break; | |
2977 | case CAAR: | |
2978 | tmpreg = 0x802; | |
2979 | break; | |
2980 | case MSP: | |
2981 | tmpreg = 0x803; | |
2982 | break; | |
2983 | case ISP: | |
2984 | tmpreg = 0x804; | |
2985 | break; | |
2986 | case MMUSR: | |
2987 | tmpreg = 0x805; | |
2988 | break; | |
2989 | case URP: | |
2990 | tmpreg = 0x806; | |
2991 | break; | |
2992 | case SRP: | |
2993 | tmpreg = 0x807; | |
2994 | break; | |
2995 | case PCR: | |
2996 | tmpreg = 0x808; | |
2997 | break; | |
2998 | case ROMBAR: | |
2999 | tmpreg = 0xC00; | |
3000 | break; | |
3e602632 NC |
3001 | case ROMBAR1: |
3002 | tmpreg = 0xC01; | |
3003 | break; | |
3004 | case FLASHBAR: | |
252b5132 RH |
3005 | case RAMBAR0: |
3006 | tmpreg = 0xC04; | |
3007 | break; | |
3e602632 | 3008 | case RAMBAR: |
252b5132 RH |
3009 | case RAMBAR1: |
3010 | tmpreg = 0xC05; | |
3011 | break; | |
3e602632 NC |
3012 | case MPCR: |
3013 | tmpreg = 0xC0C; | |
3014 | break; | |
3015 | case EDRAMBAR: | |
3016 | tmpreg = 0xC0D; | |
3017 | break; | |
3018 | case MBAR0: | |
3019 | case SECMBAR: | |
3020 | tmpreg = 0xC0E; | |
3021 | break; | |
3022 | case MBAR1: | |
252b5132 RH |
3023 | case MBAR: |
3024 | tmpreg = 0xC0F; | |
3025 | break; | |
3e602632 NC |
3026 | case PCR1U0: |
3027 | tmpreg = 0xD02; | |
3028 | break; | |
3029 | case PCR1L0: | |
3030 | tmpreg = 0xD03; | |
3031 | break; | |
3032 | case PCR2U0: | |
3033 | tmpreg = 0xD04; | |
3034 | break; | |
3035 | case PCR2L0: | |
3036 | tmpreg = 0xD05; | |
3037 | break; | |
3038 | case PCR3U0: | |
3039 | tmpreg = 0xD06; | |
3040 | break; | |
3041 | case PCR3L0: | |
3042 | tmpreg = 0xD07; | |
3043 | break; | |
3044 | case PCR1L1: | |
3045 | tmpreg = 0xD0A; | |
3046 | break; | |
3047 | case PCR1U1: | |
3048 | tmpreg = 0xD0B; | |
3049 | break; | |
3050 | case PCR2L1: | |
3051 | tmpreg = 0xD0C; | |
3052 | break; | |
3053 | case PCR2U1: | |
3054 | tmpreg = 0xD0D; | |
3055 | break; | |
3056 | case PCR3L1: | |
3057 | tmpreg = 0xD0E; | |
3058 | break; | |
3059 | case PCR3U1: | |
3060 | tmpreg = 0xD0F; | |
3061 | break; | |
252b5132 RH |
3062 | default: |
3063 | abort (); | |
3064 | } | |
3065 | install_operand (s[1], tmpreg); | |
3066 | break; | |
3067 | ||
3068 | case 'k': | |
3069 | tmpreg = get_num (&opP->disp, 55); | |
3070 | install_operand (s[1], tmpreg & 0x7f); | |
3071 | break; | |
3072 | ||
3073 | case 'l': | |
3074 | tmpreg = opP->mask; | |
3075 | if (s[1] == 'w') | |
3076 | { | |
3077 | if (tmpreg & 0x7FF0000) | |
3078 | as_bad (_("Floating point register in register list")); | |
3079 | insop (reverse_16_bits (tmpreg), opcode); | |
3080 | } | |
3081 | else | |
3082 | { | |
3083 | if (tmpreg & 0x700FFFF) | |
3084 | as_bad (_("Wrong register in floating-point reglist")); | |
3085 | install_operand (s[1], reverse_8_bits (tmpreg >> 16)); | |
3086 | } | |
3087 | break; | |
3088 | ||
3089 | case 'L': | |
3090 | tmpreg = opP->mask; | |
3091 | if (s[1] == 'w') | |
3092 | { | |
3093 | if (tmpreg & 0x7FF0000) | |
3094 | as_bad (_("Floating point register in register list")); | |
3095 | insop (tmpreg, opcode); | |
3096 | } | |
3097 | else if (s[1] == '8') | |
3098 | { | |
3099 | if (tmpreg & 0x0FFFFFF) | |
3100 | as_bad (_("incorrect register in reglist")); | |
3101 | install_operand (s[1], tmpreg >> 24); | |
3102 | } | |
3103 | else | |
3104 | { | |
3105 | if (tmpreg & 0x700FFFF) | |
3106 | as_bad (_("wrong register in floating-point reglist")); | |
3107 | else | |
3108 | install_operand (s[1], tmpreg >> 16); | |
3109 | } | |
3110 | break; | |
3111 | ||
3112 | case 'M': | |
3113 | install_operand (s[1], get_num (&opP->disp, 60)); | |
3114 | break; | |
3115 | ||
3116 | case 'O': | |
3117 | tmpreg = ((opP->mode == DREG) | |
8fce3f5e | 3118 | ? 0x20 + (int) (opP->reg - DATA) |
252b5132 RH |
3119 | : (get_num (&opP->disp, 40) & 0x1F)); |
3120 | install_operand (s[1], tmpreg); | |
3121 | break; | |
3122 | ||
3123 | case 'Q': | |
3124 | tmpreg = get_num (&opP->disp, 10); | |
3125 | if (tmpreg == 8) | |
3126 | tmpreg = 0; | |
3127 | install_operand (s[1], tmpreg); | |
3128 | break; | |
3129 | ||
3130 | case 'R': | |
3131 | /* This depends on the fact that ADDR registers are eight | |
3132 | more than their corresponding DATA regs, so the result | |
36759679 | 3133 | will have the ADDR_REG bit set. */ |
252b5132 RH |
3134 | install_operand (s[1], opP->reg - DATA); |
3135 | break; | |
3136 | ||
3137 | case 'r': | |
3138 | if (opP->mode == AINDR) | |
3139 | install_operand (s[1], opP->reg - DATA); | |
3140 | else | |
3141 | install_operand (s[1], opP->index.reg - DATA); | |
3142 | break; | |
3143 | ||
3144 | case 's': | |
3145 | if (opP->reg == FPI) | |
3146 | tmpreg = 0x1; | |
3147 | else if (opP->reg == FPS) | |
3148 | tmpreg = 0x2; | |
3149 | else if (opP->reg == FPC) | |
3150 | tmpreg = 0x4; | |
3151 | else | |
3152 | abort (); | |
3153 | install_operand (s[1], tmpreg); | |
3154 | break; | |
3155 | ||
36759679 | 3156 | case 'S': /* Ignore it. */ |
252b5132 RH |
3157 | break; |
3158 | ||
3159 | case 'T': | |
3160 | install_operand (s[1], get_num (&opP->disp, 30)); | |
3161 | break; | |
3162 | ||
36759679 | 3163 | case 'U': /* Ignore it. */ |
252b5132 RH |
3164 | break; |
3165 | ||
3166 | case 'c': | |
3167 | switch (opP->reg) | |
3168 | { | |
3169 | case NC: | |
3170 | tmpreg = 0; | |
3171 | break; | |
3172 | case DC: | |
3173 | tmpreg = 1; | |
3174 | break; | |
3175 | case IC: | |
3176 | tmpreg = 2; | |
3177 | break; | |
3178 | case BC: | |
3179 | tmpreg = 3; | |
3180 | break; | |
3181 | default: | |
3182 | as_fatal (_("failed sanity check")); | |
36759679 | 3183 | } /* switch on cache token. */ |
252b5132 RH |
3184 | install_operand (s[1], tmpreg); |
3185 | break; | |
3186 | #ifndef NO_68851 | |
92774660 | 3187 | /* JF: These are out of order, I fear. */ |
252b5132 RH |
3188 | case 'f': |
3189 | switch (opP->reg) | |
3190 | { | |
3191 | case SFC: | |
3192 | tmpreg = 0; | |
3193 | break; | |
3194 | case DFC: | |
3195 | tmpreg = 1; | |
3196 | break; | |
3197 | default: | |
3198 | abort (); | |
3199 | } | |
3200 | install_operand (s[1], tmpreg); | |
3201 | break; | |
3202 | ||
3203 | case '0': | |
3204 | case '1': | |
3205 | case '2': | |
3206 | switch (opP->reg) | |
3207 | { | |
3208 | case TC: | |
3209 | tmpreg = 0; | |
3210 | break; | |
3211 | case CAL: | |
3212 | tmpreg = 4; | |
3213 | break; | |
3214 | case VAL: | |
3215 | tmpreg = 5; | |
3216 | break; | |
3217 | case SCC: | |
3218 | tmpreg = 6; | |
3219 | break; | |
3220 | case AC: | |
3221 | tmpreg = 7; | |
3222 | break; | |
3223 | default: | |
3224 | abort (); | |
3225 | } | |
3226 | install_operand (s[1], tmpreg); | |
3227 | break; | |
3228 | ||
3229 | case 'V': | |
3230 | if (opP->reg == VAL) | |
3231 | break; | |
3232 | abort (); | |
3233 | ||
3234 | case 'W': | |
3235 | switch (opP->reg) | |
3236 | { | |
3237 | case DRP: | |
3238 | tmpreg = 1; | |
3239 | break; | |
3240 | case SRP: | |
3241 | tmpreg = 2; | |
3242 | break; | |
3243 | case CRP: | |
3244 | tmpreg = 3; | |
3245 | break; | |
3246 | default: | |
3247 | abort (); | |
3248 | } | |
3249 | install_operand (s[1], tmpreg); | |
3250 | break; | |
3251 | ||
3252 | case 'X': | |
3253 | switch (opP->reg) | |
3254 | { | |
3255 | case BAD: | |
3256 | case BAD + 1: | |
3257 | case BAD + 2: | |
3258 | case BAD + 3: | |
3259 | case BAD + 4: | |
3260 | case BAD + 5: | |
3261 | case BAD + 6: | |
3262 | case BAD + 7: | |
3263 | tmpreg = (4 << 10) | ((opP->reg - BAD) << 2); | |
3264 | break; | |
3265 | ||
3266 | case BAC: | |
3267 | case BAC + 1: | |
3268 | case BAC + 2: | |
3269 | case BAC + 3: | |
3270 | case BAC + 4: | |
3271 | case BAC + 5: | |
3272 | case BAC + 6: | |
3273 | case BAC + 7: | |
3274 | tmpreg = (5 << 10) | ((opP->reg - BAC) << 2); | |
3275 | break; | |
3276 | ||
3277 | default: | |
3278 | abort (); | |
3279 | } | |
3280 | install_operand (s[1], tmpreg); | |
3281 | break; | |
3282 | case 'Y': | |
3283 | know (opP->reg == PSR); | |
3284 | break; | |
3285 | case 'Z': | |
3286 | know (opP->reg == PCSR); | |
3287 | break; | |
3288 | #endif /* m68851 */ | |
3289 | case '3': | |
3290 | switch (opP->reg) | |
3291 | { | |
3292 | case TT0: | |
3293 | tmpreg = 2; | |
3294 | break; | |
3295 | case TT1: | |
3296 | tmpreg = 3; | |
3297 | break; | |
3298 | default: | |
3299 | abort (); | |
3300 | } | |
3301 | install_operand (s[1], tmpreg); | |
3302 | break; | |
3303 | case 't': | |
3304 | tmpreg = get_num (&opP->disp, 20); | |
3305 | install_operand (s[1], tmpreg); | |
3306 | break; | |
36759679 | 3307 | case '_': /* used only for move16 absolute 32-bit address. */ |
252b5132 RH |
3308 | if (isvar (&opP->disp)) |
3309 | add_fix ('l', &opP->disp, 0, 0); | |
3e602632 | 3310 | tmpreg = get_num (&opP->disp, 90); |
252b5132 RH |
3311 | addword (tmpreg >> 16); |
3312 | addword (tmpreg & 0xFFFF); | |
3313 | break; | |
6da466c7 ILT |
3314 | case 'u': |
3315 | install_operand (s[1], opP->reg - DATA0L); | |
3316 | opP->reg -= (DATA0L); | |
36759679 | 3317 | opP->reg &= 0x0F; /* remove upper/lower bit. */ |
6da466c7 | 3318 | break; |
3e602632 NC |
3319 | case 'x': |
3320 | tmpreg = get_num (&opP->disp, 80); | |
3321 | if (tmpreg == -1) | |
3322 | tmpreg = 0; | |
3323 | install_operand (s[1], tmpreg); | |
3324 | break; | |
252b5132 RH |
3325 | default: |
3326 | abort (); | |
3327 | } | |
3328 | } | |
3329 | ||
3330 | /* By the time whe get here (FINALLY) the_ins contains the complete | |
92774660 | 3331 | instruction, ready to be emitted. . . */ |
252b5132 RH |
3332 | } |
3333 | ||
3334 | static int | |
3335 | reverse_16_bits (in) | |
3336 | int in; | |
3337 | { | |
3338 | int out = 0; | |
3339 | int n; | |
3340 | ||
3341 | static int mask[16] = | |
3342 | { | |
3343 | 0x0001, 0x0002, 0x0004, 0x0008, 0x0010, 0x0020, 0x0040, 0x0080, | |
3344 | 0x0100, 0x0200, 0x0400, 0x0800, 0x1000, 0x2000, 0x4000, 0x8000 | |
3345 | }; | |
3346 | for (n = 0; n < 16; n++) | |
3347 | { | |
3348 | if (in & mask[n]) | |
3349 | out |= mask[15 - n]; | |
3350 | } | |
3351 | return out; | |
3352 | } /* reverse_16_bits() */ | |
3353 | ||
3354 | static int | |
3355 | reverse_8_bits (in) | |
3356 | int in; | |
3357 | { | |
3358 | int out = 0; | |
3359 | int n; | |
3360 | ||
3361 | static int mask[8] = | |
3362 | { | |
3363 | 0x0001, 0x0002, 0x0004, 0x0008, 0x0010, 0x0020, 0x0040, 0x0080, | |
3364 | }; | |
3365 | ||
3366 | for (n = 0; n < 8; n++) | |
3367 | { | |
3368 | if (in & mask[n]) | |
3369 | out |= mask[7 - n]; | |
3370 | } | |
3371 | return out; | |
3372 | } /* reverse_8_bits() */ | |
3373 | ||
3374 | /* Cause an extra frag to be generated here, inserting up to 10 bytes | |
3375 | (that value is chosen in the frag_var call in md_assemble). TYPE | |
3376 | is the subtype of the frag to be generated; its primary type is | |
3377 | rs_machine_dependent. | |
3378 | ||
3379 | The TYPE parameter is also used by md_convert_frag_1 and | |
3380 | md_estimate_size_before_relax. The appropriate type of fixup will | |
3381 | be emitted by md_convert_frag_1. | |
3382 | ||
3383 | ADD becomes the FR_SYMBOL field of the frag, and OFF the FR_OFFSET. */ | |
3384 | static void | |
3385 | install_operand (mode, val) | |
3386 | int mode; | |
3387 | int val; | |
3388 | { | |
3389 | switch (mode) | |
3390 | { | |
3391 | case 's': | |
36759679 | 3392 | the_ins.opcode[0] |= val & 0xFF; /* JF FF is for M kludge. */ |
252b5132 RH |
3393 | break; |
3394 | case 'd': | |
3395 | the_ins.opcode[0] |= val << 9; | |
3396 | break; | |
3397 | case '1': | |
3398 | the_ins.opcode[1] |= val << 12; | |
3399 | break; | |
3400 | case '2': | |
3401 | the_ins.opcode[1] |= val << 6; | |
3402 | break; | |
3403 | case '3': | |
3404 | the_ins.opcode[1] |= val; | |
3405 | break; | |
3406 | case '4': | |
3407 | the_ins.opcode[2] |= val << 12; | |
3408 | break; | |
3409 | case '5': | |
3410 | the_ins.opcode[2] |= val << 6; | |
3411 | break; | |
3412 | case '6': | |
3413 | /* DANGER! This is a hack to force cas2l and cas2w cmds to be | |
3414 | three words long! */ | |
3415 | the_ins.numo++; | |
3416 | the_ins.opcode[2] |= val; | |
3417 | break; | |
3418 | case '7': | |
3419 | the_ins.opcode[1] |= val << 7; | |
3420 | break; | |
3421 | case '8': | |
3422 | the_ins.opcode[1] |= val << 10; | |
3423 | break; | |
3424 | #ifndef NO_68851 | |
3425 | case '9': | |
3426 | the_ins.opcode[1] |= val << 5; | |
3427 | break; | |
3428 | #endif | |
3429 | ||
3430 | case 't': | |
3431 | the_ins.opcode[1] |= (val << 10) | (val << 7); | |
3432 | break; | |
3433 | case 'D': | |
3434 | the_ins.opcode[1] |= (val << 12) | val; | |
3435 | break; | |
3436 | case 'g': | |
3437 | the_ins.opcode[0] |= val = 0xff; | |
3438 | break; | |
3439 | case 'i': | |
3440 | the_ins.opcode[0] |= val << 9; | |
3441 | break; | |
3442 | case 'C': | |
3443 | the_ins.opcode[1] |= val; | |
3444 | break; | |
3445 | case 'j': | |
3446 | the_ins.opcode[1] |= val; | |
36759679 | 3447 | the_ins.numo++; /* What a hack. */ |
252b5132 RH |
3448 | break; |
3449 | case 'k': | |
3450 | the_ins.opcode[1] |= val << 4; | |
3451 | break; | |
3452 | case 'b': | |
3453 | case 'w': | |
3454 | case 'W': | |
3455 | case 'l': | |
3456 | break; | |
3457 | case 'e': | |
3458 | the_ins.opcode[0] |= (val << 6); | |
3459 | break; | |
3460 | case 'L': | |
3461 | the_ins.opcode[1] = (val >> 16); | |
3462 | the_ins.opcode[2] = val & 0xffff; | |
3463 | break; | |
6da466c7 ILT |
3464 | case 'm': |
3465 | the_ins.opcode[0] |= ((val & 0x8) << (6 - 3)); | |
3466 | the_ins.opcode[0] |= ((val & 0x7) << 9); | |
3467 | the_ins.opcode[1] |= ((val & 0x10) << (7 - 4)); | |
3468 | break; | |
fd99574b | 3469 | case 'n': /* MAC/EMAC Rx on !load. */ |
6da466c7 ILT |
3470 | the_ins.opcode[0] |= ((val & 0x8) << (6 - 3)); |
3471 | the_ins.opcode[0] |= ((val & 0x7) << 9); | |
fd99574b | 3472 | the_ins.opcode[1] |= ((val & 0x10) << (7 - 4)); |
6da466c7 | 3473 | break; |
fd99574b | 3474 | case 'o': /* MAC/EMAC Rx on load. */ |
6da466c7 ILT |
3475 | the_ins.opcode[1] |= val << 12; |
3476 | the_ins.opcode[1] |= ((val & 0x10) << (7 - 4)); | |
3477 | break; | |
fd99574b | 3478 | case 'M': /* MAC/EMAC Ry on !load. */ |
6da466c7 ILT |
3479 | the_ins.opcode[0] |= (val & 0xF); |
3480 | the_ins.opcode[1] |= ((val & 0x10) << (6 - 4)); | |
3481 | break; | |
fd99574b | 3482 | case 'N': /* MAC/EMAC Ry on load. */ |
6da466c7 ILT |
3483 | the_ins.opcode[1] |= (val & 0xF); |
3484 | the_ins.opcode[1] |= ((val & 0x10) << (6 - 4)); | |
3485 | break; | |
3486 | case 'h': | |
3487 | the_ins.opcode[1] |= ((val != 1) << 10); | |
3488 | break; | |
fd99574b NC |
3489 | case 'F': |
3490 | the_ins.opcode[0] |= ((val & 0x3) << 9); | |
3491 | break; | |
3492 | case 'f': | |
3493 | the_ins.opcode[0] |= ((val & 0x3) << 0); | |
3494 | break; | |
be8c092b | 3495 | case 'G': /* EMAC accumulator in a EMAC load instruction. */ |
fd99574b NC |
3496 | the_ins.opcode[0] |= ((~val & 0x1) << 7); |
3497 | the_ins.opcode[1] |= ((val & 0x2) << (4 - 1)); | |
3498 | break; | |
be8c092b | 3499 | case 'H': /* EMAC accumulator in a EMAC non-load instruction. */ |
fd99574b NC |
3500 | the_ins.opcode[0] |= ((val & 0x1) << 7); |
3501 | the_ins.opcode[1] |= ((val & 0x2) << (4 - 1)); | |
3502 | break; | |
3503 | case 'I': | |
3504 | the_ins.opcode[1] |= ((val & 0x3) << 9); | |
3505 | break; | |
3506 | case ']': | |
3507 | the_ins.opcode[0] |= (val & 0x1) <<10; | |
3508 | break; | |
252b5132 RH |
3509 | case 'c': |
3510 | default: | |
3511 | as_fatal (_("failed sanity check.")); | |
3512 | } | |
6b6e92f4 | 3513 | } |
252b5132 RH |
3514 | |
3515 | static void | |
3516 | install_gen_operand (mode, val) | |
3517 | int mode; | |
3518 | int val; | |
3519 | { | |
3520 | switch (mode) | |
3521 | { | |
fd99574b NC |
3522 | case '/': /* Special for mask loads for mac/msac insns with |
3523 | possible mask; trailing_ampersend set in bit 8. */ | |
3524 | the_ins.opcode[0] |= (val & 0x3f); | |
3525 | the_ins.opcode[1] |= (((val & 0x100) >> 8) << 5); | |
3526 | break; | |
252b5132 RH |
3527 | case 's': |
3528 | the_ins.opcode[0] |= val; | |
3529 | break; | |
3530 | case 'd': | |
3531 | /* This is a kludge!!! */ | |
3532 | the_ins.opcode[0] |= (val & 0x07) << 9 | (val & 0x38) << 3; | |
3533 | break; | |
3534 | case 'b': | |
3535 | case 'w': | |
3536 | case 'l': | |
3537 | case 'f': | |
3538 | case 'F': | |
3539 | case 'x': | |
3540 | case 'p': | |
3541 | the_ins.opcode[0] |= val; | |
3542 | break; | |
36759679 | 3543 | /* more stuff goes here. */ |
252b5132 RH |
3544 | default: |
3545 | as_fatal (_("failed sanity check.")); | |
3546 | } | |
6b6e92f4 | 3547 | } |
252b5132 | 3548 | |
6b6e92f4 NC |
3549 | /* Verify that we have some number of paren pairs, do m68k_ip_op(), and |
3550 | then deal with the bitfield hack. */ | |
252b5132 RH |
3551 | |
3552 | static char * | |
3553 | crack_operand (str, opP) | |
3554 | register char *str; | |
3555 | register struct m68k_op *opP; | |
3556 | { | |
3557 | register int parens; | |
3558 | register int c; | |
3559 | register char *beg_str; | |
3560 | int inquote = 0; | |
3561 | ||
3562 | if (!str) | |
3563 | { | |
3564 | return str; | |
3565 | } | |
3566 | beg_str = str; | |
3567 | for (parens = 0; *str && (parens > 0 || inquote || notend (str)); str++) | |
3568 | { | |
3569 | if (! inquote) | |
3570 | { | |
3571 | if (*str == '(') | |
3572 | parens++; | |
3573 | else if (*str == ')') | |
3574 | { | |
3575 | if (!parens) | |
36759679 | 3576 | { /* ERROR. */ |
252b5132 RH |
3577 | opP->error = _("Extra )"); |
3578 | return str; | |
3579 | } | |
3580 | --parens; | |
3581 | } | |
3582 | } | |
3583 | if (flag_mri && *str == '\'') | |
3584 | inquote = ! inquote; | |
3585 | } | |
3586 | if (!*str && parens) | |
36759679 | 3587 | { /* ERROR. */ |
252b5132 RH |
3588 | opP->error = _("Missing )"); |
3589 | return str; | |
3590 | } | |
3591 | c = *str; | |
3592 | *str = '\0'; | |
3593 | if (m68k_ip_op (beg_str, opP) != 0) | |
3594 | { | |
3595 | *str = c; | |
3596 | return str; | |
3597 | } | |
3598 | *str = c; | |
3599 | if (c == '}') | |
36759679 | 3600 | c = *++str; /* JF bitfield hack. */ |
252b5132 RH |
3601 | if (c) |
3602 | { | |
3603 | c = *++str; | |
3604 | if (!c) | |
3605 | as_bad (_("Missing operand")); | |
3606 | } | |
3607 | ||
3608 | /* Detect MRI REG symbols and convert them to REGLSTs. */ | |
3609 | if (opP->mode == CONTROL && (int)opP->reg < 0) | |
3610 | { | |
3611 | opP->mode = REGLST; | |
3612 | opP->mask = ~(int)opP->reg; | |
3613 | opP->reg = 0; | |
3614 | } | |
3615 | ||
3616 | return str; | |
3617 | } | |
3618 | ||
3619 | /* This is the guts of the machine-dependent assembler. STR points to a | |
3620 | machine dependent instruction. This function is supposed to emit | |
3621 | the frags/bytes it assembles to. | |
3622 | */ | |
3623 | ||
3624 | static void | |
3625 | insert_reg (regname, regnum) | |
3626 | const char *regname; | |
3627 | int regnum; | |
3628 | { | |
3629 | char buf[100]; | |
3630 | int i; | |
3631 | ||
3632 | #ifdef REGISTER_PREFIX | |
3633 | if (!flag_reg_prefix_optional) | |
3634 | { | |
3635 | buf[0] = REGISTER_PREFIX; | |
3636 | strcpy (buf + 1, regname); | |
3637 | regname = buf; | |
3638 | } | |
3639 | #endif | |
3640 | ||
3641 | symbol_table_insert (symbol_new (regname, reg_section, regnum, | |
3642 | &zero_address_frag)); | |
3643 | ||
3644 | for (i = 0; regname[i]; i++) | |
3882b010 | 3645 | buf[i] = TOUPPER (regname[i]); |
252b5132 RH |
3646 | buf[i] = '\0'; |
3647 | ||
3648 | symbol_table_insert (symbol_new (buf, reg_section, regnum, | |
3649 | &zero_address_frag)); | |
3650 | } | |
3651 | ||
3652 | struct init_entry | |
3653 | { | |
3654 | const char *name; | |
3655 | int number; | |
3656 | }; | |
3657 | ||
3658 | static const struct init_entry init_table[] = | |
3659 | { | |
3660 | { "d0", DATA0 }, | |
3661 | { "d1", DATA1 }, | |
3662 | { "d2", DATA2 }, | |
3663 | { "d3", DATA3 }, | |
3664 | { "d4", DATA4 }, | |
3665 | { "d5", DATA5 }, | |
3666 | { "d6", DATA6 }, | |
3667 | { "d7", DATA7 }, | |
3668 | { "a0", ADDR0 }, | |
3669 | { "a1", ADDR1 }, | |
3670 | { "a2", ADDR2 }, | |
3671 | { "a3", ADDR3 }, | |
3672 | { "a4", ADDR4 }, | |
3673 | { "a5", ADDR5 }, | |
3674 | { "a6", ADDR6 }, | |
3675 | { "fp", ADDR6 }, | |
3676 | { "a7", ADDR7 }, | |
3677 | { "sp", ADDR7 }, | |
3678 | { "ssp", ADDR7 }, | |
3679 | { "fp0", FP0 }, | |
3680 | { "fp1", FP1 }, | |
3681 | { "fp2", FP2 }, | |
3682 | { "fp3", FP3 }, | |
3683 | { "fp4", FP4 }, | |
3684 | { "fp5", FP5 }, | |
3685 | { "fp6", FP6 }, | |
3686 | { "fp7", FP7 }, | |
3687 | { "fpi", FPI }, | |
3688 | { "fpiar", FPI }, | |
3689 | { "fpc", FPI }, | |
3690 | { "fps", FPS }, | |
3691 | { "fpsr", FPS }, | |
3692 | { "fpc", FPC }, | |
3693 | { "fpcr", FPC }, | |
3694 | { "control", FPC }, | |
3695 | { "status", FPS }, | |
3696 | { "iaddr", FPI }, | |
3697 | ||
3698 | { "cop0", COP0 }, | |
3699 | { "cop1", COP1 }, | |
3700 | { "cop2", COP2 }, | |
3701 | { "cop3", COP3 }, | |
3702 | { "cop4", COP4 }, | |
3703 | { "cop5", COP5 }, | |
3704 | { "cop6", COP6 }, | |
3705 | { "cop7", COP7 }, | |
3706 | { "pc", PC }, | |
3707 | { "zpc", ZPC }, | |
3708 | { "sr", SR }, | |
3709 | ||
3710 | { "ccr", CCR }, | |
3711 | { "cc", CCR }, | |
3712 | ||
6da466c7 | 3713 | { "acc", ACC }, |
fd99574b NC |
3714 | { "acc0", ACC }, |
3715 | { "acc1", ACC1 }, | |
3716 | { "acc2", ACC2 }, | |
3717 | { "acc3", ACC3 }, | |
3718 | { "accext01", ACCEXT01 }, | |
3719 | { "accext23", ACCEXT23 }, | |
6da466c7 ILT |
3720 | { "macsr", MACSR }, |
3721 | { "mask", MASK }, | |
3722 | ||
36759679 NC |
3723 | /* Control registers. */ |
3724 | { "sfc", SFC }, /* Source Function Code. */ | |
252b5132 | 3725 | { "sfcr", SFC }, |
36759679 | 3726 | { "dfc", DFC }, /* Destination Function Code. */ |
252b5132 | 3727 | { "dfcr", DFC }, |
36759679 NC |
3728 | { "cacr", CACR }, /* Cache Control Register. */ |
3729 | { "caar", CAAR }, /* Cache Address Register. */ | |
252b5132 | 3730 | |
36759679 NC |
3731 | { "usp", USP }, /* User Stack Pointer. */ |
3732 | { "vbr", VBR }, /* Vector Base Register. */ | |
3733 | { "msp", MSP }, /* Master Stack Pointer. */ | |
3734 | { "isp", ISP }, /* Interrupt Stack Pointer. */ | |
252b5132 | 3735 | |
36759679 NC |
3736 | { "itt0", ITT0 }, /* Instruction Transparent Translation Reg 0. */ |
3737 | { "itt1", ITT1 }, /* Instruction Transparent Translation Reg 1. */ | |
3738 | { "dtt0", DTT0 }, /* Data Transparent Translation Register 0. */ | |
3739 | { "dtt1", DTT1 }, /* Data Transparent Translation Register 1. */ | |
252b5132 RH |
3740 | |
3741 | /* 68ec040 versions of same */ | |
36759679 NC |
3742 | { "iacr0", ITT0 }, /* Instruction Access Control Register 0. */ |
3743 | { "iacr1", ITT1 }, /* Instruction Access Control Register 0. */ | |
3744 | { "dacr0", DTT0 }, /* Data Access Control Register 0. */ | |
3745 | { "dacr1", DTT1 }, /* Data Access Control Register 0. */ | |
252b5132 RH |
3746 | |
3747 | /* mcf5200 versions of same. The ColdFire programmer's reference | |
3748 | manual indicated that the order is 2,3,0,1, but Ken Rose | |
3749 | <rose@netcom.com> says that 0,1,2,3 is the correct order. */ | |
3e602632 NC |
3750 | { "acr0", ACR0 }, /* Access Control Unit 0. */ |
3751 | { "acr1", ACR1 }, /* Access Control Unit 1. */ | |
3752 | { "acr2", ACR2 }, /* Access Control Unit 2. */ | |
3753 | { "acr3", ACR3 }, /* Access Control Unit 3. */ | |
252b5132 | 3754 | |
36759679 | 3755 | { "tc", TC }, /* MMU Translation Control Register. */ |
252b5132 RH |
3756 | { "tcr", TC }, |
3757 | ||
36759679 NC |
3758 | { "mmusr", MMUSR }, /* MMU Status Register. */ |
3759 | { "srp", SRP }, /* User Root Pointer. */ | |
3760 | { "urp", URP }, /* Supervisor Root Pointer. */ | |
252b5132 RH |
3761 | |
3762 | { "buscr", BUSCR }, | |
3763 | { "pcr", PCR }, | |
3764 | ||
36759679 NC |
3765 | { "rombar", ROMBAR }, /* ROM Base Address Register. */ |
3766 | { "rambar0", RAMBAR0 }, /* ROM Base Address Register. */ | |
3767 | { "rambar1", RAMBAR1 }, /* ROM Base Address Register. */ | |
3768 | { "mbar", MBAR }, /* Module Base Address Register. */ | |
3e602632 NC |
3769 | |
3770 | { "mbar0", MBAR0 }, /* mcfv4e registers. */ | |
3771 | { "mbar1", MBAR1 }, /* mcfv4e registers. */ | |
3772 | { "rombar0", ROMBAR }, /* mcfv4e registers. */ | |
3773 | { "rombar1", ROMBAR1 }, /* mcfv4e registers. */ | |
3774 | { "mpcr", MPCR }, /* mcfv4e registers. */ | |
3775 | { "edrambar", EDRAMBAR }, /* mcfv4e registers. */ | |
3776 | { "secmbar", SECMBAR }, /* mcfv4e registers. */ | |
3777 | { "asid", TC }, /* mcfv4e registers. */ | |
3778 | { "mmubar", BUSCR }, /* mcfv4e registers. */ | |
3779 | { "pcr1u0", PCR1U0 }, /* mcfv4e registers. */ | |
3780 | { "pcr1l0", PCR1L0 }, /* mcfv4e registers. */ | |
3781 | { "pcr2u0", PCR2U0 }, /* mcfv4e registers. */ | |
3782 | { "pcr2l0", PCR2L0 }, /* mcfv4e registers. */ | |
3783 | { "pcr3u0", PCR3U0 }, /* mcfv4e registers. */ | |
3784 | { "pcr3l0", PCR3L0 }, /* mcfv4e registers. */ | |
3785 | { "pcr1u1", PCR1U1 }, /* mcfv4e registers. */ | |
3786 | { "pcr1l1", PCR1L1 }, /* mcfv4e registers. */ | |
3787 | { "pcr2u1", PCR2U1 }, /* mcfv4e registers. */ | |
3788 | { "pcr2l1", PCR2L1 }, /* mcfv4e registers. */ | |
3789 | { "pcr3u1", PCR3U1 }, /* mcfv4e registers. */ | |
3790 | { "pcr3l1", PCR3L1 }, /* mcfv4e registers. */ | |
3791 | ||
3792 | { "flashbar", FLASHBAR }, /* mcf528x registers. */ | |
3793 | { "rambar", RAMBAR }, /* mcf528x registers. */ | |
36759679 | 3794 | /* End of control registers. */ |
252b5132 RH |
3795 | |
3796 | { "ac", AC }, | |
3797 | { "bc", BC }, | |
3798 | { "cal", CAL }, | |
3799 | { "crp", CRP }, | |
3800 | { "drp", DRP }, | |
3801 | { "pcsr", PCSR }, | |
3802 | { "psr", PSR }, | |
3803 | { "scc", SCC }, | |
3804 | { "val", VAL }, | |
3805 | { "bad0", BAD0 }, | |
3806 | { "bad1", BAD1 }, | |
3807 | { "bad2", BAD2 }, | |
3808 | { "bad3", BAD3 }, | |
3809 | { "bad4", BAD4 }, | |
3810 | { "bad5", BAD5 }, | |
3811 | { "bad6", BAD6 }, | |
3812 | { "bad7", BAD7 }, | |
3813 | { "bac0", BAC0 }, | |
3814 | { "bac1", BAC1 }, | |
3815 | { "bac2", BAC2 }, | |
3816 | { "bac3", BAC3 }, | |
3817 | { "bac4", BAC4 }, | |
3818 | { "bac5", BAC5 }, | |
3819 | { "bac6", BAC6 }, | |
3820 | { "bac7", BAC7 }, | |
3821 | ||
3822 | { "ic", IC }, | |
3823 | { "dc", DC }, | |
3824 | { "nc", NC }, | |
3825 | ||
3826 | { "tt0", TT0 }, | |
3827 | { "tt1", TT1 }, | |
36759679 | 3828 | /* 68ec030 versions of same. */ |
252b5132 RH |
3829 | { "ac0", TT0 }, |
3830 | { "ac1", TT1 }, | |
36759679 | 3831 | /* 68ec030 access control unit, identical to 030 MMU status reg. */ |
252b5132 RH |
3832 | { "acusr", PSR }, |
3833 | ||
3834 | /* Suppressed data and address registers. */ | |
3835 | { "zd0", ZDATA0 }, | |
3836 | { "zd1", ZDATA1 }, | |
3837 | { "zd2", ZDATA2 }, | |
3838 | { "zd3", ZDATA3 }, | |
3839 | { "zd4", ZDATA4 }, | |
3840 | { "zd5", ZDATA5 }, | |
3841 | { "zd6", ZDATA6 }, | |
3842 | { "zd7", ZDATA7 }, | |
3843 | { "za0", ZADDR0 }, | |
3844 | { "za1", ZADDR1 }, | |
3845 | { "za2", ZADDR2 }, | |
3846 | { "za3", ZADDR3 }, | |
3847 | { "za4", ZADDR4 }, | |
3848 | { "za5", ZADDR5 }, | |
3849 | { "za6", ZADDR6 }, | |
3850 | { "za7", ZADDR7 }, | |
3851 | ||
92774660 | 3852 | /* Upper and lower data and address registers, used by macw and msacw. */ |
6da466c7 ILT |
3853 | { "d0l", DATA0L }, |
3854 | { "d1l", DATA1L }, | |
3855 | { "d2l", DATA2L }, | |
3856 | { "d3l", DATA3L }, | |
3857 | { "d4l", DATA4L }, | |
3858 | { "d5l", DATA5L }, | |
3859 | { "d6l", DATA6L }, | |
3860 | { "d7l", DATA7L }, | |
3861 | ||
3862 | { "a0l", ADDR0L }, | |
3863 | { "a1l", ADDR1L }, | |
3864 | { "a2l", ADDR2L }, | |
3865 | { "a3l", ADDR3L }, | |
3866 | { "a4l", ADDR4L }, | |
3867 | { "a5l", ADDR5L }, | |
3868 | { "a6l", ADDR6L }, | |
3869 | { "a7l", ADDR7L }, | |
3870 | ||
3871 | { "d0u", DATA0U }, | |
3872 | { "d1u", DATA1U }, | |
3873 | { "d2u", DATA2U }, | |
3874 | { "d3u", DATA3U }, | |
3875 | { "d4u", DATA4U }, | |
3876 | { "d5u", DATA5U }, | |
3877 | { "d6u", DATA6U }, | |
3878 | { "d7u", DATA7U }, | |
3879 | ||
3880 | { "a0u", ADDR0U }, | |
3881 | { "a1u", ADDR1U }, | |
3882 | { "a2u", ADDR2U }, | |
3883 | { "a3u", ADDR3U }, | |
3884 | { "a4u", ADDR4U }, | |
3885 | { "a5u", ADDR5U }, | |
3886 | { "a6u", ADDR6U }, | |
3887 | { "a7u", ADDR7U }, | |
3888 | ||
252b5132 RH |
3889 | { 0, 0 } |
3890 | }; | |
3891 | ||
3892 | static void | |
3893 | init_regtable () | |
3894 | { | |
3895 | int i; | |
3896 | for (i = 0; init_table[i].name; i++) | |
3897 | insert_reg (init_table[i].name, init_table[i].number); | |
3898 | } | |
3899 | ||
3900 | static int no_68851, no_68881; | |
3901 | ||
3902 | #ifdef OBJ_AOUT | |
3903 | /* a.out machine type. Default to 68020. */ | |
3904 | int m68k_aout_machtype = 2; | |
3905 | #endif | |
3906 | ||
3907 | void | |
3908 | md_assemble (str) | |
3909 | char *str; | |
3910 | { | |
3911 | const char *er; | |
3912 | short *fromP; | |
3913 | char *toP = NULL; | |
3914 | int m, n = 0; | |
3915 | char *to_beg_P; | |
3916 | int shorts_this_frag; | |
3917 | fixS *fixP; | |
3918 | ||
3919 | /* In MRI mode, the instruction and operands are separated by a | |
3920 | space. Anything following the operands is a comment. The label | |
3921 | has already been removed. */ | |
3922 | if (flag_mri) | |
3923 | { | |
3924 | char *s; | |
3925 | int fields = 0; | |
3926 | int infield = 0; | |
3927 | int inquote = 0; | |
3928 | ||
3929 | for (s = str; *s != '\0'; s++) | |
3930 | { | |
3931 | if ((*s == ' ' || *s == '\t') && ! inquote) | |
3932 | { | |
3933 | if (infield) | |
3934 | { | |
3935 | ++fields; | |
3936 | if (fields >= 2) | |
3937 | { | |
3938 | *s = '\0'; | |
3939 | break; | |
3940 | } | |
3941 | infield = 0; | |
3942 | } | |
3943 | } | |
3944 | else | |
3945 | { | |
3946 | if (! infield) | |
3947 | infield = 1; | |
3948 | if (*s == '\'') | |
3949 | inquote = ! inquote; | |
3950 | } | |
3951 | } | |
3952 | } | |
3953 | ||
3954 | memset ((char *) (&the_ins), '\0', sizeof (the_ins)); | |
3955 | m68k_ip (str); | |
3956 | er = the_ins.error; | |
3957 | if (!er) | |
3958 | { | |
3959 | for (n = 0; n < the_ins.numargs; n++) | |
3960 | if (the_ins.operands[n].error) | |
3961 | { | |
3962 | er = the_ins.operands[n].error; | |
3963 | break; | |
3964 | } | |
3965 | } | |
3966 | if (er) | |
3967 | { | |
3968 | as_bad (_("%s -- statement `%s' ignored"), er, str); | |
3969 | return; | |
3970 | } | |
3971 | ||
3972 | /* If there is a current label, record that it marks an instruction. */ | |
3973 | if (current_label != NULL) | |
3974 | { | |
3975 | current_label->text = 1; | |
3976 | current_label = NULL; | |
3977 | } | |
3978 | ||
f27a3839 AS |
3979 | #ifdef OBJ_ELF |
3980 | /* Tie dwarf2 debug info to the address at the start of the insn. */ | |
3981 | dwarf2_emit_insn (0); | |
3982 | #endif | |
3983 | ||
252b5132 RH |
3984 | if (the_ins.nfrag == 0) |
3985 | { | |
36759679 | 3986 | /* No frag hacking involved; just put it out. */ |
252b5132 RH |
3987 | toP = frag_more (2 * the_ins.numo); |
3988 | fromP = &the_ins.opcode[0]; | |
3989 | for (m = the_ins.numo; m; --m) | |
3990 | { | |
3991 | md_number_to_chars (toP, (long) (*fromP), 2); | |
3992 | toP += 2; | |
3993 | fromP++; | |
3994 | } | |
36759679 | 3995 | /* Put out symbol-dependent info. */ |
252b5132 RH |
3996 | for (m = 0; m < the_ins.nrel; m++) |
3997 | { | |
3998 | switch (the_ins.reloc[m].wid) | |
3999 | { | |
4000 | case 'B': | |
4001 | n = 1; | |
4002 | break; | |
4003 | case 'b': | |
4004 | n = 1; | |
4005 | break; | |
4006 | case '3': | |
4007 | n = 1; | |
4008 | break; | |
4009 | case 'w': | |
4010 | case 'W': | |
4011 | n = 2; | |
4012 | break; | |
4013 | case 'l': | |
4014 | n = 4; | |
4015 | break; | |
4016 | default: | |
4017 | as_fatal (_("Don't know how to figure width of %c in md_assemble()"), | |
4018 | the_ins.reloc[m].wid); | |
4019 | } | |
4020 | ||
4021 | fixP = fix_new_exp (frag_now, | |
4022 | ((toP - frag_now->fr_literal) | |
4023 | - the_ins.numo * 2 + the_ins.reloc[m].n), | |
4024 | n, | |
4025 | &the_ins.reloc[m].exp, | |
4026 | the_ins.reloc[m].pcrel, | |
4027 | get_reloc_code (n, the_ins.reloc[m].pcrel, | |
4028 | the_ins.reloc[m].pic_reloc)); | |
4029 | fixP->fx_pcrel_adjust = the_ins.reloc[m].pcrel_fix; | |
4030 | if (the_ins.reloc[m].wid == 'B') | |
4031 | fixP->fx_signed = 1; | |
4032 | } | |
4033 | return; | |
4034 | } | |
4035 | ||
36759679 | 4036 | /* There's some frag hacking. */ |
fbe572f9 AM |
4037 | { |
4038 | /* Calculate the max frag size. */ | |
4039 | int wid; | |
4040 | ||
4041 | wid = 2 * the_ins.fragb[0].fragoff; | |
4042 | for (n = 1; n < the_ins.nfrag; n++) | |
4043 | wid += 2 * (the_ins.numo - the_ins.fragb[n - 1].fragoff); | |
4044 | /* frag_var part. */ | |
4045 | wid += 10; | |
4046 | /* Make sure the whole insn fits in one chunk, in particular that | |
4047 | the var part is attached, as we access one byte before the | |
4048 | variable frag for byte branches. */ | |
4049 | frag_grow (wid); | |
4050 | } | |
4051 | ||
252b5132 RH |
4052 | for (n = 0, fromP = &the_ins.opcode[0]; n < the_ins.nfrag; n++) |
4053 | { | |
4054 | int wid; | |
4055 | ||
4056 | if (n == 0) | |
4057 | wid = 2 * the_ins.fragb[n].fragoff; | |
4058 | else | |
4059 | wid = 2 * (the_ins.numo - the_ins.fragb[n - 1].fragoff); | |
4060 | toP = frag_more (wid); | |
4061 | to_beg_P = toP; | |
4062 | shorts_this_frag = 0; | |
4063 | for (m = wid / 2; m; --m) | |
4064 | { | |
4065 | md_number_to_chars (toP, (long) (*fromP), 2); | |
4066 | toP += 2; | |
4067 | fromP++; | |
4068 | shorts_this_frag++; | |
4069 | } | |
4070 | for (m = 0; m < the_ins.nrel; m++) | |
4071 | { | |
4072 | if ((the_ins.reloc[m].n) >= 2 * shorts_this_frag) | |
4073 | { | |
4074 | the_ins.reloc[m].n -= 2 * shorts_this_frag; | |
4075 | break; | |
4076 | } | |
4077 | wid = the_ins.reloc[m].wid; | |
4078 | if (wid == 0) | |
4079 | continue; | |
4080 | the_ins.reloc[m].wid = 0; | |
4081 | wid = (wid == 'b') ? 1 : (wid == 'w') ? 2 : (wid == 'l') ? 4 : 4000; | |
4082 | ||
4083 | fixP = fix_new_exp (frag_now, | |
4084 | ((toP - frag_now->fr_literal) | |
4085 | - the_ins.numo * 2 + the_ins.reloc[m].n), | |
4086 | wid, | |
4087 | &the_ins.reloc[m].exp, | |
4088 | the_ins.reloc[m].pcrel, | |
4089 | get_reloc_code (wid, the_ins.reloc[m].pcrel, | |
4090 | the_ins.reloc[m].pic_reloc)); | |
4091 | fixP->fx_pcrel_adjust = the_ins.reloc[m].pcrel_fix; | |
4092 | } | |
4093 | (void) frag_var (rs_machine_dependent, 10, 0, | |
4094 | (relax_substateT) (the_ins.fragb[n].fragty), | |
4095 | the_ins.fragb[n].fadd, the_ins.fragb[n].foff, to_beg_P); | |
4096 | } | |
4097 | n = (the_ins.numo - the_ins.fragb[n - 1].fragoff); | |
4098 | shorts_this_frag = 0; | |
4099 | if (n) | |
4100 | { | |
4101 | toP = frag_more (n * sizeof (short)); | |
4102 | while (n--) | |
4103 | { | |
4104 | md_number_to_chars (toP, (long) (*fromP), 2); | |
4105 | toP += 2; | |
4106 | fromP++; | |
4107 | shorts_this_frag++; | |
4108 | } | |
4109 | } | |
4110 | for (m = 0; m < the_ins.nrel; m++) | |
4111 | { | |
4112 | int wid; | |
4113 | ||
4114 | wid = the_ins.reloc[m].wid; | |
4115 | if (wid == 0) | |
4116 | continue; | |
4117 | the_ins.reloc[m].wid = 0; | |
4118 | wid = (wid == 'b') ? 1 : (wid == 'w') ? 2 : (wid == 'l') ? 4 : 4000; | |
4119 | ||
4120 | fixP = fix_new_exp (frag_now, | |
4121 | ((the_ins.reloc[m].n + toP - frag_now->fr_literal) | |
4122 | - shorts_this_frag * 2), | |
4123 | wid, | |
4124 | &the_ins.reloc[m].exp, | |
4125 | the_ins.reloc[m].pcrel, | |
4126 | get_reloc_code (wid, the_ins.reloc[m].pcrel, | |
4127 | the_ins.reloc[m].pic_reloc)); | |
4128 | fixP->fx_pcrel_adjust = the_ins.reloc[m].pcrel_fix; | |
4129 | } | |
4130 | } | |
4131 | ||
60fed2d3 NC |
4132 | /* Comparison function used by qsort to rank the opcode entries by name. */ |
4133 | ||
4134 | static int | |
4135 | m68k_compare_opcode (const void * v1, const void * v2) | |
4136 | { | |
4137 | struct m68k_opcode * op1, * op2; | |
4138 | int ret; | |
4139 | ||
4140 | op1 = *(struct m68k_opcode **) v1; | |
4141 | op2 = *(struct m68k_opcode **) v2; | |
4142 | ||
4143 | /* Compare the two names. If different, return the comparison. | |
4144 | If the same, return the order they are in the opcode table. */ | |
4145 | ret = strcmp (op1->name, op2->name); | |
4146 | if (ret) | |
4147 | return ret; | |
4148 | if (op1 < op2) | |
4149 | return -1; | |
4150 | return 0; | |
4151 | } | |
4152 | ||
252b5132 | 4153 | void |
60fed2d3 | 4154 | md_begin (void) |
252b5132 | 4155 | { |
60fed2d3 NC |
4156 | const struct m68k_opcode *ins; |
4157 | struct m68k_incant *hack, *slak; | |
4158 | const char *retval = 0; /* Empty string, or error msg text. */ | |
4159 | int i; | |
4160 | ||
4161 | /* Set up hash tables with 68000 instructions. | |
4162 | similar to what the vax assembler does. */ | |
252b5132 RH |
4163 | /* RMS claims the thing to do is take the m68k-opcode.h table, and make |
4164 | a copy of it at runtime, adding in the information we want but isn't | |
4165 | there. I think it'd be better to have an awk script hack the table | |
4166 | at compile time. Or even just xstr the table and use it as-is. But | |
4167 | my lord ghod hath spoken, so we do it this way. Excuse the ugly var | |
4168 | names. */ | |
4169 | ||
252b5132 RH |
4170 | if (flag_mri) |
4171 | { | |
4172 | flag_reg_prefix_optional = 1; | |
4173 | m68k_abspcadd = 1; | |
4174 | if (! m68k_rel32_from_cmdline) | |
4175 | m68k_rel32 = 0; | |
4176 | } | |
4177 | ||
60fed2d3 NC |
4178 | /* First sort the opcode table into alphabetical order to seperate |
4179 | the order that the assembler wants to see the opcodes from the | |
4180 | order that the disassembler wants to see them. */ | |
4181 | m68k_sorted_opcodes = xmalloc (m68k_numopcodes * sizeof (* m68k_sorted_opcodes)); | |
4182 | if (!m68k_sorted_opcodes) | |
4183 | as_fatal (_("Internal Error: Can't allocate m68k_sorted_opcodes of size %d"), | |
4184 | m68k_numopcodes * sizeof (* m68k_sorted_opcodes)); | |
4185 | ||
4186 | for (i = m68k_numopcodes; i--;) | |
4187 | m68k_sorted_opcodes[i] = m68k_opcodes + i; | |
4188 | ||
4189 | qsort (m68k_sorted_opcodes, m68k_numopcodes, | |
4190 | sizeof (m68k_sorted_opcodes[0]), m68k_compare_opcode); | |
4191 | ||
252b5132 RH |
4192 | op_hash = hash_new (); |
4193 | ||
4194 | obstack_begin (&robyn, 4000); | |
4195 | for (i = 0; i < m68k_numopcodes; i++) | |
4196 | { | |
4197 | hack = slak = (struct m68k_incant *) obstack_alloc (&robyn, sizeof (struct m68k_incant)); | |
4198 | do | |
4199 | { | |
60fed2d3 NC |
4200 | ins = m68k_sorted_opcodes[i]; |
4201 | ||
4202 | /* We *could* ignore insns that don't match our | |
4203 | arch here by just leaving them out of the hash. */ | |
252b5132 RH |
4204 | slak->m_operands = ins->args; |
4205 | slak->m_opnum = strlen (slak->m_operands) / 2; | |
4206 | slak->m_arch = ins->arch; | |
4207 | slak->m_opcode = ins->opcode; | |
36759679 | 4208 | /* This is kludgey. */ |
252b5132 RH |
4209 | slak->m_codenum = ((ins->match) & 0xffffL) ? 2 : 1; |
4210 | if (i + 1 != m68k_numopcodes | |
60fed2d3 | 4211 | && !strcmp (ins->name, m68k_sorted_opcodes[i + 1]->name)) |
252b5132 | 4212 | { |
60fed2d3 | 4213 | slak->m_next = obstack_alloc (&robyn, sizeof (struct m68k_incant)); |
252b5132 RH |
4214 | i++; |
4215 | } | |
4216 | else | |
4217 | slak->m_next = 0; | |
4218 | slak = slak->m_next; | |
4219 | } | |
4220 | while (slak); | |
4221 | ||
4222 | retval = hash_insert (op_hash, ins->name, (char *) hack); | |
4223 | if (retval) | |
4224 | as_fatal (_("Internal Error: Can't hash %s: %s"), ins->name, retval); | |
4225 | } | |
4226 | ||
4227 | for (i = 0; i < m68k_numaliases; i++) | |
4228 | { | |
4229 | const char *name = m68k_opcode_aliases[i].primary; | |
4230 | const char *alias = m68k_opcode_aliases[i].alias; | |
4231 | PTR val = hash_find (op_hash, name); | |
60fed2d3 | 4232 | |
252b5132 RH |
4233 | if (!val) |
4234 | as_fatal (_("Internal Error: Can't find %s in hash table"), name); | |
4235 | retval = hash_insert (op_hash, alias, val); | |
4236 | if (retval) | |
4237 | as_fatal (_("Internal Error: Can't hash %s: %s"), alias, retval); | |
4238 | } | |
4239 | ||
4240 | /* In MRI mode, all unsized branches are variable sized. Normally, | |
4241 | they are word sized. */ | |
4242 | if (flag_mri) | |
4243 | { | |
4244 | static struct m68k_opcode_alias mri_aliases[] = | |
4245 | { | |
4246 | { "bhi", "jhi", }, | |
4247 | { "bls", "jls", }, | |
4248 | { "bcc", "jcc", }, | |
4249 | { "bcs", "jcs", }, | |
4250 | { "bne", "jne", }, | |
4251 | { "beq", "jeq", }, | |
4252 | { "bvc", "jvc", }, | |
4253 | { "bvs", "jvs", }, | |
4254 | { "bpl", "jpl", }, | |
4255 | { "bmi", "jmi", }, | |
4256 | { "bge", "jge", }, | |
4257 | { "blt", "jlt", }, | |
4258 | { "bgt", "jgt", }, | |
4259 | { "ble", "jle", }, | |
4260 | { "bra", "jra", }, | |
4261 | { "bsr", "jbsr", }, | |
4262 | }; | |
4263 | ||
8fce3f5e AM |
4264 | for (i = 0; |
4265 | i < (int) (sizeof mri_aliases / sizeof mri_aliases[0]); | |
4266 | i++) | |
252b5132 RH |
4267 | { |
4268 | const char *name = mri_aliases[i].primary; | |
4269 | const char *alias = mri_aliases[i].alias; | |
4270 | PTR val = hash_find (op_hash, name); | |
60fed2d3 | 4271 | |
252b5132 RH |
4272 | if (!val) |
4273 | as_fatal (_("Internal Error: Can't find %s in hash table"), name); | |
4274 | retval = hash_jam (op_hash, alias, val); | |
4275 | if (retval) | |
4276 | as_fatal (_("Internal Error: Can't hash %s: %s"), alias, retval); | |
4277 | } | |
4278 | } | |
4279 | ||
8fce3f5e | 4280 | for (i = 0; i < (int) sizeof (notend_table); i++) |
252b5132 RH |
4281 | { |
4282 | notend_table[i] = 0; | |
4283 | alt_notend_table[i] = 0; | |
4284 | } | |
60fed2d3 | 4285 | |
252b5132 RH |
4286 | notend_table[','] = 1; |
4287 | notend_table['{'] = 1; | |
4288 | notend_table['}'] = 1; | |
4289 | alt_notend_table['a'] = 1; | |
4290 | alt_notend_table['A'] = 1; | |
4291 | alt_notend_table['d'] = 1; | |
4292 | alt_notend_table['D'] = 1; | |
4293 | alt_notend_table['#'] = 1; | |
4294 | alt_notend_table['&'] = 1; | |
4295 | alt_notend_table['f'] = 1; | |
4296 | alt_notend_table['F'] = 1; | |
4297 | #ifdef REGISTER_PREFIX | |
4298 | alt_notend_table[REGISTER_PREFIX] = 1; | |
4299 | #endif | |
4300 | ||
4301 | /* We need to put '(' in alt_notend_table to handle | |
60fed2d3 | 4302 | cas2 %d0:%d2,%d3:%d4,(%a0):(%a1) */ |
252b5132 RH |
4303 | alt_notend_table['('] = 1; |
4304 | ||
4305 | /* We need to put '@' in alt_notend_table to handle | |
60fed2d3 | 4306 | cas2 %d0:%d2,%d3:%d4,@(%d0):@(%d1) */ |
252b5132 RH |
4307 | alt_notend_table['@'] = 1; |
4308 | ||
4309 | /* We need to put digits in alt_notend_table to handle | |
60fed2d3 | 4310 | bfextu %d0{24:1},%d0 */ |
252b5132 RH |
4311 | alt_notend_table['0'] = 1; |
4312 | alt_notend_table['1'] = 1; | |
4313 | alt_notend_table['2'] = 1; | |
4314 | alt_notend_table['3'] = 1; | |
4315 | alt_notend_table['4'] = 1; | |
4316 | alt_notend_table['5'] = 1; | |
4317 | alt_notend_table['6'] = 1; | |
4318 | alt_notend_table['7'] = 1; | |
4319 | alt_notend_table['8'] = 1; | |
4320 | alt_notend_table['9'] = 1; | |
4321 | ||
4322 | #ifndef MIT_SYNTAX_ONLY | |
4323 | /* Insert pseudo ops, these have to go into the opcode table since | |
36759679 | 4324 | gas expects pseudo ops to start with a dot. */ |
252b5132 RH |
4325 | { |
4326 | int n = 0; | |
60fed2d3 | 4327 | |
252b5132 RH |
4328 | while (mote_pseudo_table[n].poc_name) |
4329 | { | |
60fed2d3 | 4330 | hack = obstack_alloc (&robyn, sizeof (struct m68k_incant)); |
252b5132 RH |
4331 | hash_insert (op_hash, |
4332 | mote_pseudo_table[n].poc_name, (char *) hack); | |
4333 | hack->m_operands = 0; | |
4334 | hack->m_opnum = n; | |
4335 | n++; | |
4336 | } | |
4337 | } | |
4338 | #endif | |
4339 | ||
4340 | init_regtable (); | |
4341 | ||
4342 | #ifdef OBJ_ELF | |
4343 | record_alignment (text_section, 2); | |
4344 | record_alignment (data_section, 2); | |
4345 | record_alignment (bss_section, 2); | |
4346 | #endif | |
4347 | } | |
4348 | ||
4349 | static void | |
4350 | select_control_regs () | |
4351 | { | |
4352 | /* Note which set of "movec" control registers is available. */ | |
6b6e92f4 | 4353 | switch (current_chip) |
252b5132 | 4354 | { |
4f2a7c9e | 4355 | case 0: |
6b6e92f4 NC |
4356 | if (verbose) |
4357 | as_warn (_("architecture not yet selected: defaulting to 68020")); | |
4f2a7c9e NC |
4358 | control_regs = m68020_control_regs; |
4359 | break; | |
4360 | ||
252b5132 RH |
4361 | case m68000: |
4362 | control_regs = m68000_control_regs; | |
4363 | break; | |
4364 | case m68010: | |
4365 | control_regs = m68010_control_regs; | |
4366 | break; | |
4367 | case m68020: | |
4368 | case m68030: | |
4369 | control_regs = m68020_control_regs; | |
4370 | break; | |
4371 | case m68040: | |
4372 | control_regs = m68040_control_regs; | |
4373 | break; | |
4374 | case m68060: | |
4375 | control_regs = m68060_control_regs; | |
4376 | break; | |
4377 | case cpu32: | |
4378 | control_regs = cpu32_control_regs; | |
4379 | break; | |
4380 | case mcf5200: | |
6da466c7 ILT |
4381 | case mcf5206e: |
4382 | case mcf5307: | |
dc84e067 | 4383 | case mcf5407: |
6da466c7 | 4384 | control_regs = mcf_control_regs; |
252b5132 | 4385 | break; |
3e602632 | 4386 | case mcf528x: |
6b6e92f4 | 4387 | case mcf521x: |
3e602632 NC |
4388 | control_regs = mcf528x_control_regs; |
4389 | break; | |
6b6e92f4 NC |
4390 | case mcf5470: |
4391 | case mcf5480: | |
3e602632 NC |
4392 | control_regs = mcfv4e_control_regs; |
4393 | break; | |
252b5132 RH |
4394 | default: |
4395 | abort (); | |
4396 | } | |
4397 | } | |
4398 | ||
4399 | void | |
4400 | m68k_init_after_args () | |
4401 | { | |
4402 | if (cpu_of_arch (current_architecture) == 0) | |
4403 | { | |
4404 | int i; | |
4405 | const char *default_cpu = TARGET_CPU; | |
4406 | ||
4407 | if (*default_cpu == 'm') | |
4408 | default_cpu++; | |
4409 | for (i = 0; i < n_archs; i++) | |
4410 | if (strcasecmp (default_cpu, archs[i].name) == 0) | |
4411 | break; | |
4412 | if (i == n_archs) | |
4413 | { | |
4414 | as_bad (_("unrecognized default cpu `%s' ???"), TARGET_CPU); | |
4415 | current_architecture |= m68020; | |
4416 | } | |
4417 | else | |
4418 | current_architecture |= archs[i].arch; | |
4419 | } | |
4420 | /* Permit m68881 specification with all cpus; those that can't work | |
4421 | with a coprocessor could be doing emulation. */ | |
4422 | if (current_architecture & m68851) | |
4423 | { | |
4424 | if (current_architecture & m68040) | |
60fed2d3 | 4425 | as_warn (_("68040 and 68851 specified; mmu instructions may assemble incorrectly")); |
252b5132 RH |
4426 | } |
4427 | /* What other incompatibilities could we check for? */ | |
4428 | ||
4429 | /* Toss in some default assumptions about coprocessors. */ | |
4430 | if (!no_68881 | |
4431 | && (cpu_of_arch (current_architecture) | |
4432 | /* Can CPU32 have a 68881 coprocessor?? */ | |
4433 | & (m68020 | m68030 | cpu32))) | |
60fed2d3 NC |
4434 | current_architecture |= m68881; |
4435 | ||
252b5132 RH |
4436 | if (!no_68851 |
4437 | && (cpu_of_arch (current_architecture) & m68020up) != 0 | |
4438 | && (cpu_of_arch (current_architecture) & m68040up) == 0) | |
60fed2d3 NC |
4439 | current_architecture |= m68851; |
4440 | ||
252b5132 RH |
4441 | if (no_68881 && (current_architecture & m68881)) |
4442 | as_bad (_("options for 68881 and no-68881 both given")); | |
60fed2d3 | 4443 | |
252b5132 RH |
4444 | if (no_68851 && (current_architecture & m68851)) |
4445 | as_bad (_("options for 68851 and no-68851 both given")); | |
4446 | ||
4447 | #ifdef OBJ_AOUT | |
4448 | /* Work out the magic number. This isn't very general. */ | |
4449 | if (current_architecture & m68000) | |
4450 | m68k_aout_machtype = 0; | |
4451 | else if (current_architecture & m68010) | |
4452 | m68k_aout_machtype = 1; | |
4453 | else if (current_architecture & m68020) | |
4454 | m68k_aout_machtype = 2; | |
4455 | else | |
4456 | m68k_aout_machtype = 2; | |
4457 | #endif | |
4458 | ||
4459 | /* Note which set of "movec" control registers is available. */ | |
4460 | select_control_regs (); | |
4461 | ||
4462 | if (cpu_of_arch (current_architecture) < m68020 | |
6da466c7 | 4463 | || arch_coldfire_p (current_architecture)) |
252b5132 RH |
4464 | md_relax_table[TAB (PCINDEX, BYTE)].rlx_more = 0; |
4465 | } | |
4466 | \f | |
4467 | /* This is called when a label is defined. */ | |
4468 | ||
4469 | void | |
4470 | m68k_frob_label (sym) | |
4471 | symbolS *sym; | |
4472 | { | |
4473 | struct label_line *n; | |
4474 | ||
4475 | n = (struct label_line *) xmalloc (sizeof *n); | |
4476 | n->next = labels; | |
4477 | n->label = sym; | |
4478 | as_where (&n->file, &n->line); | |
4479 | n->text = 0; | |
4480 | labels = n; | |
4481 | current_label = n; | |
4482 | } | |
4483 | ||
4484 | /* This is called when a value that is not an instruction is emitted. */ | |
4485 | ||
4486 | void | |
4487 | m68k_flush_pending_output () | |
4488 | { | |
4489 | current_label = NULL; | |
4490 | } | |
4491 | ||
4492 | /* This is called at the end of the assembly, when the final value of | |
4493 | the label is known. We warn if this is a text symbol aligned at an | |
4494 | odd location. */ | |
4495 | ||
4496 | void | |
4497 | m68k_frob_symbol (sym) | |
4498 | symbolS *sym; | |
4499 | { | |
4500 | if (S_GET_SEGMENT (sym) == reg_section | |
4501 | && (int) S_GET_VALUE (sym) < 0) | |
4502 | { | |
4503 | S_SET_SEGMENT (sym, absolute_section); | |
4504 | S_SET_VALUE (sym, ~(int)S_GET_VALUE (sym)); | |
4505 | } | |
4506 | else if ((S_GET_VALUE (sym) & 1) != 0) | |
4507 | { | |
4508 | struct label_line *l; | |
4509 | ||
4510 | for (l = labels; l != NULL; l = l->next) | |
4511 | { | |
4512 | if (l->label == sym) | |
4513 | { | |
4514 | if (l->text) | |
4515 | as_warn_where (l->file, l->line, | |
4516 | _("text label `%s' aligned to odd boundary"), | |
4517 | S_GET_NAME (sym)); | |
4518 | break; | |
4519 | } | |
4520 | } | |
4521 | } | |
4522 | } | |
4523 | \f | |
4524 | /* This is called if we go in or out of MRI mode because of the .mri | |
4525 | pseudo-op. */ | |
4526 | ||
4527 | void | |
4528 | m68k_mri_mode_change (on) | |
4529 | int on; | |
4530 | { | |
4531 | if (on) | |
4532 | { | |
4533 | if (! flag_reg_prefix_optional) | |
4534 | { | |
4535 | flag_reg_prefix_optional = 1; | |
4536 | #ifdef REGISTER_PREFIX | |
4537 | init_regtable (); | |
4538 | #endif | |
4539 | } | |
4540 | m68k_abspcadd = 1; | |
4541 | if (! m68k_rel32_from_cmdline) | |
4542 | m68k_rel32 = 0; | |
4543 | } | |
4544 | else | |
4545 | { | |
4546 | if (! reg_prefix_optional_seen) | |
4547 | { | |
4548 | #ifdef REGISTER_PREFIX_OPTIONAL | |
4549 | flag_reg_prefix_optional = REGISTER_PREFIX_OPTIONAL; | |
4550 | #else | |
4551 | flag_reg_prefix_optional = 0; | |
4552 | #endif | |
4553 | #ifdef REGISTER_PREFIX | |
4554 | init_regtable (); | |
4555 | #endif | |
4556 | } | |
4557 | m68k_abspcadd = 0; | |
4558 | if (! m68k_rel32_from_cmdline) | |
4559 | m68k_rel32 = 1; | |
4560 | } | |
4561 | } | |
4562 | ||
36759679 | 4563 | /* Equal to MAX_PRECISION in atof-ieee.c. */ |
252b5132 RH |
4564 | #define MAX_LITTLENUMS 6 |
4565 | ||
4566 | /* Turn a string in input_line_pointer into a floating point constant | |
bc0d738a NC |
4567 | of type TYPE, and store the appropriate bytes in *LITP. The number |
4568 | of LITTLENUMS emitted is stored in *SIZEP. An error message is | |
252b5132 RH |
4569 | returned, or NULL on OK. */ |
4570 | ||
4571 | char * | |
4572 | md_atof (type, litP, sizeP) | |
4573 | char type; | |
4574 | char *litP; | |
4575 | int *sizeP; | |
4576 | { | |
4577 | int prec; | |
4578 | LITTLENUM_TYPE words[MAX_LITTLENUMS]; | |
4579 | LITTLENUM_TYPE *wordP; | |
4580 | char *t; | |
4581 | ||
4582 | switch (type) | |
4583 | { | |
4584 | case 'f': | |
4585 | case 'F': | |
4586 | case 's': | |
4587 | case 'S': | |
4588 | prec = 2; | |
4589 | break; | |
4590 | ||
4591 | case 'd': | |
4592 | case 'D': | |
4593 | case 'r': | |
4594 | case 'R': | |
4595 | prec = 4; | |
4596 | break; | |
4597 | ||
4598 | case 'x': | |
4599 | case 'X': | |
4600 | prec = 6; | |
4601 | break; | |
4602 | ||
4603 | case 'p': | |
4604 | case 'P': | |
4605 | prec = 6; | |
4606 | break; | |
4607 | ||
4608 | default: | |
4609 | *sizeP = 0; | |
4610 | return _("Bad call to MD_ATOF()"); | |
4611 | } | |
4612 | t = atof_ieee (input_line_pointer, type, words); | |
4613 | if (t) | |
4614 | input_line_pointer = t; | |
4615 | ||
4616 | *sizeP = prec * sizeof (LITTLENUM_TYPE); | |
4617 | for (wordP = words; prec--;) | |
4618 | { | |
4619 | md_number_to_chars (litP, (long) (*wordP++), sizeof (LITTLENUM_TYPE)); | |
4620 | litP += sizeof (LITTLENUM_TYPE); | |
4621 | } | |
4622 | return 0; | |
4623 | } | |
4624 | ||
4625 | void | |
4626 | md_number_to_chars (buf, val, n) | |
4627 | char *buf; | |
4628 | valueT val; | |
4629 | int n; | |
4630 | { | |
4631 | number_to_chars_bigendian (buf, val, n); | |
4632 | } | |
4633 | ||
94f592af NC |
4634 | void |
4635 | md_apply_fix3 (fixP, valP, seg) | |
252b5132 | 4636 | fixS *fixP; |
bbe8ef22 | 4637 | valueT *valP; |
94f592af | 4638 | segT seg ATTRIBUTE_UNUSED; |
252b5132 | 4639 | { |
bbe8ef22 | 4640 | offsetT val = *valP; |
252b5132 RH |
4641 | addressT upper_limit; |
4642 | offsetT lower_limit; | |
4643 | ||
4644 | /* This is unnecessary but it convinces the native rs6000 compiler | |
4645 | to generate the code we want. */ | |
4646 | char *buf = fixP->fx_frag->fr_literal; | |
4647 | buf += fixP->fx_where; | |
36759679 | 4648 | /* End ibm compiler workaround. */ |
252b5132 | 4649 | |
c801568a | 4650 | val = ((val & 0xffffffff) ^ 0x80000000) - 0x80000000; |
252b5132 | 4651 | |
94f592af NC |
4652 | if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0) |
4653 | fixP->fx_done = 1; | |
4654 | ||
252b5132 RH |
4655 | #ifdef OBJ_ELF |
4656 | if (fixP->fx_addsy) | |
4657 | { | |
4658 | memset (buf, 0, fixP->fx_size); | |
36759679 | 4659 | fixP->fx_addnumber = val; /* Remember value for emit_reloc. */ |
252b5132 RH |
4660 | |
4661 | if (fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT | |
4662 | && !S_IS_DEFINED (fixP->fx_addsy) | |
4663 | && !S_IS_WEAK (fixP->fx_addsy)) | |
4664 | S_SET_WEAK (fixP->fx_addsy); | |
4665 | return; | |
4666 | } | |
4667 | #endif | |
4668 | ||
4669 | #ifdef BFD_ASSEMBLER | |
4670 | if (fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT | |
4671 | || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY) | |
4672 | return; | |
4673 | #endif | |
4674 | ||
4675 | switch (fixP->fx_size) | |
4676 | { | |
94f592af NC |
4677 | /* The cast to offsetT below are necessary to make code |
4678 | correct for machines where ints are smaller than offsetT. */ | |
252b5132 RH |
4679 | case 1: |
4680 | *buf++ = val; | |
4681 | upper_limit = 0x7f; | |
4682 | lower_limit = - (offsetT) 0x80; | |
4683 | break; | |
4684 | case 2: | |
4685 | *buf++ = (val >> 8); | |
4686 | *buf++ = val; | |
4687 | upper_limit = 0x7fff; | |
4688 | lower_limit = - (offsetT) 0x8000; | |
4689 | break; | |
4690 | case 4: | |
4691 | *buf++ = (val >> 24); | |
4692 | *buf++ = (val >> 16); | |
4693 | *buf++ = (val >> 8); | |
4694 | *buf++ = val; | |
4695 | upper_limit = 0x7fffffff; | |
36759679 | 4696 | lower_limit = - (offsetT) 0x7fffffff - 1; /* Avoid constant overflow. */ |
252b5132 RH |
4697 | break; |
4698 | default: | |
4699 | BAD_CASE (fixP->fx_size); | |
4700 | } | |
4701 | ||
4702 | /* Fix up a negative reloc. */ | |
4703 | if (fixP->fx_addsy == NULL && fixP->fx_subsy != NULL) | |
4704 | { | |
4705 | fixP->fx_addsy = fixP->fx_subsy; | |
4706 | fixP->fx_subsy = NULL; | |
4707 | fixP->fx_tcbit = 1; | |
4708 | } | |
4709 | ||
4710 | /* For non-pc-relative values, it's conceivable we might get something | |
4711 | like "0xff" for a byte field. So extend the upper part of the range | |
4712 | to accept such numbers. We arbitrarily disallow "-0xff" or "0xff+0xff", | |
4713 | so that we can do any range checking at all. */ | |
4714 | if (! fixP->fx_pcrel && ! fixP->fx_signed) | |
4715 | upper_limit = upper_limit * 2 + 1; | |
4716 | ||
4717 | if ((addressT) val > upper_limit | |
4718 | && (val > 0 || val < lower_limit)) | |
4719 | as_bad_where (fixP->fx_file, fixP->fx_line, _("value out of range")); | |
4720 | ||
4721 | /* A one byte PC-relative reloc means a short branch. We can't use | |
4722 | a short branch with a value of 0 or -1, because those indicate | |
4723 | different opcodes (branches with longer offsets). fixup_segment | |
4724 | in write.c may have clobbered fx_pcrel, so we need to examine the | |
4725 | reloc type. */ | |
4726 | if ((fixP->fx_pcrel | |
4727 | #ifdef BFD_ASSEMBLER | |
4728 | || fixP->fx_r_type == BFD_RELOC_8_PCREL | |
4729 | #endif | |
4730 | ) | |
4731 | && fixP->fx_size == 1 | |
4732 | && (fixP->fx_addsy == NULL | |
4733 | || S_IS_DEFINED (fixP->fx_addsy)) | |
4734 | && (val == 0 || val == -1)) | |
4735 | as_bad_where (fixP->fx_file, fixP->fx_line, _("invalid byte branch offset")); | |
4736 | } | |
4737 | ||
252b5132 RH |
4738 | /* *fragP has been relaxed to its final size, and now needs to have |
4739 | the bytes inside it modified to conform to the new size There is UGLY | |
4740 | MAGIC here. .. | |
4741 | */ | |
4742 | static void | |
4743 | md_convert_frag_1 (fragP) | |
4744 | register fragS *fragP; | |
4745 | { | |
4746 | long disp; | |
252b5132 RH |
4747 | fixS *fixP; |
4748 | ||
4749 | /* Address in object code of the displacement. */ | |
4750 | register int object_address = fragP->fr_fix + fragP->fr_address; | |
4751 | ||
4752 | /* Address in gas core of the place to store the displacement. */ | |
4753 | /* This convinces the native rs6000 compiler to generate the code we | |
92774660 | 4754 | want. */ |
252b5132 RH |
4755 | register char *buffer_address = fragP->fr_literal; |
4756 | buffer_address += fragP->fr_fix; | |
36759679 | 4757 | /* End ibm compiler workaround. */ |
252b5132 RH |
4758 | |
4759 | /* The displacement of the address, from current location. */ | |
4760 | disp = fragP->fr_symbol ? S_GET_VALUE (fragP->fr_symbol) : 0; | |
4761 | disp = (disp + fragP->fr_offset) - object_address; | |
4762 | ||
252b5132 RH |
4763 | switch (fragP->fr_subtype) |
4764 | { | |
151337e8 NC |
4765 | case TAB (BRANCHBWL, BYTE): |
4766 | case TAB (BRABSJUNC, BYTE): | |
4767 | case TAB (BRABSJCOND, BYTE): | |
4768 | case TAB (BRANCHBW, BYTE): | |
252b5132 RH |
4769 | know (issbyte (disp)); |
4770 | if (disp == 0) | |
b091f402 AM |
4771 | as_bad_where (fragP->fr_file, fragP->fr_line, |
4772 | _("short branch with zero offset: use :w")); | |
151337e8 | 4773 | fixP = fix_new (fragP, fragP->fr_fix - 1, 1, fragP->fr_symbol, |
5cbdaa77 | 4774 | fragP->fr_offset, 1, RELAX_RELOC_PC8); |
151337e8 | 4775 | fixP->fx_pcrel_adjust = -1; |
252b5132 | 4776 | break; |
151337e8 NC |
4777 | case TAB (BRANCHBWL, SHORT): |
4778 | case TAB (BRABSJUNC, SHORT): | |
4779 | case TAB (BRABSJCOND, SHORT): | |
4780 | case TAB (BRANCHBW, SHORT): | |
252b5132 | 4781 | fragP->fr_opcode[1] = 0x00; |
151337e8 | 4782 | fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol, fragP->fr_offset, |
5cbdaa77 | 4783 | 1, RELAX_RELOC_PC16); |
151337e8 NC |
4784 | fragP->fr_fix += 2; |
4785 | break; | |
4786 | case TAB (BRANCHBWL, LONG): | |
4787 | fragP->fr_opcode[1] = (char) 0xFF; | |
4788 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, fragP->fr_offset, | |
5cbdaa77 | 4789 | 1, RELAX_RELOC_PC32); |
151337e8 | 4790 | fragP->fr_fix += 4; |
252b5132 | 4791 | break; |
151337e8 NC |
4792 | case TAB (BRABSJUNC, LONG): |
4793 | if (fragP->fr_opcode[0] == 0x61) /* jbsr */ | |
252b5132 | 4794 | { |
36759679 | 4795 | if (flag_keep_pcrel) |
6b6e92f4 | 4796 | as_fatal (_("Tried to convert PC relative BSR to absolute JSR")); |
151337e8 | 4797 | fragP->fr_opcode[0] = 0x4E; |
36759679 | 4798 | fragP->fr_opcode[1] = (char) 0xB9; /* JSR with ABSL LONG operand. */ |
151337e8 | 4799 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, fragP->fr_offset, |
3ae647a0 | 4800 | 0, RELAX_RELOC_ABS32); |
151337e8 NC |
4801 | fragP->fr_fix += 4; |
4802 | } | |
4803 | else if (fragP->fr_opcode[0] == 0x60) /* jbra */ | |
4804 | { | |
36759679 | 4805 | if (flag_keep_pcrel) |
6b6e92f4 | 4806 | as_fatal (_("Tried to convert PC relative branch to absolute jump")); |
151337e8 | 4807 | fragP->fr_opcode[0] = 0x4E; |
36759679 | 4808 | fragP->fr_opcode[1] = (char) 0xF9; /* JMP with ABSL LONG operand. */ |
151337e8 | 4809 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, fragP->fr_offset, |
5cbdaa77 | 4810 | 0, RELAX_RELOC_ABS32); |
151337e8 | 4811 | fragP->fr_fix += 4; |
252b5132 RH |
4812 | } |
4813 | else | |
4814 | { | |
151337e8 NC |
4815 | /* This cannot happen, because jbsr and jbra are the only two |
4816 | unconditional branches. */ | |
4817 | abort (); | |
252b5132 RH |
4818 | } |
4819 | break; | |
151337e8 | 4820 | case TAB (BRABSJCOND, LONG): |
36759679 | 4821 | if (flag_keep_pcrel) |
6b6e92f4 | 4822 | as_fatal (_("Tried to convert PC relative conditional branch to absolute jump")); |
92774660 | 4823 | |
36759679 NC |
4824 | /* Only Bcc 68000 instructions can come here |
4825 | Change bcc into b!cc/jmp absl long. */ | |
4826 | fragP->fr_opcode[0] ^= 0x01; /* Invert bcc. */ | |
4827 | fragP->fr_opcode[1] = 0x06; /* Branch offset = 6. */ | |
252b5132 RH |
4828 | |
4829 | /* JF: these used to be fr_opcode[2,3], but they may be in a | |
67c1ffbe | 4830 | different frag, in which case referring to them is a no-no. |
92774660 | 4831 | Only fr_opcode[0,1] are guaranteed to work. */ |
252b5132 RH |
4832 | *buffer_address++ = 0x4e; /* put in jmp long (0x4ef9) */ |
4833 | *buffer_address++ = (char) 0xf9; | |
36759679 | 4834 | fragP->fr_fix += 2; /* Account for jmp instruction. */ |
252b5132 | 4835 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, |
5cbdaa77 | 4836 | fragP->fr_offset, 0, RELAX_RELOC_ABS32); |
151337e8 NC |
4837 | fragP->fr_fix += 4; |
4838 | break; | |
4839 | case TAB (FBRANCH, SHORT): | |
4840 | know ((fragP->fr_opcode[1] & 0x40) == 0); | |
4841 | fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol, fragP->fr_offset, | |
5cbdaa77 | 4842 | 1, RELAX_RELOC_PC16); |
151337e8 NC |
4843 | fragP->fr_fix += 2; |
4844 | break; | |
4845 | case TAB (FBRANCH, LONG): | |
36759679 | 4846 | fragP->fr_opcode[1] |= 0x40; /* Turn on LONG bit. */ |
151337e8 | 4847 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, fragP->fr_offset, |
5cbdaa77 | 4848 | 1, RELAX_RELOC_PC32); |
252b5132 | 4849 | fragP->fr_fix += 4; |
252b5132 | 4850 | break; |
151337e8 NC |
4851 | case TAB (DBCCLBR, SHORT): |
4852 | case TAB (DBCCABSJ, SHORT): | |
4853 | fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol, fragP->fr_offset, | |
5cbdaa77 | 4854 | 1, RELAX_RELOC_PC16); |
151337e8 NC |
4855 | fragP->fr_fix += 2; |
4856 | break; | |
4857 | case TAB (DBCCLBR, LONG): | |
36759679 NC |
4858 | /* Only DBcc instructions can come here. |
4859 | Change dbcc into dbcc/bral. | |
4860 | JF: these used to be fr_opcode[2-7], but that's wrong. */ | |
4861 | if (flag_keep_pcrel) | |
6b6e92f4 | 4862 | as_fatal (_("Tried to convert DBcc to absolute jump")); |
28e7409f | 4863 | |
36759679 | 4864 | *buffer_address++ = 0x00; /* Branch offset = 4. */ |
252b5132 | 4865 | *buffer_address++ = 0x04; |
36759679 | 4866 | *buffer_address++ = 0x60; /* Put in bra pc+6. */ |
252b5132 | 4867 | *buffer_address++ = 0x06; |
151337e8 NC |
4868 | *buffer_address++ = 0x60; /* Put in bral (0x60ff). */ |
4869 | *buffer_address++ = (char) 0xff; | |
252b5132 | 4870 | |
36759679 | 4871 | fragP->fr_fix += 6; /* Account for bra/jmp instructions. */ |
151337e8 | 4872 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, fragP->fr_offset, 1, |
5cbdaa77 | 4873 | RELAX_RELOC_PC32); |
252b5132 | 4874 | fragP->fr_fix += 4; |
252b5132 | 4875 | break; |
151337e8 | 4876 | case TAB (DBCCABSJ, LONG): |
36759679 NC |
4877 | /* Only DBcc instructions can come here. |
4878 | Change dbcc into dbcc/jmp. | |
4879 | JF: these used to be fr_opcode[2-7], but that's wrong. */ | |
4880 | if (flag_keep_pcrel) | |
6b6e92f4 | 4881 | as_fatal (_("Tried to convert PC relative conditional branch to absolute jump")); |
151337e8 | 4882 | |
36759679 | 4883 | *buffer_address++ = 0x00; /* Branch offset = 4. */ |
151337e8 | 4884 | *buffer_address++ = 0x04; |
36759679 | 4885 | *buffer_address++ = 0x60; /* Put in bra pc + 6. */ |
151337e8 | 4886 | *buffer_address++ = 0x06; |
36759679 | 4887 | *buffer_address++ = 0x4e; /* Put in jmp long (0x4ef9). */ |
151337e8 NC |
4888 | *buffer_address++ = (char) 0xf9; |
4889 | ||
36759679 | 4890 | fragP->fr_fix += 6; /* Account for bra/jmp instructions. */ |
151337e8 | 4891 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, fragP->fr_offset, 0, |
5cbdaa77 | 4892 | RELAX_RELOC_ABS32); |
252b5132 | 4893 | fragP->fr_fix += 4; |
252b5132 | 4894 | break; |
151337e8 | 4895 | case TAB (PCREL1632, SHORT): |
252b5132 RH |
4896 | fragP->fr_opcode[1] &= ~0x3F; |
4897 | fragP->fr_opcode[1] |= 0x3A; /* 072 - mode 7.2 */ | |
151337e8 | 4898 | fix_new (fragP, (int) (fragP->fr_fix), 2, fragP->fr_symbol, |
5cbdaa77 | 4899 | fragP->fr_offset, 1, RELAX_RELOC_PC16); |
151337e8 | 4900 | fragP->fr_fix += 2; |
252b5132 | 4901 | break; |
151337e8 | 4902 | case TAB (PCREL1632, LONG): |
252b5132 RH |
4903 | /* Already set to mode 7.3; this indicates: PC indirect with |
4904 | suppressed index, 32-bit displacement. */ | |
4905 | *buffer_address++ = 0x01; | |
4906 | *buffer_address++ = 0x70; | |
4907 | fragP->fr_fix += 2; | |
151337e8 | 4908 | fixP = fix_new (fragP, (int) (fragP->fr_fix), 4, fragP->fr_symbol, |
5cbdaa77 | 4909 | fragP->fr_offset, 1, RELAX_RELOC_PC32); |
151337e8 NC |
4910 | fixP->fx_pcrel_adjust = 2; |
4911 | fragP->fr_fix += 4; | |
252b5132 | 4912 | break; |
252b5132 | 4913 | case TAB (PCINDEX, BYTE): |
252b5132 RH |
4914 | assert (fragP->fr_fix >= 2); |
4915 | buffer_address[-2] &= ~1; | |
151337e8 | 4916 | fixP = fix_new (fragP, fragP->fr_fix - 1, 1, fragP->fr_symbol, |
5cbdaa77 | 4917 | fragP->fr_offset, 1, RELAX_RELOC_PC8); |
151337e8 | 4918 | fixP->fx_pcrel_adjust = 1; |
252b5132 RH |
4919 | break; |
4920 | case TAB (PCINDEX, SHORT): | |
252b5132 RH |
4921 | assert (fragP->fr_fix >= 2); |
4922 | buffer_address[-2] |= 0x1; | |
4923 | buffer_address[-1] = 0x20; | |
4924 | fixP = fix_new (fragP, (int) (fragP->fr_fix), 2, fragP->fr_symbol, | |
5cbdaa77 | 4925 | fragP->fr_offset, 1, RELAX_RELOC_PC16); |
252b5132 | 4926 | fixP->fx_pcrel_adjust = 2; |
151337e8 | 4927 | fragP->fr_fix += 2; |
252b5132 RH |
4928 | break; |
4929 | case TAB (PCINDEX, LONG): | |
252b5132 RH |
4930 | assert (fragP->fr_fix >= 2); |
4931 | buffer_address[-2] |= 0x1; | |
4932 | buffer_address[-1] = 0x30; | |
151337e8 | 4933 | fixP = fix_new (fragP, (int) (fragP->fr_fix), 4, fragP->fr_symbol, |
5cbdaa77 | 4934 | fragP->fr_offset, 1, RELAX_RELOC_PC32); |
151337e8 NC |
4935 | fixP->fx_pcrel_adjust = 2; |
4936 | fragP->fr_fix += 4; | |
4937 | break; | |
4938 | case TAB (ABSTOPCREL, SHORT): | |
4939 | fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol, fragP->fr_offset, | |
5cbdaa77 | 4940 | 1, RELAX_RELOC_PC16); |
151337e8 NC |
4941 | fragP->fr_fix += 2; |
4942 | break; | |
4943 | case TAB (ABSTOPCREL, LONG): | |
36759679 | 4944 | if (flag_keep_pcrel) |
6b6e92f4 | 4945 | as_fatal (_("Tried to convert PC relative conditional branch to absolute jump")); |
151337e8 | 4946 | /* The thing to do here is force it to ABSOLUTE LONG, since |
36759679 | 4947 | ABSTOPCREL is really trying to shorten an ABSOLUTE address anyway. */ |
151337e8 NC |
4948 | if ((fragP->fr_opcode[1] & 0x3F) != 0x3A) |
4949 | abort (); | |
4950 | fragP->fr_opcode[1] &= ~0x3F; | |
4951 | fragP->fr_opcode[1] |= 0x39; /* Mode 7.1 */ | |
4952 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, fragP->fr_offset, | |
5cbdaa77 | 4953 | 0, RELAX_RELOC_ABS32); |
151337e8 | 4954 | fragP->fr_fix += 4; |
252b5132 | 4955 | break; |
252b5132 RH |
4956 | } |
4957 | } | |
4958 | ||
4959 | #ifndef BFD_ASSEMBLER | |
4960 | ||
4961 | void | |
4962 | md_convert_frag (headers, sec, fragP) | |
8fce3f5e AM |
4963 | object_headers *headers ATTRIBUTE_UNUSED; |
4964 | segT sec ATTRIBUTE_UNUSED; | |
252b5132 RH |
4965 | fragS *fragP; |
4966 | { | |
4967 | md_convert_frag_1 (fragP); | |
4968 | } | |
4969 | ||
4970 | #else | |
4971 | ||
4972 | void | |
4973 | md_convert_frag (abfd, sec, fragP) | |
36823076 AS |
4974 | bfd *abfd ATTRIBUTE_UNUSED; |
4975 | segT sec ATTRIBUTE_UNUSED; | |
252b5132 RH |
4976 | fragS *fragP; |
4977 | { | |
4978 | md_convert_frag_1 (fragP); | |
4979 | } | |
4980 | #endif | |
4981 | ||
4982 | /* Force truly undefined symbols to their maximum size, and generally set up | |
4983 | the frag list to be relaxed | |
4984 | */ | |
4985 | int | |
4986 | md_estimate_size_before_relax (fragP, segment) | |
4987 | register fragS *fragP; | |
4988 | segT segment; | |
4989 | { | |
151337e8 | 4990 | /* Handle SZ_UNDEF first, it can be changed to BYTE or SHORT. */ |
252b5132 RH |
4991 | switch (fragP->fr_subtype) |
4992 | { | |
151337e8 NC |
4993 | case TAB (BRANCHBWL, SZ_UNDEF): |
4994 | case TAB (BRABSJUNC, SZ_UNDEF): | |
151337e8 | 4995 | case TAB (BRABSJCOND, SZ_UNDEF): |
252b5132 | 4996 | { |
151337e8 NC |
4997 | if (S_GET_SEGMENT (fragP->fr_symbol) == segment |
4998 | && relaxable_symbol (fragP->fr_symbol)) | |
252b5132 | 4999 | { |
151337e8 NC |
5000 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), BYTE); |
5001 | } | |
5002 | else if (flag_short_refs) | |
5003 | { | |
5004 | /* Symbol is undefined and we want short ref. */ | |
5005 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), SHORT); | |
252b5132 RH |
5006 | } |
5007 | else | |
5008 | { | |
151337e8 NC |
5009 | /* Symbol is still undefined. Make it LONG. */ |
5010 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), LONG); | |
252b5132 RH |
5011 | } |
5012 | break; | |
151337e8 | 5013 | } |
252b5132 | 5014 | |
151337e8 | 5015 | case TAB (BRANCHBW, SZ_UNDEF): |
252b5132 | 5016 | { |
151337e8 NC |
5017 | if (S_GET_SEGMENT (fragP->fr_symbol) == segment |
5018 | && relaxable_symbol (fragP->fr_symbol)) | |
252b5132 | 5019 | { |
151337e8 | 5020 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), BYTE); |
252b5132 RH |
5021 | } |
5022 | else | |
5023 | { | |
151337e8 NC |
5024 | /* Symbol is undefined and we don't have long branches. */ |
5025 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), SHORT); | |
252b5132 RH |
5026 | } |
5027 | break; | |
151337e8 | 5028 | } |
252b5132 | 5029 | |
151337e8 | 5030 | case TAB (FBRANCH, SZ_UNDEF): |
151337e8 NC |
5031 | case TAB (DBCCLBR, SZ_UNDEF): |
5032 | case TAB (DBCCABSJ, SZ_UNDEF): | |
5c65dbc1 | 5033 | case TAB (PCREL1632, SZ_UNDEF): |
252b5132 | 5034 | { |
8ec6253e NC |
5035 | if ((S_GET_SEGMENT (fragP->fr_symbol) == segment |
5036 | && relaxable_symbol (fragP->fr_symbol)) | |
151337e8 | 5037 | || flag_short_refs) |
252b5132 | 5038 | { |
151337e8 | 5039 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), SHORT); |
252b5132 RH |
5040 | } |
5041 | else | |
5042 | { | |
151337e8 | 5043 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), LONG); |
252b5132 RH |
5044 | } |
5045 | break; | |
151337e8 | 5046 | } |
81d4177b | 5047 | |
252b5132 RH |
5048 | case TAB (PCINDEX, SZ_UNDEF): |
5049 | if ((S_GET_SEGMENT (fragP->fr_symbol) == segment | |
151337e8 | 5050 | && relaxable_symbol (fragP->fr_symbol))) |
252b5132 RH |
5051 | { |
5052 | fragP->fr_subtype = TAB (PCINDEX, BYTE); | |
5053 | } | |
5054 | else | |
5055 | { | |
5056 | fragP->fr_subtype = TAB (PCINDEX, LONG); | |
252b5132 RH |
5057 | } |
5058 | break; | |
5059 | ||
151337e8 NC |
5060 | case TAB (ABSTOPCREL, SZ_UNDEF): |
5061 | { | |
5062 | if ((S_GET_SEGMENT (fragP->fr_symbol) == segment | |
5063 | && relaxable_symbol (fragP->fr_symbol))) | |
5064 | { | |
5065 | fragP->fr_subtype = TAB (ABSTOPCREL, SHORT); | |
151337e8 NC |
5066 | } |
5067 | else | |
5068 | { | |
5069 | fragP->fr_subtype = TAB (ABSTOPCREL, LONG); | |
151337e8 NC |
5070 | } |
5071 | break; | |
5072 | } | |
5073 | ||
252b5132 RH |
5074 | default: |
5075 | break; | |
5076 | } | |
5077 | ||
151337e8 | 5078 | /* Now that SZ_UNDEF are taken care of, check others. */ |
252b5132 RH |
5079 | switch (fragP->fr_subtype) |
5080 | { | |
151337e8 NC |
5081 | case TAB (BRANCHBWL, BYTE): |
5082 | case TAB (BRABSJUNC, BYTE): | |
5083 | case TAB (BRABSJCOND, BYTE): | |
5084 | case TAB (BRANCHBW, BYTE): | |
252b5132 | 5085 | /* We can't do a short jump to the next instruction, so in that |
ac62c346 AM |
5086 | case we force word mode. If the symbol is at the start of a |
5087 | frag, and it is the next frag with any data in it (usually | |
5088 | this is just the next frag, but assembler listings may | |
5089 | introduce empty frags), we must use word mode. */ | |
5090 | if (fragP->fr_symbol) | |
252b5132 | 5091 | { |
ac62c346 | 5092 | fragS *sym_frag; |
252b5132 | 5093 | |
ac62c346 AM |
5094 | sym_frag = symbol_get_frag (fragP->fr_symbol); |
5095 | if (S_GET_VALUE (fragP->fr_symbol) == sym_frag->fr_address) | |
252b5132 | 5096 | { |
ac62c346 AM |
5097 | fragS *l; |
5098 | ||
23b7f870 | 5099 | for (l = fragP->fr_next; l && l != sym_frag; l = l->fr_next) |
ac62c346 AM |
5100 | if (l->fr_fix != 0) |
5101 | break; | |
5102 | if (l == sym_frag) | |
5103 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), SHORT); | |
252b5132 RH |
5104 | } |
5105 | } | |
5106 | break; | |
5107 | default: | |
5108 | break; | |
5109 | } | |
ac62c346 | 5110 | return md_relax_table[fragP->fr_subtype].rlx_length; |
252b5132 RH |
5111 | } |
5112 | ||
5113 | #if defined(OBJ_AOUT) | defined(OBJ_BOUT) | |
5114 | /* the bit-field entries in the relocation_info struct plays hell | |
5115 | with the byte-order problems of cross-assembly. So as a hack, | |
5116 | I added this mach. dependent ri twiddler. Ugly, but it gets | |
36759679 | 5117 | you there. -KWK */ |
252b5132 RH |
5118 | /* on m68k: first 4 bytes are normal unsigned long, next three bytes |
5119 | are symbolnum, most sig. byte first. Last byte is broken up with | |
5120 | bit 7 as pcrel, bits 6 & 5 as length, bit 4 as pcrel, and the lower | |
5121 | nibble as nuthin. (on Sun 3 at least) */ | |
5122 | /* Translate the internal relocation information into target-specific | |
92774660 | 5123 | format. */ |
252b5132 RH |
5124 | #ifdef comment |
5125 | void | |
5126 | md_ri_to_chars (the_bytes, ri) | |
5127 | char *the_bytes; | |
5128 | struct reloc_info_generic *ri; | |
5129 | { | |
36759679 | 5130 | /* This is easy. */ |
252b5132 | 5131 | md_number_to_chars (the_bytes, ri->r_address, 4); |
36759679 | 5132 | /* Now the fun stuff. */ |
252b5132 | 5133 | the_bytes[4] = (ri->r_symbolnum >> 16) & 0x0ff; |
36759679 NC |
5134 | the_bytes[5] = (ri->r_symbolnum >> 8) & 0x0ff; |
5135 | the_bytes[6] = ri->r_symbolnum & 0x0ff; | |
252b5132 RH |
5136 | the_bytes[7] = (((ri->r_pcrel << 7) & 0x80) | ((ri->r_length << 5) & 0x60) | |
5137 | ((ri->r_extern << 4) & 0x10)); | |
5138 | } | |
5139 | ||
36759679 | 5140 | #endif |
252b5132 RH |
5141 | |
5142 | #ifndef BFD_ASSEMBLER | |
5143 | void | |
5144 | tc_aout_fix_to_chars (where, fixP, segment_address_in_file) | |
5145 | char *where; | |
5146 | fixS *fixP; | |
5147 | relax_addressT segment_address_in_file; | |
5148 | { | |
5149 | /* | |
5150 | * In: length of relocation (or of address) in chars: 1, 2 or 4. | |
5151 | * Out: GNU LD relocation length code: 0, 1, or 2. | |
5152 | */ | |
5153 | ||
5a38dc70 | 5154 | static const unsigned char nbytes_r_length[] = {42, 0, 1, 42, 2}; |
252b5132 RH |
5155 | long r_symbolnum; |
5156 | ||
5157 | know (fixP->fx_addsy != NULL); | |
5158 | ||
5159 | md_number_to_chars (where, | |
5160 | fixP->fx_frag->fr_address + fixP->fx_where - segment_address_in_file, | |
5161 | 4); | |
5162 | ||
5163 | r_symbolnum = (S_IS_DEFINED (fixP->fx_addsy) | |
5164 | ? S_GET_TYPE (fixP->fx_addsy) | |
5165 | : fixP->fx_addsy->sy_number); | |
5166 | ||
5167 | where[4] = (r_symbolnum >> 16) & 0x0ff; | |
5168 | where[5] = (r_symbolnum >> 8) & 0x0ff; | |
5169 | where[6] = r_symbolnum & 0x0ff; | |
5170 | where[7] = (((fixP->fx_pcrel << 7) & 0x80) | ((nbytes_r_length[fixP->fx_size] << 5) & 0x60) | | |
5171 | (((!S_IS_DEFINED (fixP->fx_addsy)) << 4) & 0x10)); | |
5172 | } | |
5173 | #endif | |
5174 | ||
5175 | #endif /* OBJ_AOUT or OBJ_BOUT */ | |
5176 | ||
5177 | #ifndef WORKING_DOT_WORD | |
5a38dc70 AM |
5178 | const int md_short_jump_size = 4; |
5179 | const int md_long_jump_size = 6; | |
252b5132 RH |
5180 | |
5181 | void | |
5182 | md_create_short_jump (ptr, from_addr, to_addr, frag, to_symbol) | |
5183 | char *ptr; | |
5184 | addressT from_addr, to_addr; | |
36823076 AS |
5185 | fragS *frag ATTRIBUTE_UNUSED; |
5186 | symbolS *to_symbol ATTRIBUTE_UNUSED; | |
252b5132 RH |
5187 | { |
5188 | valueT offset; | |
5189 | ||
5190 | offset = to_addr - (from_addr + 2); | |
5191 | ||
5192 | md_number_to_chars (ptr, (valueT) 0x6000, 2); | |
5193 | md_number_to_chars (ptr + 2, (valueT) offset, 2); | |
5194 | } | |
5195 | ||
5196 | void | |
5197 | md_create_long_jump (ptr, from_addr, to_addr, frag, to_symbol) | |
5198 | char *ptr; | |
5199 | addressT from_addr, to_addr; | |
5200 | fragS *frag; | |
5201 | symbolS *to_symbol; | |
5202 | { | |
5203 | valueT offset; | |
5204 | ||
6b6e92f4 | 5205 | if (!HAVE_LONG_BRANCH (current_architecture)) |
252b5132 | 5206 | { |
36759679 | 5207 | if (flag_keep_pcrel) |
6b6e92f4 | 5208 | as_fatal (_("Tried to convert PC relative branch to absolute jump")); |
252b5132 RH |
5209 | offset = to_addr - S_GET_VALUE (to_symbol); |
5210 | md_number_to_chars (ptr, (valueT) 0x4EF9, 2); | |
5211 | md_number_to_chars (ptr + 2, (valueT) offset, 4); | |
5212 | fix_new (frag, (ptr + 2) - frag->fr_literal, 4, to_symbol, (offsetT) 0, | |
5213 | 0, NO_RELOC); | |
5214 | } | |
5215 | else | |
5216 | { | |
5217 | offset = to_addr - (from_addr + 2); | |
5218 | md_number_to_chars (ptr, (valueT) 0x60ff, 2); | |
5219 | md_number_to_chars (ptr + 2, (valueT) offset, 4); | |
5220 | } | |
5221 | } | |
5222 | ||
5223 | #endif | |
5224 | ||
5225 | /* Different values of OK tell what its OK to return. Things that | |
5226 | aren't OK are an error (what a shock, no?) | |
5227 | ||
5228 | 0: Everything is OK | |
3e602632 NC |
5229 | 10: Absolute 1:8 only |
5230 | 20: Absolute 0:7 only | |
5231 | 30: absolute 0:15 only | |
5232 | 40: Absolute 0:31 only | |
5233 | 50: absolute 0:127 only | |
252b5132 | 5234 | 55: absolute -64:63 only |
3e602632 NC |
5235 | 60: absolute -128:127 only |
5236 | 70: absolute 0:4095 only | |
5237 | 80: absolute -1, 1:7 only | |
5238 | 90: No bignums. */ | |
252b5132 RH |
5239 | |
5240 | static int | |
5241 | get_num (exp, ok) | |
5242 | struct m68k_exp *exp; | |
5243 | int ok; | |
5244 | { | |
5245 | if (exp->exp.X_op == O_absent) | |
5246 | { | |
36759679 | 5247 | /* Do the same thing the VAX asm does. */ |
252b5132 RH |
5248 | op (exp) = O_constant; |
5249 | adds (exp) = 0; | |
5250 | subs (exp) = 0; | |
5251 | offs (exp) = 0; | |
5252 | if (ok == 10) | |
5253 | { | |
5254 | as_warn (_("expression out of range: defaulting to 1")); | |
5255 | offs (exp) = 1; | |
5256 | } | |
5257 | } | |
5258 | else if (exp->exp.X_op == O_constant) | |
5259 | { | |
5260 | switch (ok) | |
5261 | { | |
5262 | case 10: | |
5263 | if (offs (exp) < 1 || offs (exp) > 8) | |
5264 | { | |
5265 | as_warn (_("expression out of range: defaulting to 1")); | |
5266 | offs (exp) = 1; | |
5267 | } | |
5268 | break; | |
5269 | case 20: | |
5270 | if (offs (exp) < 0 || offs (exp) > 7) | |
5271 | goto outrange; | |
5272 | break; | |
5273 | case 30: | |
5274 | if (offs (exp) < 0 || offs (exp) > 15) | |
5275 | goto outrange; | |
5276 | break; | |
5277 | case 40: | |
5278 | if (offs (exp) < 0 || offs (exp) > 32) | |
5279 | goto outrange; | |
5280 | break; | |
5281 | case 50: | |
5282 | if (offs (exp) < 0 || offs (exp) > 127) | |
5283 | goto outrange; | |
5284 | break; | |
5285 | case 55: | |
5286 | if (offs (exp) < -64 || offs (exp) > 63) | |
5287 | goto outrange; | |
5288 | break; | |
5289 | case 60: | |
5290 | if (offs (exp) < -128 || offs (exp) > 127) | |
5291 | goto outrange; | |
5292 | break; | |
5293 | case 70: | |
5294 | if (offs (exp) < 0 || offs (exp) > 4095) | |
5295 | { | |
5296 | outrange: | |
5297 | as_warn (_("expression out of range: defaulting to 0")); | |
5298 | offs (exp) = 0; | |
5299 | } | |
5300 | break; | |
3e602632 NC |
5301 | case 80: |
5302 | if (offs (exp) < -1 | |
5303 | || offs (exp) > 7 | |
5304 | || offs (exp) == 0) | |
5305 | { | |
5306 | as_warn (_("expression out of range: defaulting to 1")); | |
5307 | offs (exp) = 1; | |
5308 | } | |
5309 | break; | |
252b5132 RH |
5310 | default: |
5311 | break; | |
5312 | } | |
5313 | } | |
5314 | else if (exp->exp.X_op == O_big) | |
5315 | { | |
36759679 | 5316 | if (offs (exp) <= 0 /* flonum. */ |
3e602632 | 5317 | && (ok == 90 /* no bignums */ |
36759679 | 5318 | || (ok > 10 /* Small-int ranges including 0 ok. */ |
252b5132 RH |
5319 | /* If we have a flonum zero, a zero integer should |
5320 | do as well (e.g., in moveq). */ | |
5321 | && generic_floating_point_number.exponent == 0 | |
5322 | && generic_floating_point_number.low[0] == 0))) | |
5323 | { | |
36759679 | 5324 | /* HACK! Turn it into a long. */ |
252b5132 RH |
5325 | LITTLENUM_TYPE words[6]; |
5326 | ||
36759679 | 5327 | gen_to_words (words, 2, 8L); /* These numbers are magic! */ |
252b5132 RH |
5328 | op (exp) = O_constant; |
5329 | adds (exp) = 0; | |
5330 | subs (exp) = 0; | |
5331 | offs (exp) = words[1] | (words[0] << 16); | |
5332 | } | |
5333 | else if (ok != 0) | |
5334 | { | |
5335 | op (exp) = O_constant; | |
5336 | adds (exp) = 0; | |
5337 | subs (exp) = 0; | |
5338 | offs (exp) = (ok == 10) ? 1 : 0; | |
5339 | as_warn (_("Can't deal with expression; defaulting to %ld"), | |
5340 | offs (exp)); | |
5341 | } | |
5342 | } | |
5343 | else | |
5344 | { | |
3e602632 | 5345 | if (ok >= 10 && ok <= 80) |
252b5132 RH |
5346 | { |
5347 | op (exp) = O_constant; | |
5348 | adds (exp) = 0; | |
5349 | subs (exp) = 0; | |
5350 | offs (exp) = (ok == 10) ? 1 : 0; | |
5351 | as_warn (_("Can't deal with expression; defaulting to %ld"), | |
5352 | offs (exp)); | |
5353 | } | |
5354 | } | |
5355 | ||
5356 | if (exp->size != SIZE_UNSPEC) | |
5357 | { | |
5358 | switch (exp->size) | |
5359 | { | |
5360 | case SIZE_UNSPEC: | |
5361 | case SIZE_LONG: | |
5362 | break; | |
5363 | case SIZE_BYTE: | |
5364 | if (!isbyte (offs (exp))) | |
5365 | as_warn (_("expression doesn't fit in BYTE")); | |
5366 | break; | |
5367 | case SIZE_WORD: | |
5368 | if (!isword (offs (exp))) | |
5369 | as_warn (_("expression doesn't fit in WORD")); | |
5370 | break; | |
5371 | } | |
5372 | } | |
5373 | ||
5374 | return offs (exp); | |
5375 | } | |
5376 | ||
5377 | /* These are the back-ends for the various machine dependent pseudo-ops. */ | |
5378 | ||
5379 | static void | |
5380 | s_data1 (ignore) | |
36823076 | 5381 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
5382 | { |
5383 | subseg_set (data_section, 1); | |
5384 | demand_empty_rest_of_line (); | |
5385 | } | |
5386 | ||
5387 | static void | |
5388 | s_data2 (ignore) | |
36823076 | 5389 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
5390 | { |
5391 | subseg_set (data_section, 2); | |
5392 | demand_empty_rest_of_line (); | |
5393 | } | |
5394 | ||
5395 | static void | |
5396 | s_bss (ignore) | |
36823076 | 5397 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
5398 | { |
5399 | /* We don't support putting frags in the BSS segment, we fake it | |
5400 | by marking in_bss, then looking at s_skip for clues. */ | |
5401 | ||
5402 | subseg_set (bss_section, 0); | |
5403 | demand_empty_rest_of_line (); | |
5404 | } | |
5405 | ||
5406 | static void | |
5407 | s_even (ignore) | |
36823076 | 5408 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
5409 | { |
5410 | register int temp; | |
5411 | register long temp_fill; | |
5412 | ||
5413 | temp = 1; /* JF should be 2? */ | |
5414 | temp_fill = get_absolute_expression (); | |
92774660 | 5415 | if (!need_pass_2) /* Never make frag if expect extra pass. */ |
252b5132 RH |
5416 | frag_align (temp, (int) temp_fill, 0); |
5417 | demand_empty_rest_of_line (); | |
5418 | record_alignment (now_seg, temp); | |
5419 | } | |
5420 | ||
5421 | static void | |
5422 | s_proc (ignore) | |
36823076 | 5423 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
5424 | { |
5425 | demand_empty_rest_of_line (); | |
5426 | } | |
5427 | \f | |
5428 | /* Pseudo-ops handled for MRI compatibility. */ | |
5429 | ||
5430 | /* This function returns non-zero if the argument is a conditional | |
5431 | pseudo-op. This is called when checking whether a pending | |
5432 | alignment is needed. */ | |
5433 | ||
5434 | int | |
5435 | m68k_conditional_pseudoop (pop) | |
5436 | pseudo_typeS *pop; | |
5437 | { | |
5438 | return (pop->poc_handler == s_mri_if | |
5439 | || pop->poc_handler == s_mri_else); | |
5440 | } | |
5441 | ||
5442 | /* Handle an MRI style chip specification. */ | |
5443 | ||
5444 | static void | |
5445 | mri_chip () | |
5446 | { | |
5447 | char *s; | |
5448 | char c; | |
5449 | int i; | |
5450 | ||
5451 | s = input_line_pointer; | |
5452 | /* We can't use get_symbol_end since the processor names are not proper | |
5453 | symbols. */ | |
5454 | while (is_part_of_name (c = *input_line_pointer++)) | |
5455 | ; | |
5456 | *--input_line_pointer = 0; | |
5457 | for (i = 0; i < n_archs; i++) | |
5458 | if (strcasecmp (s, archs[i].name) == 0) | |
5459 | break; | |
5460 | if (i >= n_archs) | |
5461 | { | |
5462 | as_bad (_("%s: unrecognized processor name"), s); | |
5463 | *input_line_pointer = c; | |
5464 | ignore_rest_of_line (); | |
5465 | return; | |
5466 | } | |
5467 | *input_line_pointer = c; | |
5468 | ||
5469 | if (*input_line_pointer == '/') | |
5470 | current_architecture = 0; | |
5471 | else | |
5472 | current_architecture &= m68881 | m68851; | |
5473 | current_architecture |= archs[i].arch; | |
990ae22a | 5474 | current_chip = archs[i].chip; |
252b5132 RH |
5475 | |
5476 | while (*input_line_pointer == '/') | |
5477 | { | |
5478 | ++input_line_pointer; | |
5479 | s = input_line_pointer; | |
5480 | /* We can't use get_symbol_end since the processor names are not | |
5481 | proper symbols. */ | |
5482 | while (is_part_of_name (c = *input_line_pointer++)) | |
5483 | ; | |
5484 | *--input_line_pointer = 0; | |
5485 | if (strcmp (s, "68881") == 0) | |
5486 | current_architecture |= m68881; | |
5487 | else if (strcmp (s, "68851") == 0) | |
5488 | current_architecture |= m68851; | |
5489 | *input_line_pointer = c; | |
5490 | } | |
5491 | ||
5492 | /* Update info about available control registers. */ | |
5493 | select_control_regs (); | |
5494 | } | |
5495 | ||
5496 | /* The MRI CHIP pseudo-op. */ | |
5497 | ||
5498 | static void | |
5499 | s_chip (ignore) | |
36823076 | 5500 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
5501 | { |
5502 | char *stop = NULL; | |
5503 | char stopc; | |
5504 | ||
5505 | if (flag_mri) | |
5506 | stop = mri_comment_field (&stopc); | |
5507 | mri_chip (); | |
5508 | if (flag_mri) | |
5509 | mri_comment_end (stop, stopc); | |
5510 | demand_empty_rest_of_line (); | |
5511 | } | |
5512 | ||
5513 | /* The MRI FOPT pseudo-op. */ | |
5514 | ||
5515 | static void | |
5516 | s_fopt (ignore) | |
36823076 | 5517 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
5518 | { |
5519 | SKIP_WHITESPACE (); | |
5520 | ||
5521 | if (strncasecmp (input_line_pointer, "ID=", 3) == 0) | |
5522 | { | |
5523 | int temp; | |
5524 | ||
5525 | input_line_pointer += 3; | |
5526 | temp = get_absolute_expression (); | |
5527 | if (temp < 0 || temp > 7) | |
5528 | as_bad (_("bad coprocessor id")); | |
5529 | else | |
5530 | m68k_float_copnum = COP0 + temp; | |
5531 | } | |
5532 | else | |
5533 | { | |
5534 | as_bad (_("unrecognized fopt option")); | |
5535 | ignore_rest_of_line (); | |
5536 | return; | |
5537 | } | |
5538 | ||
5539 | demand_empty_rest_of_line (); | |
5540 | } | |
5541 | ||
5542 | /* The structure used to handle the MRI OPT pseudo-op. */ | |
5543 | ||
5544 | struct opt_action | |
5545 | { | |
5546 | /* The name of the option. */ | |
5547 | const char *name; | |
5548 | ||
5549 | /* If this is not NULL, just call this function. The first argument | |
5550 | is the ARG field of this structure, the second argument is | |
5551 | whether the option was negated. */ | |
5552 | void (*pfn) PARAMS ((int arg, int on)); | |
5553 | ||
5554 | /* If this is not NULL, and the PFN field is NULL, set the variable | |
5555 | this points to. Set it to the ARG field if the option was not | |
5556 | negated, and the NOTARG field otherwise. */ | |
5557 | int *pvar; | |
5558 | ||
5559 | /* The value to pass to PFN or to assign to *PVAR. */ | |
5560 | int arg; | |
5561 | ||
5562 | /* The value to assign to *PVAR if the option is negated. If PFN is | |
5563 | NULL, and PVAR is not NULL, and ARG and NOTARG are the same, then | |
5564 | the option may not be negated. */ | |
5565 | int notarg; | |
5566 | }; | |
5567 | ||
5568 | /* The table used to handle the MRI OPT pseudo-op. */ | |
5569 | ||
5570 | static void skip_to_comma PARAMS ((int, int)); | |
5571 | static void opt_nest PARAMS ((int, int)); | |
5572 | static void opt_chip PARAMS ((int, int)); | |
5573 | static void opt_list PARAMS ((int, int)); | |
5574 | static void opt_list_symbols PARAMS ((int, int)); | |
5575 | ||
5576 | static const struct opt_action opt_table[] = | |
5577 | { | |
5578 | { "abspcadd", 0, &m68k_abspcadd, 1, 0 }, | |
5579 | ||
5580 | /* We do relaxing, so there is little use for these options. */ | |
5581 | { "b", 0, 0, 0, 0 }, | |
5582 | { "brs", 0, 0, 0, 0 }, | |
5583 | { "brb", 0, 0, 0, 0 }, | |
5584 | { "brl", 0, 0, 0, 0 }, | |
5585 | { "brw", 0, 0, 0, 0 }, | |
5586 | ||
5587 | { "c", 0, 0, 0, 0 }, | |
5588 | { "cex", 0, 0, 0, 0 }, | |
5589 | { "case", 0, &symbols_case_sensitive, 1, 0 }, | |
5590 | { "cl", 0, 0, 0, 0 }, | |
5591 | { "cre", 0, 0, 0, 0 }, | |
5592 | { "d", 0, &flag_keep_locals, 1, 0 }, | |
5593 | { "e", 0, 0, 0, 0 }, | |
5594 | { "f", 0, &flag_short_refs, 1, 0 }, | |
5595 | { "frs", 0, &flag_short_refs, 1, 0 }, | |
5596 | { "frl", 0, &flag_short_refs, 0, 1 }, | |
5597 | { "g", 0, 0, 0, 0 }, | |
5598 | { "i", 0, 0, 0, 0 }, | |
5599 | { "m", 0, 0, 0, 0 }, | |
5600 | { "mex", 0, 0, 0, 0 }, | |
5601 | { "mc", 0, 0, 0, 0 }, | |
5602 | { "md", 0, 0, 0, 0 }, | |
5603 | { "nest", opt_nest, 0, 0, 0 }, | |
5604 | { "next", skip_to_comma, 0, 0, 0 }, | |
5605 | { "o", 0, 0, 0, 0 }, | |
5606 | { "old", 0, 0, 0, 0 }, | |
5607 | { "op", skip_to_comma, 0, 0, 0 }, | |
5608 | { "pco", 0, 0, 0, 0 }, | |
5609 | { "p", opt_chip, 0, 0, 0 }, | |
5610 | { "pcr", 0, 0, 0, 0 }, | |
5611 | { "pcs", 0, 0, 0, 0 }, | |
5612 | { "r", 0, 0, 0, 0 }, | |
5613 | { "quick", 0, &m68k_quick, 1, 0 }, | |
5614 | { "rel32", 0, &m68k_rel32, 1, 0 }, | |
5615 | { "s", opt_list, 0, 0, 0 }, | |
5616 | { "t", opt_list_symbols, 0, 0, 0 }, | |
5617 | { "w", 0, &flag_no_warnings, 0, 1 }, | |
5618 | { "x", 0, 0, 0, 0 } | |
5619 | }; | |
5620 | ||
8fce3f5e | 5621 | #define OPTCOUNT ((int) (sizeof opt_table / sizeof opt_table[0])) |
252b5132 RH |
5622 | |
5623 | /* The MRI OPT pseudo-op. */ | |
5624 | ||
5625 | static void | |
5626 | s_opt (ignore) | |
36823076 | 5627 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
5628 | { |
5629 | do | |
5630 | { | |
5631 | int t; | |
5632 | char *s; | |
5633 | char c; | |
5634 | int i; | |
5635 | const struct opt_action *o; | |
5636 | ||
5637 | SKIP_WHITESPACE (); | |
5638 | ||
5639 | t = 1; | |
5640 | if (*input_line_pointer == '-') | |
5641 | { | |
5642 | ++input_line_pointer; | |
5643 | t = 0; | |
5644 | } | |
5645 | else if (strncasecmp (input_line_pointer, "NO", 2) == 0) | |
5646 | { | |
5647 | input_line_pointer += 2; | |
5648 | t = 0; | |
5649 | } | |
5650 | ||
5651 | s = input_line_pointer; | |
5652 | c = get_symbol_end (); | |
5653 | ||
5654 | for (i = 0, o = opt_table; i < OPTCOUNT; i++, o++) | |
5655 | { | |
5656 | if (strcasecmp (s, o->name) == 0) | |
5657 | { | |
5658 | if (o->pfn) | |
5659 | { | |
5660 | /* Restore input_line_pointer now in case the option | |
5661 | takes arguments. */ | |
5662 | *input_line_pointer = c; | |
5663 | (*o->pfn) (o->arg, t); | |
5664 | } | |
5665 | else if (o->pvar != NULL) | |
5666 | { | |
5667 | if (! t && o->arg == o->notarg) | |
5668 | as_bad (_("option `%s' may not be negated"), s); | |
5669 | *input_line_pointer = c; | |
5670 | *o->pvar = t ? o->arg : o->notarg; | |
5671 | } | |
5672 | else | |
5673 | *input_line_pointer = c; | |
5674 | break; | |
5675 | } | |
5676 | } | |
5677 | if (i >= OPTCOUNT) | |
5678 | { | |
5679 | as_bad (_("option `%s' not recognized"), s); | |
5680 | *input_line_pointer = c; | |
5681 | } | |
5682 | } | |
5683 | while (*input_line_pointer++ == ','); | |
5684 | ||
5685 | /* Move back to terminating character. */ | |
5686 | --input_line_pointer; | |
5687 | demand_empty_rest_of_line (); | |
5688 | } | |
5689 | ||
5690 | /* Skip ahead to a comma. This is used for OPT options which we do | |
67c1ffbe | 5691 | not support and which take arguments. */ |
252b5132 RH |
5692 | |
5693 | static void | |
5694 | skip_to_comma (arg, on) | |
36823076 AS |
5695 | int arg ATTRIBUTE_UNUSED; |
5696 | int on ATTRIBUTE_UNUSED; | |
252b5132 RH |
5697 | { |
5698 | while (*input_line_pointer != ',' | |
5699 | && ! is_end_of_line[(unsigned char) *input_line_pointer]) | |
5700 | ++input_line_pointer; | |
5701 | } | |
5702 | ||
5703 | /* Handle the OPT NEST=depth option. */ | |
5704 | ||
5705 | static void | |
5706 | opt_nest (arg, on) | |
36823076 AS |
5707 | int arg ATTRIBUTE_UNUSED; |
5708 | int on ATTRIBUTE_UNUSED; | |
252b5132 RH |
5709 | { |
5710 | if (*input_line_pointer != '=') | |
5711 | { | |
5712 | as_bad (_("bad format of OPT NEST=depth")); | |
5713 | return; | |
5714 | } | |
5715 | ||
5716 | ++input_line_pointer; | |
5717 | max_macro_nest = get_absolute_expression (); | |
5718 | } | |
5719 | ||
5720 | /* Handle the OPT P=chip option. */ | |
5721 | ||
5722 | static void | |
5723 | opt_chip (arg, on) | |
36823076 AS |
5724 | int arg ATTRIBUTE_UNUSED; |
5725 | int on ATTRIBUTE_UNUSED; | |
252b5132 RH |
5726 | { |
5727 | if (*input_line_pointer != '=') | |
5728 | { | |
5729 | /* This is just OPT P, which we do not support. */ | |
5730 | return; | |
5731 | } | |
5732 | ||
5733 | ++input_line_pointer; | |
5734 | mri_chip (); | |
5735 | } | |
5736 | ||
5737 | /* Handle the OPT S option. */ | |
5738 | ||
5739 | static void | |
5740 | opt_list (arg, on) | |
36823076 | 5741 | int arg ATTRIBUTE_UNUSED; |
252b5132 RH |
5742 | int on; |
5743 | { | |
5744 | listing_list (on); | |
5745 | } | |
5746 | ||
5747 | /* Handle the OPT T option. */ | |
5748 | ||
5749 | static void | |
5750 | opt_list_symbols (arg, on) | |
36823076 | 5751 | int arg ATTRIBUTE_UNUSED; |
252b5132 RH |
5752 | int on; |
5753 | { | |
5754 | if (on) | |
5755 | listing |= LISTING_SYMBOLS; | |
5756 | else | |
8a104df9 | 5757 | listing &= ~LISTING_SYMBOLS; |
252b5132 RH |
5758 | } |
5759 | ||
5760 | /* Handle the MRI REG pseudo-op. */ | |
5761 | ||
5762 | static void | |
5763 | s_reg (ignore) | |
36823076 | 5764 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
5765 | { |
5766 | char *s; | |
5767 | int c; | |
5768 | struct m68k_op rop; | |
5769 | int mask; | |
5770 | char *stop = NULL; | |
5771 | char stopc; | |
5772 | ||
5773 | if (line_label == NULL) | |
5774 | { | |
5775 | as_bad (_("missing label")); | |
5776 | ignore_rest_of_line (); | |
5777 | return; | |
5778 | } | |
5779 | ||
5780 | if (flag_mri) | |
5781 | stop = mri_comment_field (&stopc); | |
5782 | ||
5783 | SKIP_WHITESPACE (); | |
5784 | ||
5785 | s = input_line_pointer; | |
3882b010 | 5786 | while (ISALNUM (*input_line_pointer) |
252b5132 RH |
5787 | #ifdef REGISTER_PREFIX |
5788 | || *input_line_pointer == REGISTER_PREFIX | |
5789 | #endif | |
5790 | || *input_line_pointer == '/' | |
5791 | || *input_line_pointer == '-') | |
5792 | ++input_line_pointer; | |
5793 | c = *input_line_pointer; | |
5794 | *input_line_pointer = '\0'; | |
5795 | ||
5796 | if (m68k_ip_op (s, &rop) != 0) | |
5797 | { | |
5798 | if (rop.error == NULL) | |
5799 | as_bad (_("bad register list")); | |
5800 | else | |
5801 | as_bad (_("bad register list: %s"), rop.error); | |
5802 | *input_line_pointer = c; | |
5803 | ignore_rest_of_line (); | |
5804 | return; | |
5805 | } | |
5806 | ||
5807 | *input_line_pointer = c; | |
5808 | ||
5809 | if (rop.mode == REGLST) | |
5810 | mask = rop.mask; | |
5811 | else if (rop.mode == DREG) | |
5812 | mask = 1 << (rop.reg - DATA0); | |
5813 | else if (rop.mode == AREG) | |
5814 | mask = 1 << (rop.reg - ADDR0 + 8); | |
5815 | else if (rop.mode == FPREG) | |
5816 | mask = 1 << (rop.reg - FP0 + 16); | |
5817 | else if (rop.mode == CONTROL | |
5818 | && rop.reg == FPI) | |
5819 | mask = 1 << 24; | |
5820 | else if (rop.mode == CONTROL | |
5821 | && rop.reg == FPS) | |
5822 | mask = 1 << 25; | |
5823 | else if (rop.mode == CONTROL | |
5824 | && rop.reg == FPC) | |
5825 | mask = 1 << 26; | |
5826 | else | |
5827 | { | |
5828 | as_bad (_("bad register list")); | |
5829 | ignore_rest_of_line (); | |
5830 | return; | |
5831 | } | |
5832 | ||
5833 | S_SET_SEGMENT (line_label, reg_section); | |
5834 | S_SET_VALUE (line_label, ~mask); | |
49309057 | 5835 | symbol_set_frag (line_label, &zero_address_frag); |
252b5132 RH |
5836 | |
5837 | if (flag_mri) | |
5838 | mri_comment_end (stop, stopc); | |
5839 | ||
5840 | demand_empty_rest_of_line (); | |
5841 | } | |
5842 | ||
5843 | /* This structure is used for the MRI SAVE and RESTORE pseudo-ops. */ | |
5844 | ||
5845 | struct save_opts | |
5846 | { | |
5847 | struct save_opts *next; | |
5848 | int abspcadd; | |
5849 | int symbols_case_sensitive; | |
5850 | int keep_locals; | |
5851 | int short_refs; | |
5852 | int architecture; | |
6b6e92f4 | 5853 | int chip; |
252b5132 RH |
5854 | int quick; |
5855 | int rel32; | |
5856 | int listing; | |
5857 | int no_warnings; | |
5858 | /* FIXME: We don't save OPT S. */ | |
5859 | }; | |
5860 | ||
5861 | /* This variable holds the stack of saved options. */ | |
5862 | ||
5863 | static struct save_opts *save_stack; | |
5864 | ||
5865 | /* The MRI SAVE pseudo-op. */ | |
5866 | ||
5867 | static void | |
5868 | s_save (ignore) | |
36823076 | 5869 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
5870 | { |
5871 | struct save_opts *s; | |
5872 | ||
5873 | s = (struct save_opts *) xmalloc (sizeof (struct save_opts)); | |
5874 | s->abspcadd = m68k_abspcadd; | |
5875 | s->symbols_case_sensitive = symbols_case_sensitive; | |
5876 | s->keep_locals = flag_keep_locals; | |
5877 | s->short_refs = flag_short_refs; | |
5878 | s->architecture = current_architecture; | |
6b6e92f4 | 5879 | s->chip = current_chip; |
252b5132 RH |
5880 | s->quick = m68k_quick; |
5881 | s->rel32 = m68k_rel32; | |
5882 | s->listing = listing; | |
5883 | s->no_warnings = flag_no_warnings; | |
5884 | ||
5885 | s->next = save_stack; | |
5886 | save_stack = s; | |
5887 | ||
5888 | demand_empty_rest_of_line (); | |
5889 | } | |
5890 | ||
5891 | /* The MRI RESTORE pseudo-op. */ | |
5892 | ||
5893 | static void | |
5894 | s_restore (ignore) | |
36823076 | 5895 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
5896 | { |
5897 | struct save_opts *s; | |
5898 | ||
5899 | if (save_stack == NULL) | |
5900 | { | |
5901 | as_bad (_("restore without save")); | |
5902 | ignore_rest_of_line (); | |
5903 | return; | |
5904 | } | |
5905 | ||
5906 | s = save_stack; | |
5907 | save_stack = s->next; | |
5908 | ||
5909 | m68k_abspcadd = s->abspcadd; | |
5910 | symbols_case_sensitive = s->symbols_case_sensitive; | |
5911 | flag_keep_locals = s->keep_locals; | |
5912 | flag_short_refs = s->short_refs; | |
5913 | current_architecture = s->architecture; | |
6b6e92f4 | 5914 | current_chip = s->chip; |
252b5132 RH |
5915 | m68k_quick = s->quick; |
5916 | m68k_rel32 = s->rel32; | |
5917 | listing = s->listing; | |
5918 | flag_no_warnings = s->no_warnings; | |
5919 | ||
5920 | free (s); | |
5921 | ||
5922 | demand_empty_rest_of_line (); | |
5923 | } | |
5924 | ||
5925 | /* Types of MRI structured control directives. */ | |
5926 | ||
5927 | enum mri_control_type | |
5928 | { | |
5929 | mri_for, | |
5930 | mri_if, | |
5931 | mri_repeat, | |
5932 | mri_while | |
5933 | }; | |
5934 | ||
5935 | /* This structure is used to stack the MRI structured control | |
5936 | directives. */ | |
5937 | ||
5938 | struct mri_control_info | |
5939 | { | |
5940 | /* The directive within which this one is enclosed. */ | |
5941 | struct mri_control_info *outer; | |
5942 | ||
5943 | /* The type of directive. */ | |
5944 | enum mri_control_type type; | |
5945 | ||
5946 | /* Whether an ELSE has been in an IF. */ | |
5947 | int else_seen; | |
5948 | ||
5949 | /* The add or sub statement at the end of a FOR. */ | |
5950 | char *incr; | |
5951 | ||
5952 | /* The label of the top of a FOR or REPEAT loop. */ | |
5953 | char *top; | |
5954 | ||
5955 | /* The label to jump to for the next iteration, or the else | |
5956 | expression of a conditional. */ | |
5957 | char *next; | |
5958 | ||
5959 | /* The label to jump to to break out of the loop, or the label past | |
5960 | the end of a conditional. */ | |
5961 | char *bottom; | |
5962 | }; | |
5963 | ||
5964 | /* The stack of MRI structured control directives. */ | |
5965 | ||
5966 | static struct mri_control_info *mri_control_stack; | |
5967 | ||
5968 | /* The current MRI structured control directive index number, used to | |
5969 | generate label names. */ | |
5970 | ||
5971 | static int mri_control_index; | |
5972 | ||
5973 | /* Some function prototypes. */ | |
5974 | ||
5975 | static void mri_assemble PARAMS ((char *)); | |
5976 | static char *mri_control_label PARAMS ((void)); | |
5977 | static struct mri_control_info *push_mri_control | |
5978 | PARAMS ((enum mri_control_type)); | |
5979 | static void pop_mri_control PARAMS ((void)); | |
5980 | static int parse_mri_condition PARAMS ((int *)); | |
5981 | static int parse_mri_control_operand | |
5982 | PARAMS ((int *, char **, char **, char **, char **)); | |
5983 | static int swap_mri_condition PARAMS ((int)); | |
5984 | static int reverse_mri_condition PARAMS ((int)); | |
5985 | static void build_mri_control_operand | |
5986 | PARAMS ((int, int, char *, char *, char *, char *, const char *, | |
5987 | const char *, int)); | |
5988 | static void parse_mri_control_expression | |
5989 | PARAMS ((char *, int, const char *, const char *, int)); | |
5990 | ||
5991 | /* Assemble an instruction for an MRI structured control directive. */ | |
5992 | ||
5993 | static void | |
5994 | mri_assemble (str) | |
5995 | char *str; | |
5996 | { | |
5997 | char *s; | |
5998 | ||
5999 | /* md_assemble expects the opcode to be in lower case. */ | |
6000 | for (s = str; *s != ' ' && *s != '\0'; s++) | |
3882b010 | 6001 | *s = TOLOWER (*s); |
252b5132 RH |
6002 | |
6003 | md_assemble (str); | |
6004 | } | |
6005 | ||
6006 | /* Generate a new MRI label structured control directive label name. */ | |
6007 | ||
6008 | static char * | |
6009 | mri_control_label () | |
6010 | { | |
6011 | char *n; | |
6012 | ||
6013 | n = (char *) xmalloc (20); | |
6014 | sprintf (n, "%smc%d", FAKE_LABEL_NAME, mri_control_index); | |
6015 | ++mri_control_index; | |
6016 | return n; | |
6017 | } | |
6018 | ||
6019 | /* Create a new MRI structured control directive. */ | |
6020 | ||
6021 | static struct mri_control_info * | |
6022 | push_mri_control (type) | |
6023 | enum mri_control_type type; | |
6024 | { | |
6025 | struct mri_control_info *n; | |
6026 | ||
6027 | n = (struct mri_control_info *) xmalloc (sizeof (struct mri_control_info)); | |
6028 | ||
6029 | n->type = type; | |
6030 | n->else_seen = 0; | |
6031 | if (type == mri_if || type == mri_while) | |
6032 | n->top = NULL; | |
6033 | else | |
6034 | n->top = mri_control_label (); | |
6035 | n->next = mri_control_label (); | |
6036 | n->bottom = mri_control_label (); | |
6037 | ||
6038 | n->outer = mri_control_stack; | |
6039 | mri_control_stack = n; | |
6040 | ||
6041 | return n; | |
6042 | } | |
6043 | ||
6044 | /* Pop off the stack of MRI structured control directives. */ | |
6045 | ||
6046 | static void | |
6047 | pop_mri_control () | |
6048 | { | |
6049 | struct mri_control_info *n; | |
6050 | ||
6051 | n = mri_control_stack; | |
6052 | mri_control_stack = n->outer; | |
6053 | if (n->top != NULL) | |
6054 | free (n->top); | |
6055 | free (n->next); | |
6056 | free (n->bottom); | |
6057 | free (n); | |
6058 | } | |
6059 | ||
6060 | /* Recognize a condition code in an MRI structured control expression. */ | |
6061 | ||
6062 | static int | |
6063 | parse_mri_condition (pcc) | |
6064 | int *pcc; | |
6065 | { | |
6066 | char c1, c2; | |
6067 | ||
6068 | know (*input_line_pointer == '<'); | |
6069 | ||
6070 | ++input_line_pointer; | |
6071 | c1 = *input_line_pointer++; | |
6072 | c2 = *input_line_pointer++; | |
6073 | ||
6074 | if (*input_line_pointer != '>') | |
6075 | { | |
6076 | as_bad (_("syntax error in structured control directive")); | |
6077 | return 0; | |
6078 | } | |
6079 | ||
6080 | ++input_line_pointer; | |
6081 | SKIP_WHITESPACE (); | |
6082 | ||
3882b010 L |
6083 | c1 = TOLOWER (c1); |
6084 | c2 = TOLOWER (c2); | |
252b5132 RH |
6085 | |
6086 | *pcc = (c1 << 8) | c2; | |
6087 | ||
6088 | return 1; | |
6089 | } | |
6090 | ||
6091 | /* Parse a single operand in an MRI structured control expression. */ | |
6092 | ||
6093 | static int | |
6094 | parse_mri_control_operand (pcc, leftstart, leftstop, rightstart, rightstop) | |
6095 | int *pcc; | |
6096 | char **leftstart; | |
6097 | char **leftstop; | |
6098 | char **rightstart; | |
6099 | char **rightstop; | |
6100 | { | |
6101 | char *s; | |
6102 | ||
6103 | SKIP_WHITESPACE (); | |
6104 | ||
6105 | *pcc = -1; | |
6106 | *leftstart = NULL; | |
6107 | *leftstop = NULL; | |
6108 | *rightstart = NULL; | |
6109 | *rightstop = NULL; | |
6110 | ||
6111 | if (*input_line_pointer == '<') | |
6112 | { | |
6113 | /* It's just a condition code. */ | |
6114 | return parse_mri_condition (pcc); | |
6115 | } | |
6116 | ||
6117 | /* Look ahead for the condition code. */ | |
6118 | for (s = input_line_pointer; *s != '\0'; ++s) | |
6119 | { | |
6120 | if (*s == '<' && s[1] != '\0' && s[2] != '\0' && s[3] == '>') | |
6121 | break; | |
6122 | } | |
6123 | if (*s == '\0') | |
6124 | { | |
6125 | as_bad (_("missing condition code in structured control directive")); | |
6126 | return 0; | |
6127 | } | |
6128 | ||
6129 | *leftstart = input_line_pointer; | |
6130 | *leftstop = s; | |
6131 | if (*leftstop > *leftstart | |
6132 | && ((*leftstop)[-1] == ' ' || (*leftstop)[-1] == '\t')) | |
6133 | --*leftstop; | |
6134 | ||
6135 | input_line_pointer = s; | |
6136 | if (! parse_mri_condition (pcc)) | |
6137 | return 0; | |
6138 | ||
6139 | /* Look ahead for AND or OR or end of line. */ | |
6140 | for (s = input_line_pointer; *s != '\0'; ++s) | |
6141 | { | |
e1f44d10 NC |
6142 | /* We must make sure we don't misinterpret AND/OR at the end of labels! |
6143 | if d0 <eq> #FOOAND and d1 <ne> #BAROR then | |
6144 | ^^^ ^^ */ | |
8a104df9 KH |
6145 | if ((s == input_line_pointer |
6146 | || *(s-1) == ' ' | |
6147 | || *(s-1) == '\t') | |
6148 | && ((strncasecmp (s, "AND", 3) == 0 | |
6149 | && (s[3] == '.' || ! is_part_of_name (s[3]))) | |
6150 | || (strncasecmp (s, "OR", 2) == 0 | |
6151 | && (s[2] == '.' || ! is_part_of_name (s[2]))))) | |
6152 | break; | |
252b5132 RH |
6153 | } |
6154 | ||
6155 | *rightstart = input_line_pointer; | |
6156 | *rightstop = s; | |
6157 | if (*rightstop > *rightstart | |
6158 | && ((*rightstop)[-1] == ' ' || (*rightstop)[-1] == '\t')) | |
6159 | --*rightstop; | |
6160 | ||
6161 | input_line_pointer = s; | |
6162 | ||
6163 | return 1; | |
6164 | } | |
6165 | ||
6166 | #define MCC(b1, b2) (((b1) << 8) | (b2)) | |
6167 | ||
6168 | /* Swap the sense of a condition. This changes the condition so that | |
6169 | it generates the same result when the operands are swapped. */ | |
6170 | ||
6171 | static int | |
6172 | swap_mri_condition (cc) | |
6173 | int cc; | |
6174 | { | |
6175 | switch (cc) | |
6176 | { | |
6177 | case MCC ('h', 'i'): return MCC ('c', 's'); | |
6178 | case MCC ('l', 's'): return MCC ('c', 'c'); | |
36759679 | 6179 | /* <HS> is an alias for <CC>. */ |
e1f44d10 | 6180 | case MCC ('h', 's'): |
252b5132 | 6181 | case MCC ('c', 'c'): return MCC ('l', 's'); |
36759679 | 6182 | /* <LO> is an alias for <CS>. */ |
e1f44d10 | 6183 | case MCC ('l', 'o'): |
252b5132 RH |
6184 | case MCC ('c', 's'): return MCC ('h', 'i'); |
6185 | case MCC ('p', 'l'): return MCC ('m', 'i'); | |
6186 | case MCC ('m', 'i'): return MCC ('p', 'l'); | |
6187 | case MCC ('g', 'e'): return MCC ('l', 'e'); | |
6188 | case MCC ('l', 't'): return MCC ('g', 't'); | |
6189 | case MCC ('g', 't'): return MCC ('l', 't'); | |
6190 | case MCC ('l', 'e'): return MCC ('g', 'e'); | |
36759679 | 6191 | /* Issue a warning for conditions we can not swap. */ |
e1f44d10 NC |
6192 | case MCC ('n', 'e'): return MCC ('n', 'e'); // no problem here |
6193 | case MCC ('e', 'q'): return MCC ('e', 'q'); // also no problem | |
6194 | case MCC ('v', 'c'): | |
6195 | case MCC ('v', 's'): | |
6196 | default : | |
6197 | as_warn (_("Condition <%c%c> in structured control directive can not be encoded correctly"), | |
6198 | (char) (cc >> 8), (char) (cc)); | |
6199 | break; | |
252b5132 RH |
6200 | } |
6201 | return cc; | |
6202 | } | |
6203 | ||
6204 | /* Reverse the sense of a condition. */ | |
6205 | ||
6206 | static int | |
6207 | reverse_mri_condition (cc) | |
6208 | int cc; | |
6209 | { | |
6210 | switch (cc) | |
6211 | { | |
6212 | case MCC ('h', 'i'): return MCC ('l', 's'); | |
6213 | case MCC ('l', 's'): return MCC ('h', 'i'); | |
e1f44d10 NC |
6214 | /* <HS> is an alias for <CC> */ |
6215 | case MCC ('h', 's'): return MCC ('l', 'o'); | |
252b5132 | 6216 | case MCC ('c', 'c'): return MCC ('c', 's'); |
e1f44d10 NC |
6217 | /* <LO> is an alias for <CS> */ |
6218 | case MCC ('l', 'o'): return MCC ('h', 's'); | |
252b5132 RH |
6219 | case MCC ('c', 's'): return MCC ('c', 'c'); |
6220 | case MCC ('n', 'e'): return MCC ('e', 'q'); | |
6221 | case MCC ('e', 'q'): return MCC ('n', 'e'); | |
6222 | case MCC ('v', 'c'): return MCC ('v', 's'); | |
6223 | case MCC ('v', 's'): return MCC ('v', 'c'); | |
6224 | case MCC ('p', 'l'): return MCC ('m', 'i'); | |
6225 | case MCC ('m', 'i'): return MCC ('p', 'l'); | |
6226 | case MCC ('g', 'e'): return MCC ('l', 't'); | |
6227 | case MCC ('l', 't'): return MCC ('g', 'e'); | |
6228 | case MCC ('g', 't'): return MCC ('l', 'e'); | |
6229 | case MCC ('l', 'e'): return MCC ('g', 't'); | |
6230 | } | |
6231 | return cc; | |
6232 | } | |
6233 | ||
6234 | /* Build an MRI structured control expression. This generates test | |
6235 | and branch instructions. It goes to TRUELAB if the condition is | |
6236 | true, and to FALSELAB if the condition is false. Exactly one of | |
6237 | TRUELAB and FALSELAB will be NULL, meaning to fall through. QUAL | |
6238 | is the size qualifier for the expression. EXTENT is the size to | |
6239 | use for the branch. */ | |
6240 | ||
6241 | static void | |
6242 | build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart, | |
6243 | rightstop, truelab, falselab, extent) | |
6244 | int qual; | |
6245 | int cc; | |
6246 | char *leftstart; | |
6247 | char *leftstop; | |
6248 | char *rightstart; | |
6249 | char *rightstop; | |
6250 | const char *truelab; | |
6251 | const char *falselab; | |
6252 | int extent; | |
6253 | { | |
6254 | char *buf; | |
6255 | char *s; | |
6256 | ||
6257 | if (leftstart != NULL) | |
6258 | { | |
6259 | struct m68k_op leftop, rightop; | |
6260 | char c; | |
6261 | ||
6262 | /* Swap the compare operands, if necessary, to produce a legal | |
6263 | m68k compare instruction. Comparing a register operand with | |
6264 | a non-register operand requires the register to be on the | |
6265 | right (cmp, cmpa). Comparing an immediate value with | |
6266 | anything requires the immediate value to be on the left | |
6267 | (cmpi). */ | |
6268 | ||
6269 | c = *leftstop; | |
6270 | *leftstop = '\0'; | |
6271 | (void) m68k_ip_op (leftstart, &leftop); | |
6272 | *leftstop = c; | |
6273 | ||
6274 | c = *rightstop; | |
6275 | *rightstop = '\0'; | |
6276 | (void) m68k_ip_op (rightstart, &rightop); | |
6277 | *rightstop = c; | |
6278 | ||
6279 | if (rightop.mode == IMMED | |
6280 | || ((leftop.mode == DREG || leftop.mode == AREG) | |
6281 | && (rightop.mode != DREG && rightop.mode != AREG))) | |
6282 | { | |
6283 | char *temp; | |
6284 | ||
e1f44d10 NC |
6285 | /* Correct conditional handling: |
6286 | if #1 <lt> d0 then ;means if (1 < d0) | |
6287 | ... | |
6288 | endi | |
6289 | ||
6290 | should assemble to: | |
6291 | ||
6292 | cmp #1,d0 if we do *not* swap the operands | |
6293 | bgt true we need the swapped condition! | |
6294 | ble false | |
6295 | true: | |
6296 | ... | |
6297 | false: | |
6298 | */ | |
252b5132 RH |
6299 | temp = leftstart; |
6300 | leftstart = rightstart; | |
6301 | rightstart = temp; | |
6302 | temp = leftstop; | |
6303 | leftstop = rightstop; | |
6304 | rightstop = temp; | |
8a104df9 KH |
6305 | } |
6306 | else | |
6307 | { | |
e1f44d10 | 6308 | cc = swap_mri_condition (cc); |
252b5132 RH |
6309 | } |
6310 | } | |
6311 | ||
6312 | if (truelab == NULL) | |
6313 | { | |
6314 | cc = reverse_mri_condition (cc); | |
6315 | truelab = falselab; | |
6316 | } | |
92774660 | 6317 | |
252b5132 RH |
6318 | if (leftstart != NULL) |
6319 | { | |
6320 | buf = (char *) xmalloc (20 | |
6321 | + (leftstop - leftstart) | |
6322 | + (rightstop - rightstart)); | |
6323 | s = buf; | |
6324 | *s++ = 'c'; | |
6325 | *s++ = 'm'; | |
6326 | *s++ = 'p'; | |
6327 | if (qual != '\0') | |
3882b010 | 6328 | *s++ = TOLOWER (qual); |
252b5132 RH |
6329 | *s++ = ' '; |
6330 | memcpy (s, leftstart, leftstop - leftstart); | |
6331 | s += leftstop - leftstart; | |
6332 | *s++ = ','; | |
6333 | memcpy (s, rightstart, rightstop - rightstart); | |
6334 | s += rightstop - rightstart; | |
6335 | *s = '\0'; | |
6336 | mri_assemble (buf); | |
6337 | free (buf); | |
6338 | } | |
92774660 | 6339 | |
252b5132 RH |
6340 | buf = (char *) xmalloc (20 + strlen (truelab)); |
6341 | s = buf; | |
6342 | *s++ = 'b'; | |
6343 | *s++ = cc >> 8; | |
6344 | *s++ = cc & 0xff; | |
6345 | if (extent != '\0') | |
3882b010 | 6346 | *s++ = TOLOWER (extent); |
252b5132 RH |
6347 | *s++ = ' '; |
6348 | strcpy (s, truelab); | |
6349 | mri_assemble (buf); | |
6350 | free (buf); | |
6351 | } | |
6352 | ||
6353 | /* Parse an MRI structured control expression. This generates test | |
6354 | and branch instructions. STOP is where the expression ends. It | |
6355 | goes to TRUELAB if the condition is true, and to FALSELAB if the | |
6356 | condition is false. Exactly one of TRUELAB and FALSELAB will be | |
6357 | NULL, meaning to fall through. QUAL is the size qualifier for the | |
6358 | expression. EXTENT is the size to use for the branch. */ | |
6359 | ||
6360 | static void | |
6361 | parse_mri_control_expression (stop, qual, truelab, falselab, extent) | |
6362 | char *stop; | |
6363 | int qual; | |
6364 | const char *truelab; | |
6365 | const char *falselab; | |
6366 | int extent; | |
6367 | { | |
6368 | int c; | |
6369 | int cc; | |
6370 | char *leftstart; | |
6371 | char *leftstop; | |
6372 | char *rightstart; | |
6373 | char *rightstop; | |
6374 | ||
6375 | c = *stop; | |
6376 | *stop = '\0'; | |
6377 | ||
6378 | if (! parse_mri_control_operand (&cc, &leftstart, &leftstop, | |
6379 | &rightstart, &rightstop)) | |
6380 | { | |
6381 | *stop = c; | |
6382 | return; | |
6383 | } | |
6384 | ||
6385 | if (strncasecmp (input_line_pointer, "AND", 3) == 0) | |
6386 | { | |
6387 | const char *flab; | |
6388 | ||
6389 | if (falselab != NULL) | |
6390 | flab = falselab; | |
6391 | else | |
6392 | flab = mri_control_label (); | |
6393 | ||
6394 | build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart, | |
6395 | rightstop, (const char *) NULL, flab, extent); | |
6396 | ||
6397 | input_line_pointer += 3; | |
6398 | if (*input_line_pointer != '.' | |
6399 | || input_line_pointer[1] == '\0') | |
6400 | qual = '\0'; | |
6401 | else | |
6402 | { | |
6403 | qual = input_line_pointer[1]; | |
6404 | input_line_pointer += 2; | |
6405 | } | |
6406 | ||
6407 | if (! parse_mri_control_operand (&cc, &leftstart, &leftstop, | |
6408 | &rightstart, &rightstop)) | |
6409 | { | |
6410 | *stop = c; | |
6411 | return; | |
6412 | } | |
6413 | ||
6414 | build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart, | |
6415 | rightstop, truelab, falselab, extent); | |
6416 | ||
6417 | if (falselab == NULL) | |
6418 | colon (flab); | |
6419 | } | |
6420 | else if (strncasecmp (input_line_pointer, "OR", 2) == 0) | |
6421 | { | |
6422 | const char *tlab; | |
6423 | ||
6424 | if (truelab != NULL) | |
6425 | tlab = truelab; | |
6426 | else | |
6427 | tlab = mri_control_label (); | |
6428 | ||
6429 | build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart, | |
6430 | rightstop, tlab, (const char *) NULL, extent); | |
6431 | ||
6432 | input_line_pointer += 2; | |
6433 | if (*input_line_pointer != '.' | |
6434 | || input_line_pointer[1] == '\0') | |
6435 | qual = '\0'; | |
6436 | else | |
6437 | { | |
6438 | qual = input_line_pointer[1]; | |
6439 | input_line_pointer += 2; | |
6440 | } | |
6441 | ||
6442 | if (! parse_mri_control_operand (&cc, &leftstart, &leftstop, | |
6443 | &rightstart, &rightstop)) | |
6444 | { | |
6445 | *stop = c; | |
6446 | return; | |
6447 | } | |
6448 | ||
6449 | build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart, | |
6450 | rightstop, truelab, falselab, extent); | |
6451 | ||
6452 | if (truelab == NULL) | |
6453 | colon (tlab); | |
6454 | } | |
6455 | else | |
6456 | { | |
6457 | build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart, | |
6458 | rightstop, truelab, falselab, extent); | |
6459 | } | |
6460 | ||
6461 | *stop = c; | |
6462 | if (input_line_pointer != stop) | |
6463 | as_bad (_("syntax error in structured control directive")); | |
6464 | } | |
6465 | ||
6466 | /* Handle the MRI IF pseudo-op. This may be a structured control | |
6467 | directive, or it may be a regular assembler conditional, depending | |
6468 | on its operands. */ | |
6469 | ||
6470 | static void | |
6471 | s_mri_if (qual) | |
6472 | int qual; | |
6473 | { | |
6474 | char *s; | |
6475 | int c; | |
6476 | struct mri_control_info *n; | |
6477 | ||
6478 | /* A structured control directive must end with THEN with an | |
6479 | optional qualifier. */ | |
6480 | s = input_line_pointer; | |
e1f44d10 NC |
6481 | /* We only accept '*' as introduction of comments if preceded by white space |
6482 | or at first column of a line (I think this can't actually happen here?) | |
6483 | This is important when assembling: | |
6484 | if d0 <ne> 12(a0,d0*2) then | |
36759679 | 6485 | if d0 <ne> #CONST*20 then. */ |
e1f44d10 NC |
6486 | while ( ! ( is_end_of_line[(unsigned char) *s] |
6487 | || ( flag_mri | |
6488 | && *s == '*' | |
6489 | && ( s == input_line_pointer | |
6490 | || *(s-1) == ' ' | |
6491 | || *(s-1) == '\t')))) | |
252b5132 RH |
6492 | ++s; |
6493 | --s; | |
6494 | while (s > input_line_pointer && (*s == ' ' || *s == '\t')) | |
6495 | --s; | |
6496 | ||
6497 | if (s - input_line_pointer > 1 | |
6498 | && s[-1] == '.') | |
6499 | s -= 2; | |
6500 | ||
6501 | if (s - input_line_pointer < 3 | |
6502 | || strncasecmp (s - 3, "THEN", 4) != 0) | |
6503 | { | |
6504 | if (qual != '\0') | |
6505 | { | |
6506 | as_bad (_("missing then")); | |
6507 | ignore_rest_of_line (); | |
6508 | return; | |
6509 | } | |
6510 | ||
6511 | /* It's a conditional. */ | |
6512 | s_if (O_ne); | |
6513 | return; | |
6514 | } | |
6515 | ||
6516 | /* Since this might be a conditional if, this pseudo-op will be | |
6517 | called even if we are supported to be ignoring input. Double | |
6518 | check now. Clobber *input_line_pointer so that ignore_input | |
6519 | thinks that this is not a special pseudo-op. */ | |
6520 | c = *input_line_pointer; | |
6521 | *input_line_pointer = 0; | |
6522 | if (ignore_input ()) | |
6523 | { | |
6524 | *input_line_pointer = c; | |
6525 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6526 | ++input_line_pointer; | |
6527 | demand_empty_rest_of_line (); | |
6528 | return; | |
6529 | } | |
6530 | *input_line_pointer = c; | |
6531 | ||
6532 | n = push_mri_control (mri_if); | |
6533 | ||
6534 | parse_mri_control_expression (s - 3, qual, (const char *) NULL, | |
6535 | n->next, s[1] == '.' ? s[2] : '\0'); | |
6536 | ||
6537 | if (s[1] == '.') | |
6538 | input_line_pointer = s + 3; | |
6539 | else | |
6540 | input_line_pointer = s + 1; | |
6541 | ||
6542 | if (flag_mri) | |
6543 | { | |
6544 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6545 | ++input_line_pointer; | |
6546 | } | |
6547 | ||
6548 | demand_empty_rest_of_line (); | |
6549 | } | |
6550 | ||
6551 | /* Handle the MRI else pseudo-op. If we are currently doing an MRI | |
6552 | structured IF, associate the ELSE with the IF. Otherwise, assume | |
6553 | it is a conditional else. */ | |
6554 | ||
6555 | static void | |
6556 | s_mri_else (qual) | |
6557 | int qual; | |
6558 | { | |
6559 | int c; | |
6560 | char *buf; | |
6561 | char q[2]; | |
6562 | ||
6563 | if (qual == '\0' | |
6564 | && (mri_control_stack == NULL | |
6565 | || mri_control_stack->type != mri_if | |
6566 | || mri_control_stack->else_seen)) | |
6567 | { | |
6568 | s_else (0); | |
6569 | return; | |
6570 | } | |
6571 | ||
6572 | c = *input_line_pointer; | |
6573 | *input_line_pointer = 0; | |
6574 | if (ignore_input ()) | |
6575 | { | |
6576 | *input_line_pointer = c; | |
6577 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6578 | ++input_line_pointer; | |
6579 | demand_empty_rest_of_line (); | |
6580 | return; | |
6581 | } | |
6582 | *input_line_pointer = c; | |
6583 | ||
6584 | if (mri_control_stack == NULL | |
6585 | || mri_control_stack->type != mri_if | |
6586 | || mri_control_stack->else_seen) | |
6587 | { | |
6588 | as_bad (_("else without matching if")); | |
6589 | ignore_rest_of_line (); | |
6590 | return; | |
6591 | } | |
6592 | ||
6593 | mri_control_stack->else_seen = 1; | |
6594 | ||
6595 | buf = (char *) xmalloc (20 + strlen (mri_control_stack->bottom)); | |
3882b010 | 6596 | q[0] = TOLOWER (qual); |
252b5132 RH |
6597 | q[1] = '\0'; |
6598 | sprintf (buf, "bra%s %s", q, mri_control_stack->bottom); | |
6599 | mri_assemble (buf); | |
6600 | free (buf); | |
6601 | ||
6602 | colon (mri_control_stack->next); | |
6603 | ||
6604 | if (flag_mri) | |
6605 | { | |
6606 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6607 | ++input_line_pointer; | |
6608 | } | |
6609 | ||
6610 | demand_empty_rest_of_line (); | |
6611 | } | |
6612 | ||
6613 | /* Handle the MRI ENDI pseudo-op. */ | |
6614 | ||
6615 | static void | |
6616 | s_mri_endi (ignore) | |
36823076 | 6617 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
6618 | { |
6619 | if (mri_control_stack == NULL | |
6620 | || mri_control_stack->type != mri_if) | |
6621 | { | |
6622 | as_bad (_("endi without matching if")); | |
6623 | ignore_rest_of_line (); | |
6624 | return; | |
6625 | } | |
6626 | ||
6627 | /* ignore_input will not return true for ENDI, so we don't need to | |
6628 | worry about checking it again here. */ | |
6629 | ||
6630 | if (! mri_control_stack->else_seen) | |
6631 | colon (mri_control_stack->next); | |
6632 | colon (mri_control_stack->bottom); | |
6633 | ||
6634 | pop_mri_control (); | |
6635 | ||
6636 | if (flag_mri) | |
6637 | { | |
6638 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6639 | ++input_line_pointer; | |
6640 | } | |
6641 | ||
6642 | demand_empty_rest_of_line (); | |
6643 | } | |
6644 | ||
6645 | /* Handle the MRI BREAK pseudo-op. */ | |
6646 | ||
6647 | static void | |
6648 | s_mri_break (extent) | |
6649 | int extent; | |
6650 | { | |
6651 | struct mri_control_info *n; | |
6652 | char *buf; | |
6653 | char ex[2]; | |
6654 | ||
6655 | n = mri_control_stack; | |
6656 | while (n != NULL | |
6657 | && n->type != mri_for | |
6658 | && n->type != mri_repeat | |
6659 | && n->type != mri_while) | |
6660 | n = n->outer; | |
6661 | if (n == NULL) | |
6662 | { | |
6663 | as_bad (_("break outside of structured loop")); | |
6664 | ignore_rest_of_line (); | |
6665 | return; | |
6666 | } | |
6667 | ||
6668 | buf = (char *) xmalloc (20 + strlen (n->bottom)); | |
3882b010 | 6669 | ex[0] = TOLOWER (extent); |
252b5132 RH |
6670 | ex[1] = '\0'; |
6671 | sprintf (buf, "bra%s %s", ex, n->bottom); | |
6672 | mri_assemble (buf); | |
6673 | free (buf); | |
6674 | ||
6675 | if (flag_mri) | |
6676 | { | |
6677 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6678 | ++input_line_pointer; | |
6679 | } | |
6680 | ||
6681 | demand_empty_rest_of_line (); | |
6682 | } | |
6683 | ||
6684 | /* Handle the MRI NEXT pseudo-op. */ | |
6685 | ||
6686 | static void | |
6687 | s_mri_next (extent) | |
6688 | int extent; | |
6689 | { | |
6690 | struct mri_control_info *n; | |
6691 | char *buf; | |
6692 | char ex[2]; | |
6693 | ||
6694 | n = mri_control_stack; | |
6695 | while (n != NULL | |
6696 | && n->type != mri_for | |
6697 | && n->type != mri_repeat | |
6698 | && n->type != mri_while) | |
6699 | n = n->outer; | |
6700 | if (n == NULL) | |
6701 | { | |
6702 | as_bad (_("next outside of structured loop")); | |
6703 | ignore_rest_of_line (); | |
6704 | return; | |
6705 | } | |
6706 | ||
6707 | buf = (char *) xmalloc (20 + strlen (n->next)); | |
3882b010 | 6708 | ex[0] = TOLOWER (extent); |
252b5132 RH |
6709 | ex[1] = '\0'; |
6710 | sprintf (buf, "bra%s %s", ex, n->next); | |
6711 | mri_assemble (buf); | |
6712 | free (buf); | |
6713 | ||
6714 | if (flag_mri) | |
6715 | { | |
6716 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6717 | ++input_line_pointer; | |
6718 | } | |
6719 | ||
6720 | demand_empty_rest_of_line (); | |
6721 | } | |
6722 | ||
6723 | /* Handle the MRI FOR pseudo-op. */ | |
6724 | ||
6725 | static void | |
6726 | s_mri_for (qual) | |
6727 | int qual; | |
6728 | { | |
6729 | const char *varstart, *varstop; | |
6730 | const char *initstart, *initstop; | |
6731 | const char *endstart, *endstop; | |
6732 | const char *bystart, *bystop; | |
6733 | int up; | |
6734 | int by; | |
6735 | int extent; | |
6736 | struct mri_control_info *n; | |
6737 | char *buf; | |
6738 | char *s; | |
6739 | char ex[2]; | |
6740 | ||
6741 | /* The syntax is | |
6742 | FOR.q var = init { TO | DOWNTO } end [ BY by ] DO.e | |
6743 | */ | |
6744 | ||
6745 | SKIP_WHITESPACE (); | |
6746 | varstart = input_line_pointer; | |
6747 | ||
6748 | /* Look for the '='. */ | |
6749 | while (! is_end_of_line[(unsigned char) *input_line_pointer] | |
6750 | && *input_line_pointer != '=') | |
6751 | ++input_line_pointer; | |
6752 | if (*input_line_pointer != '=') | |
6753 | { | |
6754 | as_bad (_("missing =")); | |
6755 | ignore_rest_of_line (); | |
6756 | return; | |
6757 | } | |
6758 | ||
6759 | varstop = input_line_pointer; | |
6760 | if (varstop > varstart | |
6761 | && (varstop[-1] == ' ' || varstop[-1] == '\t')) | |
6762 | --varstop; | |
6763 | ||
6764 | ++input_line_pointer; | |
6765 | ||
6766 | initstart = input_line_pointer; | |
6767 | ||
6768 | /* Look for TO or DOWNTO. */ | |
6769 | up = 1; | |
6770 | initstop = NULL; | |
6771 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6772 | { | |
6773 | if (strncasecmp (input_line_pointer, "TO", 2) == 0 | |
6774 | && ! is_part_of_name (input_line_pointer[2])) | |
6775 | { | |
6776 | initstop = input_line_pointer; | |
6777 | input_line_pointer += 2; | |
6778 | break; | |
6779 | } | |
6780 | if (strncasecmp (input_line_pointer, "DOWNTO", 6) == 0 | |
6781 | && ! is_part_of_name (input_line_pointer[6])) | |
6782 | { | |
6783 | initstop = input_line_pointer; | |
6784 | up = 0; | |
6785 | input_line_pointer += 6; | |
6786 | break; | |
6787 | } | |
6788 | ++input_line_pointer; | |
6789 | } | |
6790 | if (initstop == NULL) | |
6791 | { | |
6792 | as_bad (_("missing to or downto")); | |
6793 | ignore_rest_of_line (); | |
6794 | return; | |
6795 | } | |
6796 | if (initstop > initstart | |
6797 | && (initstop[-1] == ' ' || initstop[-1] == '\t')) | |
6798 | --initstop; | |
6799 | ||
6800 | SKIP_WHITESPACE (); | |
6801 | endstart = input_line_pointer; | |
6802 | ||
6803 | /* Look for BY or DO. */ | |
6804 | by = 0; | |
6805 | endstop = NULL; | |
6806 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6807 | { | |
6808 | if (strncasecmp (input_line_pointer, "BY", 2) == 0 | |
6809 | && ! is_part_of_name (input_line_pointer[2])) | |
6810 | { | |
6811 | endstop = input_line_pointer; | |
6812 | by = 1; | |
6813 | input_line_pointer += 2; | |
6814 | break; | |
6815 | } | |
6816 | if (strncasecmp (input_line_pointer, "DO", 2) == 0 | |
6817 | && (input_line_pointer[2] == '.' | |
6818 | || ! is_part_of_name (input_line_pointer[2]))) | |
6819 | { | |
6820 | endstop = input_line_pointer; | |
6821 | input_line_pointer += 2; | |
6822 | break; | |
6823 | } | |
6824 | ++input_line_pointer; | |
6825 | } | |
6826 | if (endstop == NULL) | |
6827 | { | |
6828 | as_bad (_("missing do")); | |
6829 | ignore_rest_of_line (); | |
6830 | return; | |
6831 | } | |
6832 | if (endstop > endstart | |
6833 | && (endstop[-1] == ' ' || endstop[-1] == '\t')) | |
6834 | --endstop; | |
6835 | ||
6836 | if (! by) | |
6837 | { | |
6838 | bystart = "#1"; | |
6839 | bystop = bystart + 2; | |
6840 | } | |
6841 | else | |
6842 | { | |
6843 | SKIP_WHITESPACE (); | |
6844 | bystart = input_line_pointer; | |
6845 | ||
6846 | /* Look for DO. */ | |
6847 | bystop = NULL; | |
6848 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6849 | { | |
6850 | if (strncasecmp (input_line_pointer, "DO", 2) == 0 | |
6851 | && (input_line_pointer[2] == '.' | |
6852 | || ! is_part_of_name (input_line_pointer[2]))) | |
6853 | { | |
6854 | bystop = input_line_pointer; | |
6855 | input_line_pointer += 2; | |
6856 | break; | |
6857 | } | |
6858 | ++input_line_pointer; | |
6859 | } | |
6860 | if (bystop == NULL) | |
6861 | { | |
6862 | as_bad (_("missing do")); | |
6863 | ignore_rest_of_line (); | |
6864 | return; | |
6865 | } | |
6866 | if (bystop > bystart | |
6867 | && (bystop[-1] == ' ' || bystop[-1] == '\t')) | |
6868 | --bystop; | |
6869 | } | |
6870 | ||
6871 | if (*input_line_pointer != '.') | |
6872 | extent = '\0'; | |
6873 | else | |
6874 | { | |
6875 | extent = input_line_pointer[1]; | |
6876 | input_line_pointer += 2; | |
6877 | } | |
6878 | ||
6879 | /* We have fully parsed the FOR operands. Now build the loop. */ | |
252b5132 RH |
6880 | n = push_mri_control (mri_for); |
6881 | ||
6882 | buf = (char *) xmalloc (50 + (input_line_pointer - varstart)); | |
6883 | ||
36759679 | 6884 | /* Move init,var. */ |
252b5132 RH |
6885 | s = buf; |
6886 | *s++ = 'm'; | |
6887 | *s++ = 'o'; | |
6888 | *s++ = 'v'; | |
6889 | *s++ = 'e'; | |
6890 | if (qual != '\0') | |
3882b010 | 6891 | *s++ = TOLOWER (qual); |
252b5132 RH |
6892 | *s++ = ' '; |
6893 | memcpy (s, initstart, initstop - initstart); | |
6894 | s += initstop - initstart; | |
6895 | *s++ = ','; | |
6896 | memcpy (s, varstart, varstop - varstart); | |
6897 | s += varstop - varstart; | |
6898 | *s = '\0'; | |
6899 | mri_assemble (buf); | |
6900 | ||
6901 | colon (n->top); | |
6902 | ||
36759679 | 6903 | /* cmp end,var. */ |
252b5132 RH |
6904 | s = buf; |
6905 | *s++ = 'c'; | |
6906 | *s++ = 'm'; | |
6907 | *s++ = 'p'; | |
6908 | if (qual != '\0') | |
3882b010 | 6909 | *s++ = TOLOWER (qual); |
252b5132 RH |
6910 | *s++ = ' '; |
6911 | memcpy (s, endstart, endstop - endstart); | |
6912 | s += endstop - endstart; | |
6913 | *s++ = ','; | |
6914 | memcpy (s, varstart, varstop - varstart); | |
6915 | s += varstop - varstart; | |
6916 | *s = '\0'; | |
6917 | mri_assemble (buf); | |
6918 | ||
36759679 | 6919 | /* bcc bottom. */ |
3882b010 | 6920 | ex[0] = TOLOWER (extent); |
252b5132 RH |
6921 | ex[1] = '\0'; |
6922 | if (up) | |
6923 | sprintf (buf, "blt%s %s", ex, n->bottom); | |
6924 | else | |
6925 | sprintf (buf, "bgt%s %s", ex, n->bottom); | |
6926 | mri_assemble (buf); | |
6927 | ||
6928 | /* Put together the add or sub instruction used by ENDF. */ | |
6929 | s = buf; | |
6930 | if (up) | |
6931 | strcpy (s, "add"); | |
6932 | else | |
6933 | strcpy (s, "sub"); | |
6934 | s += 3; | |
6935 | if (qual != '\0') | |
3882b010 | 6936 | *s++ = TOLOWER (qual); |
252b5132 RH |
6937 | *s++ = ' '; |
6938 | memcpy (s, bystart, bystop - bystart); | |
6939 | s += bystop - bystart; | |
6940 | *s++ = ','; | |
6941 | memcpy (s, varstart, varstop - varstart); | |
6942 | s += varstop - varstart; | |
6943 | *s = '\0'; | |
6944 | n->incr = buf; | |
6945 | ||
6946 | if (flag_mri) | |
6947 | { | |
6948 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6949 | ++input_line_pointer; | |
6950 | } | |
6951 | ||
6952 | demand_empty_rest_of_line (); | |
6953 | } | |
6954 | ||
6955 | /* Handle the MRI ENDF pseudo-op. */ | |
6956 | ||
6957 | static void | |
6958 | s_mri_endf (ignore) | |
36823076 | 6959 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
6960 | { |
6961 | if (mri_control_stack == NULL | |
6962 | || mri_control_stack->type != mri_for) | |
6963 | { | |
6964 | as_bad (_("endf without for")); | |
6965 | ignore_rest_of_line (); | |
6966 | return; | |
6967 | } | |
6968 | ||
6969 | colon (mri_control_stack->next); | |
6970 | ||
6971 | mri_assemble (mri_control_stack->incr); | |
6972 | ||
6973 | sprintf (mri_control_stack->incr, "bra %s", mri_control_stack->top); | |
6974 | mri_assemble (mri_control_stack->incr); | |
6975 | ||
6976 | free (mri_control_stack->incr); | |
6977 | ||
6978 | colon (mri_control_stack->bottom); | |
6979 | ||
6980 | pop_mri_control (); | |
6981 | ||
6982 | if (flag_mri) | |
6983 | { | |
6984 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6985 | ++input_line_pointer; | |
6986 | } | |
6987 | ||
6988 | demand_empty_rest_of_line (); | |
6989 | } | |
6990 | ||
6991 | /* Handle the MRI REPEAT pseudo-op. */ | |
6992 | ||
6993 | static void | |
6994 | s_mri_repeat (ignore) | |
36823076 | 6995 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
6996 | { |
6997 | struct mri_control_info *n; | |
6998 | ||
6999 | n = push_mri_control (mri_repeat); | |
7000 | colon (n->top); | |
7001 | if (flag_mri) | |
7002 | { | |
7003 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
7004 | ++input_line_pointer; | |
7005 | } | |
7006 | demand_empty_rest_of_line (); | |
7007 | } | |
7008 | ||
7009 | /* Handle the MRI UNTIL pseudo-op. */ | |
7010 | ||
7011 | static void | |
7012 | s_mri_until (qual) | |
7013 | int qual; | |
7014 | { | |
7015 | char *s; | |
7016 | ||
7017 | if (mri_control_stack == NULL | |
7018 | || mri_control_stack->type != mri_repeat) | |
7019 | { | |
7020 | as_bad (_("until without repeat")); | |
7021 | ignore_rest_of_line (); | |
7022 | return; | |
7023 | } | |
7024 | ||
7025 | colon (mri_control_stack->next); | |
7026 | ||
7027 | for (s = input_line_pointer; ! is_end_of_line[(unsigned char) *s]; s++) | |
7028 | ; | |
7029 | ||
7030 | parse_mri_control_expression (s, qual, (const char *) NULL, | |
7031 | mri_control_stack->top, '\0'); | |
7032 | ||
7033 | colon (mri_control_stack->bottom); | |
7034 | ||
7035 | input_line_pointer = s; | |
7036 | ||
7037 | pop_mri_control (); | |
7038 | ||
7039 | if (flag_mri) | |
7040 | { | |
7041 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
7042 | ++input_line_pointer; | |
7043 | } | |
7044 | ||
7045 | demand_empty_rest_of_line (); | |
7046 | } | |
7047 | ||
7048 | /* Handle the MRI WHILE pseudo-op. */ | |
7049 | ||
7050 | static void | |
7051 | s_mri_while (qual) | |
7052 | int qual; | |
7053 | { | |
7054 | char *s; | |
7055 | ||
7056 | struct mri_control_info *n; | |
7057 | ||
7058 | s = input_line_pointer; | |
e1f44d10 NC |
7059 | /* We only accept '*' as introduction of comments if preceded by white space |
7060 | or at first column of a line (I think this can't actually happen here?) | |
7061 | This is important when assembling: | |
7062 | while d0 <ne> 12(a0,d0*2) do | |
36759679 | 7063 | while d0 <ne> #CONST*20 do. */ |
8a104df9 KH |
7064 | while (! (is_end_of_line[(unsigned char) *s] |
7065 | || (flag_mri | |
7066 | && *s == '*' | |
7067 | && (s == input_line_pointer | |
7068 | || *(s-1) == ' ' | |
7069 | || *(s-1) == '\t')))) | |
252b5132 RH |
7070 | s++; |
7071 | --s; | |
7072 | while (*s == ' ' || *s == '\t') | |
7073 | --s; | |
7074 | if (s - input_line_pointer > 1 | |
7075 | && s[-1] == '.') | |
7076 | s -= 2; | |
7077 | if (s - input_line_pointer < 2 | |
7078 | || strncasecmp (s - 1, "DO", 2) != 0) | |
7079 | { | |
7080 | as_bad (_("missing do")); | |
7081 | ignore_rest_of_line (); | |
7082 | return; | |
7083 | } | |
7084 | ||
7085 | n = push_mri_control (mri_while); | |
7086 | ||
7087 | colon (n->next); | |
7088 | ||
7089 | parse_mri_control_expression (s - 1, qual, (const char *) NULL, n->bottom, | |
7090 | s[1] == '.' ? s[2] : '\0'); | |
7091 | ||
7092 | input_line_pointer = s + 1; | |
7093 | if (*input_line_pointer == '.') | |
7094 | input_line_pointer += 2; | |
7095 | ||
7096 | if (flag_mri) | |
7097 | { | |
7098 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
7099 | ++input_line_pointer; | |
7100 | } | |
7101 | ||
7102 | demand_empty_rest_of_line (); | |
7103 | } | |
7104 | ||
7105 | /* Handle the MRI ENDW pseudo-op. */ | |
7106 | ||
7107 | static void | |
7108 | s_mri_endw (ignore) | |
36823076 | 7109 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
7110 | { |
7111 | char *buf; | |
7112 | ||
7113 | if (mri_control_stack == NULL | |
7114 | || mri_control_stack->type != mri_while) | |
7115 | { | |
7116 | as_bad (_("endw without while")); | |
7117 | ignore_rest_of_line (); | |
7118 | return; | |
7119 | } | |
7120 | ||
7121 | buf = (char *) xmalloc (20 + strlen (mri_control_stack->next)); | |
7122 | sprintf (buf, "bra %s", mri_control_stack->next); | |
7123 | mri_assemble (buf); | |
7124 | free (buf); | |
7125 | ||
7126 | colon (mri_control_stack->bottom); | |
7127 | ||
7128 | pop_mri_control (); | |
7129 | ||
7130 | if (flag_mri) | |
7131 | { | |
7132 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
7133 | ++input_line_pointer; | |
7134 | } | |
7135 | ||
7136 | demand_empty_rest_of_line (); | |
7137 | } | |
7138 | \f | |
7139 | /* | |
7140 | * md_parse_option | |
7141 | * Invocation line includes a switch not recognized by the base assembler. | |
7142 | * See if it's a processor-specific option. These are: | |
7143 | * | |
7144 | * -[A]m[c]68000, -[A]m[c]68008, -[A]m[c]68010, -[A]m[c]68020, -[A]m[c]68030, -[A]m[c]68040 | |
7145 | * -[A]m[c]68881, -[A]m[c]68882, -[A]m[c]68851 | |
7146 | * Select the architecture. Instructions or features not | |
7147 | * supported by the selected architecture cause fatal | |
7148 | * errors. More than one may be specified. The default is | |
7149 | * -m68020 -m68851 -m68881. Note that -m68008 is a synonym | |
7150 | * for -m68000, and -m68882 is a synonym for -m68881. | |
7151 | * -[A]m[c]no-68851, -[A]m[c]no-68881 | |
7152 | * Don't accept 688?1 instructions. (The "c" is kind of silly, | |
7153 | * so don't use or document it, but that's the way the parsing | |
7154 | * works). | |
7155 | * | |
7156 | * -pic Indicates PIC. | |
7157 | * -k Indicates PIC. (Sun 3 only.) | |
28e7409f | 7158 | * --pcrel Never turn PC-relative branches into absolute jumps. |
252b5132 RH |
7159 | * |
7160 | * --bitwise-or | |
7161 | * Permit `|' to be used in expressions. | |
7162 | * | |
7163 | */ | |
7164 | ||
7165 | #ifdef OBJ_ELF | |
5a38dc70 | 7166 | const char *md_shortopts = "lSA:m:kQ:V"; |
252b5132 | 7167 | #else |
5a38dc70 | 7168 | const char *md_shortopts = "lSA:m:k"; |
252b5132 RH |
7169 | #endif |
7170 | ||
7171 | struct option md_longopts[] = { | |
7172 | #define OPTION_PIC (OPTION_MD_BASE) | |
7173 | {"pic", no_argument, NULL, OPTION_PIC}, | |
7174 | #define OPTION_REGISTER_PREFIX_OPTIONAL (OPTION_MD_BASE + 1) | |
7175 | {"register-prefix-optional", no_argument, NULL, | |
7176 | OPTION_REGISTER_PREFIX_OPTIONAL}, | |
7177 | #define OPTION_BITWISE_OR (OPTION_MD_BASE + 2) | |
7178 | {"bitwise-or", no_argument, NULL, OPTION_BITWISE_OR}, | |
7179 | #define OPTION_BASE_SIZE_DEFAULT_16 (OPTION_MD_BASE + 3) | |
7180 | {"base-size-default-16", no_argument, NULL, OPTION_BASE_SIZE_DEFAULT_16}, | |
7181 | #define OPTION_BASE_SIZE_DEFAULT_32 (OPTION_MD_BASE + 4) | |
7182 | {"base-size-default-32", no_argument, NULL, OPTION_BASE_SIZE_DEFAULT_32}, | |
7183 | #define OPTION_DISP_SIZE_DEFAULT_16 (OPTION_MD_BASE + 5) | |
7184 | {"disp-size-default-16", no_argument, NULL, OPTION_DISP_SIZE_DEFAULT_16}, | |
7185 | #define OPTION_DISP_SIZE_DEFAULT_32 (OPTION_MD_BASE + 6) | |
7186 | {"disp-size-default-32", no_argument, NULL, OPTION_DISP_SIZE_DEFAULT_32}, | |
28e7409f NC |
7187 | #define OPTION_PCREL (OPTION_MD_BASE + 7) |
7188 | {"pcrel", no_argument, NULL, OPTION_PCREL}, | |
252b5132 RH |
7189 | {NULL, no_argument, NULL, 0} |
7190 | }; | |
bc805888 | 7191 | size_t md_longopts_size = sizeof (md_longopts); |
252b5132 RH |
7192 | |
7193 | int | |
7194 | md_parse_option (c, arg) | |
7195 | int c; | |
7196 | char *arg; | |
7197 | { | |
7198 | switch (c) | |
7199 | { | |
7200 | case 'l': /* -l means keep external to 2 bit offset | |
36759679 | 7201 | rather than 16 bit one. */ |
252b5132 RH |
7202 | flag_short_refs = 1; |
7203 | break; | |
7204 | ||
7205 | case 'S': /* -S means that jbsr's always turn into | |
7206 | jsr's. */ | |
7207 | flag_long_jumps = 1; | |
7208 | break; | |
7209 | ||
28e7409f NC |
7210 | case OPTION_PCREL: /* --pcrel means never turn PC-relative |
7211 | branches into absolute jumps. */ | |
7212 | flag_keep_pcrel = 1; | |
7213 | break; | |
7214 | ||
252b5132 RH |
7215 | case 'A': |
7216 | if (*arg == 'm') | |
8a104df9 | 7217 | arg++; |
36759679 | 7218 | /* Intentional fall-through. */ |
252b5132 RH |
7219 | case 'm': |
7220 | ||
7221 | if (arg[0] == 'n' && arg[1] == 'o' && arg[2] == '-') | |
7222 | { | |
7223 | int i; | |
7224 | unsigned long arch; | |
7225 | const char *oarg = arg; | |
7226 | ||
7227 | arg += 3; | |
7228 | if (*arg == 'm') | |
7229 | { | |
7230 | arg++; | |
7231 | if (arg[0] == 'c' && arg[1] == '6') | |
7232 | arg++; | |
7233 | } | |
7234 | for (i = 0; i < n_archs; i++) | |
7235 | if (!strcmp (arg, archs[i].name)) | |
7236 | break; | |
7237 | if (i == n_archs) | |
7238 | { | |
7239 | unknown: | |
7240 | as_bad (_("unrecognized option `%s'"), oarg); | |
7241 | return 0; | |
7242 | } | |
7243 | arch = archs[i].arch; | |
7244 | if (arch == m68881) | |
7245 | no_68881 = 1; | |
7246 | else if (arch == m68851) | |
7247 | no_68851 = 1; | |
7248 | else | |
7249 | goto unknown; | |
7250 | } | |
7251 | else | |
7252 | { | |
7253 | int i; | |
7254 | ||
7255 | if (arg[0] == 'c' && arg[1] == '6') | |
7256 | arg++; | |
7257 | ||
7258 | for (i = 0; i < n_archs; i++) | |
7259 | if (!strcmp (arg, archs[i].name)) | |
7260 | { | |
7261 | unsigned long arch = archs[i].arch; | |
7262 | if (cpu_of_arch (arch)) | |
7263 | /* It's a cpu spec. */ | |
7264 | { | |
7265 | current_architecture &= ~m68000up; | |
7266 | current_architecture |= arch; | |
990ae22a | 7267 | current_chip = archs[i].chip; |
252b5132 RH |
7268 | } |
7269 | else if (arch == m68881) | |
7270 | { | |
7271 | current_architecture |= m68881; | |
7272 | no_68881 = 0; | |
7273 | } | |
7274 | else if (arch == m68851) | |
7275 | { | |
7276 | current_architecture |= m68851; | |
7277 | no_68851 = 0; | |
7278 | } | |
7279 | else | |
7280 | /* ??? */ | |
7281 | abort (); | |
7282 | break; | |
7283 | } | |
7284 | if (i == n_archs) | |
7285 | { | |
7286 | as_bad (_("unrecognized architecture specification `%s'"), arg); | |
7287 | return 0; | |
7288 | } | |
7289 | } | |
7290 | break; | |
7291 | ||
7292 | case OPTION_PIC: | |
7293 | case 'k': | |
7294 | flag_want_pic = 1; | |
36759679 | 7295 | break; /* -pic, Position Independent Code. */ |
252b5132 RH |
7296 | |
7297 | case OPTION_REGISTER_PREFIX_OPTIONAL: | |
7298 | flag_reg_prefix_optional = 1; | |
7299 | reg_prefix_optional_seen = 1; | |
7300 | break; | |
7301 | ||
7302 | /* -V: SVR4 argument to print version ID. */ | |
7303 | case 'V': | |
7304 | print_version_id (); | |
7305 | break; | |
7306 | ||
7307 | /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section | |
7308 | should be emitted or not. FIXME: Not implemented. */ | |
7309 | case 'Q': | |
7310 | break; | |
7311 | ||
7312 | case OPTION_BITWISE_OR: | |
7313 | { | |
7314 | char *n, *t; | |
7315 | const char *s; | |
7316 | ||
7317 | n = (char *) xmalloc (strlen (m68k_comment_chars) + 1); | |
7318 | t = n; | |
7319 | for (s = m68k_comment_chars; *s != '\0'; s++) | |
7320 | if (*s != '|') | |
7321 | *t++ = *s; | |
7322 | *t = '\0'; | |
7323 | m68k_comment_chars = n; | |
7324 | } | |
7325 | break; | |
7326 | ||
7327 | case OPTION_BASE_SIZE_DEFAULT_16: | |
7328 | m68k_index_width_default = SIZE_WORD; | |
7329 | break; | |
7330 | ||
7331 | case OPTION_BASE_SIZE_DEFAULT_32: | |
7332 | m68k_index_width_default = SIZE_LONG; | |
7333 | break; | |
7334 | ||
7335 | case OPTION_DISP_SIZE_DEFAULT_16: | |
7336 | m68k_rel32 = 0; | |
7337 | m68k_rel32_from_cmdline = 1; | |
7338 | break; | |
7339 | ||
7340 | case OPTION_DISP_SIZE_DEFAULT_32: | |
7341 | m68k_rel32 = 1; | |
7342 | m68k_rel32_from_cmdline = 1; | |
7343 | break; | |
7344 | ||
7345 | default: | |
7346 | return 0; | |
7347 | } | |
7348 | ||
7349 | return 1; | |
7350 | } | |
7351 | ||
7352 | void | |
7353 | md_show_usage (stream) | |
7354 | FILE *stream; | |
7355 | { | |
76f57f3a | 7356 | const char *default_cpu = TARGET_CPU; |
f1f5ef86 AM |
7357 | int i; |
7358 | unsigned int default_arch; | |
76f57f3a | 7359 | |
8a104df9 | 7360 | /* Get the canonical name for the default target CPU. */ |
76f57f3a JT |
7361 | if (*default_cpu == 'm') |
7362 | default_cpu++; | |
7363 | for (i = 0; i < n_archs; i++) | |
7364 | { | |
7365 | if (strcasecmp (default_cpu, archs[i].name) == 0) | |
7366 | { | |
7367 | default_arch = archs[i].arch; | |
7368 | for (i = 0; i < n_archs; i++) | |
7369 | { | |
7370 | if (archs[i].arch == default_arch | |
7371 | && !archs[i].alias) | |
7372 | { | |
7373 | default_cpu = archs[i].name; | |
7374 | break; | |
7375 | } | |
7376 | } | |
7377 | } | |
7378 | } | |
7379 | ||
bc805888 | 7380 | fprintf (stream, _("\ |
252b5132 RH |
7381 | 680X0 options:\n\ |
7382 | -l use 1 word for refs to undefined symbols [default 2]\n\ | |
98b32482 NC |
7383 | -m68000 | -m68008 | -m68010 | -m68020 | -m68030 | -m68040 | -m68060 |\n\ |
7384 | -m68302 | -m68331 | -m68332 | -m68333 | -m68340 | -m68360 | -mcpu32 |\n\ | |
6b6e92f4 NC |
7385 | -m5200 | -m5202 | -m5204 | -m5206 | -m5206e | -m521x | -m5249 |\n\ |
7386 | -m528x | -m5307 | -m5407 | -m547x | -m548x | -mcfv4 | -mcfv4e\n\ | |
76f57f3a | 7387 | specify variant of 680X0 architecture [default %s]\n\ |
252b5132 RH |
7388 | -m68881 | -m68882 | -mno-68881 | -mno-68882\n\ |
7389 | target has/lacks floating-point coprocessor\n\ | |
76f57f3a JT |
7390 | [default yes for 68020, 68030, and cpu32]\n"), |
7391 | default_cpu); | |
bc805888 | 7392 | fprintf (stream, _("\ |
252b5132 RH |
7393 | -m68851 | -mno-68851\n\ |
7394 | target has/lacks memory-management unit coprocessor\n\ | |
7395 | [default yes for 68020 and up]\n\ | |
7396 | -pic, -k generate position independent code\n\ | |
7397 | -S turn jbsr into jsr\n\ | |
28e7409f | 7398 | --pcrel never turn PC-relative branches into absolute jumps\n\ |
252b5132 RH |
7399 | --register-prefix-optional\n\ |
7400 | recognize register names without prefix character\n\ | |
7401 | --bitwise-or do not treat `|' as a comment character\n")); | |
7402 | fprintf (stream, _("\ | |
7403 | --base-size-default-16 base reg without size is 16 bits\n\ | |
7404 | --base-size-default-32 base reg without size is 32 bits (default)\n\ | |
7405 | --disp-size-default-16 displacement with unknown size is 16 bits\n\ | |
7406 | --disp-size-default-32 displacement with unknown size is 32 bits (default)\n")); | |
7407 | } | |
7408 | \f | |
7409 | #ifdef TEST2 | |
7410 | ||
7411 | /* TEST2: Test md_assemble() */ | |
36759679 NC |
7412 | /* Warning, this routine probably doesn't work anymore. */ |
7413 | int | |
252b5132 RH |
7414 | main () |
7415 | { | |
7416 | struct m68k_it the_ins; | |
7417 | char buf[120]; | |
7418 | char *cp; | |
7419 | int n; | |
7420 | ||
7421 | m68k_ip_begin (); | |
7422 | for (;;) | |
7423 | { | |
7424 | if (!gets (buf) || !*buf) | |
7425 | break; | |
7426 | if (buf[0] == '|' || buf[1] == '.') | |
7427 | continue; | |
7428 | for (cp = buf; *cp; cp++) | |
7429 | if (*cp == '\t') | |
7430 | *cp = ' '; | |
7431 | if (is_label (buf)) | |
7432 | continue; | |
7433 | memset (&the_ins, '\0', sizeof (the_ins)); | |
7434 | m68k_ip (&the_ins, buf); | |
7435 | if (the_ins.error) | |
7436 | { | |
7437 | printf (_("Error %s in %s\n"), the_ins.error, buf); | |
7438 | } | |
7439 | else | |
7440 | { | |
7441 | printf (_("Opcode(%d.%s): "), the_ins.numo, the_ins.args); | |
7442 | for (n = 0; n < the_ins.numo; n++) | |
7443 | printf (" 0x%x", the_ins.opcode[n] & 0xffff); | |
7444 | printf (" "); | |
7445 | print_the_insn (&the_ins.opcode[0], stdout); | |
7446 | (void) putchar ('\n'); | |
7447 | } | |
7448 | for (n = 0; n < strlen (the_ins.args) / 2; n++) | |
7449 | { | |
7450 | if (the_ins.operands[n].error) | |
7451 | { | |
7452 | printf ("op%d Error %s in %s\n", n, the_ins.operands[n].error, buf); | |
7453 | continue; | |
7454 | } | |
7455 | printf ("mode %d, reg %d, ", the_ins.operands[n].mode, the_ins.operands[n].reg); | |
7456 | if (the_ins.operands[n].b_const) | |
7457 | printf ("Constant: '%.*s', ", 1 + the_ins.operands[n].e_const - the_ins.operands[n].b_const, the_ins.operands[n].b_const); | |
7458 | printf ("ireg %d, isiz %d, imul %d, ", the_ins.operands[n].ireg, the_ins.operands[n].isiz, the_ins.operands[n].imul); | |
7459 | if (the_ins.operands[n].b_iadd) | |
7460 | printf ("Iadd: '%.*s',", 1 + the_ins.operands[n].e_iadd - the_ins.operands[n].b_iadd, the_ins.operands[n].b_iadd); | |
7461 | (void) putchar ('\n'); | |
7462 | } | |
7463 | } | |
7464 | m68k_ip_end (); | |
7465 | return 0; | |
7466 | } | |
7467 | ||
7468 | is_label (str) | |
7469 | char *str; | |
7470 | { | |
7471 | while (*str == ' ') | |
7472 | str++; | |
7473 | while (*str && *str != ' ') | |
7474 | str++; | |
7475 | if (str[-1] == ':' || str[1] == '=') | |
7476 | return 1; | |
7477 | return 0; | |
7478 | } | |
7479 | ||
7480 | #endif | |
7481 | ||
7482 | /* Possible states for relaxation: | |
7483 | ||
7484 | 0 0 branch offset byte (bra, etc) | |
7485 | 0 1 word | |
7486 | 0 2 long | |
7487 | ||
7488 | 1 0 indexed offsets byte a0@(32,d4:w:1) etc | |
7489 | 1 1 word | |
7490 | 1 2 long | |
7491 | ||
7492 | 2 0 two-offset index word-word a0@(32,d4)@(45) etc | |
7493 | 2 1 word-long | |
7494 | 2 2 long-word | |
7495 | 2 3 long-long | |
7496 | ||
7497 | */ | |
7498 | ||
7499 | /* We have no need to default values of symbols. */ | |
7500 | ||
252b5132 RH |
7501 | symbolS * |
7502 | md_undefined_symbol (name) | |
36823076 | 7503 | char *name ATTRIBUTE_UNUSED; |
252b5132 RH |
7504 | { |
7505 | return 0; | |
7506 | } | |
7507 | ||
7508 | /* Round up a section size to the appropriate boundary. */ | |
7509 | valueT | |
7510 | md_section_align (segment, size) | |
36823076 | 7511 | segT segment ATTRIBUTE_UNUSED; |
252b5132 RH |
7512 | valueT size; |
7513 | { | |
7514 | #ifdef OBJ_AOUT | |
7515 | #ifdef BFD_ASSEMBLER | |
7516 | /* For a.out, force the section size to be aligned. If we don't do | |
7517 | this, BFD will align it for us, but it will not write out the | |
7518 | final bytes of the section. This may be a bug in BFD, but it is | |
7519 | easier to fix it here since that is how the other a.out targets | |
7520 | work. */ | |
7521 | int align; | |
7522 | ||
7523 | align = bfd_get_section_alignment (stdoutput, segment); | |
7524 | size = ((size + (1 << align) - 1) & ((valueT) -1 << align)); | |
7525 | #endif | |
7526 | #endif | |
7527 | ||
7528 | return size; | |
7529 | } | |
7530 | ||
7531 | /* Exactly what point is a PC-relative offset relative TO? | |
7532 | On the 68k, it is relative to the address of the first extension | |
7533 | word. The difference between the addresses of the offset and the | |
92774660 | 7534 | first extension word is stored in fx_pcrel_adjust. */ |
252b5132 RH |
7535 | long |
7536 | md_pcrel_from (fixP) | |
7537 | fixS *fixP; | |
7538 | { | |
7539 | int adjust; | |
7540 | ||
8390138c AS |
7541 | /* Because fx_pcrel_adjust is a char, and may be unsigned, we explicitly |
7542 | sign extend the value here. */ | |
7543 | adjust = ((fixP->fx_pcrel_adjust & 0xff) ^ 0x80) - 0x80; | |
252b5132 RH |
7544 | if (adjust == 64) |
7545 | adjust = -1; | |
7546 | return fixP->fx_where + fixP->fx_frag->fr_address - adjust; | |
7547 | } | |
7548 | ||
7549 | #ifndef BFD_ASSEMBLER | |
7550 | #ifdef OBJ_COFF | |
7551 | ||
252b5132 RH |
7552 | void |
7553 | tc_coff_symbol_emit_hook (ignore) | |
8fce3f5e | 7554 | symbolS *ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
7555 | { |
7556 | } | |
7557 | ||
7558 | int | |
7559 | tc_coff_sizemachdep (frag) | |
7560 | fragS *frag; | |
7561 | { | |
7562 | switch (frag->fr_subtype & 0x3) | |
7563 | { | |
7564 | case BYTE: | |
7565 | return 1; | |
7566 | case SHORT: | |
7567 | return 2; | |
7568 | case LONG: | |
7569 | return 4; | |
7570 | default: | |
7571 | abort (); | |
7572 | return 0; | |
7573 | } | |
7574 | } | |
7575 | ||
7576 | #endif | |
7577 | #endif | |
0d96863f | 7578 | #ifdef OBJ_ELF |
8a104df9 KH |
7579 | void |
7580 | m68k_elf_final_processing () | |
0d96863f | 7581 | { |
36759679 | 7582 | /* Set file-specific flags if this is a cpu32 processor. */ |
8a104df9 KH |
7583 | if (cpu_of_arch (current_architecture) & cpu32) |
7584 | elf_elfheader (stdoutput)->e_flags |= EF_CPU32; | |
7585 | else if ((cpu_of_arch (current_architecture) & m68000up) | |
7586 | && !(cpu_of_arch (current_architecture) & m68020up)) | |
7587 | elf_elfheader (stdoutput)->e_flags |= EF_M68000; | |
0d96863f CM |
7588 | } |
7589 | #endif | |
c04898f8 AS |
7590 | |
7591 | int | |
7592 | tc_m68k_regname_to_dw2regnum (const char *regname) | |
7593 | { | |
7594 | unsigned int regnum; | |
7595 | static const char *const regnames[] = | |
7596 | { | |
7597 | "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", | |
7598 | "a0", "a1", "a2", "a3", "a4", "a5", "a6", "sp", | |
7599 | "fp0", "fp1", "fp2", "fp3", "fp4", "fp5", "fp6", "fp7", | |
7600 | "pc" | |
7601 | }; | |
7602 | ||
7603 | for (regnum = 0; regnum < ARRAY_SIZE (regnames); regnum++) | |
7604 | if (strcmp (regname, regnames[regnum]) == 0) | |
7605 | return regnum; | |
7606 | ||
7607 | return -1; | |
7608 | } | |
7609 | ||
7610 | void | |
7611 | tc_m68k_frame_initial_instructions (void) | |
7612 | { | |
7613 | static int sp_regno = -1; | |
7614 | ||
7615 | if (sp_regno < 0) | |
7616 | sp_regno = tc_m68k_regname_to_dw2regnum ("sp"); | |
7617 | ||
7618 | cfi_add_CFA_def_cfa (sp_regno, -DWARF2_CIE_DATA_ALIGNMENT); | |
7619 | cfi_add_CFA_offset (DWARF2_DEFAULT_RETURN_COLUMN, DWARF2_CIE_DATA_ALIGNMENT); | |
7620 | } |