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, |
f17c130b | 3 | 2000, 2001, 2002, 2003, 2004, 2005 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 | ||
31302357 AS |
36 | #ifdef M68KCOFF |
37 | #include "obj-coff.h" | |
38 | #endif | |
39 | ||
252b5132 RH |
40 | /* This string holds the chars that always start a comment. If the |
41 | pre-processor is disabled, these aren't very useful. The macro | |
42 | tc_comment_chars points to this. We use this, rather than the | |
43 | usual comment_chars, so that the --bitwise-or option will work. */ | |
44 | #if defined (TE_SVR4) || defined (TE_DELTA) | |
45 | const char *m68k_comment_chars = "|#"; | |
46 | #else | |
47 | const char *m68k_comment_chars = "|"; | |
48 | #endif | |
49 | ||
50 | /* This array holds the chars that only start a comment at the beginning of | |
51 | a line. If the line seems to have the form '# 123 filename' | |
52 | .line and .file directives will appear in the pre-processed output */ | |
53 | /* Note that input_file.c hand checks for '#' at the beginning of the | |
54 | first line of the input file. This is because the compiler outputs | |
92774660 KH |
55 | #NO_APP at the beginning of its output. */ |
56 | /* Also note that comments like this one will always work. */ | |
252b5132 RH |
57 | const char line_comment_chars[] = "#*"; |
58 | ||
63a0b638 | 59 | const char line_separator_chars[] = ";"; |
252b5132 | 60 | |
36759679 | 61 | /* Chars that can be used to separate mant from exp in floating point nums. */ |
5a38dc70 | 62 | const char EXP_CHARS[] = "eE"; |
252b5132 RH |
63 | |
64 | /* Chars that mean this number is a floating point constant, as | |
65 | in "0f12.456" or "0d1.2345e12". */ | |
66 | ||
5a38dc70 | 67 | const char FLT_CHARS[] = "rRsSfFdDxXeEpP"; |
252b5132 RH |
68 | |
69 | /* Also be aware that MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT may have to be | |
70 | changed in read.c . Ideally it shouldn't have to know about it at all, | |
71 | but nothing is ideal around here. */ | |
72 | ||
36759679 | 73 | const int md_reloc_size = 8; /* Size of relocation record. */ |
252b5132 RH |
74 | |
75 | /* Are we trying to generate PIC code? If so, absolute references | |
76 | ought to be made into linkage table references or pc-relative | |
92774660 | 77 | references. Not implemented. For ELF there are other means |
252b5132 RH |
78 | to denote pic relocations. */ |
79 | int flag_want_pic; | |
80 | ||
36759679 NC |
81 | static int flag_short_refs; /* -l option. */ |
82 | static int flag_long_jumps; /* -S option. */ | |
28e7409f | 83 | static int flag_keep_pcrel; /* --pcrel option. */ |
252b5132 RH |
84 | |
85 | #ifdef REGISTER_PREFIX_OPTIONAL | |
86 | int flag_reg_prefix_optional = REGISTER_PREFIX_OPTIONAL; | |
87 | #else | |
88 | int flag_reg_prefix_optional; | |
89 | #endif | |
90 | ||
91 | /* Whether --register-prefix-optional was used on the command line. */ | |
92 | static int reg_prefix_optional_seen; | |
93 | ||
94 | /* The floating point coprocessor to use by default. */ | |
95 | static enum m68k_register m68k_float_copnum = COP1; | |
96 | ||
97 | /* If this is non-zero, then references to number(%pc) will be taken | |
98 | to refer to number, rather than to %pc + number. */ | |
99 | static int m68k_abspcadd; | |
100 | ||
101 | /* If this is non-zero, then the quick forms of the move, add, and sub | |
102 | instructions are used when possible. */ | |
103 | static int m68k_quick = 1; | |
104 | ||
105 | /* If this is non-zero, then if the size is not specified for a base | |
106 | or outer displacement, the assembler assumes that the size should | |
107 | be 32 bits. */ | |
108 | static int m68k_rel32 = 1; | |
109 | ||
110 | /* This is non-zero if m68k_rel32 was set from the command line. */ | |
111 | static int m68k_rel32_from_cmdline; | |
112 | ||
113 | /* The default width to use for an index register when using a base | |
114 | displacement. */ | |
115 | static enum m68k_size m68k_index_width_default = SIZE_LONG; | |
116 | ||
117 | /* We want to warn if any text labels are misaligned. In order to get | |
118 | the right line number, we need to record the line number for each | |
119 | label. */ | |
252b5132 RH |
120 | struct label_line |
121 | { | |
122 | struct label_line *next; | |
123 | symbolS *label; | |
124 | char *file; | |
125 | unsigned int line; | |
126 | int text; | |
127 | }; | |
128 | ||
129 | /* The list of labels. */ | |
130 | ||
131 | static struct label_line *labels; | |
132 | ||
133 | /* The current label. */ | |
134 | ||
135 | static struct label_line *current_label; | |
136 | ||
60fed2d3 NC |
137 | /* Pointer to list holding the opcodes sorted by name. */ |
138 | static struct m68k_opcode const ** m68k_sorted_opcodes; | |
139 | ||
36759679 NC |
140 | /* Its an arbitrary name: This means I don't approve of it. |
141 | See flames below. */ | |
252b5132 RH |
142 | static struct obstack robyn; |
143 | ||
252b5132 RH |
144 | struct m68k_incant |
145 | { | |
146 | const char *m_operands; | |
147 | unsigned long m_opcode; | |
148 | short m_opnum; | |
149 | short m_codenum; | |
150 | int m_arch; | |
151 | struct m68k_incant *m_next; | |
152 | }; | |
153 | ||
154 | #define getone(x) ((((x)->m_opcode)>>16)&0xffff) | |
155 | #define gettwo(x) (((x)->m_opcode)&0xffff) | |
156 | ||
157 | static const enum m68k_register m68000_control_regs[] = { 0 }; | |
158 | static const enum m68k_register m68010_control_regs[] = { | |
159 | SFC, DFC, USP, VBR, | |
160 | 0 | |
161 | }; | |
162 | static const enum m68k_register m68020_control_regs[] = { | |
163 | SFC, DFC, USP, VBR, CACR, CAAR, MSP, ISP, | |
164 | 0 | |
165 | }; | |
166 | static const enum m68k_register m68040_control_regs[] = { | |
167 | SFC, DFC, CACR, TC, ITT0, ITT1, DTT0, DTT1, | |
168 | USP, VBR, MSP, ISP, MMUSR, URP, SRP, | |
169 | 0 | |
170 | }; | |
171 | static const enum m68k_register m68060_control_regs[] = { | |
172 | SFC, DFC, CACR, TC, ITT0, ITT1, DTT0, DTT1, BUSCR, | |
173 | USP, VBR, URP, SRP, PCR, | |
174 | 0 | |
175 | }; | |
6da466c7 | 176 | static const enum m68k_register mcf_control_regs[] = { |
3e602632 | 177 | CACR, TC, ACR0, ACR1, ACR2, ACR3, VBR, ROMBAR, |
252b5132 RH |
178 | RAMBAR0, RAMBAR1, MBAR, |
179 | 0 | |
180 | }; | |
e80e0390 NC |
181 | static const enum m68k_register mcf5249_control_regs[] = { |
182 | CACR, ACR0, ACR1, VBR, RAMBAR0, RAMBAR1, MBAR, MBAR2, | |
183 | 0 | |
184 | }; | |
3e602632 NC |
185 | static const enum m68k_register mcf528x_control_regs[] = { |
186 | CACR, ACR0, ACR1, VBR, FLASHBAR, RAMBAR, | |
187 | 0 | |
188 | }; | |
189 | static const enum m68k_register mcfv4e_control_regs[] = { | |
190 | CACR, TC, ITT0, ITT1, DTT0, DTT1, BUSCR, VBR, PC, ROMBAR, | |
191 | ROMBAR1, RAMBAR0, RAMBAR1, MPCR, EDRAMBAR, SECMBAR, MBAR, MBAR0, MBAR1, | |
192 | PCR1U0, PCR1L0, PCR1U1, PCR1L1, PCR2U0, PCR2L0, PCR2U1, PCR2L1, | |
193 | PCR3U0, PCR3L0, PCR3U1, PCR3L1, | |
194 | 0 | |
195 | }; | |
252b5132 RH |
196 | #define cpu32_control_regs m68010_control_regs |
197 | ||
198 | static const enum m68k_register *control_regs; | |
199 | ||
36759679 | 200 | /* Internal form of a 68020 instruction. */ |
252b5132 RH |
201 | struct m68k_it |
202 | { | |
203 | const char *error; | |
36759679 | 204 | const char *args; /* List of opcode info. */ |
252b5132 RH |
205 | int numargs; |
206 | ||
36759679 | 207 | int numo; /* Number of shorts in opcode. */ |
252b5132 RH |
208 | short opcode[11]; |
209 | ||
210 | struct m68k_op operands[6]; | |
211 | ||
36759679 | 212 | int nexp; /* Number of exprs in use. */ |
252b5132 RH |
213 | struct m68k_exp exprs[4]; |
214 | ||
36759679 | 215 | int nfrag; /* Number of frags we have to produce. */ |
252b5132 RH |
216 | struct |
217 | { | |
36759679 | 218 | int fragoff; /* Where in the current opcode the frag ends. */ |
252b5132 RH |
219 | symbolS *fadd; |
220 | offsetT foff; | |
221 | int fragty; | |
222 | } | |
223 | fragb[4]; | |
224 | ||
36759679 | 225 | int nrel; /* Num of reloc strucs in use. */ |
252b5132 RH |
226 | struct |
227 | { | |
228 | int n; | |
229 | expressionS exp; | |
230 | char wid; | |
231 | char pcrel; | |
232 | /* In a pc relative address the difference between the address | |
233 | of the offset and the address that the offset is relative | |
234 | to. This depends on the addressing mode. Basically this | |
235 | is the value to put in the offset field to address the | |
236 | first byte of the offset, without regarding the special | |
237 | significance of some values (in the branch instruction, for | |
238 | example). */ | |
239 | int pcrel_fix; | |
240 | #ifdef OBJ_ELF | |
241 | /* Whether this expression needs special pic relocation, and if | |
242 | so, which. */ | |
243 | enum pic_relocation pic_reloc; | |
244 | #endif | |
245 | } | |
36759679 | 246 | reloc[5]; /* Five is enough??? */ |
252b5132 RH |
247 | }; |
248 | ||
6b6e92f4 | 249 | #define cpu_of_arch(x) ((x) & (m68000up | mcfisa_a)) |
252b5132 RH |
250 | #define float_of_arch(x) ((x) & mfloat) |
251 | #define mmu_of_arch(x) ((x) & mmmu) | |
6b6e92f4 NC |
252 | #define arch_coldfire_p(x) ((x) & mcfisa_a) |
253 | #define arch_coldfire_fpu(x) ((x) & cfloat) | |
252b5132 | 254 | |
36759679 | 255 | /* Macros for determining if cpu supports a specific addressing mode. */ |
6b6e92f4 | 256 | #define HAVE_LONG_BRANCH(x) ((x) & (m68020|m68030|m68040|m68060|cpu32|mcfisa_b)) |
252b5132 | 257 | |
36759679 | 258 | static struct m68k_it the_ins; /* The instruction being assembled. */ |
252b5132 RH |
259 | |
260 | #define op(ex) ((ex)->exp.X_op) | |
261 | #define adds(ex) ((ex)->exp.X_add_symbol) | |
262 | #define subs(ex) ((ex)->exp.X_op_symbol) | |
263 | #define offs(ex) ((ex)->exp.X_add_number) | |
264 | ||
36759679 | 265 | /* Macros for adding things to the m68k_it struct. */ |
31302357 | 266 | #define addword(w) (the_ins.opcode[the_ins.numo++] = (w)) |
252b5132 | 267 | |
36759679 NC |
268 | /* Like addword, but goes BEFORE general operands. */ |
269 | ||
252b5132 | 270 | static void |
31302357 | 271 | insop (int w, const struct m68k_incant *opcode) |
252b5132 RH |
272 | { |
273 | int z; | |
07726851 | 274 | for (z = the_ins.numo; z > opcode->m_codenum; --z) |
8a104df9 KH |
275 | the_ins.opcode[z] = the_ins.opcode[z - 1]; |
276 | for (z = 0; z < the_ins.nrel; z++) | |
277 | the_ins.reloc[z].n += 2; | |
252b5132 RH |
278 | for (z = 0; z < the_ins.nfrag; z++) |
279 | the_ins.fragb[z].fragoff++; | |
8a104df9 | 280 | the_ins.opcode[opcode->m_codenum] = w; |
252b5132 RH |
281 | the_ins.numo++; |
282 | } | |
283 | ||
284 | /* The numo+1 kludge is so we can hit the low order byte of the prev word. | |
285 | Blecch. */ | |
286 | static void | |
31302357 | 287 | add_fix (int width, struct m68k_exp *exp, int pc_rel, int pc_fix) |
252b5132 | 288 | { |
31302357 AS |
289 | the_ins.reloc[the_ins.nrel].n = (width == 'B' || width == '3' |
290 | ? the_ins.numo * 2 - 1 | |
291 | : (width == 'b' | |
292 | ? the_ins.numo * 2 + 1 | |
293 | : the_ins.numo * 2)); | |
252b5132 RH |
294 | the_ins.reloc[the_ins.nrel].exp = exp->exp; |
295 | the_ins.reloc[the_ins.nrel].wid = width; | |
296 | the_ins.reloc[the_ins.nrel].pcrel_fix = pc_fix; | |
297 | #ifdef OBJ_ELF | |
298 | the_ins.reloc[the_ins.nrel].pic_reloc = exp->pic_reloc; | |
299 | #endif | |
300 | the_ins.reloc[the_ins.nrel++].pcrel = pc_rel; | |
301 | } | |
302 | ||
303 | /* Cause an extra frag to be generated here, inserting up to 10 bytes | |
304 | (that value is chosen in the frag_var call in md_assemble). TYPE | |
305 | is the subtype of the frag to be generated; its primary type is | |
306 | rs_machine_dependent. | |
307 | ||
308 | The TYPE parameter is also used by md_convert_frag_1 and | |
309 | md_estimate_size_before_relax. The appropriate type of fixup will | |
310 | be emitted by md_convert_frag_1. | |
311 | ||
312 | ADD becomes the FR_SYMBOL field of the frag, and OFF the FR_OFFSET. */ | |
313 | static void | |
31302357 | 314 | add_frag (symbolS *add, offsetT off, int type) |
252b5132 | 315 | { |
8a104df9 KH |
316 | the_ins.fragb[the_ins.nfrag].fragoff = the_ins.numo; |
317 | the_ins.fragb[the_ins.nfrag].fadd = add; | |
318 | the_ins.fragb[the_ins.nfrag].foff = off; | |
319 | the_ins.fragb[the_ins.nfrag++].fragty = type; | |
252b5132 RH |
320 | } |
321 | ||
322 | #define isvar(ex) \ | |
323 | (op (ex) != O_constant && op (ex) != O_big) | |
324 | ||
31302357 AS |
325 | static char *crack_operand (char *str, struct m68k_op *opP); |
326 | static int get_num (struct m68k_exp *exp, int ok); | |
327 | static int reverse_16_bits (int in); | |
328 | static int reverse_8_bits (int in); | |
329 | static void install_gen_operand (int mode, int val); | |
330 | static void install_operand (int mode, int val); | |
331 | static void s_bss (int); | |
332 | static void s_data1 (int); | |
333 | static void s_data2 (int); | |
334 | static void s_even (int); | |
335 | static void s_proc (int); | |
336 | static void s_chip (int); | |
337 | static void s_fopt (int); | |
338 | static void s_opt (int); | |
339 | static void s_reg (int); | |
340 | static void s_restore (int); | |
341 | static void s_save (int); | |
342 | static void s_mri_if (int); | |
343 | static void s_mri_else (int); | |
344 | static void s_mri_endi (int); | |
345 | static void s_mri_break (int); | |
346 | static void s_mri_next (int); | |
347 | static void s_mri_for (int); | |
348 | static void s_mri_endf (int); | |
349 | static void s_mri_repeat (int); | |
350 | static void s_mri_until (int); | |
351 | static void s_mri_while (int); | |
352 | static void s_mri_endw (int); | |
252b5132 RH |
353 | |
354 | static int current_architecture; | |
6b6e92f4 | 355 | static int current_chip; |
252b5132 | 356 | |
dc84e067 NC |
357 | struct m68k_cpu |
358 | { | |
359 | unsigned long arch; | |
6b6e92f4 | 360 | unsigned long chip; |
dc84e067 NC |
361 | const char *name; |
362 | int alias; | |
363 | }; | |
252b5132 | 364 | |
dc84e067 NC |
365 | static const struct m68k_cpu archs[] = |
366 | { | |
6b6e92f4 NC |
367 | { m68000, m68000, "68000", 0 }, |
368 | { m68010, m68010, "68010", 0 }, | |
369 | { m68020, m68020, "68020", 0 }, | |
370 | { m68030, m68030, "68030", 0 }, | |
371 | { m68040, m68040, "68040", 0 }, | |
372 | { m68060, m68060, "68060", 0 }, | |
373 | { cpu32, cpu32, "cpu32", 0 }, | |
374 | { m68881, m68881, "68881", 0 }, | |
375 | { m68851, m68851, "68851", 0 }, | |
376 | { mcfisa_a, mcf5200, "5200", 0 }, | |
377 | { mcfisa_a|mcfhwdiv|mcfmac, mcf5206e, "5206e", 0 }, | |
378 | { mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf521x, "521x", 0 }, | |
379 | { mcfisa_a|mcfhwdiv|mcfemac, mcf5249, "5249", 0 }, | |
380 | { mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac|mcfusp, mcf528x, "528x", 0 }, | |
381 | { mcfisa_a|mcfhwdiv|mcfmac, mcf5307, "5307", 0 }, | |
382 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfmac, mcf5407, "5407", 0 }, | |
383 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfemac|mcfusp|cfloat, mcf5470, "547x", 0 }, | |
384 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfemac|mcfusp|cfloat, mcf5480, "548x", 0 }, | |
dc84e067 NC |
385 | /* Aliases (effectively, so far as gas is concerned) for the above |
386 | cpus. */ | |
6b6e92f4 NC |
387 | { m68020, m68020, "68k", 1 }, |
388 | { m68000, m68000, "68008", 1 }, | |
389 | { m68000, m68000, "68302", 1 }, | |
390 | { m68000, m68000, "68306", 1 }, | |
391 | { m68000, m68000, "68307", 1 }, | |
392 | { m68000, m68000, "68322", 1 }, | |
393 | { m68000, m68000, "68356", 1 }, | |
394 | { m68000, m68000, "68ec000", 1 }, | |
395 | { m68000, m68000, "68hc000", 1 }, | |
396 | { m68000, m68000, "68hc001", 1 }, | |
397 | { m68020, m68020, "68ec020", 1 }, | |
398 | { m68030, m68030, "68ec030", 1 }, | |
399 | { m68040, m68040, "68ec040", 1 }, | |
400 | { m68060, m68060, "68ec060", 1 }, | |
401 | { cpu32, cpu32, "68330", 1 }, | |
402 | { cpu32, cpu32, "68331", 1 }, | |
403 | { cpu32, cpu32, "68332", 1 }, | |
404 | { cpu32, cpu32, "68333", 1 }, | |
405 | { cpu32, cpu32, "68334", 1 }, | |
406 | { cpu32, cpu32, "68336", 1 }, | |
407 | { cpu32, cpu32, "68340", 1 }, | |
408 | { cpu32, cpu32, "68341", 1 }, | |
409 | { cpu32, cpu32, "68349", 1 }, | |
410 | { cpu32, cpu32, "68360", 1 }, | |
411 | { m68881, m68881, "68882", 1 }, | |
412 | { mcfisa_a, mcf5200, "5202", 1 }, | |
413 | { mcfisa_a, mcf5200, "5204", 1 }, | |
414 | { mcfisa_a, mcf5200, "5206", 1 }, | |
415 | { mcfisa_a|mcfhwdiv|mcfisa_aa|mcfemac, mcf521x, "5214", 1 }, | |
416 | { mcfisa_a|mcfhwdiv|mcfisa_aa|mcfemac, mcf521x, "5216", 1 }, | |
417 | { mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac, mcf528x, "5280", 1 }, | |
418 | { mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac, mcf528x, "5281", 1 }, | |
419 | { mcfisa_a|mcfisa_aa|mcfhwdiv|mcfemac, mcf528x, "5282", 1 }, | |
420 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfmac, mcf5407, "cfv4", 1 }, | |
421 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfemac|mcfusp|cfloat, mcf5470, "5470", 1 }, | |
422 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfemac|mcfusp|cfloat, mcf5470, "5471", 1 }, | |
423 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfemac|mcfusp|cfloat, mcf5470, "5472", 1 }, | |
424 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfemac|mcfusp|cfloat, mcf5470, "5473", 1 }, | |
425 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfemac|mcfusp|cfloat, mcf5470, "5474", 1 }, | |
426 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfemac|mcfusp|cfloat, mcf5470, "5475", 1 }, | |
427 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfemac|mcfusp|cfloat, mcf5470, "5480", 1 }, | |
428 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfemac|mcfusp|cfloat, mcf5470, "5481", 1 }, | |
429 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfemac|mcfusp|cfloat, mcf5470, "5482", 1 }, | |
430 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfemac|mcfusp|cfloat, mcf5470, "5483", 1 }, | |
431 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfemac|mcfusp|cfloat, mcf5470, "5484", 1 }, | |
432 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfemac|mcfusp|cfloat, mcf5470, "5485", 1 }, | |
433 | { mcfisa_a|mcfhwdiv|mcfisa_b|mcfemac|mcfusp|cfloat, mcf5470, "cfv4e", 1 }, | |
dc84e067 | 434 | }; |
252b5132 RH |
435 | |
436 | static const int n_archs = sizeof (archs) / sizeof (archs[0]); | |
437 | ||
151337e8 NC |
438 | /* This is the assembler relaxation table for m68k. m68k is a rich CISC |
439 | architecture and we have a lot of relaxation modes. */ | |
252b5132 | 440 | |
151337e8 NC |
441 | /* Macros used in the relaxation code. */ |
442 | #define TAB(x,y) (((x) << 2) + (y)) | |
443 | #define TABTYPE(x) ((x) >> 2) | |
444 | ||
445 | /* Relaxation states. */ | |
446 | #define BYTE 0 | |
447 | #define SHORT 1 | |
448 | #define LONG 2 | |
449 | #define SZ_UNDEF 3 | |
450 | ||
451 | /* Here are all the relaxation modes we support. First we can relax ordinary | |
452 | branches. On 68020 and higher and on CPU32 all branch instructions take | |
453 | three forms, so on these CPUs all branches always remain as such. When we | |
454 | have to expand to the LONG form on a 68000, though, we substitute an | |
455 | absolute jump instead. This is a direct replacement for unconditional | |
456 | branches and a branch over a jump for conditional branches. However, if the | |
457 | user requires PIC and disables this with --pcrel, we can only relax between | |
458 | BYTE and SHORT forms, punting if that isn't enough. This gives us four | |
459 | different relaxation modes for branches: */ | |
460 | ||
36759679 NC |
461 | #define BRANCHBWL 0 /* Branch byte, word, or long. */ |
462 | #define BRABSJUNC 1 /* Absolute jump for LONG, unconditional. */ | |
463 | #define BRABSJCOND 2 /* Absolute jump for LONG, conditional. */ | |
464 | #define BRANCHBW 3 /* Branch byte or word. */ | |
151337e8 NC |
465 | |
466 | /* We also relax coprocessor branches and DBcc's. All CPUs that support | |
467 | coprocessor branches support them in word and long forms, so we have only | |
468 | one relaxation mode for them. DBcc's are word only on all CPUs. We can | |
469 | relax them to the LONG form with a branch-around sequence. This sequence | |
470 | can use a long branch (if available) or an absolute jump (if acceptable). | |
471 | This gives us two relaxation modes. If long branches are not available and | |
472 | absolute jumps are not acceptable, we don't relax DBcc's. */ | |
473 | ||
36759679 NC |
474 | #define FBRANCH 4 /* Coprocessor branch. */ |
475 | #define DBCCLBR 5 /* DBcc relaxable with a long branch. */ | |
476 | #define DBCCABSJ 6 /* DBcc relaxable with an absolute jump. */ | |
151337e8 NC |
477 | |
478 | /* That's all for instruction relaxation. However, we also relax PC-relative | |
479 | operands. Specifically, we have three operand relaxation modes. On the | |
480 | 68000 PC-relative operands can only be 16-bit, but on 68020 and higher and | |
481 | on CPU32 they may be 16-bit or 32-bit. For the latter we relax between the | |
482 | two. Also PC+displacement+index operands in their simple form (with a non- | |
483 | suppressed index without memory indirection) are supported on all CPUs, but | |
484 | on the 68000 the displacement can be 8-bit only, whereas on 68020 and higher | |
485 | and on CPU32 we relax it to SHORT and LONG forms as well using the extended | |
486 | form of the PC+displacement+index operand. Finally, some absolute operands | |
487 | can be relaxed down to 16-bit PC-relative. */ | |
488 | ||
36759679 NC |
489 | #define PCREL1632 7 /* 16-bit or 32-bit PC-relative. */ |
490 | #define PCINDEX 8 /* PC + displacement + index. */ | |
491 | #define ABSTOPCREL 9 /* Absolute relax down to 16-bit PC-relative. */ | |
252b5132 RH |
492 | |
493 | /* Note that calls to frag_var need to specify the maximum expansion | |
494 | needed; this is currently 10 bytes for DBCC. */ | |
495 | ||
496 | /* The fields are: | |
497 | How far Forward this mode will reach: | |
498 | How far Backward this mode will reach: | |
499 | How many bytes this mode will add to the size of the frag | |
500 | Which mode to go to if the offset won't fit in this one | |
d7861ad2 AM |
501 | |
502 | Please check tc-m68k.h:md_prepare_relax_scan if changing this table. */ | |
252b5132 RH |
503 | relax_typeS md_relax_table[] = |
504 | { | |
ac62c346 AM |
505 | { 127, -128, 0, TAB (BRANCHBWL, SHORT) }, |
506 | { 32767, -32768, 2, TAB (BRANCHBWL, LONG) }, | |
507 | { 0, 0, 4, 0 }, | |
508 | { 1, 1, 0, 0 }, | |
509 | ||
510 | { 127, -128, 0, TAB (BRABSJUNC, SHORT) }, | |
511 | { 32767, -32768, 2, TAB (BRABSJUNC, LONG) }, | |
512 | { 0, 0, 4, 0 }, | |
513 | { 1, 1, 0, 0 }, | |
514 | ||
515 | { 127, -128, 0, TAB (BRABSJCOND, SHORT) }, | |
516 | { 32767, -32768, 2, TAB (BRABSJCOND, LONG) }, | |
517 | { 0, 0, 6, 0 }, | |
518 | { 1, 1, 0, 0 }, | |
519 | ||
520 | { 127, -128, 0, TAB (BRANCHBW, SHORT) }, | |
521 | { 0, 0, 2, 0 }, | |
522 | { 1, 1, 0, 0 }, | |
523 | { 1, 1, 0, 0 }, | |
524 | ||
36759679 | 525 | { 1, 1, 0, 0 }, /* FBRANCH doesn't come BYTE. */ |
ac62c346 AM |
526 | { 32767, -32768, 2, TAB (FBRANCH, LONG) }, |
527 | { 0, 0, 4, 0 }, | |
528 | { 1, 1, 0, 0 }, | |
529 | ||
36759679 | 530 | { 1, 1, 0, 0 }, /* DBCC doesn't come BYTE. */ |
ac62c346 AM |
531 | { 32767, -32768, 2, TAB (DBCCLBR, LONG) }, |
532 | { 0, 0, 10, 0 }, | |
533 | { 1, 1, 0, 0 }, | |
534 | ||
36759679 | 535 | { 1, 1, 0, 0 }, /* DBCC doesn't come BYTE. */ |
ac62c346 AM |
536 | { 32767, -32768, 2, TAB (DBCCABSJ, LONG) }, |
537 | { 0, 0, 10, 0 }, | |
538 | { 1, 1, 0, 0 }, | |
539 | ||
36759679 | 540 | { 1, 1, 0, 0 }, /* PCREL1632 doesn't come BYTE. */ |
ac62c346 AM |
541 | { 32767, -32768, 2, TAB (PCREL1632, LONG) }, |
542 | { 0, 0, 6, 0 }, | |
543 | { 1, 1, 0, 0 }, | |
544 | ||
545 | { 125, -130, 0, TAB (PCINDEX, SHORT) }, | |
546 | { 32765, -32770, 2, TAB (PCINDEX, LONG) }, | |
547 | { 0, 0, 4, 0 }, | |
548 | { 1, 1, 0, 0 }, | |
549 | ||
36759679 | 550 | { 1, 1, 0, 0 }, /* ABSTOPCREL doesn't come BYTE. */ |
ac62c346 AM |
551 | { 32767, -32768, 2, TAB (ABSTOPCREL, LONG) }, |
552 | { 0, 0, 4, 0 }, | |
553 | { 1, 1, 0, 0 }, | |
252b5132 RH |
554 | }; |
555 | ||
556 | /* These are the machine dependent pseudo-ops. These are included so | |
557 | the assembler can work on the output from the SUN C compiler, which | |
36759679 | 558 | generates these. */ |
252b5132 RH |
559 | |
560 | /* This table describes all the machine specific pseudo-ops the assembler | |
561 | has to support. The fields are: | |
562 | pseudo-op name without dot | |
563 | function to call to execute this pseudo-op | |
36759679 | 564 | Integer arg to pass to the function. */ |
252b5132 RH |
565 | const pseudo_typeS md_pseudo_table[] = |
566 | { | |
567 | {"data1", s_data1, 0}, | |
568 | {"data2", s_data2, 0}, | |
569 | {"bss", s_bss, 0}, | |
570 | {"even", s_even, 0}, | |
571 | {"skip", s_space, 0}, | |
572 | {"proc", s_proc, 0}, | |
573 | #if defined (TE_SUN3) || defined (OBJ_ELF) | |
574 | {"align", s_align_bytes, 0}, | |
575 | #endif | |
576 | #ifdef OBJ_ELF | |
577 | {"swbeg", s_ignore, 0}, | |
578 | #endif | |
579 | {"extend", float_cons, 'x'}, | |
580 | {"ldouble", float_cons, 'x'}, | |
581 | ||
582 | /* The following pseudo-ops are supported for MRI compatibility. */ | |
583 | {"chip", s_chip, 0}, | |
584 | {"comline", s_space, 1}, | |
585 | {"fopt", s_fopt, 0}, | |
586 | {"mask2", s_ignore, 0}, | |
587 | {"opt", s_opt, 0}, | |
588 | {"reg", s_reg, 0}, | |
589 | {"restore", s_restore, 0}, | |
590 | {"save", s_save, 0}, | |
591 | ||
592 | {"if", s_mri_if, 0}, | |
593 | {"if.b", s_mri_if, 'b'}, | |
594 | {"if.w", s_mri_if, 'w'}, | |
595 | {"if.l", s_mri_if, 'l'}, | |
596 | {"else", s_mri_else, 0}, | |
597 | {"else.s", s_mri_else, 's'}, | |
598 | {"else.l", s_mri_else, 'l'}, | |
599 | {"endi", s_mri_endi, 0}, | |
600 | {"break", s_mri_break, 0}, | |
601 | {"break.s", s_mri_break, 's'}, | |
602 | {"break.l", s_mri_break, 'l'}, | |
603 | {"next", s_mri_next, 0}, | |
604 | {"next.s", s_mri_next, 's'}, | |
605 | {"next.l", s_mri_next, 'l'}, | |
606 | {"for", s_mri_for, 0}, | |
607 | {"for.b", s_mri_for, 'b'}, | |
608 | {"for.w", s_mri_for, 'w'}, | |
609 | {"for.l", s_mri_for, 'l'}, | |
610 | {"endf", s_mri_endf, 0}, | |
611 | {"repeat", s_mri_repeat, 0}, | |
612 | {"until", s_mri_until, 0}, | |
613 | {"until.b", s_mri_until, 'b'}, | |
614 | {"until.w", s_mri_until, 'w'}, | |
615 | {"until.l", s_mri_until, 'l'}, | |
616 | {"while", s_mri_while, 0}, | |
617 | {"while.b", s_mri_while, 'b'}, | |
618 | {"while.w", s_mri_while, 'w'}, | |
619 | {"while.l", s_mri_while, 'l'}, | |
620 | {"endw", s_mri_endw, 0}, | |
621 | ||
622 | {0, 0, 0} | |
623 | }; | |
624 | ||
252b5132 | 625 | /* The mote pseudo ops are put into the opcode table, since they |
31302357 | 626 | don't start with a . they look like opcodes to gas. */ |
252b5132 | 627 | |
5a38dc70 | 628 | const pseudo_typeS mote_pseudo_table[] = |
252b5132 RH |
629 | { |
630 | ||
631 | {"dcl", cons, 4}, | |
632 | {"dc", cons, 2}, | |
633 | {"dcw", cons, 2}, | |
634 | {"dcb", cons, 1}, | |
635 | ||
636 | {"dsl", s_space, 4}, | |
637 | {"ds", s_space, 2}, | |
638 | {"dsw", s_space, 2}, | |
639 | {"dsb", s_space, 1}, | |
640 | ||
641 | {"xdef", s_globl, 0}, | |
642 | #ifdef OBJ_ELF | |
643 | {"align", s_align_bytes, 0}, | |
644 | #else | |
645 | {"align", s_align_ptwo, 0}, | |
646 | #endif | |
647 | #ifdef M68KCOFF | |
648 | {"sect", obj_coff_section, 0}, | |
649 | {"section", obj_coff_section, 0}, | |
650 | #endif | |
651 | {0, 0, 0} | |
652 | }; | |
653 | ||
bd17c2c3 AM |
654 | /* Truncate and sign-extend at 32 bits, so that building on a 64-bit host |
655 | gives identical results to a 32-bit host. */ | |
656 | #define TRUNC(X) ((valueT) (X) & 0xffffffff) | |
657 | #define SEXT(X) ((TRUNC (X) ^ 0x80000000) - 0x80000000) | |
658 | ||
659 | #define issbyte(x) ((valueT) SEXT (x) + 0x80 < 0x100) | |
660 | #define isubyte(x) ((valueT) TRUNC (x) < 0x100) | |
661 | #define issword(x) ((valueT) SEXT (x) + 0x8000 < 0x10000) | |
662 | #define isuword(x) ((valueT) TRUNC (x) < 0x10000) | |
663 | ||
664 | #define isbyte(x) ((valueT) SEXT (x) + 0xff < 0x1ff) | |
665 | #define isword(x) ((valueT) SEXT (x) + 0xffff < 0x1ffff) | |
252b5132 RH |
666 | #define islong(x) (1) |
667 | ||
252b5132 RH |
668 | static char notend_table[256]; |
669 | static char alt_notend_table[256]; | |
670 | #define notend(s) \ | |
671 | (! (notend_table[(unsigned char) *s] \ | |
672 | || (*s == ':' \ | |
673 | && alt_notend_table[(unsigned char) s[1]]))) | |
674 | ||
6b6e92f4 NC |
675 | /* Return a human readable string holding the list of chips that are |
676 | valid for a particular architecture, suppressing aliases (unless | |
677 | there is only one of them). */ | |
678 | ||
679 | static char * | |
680 | find_cf_chip (int architecture) | |
681 | { | |
682 | static char buf[1024]; | |
683 | int i, j, n_chips, n_alias; | |
684 | char *cp; | |
685 | ||
686 | strcpy (buf, " ("); | |
687 | cp = buf + strlen (buf); | |
688 | ||
689 | for (i = 0, n_chips = 0, n_alias = 0; i < n_archs; ++i) | |
690 | if (archs[i].arch & architecture) | |
691 | { | |
692 | n_chips++; | |
693 | if (archs[i].alias) | |
694 | n_alias++; | |
695 | } | |
696 | ||
697 | if (n_chips == 0) | |
698 | as_fatal (_("no matching ColdFire architectures found")); | |
699 | ||
700 | if (n_alias > 1) | |
701 | n_chips -= n_alias; | |
702 | ||
703 | for (i = 0, j = 0; i < n_archs && j < n_chips; ++i) | |
704 | if (archs[i].arch & architecture) | |
705 | { | |
706 | if (j) | |
707 | { | |
31302357 | 708 | if ((j == n_chips - 1 && !(n_alias > 1)) || ! n_alias) |
6b6e92f4 NC |
709 | { |
710 | if (n_chips == 2) | |
711 | { | |
712 | strncpy (cp, _(" or "), (sizeof (buf) - (cp - buf))); | |
713 | cp += strlen (cp); | |
714 | } | |
715 | else | |
716 | { | |
717 | strncpy (cp, _(", or "), (sizeof (buf) - (cp - buf))); | |
718 | cp += strlen (cp); | |
719 | } | |
720 | } | |
721 | else | |
722 | { | |
723 | strncpy (cp, ", ", (sizeof (buf) - (cp - buf))); | |
724 | cp += strlen (cp); | |
725 | } | |
726 | } | |
727 | strncpy (cp, archs[i].name, (sizeof (buf) - (cp - buf))); | |
728 | cp += strlen (cp); | |
729 | j++; | |
730 | } | |
731 | ||
732 | if (n_alias > 1) | |
733 | { | |
734 | strncpy (cp, _(", or aliases"), (sizeof (buf) - (cp - buf))); | |
735 | cp += strlen (cp); | |
736 | } | |
737 | ||
738 | strncpy (cp, ")", (sizeof (buf) - (cp - buf))); | |
739 | ||
740 | return buf; | |
741 | } | |
742 | ||
252b5132 RH |
743 | #if defined (M68KCOFF) && !defined (BFD_ASSEMBLER) |
744 | ||
745 | #ifdef NO_PCREL_RELOCS | |
746 | ||
747 | int | |
31302357 | 748 | make_pcrel_absolute (fixS *fixP, long *add_number) |
252b5132 RH |
749 | { |
750 | register unsigned char *opcode = fixP->fx_frag->fr_opcode; | |
751 | ||
36759679 | 752 | /* Rewrite the PC relative instructions to absolute address ones. |
67c1ffbe | 753 | these are rumored to be faster, and the apollo linker refuses |
36759679 NC |
754 | to deal with the PC relative relocations. */ |
755 | if (opcode[0] == 0x60 && opcode[1] == 0xff) /* BRA -> JMP. */ | |
252b5132 | 756 | { |
36759679 | 757 | if (flag_keep_pcrel) |
6b6e92f4 | 758 | as_fatal (_("Tried to convert PC relative branch to absolute jump")); |
252b5132 RH |
759 | opcode[0] = 0x4e; |
760 | opcode[1] = 0xf9; | |
761 | } | |
36759679 | 762 | else if (opcode[0] == 0x61 && opcode[1] == 0xff) /* BSR -> JSR. */ |
252b5132 | 763 | { |
36759679 | 764 | if (flag_keep_pcrel) |
6b6e92f4 | 765 | as_fatal (_("Tried to convert PC relative BSR to absolute JSR")); |
252b5132 RH |
766 | opcode[0] = 0x4e; |
767 | opcode[1] = 0xb9; | |
768 | } | |
769 | else | |
770 | as_fatal (_("Unknown PC relative instruction")); | |
771 | *add_number -= 4; | |
772 | return 0; | |
773 | } | |
774 | ||
775 | #endif /* NO_PCREL_RELOCS */ | |
776 | ||
777 | short | |
31302357 | 778 | tc_coff_fix2rtype (fixS *fixP) |
252b5132 RH |
779 | { |
780 | if (fixP->fx_tcbit && fixP->fx_size == 4) | |
781 | return R_RELLONG_NEG; | |
782 | #ifdef NO_PCREL_RELOCS | |
783 | know (fixP->fx_pcrel == 0); | |
784 | return (fixP->fx_size == 1 ? R_RELBYTE | |
785 | : fixP->fx_size == 2 ? R_DIR16 | |
786 | : R_DIR32); | |
787 | #else | |
31302357 AS |
788 | return (fixP->fx_pcrel |
789 | ? (fixP->fx_size == 1 ? R_PCRBYTE | |
790 | : fixP->fx_size == 2 ? R_PCRWORD | |
791 | : R_PCRLONG) | |
792 | : (fixP->fx_size == 1 ? R_RELBYTE | |
793 | : fixP->fx_size == 2 ? R_RELWORD | |
794 | : R_RELLONG)); | |
252b5132 RH |
795 | #endif |
796 | } | |
797 | ||
798 | #endif | |
799 | ||
800 | #ifdef OBJ_ELF | |
801 | ||
c801568a AM |
802 | /* Return zero if the reference to SYMBOL from within the same segment may |
803 | be relaxed. */ | |
804 | ||
805 | /* On an ELF system, we can't relax an externally visible symbol, | |
806 | because it may be overridden by a shared library. However, if | |
807 | TARGET_OS is "elf", then we presume that we are assembling for an | |
808 | embedded system, in which case we don't have to worry about shared | |
809 | libraries, and we can relax any external sym. */ | |
810 | ||
811 | #define relaxable_symbol(symbol) \ | |
6358301e | 812 | (!((S_IS_EXTERNAL (symbol) && EXTERN_FORCE_RELOC) \ |
c801568a AM |
813 | || S_IS_WEAK (symbol))) |
814 | ||
252b5132 RH |
815 | /* Compute the relocation code for a fixup of SIZE bytes, using pc |
816 | relative relocation if PCREL is non-zero. PIC says whether a special | |
817 | pic relocation was requested. */ | |
818 | ||
252b5132 | 819 | static bfd_reloc_code_real_type |
31302357 | 820 | get_reloc_code (int size, int pcrel, enum pic_relocation pic) |
252b5132 RH |
821 | { |
822 | switch (pic) | |
823 | { | |
824 | case pic_got_pcrel: | |
825 | switch (size) | |
826 | { | |
827 | case 1: | |
828 | return BFD_RELOC_8_GOT_PCREL; | |
829 | case 2: | |
830 | return BFD_RELOC_16_GOT_PCREL; | |
831 | case 4: | |
832 | return BFD_RELOC_32_GOT_PCREL; | |
833 | } | |
834 | break; | |
835 | ||
836 | case pic_got_off: | |
837 | switch (size) | |
838 | { | |
839 | case 1: | |
840 | return BFD_RELOC_8_GOTOFF; | |
841 | case 2: | |
842 | return BFD_RELOC_16_GOTOFF; | |
843 | case 4: | |
844 | return BFD_RELOC_32_GOTOFF; | |
845 | } | |
846 | break; | |
847 | ||
848 | case pic_plt_pcrel: | |
849 | switch (size) | |
850 | { | |
851 | case 1: | |
852 | return BFD_RELOC_8_PLT_PCREL; | |
853 | case 2: | |
854 | return BFD_RELOC_16_PLT_PCREL; | |
855 | case 4: | |
856 | return BFD_RELOC_32_PLT_PCREL; | |
857 | } | |
858 | break; | |
859 | ||
860 | case pic_plt_off: | |
861 | switch (size) | |
862 | { | |
863 | case 1: | |
864 | return BFD_RELOC_8_PLTOFF; | |
865 | case 2: | |
866 | return BFD_RELOC_16_PLTOFF; | |
867 | case 4: | |
868 | return BFD_RELOC_32_PLTOFF; | |
869 | } | |
870 | break; | |
871 | ||
872 | case pic_none: | |
873 | if (pcrel) | |
874 | { | |
875 | switch (size) | |
876 | { | |
877 | case 1: | |
878 | return BFD_RELOC_8_PCREL; | |
879 | case 2: | |
880 | return BFD_RELOC_16_PCREL; | |
881 | case 4: | |
882 | return BFD_RELOC_32_PCREL; | |
883 | } | |
884 | } | |
885 | else | |
886 | { | |
887 | switch (size) | |
888 | { | |
889 | case 1: | |
890 | return BFD_RELOC_8; | |
891 | case 2: | |
892 | return BFD_RELOC_16; | |
893 | case 4: | |
894 | return BFD_RELOC_32; | |
895 | } | |
896 | } | |
897 | } | |
898 | ||
899 | if (pcrel) | |
900 | { | |
901 | if (pic == pic_none) | |
902 | as_bad (_("Can not do %d byte pc-relative relocation"), size); | |
903 | else | |
904 | as_bad (_("Can not do %d byte pc-relative pic relocation"), size); | |
905 | } | |
906 | else | |
907 | { | |
908 | if (pic == pic_none) | |
909 | as_bad (_("Can not do %d byte relocation"), size); | |
910 | else | |
911 | as_bad (_("Can not do %d byte pic relocation"), size); | |
912 | } | |
913 | ||
914 | return BFD_RELOC_NONE; | |
915 | } | |
916 | ||
917 | /* Here we decide which fixups can be adjusted to make them relative | |
918 | to the beginning of the section instead of the symbol. Basically | |
919 | we need to make sure that the dynamic relocations are done | |
920 | correctly, so in some cases we force the original symbol to be | |
921 | used. */ | |
922 | int | |
31302357 | 923 | tc_m68k_fix_adjustable (fixS *fixP) |
252b5132 | 924 | { |
36759679 | 925 | /* Adjust_reloc_syms doesn't know about the GOT. */ |
252b5132 RH |
926 | switch (fixP->fx_r_type) |
927 | { | |
928 | case BFD_RELOC_8_GOT_PCREL: | |
929 | case BFD_RELOC_16_GOT_PCREL: | |
930 | case BFD_RELOC_32_GOT_PCREL: | |
931 | case BFD_RELOC_8_GOTOFF: | |
932 | case BFD_RELOC_16_GOTOFF: | |
933 | case BFD_RELOC_32_GOTOFF: | |
934 | case BFD_RELOC_8_PLT_PCREL: | |
935 | case BFD_RELOC_16_PLT_PCREL: | |
936 | case BFD_RELOC_32_PLT_PCREL: | |
937 | case BFD_RELOC_8_PLTOFF: | |
938 | case BFD_RELOC_16_PLTOFF: | |
939 | case BFD_RELOC_32_PLTOFF: | |
940 | return 0; | |
941 | ||
942 | case BFD_RELOC_VTABLE_INHERIT: | |
943 | case BFD_RELOC_VTABLE_ENTRY: | |
944 | return 0; | |
945 | ||
946 | default: | |
947 | return 1; | |
948 | } | |
949 | } | |
950 | ||
951 | #else /* !OBJ_ELF */ | |
952 | ||
953 | #define get_reloc_code(SIZE,PCREL,OTHER) NO_RELOC | |
954 | ||
c801568a AM |
955 | #define relaxable_symbol(symbol) 1 |
956 | ||
252b5132 RH |
957 | #endif /* OBJ_ELF */ |
958 | ||
959 | #ifdef BFD_ASSEMBLER | |
960 | ||
961 | arelent * | |
31302357 | 962 | tc_gen_reloc (asection *section ATTRIBUTE_UNUSED, fixS *fixp) |
252b5132 RH |
963 | { |
964 | arelent *reloc; | |
965 | bfd_reloc_code_real_type code; | |
966 | ||
8ec6253e NC |
967 | /* If the tcbit is set, then this was a fixup of a negative value |
968 | that was never resolved. We do not have a reloc to handle this, | |
969 | so just return. We assume that other code will have detected this | |
970 | situation and produced a helpful error message, so we just tell the | |
971 | user that the reloc cannot be produced. */ | |
252b5132 | 972 | if (fixp->fx_tcbit) |
8ec6253e NC |
973 | { |
974 | if (fixp->fx_addsy) | |
b091f402 AM |
975 | as_bad_where (fixp->fx_file, fixp->fx_line, |
976 | _("Unable to produce reloc against symbol '%s'"), | |
977 | S_GET_NAME (fixp->fx_addsy)); | |
8ec6253e NC |
978 | return NULL; |
979 | } | |
252b5132 RH |
980 | |
981 | if (fixp->fx_r_type != BFD_RELOC_NONE) | |
982 | { | |
983 | code = fixp->fx_r_type; | |
984 | ||
985 | /* Since DIFF_EXPR_OK is defined in tc-m68k.h, it is possible | |
986 | that fixup_segment converted a non-PC relative reloc into a | |
987 | PC relative reloc. In such a case, we need to convert the | |
988 | reloc code. */ | |
989 | if (fixp->fx_pcrel) | |
990 | { | |
991 | switch (code) | |
992 | { | |
993 | case BFD_RELOC_8: | |
994 | code = BFD_RELOC_8_PCREL; | |
995 | break; | |
996 | case BFD_RELOC_16: | |
997 | code = BFD_RELOC_16_PCREL; | |
998 | break; | |
999 | case BFD_RELOC_32: | |
1000 | code = BFD_RELOC_32_PCREL; | |
1001 | break; | |
1002 | case BFD_RELOC_8_PCREL: | |
1003 | case BFD_RELOC_16_PCREL: | |
1004 | case BFD_RELOC_32_PCREL: | |
1005 | case BFD_RELOC_8_GOT_PCREL: | |
1006 | case BFD_RELOC_16_GOT_PCREL: | |
1007 | case BFD_RELOC_32_GOT_PCREL: | |
1008 | case BFD_RELOC_8_GOTOFF: | |
1009 | case BFD_RELOC_16_GOTOFF: | |
1010 | case BFD_RELOC_32_GOTOFF: | |
1011 | case BFD_RELOC_8_PLT_PCREL: | |
1012 | case BFD_RELOC_16_PLT_PCREL: | |
1013 | case BFD_RELOC_32_PLT_PCREL: | |
1014 | case BFD_RELOC_8_PLTOFF: | |
1015 | case BFD_RELOC_16_PLTOFF: | |
1016 | case BFD_RELOC_32_PLTOFF: | |
1017 | break; | |
1018 | default: | |
1019 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
1020 | _("Cannot make %s relocation PC relative"), | |
1021 | bfd_get_reloc_code_name (code)); | |
1022 | } | |
1023 | } | |
1024 | } | |
1025 | else | |
1026 | { | |
1027 | #define F(SZ,PCREL) (((SZ) << 1) + (PCREL)) | |
1028 | switch (F (fixp->fx_size, fixp->fx_pcrel)) | |
1029 | { | |
1030 | #define MAP(SZ,PCREL,TYPE) case F(SZ,PCREL): code = (TYPE); break | |
1031 | MAP (1, 0, BFD_RELOC_8); | |
1032 | MAP (2, 0, BFD_RELOC_16); | |
1033 | MAP (4, 0, BFD_RELOC_32); | |
1034 | MAP (1, 1, BFD_RELOC_8_PCREL); | |
1035 | MAP (2, 1, BFD_RELOC_16_PCREL); | |
1036 | MAP (4, 1, BFD_RELOC_32_PCREL); | |
1037 | default: | |
1038 | abort (); | |
1039 | } | |
1040 | } | |
1041 | #undef F | |
1042 | #undef MAP | |
1043 | ||
1044 | reloc = (arelent *) xmalloc (sizeof (arelent)); | |
49309057 ILT |
1045 | reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); |
1046 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); | |
252b5132 RH |
1047 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; |
1048 | #ifndef OBJ_ELF | |
1049 | if (fixp->fx_pcrel) | |
1050 | reloc->addend = fixp->fx_addnumber; | |
1051 | else | |
1052 | reloc->addend = 0; | |
1053 | #else | |
1054 | if (!fixp->fx_pcrel) | |
1055 | reloc->addend = fixp->fx_addnumber; | |
1056 | else | |
1057 | reloc->addend = (section->vma | |
8390138c AS |
1058 | /* Explicit sign extension in case char is |
1059 | unsigned. */ | |
1060 | + ((fixp->fx_pcrel_adjust & 0xff) ^ 0x80) - 0x80 | |
252b5132 RH |
1061 | + fixp->fx_addnumber |
1062 | + md_pcrel_from (fixp)); | |
1063 | #endif | |
1064 | ||
1065 | reloc->howto = bfd_reloc_type_lookup (stdoutput, code); | |
1066 | assert (reloc->howto != 0); | |
1067 | ||
1068 | return reloc; | |
1069 | } | |
1070 | ||
1071 | #endif /* BFD_ASSEMBLER */ | |
1072 | ||
252b5132 RH |
1073 | /* Handle of the OPCODE hash table. NULL means any use before |
1074 | m68k_ip_begin() will crash. */ | |
1075 | static struct hash_control *op_hash; | |
1076 | \f | |
1077 | /* Assemble an m68k instruction. */ | |
1078 | ||
1079 | static void | |
31302357 | 1080 | m68k_ip (char *instring) |
252b5132 RH |
1081 | { |
1082 | register char *p; | |
1083 | register struct m68k_op *opP; | |
1084 | register const struct m68k_incant *opcode; | |
1085 | register const char *s; | |
1086 | register int tmpreg = 0, baseo = 0, outro = 0, nextword; | |
1087 | char *pdot, *pdotmove; | |
1088 | enum m68k_size siz1, siz2; | |
1089 | char c; | |
1090 | int losing; | |
1091 | int opsfound; | |
1092 | LITTLENUM_TYPE words[6]; | |
1093 | LITTLENUM_TYPE *wordp; | |
1094 | unsigned long ok_arch = 0; | |
1095 | ||
1096 | if (*instring == ' ') | |
36759679 | 1097 | instring++; /* Skip leading whitespace. */ |
252b5132 RH |
1098 | |
1099 | /* Scan up to end of operation-code, which MUST end in end-of-string | |
92774660 | 1100 | or exactly 1 space. */ |
252b5132 RH |
1101 | pdot = 0; |
1102 | for (p = instring; *p != '\0'; p++) | |
1103 | { | |
1104 | if (*p == ' ') | |
1105 | break; | |
1106 | if (*p == '.') | |
1107 | pdot = p; | |
1108 | } | |
1109 | ||
1110 | if (p == instring) | |
1111 | { | |
1112 | the_ins.error = _("No operator"); | |
1113 | return; | |
1114 | } | |
1115 | ||
1116 | /* p now points to the end of the opcode name, probably whitespace. | |
1117 | Make sure the name is null terminated by clobbering the | |
1118 | whitespace, look it up in the hash table, then fix it back. | |
1119 | Remove a dot, first, since the opcode tables have none. */ | |
1120 | if (pdot != NULL) | |
1121 | { | |
1122 | for (pdotmove = pdot; pdotmove < p; pdotmove++) | |
1123 | *pdotmove = pdotmove[1]; | |
1124 | p--; | |
1125 | } | |
1126 | ||
1127 | c = *p; | |
1128 | *p = '\0'; | |
1129 | opcode = (const struct m68k_incant *) hash_find (op_hash, instring); | |
1130 | *p = c; | |
1131 | ||
1132 | if (pdot != NULL) | |
1133 | { | |
1134 | for (pdotmove = p; pdotmove > pdot; pdotmove--) | |
1135 | *pdotmove = pdotmove[-1]; | |
1136 | *pdot = '.'; | |
1137 | ++p; | |
1138 | } | |
1139 | ||
1140 | if (opcode == NULL) | |
1141 | { | |
1142 | the_ins.error = _("Unknown operator"); | |
1143 | return; | |
1144 | } | |
1145 | ||
36759679 | 1146 | /* Found a legitimate opcode, start matching operands. */ |
252b5132 RH |
1147 | while (*p == ' ') |
1148 | ++p; | |
1149 | ||
1150 | if (opcode->m_operands == 0) | |
1151 | { | |
1152 | char *old = input_line_pointer; | |
1153 | *old = '\n'; | |
1154 | input_line_pointer = p; | |
36759679 | 1155 | /* Ahh - it's a motorola style psuedo op. */ |
252b5132 RH |
1156 | mote_pseudo_table[opcode->m_opnum].poc_handler |
1157 | (mote_pseudo_table[opcode->m_opnum].poc_val); | |
1158 | input_line_pointer = old; | |
1159 | *old = 0; | |
1160 | ||
1161 | return; | |
1162 | } | |
1163 | ||
1164 | if (flag_mri && opcode->m_opnum == 0) | |
1165 | { | |
1166 | /* In MRI mode, random garbage is allowed after an instruction | |
1167 | which accepts no operands. */ | |
1168 | the_ins.args = opcode->m_operands; | |
1169 | the_ins.numargs = opcode->m_opnum; | |
1170 | the_ins.numo = opcode->m_codenum; | |
1171 | the_ins.opcode[0] = getone (opcode); | |
1172 | the_ins.opcode[1] = gettwo (opcode); | |
1173 | return; | |
1174 | } | |
1175 | ||
1176 | for (opP = &the_ins.operands[0]; *p; opP++) | |
1177 | { | |
1178 | p = crack_operand (p, opP); | |
1179 | ||
1180 | if (opP->error) | |
1181 | { | |
1182 | the_ins.error = opP->error; | |
1183 | return; | |
1184 | } | |
1185 | } | |
1186 | ||
1187 | opsfound = opP - &the_ins.operands[0]; | |
1188 | ||
1189 | /* This ugly hack is to support the floating pt opcodes in their | |
1190 | standard form. Essentially, we fake a first enty of type COP#1 */ | |
1191 | if (opcode->m_operands[0] == 'I') | |
1192 | { | |
1193 | int n; | |
1194 | ||
1195 | for (n = opsfound; n > 0; --n) | |
1196 | the_ins.operands[n] = the_ins.operands[n - 1]; | |
1197 | ||
31302357 | 1198 | memset (&the_ins.operands[0], '\0', sizeof (the_ins.operands[0])); |
252b5132 RH |
1199 | the_ins.operands[0].mode = CONTROL; |
1200 | the_ins.operands[0].reg = m68k_float_copnum; | |
1201 | opsfound++; | |
1202 | } | |
1203 | ||
36759679 | 1204 | /* We've got the operands. Find an opcode that'll accept them. */ |
252b5132 RH |
1205 | for (losing = 0;;) |
1206 | { | |
1207 | /* If we didn't get the right number of ops, or we have no | |
92774660 | 1208 | common model with this pattern then reject this pattern. */ |
252b5132 RH |
1209 | |
1210 | ok_arch |= opcode->m_arch; | |
1211 | if (opsfound != opcode->m_opnum | |
1212 | || ((opcode->m_arch & current_architecture) == 0)) | |
1213 | ++losing; | |
1214 | else | |
1215 | { | |
1216 | for (s = opcode->m_operands, opP = &the_ins.operands[0]; | |
1217 | *s && !losing; | |
1218 | s += 2, opP++) | |
1219 | { | |
1220 | /* Warning: this switch is huge! */ | |
1221 | /* I've tried to organize the cases into this order: | |
1222 | non-alpha first, then alpha by letter. Lower-case | |
1223 | goes directly before uppercase counterpart. */ | |
1224 | /* Code with multiple case ...: gets sorted by the lowest | |
1225 | case ... it belongs to. I hope this makes sense. */ | |
1226 | switch (*s) | |
1227 | { | |
1228 | case '!': | |
1229 | switch (opP->mode) | |
1230 | { | |
1231 | case IMMED: | |
1232 | case DREG: | |
1233 | case AREG: | |
1234 | case FPREG: | |
1235 | case CONTROL: | |
1236 | case AINC: | |
1237 | case ADEC: | |
1238 | case REGLST: | |
1239 | losing++; | |
1240 | break; | |
1241 | default: | |
1242 | break; | |
1243 | } | |
1244 | break; | |
1245 | ||
1246 | case '<': | |
1247 | switch (opP->mode) | |
1248 | { | |
1249 | case DREG: | |
1250 | case AREG: | |
1251 | case FPREG: | |
1252 | case CONTROL: | |
1253 | case IMMED: | |
1254 | case ADEC: | |
1255 | case REGLST: | |
1256 | losing++; | |
1257 | break; | |
1258 | default: | |
1259 | break; | |
1260 | } | |
1261 | break; | |
1262 | ||
1263 | case '>': | |
1264 | switch (opP->mode) | |
1265 | { | |
1266 | case DREG: | |
1267 | case AREG: | |
1268 | case FPREG: | |
1269 | case CONTROL: | |
1270 | case IMMED: | |
1271 | case AINC: | |
1272 | case REGLST: | |
1273 | losing++; | |
1274 | break; | |
1275 | case ABSL: | |
1276 | break; | |
1277 | default: | |
1278 | if (opP->reg == PC | |
1279 | || opP->reg == ZPC) | |
1280 | losing++; | |
1281 | break; | |
1282 | } | |
1283 | break; | |
1284 | ||
1285 | case 'm': | |
1286 | switch (opP->mode) | |
1287 | { | |
1288 | case DREG: | |
1289 | case AREG: | |
1290 | case AINDR: | |
1291 | case AINC: | |
1292 | case ADEC: | |
1293 | break; | |
1294 | default: | |
1295 | losing++; | |
1296 | } | |
8a104df9 | 1297 | break; |
252b5132 RH |
1298 | |
1299 | case 'n': | |
1300 | switch (opP->mode) | |
1301 | { | |
1302 | case DISP: | |
1303 | break; | |
1304 | default: | |
1305 | losing++; | |
1306 | } | |
8a104df9 | 1307 | break; |
252b5132 RH |
1308 | |
1309 | case 'o': | |
1310 | switch (opP->mode) | |
1311 | { | |
1312 | case BASE: | |
1313 | case ABSL: | |
1314 | case IMMED: | |
1315 | break; | |
1316 | default: | |
1317 | losing++; | |
1318 | } | |
8a104df9 | 1319 | break; |
252b5132 RH |
1320 | |
1321 | case 'p': | |
1322 | switch (opP->mode) | |
1323 | { | |
1324 | case DREG: | |
1325 | case AREG: | |
1326 | case AINDR: | |
1327 | case AINC: | |
1328 | case ADEC: | |
1329 | break; | |
1330 | case DISP: | |
1331 | if (opP->reg == PC || opP->reg == ZPC) | |
8a104df9 | 1332 | losing++; |
252b5132 RH |
1333 | break; |
1334 | default: | |
1335 | losing++; | |
1336 | } | |
8a104df9 | 1337 | break; |
252b5132 RH |
1338 | |
1339 | case 'q': | |
1340 | switch (opP->mode) | |
1341 | { | |
1342 | case DREG: | |
1343 | case AINDR: | |
1344 | case AINC: | |
1345 | case ADEC: | |
1346 | break; | |
1347 | case DISP: | |
1348 | if (opP->reg == PC || opP->reg == ZPC) | |
8a104df9 | 1349 | losing++; |
252b5132 RH |
1350 | break; |
1351 | default: | |
1352 | losing++; | |
1353 | break; | |
1354 | } | |
8a104df9 | 1355 | break; |
252b5132 RH |
1356 | |
1357 | case 'v': | |
1358 | switch (opP->mode) | |
1359 | { | |
1360 | case DREG: | |
1361 | case AINDR: | |
1362 | case AINC: | |
1363 | case ADEC: | |
1364 | case ABSL: | |
1365 | break; | |
1366 | case DISP: | |
1367 | if (opP->reg == PC || opP->reg == ZPC) | |
8a104df9 | 1368 | losing++; |
252b5132 RH |
1369 | break; |
1370 | default: | |
1371 | losing++; | |
1372 | break; | |
1373 | } | |
1374 | break; | |
1375 | ||
1376 | case '#': | |
1377 | if (opP->mode != IMMED) | |
1378 | losing++; | |
1379 | else if (s[1] == 'b' | |
1380 | && ! isvar (&opP->disp) | |
1381 | && (opP->disp.exp.X_op != O_constant | |
1382 | || ! isbyte (opP->disp.exp.X_add_number))) | |
1383 | losing++; | |
1384 | else if (s[1] == 'B' | |
1385 | && ! isvar (&opP->disp) | |
1386 | && (opP->disp.exp.X_op != O_constant | |
1387 | || ! issbyte (opP->disp.exp.X_add_number))) | |
1388 | losing++; | |
1389 | else if (s[1] == 'w' | |
1390 | && ! isvar (&opP->disp) | |
1391 | && (opP->disp.exp.X_op != O_constant | |
1392 | || ! isword (opP->disp.exp.X_add_number))) | |
1393 | losing++; | |
1394 | else if (s[1] == 'W' | |
1395 | && ! isvar (&opP->disp) | |
1396 | && (opP->disp.exp.X_op != O_constant | |
1397 | || ! issword (opP->disp.exp.X_add_number))) | |
1398 | losing++; | |
1399 | break; | |
1400 | ||
1401 | case '^': | |
1402 | case 'T': | |
1403 | if (opP->mode != IMMED) | |
1404 | losing++; | |
1405 | break; | |
1406 | ||
1407 | case '$': | |
1408 | if (opP->mode == AREG | |
1409 | || opP->mode == CONTROL | |
1410 | || opP->mode == FPREG | |
1411 | || opP->mode == IMMED | |
1412 | || opP->mode == REGLST | |
1413 | || (opP->mode != ABSL | |
1414 | && (opP->reg == PC | |
1415 | || opP->reg == ZPC))) | |
1416 | losing++; | |
1417 | break; | |
1418 | ||
1419 | case '%': | |
1420 | if (opP->mode == CONTROL | |
1421 | || opP->mode == FPREG | |
1422 | || opP->mode == REGLST | |
1423 | || opP->mode == IMMED | |
1424 | || (opP->mode != ABSL | |
1425 | && (opP->reg == PC | |
1426 | || opP->reg == ZPC))) | |
1427 | losing++; | |
1428 | break; | |
1429 | ||
1430 | case '&': | |
1431 | switch (opP->mode) | |
1432 | { | |
1433 | case DREG: | |
1434 | case AREG: | |
1435 | case FPREG: | |
1436 | case CONTROL: | |
1437 | case IMMED: | |
1438 | case AINC: | |
1439 | case ADEC: | |
1440 | case REGLST: | |
1441 | losing++; | |
1442 | break; | |
1443 | case ABSL: | |
1444 | break; | |
1445 | default: | |
1446 | if (opP->reg == PC | |
1447 | || opP->reg == ZPC) | |
1448 | losing++; | |
1449 | break; | |
1450 | } | |
1451 | break; | |
1452 | ||
1453 | case '*': | |
1454 | if (opP->mode == CONTROL | |
1455 | || opP->mode == FPREG | |
1456 | || opP->mode == REGLST) | |
1457 | losing++; | |
1458 | break; | |
1459 | ||
1460 | case '+': | |
1461 | if (opP->mode != AINC) | |
1462 | losing++; | |
1463 | break; | |
1464 | ||
1465 | case '-': | |
1466 | if (opP->mode != ADEC) | |
1467 | losing++; | |
1468 | break; | |
1469 | ||
1470 | case '/': | |
1471 | switch (opP->mode) | |
1472 | { | |
1473 | case AREG: | |
1474 | case CONTROL: | |
1475 | case FPREG: | |
1476 | case AINC: | |
1477 | case ADEC: | |
1478 | case IMMED: | |
1479 | case REGLST: | |
1480 | losing++; | |
1481 | break; | |
1482 | default: | |
1483 | break; | |
1484 | } | |
1485 | break; | |
1486 | ||
1487 | case ';': | |
1488 | switch (opP->mode) | |
1489 | { | |
1490 | case AREG: | |
1491 | case CONTROL: | |
1492 | case FPREG: | |
1493 | case REGLST: | |
1494 | losing++; | |
1495 | break; | |
1496 | default: | |
1497 | break; | |
1498 | } | |
1499 | break; | |
1500 | ||
1501 | case '?': | |
1502 | switch (opP->mode) | |
1503 | { | |
1504 | case AREG: | |
1505 | case CONTROL: | |
1506 | case FPREG: | |
1507 | case AINC: | |
1508 | case ADEC: | |
1509 | case IMMED: | |
1510 | case REGLST: | |
1511 | losing++; | |
1512 | break; | |
1513 | case ABSL: | |
1514 | break; | |
1515 | default: | |
1516 | if (opP->reg == PC || opP->reg == ZPC) | |
1517 | losing++; | |
1518 | break; | |
1519 | } | |
1520 | break; | |
1521 | ||
1522 | case '@': | |
1523 | switch (opP->mode) | |
1524 | { | |
1525 | case AREG: | |
1526 | case CONTROL: | |
1527 | case FPREG: | |
1528 | case IMMED: | |
1529 | case REGLST: | |
1530 | losing++; | |
1531 | break; | |
1532 | default: | |
1533 | break; | |
1534 | } | |
1535 | break; | |
1536 | ||
1537 | case '~': /* For now! (JF FOO is this right?) */ | |
1538 | switch (opP->mode) | |
1539 | { | |
1540 | case DREG: | |
1541 | case AREG: | |
1542 | case CONTROL: | |
1543 | case FPREG: | |
1544 | case IMMED: | |
1545 | case REGLST: | |
1546 | losing++; | |
1547 | break; | |
1548 | case ABSL: | |
1549 | break; | |
1550 | default: | |
1551 | if (opP->reg == PC | |
1552 | || opP->reg == ZPC) | |
1553 | losing++; | |
1554 | break; | |
1555 | } | |
1556 | break; | |
1557 | ||
1558 | case '3': | |
1559 | if (opP->mode != CONTROL | |
1560 | || (opP->reg != TT0 && opP->reg != TT1)) | |
1561 | losing++; | |
1562 | break; | |
1563 | ||
1564 | case 'A': | |
1565 | if (opP->mode != AREG) | |
1566 | losing++; | |
1567 | break; | |
1568 | ||
1569 | case 'a': | |
1570 | if (opP->mode != AINDR) | |
1571 | ++losing; | |
1572 | break; | |
1573 | ||
fd99574b NC |
1574 | case '4': |
1575 | if (opP->mode != AINDR && opP->mode != AINC && opP->mode != ADEC | |
1576 | && (opP->mode != DISP | |
1577 | || opP->reg < ADDR0 | |
1578 | || opP->reg > ADDR7)) | |
1579 | ++losing; | |
1580 | break; | |
1581 | ||
252b5132 RH |
1582 | case 'B': /* FOO */ |
1583 | if (opP->mode != ABSL | |
1584 | || (flag_long_jumps | |
1585 | && strncmp (instring, "jbsr", 4) == 0)) | |
1586 | losing++; | |
1587 | break; | |
1588 | ||
3e602632 NC |
1589 | case 'b': |
1590 | switch (opP->mode) | |
1591 | { | |
1592 | case IMMED: | |
1593 | case ABSL: | |
1594 | case AREG: | |
1595 | case FPREG: | |
1596 | case CONTROL: | |
1597 | case POST: | |
1598 | case PRE: | |
1599 | case REGLST: | |
1600 | losing++; | |
1601 | break; | |
1602 | default: | |
1603 | break; | |
1604 | } | |
1605 | break; | |
1606 | ||
252b5132 RH |
1607 | case 'C': |
1608 | if (opP->mode != CONTROL || opP->reg != CCR) | |
1609 | losing++; | |
1610 | break; | |
1611 | ||
1612 | case 'd': | |
1613 | if (opP->mode != DISP | |
1614 | || opP->reg < ADDR0 | |
1615 | || opP->reg > ADDR7) | |
1616 | losing++; | |
1617 | break; | |
1618 | ||
1619 | case 'D': | |
1620 | if (opP->mode != DREG) | |
1621 | losing++; | |
1622 | break; | |
1623 | ||
6da466c7 ILT |
1624 | case 'E': |
1625 | if (opP->reg != ACC) | |
1626 | losing++; | |
1627 | break; | |
1628 | ||
fd99574b NC |
1629 | case 'e': |
1630 | if (opP->reg != ACC && opP->reg != ACC1 | |
1631 | && opP->reg != ACC2 && opP->reg != ACC3) | |
1632 | losing++; | |
1633 | break; | |
1634 | ||
252b5132 RH |
1635 | case 'F': |
1636 | if (opP->mode != FPREG) | |
1637 | losing++; | |
1638 | break; | |
1639 | ||
6da466c7 ILT |
1640 | case 'G': |
1641 | if (opP->reg != MACSR) | |
1642 | losing++; | |
1643 | break; | |
1644 | ||
fd99574b NC |
1645 | case 'g': |
1646 | if (opP->reg != ACCEXT01 && opP->reg != ACCEXT23) | |
1647 | losing++; | |
1648 | break; | |
1649 | ||
6da466c7 ILT |
1650 | case 'H': |
1651 | if (opP->reg != MASK) | |
1652 | losing++; | |
1653 | break; | |
1654 | ||
252b5132 RH |
1655 | case 'I': |
1656 | if (opP->mode != CONTROL | |
1657 | || opP->reg < COP0 | |
1658 | || opP->reg > COP7) | |
1659 | losing++; | |
1660 | break; | |
1661 | ||
fd99574b NC |
1662 | case 'i': |
1663 | if (opP->mode != LSH && opP->mode != RSH) | |
1664 | losing++; | |
1665 | break; | |
1666 | ||
252b5132 RH |
1667 | case 'J': |
1668 | if (opP->mode != CONTROL | |
1669 | || opP->reg < USP | |
1670 | || opP->reg > last_movec_reg) | |
1671 | losing++; | |
1672 | else | |
1673 | { | |
1674 | const enum m68k_register *rp; | |
1675 | for (rp = control_regs; *rp; rp++) | |
1676 | if (*rp == opP->reg) | |
1677 | break; | |
1678 | if (*rp == 0) | |
1679 | losing++; | |
1680 | } | |
1681 | break; | |
1682 | ||
1683 | case 'k': | |
1684 | if (opP->mode != IMMED) | |
1685 | losing++; | |
1686 | break; | |
1687 | ||
1688 | case 'l': | |
1689 | case 'L': | |
1690 | if (opP->mode == DREG | |
1691 | || opP->mode == AREG | |
1692 | || opP->mode == FPREG) | |
1693 | { | |
1694 | if (s[1] == '8') | |
1695 | losing++; | |
1696 | else | |
1697 | { | |
1698 | switch (opP->mode) | |
1699 | { | |
1700 | case DREG: | |
1701 | opP->mask = 1 << (opP->reg - DATA0); | |
1702 | break; | |
1703 | case AREG: | |
1704 | opP->mask = 1 << (opP->reg - ADDR0 + 8); | |
1705 | break; | |
1706 | case FPREG: | |
1707 | opP->mask = 1 << (opP->reg - FP0 + 16); | |
1708 | break; | |
1709 | default: | |
1710 | abort (); | |
1711 | } | |
1712 | opP->mode = REGLST; | |
1713 | } | |
1714 | } | |
1715 | else if (opP->mode == CONTROL) | |
1716 | { | |
1717 | if (s[1] != '8') | |
1718 | losing++; | |
1719 | else | |
1720 | { | |
1721 | switch (opP->reg) | |
1722 | { | |
1723 | case FPI: | |
1724 | opP->mask = 1 << 24; | |
1725 | break; | |
1726 | case FPS: | |
1727 | opP->mask = 1 << 25; | |
1728 | break; | |
1729 | case FPC: | |
1730 | opP->mask = 1 << 26; | |
1731 | break; | |
1732 | default: | |
1733 | losing++; | |
1734 | break; | |
1735 | } | |
1736 | opP->mode = REGLST; | |
1737 | } | |
1738 | } | |
1739 | else if (opP->mode != REGLST) | |
1740 | losing++; | |
1741 | else if (s[1] == '8' && (opP->mask & 0x0ffffff) != 0) | |
1742 | losing++; | |
1743 | else if (s[1] == '3' && (opP->mask & 0x7000000) != 0) | |
1744 | losing++; | |
1745 | break; | |
1746 | ||
1747 | case 'M': | |
1748 | if (opP->mode != IMMED) | |
1749 | losing++; | |
1750 | else if (opP->disp.exp.X_op != O_constant | |
1751 | || ! issbyte (opP->disp.exp.X_add_number)) | |
1752 | losing++; | |
1753 | else if (! m68k_quick | |
1754 | && instring[3] != 'q' | |
1755 | && instring[4] != 'q') | |
1756 | losing++; | |
1757 | break; | |
1758 | ||
1759 | case 'O': | |
1760 | if (opP->mode != DREG | |
1761 | && opP->mode != IMMED | |
1762 | && opP->mode != ABSL) | |
1763 | losing++; | |
1764 | break; | |
1765 | ||
1766 | case 'Q': | |
1767 | if (opP->mode != IMMED) | |
1768 | losing++; | |
1769 | else if (opP->disp.exp.X_op != O_constant | |
bd17c2c3 | 1770 | || TRUNC (opP->disp.exp.X_add_number) - 1 > 7) |
252b5132 RH |
1771 | losing++; |
1772 | else if (! m68k_quick | |
1773 | && (strncmp (instring, "add", 3) == 0 | |
1774 | || strncmp (instring, "sub", 3) == 0) | |
1775 | && instring[3] != 'q') | |
1776 | losing++; | |
1777 | break; | |
1778 | ||
1779 | case 'R': | |
1780 | if (opP->mode != DREG && opP->mode != AREG) | |
1781 | losing++; | |
1782 | break; | |
1783 | ||
1784 | case 'r': | |
1785 | if (opP->mode != AINDR | |
1786 | && (opP->mode != BASE | |
1787 | || (opP->reg != 0 | |
1788 | && opP->reg != ZADDR0) | |
1789 | || opP->disp.exp.X_op != O_absent | |
1790 | || ((opP->index.reg < DATA0 | |
1791 | || opP->index.reg > DATA7) | |
1792 | && (opP->index.reg < ADDR0 | |
1793 | || opP->index.reg > ADDR7)) | |
1794 | || opP->index.size != SIZE_UNSPEC | |
1795 | || opP->index.scale != 1)) | |
1796 | losing++; | |
1797 | break; | |
1798 | ||
1799 | case 's': | |
1800 | if (opP->mode != CONTROL | |
1801 | || ! (opP->reg == FPI | |
1802 | || opP->reg == FPS | |
1803 | || opP->reg == FPC)) | |
1804 | losing++; | |
1805 | break; | |
1806 | ||
1807 | case 'S': | |
1808 | if (opP->mode != CONTROL || opP->reg != SR) | |
1809 | losing++; | |
1810 | break; | |
1811 | ||
1812 | case 't': | |
1813 | if (opP->mode != IMMED) | |
1814 | losing++; | |
1815 | else if (opP->disp.exp.X_op != O_constant | |
bd17c2c3 | 1816 | || TRUNC (opP->disp.exp.X_add_number) > 7) |
252b5132 RH |
1817 | losing++; |
1818 | break; | |
1819 | ||
1820 | case 'U': | |
1821 | if (opP->mode != CONTROL || opP->reg != USP) | |
1822 | losing++; | |
1823 | break; | |
1824 | ||
3e602632 NC |
1825 | case 'x': |
1826 | if (opP->mode != IMMED) | |
1827 | losing++; | |
1828 | else if (opP->disp.exp.X_op != O_constant | |
bd17c2c3 AM |
1829 | || (TRUNC (opP->disp.exp.X_add_number) != 0xffffffff |
1830 | && TRUNC (opP->disp.exp.X_add_number) - 1 > 6)) | |
3e602632 NC |
1831 | losing++; |
1832 | break; | |
1833 | ||
252b5132 RH |
1834 | /* JF these are out of order. We could put them |
1835 | in order if we were willing to put up with | |
1836 | bunches of #ifdef m68851s in the code. | |
1837 | ||
1838 | Don't forget that you need these operands | |
1839 | to use 68030 MMU instructions. */ | |
1840 | #ifndef NO_68851 | |
36759679 | 1841 | /* Memory addressing mode used by pflushr. */ |
252b5132 RH |
1842 | case '|': |
1843 | if (opP->mode == CONTROL | |
1844 | || opP->mode == FPREG | |
1845 | || opP->mode == DREG | |
1846 | || opP->mode == AREG | |
1847 | || opP->mode == REGLST) | |
1848 | losing++; | |
1849 | /* We should accept immediate operands, but they | |
1850 | supposedly have to be quad word, and we don't | |
1851 | handle that. I would like to see what a Motorola | |
1852 | assembler does before doing something here. */ | |
1853 | if (opP->mode == IMMED) | |
1854 | losing++; | |
1855 | break; | |
1856 | ||
1857 | case 'f': | |
1858 | if (opP->mode != CONTROL | |
1859 | || (opP->reg != SFC && opP->reg != DFC)) | |
1860 | losing++; | |
1861 | break; | |
1862 | ||
1863 | case '0': | |
1864 | if (opP->mode != CONTROL || opP->reg != TC) | |
1865 | losing++; | |
1866 | break; | |
1867 | ||
1868 | case '1': | |
1869 | if (opP->mode != CONTROL || opP->reg != AC) | |
1870 | losing++; | |
1871 | break; | |
1872 | ||
1873 | case '2': | |
1874 | if (opP->mode != CONTROL | |
1875 | || (opP->reg != CAL | |
1876 | && opP->reg != VAL | |
1877 | && opP->reg != SCC)) | |
1878 | losing++; | |
1879 | break; | |
1880 | ||
1881 | case 'V': | |
1882 | if (opP->mode != CONTROL | |
1883 | || opP->reg != VAL) | |
1884 | losing++; | |
1885 | break; | |
1886 | ||
1887 | case 'W': | |
1888 | if (opP->mode != CONTROL | |
1889 | || (opP->reg != DRP | |
1890 | && opP->reg != SRP | |
1891 | && opP->reg != CRP)) | |
1892 | losing++; | |
1893 | break; | |
1894 | ||
3e602632 NC |
1895 | case 'w': |
1896 | switch (opP->mode) | |
1897 | { | |
1898 | case IMMED: | |
1899 | case ABSL: | |
1900 | case AREG: | |
1901 | case DREG: | |
1902 | case FPREG: | |
1903 | case CONTROL: | |
1904 | case POST: | |
1905 | case PRE: | |
1906 | case REGLST: | |
1907 | losing++; | |
1908 | break; | |
1909 | default: | |
1910 | break; | |
1911 | } | |
1912 | break; | |
1913 | ||
252b5132 RH |
1914 | case 'X': |
1915 | if (opP->mode != CONTROL | |
1916 | || (!(opP->reg >= BAD && opP->reg <= BAD + 7) | |
1917 | && !(opP->reg >= BAC && opP->reg <= BAC + 7))) | |
1918 | losing++; | |
1919 | break; | |
1920 | ||
1921 | case 'Y': | |
1922 | if (opP->mode != CONTROL || opP->reg != PSR) | |
1923 | losing++; | |
1924 | break; | |
1925 | ||
1926 | case 'Z': | |
1927 | if (opP->mode != CONTROL || opP->reg != PCSR) | |
1928 | losing++; | |
1929 | break; | |
1930 | #endif | |
1931 | case 'c': | |
1932 | if (opP->mode != CONTROL | |
1933 | || (opP->reg != NC | |
1934 | && opP->reg != IC | |
1935 | && opP->reg != DC | |
1936 | && opP->reg != BC)) | |
36759679 | 1937 | losing++; |
252b5132 RH |
1938 | break; |
1939 | ||
1940 | case '_': | |
1941 | if (opP->mode != ABSL) | |
1942 | ++losing; | |
1943 | break; | |
1944 | ||
6da466c7 ILT |
1945 | case 'u': |
1946 | if (opP->reg < DATA0L || opP->reg > ADDR7U) | |
1947 | losing++; | |
1948 | /* FIXME: kludge instead of fixing parser: | |
1949 | upper/lower registers are *not* CONTROL | |
92774660 | 1950 | registers, but ordinary ones. */ |
6da466c7 ILT |
1951 | if ((opP->reg >= DATA0L && opP->reg <= DATA7L) |
1952 | || (opP->reg >= DATA0U && opP->reg <= DATA7U)) | |
1953 | opP->mode = DREG; | |
1954 | else | |
1955 | opP->mode = AREG; | |
1956 | break; | |
1957 | ||
3e602632 NC |
1958 | case 'y': |
1959 | if (!(opP->mode == AINDR | |
31302357 AS |
1960 | || (opP->mode == DISP |
1961 | && !(opP->reg == PC || opP->reg == ZPC)))) | |
3e602632 NC |
1962 | losing++; |
1963 | break; | |
1964 | ||
1965 | case 'z': | |
1966 | if (!(opP->mode == AINDR || opP->mode == DISP)) | |
1967 | losing++; | |
1968 | break; | |
1969 | ||
252b5132 RH |
1970 | default: |
1971 | abort (); | |
36759679 | 1972 | } |
252b5132 RH |
1973 | |
1974 | if (losing) | |
1975 | break; | |
36759679 NC |
1976 | } |
1977 | } | |
252b5132 RH |
1978 | |
1979 | if (!losing) | |
36759679 | 1980 | break; |
252b5132 RH |
1981 | |
1982 | opcode = opcode->m_next; | |
1983 | ||
1984 | if (!opcode) | |
1985 | { | |
1986 | if (ok_arch | |
1987 | && !(ok_arch & current_architecture)) | |
1988 | { | |
1989 | char buf[200], *cp; | |
1990 | ||
6b6e92f4 | 1991 | strncpy (buf, |
31302357 AS |
1992 | _("invalid instruction for this architecture; needs "), |
1993 | sizeof (buf)); | |
252b5132 RH |
1994 | cp = buf + strlen (buf); |
1995 | switch (ok_arch) | |
1996 | { | |
6b6e92f4 | 1997 | case mcfisa_a: |
31302357 AS |
1998 | strncpy (cp, _("ColdFire ISA_A"), |
1999 | sizeof (buf) - (cp - buf)); | |
6b6e92f4 | 2000 | cp += strlen (cp); |
31302357 AS |
2001 | strncpy (cp, find_cf_chip (ok_arch), |
2002 | sizeof (buf) - (cp - buf)); | |
6b6e92f4 NC |
2003 | cp += strlen (cp); |
2004 | break; | |
2005 | case mcfhwdiv: | |
31302357 AS |
2006 | strncpy (cp, _("ColdFire hardware divide"), |
2007 | sizeof (buf) - (cp - buf)); | |
6b6e92f4 | 2008 | cp += strlen (cp); |
31302357 AS |
2009 | strncpy (cp, find_cf_chip (ok_arch), |
2010 | sizeof (buf) - (cp - buf)); | |
6b6e92f4 NC |
2011 | cp += strlen (cp); |
2012 | break; | |
2013 | case mcfisa_aa: | |
31302357 AS |
2014 | strncpy (cp, _("ColdFire ISA_A+"), |
2015 | sizeof (buf) - (cp - buf)); | |
6b6e92f4 | 2016 | cp += strlen (cp); |
31302357 AS |
2017 | strncpy (cp, find_cf_chip (ok_arch), |
2018 | sizeof (buf) - (cp - buf)); | |
6b6e92f4 NC |
2019 | cp += strlen (cp); |
2020 | break; | |
2021 | case mcfisa_b: | |
31302357 AS |
2022 | strncpy (cp, _("ColdFire ISA_B"), |
2023 | sizeof (buf) - (cp - buf)); | |
6b6e92f4 | 2024 | cp += strlen (cp); |
31302357 AS |
2025 | strncpy (cp, find_cf_chip (ok_arch), |
2026 | sizeof (buf) - (cp - buf)); | |
6b6e92f4 NC |
2027 | cp += strlen (cp); |
2028 | break; | |
3e602632 | 2029 | case cfloat: |
31302357 | 2030 | strncpy (cp, _("ColdFire fpu"), sizeof (buf) - (cp - buf)); |
6b6e92f4 | 2031 | cp += strlen (cp); |
31302357 AS |
2032 | strncpy (cp, find_cf_chip (ok_arch), |
2033 | sizeof (buf) - (cp - buf)); | |
6b6e92f4 | 2034 | cp += strlen (cp); |
3e602632 | 2035 | break; |
252b5132 RH |
2036 | case mfloat: |
2037 | strcpy (cp, _("fpu (68040, 68060 or 68881/68882)")); | |
2038 | break; | |
2039 | case mmmu: | |
2040 | strcpy (cp, _("mmu (68030 or 68851)")); | |
2041 | break; | |
2042 | case m68020up: | |
2043 | strcpy (cp, _("68020 or higher")); | |
2044 | break; | |
2045 | case m68000up: | |
2046 | strcpy (cp, _("68000 or higher")); | |
2047 | break; | |
2048 | case m68010up: | |
2049 | strcpy (cp, _("68010 or higher")); | |
2050 | break; | |
2051 | default: | |
2052 | { | |
2053 | int got_one = 0, idx; | |
6b6e92f4 NC |
2054 | |
2055 | for (idx = 0; idx < n_archs; idx++) | |
252b5132 RH |
2056 | { |
2057 | if ((archs[idx].arch & ok_arch) | |
2058 | && ! archs[idx].alias) | |
2059 | { | |
2060 | if (got_one) | |
2061 | { | |
2062 | strcpy (cp, " or "); | |
2063 | cp += strlen (cp); | |
2064 | } | |
2065 | got_one = 1; | |
2066 | strcpy (cp, archs[idx].name); | |
2067 | cp += strlen (cp); | |
2068 | } | |
2069 | } | |
2070 | } | |
2071 | } | |
2072 | cp = xmalloc (strlen (buf) + 1); | |
2073 | strcpy (cp, buf); | |
2074 | the_ins.error = cp; | |
2075 | } | |
2076 | else | |
2077 | the_ins.error = _("operands mismatch"); | |
2078 | return; | |
36759679 | 2079 | } |
252b5132 RH |
2080 | |
2081 | losing = 0; | |
2082 | } | |
2083 | ||
36759679 | 2084 | /* Now assemble it. */ |
252b5132 RH |
2085 | the_ins.args = opcode->m_operands; |
2086 | the_ins.numargs = opcode->m_opnum; | |
2087 | the_ins.numo = opcode->m_codenum; | |
2088 | the_ins.opcode[0] = getone (opcode); | |
2089 | the_ins.opcode[1] = gettwo (opcode); | |
2090 | ||
2091 | for (s = the_ins.args, opP = &the_ins.operands[0]; *s; s += 2, opP++) | |
2092 | { | |
2093 | /* This switch is a doozy. | |
31302357 | 2094 | Watch the first step; its a big one! */ |
252b5132 RH |
2095 | switch (s[0]) |
2096 | { | |
2097 | ||
2098 | case '*': | |
2099 | case '~': | |
2100 | case '%': | |
2101 | case ';': | |
2102 | case '@': | |
2103 | case '!': | |
2104 | case '&': | |
2105 | case '$': | |
2106 | case '?': | |
2107 | case '/': | |
2108 | case '<': | |
2109 | case '>': | |
3e602632 | 2110 | case 'b': |
252b5132 RH |
2111 | case 'm': |
2112 | case 'n': | |
2113 | case 'o': | |
2114 | case 'p': | |
2115 | case 'q': | |
2116 | case 'v': | |
3e602632 NC |
2117 | case 'w': |
2118 | case 'y': | |
2119 | case 'z': | |
fd99574b | 2120 | case '4': |
252b5132 RH |
2121 | #ifndef NO_68851 |
2122 | case '|': | |
2123 | #endif | |
2124 | switch (opP->mode) | |
2125 | { | |
2126 | case IMMED: | |
2127 | tmpreg = 0x3c; /* 7.4 */ | |
2128 | if (strchr ("bwl", s[1])) | |
3e602632 | 2129 | nextword = get_num (&opP->disp, 90); |
252b5132 RH |
2130 | else |
2131 | nextword = get_num (&opP->disp, 0); | |
2132 | if (isvar (&opP->disp)) | |
2133 | add_fix (s[1], &opP->disp, 0, 0); | |
2134 | switch (s[1]) | |
2135 | { | |
2136 | case 'b': | |
2137 | if (!isbyte (nextword)) | |
2138 | opP->error = _("operand out of range"); | |
2139 | addword (nextword); | |
2140 | baseo = 0; | |
2141 | break; | |
2142 | case 'w': | |
2143 | if (!isword (nextword)) | |
2144 | opP->error = _("operand out of range"); | |
2145 | addword (nextword); | |
2146 | baseo = 0; | |
2147 | break; | |
2148 | case 'W': | |
2149 | if (!issword (nextword)) | |
2150 | opP->error = _("operand out of range"); | |
2151 | addword (nextword); | |
2152 | baseo = 0; | |
2153 | break; | |
2154 | case 'l': | |
2155 | addword (nextword >> 16); | |
2156 | addword (nextword); | |
2157 | baseo = 0; | |
2158 | break; | |
2159 | ||
2160 | case 'f': | |
2161 | baseo = 2; | |
2162 | outro = 8; | |
2163 | break; | |
2164 | case 'F': | |
2165 | baseo = 4; | |
2166 | outro = 11; | |
2167 | break; | |
2168 | case 'x': | |
2169 | baseo = 6; | |
2170 | outro = 15; | |
2171 | break; | |
2172 | case 'p': | |
2173 | baseo = 6; | |
2174 | outro = -1; | |
2175 | break; | |
2176 | default: | |
2177 | abort (); | |
2178 | } | |
2179 | if (!baseo) | |
2180 | break; | |
2181 | ||
36759679 | 2182 | /* We gotta put out some float. */ |
252b5132 RH |
2183 | if (op (&opP->disp) != O_big) |
2184 | { | |
2185 | valueT val; | |
2186 | int gencnt; | |
2187 | ||
2188 | /* Can other cases happen here? */ | |
2189 | if (op (&opP->disp) != O_constant) | |
2190 | abort (); | |
2191 | ||
2192 | val = (valueT) offs (&opP->disp); | |
2193 | gencnt = 0; | |
2194 | do | |
2195 | { | |
2196 | generic_bignum[gencnt] = (LITTLENUM_TYPE) val; | |
2197 | val >>= LITTLENUM_NUMBER_OF_BITS; | |
2198 | ++gencnt; | |
2199 | } | |
2200 | while (val != 0); | |
2201 | offs (&opP->disp) = gencnt; | |
2202 | } | |
2203 | if (offs (&opP->disp) > 0) | |
2204 | { | |
2205 | if (offs (&opP->disp) > baseo) | |
2206 | { | |
2207 | as_warn (_("Bignum too big for %c format; truncated"), | |
2208 | s[1]); | |
2209 | offs (&opP->disp) = baseo; | |
2210 | } | |
2211 | baseo -= offs (&opP->disp); | |
2212 | while (baseo--) | |
2213 | addword (0); | |
2214 | for (wordp = generic_bignum + offs (&opP->disp) - 1; | |
2215 | offs (&opP->disp)--; | |
2216 | --wordp) | |
2217 | addword (*wordp); | |
2218 | break; | |
2219 | } | |
2220 | gen_to_words (words, baseo, (long) outro); | |
2221 | for (wordp = words; baseo--; wordp++) | |
2222 | addword (*wordp); | |
2223 | break; | |
2224 | case DREG: | |
2225 | tmpreg = opP->reg - DATA; /* 0.dreg */ | |
2226 | break; | |
2227 | case AREG: | |
2228 | tmpreg = 0x08 + opP->reg - ADDR; /* 1.areg */ | |
2229 | break; | |
2230 | case AINDR: | |
2231 | tmpreg = 0x10 + opP->reg - ADDR; /* 2.areg */ | |
2232 | break; | |
2233 | case ADEC: | |
2234 | tmpreg = 0x20 + opP->reg - ADDR; /* 4.areg */ | |
2235 | break; | |
2236 | case AINC: | |
2237 | tmpreg = 0x18 + opP->reg - ADDR; /* 3.areg */ | |
2238 | break; | |
2239 | case DISP: | |
2240 | ||
3e602632 | 2241 | nextword = get_num (&opP->disp, 90); |
252b5132 | 2242 | |
580b9172 NC |
2243 | /* Convert mode 5 addressing with a zero offset into |
2244 | mode 2 addressing to reduce the instruction size by a | |
2245 | word. */ | |
2246 | if (! isvar (&opP->disp) | |
2247 | && (nextword == 0) | |
2248 | && (opP->disp.size == SIZE_UNSPEC) | |
2249 | && (opP->reg >= ADDR0) | |
2250 | && (opP->reg <= ADDR7)) | |
2251 | { | |
2252 | tmpreg = 0x10 + opP->reg - ADDR; /* 2.areg */ | |
2253 | break; | |
2254 | } | |
2255 | ||
252b5132 RH |
2256 | if (opP->reg == PC |
2257 | && ! isvar (&opP->disp) | |
2258 | && m68k_abspcadd) | |
2259 | { | |
2260 | opP->disp.exp.X_op = O_symbol; | |
2261 | #ifndef BFD_ASSEMBLER | |
2262 | opP->disp.exp.X_add_symbol = &abs_symbol; | |
2263 | #else | |
2264 | opP->disp.exp.X_add_symbol = | |
2265 | section_symbol (absolute_section); | |
2266 | #endif | |
2267 | } | |
2268 | ||
36759679 | 2269 | /* Force into index mode. Hope this works. */ |
252b5132 RH |
2270 | |
2271 | /* We do the first bit for 32-bit displacements, and the | |
2272 | second bit for 16 bit ones. It is possible that we | |
2273 | should make the default be WORD instead of LONG, but | |
2274 | I think that'd break GCC, so we put up with a little | |
2275 | inefficiency for the sake of working output. */ | |
2276 | ||
2277 | if (!issword (nextword) | |
2278 | || (isvar (&opP->disp) | |
2279 | && ((opP->disp.size == SIZE_UNSPEC | |
2280 | && flag_short_refs == 0 | |
2281 | && cpu_of_arch (current_architecture) >= m68020 | |
6da466c7 | 2282 | && ! arch_coldfire_p (current_architecture)) |
252b5132 RH |
2283 | || opP->disp.size == SIZE_LONG))) |
2284 | { | |
2285 | if (cpu_of_arch (current_architecture) < m68020 | |
6da466c7 | 2286 | || arch_coldfire_p (current_architecture)) |
252b5132 RH |
2287 | opP->error = |
2288 | _("displacement too large for this architecture; needs 68020 or higher"); | |
2289 | if (opP->reg == PC) | |
2290 | tmpreg = 0x3B; /* 7.3 */ | |
2291 | else | |
2292 | tmpreg = 0x30 + opP->reg - ADDR; /* 6.areg */ | |
2293 | if (isvar (&opP->disp)) | |
2294 | { | |
2295 | if (opP->reg == PC) | |
2296 | { | |
2297 | if (opP->disp.size == SIZE_LONG | |
2298 | #ifdef OBJ_ELF | |
2299 | /* If the displacement needs pic | |
2300 | relocation it cannot be relaxed. */ | |
2301 | || opP->disp.pic_reloc != pic_none | |
2302 | #endif | |
2303 | ) | |
2304 | { | |
2305 | addword (0x0170); | |
2306 | add_fix ('l', &opP->disp, 1, 2); | |
2307 | } | |
2308 | else | |
2309 | { | |
2310 | add_frag (adds (&opP->disp), | |
bd17c2c3 | 2311 | SEXT (offs (&opP->disp)), |
151337e8 | 2312 | TAB (PCREL1632, SZ_UNDEF)); |
252b5132 RH |
2313 | break; |
2314 | } | |
2315 | } | |
2316 | else | |
2317 | { | |
2318 | addword (0x0170); | |
2319 | add_fix ('l', &opP->disp, 0, 0); | |
2320 | } | |
2321 | } | |
2322 | else | |
2323 | addword (0x0170); | |
2324 | addword (nextword >> 16); | |
2325 | } | |
2326 | else | |
2327 | { | |
2328 | if (opP->reg == PC) | |
2329 | tmpreg = 0x3A; /* 7.2 */ | |
2330 | else | |
2331 | tmpreg = 0x28 + opP->reg - ADDR; /* 5.areg */ | |
2332 | ||
2333 | if (isvar (&opP->disp)) | |
2334 | { | |
2335 | if (opP->reg == PC) | |
2336 | { | |
2337 | add_fix ('w', &opP->disp, 1, 0); | |
2338 | } | |
2339 | else | |
2340 | add_fix ('w', &opP->disp, 0, 0); | |
2341 | } | |
2342 | } | |
2343 | addword (nextword); | |
2344 | break; | |
2345 | ||
2346 | case POST: | |
2347 | case PRE: | |
2348 | case BASE: | |
2349 | nextword = 0; | |
3e602632 | 2350 | baseo = get_num (&opP->disp, 90); |
252b5132 | 2351 | if (opP->mode == POST || opP->mode == PRE) |
3e602632 | 2352 | outro = get_num (&opP->odisp, 90); |
252b5132 RH |
2353 | /* Figure out the `addressing mode'. |
2354 | Also turn on the BASE_DISABLE bit, if needed. */ | |
2355 | if (opP->reg == PC || opP->reg == ZPC) | |
2356 | { | |
2357 | tmpreg = 0x3b; /* 7.3 */ | |
2358 | if (opP->reg == ZPC) | |
2359 | nextword |= 0x80; | |
2360 | } | |
2361 | else if (opP->reg == 0) | |
2362 | { | |
2363 | nextword |= 0x80; | |
2364 | tmpreg = 0x30; /* 6.garbage */ | |
2365 | } | |
2366 | else if (opP->reg >= ZADDR0 && opP->reg <= ZADDR7) | |
2367 | { | |
2368 | nextword |= 0x80; | |
2369 | tmpreg = 0x30 + opP->reg - ZADDR0; | |
2370 | } | |
2371 | else | |
2372 | tmpreg = 0x30 + opP->reg - ADDR; /* 6.areg */ | |
2373 | ||
2374 | siz1 = opP->disp.size; | |
2375 | if (opP->mode == POST || opP->mode == PRE) | |
2376 | siz2 = opP->odisp.size; | |
2377 | else | |
2378 | siz2 = SIZE_UNSPEC; | |
2379 | ||
36759679 | 2380 | /* Index register stuff. */ |
252b5132 RH |
2381 | if (opP->index.reg != 0 |
2382 | && opP->index.reg >= DATA | |
2383 | && opP->index.reg <= ADDR7) | |
2384 | { | |
2385 | nextword |= (opP->index.reg - DATA) << 12; | |
2386 | ||
2387 | if (opP->index.size == SIZE_LONG | |
2388 | || (opP->index.size == SIZE_UNSPEC | |
2389 | && m68k_index_width_default == SIZE_LONG)) | |
2390 | nextword |= 0x800; | |
2391 | ||
92774660 | 2392 | if ((opP->index.scale != 1 |
252b5132 | 2393 | && cpu_of_arch (current_architecture) < m68020) |
92774660 | 2394 | || (opP->index.scale == 8 |
3e602632 | 2395 | && (arch_coldfire_p (current_architecture) |
6b6e92f4 | 2396 | && !arch_coldfire_fpu (current_architecture)))) |
252b5132 RH |
2397 | { |
2398 | opP->error = | |
2399 | _("scale factor invalid on this architecture; needs cpu32 or 68020 or higher"); | |
2400 | } | |
2401 | ||
6da466c7 ILT |
2402 | if (arch_coldfire_p (current_architecture) |
2403 | && opP->index.size == SIZE_WORD) | |
2404 | opP->error = _("invalid index size for coldfire"); | |
2405 | ||
252b5132 RH |
2406 | switch (opP->index.scale) |
2407 | { | |
2408 | case 1: | |
2409 | break; | |
2410 | case 2: | |
2411 | nextword |= 0x200; | |
2412 | break; | |
2413 | case 4: | |
2414 | nextword |= 0x400; | |
2415 | break; | |
2416 | case 8: | |
2417 | nextword |= 0x600; | |
2418 | break; | |
2419 | default: | |
2420 | abort (); | |
2421 | } | |
2422 | /* IF its simple, | |
2423 | GET US OUT OF HERE! */ | |
2424 | ||
2425 | /* Must be INDEX, with an index register. Address | |
2426 | register cannot be ZERO-PC, and either :b was | |
2427 | forced, or we know it will fit. For a 68000 or | |
2428 | 68010, force this mode anyways, because the | |
2429 | larger modes aren't supported. */ | |
2430 | if (opP->mode == BASE | |
2431 | && ((opP->reg >= ADDR0 | |
2432 | && opP->reg <= ADDR7) | |
2433 | || opP->reg == PC)) | |
2434 | { | |
2435 | if (siz1 == SIZE_BYTE | |
2436 | || cpu_of_arch (current_architecture) < m68020 | |
6da466c7 | 2437 | || arch_coldfire_p (current_architecture) |
252b5132 RH |
2438 | || (siz1 == SIZE_UNSPEC |
2439 | && ! isvar (&opP->disp) | |
2440 | && issbyte (baseo))) | |
2441 | { | |
2442 | nextword += baseo & 0xff; | |
2443 | addword (nextword); | |
2444 | if (isvar (&opP->disp)) | |
2445 | { | |
2446 | /* Do a byte relocation. If it doesn't | |
2447 | fit (possible on m68000) let the | |
2448 | fixup processing complain later. */ | |
2449 | if (opP->reg == PC) | |
2450 | add_fix ('B', &opP->disp, 1, 1); | |
2451 | else | |
2452 | add_fix ('B', &opP->disp, 0, 0); | |
2453 | } | |
2454 | else if (siz1 != SIZE_BYTE) | |
2455 | { | |
2456 | if (siz1 != SIZE_UNSPEC) | |
2457 | as_warn (_("Forcing byte displacement")); | |
2458 | if (! issbyte (baseo)) | |
2459 | opP->error = _("byte displacement out of range"); | |
2460 | } | |
2461 | ||
2462 | break; | |
2463 | } | |
2464 | else if (siz1 == SIZE_UNSPEC | |
2465 | && opP->reg == PC | |
2466 | && isvar (&opP->disp) | |
2467 | && subs (&opP->disp) == NULL | |
2468 | #ifdef OBJ_ELF | |
2469 | /* If the displacement needs pic | |
2470 | relocation it cannot be relaxed. */ | |
2471 | && opP->disp.pic_reloc == pic_none | |
2472 | #endif | |
2473 | ) | |
2474 | { | |
2475 | /* The code in md_convert_frag_1 needs to be | |
2476 | able to adjust nextword. Call frag_grow | |
2477 | to ensure that we have enough space in | |
2478 | the frag obstack to make all the bytes | |
2479 | contiguous. */ | |
2480 | frag_grow (14); | |
8a104df9 KH |
2481 | nextword += baseo & 0xff; |
2482 | addword (nextword); | |
bd17c2c3 AM |
2483 | add_frag (adds (&opP->disp), |
2484 | SEXT (offs (&opP->disp)), | |
8a104df9 | 2485 | TAB (PCINDEX, SZ_UNDEF)); |
252b5132 RH |
2486 | |
2487 | break; | |
8a104df9 | 2488 | } |
252b5132 RH |
2489 | } |
2490 | } | |
2491 | else | |
2492 | { | |
36759679 | 2493 | nextword |= 0x40; /* No index reg. */ |
252b5132 RH |
2494 | if (opP->index.reg >= ZDATA0 |
2495 | && opP->index.reg <= ZDATA7) | |
2496 | nextword |= (opP->index.reg - ZDATA0) << 12; | |
2497 | else if (opP->index.reg >= ZADDR0 | |
2498 | || opP->index.reg <= ZADDR7) | |
2499 | nextword |= (opP->index.reg - ZADDR0 + 8) << 12; | |
2500 | } | |
2501 | ||
2502 | /* It isn't simple. */ | |
2503 | ||
2504 | if (cpu_of_arch (current_architecture) < m68020 | |
6da466c7 | 2505 | || arch_coldfire_p (current_architecture)) |
252b5132 RH |
2506 | opP->error = |
2507 | _("invalid operand mode for this architecture; needs 68020 or higher"); | |
2508 | ||
2509 | nextword |= 0x100; | |
2510 | /* If the guy specified a width, we assume that it is | |
2511 | wide enough. Maybe it isn't. If so, we lose. */ | |
2512 | switch (siz1) | |
2513 | { | |
2514 | case SIZE_UNSPEC: | |
2515 | if (isvar (&opP->disp) | |
2516 | ? m68k_rel32 | |
2517 | : ! issword (baseo)) | |
2518 | { | |
2519 | siz1 = SIZE_LONG; | |
2520 | nextword |= 0x30; | |
2521 | } | |
2522 | else if (! isvar (&opP->disp) && baseo == 0) | |
2523 | nextword |= 0x10; | |
2524 | else | |
2525 | { | |
2526 | nextword |= 0x20; | |
2527 | siz1 = SIZE_WORD; | |
2528 | } | |
2529 | break; | |
2530 | case SIZE_BYTE: | |
2531 | as_warn (_(":b not permitted; defaulting to :w")); | |
2532 | /* Fall through. */ | |
2533 | case SIZE_WORD: | |
2534 | nextword |= 0x20; | |
2535 | break; | |
2536 | case SIZE_LONG: | |
2537 | nextword |= 0x30; | |
2538 | break; | |
2539 | } | |
2540 | ||
67c1ffbe | 2541 | /* Figure out inner displacement stuff. */ |
252b5132 RH |
2542 | if (opP->mode == POST || opP->mode == PRE) |
2543 | { | |
2544 | if (cpu_of_arch (current_architecture) & cpu32) | |
2545 | opP->error = _("invalid operand mode for this architecture; needs 68020 or higher"); | |
2546 | switch (siz2) | |
2547 | { | |
2548 | case SIZE_UNSPEC: | |
2549 | if (isvar (&opP->odisp) | |
2550 | ? m68k_rel32 | |
2551 | : ! issword (outro)) | |
2552 | { | |
2553 | siz2 = SIZE_LONG; | |
2554 | nextword |= 0x3; | |
2555 | } | |
2556 | else if (! isvar (&opP->odisp) && outro == 0) | |
2557 | nextword |= 0x1; | |
2558 | else | |
2559 | { | |
2560 | nextword |= 0x2; | |
2561 | siz2 = SIZE_WORD; | |
2562 | } | |
2563 | break; | |
2564 | case 1: | |
2565 | as_warn (_(":b not permitted; defaulting to :w")); | |
2566 | /* Fall through. */ | |
2567 | case 2: | |
2568 | nextword |= 0x2; | |
2569 | break; | |
2570 | case 3: | |
2571 | nextword |= 0x3; | |
2572 | break; | |
2573 | } | |
2574 | if (opP->mode == POST | |
2575 | && (nextword & 0x40) == 0) | |
2576 | nextword |= 0x04; | |
2577 | } | |
2578 | addword (nextword); | |
2579 | ||
2580 | if (siz1 != SIZE_UNSPEC && isvar (&opP->disp)) | |
2581 | { | |
2582 | if (opP->reg == PC || opP->reg == ZPC) | |
2583 | add_fix (siz1 == SIZE_LONG ? 'l' : 'w', &opP->disp, 1, 2); | |
2584 | else | |
2585 | add_fix (siz1 == SIZE_LONG ? 'l' : 'w', &opP->disp, 0, 0); | |
2586 | } | |
2587 | if (siz1 == SIZE_LONG) | |
2588 | addword (baseo >> 16); | |
2589 | if (siz1 != SIZE_UNSPEC) | |
2590 | addword (baseo); | |
2591 | ||
2592 | if (siz2 != SIZE_UNSPEC && isvar (&opP->odisp)) | |
2593 | add_fix (siz2 == SIZE_LONG ? 'l' : 'w', &opP->odisp, 0, 0); | |
2594 | if (siz2 == SIZE_LONG) | |
2595 | addword (outro >> 16); | |
2596 | if (siz2 != SIZE_UNSPEC) | |
2597 | addword (outro); | |
2598 | ||
2599 | break; | |
2600 | ||
2601 | case ABSL: | |
3e602632 | 2602 | nextword = get_num (&opP->disp, 90); |
252b5132 RH |
2603 | switch (opP->disp.size) |
2604 | { | |
2605 | default: | |
2606 | abort (); | |
2607 | case SIZE_UNSPEC: | |
2608 | if (!isvar (&opP->disp) && issword (offs (&opP->disp))) | |
2609 | { | |
2610 | tmpreg = 0x38; /* 7.0 */ | |
2611 | addword (nextword); | |
2612 | break; | |
2613 | } | |
252b5132 RH |
2614 | if (isvar (&opP->disp) |
2615 | && !subs (&opP->disp) | |
2616 | && adds (&opP->disp) | |
2617 | #ifdef OBJ_ELF | |
2618 | /* If the displacement needs pic relocation it | |
2619 | cannot be relaxed. */ | |
2620 | && opP->disp.pic_reloc == pic_none | |
2621 | #endif | |
252b5132 RH |
2622 | && !flag_long_jumps |
2623 | && !strchr ("~%&$?", s[0])) | |
2624 | { | |
2625 | tmpreg = 0x3A; /* 7.2 */ | |
2626 | add_frag (adds (&opP->disp), | |
bd17c2c3 | 2627 | SEXT (offs (&opP->disp)), |
151337e8 | 2628 | TAB (ABSTOPCREL, SZ_UNDEF)); |
252b5132 RH |
2629 | break; |
2630 | } | |
36759679 | 2631 | /* Fall through into long. */ |
252b5132 RH |
2632 | case SIZE_LONG: |
2633 | if (isvar (&opP->disp)) | |
2634 | add_fix ('l', &opP->disp, 0, 0); | |
2635 | ||
2636 | tmpreg = 0x39;/* 7.1 mode */ | |
2637 | addword (nextword >> 16); | |
2638 | addword (nextword); | |
2639 | break; | |
2640 | ||
2641 | case SIZE_BYTE: | |
2642 | as_bad (_("unsupported byte value; use a different suffix")); | |
2643 | /* Fall through. */ | |
36759679 NC |
2644 | |
2645 | case SIZE_WORD: | |
252b5132 RH |
2646 | if (isvar (&opP->disp)) |
2647 | add_fix ('w', &opP->disp, 0, 0); | |
2648 | ||
2649 | tmpreg = 0x38;/* 7.0 mode */ | |
2650 | addword (nextword); | |
2651 | break; | |
2652 | } | |
2653 | break; | |
2654 | case CONTROL: | |
2655 | case FPREG: | |
2656 | default: | |
2657 | as_bad (_("unknown/incorrect operand")); | |
bc805888 | 2658 | /* abort (); */ |
252b5132 | 2659 | } |
fd99574b NC |
2660 | |
2661 | /* If s[0] is '4', then this is for the mac instructions | |
2662 | that can have a trailing_ampersand set. If so, set 0x100 | |
2663 | bit on tmpreg so install_gen_operand can check for it and | |
2664 | set the appropriate bit (word2, bit 5). */ | |
2665 | if (s[0] == '4') | |
2666 | { | |
2667 | if (opP->trailing_ampersand) | |
2668 | tmpreg |= 0x100; | |
2669 | } | |
252b5132 RH |
2670 | install_gen_operand (s[1], tmpreg); |
2671 | break; | |
2672 | ||
2673 | case '#': | |
2674 | case '^': | |
2675 | switch (s[1]) | |
2676 | { /* JF: I hate floating point! */ | |
2677 | case 'j': | |
2678 | tmpreg = 70; | |
2679 | break; | |
2680 | case '8': | |
2681 | tmpreg = 20; | |
2682 | break; | |
2683 | case 'C': | |
2684 | tmpreg = 50; | |
2685 | break; | |
2686 | case '3': | |
2687 | default: | |
3e602632 | 2688 | tmpreg = 90; |
252b5132 RH |
2689 | break; |
2690 | } | |
2691 | tmpreg = get_num (&opP->disp, tmpreg); | |
2692 | if (isvar (&opP->disp)) | |
2693 | add_fix (s[1], &opP->disp, 0, 0); | |
2694 | switch (s[1]) | |
2695 | { | |
2696 | case 'b': /* Danger: These do no check for | |
2697 | certain types of overflow. | |
2698 | user beware! */ | |
2699 | if (!isbyte (tmpreg)) | |
2700 | opP->error = _("out of range"); | |
2701 | insop (tmpreg, opcode); | |
2702 | if (isvar (&opP->disp)) | |
2703 | the_ins.reloc[the_ins.nrel - 1].n = | |
2704 | (opcode->m_codenum) * 2 + 1; | |
2705 | break; | |
2706 | case 'B': | |
2707 | if (!issbyte (tmpreg)) | |
2708 | opP->error = _("out of range"); | |
2709 | the_ins.opcode[the_ins.numo - 1] |= tmpreg & 0xff; | |
2710 | if (isvar (&opP->disp)) | |
2711 | the_ins.reloc[the_ins.nrel - 1].n = opcode->m_codenum * 2 - 1; | |
2712 | break; | |
2713 | case 'w': | |
2714 | if (!isword (tmpreg)) | |
2715 | opP->error = _("out of range"); | |
2716 | insop (tmpreg, opcode); | |
2717 | if (isvar (&opP->disp)) | |
2718 | the_ins.reloc[the_ins.nrel - 1].n = (opcode->m_codenum) * 2; | |
2719 | break; | |
2720 | case 'W': | |
2721 | if (!issword (tmpreg)) | |
2722 | opP->error = _("out of range"); | |
2723 | insop (tmpreg, opcode); | |
2724 | if (isvar (&opP->disp)) | |
2725 | the_ins.reloc[the_ins.nrel - 1].n = (opcode->m_codenum) * 2; | |
2726 | break; | |
2727 | case 'l': | |
2728 | /* Because of the way insop works, we put these two out | |
2729 | backwards. */ | |
2730 | insop (tmpreg, opcode); | |
2731 | insop (tmpreg >> 16, opcode); | |
2732 | if (isvar (&opP->disp)) | |
2733 | the_ins.reloc[the_ins.nrel - 1].n = (opcode->m_codenum) * 2; | |
2734 | break; | |
2735 | case '3': | |
2736 | tmpreg &= 0xFF; | |
2737 | case '8': | |
2738 | case 'C': | |
2739 | case 'j': | |
2740 | install_operand (s[1], tmpreg); | |
2741 | break; | |
2742 | default: | |
2743 | abort (); | |
2744 | } | |
2745 | break; | |
2746 | ||
2747 | case '+': | |
2748 | case '-': | |
2749 | case 'A': | |
2750 | case 'a': | |
2751 | install_operand (s[1], opP->reg - ADDR); | |
2752 | break; | |
2753 | ||
2754 | case 'B': | |
3e602632 | 2755 | tmpreg = get_num (&opP->disp, 90); |
252b5132 RH |
2756 | switch (s[1]) |
2757 | { | |
2758 | case 'B': | |
8390138c | 2759 | add_fix ('B', &opP->disp, 1, -1); |
252b5132 RH |
2760 | break; |
2761 | case 'W': | |
2762 | add_fix ('w', &opP->disp, 1, 0); | |
2763 | addword (0); | |
2764 | break; | |
2765 | case 'L': | |
2766 | long_branch: | |
151337e8 | 2767 | if (! HAVE_LONG_BRANCH (current_architecture)) |
81d4177b | 2768 | as_warn (_("Can't use long branches on 68000/68010/5200")); |
151337e8 | 2769 | the_ins.opcode[0] |= 0xff; |
252b5132 RH |
2770 | add_fix ('l', &opP->disp, 1, 0); |
2771 | addword (0); | |
2772 | addword (0); | |
2773 | break; | |
2774 | case 'g': | |
36759679 | 2775 | if (subs (&opP->disp)) /* We can't relax it. */ |
252b5132 RH |
2776 | goto long_branch; |
2777 | ||
2778 | #ifdef OBJ_ELF | |
2779 | /* If the displacement needs pic relocation it cannot be | |
2780 | relaxed. */ | |
2781 | if (opP->disp.pic_reloc != pic_none) | |
2782 | goto long_branch; | |
2783 | #endif | |
252b5132 | 2784 | /* This could either be a symbol, or an absolute |
151337e8 NC |
2785 | address. If it's an absolute address, turn it into |
2786 | an absolute jump right here and keep it out of the | |
2787 | relaxer. */ | |
2788 | if (adds (&opP->disp) == 0) | |
2789 | { | |
2790 | if (the_ins.opcode[0] == 0x6000) /* jbra */ | |
18566f55 | 2791 | the_ins.opcode[0] = 0x4EF9; |
151337e8 | 2792 | else if (the_ins.opcode[0] == 0x6100) /* jbsr */ |
18566f55 | 2793 | the_ins.opcode[0] = 0x4EB9; |
151337e8 NC |
2794 | else /* jCC */ |
2795 | { | |
2796 | the_ins.opcode[0] ^= 0x0100; | |
2797 | the_ins.opcode[0] |= 0x0006; | |
18566f55 | 2798 | addword (0x4EF9); |
151337e8 NC |
2799 | } |
2800 | add_fix ('l', &opP->disp, 0, 0); | |
2801 | addword (0); | |
2802 | addword (0); | |
2803 | break; | |
2804 | } | |
2805 | ||
2806 | /* Now we know it's going into the relaxer. Now figure | |
2807 | out which mode. We try in this order of preference: | |
2808 | long branch, absolute jump, byte/word branches only. */ | |
2809 | if (HAVE_LONG_BRANCH (current_architecture)) | |
bd17c2c3 AM |
2810 | add_frag (adds (&opP->disp), |
2811 | SEXT (offs (&opP->disp)), | |
151337e8 NC |
2812 | TAB (BRANCHBWL, SZ_UNDEF)); |
2813 | else if (! flag_keep_pcrel) | |
2814 | { | |
2815 | if ((the_ins.opcode[0] == 0x6000) | |
2816 | || (the_ins.opcode[0] == 0x6100)) | |
bd17c2c3 AM |
2817 | add_frag (adds (&opP->disp), |
2818 | SEXT (offs (&opP->disp)), | |
151337e8 NC |
2819 | TAB (BRABSJUNC, SZ_UNDEF)); |
2820 | else | |
bd17c2c3 AM |
2821 | add_frag (adds (&opP->disp), |
2822 | SEXT (offs (&opP->disp)), | |
151337e8 NC |
2823 | TAB (BRABSJCOND, SZ_UNDEF)); |
2824 | } | |
252b5132 | 2825 | else |
bd17c2c3 AM |
2826 | add_frag (adds (&opP->disp), |
2827 | SEXT (offs (&opP->disp)), | |
151337e8 | 2828 | TAB (BRANCHBW, SZ_UNDEF)); |
252b5132 RH |
2829 | break; |
2830 | case 'w': | |
2831 | if (isvar (&opP->disp)) | |
2832 | { | |
151337e8 NC |
2833 | /* Check for DBcc instructions. We can relax them, |
2834 | but only if we have long branches and/or absolute | |
2835 | jumps. */ | |
2836 | if (((the_ins.opcode[0] & 0xf0f8) == 0x50c8) | |
2837 | && (HAVE_LONG_BRANCH (current_architecture) | |
2838 | || (! flag_keep_pcrel))) | |
252b5132 | 2839 | { |
151337e8 | 2840 | if (HAVE_LONG_BRANCH (current_architecture)) |
bd17c2c3 AM |
2841 | add_frag (adds (&opP->disp), |
2842 | SEXT (offs (&opP->disp)), | |
151337e8 NC |
2843 | TAB (DBCCLBR, SZ_UNDEF)); |
2844 | else | |
bd17c2c3 AM |
2845 | add_frag (adds (&opP->disp), |
2846 | SEXT (offs (&opP->disp)), | |
151337e8 | 2847 | TAB (DBCCABSJ, SZ_UNDEF)); |
252b5132 RH |
2848 | break; |
2849 | } | |
252b5132 RH |
2850 | add_fix ('w', &opP->disp, 1, 0); |
2851 | } | |
2852 | addword (0); | |
2853 | break; | |
36759679 | 2854 | case 'C': /* Fixed size LONG coproc branches. */ |
252b5132 RH |
2855 | add_fix ('l', &opP->disp, 1, 0); |
2856 | addword (0); | |
2857 | addword (0); | |
2858 | break; | |
36759679 | 2859 | case 'c': /* Var size Coprocesssor branches. */ |
151337e8 | 2860 | if (subs (&opP->disp) || (adds (&opP->disp) == 0)) |
252b5132 | 2861 | { |
252b5132 RH |
2862 | the_ins.opcode[the_ins.numo - 1] |= 0x40; |
2863 | add_fix ('l', &opP->disp, 1, 0); | |
2864 | addword (0); | |
2865 | addword (0); | |
2866 | } | |
151337e8 | 2867 | else |
bd17c2c3 AM |
2868 | add_frag (adds (&opP->disp), |
2869 | SEXT (offs (&opP->disp)), | |
151337e8 | 2870 | TAB (FBRANCH, SZ_UNDEF)); |
252b5132 RH |
2871 | break; |
2872 | default: | |
2873 | abort (); | |
2874 | } | |
2875 | break; | |
2876 | ||
36759679 | 2877 | case 'C': /* Ignore it. */ |
252b5132 RH |
2878 | break; |
2879 | ||
36759679 | 2880 | case 'd': /* JF this is a kludge. */ |
252b5132 | 2881 | install_operand ('s', opP->reg - ADDR); |
3e602632 | 2882 | tmpreg = get_num (&opP->disp, 90); |
252b5132 RH |
2883 | if (!issword (tmpreg)) |
2884 | { | |
2885 | as_warn (_("Expression out of range, using 0")); | |
2886 | tmpreg = 0; | |
2887 | } | |
2888 | addword (tmpreg); | |
2889 | break; | |
2890 | ||
2891 | case 'D': | |
2892 | install_operand (s[1], opP->reg - DATA); | |
2893 | break; | |
2894 | ||
fd99574b NC |
2895 | case 'e': /* EMAC ACCx, reg/reg. */ |
2896 | install_operand (s[1], opP->reg - ACC); | |
2897 | break; | |
2898 | ||
36759679 | 2899 | case 'E': /* Ignore it. */ |
6da466c7 ILT |
2900 | break; |
2901 | ||
252b5132 RH |
2902 | case 'F': |
2903 | install_operand (s[1], opP->reg - FP0); | |
2904 | break; | |
2905 | ||
fd99574b NC |
2906 | case 'g': /* EMAC ACCEXTx. */ |
2907 | install_operand (s[1], opP->reg - ACCEXT01); | |
2908 | break; | |
2909 | ||
36759679 | 2910 | case 'G': /* Ignore it. */ |
6da466c7 ILT |
2911 | case 'H': |
2912 | break; | |
2913 | ||
252b5132 RH |
2914 | case 'I': |
2915 | tmpreg = opP->reg - COP0; | |
2916 | install_operand (s[1], tmpreg); | |
2917 | break; | |
2918 | ||
fd99574b NC |
2919 | case 'i': /* MAC/EMAC scale factor. */ |
2920 | install_operand (s[1], opP->mode == LSH ? 0x1 : 0x3); | |
2921 | break; | |
2922 | ||
36759679 | 2923 | case 'J': /* JF foo. */ |
252b5132 RH |
2924 | switch (opP->reg) |
2925 | { | |
2926 | case SFC: | |
2927 | tmpreg = 0x000; | |
2928 | break; | |
2929 | case DFC: | |
2930 | tmpreg = 0x001; | |
2931 | break; | |
2932 | case CACR: | |
2933 | tmpreg = 0x002; | |
2934 | break; | |
2935 | case TC: | |
2936 | tmpreg = 0x003; | |
2937 | break; | |
3e602632 | 2938 | case ACR0: |
252b5132 RH |
2939 | case ITT0: |
2940 | tmpreg = 0x004; | |
2941 | break; | |
3e602632 | 2942 | case ACR1: |
252b5132 RH |
2943 | case ITT1: |
2944 | tmpreg = 0x005; | |
2945 | break; | |
3e602632 | 2946 | case ACR2: |
252b5132 RH |
2947 | case DTT0: |
2948 | tmpreg = 0x006; | |
2949 | break; | |
3e602632 | 2950 | case ACR3: |
252b5132 RH |
2951 | case DTT1: |
2952 | tmpreg = 0x007; | |
2953 | break; | |
2954 | case BUSCR: | |
2955 | tmpreg = 0x008; | |
2956 | break; | |
2957 | ||
2958 | case USP: | |
2959 | tmpreg = 0x800; | |
2960 | break; | |
2961 | case VBR: | |
2962 | tmpreg = 0x801; | |
2963 | break; | |
2964 | case CAAR: | |
2965 | tmpreg = 0x802; | |
2966 | break; | |
2967 | case MSP: | |
2968 | tmpreg = 0x803; | |
2969 | break; | |
2970 | case ISP: | |
2971 | tmpreg = 0x804; | |
2972 | break; | |
2973 | case MMUSR: | |
2974 | tmpreg = 0x805; | |
2975 | break; | |
2976 | case URP: | |
2977 | tmpreg = 0x806; | |
2978 | break; | |
2979 | case SRP: | |
2980 | tmpreg = 0x807; | |
2981 | break; | |
2982 | case PCR: | |
2983 | tmpreg = 0x808; | |
2984 | break; | |
2985 | case ROMBAR: | |
2986 | tmpreg = 0xC00; | |
2987 | break; | |
3e602632 NC |
2988 | case ROMBAR1: |
2989 | tmpreg = 0xC01; | |
2990 | break; | |
2991 | case FLASHBAR: | |
252b5132 RH |
2992 | case RAMBAR0: |
2993 | tmpreg = 0xC04; | |
2994 | break; | |
3e602632 | 2995 | case RAMBAR: |
252b5132 RH |
2996 | case RAMBAR1: |
2997 | tmpreg = 0xC05; | |
2998 | break; | |
3e602632 NC |
2999 | case MPCR: |
3000 | tmpreg = 0xC0C; | |
3001 | break; | |
3002 | case EDRAMBAR: | |
3003 | tmpreg = 0xC0D; | |
3004 | break; | |
3005 | case MBAR0: | |
e80e0390 | 3006 | case MBAR2: |
3e602632 NC |
3007 | case SECMBAR: |
3008 | tmpreg = 0xC0E; | |
3009 | break; | |
3010 | case MBAR1: | |
252b5132 RH |
3011 | case MBAR: |
3012 | tmpreg = 0xC0F; | |
3013 | break; | |
3e602632 NC |
3014 | case PCR1U0: |
3015 | tmpreg = 0xD02; | |
3016 | break; | |
3017 | case PCR1L0: | |
3018 | tmpreg = 0xD03; | |
3019 | break; | |
3020 | case PCR2U0: | |
3021 | tmpreg = 0xD04; | |
3022 | break; | |
3023 | case PCR2L0: | |
3024 | tmpreg = 0xD05; | |
3025 | break; | |
3026 | case PCR3U0: | |
3027 | tmpreg = 0xD06; | |
3028 | break; | |
3029 | case PCR3L0: | |
3030 | tmpreg = 0xD07; | |
3031 | break; | |
3032 | case PCR1L1: | |
3033 | tmpreg = 0xD0A; | |
3034 | break; | |
3035 | case PCR1U1: | |
3036 | tmpreg = 0xD0B; | |
3037 | break; | |
3038 | case PCR2L1: | |
3039 | tmpreg = 0xD0C; | |
3040 | break; | |
3041 | case PCR2U1: | |
3042 | tmpreg = 0xD0D; | |
3043 | break; | |
3044 | case PCR3L1: | |
3045 | tmpreg = 0xD0E; | |
3046 | break; | |
3047 | case PCR3U1: | |
3048 | tmpreg = 0xD0F; | |
3049 | break; | |
252b5132 RH |
3050 | default: |
3051 | abort (); | |
3052 | } | |
3053 | install_operand (s[1], tmpreg); | |
3054 | break; | |
3055 | ||
3056 | case 'k': | |
3057 | tmpreg = get_num (&opP->disp, 55); | |
3058 | install_operand (s[1], tmpreg & 0x7f); | |
3059 | break; | |
3060 | ||
3061 | case 'l': | |
3062 | tmpreg = opP->mask; | |
3063 | if (s[1] == 'w') | |
3064 | { | |
3065 | if (tmpreg & 0x7FF0000) | |
3066 | as_bad (_("Floating point register in register list")); | |
3067 | insop (reverse_16_bits (tmpreg), opcode); | |
3068 | } | |
3069 | else | |
3070 | { | |
3071 | if (tmpreg & 0x700FFFF) | |
3072 | as_bad (_("Wrong register in floating-point reglist")); | |
3073 | install_operand (s[1], reverse_8_bits (tmpreg >> 16)); | |
3074 | } | |
3075 | break; | |
3076 | ||
3077 | case 'L': | |
3078 | tmpreg = opP->mask; | |
3079 | if (s[1] == 'w') | |
3080 | { | |
3081 | if (tmpreg & 0x7FF0000) | |
3082 | as_bad (_("Floating point register in register list")); | |
3083 | insop (tmpreg, opcode); | |
3084 | } | |
3085 | else if (s[1] == '8') | |
3086 | { | |
3087 | if (tmpreg & 0x0FFFFFF) | |
3088 | as_bad (_("incorrect register in reglist")); | |
3089 | install_operand (s[1], tmpreg >> 24); | |
3090 | } | |
3091 | else | |
3092 | { | |
3093 | if (tmpreg & 0x700FFFF) | |
3094 | as_bad (_("wrong register in floating-point reglist")); | |
3095 | else | |
3096 | install_operand (s[1], tmpreg >> 16); | |
3097 | } | |
3098 | break; | |
3099 | ||
3100 | case 'M': | |
3101 | install_operand (s[1], get_num (&opP->disp, 60)); | |
3102 | break; | |
3103 | ||
3104 | case 'O': | |
3105 | tmpreg = ((opP->mode == DREG) | |
8fce3f5e | 3106 | ? 0x20 + (int) (opP->reg - DATA) |
252b5132 RH |
3107 | : (get_num (&opP->disp, 40) & 0x1F)); |
3108 | install_operand (s[1], tmpreg); | |
3109 | break; | |
3110 | ||
3111 | case 'Q': | |
3112 | tmpreg = get_num (&opP->disp, 10); | |
3113 | if (tmpreg == 8) | |
3114 | tmpreg = 0; | |
3115 | install_operand (s[1], tmpreg); | |
3116 | break; | |
3117 | ||
3118 | case 'R': | |
3119 | /* This depends on the fact that ADDR registers are eight | |
3120 | more than their corresponding DATA regs, so the result | |
36759679 | 3121 | will have the ADDR_REG bit set. */ |
252b5132 RH |
3122 | install_operand (s[1], opP->reg - DATA); |
3123 | break; | |
3124 | ||
3125 | case 'r': | |
3126 | if (opP->mode == AINDR) | |
3127 | install_operand (s[1], opP->reg - DATA); | |
3128 | else | |
3129 | install_operand (s[1], opP->index.reg - DATA); | |
3130 | break; | |
3131 | ||
3132 | case 's': | |
3133 | if (opP->reg == FPI) | |
3134 | tmpreg = 0x1; | |
3135 | else if (opP->reg == FPS) | |
3136 | tmpreg = 0x2; | |
3137 | else if (opP->reg == FPC) | |
3138 | tmpreg = 0x4; | |
3139 | else | |
3140 | abort (); | |
3141 | install_operand (s[1], tmpreg); | |
3142 | break; | |
3143 | ||
36759679 | 3144 | case 'S': /* Ignore it. */ |
252b5132 RH |
3145 | break; |
3146 | ||
3147 | case 'T': | |
3148 | install_operand (s[1], get_num (&opP->disp, 30)); | |
3149 | break; | |
3150 | ||
36759679 | 3151 | case 'U': /* Ignore it. */ |
252b5132 RH |
3152 | break; |
3153 | ||
3154 | case 'c': | |
3155 | switch (opP->reg) | |
3156 | { | |
3157 | case NC: | |
3158 | tmpreg = 0; | |
3159 | break; | |
3160 | case DC: | |
3161 | tmpreg = 1; | |
3162 | break; | |
3163 | case IC: | |
3164 | tmpreg = 2; | |
3165 | break; | |
3166 | case BC: | |
3167 | tmpreg = 3; | |
3168 | break; | |
3169 | default: | |
3170 | as_fatal (_("failed sanity check")); | |
36759679 | 3171 | } /* switch on cache token. */ |
252b5132 RH |
3172 | install_operand (s[1], tmpreg); |
3173 | break; | |
3174 | #ifndef NO_68851 | |
92774660 | 3175 | /* JF: These are out of order, I fear. */ |
252b5132 RH |
3176 | case 'f': |
3177 | switch (opP->reg) | |
3178 | { | |
3179 | case SFC: | |
3180 | tmpreg = 0; | |
3181 | break; | |
3182 | case DFC: | |
3183 | tmpreg = 1; | |
3184 | break; | |
3185 | default: | |
3186 | abort (); | |
3187 | } | |
3188 | install_operand (s[1], tmpreg); | |
3189 | break; | |
3190 | ||
3191 | case '0': | |
3192 | case '1': | |
3193 | case '2': | |
3194 | switch (opP->reg) | |
3195 | { | |
3196 | case TC: | |
3197 | tmpreg = 0; | |
3198 | break; | |
3199 | case CAL: | |
3200 | tmpreg = 4; | |
3201 | break; | |
3202 | case VAL: | |
3203 | tmpreg = 5; | |
3204 | break; | |
3205 | case SCC: | |
3206 | tmpreg = 6; | |
3207 | break; | |
3208 | case AC: | |
3209 | tmpreg = 7; | |
3210 | break; | |
3211 | default: | |
3212 | abort (); | |
3213 | } | |
3214 | install_operand (s[1], tmpreg); | |
3215 | break; | |
3216 | ||
3217 | case 'V': | |
3218 | if (opP->reg == VAL) | |
3219 | break; | |
3220 | abort (); | |
3221 | ||
3222 | case 'W': | |
3223 | switch (opP->reg) | |
3224 | { | |
3225 | case DRP: | |
3226 | tmpreg = 1; | |
3227 | break; | |
3228 | case SRP: | |
3229 | tmpreg = 2; | |
3230 | break; | |
3231 | case CRP: | |
3232 | tmpreg = 3; | |
3233 | break; | |
3234 | default: | |
3235 | abort (); | |
3236 | } | |
3237 | install_operand (s[1], tmpreg); | |
3238 | break; | |
3239 | ||
3240 | case 'X': | |
3241 | switch (opP->reg) | |
3242 | { | |
3243 | case BAD: | |
3244 | case BAD + 1: | |
3245 | case BAD + 2: | |
3246 | case BAD + 3: | |
3247 | case BAD + 4: | |
3248 | case BAD + 5: | |
3249 | case BAD + 6: | |
3250 | case BAD + 7: | |
3251 | tmpreg = (4 << 10) | ((opP->reg - BAD) << 2); | |
3252 | break; | |
3253 | ||
3254 | case BAC: | |
3255 | case BAC + 1: | |
3256 | case BAC + 2: | |
3257 | case BAC + 3: | |
3258 | case BAC + 4: | |
3259 | case BAC + 5: | |
3260 | case BAC + 6: | |
3261 | case BAC + 7: | |
3262 | tmpreg = (5 << 10) | ((opP->reg - BAC) << 2); | |
3263 | break; | |
3264 | ||
3265 | default: | |
3266 | abort (); | |
3267 | } | |
3268 | install_operand (s[1], tmpreg); | |
3269 | break; | |
3270 | case 'Y': | |
3271 | know (opP->reg == PSR); | |
3272 | break; | |
3273 | case 'Z': | |
3274 | know (opP->reg == PCSR); | |
3275 | break; | |
3276 | #endif /* m68851 */ | |
3277 | case '3': | |
3278 | switch (opP->reg) | |
3279 | { | |
3280 | case TT0: | |
3281 | tmpreg = 2; | |
3282 | break; | |
3283 | case TT1: | |
3284 | tmpreg = 3; | |
3285 | break; | |
3286 | default: | |
3287 | abort (); | |
3288 | } | |
3289 | install_operand (s[1], tmpreg); | |
3290 | break; | |
3291 | case 't': | |
3292 | tmpreg = get_num (&opP->disp, 20); | |
3293 | install_operand (s[1], tmpreg); | |
3294 | break; | |
36759679 | 3295 | case '_': /* used only for move16 absolute 32-bit address. */ |
252b5132 RH |
3296 | if (isvar (&opP->disp)) |
3297 | add_fix ('l', &opP->disp, 0, 0); | |
3e602632 | 3298 | tmpreg = get_num (&opP->disp, 90); |
252b5132 RH |
3299 | addword (tmpreg >> 16); |
3300 | addword (tmpreg & 0xFFFF); | |
3301 | break; | |
6da466c7 ILT |
3302 | case 'u': |
3303 | install_operand (s[1], opP->reg - DATA0L); | |
3304 | opP->reg -= (DATA0L); | |
36759679 | 3305 | opP->reg &= 0x0F; /* remove upper/lower bit. */ |
6da466c7 | 3306 | break; |
3e602632 NC |
3307 | case 'x': |
3308 | tmpreg = get_num (&opP->disp, 80); | |
3309 | if (tmpreg == -1) | |
3310 | tmpreg = 0; | |
3311 | install_operand (s[1], tmpreg); | |
3312 | break; | |
252b5132 RH |
3313 | default: |
3314 | abort (); | |
3315 | } | |
3316 | } | |
3317 | ||
3318 | /* By the time whe get here (FINALLY) the_ins contains the complete | |
92774660 | 3319 | instruction, ready to be emitted. . . */ |
252b5132 RH |
3320 | } |
3321 | ||
3322 | static int | |
31302357 | 3323 | reverse_16_bits (int in) |
252b5132 RH |
3324 | { |
3325 | int out = 0; | |
3326 | int n; | |
3327 | ||
3328 | static int mask[16] = | |
3329 | { | |
3330 | 0x0001, 0x0002, 0x0004, 0x0008, 0x0010, 0x0020, 0x0040, 0x0080, | |
3331 | 0x0100, 0x0200, 0x0400, 0x0800, 0x1000, 0x2000, 0x4000, 0x8000 | |
3332 | }; | |
3333 | for (n = 0; n < 16; n++) | |
3334 | { | |
3335 | if (in & mask[n]) | |
3336 | out |= mask[15 - n]; | |
3337 | } | |
3338 | return out; | |
3339 | } /* reverse_16_bits() */ | |
3340 | ||
3341 | static int | |
31302357 | 3342 | reverse_8_bits (int in) |
252b5132 RH |
3343 | { |
3344 | int out = 0; | |
3345 | int n; | |
3346 | ||
3347 | static int mask[8] = | |
3348 | { | |
3349 | 0x0001, 0x0002, 0x0004, 0x0008, 0x0010, 0x0020, 0x0040, 0x0080, | |
3350 | }; | |
3351 | ||
3352 | for (n = 0; n < 8; n++) | |
3353 | { | |
3354 | if (in & mask[n]) | |
3355 | out |= mask[7 - n]; | |
3356 | } | |
3357 | return out; | |
3358 | } /* reverse_8_bits() */ | |
3359 | ||
3360 | /* Cause an extra frag to be generated here, inserting up to 10 bytes | |
3361 | (that value is chosen in the frag_var call in md_assemble). TYPE | |
3362 | is the subtype of the frag to be generated; its primary type is | |
3363 | rs_machine_dependent. | |
3364 | ||
3365 | The TYPE parameter is also used by md_convert_frag_1 and | |
3366 | md_estimate_size_before_relax. The appropriate type of fixup will | |
3367 | be emitted by md_convert_frag_1. | |
3368 | ||
3369 | ADD becomes the FR_SYMBOL field of the frag, and OFF the FR_OFFSET. */ | |
3370 | static void | |
31302357 | 3371 | install_operand (int mode, int val) |
252b5132 RH |
3372 | { |
3373 | switch (mode) | |
3374 | { | |
3375 | case 's': | |
36759679 | 3376 | the_ins.opcode[0] |= val & 0xFF; /* JF FF is for M kludge. */ |
252b5132 RH |
3377 | break; |
3378 | case 'd': | |
3379 | the_ins.opcode[0] |= val << 9; | |
3380 | break; | |
3381 | case '1': | |
3382 | the_ins.opcode[1] |= val << 12; | |
3383 | break; | |
3384 | case '2': | |
3385 | the_ins.opcode[1] |= val << 6; | |
3386 | break; | |
3387 | case '3': | |
3388 | the_ins.opcode[1] |= val; | |
3389 | break; | |
3390 | case '4': | |
3391 | the_ins.opcode[2] |= val << 12; | |
3392 | break; | |
3393 | case '5': | |
3394 | the_ins.opcode[2] |= val << 6; | |
3395 | break; | |
3396 | case '6': | |
3397 | /* DANGER! This is a hack to force cas2l and cas2w cmds to be | |
3398 | three words long! */ | |
3399 | the_ins.numo++; | |
3400 | the_ins.opcode[2] |= val; | |
3401 | break; | |
3402 | case '7': | |
3403 | the_ins.opcode[1] |= val << 7; | |
3404 | break; | |
3405 | case '8': | |
3406 | the_ins.opcode[1] |= val << 10; | |
3407 | break; | |
3408 | #ifndef NO_68851 | |
3409 | case '9': | |
3410 | the_ins.opcode[1] |= val << 5; | |
3411 | break; | |
3412 | #endif | |
3413 | ||
3414 | case 't': | |
3415 | the_ins.opcode[1] |= (val << 10) | (val << 7); | |
3416 | break; | |
3417 | case 'D': | |
3418 | the_ins.opcode[1] |= (val << 12) | val; | |
3419 | break; | |
3420 | case 'g': | |
3421 | the_ins.opcode[0] |= val = 0xff; | |
3422 | break; | |
3423 | case 'i': | |
3424 | the_ins.opcode[0] |= val << 9; | |
3425 | break; | |
3426 | case 'C': | |
3427 | the_ins.opcode[1] |= val; | |
3428 | break; | |
3429 | case 'j': | |
3430 | the_ins.opcode[1] |= val; | |
36759679 | 3431 | the_ins.numo++; /* What a hack. */ |
252b5132 RH |
3432 | break; |
3433 | case 'k': | |
3434 | the_ins.opcode[1] |= val << 4; | |
3435 | break; | |
3436 | case 'b': | |
3437 | case 'w': | |
3438 | case 'W': | |
3439 | case 'l': | |
3440 | break; | |
3441 | case 'e': | |
3442 | the_ins.opcode[0] |= (val << 6); | |
3443 | break; | |
3444 | case 'L': | |
3445 | the_ins.opcode[1] = (val >> 16); | |
3446 | the_ins.opcode[2] = val & 0xffff; | |
3447 | break; | |
6da466c7 ILT |
3448 | case 'm': |
3449 | the_ins.opcode[0] |= ((val & 0x8) << (6 - 3)); | |
3450 | the_ins.opcode[0] |= ((val & 0x7) << 9); | |
3451 | the_ins.opcode[1] |= ((val & 0x10) << (7 - 4)); | |
3452 | break; | |
fd99574b | 3453 | case 'n': /* MAC/EMAC Rx on !load. */ |
6da466c7 ILT |
3454 | the_ins.opcode[0] |= ((val & 0x8) << (6 - 3)); |
3455 | the_ins.opcode[0] |= ((val & 0x7) << 9); | |
fd99574b | 3456 | the_ins.opcode[1] |= ((val & 0x10) << (7 - 4)); |
6da466c7 | 3457 | break; |
fd99574b | 3458 | case 'o': /* MAC/EMAC Rx on load. */ |
6da466c7 ILT |
3459 | the_ins.opcode[1] |= val << 12; |
3460 | the_ins.opcode[1] |= ((val & 0x10) << (7 - 4)); | |
3461 | break; | |
fd99574b | 3462 | case 'M': /* MAC/EMAC Ry on !load. */ |
6da466c7 ILT |
3463 | the_ins.opcode[0] |= (val & 0xF); |
3464 | the_ins.opcode[1] |= ((val & 0x10) << (6 - 4)); | |
3465 | break; | |
fd99574b | 3466 | case 'N': /* MAC/EMAC Ry on load. */ |
6da466c7 ILT |
3467 | the_ins.opcode[1] |= (val & 0xF); |
3468 | the_ins.opcode[1] |= ((val & 0x10) << (6 - 4)); | |
3469 | break; | |
3470 | case 'h': | |
3471 | the_ins.opcode[1] |= ((val != 1) << 10); | |
3472 | break; | |
fd99574b NC |
3473 | case 'F': |
3474 | the_ins.opcode[0] |= ((val & 0x3) << 9); | |
3475 | break; | |
3476 | case 'f': | |
3477 | the_ins.opcode[0] |= ((val & 0x3) << 0); | |
3478 | break; | |
be8c092b | 3479 | case 'G': /* EMAC accumulator in a EMAC load instruction. */ |
fd99574b NC |
3480 | the_ins.opcode[0] |= ((~val & 0x1) << 7); |
3481 | the_ins.opcode[1] |= ((val & 0x2) << (4 - 1)); | |
3482 | break; | |
be8c092b | 3483 | case 'H': /* EMAC accumulator in a EMAC non-load instruction. */ |
fd99574b NC |
3484 | the_ins.opcode[0] |= ((val & 0x1) << 7); |
3485 | the_ins.opcode[1] |= ((val & 0x2) << (4 - 1)); | |
3486 | break; | |
3487 | case 'I': | |
3488 | the_ins.opcode[1] |= ((val & 0x3) << 9); | |
3489 | break; | |
3490 | case ']': | |
3491 | the_ins.opcode[0] |= (val & 0x1) <<10; | |
3492 | break; | |
252b5132 RH |
3493 | case 'c': |
3494 | default: | |
3495 | as_fatal (_("failed sanity check.")); | |
3496 | } | |
6b6e92f4 | 3497 | } |
252b5132 RH |
3498 | |
3499 | static void | |
31302357 | 3500 | install_gen_operand (int mode, int val) |
252b5132 RH |
3501 | { |
3502 | switch (mode) | |
3503 | { | |
fd99574b NC |
3504 | case '/': /* Special for mask loads for mac/msac insns with |
3505 | possible mask; trailing_ampersend set in bit 8. */ | |
3506 | the_ins.opcode[0] |= (val & 0x3f); | |
3507 | the_ins.opcode[1] |= (((val & 0x100) >> 8) << 5); | |
3508 | break; | |
252b5132 RH |
3509 | case 's': |
3510 | the_ins.opcode[0] |= val; | |
3511 | break; | |
3512 | case 'd': | |
3513 | /* This is a kludge!!! */ | |
3514 | the_ins.opcode[0] |= (val & 0x07) << 9 | (val & 0x38) << 3; | |
3515 | break; | |
3516 | case 'b': | |
3517 | case 'w': | |
3518 | case 'l': | |
3519 | case 'f': | |
3520 | case 'F': | |
3521 | case 'x': | |
3522 | case 'p': | |
3523 | the_ins.opcode[0] |= val; | |
3524 | break; | |
36759679 | 3525 | /* more stuff goes here. */ |
252b5132 RH |
3526 | default: |
3527 | as_fatal (_("failed sanity check.")); | |
3528 | } | |
6b6e92f4 | 3529 | } |
252b5132 | 3530 | |
6b6e92f4 NC |
3531 | /* Verify that we have some number of paren pairs, do m68k_ip_op(), and |
3532 | then deal with the bitfield hack. */ | |
252b5132 RH |
3533 | |
3534 | static char * | |
31302357 | 3535 | crack_operand (char *str, struct m68k_op *opP) |
252b5132 RH |
3536 | { |
3537 | register int parens; | |
3538 | register int c; | |
3539 | register char *beg_str; | |
3540 | int inquote = 0; | |
3541 | ||
3542 | if (!str) | |
3543 | { | |
3544 | return str; | |
3545 | } | |
3546 | beg_str = str; | |
3547 | for (parens = 0; *str && (parens > 0 || inquote || notend (str)); str++) | |
3548 | { | |
3549 | if (! inquote) | |
3550 | { | |
3551 | if (*str == '(') | |
3552 | parens++; | |
3553 | else if (*str == ')') | |
3554 | { | |
3555 | if (!parens) | |
36759679 | 3556 | { /* ERROR. */ |
252b5132 RH |
3557 | opP->error = _("Extra )"); |
3558 | return str; | |
3559 | } | |
3560 | --parens; | |
3561 | } | |
3562 | } | |
3563 | if (flag_mri && *str == '\'') | |
3564 | inquote = ! inquote; | |
3565 | } | |
3566 | if (!*str && parens) | |
36759679 | 3567 | { /* ERROR. */ |
252b5132 RH |
3568 | opP->error = _("Missing )"); |
3569 | return str; | |
3570 | } | |
3571 | c = *str; | |
3572 | *str = '\0'; | |
3573 | if (m68k_ip_op (beg_str, opP) != 0) | |
3574 | { | |
3575 | *str = c; | |
3576 | return str; | |
3577 | } | |
3578 | *str = c; | |
3579 | if (c == '}') | |
36759679 | 3580 | c = *++str; /* JF bitfield hack. */ |
252b5132 RH |
3581 | if (c) |
3582 | { | |
3583 | c = *++str; | |
3584 | if (!c) | |
3585 | as_bad (_("Missing operand")); | |
3586 | } | |
3587 | ||
3588 | /* Detect MRI REG symbols and convert them to REGLSTs. */ | |
3589 | if (opP->mode == CONTROL && (int)opP->reg < 0) | |
3590 | { | |
3591 | opP->mode = REGLST; | |
3592 | opP->mask = ~(int)opP->reg; | |
3593 | opP->reg = 0; | |
3594 | } | |
3595 | ||
3596 | return str; | |
3597 | } | |
3598 | ||
3599 | /* This is the guts of the machine-dependent assembler. STR points to a | |
3600 | machine dependent instruction. This function is supposed to emit | |
3601 | the frags/bytes it assembles to. | |
3602 | */ | |
3603 | ||
3604 | static void | |
31302357 | 3605 | insert_reg (const char *regname, int regnum) |
252b5132 RH |
3606 | { |
3607 | char buf[100]; | |
3608 | int i; | |
3609 | ||
3610 | #ifdef REGISTER_PREFIX | |
3611 | if (!flag_reg_prefix_optional) | |
3612 | { | |
3613 | buf[0] = REGISTER_PREFIX; | |
3614 | strcpy (buf + 1, regname); | |
3615 | regname = buf; | |
3616 | } | |
3617 | #endif | |
3618 | ||
3619 | symbol_table_insert (symbol_new (regname, reg_section, regnum, | |
3620 | &zero_address_frag)); | |
3621 | ||
3622 | for (i = 0; regname[i]; i++) | |
3882b010 | 3623 | buf[i] = TOUPPER (regname[i]); |
252b5132 RH |
3624 | buf[i] = '\0'; |
3625 | ||
3626 | symbol_table_insert (symbol_new (buf, reg_section, regnum, | |
3627 | &zero_address_frag)); | |
3628 | } | |
3629 | ||
3630 | struct init_entry | |
3631 | { | |
3632 | const char *name; | |
3633 | int number; | |
3634 | }; | |
3635 | ||
3636 | static const struct init_entry init_table[] = | |
3637 | { | |
3638 | { "d0", DATA0 }, | |
3639 | { "d1", DATA1 }, | |
3640 | { "d2", DATA2 }, | |
3641 | { "d3", DATA3 }, | |
3642 | { "d4", DATA4 }, | |
3643 | { "d5", DATA5 }, | |
3644 | { "d6", DATA6 }, | |
3645 | { "d7", DATA7 }, | |
3646 | { "a0", ADDR0 }, | |
3647 | { "a1", ADDR1 }, | |
3648 | { "a2", ADDR2 }, | |
3649 | { "a3", ADDR3 }, | |
3650 | { "a4", ADDR4 }, | |
3651 | { "a5", ADDR5 }, | |
3652 | { "a6", ADDR6 }, | |
3653 | { "fp", ADDR6 }, | |
3654 | { "a7", ADDR7 }, | |
3655 | { "sp", ADDR7 }, | |
3656 | { "ssp", ADDR7 }, | |
3657 | { "fp0", FP0 }, | |
3658 | { "fp1", FP1 }, | |
3659 | { "fp2", FP2 }, | |
3660 | { "fp3", FP3 }, | |
3661 | { "fp4", FP4 }, | |
3662 | { "fp5", FP5 }, | |
3663 | { "fp6", FP6 }, | |
3664 | { "fp7", FP7 }, | |
3665 | { "fpi", FPI }, | |
3666 | { "fpiar", FPI }, | |
3667 | { "fpc", FPI }, | |
3668 | { "fps", FPS }, | |
3669 | { "fpsr", FPS }, | |
3670 | { "fpc", FPC }, | |
3671 | { "fpcr", FPC }, | |
3672 | { "control", FPC }, | |
3673 | { "status", FPS }, | |
3674 | { "iaddr", FPI }, | |
3675 | ||
3676 | { "cop0", COP0 }, | |
3677 | { "cop1", COP1 }, | |
3678 | { "cop2", COP2 }, | |
3679 | { "cop3", COP3 }, | |
3680 | { "cop4", COP4 }, | |
3681 | { "cop5", COP5 }, | |
3682 | { "cop6", COP6 }, | |
3683 | { "cop7", COP7 }, | |
3684 | { "pc", PC }, | |
3685 | { "zpc", ZPC }, | |
3686 | { "sr", SR }, | |
3687 | ||
3688 | { "ccr", CCR }, | |
3689 | { "cc", CCR }, | |
3690 | ||
6da466c7 | 3691 | { "acc", ACC }, |
fd99574b NC |
3692 | { "acc0", ACC }, |
3693 | { "acc1", ACC1 }, | |
3694 | { "acc2", ACC2 }, | |
3695 | { "acc3", ACC3 }, | |
3696 | { "accext01", ACCEXT01 }, | |
3697 | { "accext23", ACCEXT23 }, | |
6da466c7 ILT |
3698 | { "macsr", MACSR }, |
3699 | { "mask", MASK }, | |
3700 | ||
36759679 NC |
3701 | /* Control registers. */ |
3702 | { "sfc", SFC }, /* Source Function Code. */ | |
252b5132 | 3703 | { "sfcr", SFC }, |
36759679 | 3704 | { "dfc", DFC }, /* Destination Function Code. */ |
252b5132 | 3705 | { "dfcr", DFC }, |
36759679 NC |
3706 | { "cacr", CACR }, /* Cache Control Register. */ |
3707 | { "caar", CAAR }, /* Cache Address Register. */ | |
252b5132 | 3708 | |
36759679 NC |
3709 | { "usp", USP }, /* User Stack Pointer. */ |
3710 | { "vbr", VBR }, /* Vector Base Register. */ | |
3711 | { "msp", MSP }, /* Master Stack Pointer. */ | |
3712 | { "isp", ISP }, /* Interrupt Stack Pointer. */ | |
252b5132 | 3713 | |
36759679 NC |
3714 | { "itt0", ITT0 }, /* Instruction Transparent Translation Reg 0. */ |
3715 | { "itt1", ITT1 }, /* Instruction Transparent Translation Reg 1. */ | |
3716 | { "dtt0", DTT0 }, /* Data Transparent Translation Register 0. */ | |
3717 | { "dtt1", DTT1 }, /* Data Transparent Translation Register 1. */ | |
252b5132 RH |
3718 | |
3719 | /* 68ec040 versions of same */ | |
36759679 NC |
3720 | { "iacr0", ITT0 }, /* Instruction Access Control Register 0. */ |
3721 | { "iacr1", ITT1 }, /* Instruction Access Control Register 0. */ | |
3722 | { "dacr0", DTT0 }, /* Data Access Control Register 0. */ | |
3723 | { "dacr1", DTT1 }, /* Data Access Control Register 0. */ | |
252b5132 RH |
3724 | |
3725 | /* mcf5200 versions of same. The ColdFire programmer's reference | |
3726 | manual indicated that the order is 2,3,0,1, but Ken Rose | |
3727 | <rose@netcom.com> says that 0,1,2,3 is the correct order. */ | |
3e602632 NC |
3728 | { "acr0", ACR0 }, /* Access Control Unit 0. */ |
3729 | { "acr1", ACR1 }, /* Access Control Unit 1. */ | |
3730 | { "acr2", ACR2 }, /* Access Control Unit 2. */ | |
3731 | { "acr3", ACR3 }, /* Access Control Unit 3. */ | |
252b5132 | 3732 | |
36759679 | 3733 | { "tc", TC }, /* MMU Translation Control Register. */ |
252b5132 RH |
3734 | { "tcr", TC }, |
3735 | ||
36759679 NC |
3736 | { "mmusr", MMUSR }, /* MMU Status Register. */ |
3737 | { "srp", SRP }, /* User Root Pointer. */ | |
3738 | { "urp", URP }, /* Supervisor Root Pointer. */ | |
252b5132 RH |
3739 | |
3740 | { "buscr", BUSCR }, | |
3741 | { "pcr", PCR }, | |
3742 | ||
36759679 NC |
3743 | { "rombar", ROMBAR }, /* ROM Base Address Register. */ |
3744 | { "rambar0", RAMBAR0 }, /* ROM Base Address Register. */ | |
3745 | { "rambar1", RAMBAR1 }, /* ROM Base Address Register. */ | |
3746 | { "mbar", MBAR }, /* Module Base Address Register. */ | |
3e602632 NC |
3747 | |
3748 | { "mbar0", MBAR0 }, /* mcfv4e registers. */ | |
3749 | { "mbar1", MBAR1 }, /* mcfv4e registers. */ | |
3750 | { "rombar0", ROMBAR }, /* mcfv4e registers. */ | |
3751 | { "rombar1", ROMBAR1 }, /* mcfv4e registers. */ | |
3752 | { "mpcr", MPCR }, /* mcfv4e registers. */ | |
3753 | { "edrambar", EDRAMBAR }, /* mcfv4e registers. */ | |
3754 | { "secmbar", SECMBAR }, /* mcfv4e registers. */ | |
3755 | { "asid", TC }, /* mcfv4e registers. */ | |
3756 | { "mmubar", BUSCR }, /* mcfv4e registers. */ | |
3757 | { "pcr1u0", PCR1U0 }, /* mcfv4e registers. */ | |
3758 | { "pcr1l0", PCR1L0 }, /* mcfv4e registers. */ | |
3759 | { "pcr2u0", PCR2U0 }, /* mcfv4e registers. */ | |
3760 | { "pcr2l0", PCR2L0 }, /* mcfv4e registers. */ | |
3761 | { "pcr3u0", PCR3U0 }, /* mcfv4e registers. */ | |
3762 | { "pcr3l0", PCR3L0 }, /* mcfv4e registers. */ | |
3763 | { "pcr1u1", PCR1U1 }, /* mcfv4e registers. */ | |
3764 | { "pcr1l1", PCR1L1 }, /* mcfv4e registers. */ | |
3765 | { "pcr2u1", PCR2U1 }, /* mcfv4e registers. */ | |
3766 | { "pcr2l1", PCR2L1 }, /* mcfv4e registers. */ | |
3767 | { "pcr3u1", PCR3U1 }, /* mcfv4e registers. */ | |
3768 | { "pcr3l1", PCR3L1 }, /* mcfv4e registers. */ | |
3769 | ||
3770 | { "flashbar", FLASHBAR }, /* mcf528x registers. */ | |
3771 | { "rambar", RAMBAR }, /* mcf528x registers. */ | |
e80e0390 NC |
3772 | |
3773 | { "mbar2", MBAR2 }, /* mcf5249 registers. */ | |
36759679 | 3774 | /* End of control registers. */ |
252b5132 RH |
3775 | |
3776 | { "ac", AC }, | |
3777 | { "bc", BC }, | |
3778 | { "cal", CAL }, | |
3779 | { "crp", CRP }, | |
3780 | { "drp", DRP }, | |
3781 | { "pcsr", PCSR }, | |
3782 | { "psr", PSR }, | |
3783 | { "scc", SCC }, | |
3784 | { "val", VAL }, | |
3785 | { "bad0", BAD0 }, | |
3786 | { "bad1", BAD1 }, | |
3787 | { "bad2", BAD2 }, | |
3788 | { "bad3", BAD3 }, | |
3789 | { "bad4", BAD4 }, | |
3790 | { "bad5", BAD5 }, | |
3791 | { "bad6", BAD6 }, | |
3792 | { "bad7", BAD7 }, | |
3793 | { "bac0", BAC0 }, | |
3794 | { "bac1", BAC1 }, | |
3795 | { "bac2", BAC2 }, | |
3796 | { "bac3", BAC3 }, | |
3797 | { "bac4", BAC4 }, | |
3798 | { "bac5", BAC5 }, | |
3799 | { "bac6", BAC6 }, | |
3800 | { "bac7", BAC7 }, | |
3801 | ||
3802 | { "ic", IC }, | |
3803 | { "dc", DC }, | |
3804 | { "nc", NC }, | |
3805 | ||
3806 | { "tt0", TT0 }, | |
3807 | { "tt1", TT1 }, | |
36759679 | 3808 | /* 68ec030 versions of same. */ |
252b5132 RH |
3809 | { "ac0", TT0 }, |
3810 | { "ac1", TT1 }, | |
36759679 | 3811 | /* 68ec030 access control unit, identical to 030 MMU status reg. */ |
252b5132 RH |
3812 | { "acusr", PSR }, |
3813 | ||
3814 | /* Suppressed data and address registers. */ | |
3815 | { "zd0", ZDATA0 }, | |
3816 | { "zd1", ZDATA1 }, | |
3817 | { "zd2", ZDATA2 }, | |
3818 | { "zd3", ZDATA3 }, | |
3819 | { "zd4", ZDATA4 }, | |
3820 | { "zd5", ZDATA5 }, | |
3821 | { "zd6", ZDATA6 }, | |
3822 | { "zd7", ZDATA7 }, | |
3823 | { "za0", ZADDR0 }, | |
3824 | { "za1", ZADDR1 }, | |
3825 | { "za2", ZADDR2 }, | |
3826 | { "za3", ZADDR3 }, | |
3827 | { "za4", ZADDR4 }, | |
3828 | { "za5", ZADDR5 }, | |
3829 | { "za6", ZADDR6 }, | |
3830 | { "za7", ZADDR7 }, | |
3831 | ||
92774660 | 3832 | /* Upper and lower data and address registers, used by macw and msacw. */ |
6da466c7 ILT |
3833 | { "d0l", DATA0L }, |
3834 | { "d1l", DATA1L }, | |
3835 | { "d2l", DATA2L }, | |
3836 | { "d3l", DATA3L }, | |
3837 | { "d4l", DATA4L }, | |
3838 | { "d5l", DATA5L }, | |
3839 | { "d6l", DATA6L }, | |
3840 | { "d7l", DATA7L }, | |
3841 | ||
3842 | { "a0l", ADDR0L }, | |
3843 | { "a1l", ADDR1L }, | |
3844 | { "a2l", ADDR2L }, | |
3845 | { "a3l", ADDR3L }, | |
3846 | { "a4l", ADDR4L }, | |
3847 | { "a5l", ADDR5L }, | |
3848 | { "a6l", ADDR6L }, | |
3849 | { "a7l", ADDR7L }, | |
3850 | ||
3851 | { "d0u", DATA0U }, | |
3852 | { "d1u", DATA1U }, | |
3853 | { "d2u", DATA2U }, | |
3854 | { "d3u", DATA3U }, | |
3855 | { "d4u", DATA4U }, | |
3856 | { "d5u", DATA5U }, | |
3857 | { "d6u", DATA6U }, | |
3858 | { "d7u", DATA7U }, | |
3859 | ||
3860 | { "a0u", ADDR0U }, | |
3861 | { "a1u", ADDR1U }, | |
3862 | { "a2u", ADDR2U }, | |
3863 | { "a3u", ADDR3U }, | |
3864 | { "a4u", ADDR4U }, | |
3865 | { "a5u", ADDR5U }, | |
3866 | { "a6u", ADDR6U }, | |
3867 | { "a7u", ADDR7U }, | |
3868 | ||
252b5132 RH |
3869 | { 0, 0 } |
3870 | }; | |
3871 | ||
3872 | static void | |
31302357 | 3873 | init_regtable (void) |
252b5132 RH |
3874 | { |
3875 | int i; | |
3876 | for (i = 0; init_table[i].name; i++) | |
3877 | insert_reg (init_table[i].name, init_table[i].number); | |
3878 | } | |
3879 | ||
3880 | static int no_68851, no_68881; | |
3881 | ||
3882 | #ifdef OBJ_AOUT | |
3883 | /* a.out machine type. Default to 68020. */ | |
3884 | int m68k_aout_machtype = 2; | |
3885 | #endif | |
3886 | ||
3887 | void | |
31302357 | 3888 | md_assemble (char *str) |
252b5132 RH |
3889 | { |
3890 | const char *er; | |
3891 | short *fromP; | |
3892 | char *toP = NULL; | |
3893 | int m, n = 0; | |
3894 | char *to_beg_P; | |
3895 | int shorts_this_frag; | |
3896 | fixS *fixP; | |
3897 | ||
3898 | /* In MRI mode, the instruction and operands are separated by a | |
3899 | space. Anything following the operands is a comment. The label | |
3900 | has already been removed. */ | |
3901 | if (flag_mri) | |
3902 | { | |
3903 | char *s; | |
3904 | int fields = 0; | |
3905 | int infield = 0; | |
3906 | int inquote = 0; | |
3907 | ||
3908 | for (s = str; *s != '\0'; s++) | |
3909 | { | |
3910 | if ((*s == ' ' || *s == '\t') && ! inquote) | |
3911 | { | |
3912 | if (infield) | |
3913 | { | |
3914 | ++fields; | |
3915 | if (fields >= 2) | |
3916 | { | |
3917 | *s = '\0'; | |
3918 | break; | |
3919 | } | |
3920 | infield = 0; | |
3921 | } | |
3922 | } | |
3923 | else | |
3924 | { | |
3925 | if (! infield) | |
3926 | infield = 1; | |
3927 | if (*s == '\'') | |
3928 | inquote = ! inquote; | |
3929 | } | |
3930 | } | |
3931 | } | |
3932 | ||
31302357 | 3933 | memset (&the_ins, '\0', sizeof (the_ins)); |
252b5132 RH |
3934 | m68k_ip (str); |
3935 | er = the_ins.error; | |
3936 | if (!er) | |
3937 | { | |
3938 | for (n = 0; n < the_ins.numargs; n++) | |
3939 | if (the_ins.operands[n].error) | |
3940 | { | |
3941 | er = the_ins.operands[n].error; | |
3942 | break; | |
3943 | } | |
3944 | } | |
3945 | if (er) | |
3946 | { | |
3947 | as_bad (_("%s -- statement `%s' ignored"), er, str); | |
3948 | return; | |
3949 | } | |
3950 | ||
3951 | /* If there is a current label, record that it marks an instruction. */ | |
3952 | if (current_label != NULL) | |
3953 | { | |
3954 | current_label->text = 1; | |
3955 | current_label = NULL; | |
3956 | } | |
3957 | ||
f27a3839 AS |
3958 | #ifdef OBJ_ELF |
3959 | /* Tie dwarf2 debug info to the address at the start of the insn. */ | |
3960 | dwarf2_emit_insn (0); | |
3961 | #endif | |
3962 | ||
252b5132 RH |
3963 | if (the_ins.nfrag == 0) |
3964 | { | |
36759679 | 3965 | /* No frag hacking involved; just put it out. */ |
252b5132 RH |
3966 | toP = frag_more (2 * the_ins.numo); |
3967 | fromP = &the_ins.opcode[0]; | |
3968 | for (m = the_ins.numo; m; --m) | |
3969 | { | |
3970 | md_number_to_chars (toP, (long) (*fromP), 2); | |
3971 | toP += 2; | |
3972 | fromP++; | |
3973 | } | |
36759679 | 3974 | /* Put out symbol-dependent info. */ |
252b5132 RH |
3975 | for (m = 0; m < the_ins.nrel; m++) |
3976 | { | |
3977 | switch (the_ins.reloc[m].wid) | |
3978 | { | |
3979 | case 'B': | |
3980 | n = 1; | |
3981 | break; | |
3982 | case 'b': | |
3983 | n = 1; | |
3984 | break; | |
3985 | case '3': | |
3986 | n = 1; | |
3987 | break; | |
3988 | case 'w': | |
3989 | case 'W': | |
3990 | n = 2; | |
3991 | break; | |
3992 | case 'l': | |
3993 | n = 4; | |
3994 | break; | |
3995 | default: | |
3996 | as_fatal (_("Don't know how to figure width of %c in md_assemble()"), | |
3997 | the_ins.reloc[m].wid); | |
3998 | } | |
3999 | ||
4000 | fixP = fix_new_exp (frag_now, | |
4001 | ((toP - frag_now->fr_literal) | |
4002 | - the_ins.numo * 2 + the_ins.reloc[m].n), | |
4003 | n, | |
4004 | &the_ins.reloc[m].exp, | |
4005 | the_ins.reloc[m].pcrel, | |
4006 | get_reloc_code (n, the_ins.reloc[m].pcrel, | |
4007 | the_ins.reloc[m].pic_reloc)); | |
4008 | fixP->fx_pcrel_adjust = the_ins.reloc[m].pcrel_fix; | |
4009 | if (the_ins.reloc[m].wid == 'B') | |
4010 | fixP->fx_signed = 1; | |
4011 | } | |
4012 | return; | |
4013 | } | |
4014 | ||
36759679 | 4015 | /* There's some frag hacking. */ |
fbe572f9 AM |
4016 | { |
4017 | /* Calculate the max frag size. */ | |
4018 | int wid; | |
4019 | ||
4020 | wid = 2 * the_ins.fragb[0].fragoff; | |
4021 | for (n = 1; n < the_ins.nfrag; n++) | |
4022 | wid += 2 * (the_ins.numo - the_ins.fragb[n - 1].fragoff); | |
4023 | /* frag_var part. */ | |
4024 | wid += 10; | |
4025 | /* Make sure the whole insn fits in one chunk, in particular that | |
4026 | the var part is attached, as we access one byte before the | |
4027 | variable frag for byte branches. */ | |
4028 | frag_grow (wid); | |
4029 | } | |
4030 | ||
252b5132 RH |
4031 | for (n = 0, fromP = &the_ins.opcode[0]; n < the_ins.nfrag; n++) |
4032 | { | |
4033 | int wid; | |
4034 | ||
4035 | if (n == 0) | |
4036 | wid = 2 * the_ins.fragb[n].fragoff; | |
4037 | else | |
4038 | wid = 2 * (the_ins.numo - the_ins.fragb[n - 1].fragoff); | |
4039 | toP = frag_more (wid); | |
4040 | to_beg_P = toP; | |
4041 | shorts_this_frag = 0; | |
4042 | for (m = wid / 2; m; --m) | |
4043 | { | |
4044 | md_number_to_chars (toP, (long) (*fromP), 2); | |
4045 | toP += 2; | |
4046 | fromP++; | |
4047 | shorts_this_frag++; | |
4048 | } | |
4049 | for (m = 0; m < the_ins.nrel; m++) | |
4050 | { | |
4051 | if ((the_ins.reloc[m].n) >= 2 * shorts_this_frag) | |
4052 | { | |
4053 | the_ins.reloc[m].n -= 2 * shorts_this_frag; | |
4054 | break; | |
4055 | } | |
4056 | wid = the_ins.reloc[m].wid; | |
4057 | if (wid == 0) | |
4058 | continue; | |
4059 | the_ins.reloc[m].wid = 0; | |
4060 | wid = (wid == 'b') ? 1 : (wid == 'w') ? 2 : (wid == 'l') ? 4 : 4000; | |
4061 | ||
4062 | fixP = fix_new_exp (frag_now, | |
4063 | ((toP - frag_now->fr_literal) | |
4064 | - the_ins.numo * 2 + the_ins.reloc[m].n), | |
4065 | wid, | |
4066 | &the_ins.reloc[m].exp, | |
4067 | the_ins.reloc[m].pcrel, | |
4068 | get_reloc_code (wid, the_ins.reloc[m].pcrel, | |
4069 | the_ins.reloc[m].pic_reloc)); | |
4070 | fixP->fx_pcrel_adjust = the_ins.reloc[m].pcrel_fix; | |
4071 | } | |
4072 | (void) frag_var (rs_machine_dependent, 10, 0, | |
4073 | (relax_substateT) (the_ins.fragb[n].fragty), | |
4074 | the_ins.fragb[n].fadd, the_ins.fragb[n].foff, to_beg_P); | |
4075 | } | |
4076 | n = (the_ins.numo - the_ins.fragb[n - 1].fragoff); | |
4077 | shorts_this_frag = 0; | |
4078 | if (n) | |
4079 | { | |
055d1eb0 | 4080 | toP = frag_more (n * 2); |
252b5132 RH |
4081 | while (n--) |
4082 | { | |
4083 | md_number_to_chars (toP, (long) (*fromP), 2); | |
4084 | toP += 2; | |
4085 | fromP++; | |
4086 | shorts_this_frag++; | |
4087 | } | |
4088 | } | |
4089 | for (m = 0; m < the_ins.nrel; m++) | |
4090 | { | |
4091 | int wid; | |
4092 | ||
4093 | wid = the_ins.reloc[m].wid; | |
4094 | if (wid == 0) | |
4095 | continue; | |
4096 | the_ins.reloc[m].wid = 0; | |
4097 | wid = (wid == 'b') ? 1 : (wid == 'w') ? 2 : (wid == 'l') ? 4 : 4000; | |
4098 | ||
4099 | fixP = fix_new_exp (frag_now, | |
4100 | ((the_ins.reloc[m].n + toP - frag_now->fr_literal) | |
4101 | - shorts_this_frag * 2), | |
4102 | wid, | |
4103 | &the_ins.reloc[m].exp, | |
4104 | the_ins.reloc[m].pcrel, | |
4105 | get_reloc_code (wid, the_ins.reloc[m].pcrel, | |
4106 | the_ins.reloc[m].pic_reloc)); | |
4107 | fixP->fx_pcrel_adjust = the_ins.reloc[m].pcrel_fix; | |
4108 | } | |
4109 | } | |
4110 | ||
60fed2d3 NC |
4111 | /* Comparison function used by qsort to rank the opcode entries by name. */ |
4112 | ||
4113 | static int | |
4114 | m68k_compare_opcode (const void * v1, const void * v2) | |
4115 | { | |
4116 | struct m68k_opcode * op1, * op2; | |
4117 | int ret; | |
4118 | ||
4119 | op1 = *(struct m68k_opcode **) v1; | |
4120 | op2 = *(struct m68k_opcode **) v2; | |
4121 | ||
4122 | /* Compare the two names. If different, return the comparison. | |
4123 | If the same, return the order they are in the opcode table. */ | |
4124 | ret = strcmp (op1->name, op2->name); | |
4125 | if (ret) | |
4126 | return ret; | |
4127 | if (op1 < op2) | |
4128 | return -1; | |
4129 | return 0; | |
4130 | } | |
4131 | ||
252b5132 | 4132 | void |
60fed2d3 | 4133 | md_begin (void) |
252b5132 | 4134 | { |
60fed2d3 NC |
4135 | const struct m68k_opcode *ins; |
4136 | struct m68k_incant *hack, *slak; | |
4137 | const char *retval = 0; /* Empty string, or error msg text. */ | |
4138 | int i; | |
4139 | ||
4140 | /* Set up hash tables with 68000 instructions. | |
4141 | similar to what the vax assembler does. */ | |
252b5132 RH |
4142 | /* RMS claims the thing to do is take the m68k-opcode.h table, and make |
4143 | a copy of it at runtime, adding in the information we want but isn't | |
4144 | there. I think it'd be better to have an awk script hack the table | |
4145 | at compile time. Or even just xstr the table and use it as-is. But | |
4146 | my lord ghod hath spoken, so we do it this way. Excuse the ugly var | |
4147 | names. */ | |
4148 | ||
252b5132 RH |
4149 | if (flag_mri) |
4150 | { | |
4151 | flag_reg_prefix_optional = 1; | |
4152 | m68k_abspcadd = 1; | |
4153 | if (! m68k_rel32_from_cmdline) | |
4154 | m68k_rel32 = 0; | |
4155 | } | |
4156 | ||
60fed2d3 NC |
4157 | /* First sort the opcode table into alphabetical order to seperate |
4158 | the order that the assembler wants to see the opcodes from the | |
4159 | order that the disassembler wants to see them. */ | |
4160 | m68k_sorted_opcodes = xmalloc (m68k_numopcodes * sizeof (* m68k_sorted_opcodes)); | |
4161 | if (!m68k_sorted_opcodes) | |
4162 | as_fatal (_("Internal Error: Can't allocate m68k_sorted_opcodes of size %d"), | |
045b540e | 4163 | m68k_numopcodes * ((int) sizeof (* m68k_sorted_opcodes))); |
60fed2d3 NC |
4164 | |
4165 | for (i = m68k_numopcodes; i--;) | |
4166 | m68k_sorted_opcodes[i] = m68k_opcodes + i; | |
4167 | ||
4168 | qsort (m68k_sorted_opcodes, m68k_numopcodes, | |
4169 | sizeof (m68k_sorted_opcodes[0]), m68k_compare_opcode); | |
4170 | ||
252b5132 RH |
4171 | op_hash = hash_new (); |
4172 | ||
4173 | obstack_begin (&robyn, 4000); | |
4174 | for (i = 0; i < m68k_numopcodes; i++) | |
4175 | { | |
4176 | hack = slak = (struct m68k_incant *) obstack_alloc (&robyn, sizeof (struct m68k_incant)); | |
4177 | do | |
4178 | { | |
60fed2d3 NC |
4179 | ins = m68k_sorted_opcodes[i]; |
4180 | ||
4181 | /* We *could* ignore insns that don't match our | |
4182 | arch here by just leaving them out of the hash. */ | |
252b5132 RH |
4183 | slak->m_operands = ins->args; |
4184 | slak->m_opnum = strlen (slak->m_operands) / 2; | |
4185 | slak->m_arch = ins->arch; | |
4186 | slak->m_opcode = ins->opcode; | |
36759679 | 4187 | /* This is kludgey. */ |
252b5132 RH |
4188 | slak->m_codenum = ((ins->match) & 0xffffL) ? 2 : 1; |
4189 | if (i + 1 != m68k_numopcodes | |
60fed2d3 | 4190 | && !strcmp (ins->name, m68k_sorted_opcodes[i + 1]->name)) |
252b5132 | 4191 | { |
60fed2d3 | 4192 | slak->m_next = obstack_alloc (&robyn, sizeof (struct m68k_incant)); |
252b5132 RH |
4193 | i++; |
4194 | } | |
4195 | else | |
4196 | slak->m_next = 0; | |
4197 | slak = slak->m_next; | |
4198 | } | |
4199 | while (slak); | |
4200 | ||
4201 | retval = hash_insert (op_hash, ins->name, (char *) hack); | |
4202 | if (retval) | |
4203 | as_fatal (_("Internal Error: Can't hash %s: %s"), ins->name, retval); | |
4204 | } | |
4205 | ||
4206 | for (i = 0; i < m68k_numaliases; i++) | |
4207 | { | |
4208 | const char *name = m68k_opcode_aliases[i].primary; | |
4209 | const char *alias = m68k_opcode_aliases[i].alias; | |
4210 | PTR val = hash_find (op_hash, name); | |
60fed2d3 | 4211 | |
252b5132 RH |
4212 | if (!val) |
4213 | as_fatal (_("Internal Error: Can't find %s in hash table"), name); | |
4214 | retval = hash_insert (op_hash, alias, val); | |
4215 | if (retval) | |
4216 | as_fatal (_("Internal Error: Can't hash %s: %s"), alias, retval); | |
4217 | } | |
4218 | ||
4219 | /* In MRI mode, all unsized branches are variable sized. Normally, | |
4220 | they are word sized. */ | |
4221 | if (flag_mri) | |
4222 | { | |
4223 | static struct m68k_opcode_alias mri_aliases[] = | |
4224 | { | |
4225 | { "bhi", "jhi", }, | |
4226 | { "bls", "jls", }, | |
4227 | { "bcc", "jcc", }, | |
4228 | { "bcs", "jcs", }, | |
4229 | { "bne", "jne", }, | |
4230 | { "beq", "jeq", }, | |
4231 | { "bvc", "jvc", }, | |
4232 | { "bvs", "jvs", }, | |
4233 | { "bpl", "jpl", }, | |
4234 | { "bmi", "jmi", }, | |
4235 | { "bge", "jge", }, | |
4236 | { "blt", "jlt", }, | |
4237 | { "bgt", "jgt", }, | |
4238 | { "ble", "jle", }, | |
4239 | { "bra", "jra", }, | |
4240 | { "bsr", "jbsr", }, | |
4241 | }; | |
4242 | ||
8fce3f5e AM |
4243 | for (i = 0; |
4244 | i < (int) (sizeof mri_aliases / sizeof mri_aliases[0]); | |
4245 | i++) | |
252b5132 RH |
4246 | { |
4247 | const char *name = mri_aliases[i].primary; | |
4248 | const char *alias = mri_aliases[i].alias; | |
4249 | PTR val = hash_find (op_hash, name); | |
60fed2d3 | 4250 | |
252b5132 RH |
4251 | if (!val) |
4252 | as_fatal (_("Internal Error: Can't find %s in hash table"), name); | |
4253 | retval = hash_jam (op_hash, alias, val); | |
4254 | if (retval) | |
4255 | as_fatal (_("Internal Error: Can't hash %s: %s"), alias, retval); | |
4256 | } | |
4257 | } | |
4258 | ||
8fce3f5e | 4259 | for (i = 0; i < (int) sizeof (notend_table); i++) |
252b5132 RH |
4260 | { |
4261 | notend_table[i] = 0; | |
4262 | alt_notend_table[i] = 0; | |
4263 | } | |
60fed2d3 | 4264 | |
252b5132 RH |
4265 | notend_table[','] = 1; |
4266 | notend_table['{'] = 1; | |
4267 | notend_table['}'] = 1; | |
4268 | alt_notend_table['a'] = 1; | |
4269 | alt_notend_table['A'] = 1; | |
4270 | alt_notend_table['d'] = 1; | |
4271 | alt_notend_table['D'] = 1; | |
4272 | alt_notend_table['#'] = 1; | |
4273 | alt_notend_table['&'] = 1; | |
4274 | alt_notend_table['f'] = 1; | |
4275 | alt_notend_table['F'] = 1; | |
4276 | #ifdef REGISTER_PREFIX | |
4277 | alt_notend_table[REGISTER_PREFIX] = 1; | |
4278 | #endif | |
4279 | ||
4280 | /* We need to put '(' in alt_notend_table to handle | |
60fed2d3 | 4281 | cas2 %d0:%d2,%d3:%d4,(%a0):(%a1) */ |
252b5132 RH |
4282 | alt_notend_table['('] = 1; |
4283 | ||
4284 | /* We need to put '@' in alt_notend_table to handle | |
60fed2d3 | 4285 | cas2 %d0:%d2,%d3:%d4,@(%d0):@(%d1) */ |
252b5132 RH |
4286 | alt_notend_table['@'] = 1; |
4287 | ||
4288 | /* We need to put digits in alt_notend_table to handle | |
60fed2d3 | 4289 | bfextu %d0{24:1},%d0 */ |
252b5132 RH |
4290 | alt_notend_table['0'] = 1; |
4291 | alt_notend_table['1'] = 1; | |
4292 | alt_notend_table['2'] = 1; | |
4293 | alt_notend_table['3'] = 1; | |
4294 | alt_notend_table['4'] = 1; | |
4295 | alt_notend_table['5'] = 1; | |
4296 | alt_notend_table['6'] = 1; | |
4297 | alt_notend_table['7'] = 1; | |
4298 | alt_notend_table['8'] = 1; | |
4299 | alt_notend_table['9'] = 1; | |
4300 | ||
4301 | #ifndef MIT_SYNTAX_ONLY | |
4302 | /* Insert pseudo ops, these have to go into the opcode table since | |
36759679 | 4303 | gas expects pseudo ops to start with a dot. */ |
252b5132 RH |
4304 | { |
4305 | int n = 0; | |
60fed2d3 | 4306 | |
252b5132 RH |
4307 | while (mote_pseudo_table[n].poc_name) |
4308 | { | |
60fed2d3 | 4309 | hack = obstack_alloc (&robyn, sizeof (struct m68k_incant)); |
252b5132 RH |
4310 | hash_insert (op_hash, |
4311 | mote_pseudo_table[n].poc_name, (char *) hack); | |
4312 | hack->m_operands = 0; | |
4313 | hack->m_opnum = n; | |
4314 | n++; | |
4315 | } | |
4316 | } | |
4317 | #endif | |
4318 | ||
4319 | init_regtable (); | |
4320 | ||
4321 | #ifdef OBJ_ELF | |
4322 | record_alignment (text_section, 2); | |
4323 | record_alignment (data_section, 2); | |
4324 | record_alignment (bss_section, 2); | |
4325 | #endif | |
4326 | } | |
4327 | ||
4328 | static void | |
31302357 | 4329 | select_control_regs (void) |
252b5132 RH |
4330 | { |
4331 | /* Note which set of "movec" control registers is available. */ | |
6b6e92f4 | 4332 | switch (current_chip) |
252b5132 | 4333 | { |
4f2a7c9e | 4334 | case 0: |
6b6e92f4 NC |
4335 | if (verbose) |
4336 | as_warn (_("architecture not yet selected: defaulting to 68020")); | |
4f2a7c9e NC |
4337 | control_regs = m68020_control_regs; |
4338 | break; | |
4339 | ||
252b5132 RH |
4340 | case m68000: |
4341 | control_regs = m68000_control_regs; | |
4342 | break; | |
4343 | case m68010: | |
4344 | control_regs = m68010_control_regs; | |
4345 | break; | |
4346 | case m68020: | |
4347 | case m68030: | |
4348 | control_regs = m68020_control_regs; | |
4349 | break; | |
4350 | case m68040: | |
4351 | control_regs = m68040_control_regs; | |
4352 | break; | |
4353 | case m68060: | |
4354 | control_regs = m68060_control_regs; | |
4355 | break; | |
4356 | case cpu32: | |
4357 | control_regs = cpu32_control_regs; | |
4358 | break; | |
4359 | case mcf5200: | |
6da466c7 ILT |
4360 | case mcf5206e: |
4361 | case mcf5307: | |
dc84e067 | 4362 | case mcf5407: |
6da466c7 | 4363 | control_regs = mcf_control_regs; |
252b5132 | 4364 | break; |
e80e0390 NC |
4365 | case mcf5249: |
4366 | control_regs = mcf5249_control_regs; | |
4367 | break; | |
3e602632 | 4368 | case mcf528x: |
6b6e92f4 | 4369 | case mcf521x: |
3e602632 NC |
4370 | control_regs = mcf528x_control_regs; |
4371 | break; | |
6b6e92f4 NC |
4372 | case mcf5470: |
4373 | case mcf5480: | |
3e602632 NC |
4374 | control_regs = mcfv4e_control_regs; |
4375 | break; | |
252b5132 RH |
4376 | default: |
4377 | abort (); | |
4378 | } | |
4379 | } | |
4380 | ||
4381 | void | |
31302357 | 4382 | m68k_init_after_args (void) |
252b5132 RH |
4383 | { |
4384 | if (cpu_of_arch (current_architecture) == 0) | |
4385 | { | |
4386 | int i; | |
4387 | const char *default_cpu = TARGET_CPU; | |
4388 | ||
4389 | if (*default_cpu == 'm') | |
4390 | default_cpu++; | |
4391 | for (i = 0; i < n_archs; i++) | |
4392 | if (strcasecmp (default_cpu, archs[i].name) == 0) | |
4393 | break; | |
4394 | if (i == n_archs) | |
4395 | { | |
4396 | as_bad (_("unrecognized default cpu `%s' ???"), TARGET_CPU); | |
4397 | current_architecture |= m68020; | |
4398 | } | |
4399 | else | |
4400 | current_architecture |= archs[i].arch; | |
4401 | } | |
4402 | /* Permit m68881 specification with all cpus; those that can't work | |
4403 | with a coprocessor could be doing emulation. */ | |
4404 | if (current_architecture & m68851) | |
4405 | { | |
4406 | if (current_architecture & m68040) | |
60fed2d3 | 4407 | as_warn (_("68040 and 68851 specified; mmu instructions may assemble incorrectly")); |
252b5132 RH |
4408 | } |
4409 | /* What other incompatibilities could we check for? */ | |
4410 | ||
4411 | /* Toss in some default assumptions about coprocessors. */ | |
4412 | if (!no_68881 | |
4413 | && (cpu_of_arch (current_architecture) | |
4414 | /* Can CPU32 have a 68881 coprocessor?? */ | |
4415 | & (m68020 | m68030 | cpu32))) | |
60fed2d3 NC |
4416 | current_architecture |= m68881; |
4417 | ||
252b5132 RH |
4418 | if (!no_68851 |
4419 | && (cpu_of_arch (current_architecture) & m68020up) != 0 | |
4420 | && (cpu_of_arch (current_architecture) & m68040up) == 0) | |
60fed2d3 NC |
4421 | current_architecture |= m68851; |
4422 | ||
252b5132 RH |
4423 | if (no_68881 && (current_architecture & m68881)) |
4424 | as_bad (_("options for 68881 and no-68881 both given")); | |
60fed2d3 | 4425 | |
252b5132 RH |
4426 | if (no_68851 && (current_architecture & m68851)) |
4427 | as_bad (_("options for 68851 and no-68851 both given")); | |
4428 | ||
4429 | #ifdef OBJ_AOUT | |
4430 | /* Work out the magic number. This isn't very general. */ | |
4431 | if (current_architecture & m68000) | |
4432 | m68k_aout_machtype = 0; | |
4433 | else if (current_architecture & m68010) | |
4434 | m68k_aout_machtype = 1; | |
4435 | else if (current_architecture & m68020) | |
4436 | m68k_aout_machtype = 2; | |
4437 | else | |
4438 | m68k_aout_machtype = 2; | |
4439 | #endif | |
4440 | ||
4441 | /* Note which set of "movec" control registers is available. */ | |
4442 | select_control_regs (); | |
4443 | ||
4444 | if (cpu_of_arch (current_architecture) < m68020 | |
6da466c7 | 4445 | || arch_coldfire_p (current_architecture)) |
252b5132 RH |
4446 | md_relax_table[TAB (PCINDEX, BYTE)].rlx_more = 0; |
4447 | } | |
4448 | \f | |
4449 | /* This is called when a label is defined. */ | |
4450 | ||
4451 | void | |
31302357 | 4452 | m68k_frob_label (symbolS *sym) |
252b5132 RH |
4453 | { |
4454 | struct label_line *n; | |
4455 | ||
4456 | n = (struct label_line *) xmalloc (sizeof *n); | |
4457 | n->next = labels; | |
4458 | n->label = sym; | |
4459 | as_where (&n->file, &n->line); | |
4460 | n->text = 0; | |
4461 | labels = n; | |
4462 | current_label = n; | |
4463 | } | |
4464 | ||
4465 | /* This is called when a value that is not an instruction is emitted. */ | |
4466 | ||
4467 | void | |
31302357 | 4468 | m68k_flush_pending_output (void) |
252b5132 RH |
4469 | { |
4470 | current_label = NULL; | |
4471 | } | |
4472 | ||
4473 | /* This is called at the end of the assembly, when the final value of | |
4474 | the label is known. We warn if this is a text symbol aligned at an | |
4475 | odd location. */ | |
4476 | ||
4477 | void | |
31302357 | 4478 | m68k_frob_symbol (symbolS *sym) |
252b5132 RH |
4479 | { |
4480 | if (S_GET_SEGMENT (sym) == reg_section | |
4481 | && (int) S_GET_VALUE (sym) < 0) | |
4482 | { | |
4483 | S_SET_SEGMENT (sym, absolute_section); | |
4484 | S_SET_VALUE (sym, ~(int)S_GET_VALUE (sym)); | |
4485 | } | |
4486 | else if ((S_GET_VALUE (sym) & 1) != 0) | |
4487 | { | |
4488 | struct label_line *l; | |
4489 | ||
4490 | for (l = labels; l != NULL; l = l->next) | |
4491 | { | |
4492 | if (l->label == sym) | |
4493 | { | |
4494 | if (l->text) | |
4495 | as_warn_where (l->file, l->line, | |
4496 | _("text label `%s' aligned to odd boundary"), | |
4497 | S_GET_NAME (sym)); | |
4498 | break; | |
4499 | } | |
4500 | } | |
4501 | } | |
4502 | } | |
4503 | \f | |
4504 | /* This is called if we go in or out of MRI mode because of the .mri | |
4505 | pseudo-op. */ | |
4506 | ||
4507 | void | |
31302357 | 4508 | m68k_mri_mode_change (int on) |
252b5132 RH |
4509 | { |
4510 | if (on) | |
4511 | { | |
4512 | if (! flag_reg_prefix_optional) | |
4513 | { | |
4514 | flag_reg_prefix_optional = 1; | |
4515 | #ifdef REGISTER_PREFIX | |
4516 | init_regtable (); | |
4517 | #endif | |
4518 | } | |
4519 | m68k_abspcadd = 1; | |
4520 | if (! m68k_rel32_from_cmdline) | |
4521 | m68k_rel32 = 0; | |
4522 | } | |
4523 | else | |
4524 | { | |
4525 | if (! reg_prefix_optional_seen) | |
4526 | { | |
4527 | #ifdef REGISTER_PREFIX_OPTIONAL | |
4528 | flag_reg_prefix_optional = REGISTER_PREFIX_OPTIONAL; | |
4529 | #else | |
4530 | flag_reg_prefix_optional = 0; | |
4531 | #endif | |
4532 | #ifdef REGISTER_PREFIX | |
4533 | init_regtable (); | |
4534 | #endif | |
4535 | } | |
4536 | m68k_abspcadd = 0; | |
4537 | if (! m68k_rel32_from_cmdline) | |
4538 | m68k_rel32 = 1; | |
4539 | } | |
4540 | } | |
4541 | ||
36759679 | 4542 | /* Equal to MAX_PRECISION in atof-ieee.c. */ |
252b5132 RH |
4543 | #define MAX_LITTLENUMS 6 |
4544 | ||
4545 | /* Turn a string in input_line_pointer into a floating point constant | |
bc0d738a NC |
4546 | of type TYPE, and store the appropriate bytes in *LITP. The number |
4547 | of LITTLENUMS emitted is stored in *SIZEP. An error message is | |
252b5132 RH |
4548 | returned, or NULL on OK. */ |
4549 | ||
4550 | char * | |
31302357 | 4551 | md_atof (int type, char *litP, int *sizeP) |
252b5132 RH |
4552 | { |
4553 | int prec; | |
4554 | LITTLENUM_TYPE words[MAX_LITTLENUMS]; | |
4555 | LITTLENUM_TYPE *wordP; | |
4556 | char *t; | |
4557 | ||
4558 | switch (type) | |
4559 | { | |
4560 | case 'f': | |
4561 | case 'F': | |
4562 | case 's': | |
4563 | case 'S': | |
4564 | prec = 2; | |
4565 | break; | |
4566 | ||
4567 | case 'd': | |
4568 | case 'D': | |
4569 | case 'r': | |
4570 | case 'R': | |
4571 | prec = 4; | |
4572 | break; | |
4573 | ||
4574 | case 'x': | |
4575 | case 'X': | |
4576 | prec = 6; | |
4577 | break; | |
4578 | ||
4579 | case 'p': | |
4580 | case 'P': | |
4581 | prec = 6; | |
4582 | break; | |
4583 | ||
4584 | default: | |
4585 | *sizeP = 0; | |
4586 | return _("Bad call to MD_ATOF()"); | |
4587 | } | |
4588 | t = atof_ieee (input_line_pointer, type, words); | |
4589 | if (t) | |
4590 | input_line_pointer = t; | |
4591 | ||
4592 | *sizeP = prec * sizeof (LITTLENUM_TYPE); | |
4593 | for (wordP = words; prec--;) | |
4594 | { | |
4595 | md_number_to_chars (litP, (long) (*wordP++), sizeof (LITTLENUM_TYPE)); | |
4596 | litP += sizeof (LITTLENUM_TYPE); | |
4597 | } | |
4598 | return 0; | |
4599 | } | |
4600 | ||
4601 | void | |
31302357 | 4602 | md_number_to_chars (char *buf, valueT val, int n) |
252b5132 RH |
4603 | { |
4604 | number_to_chars_bigendian (buf, val, n); | |
4605 | } | |
4606 | ||
94f592af | 4607 | void |
31302357 | 4608 | md_apply_fix3 (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED) |
252b5132 | 4609 | { |
bbe8ef22 | 4610 | offsetT val = *valP; |
252b5132 RH |
4611 | addressT upper_limit; |
4612 | offsetT lower_limit; | |
4613 | ||
4614 | /* This is unnecessary but it convinces the native rs6000 compiler | |
4615 | to generate the code we want. */ | |
4616 | char *buf = fixP->fx_frag->fr_literal; | |
4617 | buf += fixP->fx_where; | |
36759679 | 4618 | /* End ibm compiler workaround. */ |
252b5132 | 4619 | |
bd17c2c3 | 4620 | val = SEXT (val); |
252b5132 | 4621 | |
94f592af NC |
4622 | if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0) |
4623 | fixP->fx_done = 1; | |
4624 | ||
252b5132 RH |
4625 | #ifdef OBJ_ELF |
4626 | if (fixP->fx_addsy) | |
4627 | { | |
4628 | memset (buf, 0, fixP->fx_size); | |
36759679 | 4629 | fixP->fx_addnumber = val; /* Remember value for emit_reloc. */ |
252b5132 RH |
4630 | |
4631 | if (fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT | |
4632 | && !S_IS_DEFINED (fixP->fx_addsy) | |
4633 | && !S_IS_WEAK (fixP->fx_addsy)) | |
4634 | S_SET_WEAK (fixP->fx_addsy); | |
4635 | return; | |
4636 | } | |
4637 | #endif | |
4638 | ||
4639 | #ifdef BFD_ASSEMBLER | |
4640 | if (fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT | |
4641 | || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY) | |
4642 | return; | |
4643 | #endif | |
4644 | ||
4645 | switch (fixP->fx_size) | |
4646 | { | |
94f592af NC |
4647 | /* The cast to offsetT below are necessary to make code |
4648 | correct for machines where ints are smaller than offsetT. */ | |
252b5132 RH |
4649 | case 1: |
4650 | *buf++ = val; | |
4651 | upper_limit = 0x7f; | |
4652 | lower_limit = - (offsetT) 0x80; | |
4653 | break; | |
4654 | case 2: | |
4655 | *buf++ = (val >> 8); | |
4656 | *buf++ = val; | |
4657 | upper_limit = 0x7fff; | |
4658 | lower_limit = - (offsetT) 0x8000; | |
4659 | break; | |
4660 | case 4: | |
4661 | *buf++ = (val >> 24); | |
4662 | *buf++ = (val >> 16); | |
4663 | *buf++ = (val >> 8); | |
4664 | *buf++ = val; | |
4665 | upper_limit = 0x7fffffff; | |
36759679 | 4666 | lower_limit = - (offsetT) 0x7fffffff - 1; /* Avoid constant overflow. */ |
252b5132 RH |
4667 | break; |
4668 | default: | |
4669 | BAD_CASE (fixP->fx_size); | |
4670 | } | |
4671 | ||
4672 | /* Fix up a negative reloc. */ | |
4673 | if (fixP->fx_addsy == NULL && fixP->fx_subsy != NULL) | |
4674 | { | |
4675 | fixP->fx_addsy = fixP->fx_subsy; | |
4676 | fixP->fx_subsy = NULL; | |
4677 | fixP->fx_tcbit = 1; | |
4678 | } | |
4679 | ||
4680 | /* For non-pc-relative values, it's conceivable we might get something | |
4681 | like "0xff" for a byte field. So extend the upper part of the range | |
4682 | to accept such numbers. We arbitrarily disallow "-0xff" or "0xff+0xff", | |
4683 | so that we can do any range checking at all. */ | |
4684 | if (! fixP->fx_pcrel && ! fixP->fx_signed) | |
4685 | upper_limit = upper_limit * 2 + 1; | |
4686 | ||
4687 | if ((addressT) val > upper_limit | |
4688 | && (val > 0 || val < lower_limit)) | |
4689 | as_bad_where (fixP->fx_file, fixP->fx_line, _("value out of range")); | |
4690 | ||
4691 | /* A one byte PC-relative reloc means a short branch. We can't use | |
4692 | a short branch with a value of 0 or -1, because those indicate | |
4693 | different opcodes (branches with longer offsets). fixup_segment | |
4694 | in write.c may have clobbered fx_pcrel, so we need to examine the | |
4695 | reloc type. */ | |
4696 | if ((fixP->fx_pcrel | |
4697 | #ifdef BFD_ASSEMBLER | |
4698 | || fixP->fx_r_type == BFD_RELOC_8_PCREL | |
4699 | #endif | |
4700 | ) | |
4701 | && fixP->fx_size == 1 | |
4702 | && (fixP->fx_addsy == NULL | |
4703 | || S_IS_DEFINED (fixP->fx_addsy)) | |
4704 | && (val == 0 || val == -1)) | |
4705 | as_bad_where (fixP->fx_file, fixP->fx_line, _("invalid byte branch offset")); | |
4706 | } | |
4707 | ||
252b5132 RH |
4708 | /* *fragP has been relaxed to its final size, and now needs to have |
4709 | the bytes inside it modified to conform to the new size There is UGLY | |
4710 | MAGIC here. .. | |
4711 | */ | |
4712 | static void | |
31302357 | 4713 | md_convert_frag_1 (fragS *fragP) |
252b5132 RH |
4714 | { |
4715 | long disp; | |
252b5132 RH |
4716 | fixS *fixP; |
4717 | ||
4718 | /* Address in object code of the displacement. */ | |
4719 | register int object_address = fragP->fr_fix + fragP->fr_address; | |
4720 | ||
4721 | /* Address in gas core of the place to store the displacement. */ | |
4722 | /* This convinces the native rs6000 compiler to generate the code we | |
92774660 | 4723 | want. */ |
252b5132 RH |
4724 | register char *buffer_address = fragP->fr_literal; |
4725 | buffer_address += fragP->fr_fix; | |
36759679 | 4726 | /* End ibm compiler workaround. */ |
252b5132 RH |
4727 | |
4728 | /* The displacement of the address, from current location. */ | |
4729 | disp = fragP->fr_symbol ? S_GET_VALUE (fragP->fr_symbol) : 0; | |
4730 | disp = (disp + fragP->fr_offset) - object_address; | |
4731 | ||
252b5132 RH |
4732 | switch (fragP->fr_subtype) |
4733 | { | |
151337e8 NC |
4734 | case TAB (BRANCHBWL, BYTE): |
4735 | case TAB (BRABSJUNC, BYTE): | |
4736 | case TAB (BRABSJCOND, BYTE): | |
4737 | case TAB (BRANCHBW, BYTE): | |
252b5132 RH |
4738 | know (issbyte (disp)); |
4739 | if (disp == 0) | |
b091f402 AM |
4740 | as_bad_where (fragP->fr_file, fragP->fr_line, |
4741 | _("short branch with zero offset: use :w")); | |
151337e8 | 4742 | fixP = fix_new (fragP, fragP->fr_fix - 1, 1, fragP->fr_symbol, |
5cbdaa77 | 4743 | fragP->fr_offset, 1, RELAX_RELOC_PC8); |
151337e8 | 4744 | fixP->fx_pcrel_adjust = -1; |
252b5132 | 4745 | break; |
151337e8 NC |
4746 | case TAB (BRANCHBWL, SHORT): |
4747 | case TAB (BRABSJUNC, SHORT): | |
4748 | case TAB (BRABSJCOND, SHORT): | |
4749 | case TAB (BRANCHBW, SHORT): | |
252b5132 | 4750 | fragP->fr_opcode[1] = 0x00; |
151337e8 | 4751 | fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol, fragP->fr_offset, |
5cbdaa77 | 4752 | 1, RELAX_RELOC_PC16); |
151337e8 NC |
4753 | fragP->fr_fix += 2; |
4754 | break; | |
4755 | case TAB (BRANCHBWL, LONG): | |
4756 | fragP->fr_opcode[1] = (char) 0xFF; | |
4757 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, fragP->fr_offset, | |
5cbdaa77 | 4758 | 1, RELAX_RELOC_PC32); |
151337e8 | 4759 | fragP->fr_fix += 4; |
252b5132 | 4760 | break; |
151337e8 NC |
4761 | case TAB (BRABSJUNC, LONG): |
4762 | if (fragP->fr_opcode[0] == 0x61) /* jbsr */ | |
252b5132 | 4763 | { |
36759679 | 4764 | if (flag_keep_pcrel) |
6b6e92f4 | 4765 | as_fatal (_("Tried to convert PC relative BSR to absolute JSR")); |
151337e8 | 4766 | fragP->fr_opcode[0] = 0x4E; |
36759679 | 4767 | fragP->fr_opcode[1] = (char) 0xB9; /* JSR with ABSL LONG operand. */ |
151337e8 | 4768 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, fragP->fr_offset, |
3ae647a0 | 4769 | 0, RELAX_RELOC_ABS32); |
151337e8 NC |
4770 | fragP->fr_fix += 4; |
4771 | } | |
4772 | else if (fragP->fr_opcode[0] == 0x60) /* jbra */ | |
4773 | { | |
36759679 | 4774 | if (flag_keep_pcrel) |
6b6e92f4 | 4775 | as_fatal (_("Tried to convert PC relative branch to absolute jump")); |
151337e8 | 4776 | fragP->fr_opcode[0] = 0x4E; |
36759679 | 4777 | fragP->fr_opcode[1] = (char) 0xF9; /* JMP with ABSL LONG operand. */ |
151337e8 | 4778 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, fragP->fr_offset, |
5cbdaa77 | 4779 | 0, RELAX_RELOC_ABS32); |
151337e8 | 4780 | fragP->fr_fix += 4; |
252b5132 RH |
4781 | } |
4782 | else | |
4783 | { | |
151337e8 NC |
4784 | /* This cannot happen, because jbsr and jbra are the only two |
4785 | unconditional branches. */ | |
4786 | abort (); | |
252b5132 RH |
4787 | } |
4788 | break; | |
151337e8 | 4789 | case TAB (BRABSJCOND, LONG): |
36759679 | 4790 | if (flag_keep_pcrel) |
6b6e92f4 | 4791 | as_fatal (_("Tried to convert PC relative conditional branch to absolute jump")); |
92774660 | 4792 | |
36759679 NC |
4793 | /* Only Bcc 68000 instructions can come here |
4794 | Change bcc into b!cc/jmp absl long. */ | |
4795 | fragP->fr_opcode[0] ^= 0x01; /* Invert bcc. */ | |
4796 | fragP->fr_opcode[1] = 0x06; /* Branch offset = 6. */ | |
252b5132 RH |
4797 | |
4798 | /* JF: these used to be fr_opcode[2,3], but they may be in a | |
67c1ffbe | 4799 | different frag, in which case referring to them is a no-no. |
92774660 | 4800 | Only fr_opcode[0,1] are guaranteed to work. */ |
252b5132 RH |
4801 | *buffer_address++ = 0x4e; /* put in jmp long (0x4ef9) */ |
4802 | *buffer_address++ = (char) 0xf9; | |
36759679 | 4803 | fragP->fr_fix += 2; /* Account for jmp instruction. */ |
252b5132 | 4804 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, |
5cbdaa77 | 4805 | fragP->fr_offset, 0, RELAX_RELOC_ABS32); |
151337e8 NC |
4806 | fragP->fr_fix += 4; |
4807 | break; | |
4808 | case TAB (FBRANCH, SHORT): | |
4809 | know ((fragP->fr_opcode[1] & 0x40) == 0); | |
4810 | fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol, fragP->fr_offset, | |
5cbdaa77 | 4811 | 1, RELAX_RELOC_PC16); |
151337e8 NC |
4812 | fragP->fr_fix += 2; |
4813 | break; | |
4814 | case TAB (FBRANCH, LONG): | |
36759679 | 4815 | fragP->fr_opcode[1] |= 0x40; /* Turn on LONG bit. */ |
151337e8 | 4816 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, fragP->fr_offset, |
5cbdaa77 | 4817 | 1, RELAX_RELOC_PC32); |
252b5132 | 4818 | fragP->fr_fix += 4; |
252b5132 | 4819 | break; |
151337e8 NC |
4820 | case TAB (DBCCLBR, SHORT): |
4821 | case TAB (DBCCABSJ, SHORT): | |
4822 | fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol, fragP->fr_offset, | |
5cbdaa77 | 4823 | 1, RELAX_RELOC_PC16); |
151337e8 NC |
4824 | fragP->fr_fix += 2; |
4825 | break; | |
4826 | case TAB (DBCCLBR, LONG): | |
36759679 NC |
4827 | /* Only DBcc instructions can come here. |
4828 | Change dbcc into dbcc/bral. | |
4829 | JF: these used to be fr_opcode[2-7], but that's wrong. */ | |
4830 | if (flag_keep_pcrel) | |
6b6e92f4 | 4831 | as_fatal (_("Tried to convert DBcc to absolute jump")); |
28e7409f | 4832 | |
36759679 | 4833 | *buffer_address++ = 0x00; /* Branch offset = 4. */ |
252b5132 | 4834 | *buffer_address++ = 0x04; |
36759679 | 4835 | *buffer_address++ = 0x60; /* Put in bra pc+6. */ |
252b5132 | 4836 | *buffer_address++ = 0x06; |
151337e8 NC |
4837 | *buffer_address++ = 0x60; /* Put in bral (0x60ff). */ |
4838 | *buffer_address++ = (char) 0xff; | |
252b5132 | 4839 | |
36759679 | 4840 | fragP->fr_fix += 6; /* Account for bra/jmp instructions. */ |
151337e8 | 4841 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, fragP->fr_offset, 1, |
5cbdaa77 | 4842 | RELAX_RELOC_PC32); |
252b5132 | 4843 | fragP->fr_fix += 4; |
252b5132 | 4844 | break; |
151337e8 | 4845 | case TAB (DBCCABSJ, LONG): |
36759679 NC |
4846 | /* Only DBcc instructions can come here. |
4847 | Change dbcc into dbcc/jmp. | |
4848 | JF: these used to be fr_opcode[2-7], but that's wrong. */ | |
4849 | if (flag_keep_pcrel) | |
6b6e92f4 | 4850 | as_fatal (_("Tried to convert PC relative conditional branch to absolute jump")); |
151337e8 | 4851 | |
36759679 | 4852 | *buffer_address++ = 0x00; /* Branch offset = 4. */ |
151337e8 | 4853 | *buffer_address++ = 0x04; |
36759679 | 4854 | *buffer_address++ = 0x60; /* Put in bra pc + 6. */ |
151337e8 | 4855 | *buffer_address++ = 0x06; |
36759679 | 4856 | *buffer_address++ = 0x4e; /* Put in jmp long (0x4ef9). */ |
151337e8 NC |
4857 | *buffer_address++ = (char) 0xf9; |
4858 | ||
36759679 | 4859 | fragP->fr_fix += 6; /* Account for bra/jmp instructions. */ |
151337e8 | 4860 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, fragP->fr_offset, 0, |
5cbdaa77 | 4861 | RELAX_RELOC_ABS32); |
252b5132 | 4862 | fragP->fr_fix += 4; |
252b5132 | 4863 | break; |
151337e8 | 4864 | case TAB (PCREL1632, SHORT): |
252b5132 RH |
4865 | fragP->fr_opcode[1] &= ~0x3F; |
4866 | fragP->fr_opcode[1] |= 0x3A; /* 072 - mode 7.2 */ | |
151337e8 | 4867 | fix_new (fragP, (int) (fragP->fr_fix), 2, fragP->fr_symbol, |
5cbdaa77 | 4868 | fragP->fr_offset, 1, RELAX_RELOC_PC16); |
151337e8 | 4869 | fragP->fr_fix += 2; |
252b5132 | 4870 | break; |
151337e8 | 4871 | case TAB (PCREL1632, LONG): |
252b5132 RH |
4872 | /* Already set to mode 7.3; this indicates: PC indirect with |
4873 | suppressed index, 32-bit displacement. */ | |
4874 | *buffer_address++ = 0x01; | |
4875 | *buffer_address++ = 0x70; | |
4876 | fragP->fr_fix += 2; | |
151337e8 | 4877 | fixP = fix_new (fragP, (int) (fragP->fr_fix), 4, fragP->fr_symbol, |
5cbdaa77 | 4878 | fragP->fr_offset, 1, RELAX_RELOC_PC32); |
151337e8 NC |
4879 | fixP->fx_pcrel_adjust = 2; |
4880 | fragP->fr_fix += 4; | |
252b5132 | 4881 | break; |
252b5132 | 4882 | case TAB (PCINDEX, BYTE): |
252b5132 RH |
4883 | assert (fragP->fr_fix >= 2); |
4884 | buffer_address[-2] &= ~1; | |
151337e8 | 4885 | fixP = fix_new (fragP, fragP->fr_fix - 1, 1, fragP->fr_symbol, |
5cbdaa77 | 4886 | fragP->fr_offset, 1, RELAX_RELOC_PC8); |
151337e8 | 4887 | fixP->fx_pcrel_adjust = 1; |
252b5132 RH |
4888 | break; |
4889 | case TAB (PCINDEX, SHORT): | |
252b5132 RH |
4890 | assert (fragP->fr_fix >= 2); |
4891 | buffer_address[-2] |= 0x1; | |
4892 | buffer_address[-1] = 0x20; | |
4893 | fixP = fix_new (fragP, (int) (fragP->fr_fix), 2, fragP->fr_symbol, | |
5cbdaa77 | 4894 | fragP->fr_offset, 1, RELAX_RELOC_PC16); |
252b5132 | 4895 | fixP->fx_pcrel_adjust = 2; |
151337e8 | 4896 | fragP->fr_fix += 2; |
252b5132 RH |
4897 | break; |
4898 | case TAB (PCINDEX, LONG): | |
252b5132 RH |
4899 | assert (fragP->fr_fix >= 2); |
4900 | buffer_address[-2] |= 0x1; | |
4901 | buffer_address[-1] = 0x30; | |
151337e8 | 4902 | fixP = fix_new (fragP, (int) (fragP->fr_fix), 4, fragP->fr_symbol, |
5cbdaa77 | 4903 | fragP->fr_offset, 1, RELAX_RELOC_PC32); |
151337e8 NC |
4904 | fixP->fx_pcrel_adjust = 2; |
4905 | fragP->fr_fix += 4; | |
4906 | break; | |
4907 | case TAB (ABSTOPCREL, SHORT): | |
4908 | fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol, fragP->fr_offset, | |
5cbdaa77 | 4909 | 1, RELAX_RELOC_PC16); |
151337e8 NC |
4910 | fragP->fr_fix += 2; |
4911 | break; | |
4912 | case TAB (ABSTOPCREL, LONG): | |
36759679 | 4913 | if (flag_keep_pcrel) |
6b6e92f4 | 4914 | as_fatal (_("Tried to convert PC relative conditional branch to absolute jump")); |
151337e8 | 4915 | /* The thing to do here is force it to ABSOLUTE LONG, since |
36759679 | 4916 | ABSTOPCREL is really trying to shorten an ABSOLUTE address anyway. */ |
151337e8 NC |
4917 | if ((fragP->fr_opcode[1] & 0x3F) != 0x3A) |
4918 | abort (); | |
4919 | fragP->fr_opcode[1] &= ~0x3F; | |
4920 | fragP->fr_opcode[1] |= 0x39; /* Mode 7.1 */ | |
4921 | fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, fragP->fr_offset, | |
5cbdaa77 | 4922 | 0, RELAX_RELOC_ABS32); |
151337e8 | 4923 | fragP->fr_fix += 4; |
252b5132 | 4924 | break; |
252b5132 RH |
4925 | } |
4926 | } | |
4927 | ||
4928 | #ifndef BFD_ASSEMBLER | |
4929 | ||
4930 | void | |
31302357 AS |
4931 | md_convert_frag (object_headers *headers ATTRIBUTE_UNUSED, |
4932 | segT sec ATTRIBUTE_UNUSED, | |
4933 | fragS *fragP) | |
252b5132 RH |
4934 | { |
4935 | md_convert_frag_1 (fragP); | |
4936 | } | |
4937 | ||
4938 | #else | |
4939 | ||
4940 | void | |
31302357 AS |
4941 | md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, |
4942 | segT sec ATTRIBUTE_UNUSED, | |
4943 | fragS *fragP) | |
252b5132 RH |
4944 | { |
4945 | md_convert_frag_1 (fragP); | |
4946 | } | |
4947 | #endif | |
4948 | ||
4949 | /* Force truly undefined symbols to their maximum size, and generally set up | |
4950 | the frag list to be relaxed | |
4951 | */ | |
4952 | int | |
31302357 | 4953 | md_estimate_size_before_relax (fragS *fragP, segT segment) |
252b5132 | 4954 | { |
151337e8 | 4955 | /* Handle SZ_UNDEF first, it can be changed to BYTE or SHORT. */ |
252b5132 RH |
4956 | switch (fragP->fr_subtype) |
4957 | { | |
151337e8 NC |
4958 | case TAB (BRANCHBWL, SZ_UNDEF): |
4959 | case TAB (BRABSJUNC, SZ_UNDEF): | |
151337e8 | 4960 | case TAB (BRABSJCOND, SZ_UNDEF): |
252b5132 | 4961 | { |
151337e8 NC |
4962 | if (S_GET_SEGMENT (fragP->fr_symbol) == segment |
4963 | && relaxable_symbol (fragP->fr_symbol)) | |
252b5132 | 4964 | { |
151337e8 NC |
4965 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), BYTE); |
4966 | } | |
4967 | else if (flag_short_refs) | |
4968 | { | |
4969 | /* Symbol is undefined and we want short ref. */ | |
4970 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), SHORT); | |
252b5132 RH |
4971 | } |
4972 | else | |
4973 | { | |
151337e8 NC |
4974 | /* Symbol is still undefined. Make it LONG. */ |
4975 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), LONG); | |
252b5132 RH |
4976 | } |
4977 | break; | |
151337e8 | 4978 | } |
252b5132 | 4979 | |
151337e8 | 4980 | case TAB (BRANCHBW, SZ_UNDEF): |
252b5132 | 4981 | { |
151337e8 NC |
4982 | if (S_GET_SEGMENT (fragP->fr_symbol) == segment |
4983 | && relaxable_symbol (fragP->fr_symbol)) | |
252b5132 | 4984 | { |
151337e8 | 4985 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), BYTE); |
252b5132 RH |
4986 | } |
4987 | else | |
4988 | { | |
151337e8 NC |
4989 | /* Symbol is undefined and we don't have long branches. */ |
4990 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), SHORT); | |
252b5132 RH |
4991 | } |
4992 | break; | |
151337e8 | 4993 | } |
252b5132 | 4994 | |
151337e8 | 4995 | case TAB (FBRANCH, SZ_UNDEF): |
151337e8 NC |
4996 | case TAB (DBCCLBR, SZ_UNDEF): |
4997 | case TAB (DBCCABSJ, SZ_UNDEF): | |
5c65dbc1 | 4998 | case TAB (PCREL1632, SZ_UNDEF): |
252b5132 | 4999 | { |
8ec6253e NC |
5000 | if ((S_GET_SEGMENT (fragP->fr_symbol) == segment |
5001 | && relaxable_symbol (fragP->fr_symbol)) | |
151337e8 | 5002 | || flag_short_refs) |
252b5132 | 5003 | { |
151337e8 | 5004 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), SHORT); |
252b5132 RH |
5005 | } |
5006 | else | |
5007 | { | |
151337e8 | 5008 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), LONG); |
252b5132 RH |
5009 | } |
5010 | break; | |
151337e8 | 5011 | } |
81d4177b | 5012 | |
252b5132 RH |
5013 | case TAB (PCINDEX, SZ_UNDEF): |
5014 | if ((S_GET_SEGMENT (fragP->fr_symbol) == segment | |
151337e8 | 5015 | && relaxable_symbol (fragP->fr_symbol))) |
252b5132 RH |
5016 | { |
5017 | fragP->fr_subtype = TAB (PCINDEX, BYTE); | |
5018 | } | |
5019 | else | |
5020 | { | |
5021 | fragP->fr_subtype = TAB (PCINDEX, LONG); | |
252b5132 RH |
5022 | } |
5023 | break; | |
5024 | ||
151337e8 NC |
5025 | case TAB (ABSTOPCREL, SZ_UNDEF): |
5026 | { | |
5027 | if ((S_GET_SEGMENT (fragP->fr_symbol) == segment | |
5028 | && relaxable_symbol (fragP->fr_symbol))) | |
5029 | { | |
5030 | fragP->fr_subtype = TAB (ABSTOPCREL, SHORT); | |
151337e8 NC |
5031 | } |
5032 | else | |
5033 | { | |
5034 | fragP->fr_subtype = TAB (ABSTOPCREL, LONG); | |
151337e8 NC |
5035 | } |
5036 | break; | |
5037 | } | |
5038 | ||
252b5132 RH |
5039 | default: |
5040 | break; | |
5041 | } | |
5042 | ||
151337e8 | 5043 | /* Now that SZ_UNDEF are taken care of, check others. */ |
252b5132 RH |
5044 | switch (fragP->fr_subtype) |
5045 | { | |
151337e8 NC |
5046 | case TAB (BRANCHBWL, BYTE): |
5047 | case TAB (BRABSJUNC, BYTE): | |
5048 | case TAB (BRABSJCOND, BYTE): | |
5049 | case TAB (BRANCHBW, BYTE): | |
252b5132 | 5050 | /* We can't do a short jump to the next instruction, so in that |
ac62c346 AM |
5051 | case we force word mode. If the symbol is at the start of a |
5052 | frag, and it is the next frag with any data in it (usually | |
5053 | this is just the next frag, but assembler listings may | |
5054 | introduce empty frags), we must use word mode. */ | |
5055 | if (fragP->fr_symbol) | |
252b5132 | 5056 | { |
ac62c346 | 5057 | fragS *sym_frag; |
252b5132 | 5058 | |
ac62c346 AM |
5059 | sym_frag = symbol_get_frag (fragP->fr_symbol); |
5060 | if (S_GET_VALUE (fragP->fr_symbol) == sym_frag->fr_address) | |
252b5132 | 5061 | { |
ac62c346 AM |
5062 | fragS *l; |
5063 | ||
23b7f870 | 5064 | for (l = fragP->fr_next; l && l != sym_frag; l = l->fr_next) |
ac62c346 AM |
5065 | if (l->fr_fix != 0) |
5066 | break; | |
5067 | if (l == sym_frag) | |
5068 | fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), SHORT); | |
252b5132 RH |
5069 | } |
5070 | } | |
5071 | break; | |
5072 | default: | |
5073 | break; | |
5074 | } | |
ac62c346 | 5075 | return md_relax_table[fragP->fr_subtype].rlx_length; |
252b5132 RH |
5076 | } |
5077 | ||
5078 | #if defined(OBJ_AOUT) | defined(OBJ_BOUT) | |
5079 | /* the bit-field entries in the relocation_info struct plays hell | |
5080 | with the byte-order problems of cross-assembly. So as a hack, | |
5081 | I added this mach. dependent ri twiddler. Ugly, but it gets | |
36759679 | 5082 | you there. -KWK */ |
252b5132 RH |
5083 | /* on m68k: first 4 bytes are normal unsigned long, next three bytes |
5084 | are symbolnum, most sig. byte first. Last byte is broken up with | |
5085 | bit 7 as pcrel, bits 6 & 5 as length, bit 4 as pcrel, and the lower | |
5086 | nibble as nuthin. (on Sun 3 at least) */ | |
5087 | /* Translate the internal relocation information into target-specific | |
92774660 | 5088 | format. */ |
252b5132 RH |
5089 | #ifdef comment |
5090 | void | |
31302357 | 5091 | md_ri_to_chars (char *the_bytes, struct reloc_info_generic *ri) |
252b5132 | 5092 | { |
36759679 | 5093 | /* This is easy. */ |
252b5132 | 5094 | md_number_to_chars (the_bytes, ri->r_address, 4); |
36759679 | 5095 | /* Now the fun stuff. */ |
252b5132 | 5096 | the_bytes[4] = (ri->r_symbolnum >> 16) & 0x0ff; |
36759679 NC |
5097 | the_bytes[5] = (ri->r_symbolnum >> 8) & 0x0ff; |
5098 | the_bytes[6] = ri->r_symbolnum & 0x0ff; | |
31302357 AS |
5099 | the_bytes[7] = (((ri->r_pcrel << 7) & 0x80) |
5100 | | ((ri->r_length << 5) & 0x60) | |
5101 | | ((ri->r_extern << 4) & 0x10)); | |
252b5132 RH |
5102 | } |
5103 | ||
36759679 | 5104 | #endif |
252b5132 RH |
5105 | |
5106 | #ifndef BFD_ASSEMBLER | |
5107 | void | |
31302357 AS |
5108 | tc_aout_fix_to_chars (char *where, fixS *fixP, |
5109 | relax_addressT segment_address_in_file) | |
252b5132 RH |
5110 | { |
5111 | /* | |
5112 | * In: length of relocation (or of address) in chars: 1, 2 or 4. | |
5113 | * Out: GNU LD relocation length code: 0, 1, or 2. | |
5114 | */ | |
5115 | ||
5a38dc70 | 5116 | static const unsigned char nbytes_r_length[] = {42, 0, 1, 42, 2}; |
252b5132 RH |
5117 | long r_symbolnum; |
5118 | ||
5119 | know (fixP->fx_addsy != NULL); | |
5120 | ||
5121 | md_number_to_chars (where, | |
31302357 AS |
5122 | (fixP->fx_frag->fr_address |
5123 | + fixP->fx_where - segment_address_in_file), 4); | |
252b5132 RH |
5124 | |
5125 | r_symbolnum = (S_IS_DEFINED (fixP->fx_addsy) | |
5126 | ? S_GET_TYPE (fixP->fx_addsy) | |
5127 | : fixP->fx_addsy->sy_number); | |
5128 | ||
5129 | where[4] = (r_symbolnum >> 16) & 0x0ff; | |
5130 | where[5] = (r_symbolnum >> 8) & 0x0ff; | |
5131 | where[6] = r_symbolnum & 0x0ff; | |
31302357 AS |
5132 | where[7] = (((fixP->fx_pcrel << 7) & 0x80) |
5133 | | ((nbytes_r_length[fixP->fx_size] << 5) & 0x60) | |
5134 | | ((!S_IS_DEFINED (fixP->fx_addsy) << 4) & 0x10)); | |
252b5132 RH |
5135 | } |
5136 | #endif | |
5137 | ||
5138 | #endif /* OBJ_AOUT or OBJ_BOUT */ | |
5139 | ||
5140 | #ifndef WORKING_DOT_WORD | |
2b4f075a HPN |
5141 | int md_short_jump_size = 4; |
5142 | int md_long_jump_size = 6; | |
252b5132 RH |
5143 | |
5144 | void | |
31302357 AS |
5145 | md_create_short_jump (char *ptr, addressT from_addr, addressT to_addr, |
5146 | fragS *frag ATTRIBUTE_UNUSED, | |
5147 | symbolS *to_symbol ATTRIBUTE_UNUSED) | |
252b5132 RH |
5148 | { |
5149 | valueT offset; | |
5150 | ||
5151 | offset = to_addr - (from_addr + 2); | |
5152 | ||
5153 | md_number_to_chars (ptr, (valueT) 0x6000, 2); | |
5154 | md_number_to_chars (ptr + 2, (valueT) offset, 2); | |
5155 | } | |
5156 | ||
5157 | void | |
31302357 AS |
5158 | md_create_long_jump (char *ptr, addressT from_addr, addressT to_addr, |
5159 | fragS *frag, symbolS *to_symbol) | |
252b5132 RH |
5160 | { |
5161 | valueT offset; | |
5162 | ||
6b6e92f4 | 5163 | if (!HAVE_LONG_BRANCH (current_architecture)) |
252b5132 | 5164 | { |
36759679 | 5165 | if (flag_keep_pcrel) |
6b6e92f4 | 5166 | as_fatal (_("Tried to convert PC relative branch to absolute jump")); |
252b5132 RH |
5167 | offset = to_addr - S_GET_VALUE (to_symbol); |
5168 | md_number_to_chars (ptr, (valueT) 0x4EF9, 2); | |
5169 | md_number_to_chars (ptr + 2, (valueT) offset, 4); | |
5170 | fix_new (frag, (ptr + 2) - frag->fr_literal, 4, to_symbol, (offsetT) 0, | |
5171 | 0, NO_RELOC); | |
5172 | } | |
5173 | else | |
5174 | { | |
5175 | offset = to_addr - (from_addr + 2); | |
5176 | md_number_to_chars (ptr, (valueT) 0x60ff, 2); | |
5177 | md_number_to_chars (ptr + 2, (valueT) offset, 4); | |
5178 | } | |
5179 | } | |
5180 | ||
5181 | #endif | |
5182 | ||
5183 | /* Different values of OK tell what its OK to return. Things that | |
5184 | aren't OK are an error (what a shock, no?) | |
5185 | ||
5186 | 0: Everything is OK | |
3e602632 NC |
5187 | 10: Absolute 1:8 only |
5188 | 20: Absolute 0:7 only | |
5189 | 30: absolute 0:15 only | |
5190 | 40: Absolute 0:31 only | |
5191 | 50: absolute 0:127 only | |
252b5132 | 5192 | 55: absolute -64:63 only |
3e602632 NC |
5193 | 60: absolute -128:127 only |
5194 | 70: absolute 0:4095 only | |
5195 | 80: absolute -1, 1:7 only | |
5196 | 90: No bignums. */ | |
252b5132 RH |
5197 | |
5198 | static int | |
31302357 | 5199 | get_num (struct m68k_exp *exp, int ok) |
252b5132 RH |
5200 | { |
5201 | if (exp->exp.X_op == O_absent) | |
5202 | { | |
36759679 | 5203 | /* Do the same thing the VAX asm does. */ |
252b5132 RH |
5204 | op (exp) = O_constant; |
5205 | adds (exp) = 0; | |
5206 | subs (exp) = 0; | |
5207 | offs (exp) = 0; | |
5208 | if (ok == 10) | |
5209 | { | |
5210 | as_warn (_("expression out of range: defaulting to 1")); | |
5211 | offs (exp) = 1; | |
5212 | } | |
5213 | } | |
5214 | else if (exp->exp.X_op == O_constant) | |
5215 | { | |
5216 | switch (ok) | |
5217 | { | |
5218 | case 10: | |
bd17c2c3 | 5219 | if ((valueT) TRUNC (offs (exp)) - 1 > 7) |
252b5132 RH |
5220 | { |
5221 | as_warn (_("expression out of range: defaulting to 1")); | |
5222 | offs (exp) = 1; | |
5223 | } | |
5224 | break; | |
5225 | case 20: | |
bd17c2c3 | 5226 | if ((valueT) TRUNC (offs (exp)) > 7) |
252b5132 RH |
5227 | goto outrange; |
5228 | break; | |
5229 | case 30: | |
bd17c2c3 | 5230 | if ((valueT) TRUNC (offs (exp)) > 15) |
252b5132 RH |
5231 | goto outrange; |
5232 | break; | |
5233 | case 40: | |
bd17c2c3 | 5234 | if ((valueT) TRUNC (offs (exp)) > 32) |
252b5132 RH |
5235 | goto outrange; |
5236 | break; | |
5237 | case 50: | |
bd17c2c3 | 5238 | if ((valueT) TRUNC (offs (exp)) > 127) |
252b5132 RH |
5239 | goto outrange; |
5240 | break; | |
5241 | case 55: | |
bd17c2c3 | 5242 | if ((valueT) SEXT (offs (exp)) + 64 > 127) |
252b5132 RH |
5243 | goto outrange; |
5244 | break; | |
5245 | case 60: | |
bd17c2c3 | 5246 | if ((valueT) SEXT (offs (exp)) + 128 > 255) |
252b5132 RH |
5247 | goto outrange; |
5248 | break; | |
5249 | case 70: | |
bd17c2c3 | 5250 | if ((valueT) TRUNC (offs (exp)) > 4095) |
252b5132 RH |
5251 | { |
5252 | outrange: | |
5253 | as_warn (_("expression out of range: defaulting to 0")); | |
5254 | offs (exp) = 0; | |
5255 | } | |
5256 | break; | |
3e602632 | 5257 | case 80: |
bd17c2c3 AM |
5258 | if ((valueT) TRUNC (offs (exp)) != 0xffffffff |
5259 | && (valueT) TRUNC (offs (exp)) - 1 > 6) | |
3e602632 NC |
5260 | { |
5261 | as_warn (_("expression out of range: defaulting to 1")); | |
5262 | offs (exp) = 1; | |
5263 | } | |
5264 | break; | |
252b5132 RH |
5265 | default: |
5266 | break; | |
5267 | } | |
5268 | } | |
5269 | else if (exp->exp.X_op == O_big) | |
5270 | { | |
36759679 | 5271 | if (offs (exp) <= 0 /* flonum. */ |
3e602632 | 5272 | && (ok == 90 /* no bignums */ |
36759679 | 5273 | || (ok > 10 /* Small-int ranges including 0 ok. */ |
252b5132 RH |
5274 | /* If we have a flonum zero, a zero integer should |
5275 | do as well (e.g., in moveq). */ | |
5276 | && generic_floating_point_number.exponent == 0 | |
5277 | && generic_floating_point_number.low[0] == 0))) | |
5278 | { | |
36759679 | 5279 | /* HACK! Turn it into a long. */ |
252b5132 RH |
5280 | LITTLENUM_TYPE words[6]; |
5281 | ||
36759679 | 5282 | gen_to_words (words, 2, 8L); /* These numbers are magic! */ |
252b5132 RH |
5283 | op (exp) = O_constant; |
5284 | adds (exp) = 0; | |
5285 | subs (exp) = 0; | |
5286 | offs (exp) = words[1] | (words[0] << 16); | |
5287 | } | |
5288 | else if (ok != 0) | |
5289 | { | |
5290 | op (exp) = O_constant; | |
5291 | adds (exp) = 0; | |
5292 | subs (exp) = 0; | |
5293 | offs (exp) = (ok == 10) ? 1 : 0; | |
5294 | as_warn (_("Can't deal with expression; defaulting to %ld"), | |
045b540e | 5295 | (long) offs (exp)); |
252b5132 RH |
5296 | } |
5297 | } | |
5298 | else | |
5299 | { | |
3e602632 | 5300 | if (ok >= 10 && ok <= 80) |
252b5132 RH |
5301 | { |
5302 | op (exp) = O_constant; | |
5303 | adds (exp) = 0; | |
5304 | subs (exp) = 0; | |
5305 | offs (exp) = (ok == 10) ? 1 : 0; | |
5306 | as_warn (_("Can't deal with expression; defaulting to %ld"), | |
045b540e | 5307 | (long) offs (exp)); |
252b5132 RH |
5308 | } |
5309 | } | |
5310 | ||
5311 | if (exp->size != SIZE_UNSPEC) | |
5312 | { | |
5313 | switch (exp->size) | |
5314 | { | |
5315 | case SIZE_UNSPEC: | |
5316 | case SIZE_LONG: | |
5317 | break; | |
5318 | case SIZE_BYTE: | |
5319 | if (!isbyte (offs (exp))) | |
5320 | as_warn (_("expression doesn't fit in BYTE")); | |
5321 | break; | |
5322 | case SIZE_WORD: | |
5323 | if (!isword (offs (exp))) | |
5324 | as_warn (_("expression doesn't fit in WORD")); | |
5325 | break; | |
5326 | } | |
5327 | } | |
5328 | ||
5329 | return offs (exp); | |
5330 | } | |
5331 | ||
5332 | /* These are the back-ends for the various machine dependent pseudo-ops. */ | |
5333 | ||
5334 | static void | |
31302357 | 5335 | s_data1 (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
5336 | { |
5337 | subseg_set (data_section, 1); | |
5338 | demand_empty_rest_of_line (); | |
5339 | } | |
5340 | ||
5341 | static void | |
31302357 | 5342 | s_data2 (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
5343 | { |
5344 | subseg_set (data_section, 2); | |
5345 | demand_empty_rest_of_line (); | |
5346 | } | |
5347 | ||
5348 | static void | |
31302357 | 5349 | s_bss (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
5350 | { |
5351 | /* We don't support putting frags in the BSS segment, we fake it | |
5352 | by marking in_bss, then looking at s_skip for clues. */ | |
5353 | ||
5354 | subseg_set (bss_section, 0); | |
5355 | demand_empty_rest_of_line (); | |
5356 | } | |
5357 | ||
5358 | static void | |
31302357 | 5359 | s_even (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
5360 | { |
5361 | register int temp; | |
5362 | register long temp_fill; | |
5363 | ||
5364 | temp = 1; /* JF should be 2? */ | |
5365 | temp_fill = get_absolute_expression (); | |
92774660 | 5366 | if (!need_pass_2) /* Never make frag if expect extra pass. */ |
252b5132 RH |
5367 | frag_align (temp, (int) temp_fill, 0); |
5368 | demand_empty_rest_of_line (); | |
5369 | record_alignment (now_seg, temp); | |
5370 | } | |
5371 | ||
5372 | static void | |
31302357 | 5373 | s_proc (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
5374 | { |
5375 | demand_empty_rest_of_line (); | |
5376 | } | |
5377 | \f | |
5378 | /* Pseudo-ops handled for MRI compatibility. */ | |
5379 | ||
5380 | /* This function returns non-zero if the argument is a conditional | |
5381 | pseudo-op. This is called when checking whether a pending | |
5382 | alignment is needed. */ | |
5383 | ||
5384 | int | |
31302357 | 5385 | m68k_conditional_pseudoop (pseudo_typeS *pop) |
252b5132 RH |
5386 | { |
5387 | return (pop->poc_handler == s_mri_if | |
5388 | || pop->poc_handler == s_mri_else); | |
5389 | } | |
5390 | ||
5391 | /* Handle an MRI style chip specification. */ | |
5392 | ||
5393 | static void | |
31302357 | 5394 | mri_chip (void) |
252b5132 RH |
5395 | { |
5396 | char *s; | |
5397 | char c; | |
5398 | int i; | |
5399 | ||
5400 | s = input_line_pointer; | |
5401 | /* We can't use get_symbol_end since the processor names are not proper | |
5402 | symbols. */ | |
5403 | while (is_part_of_name (c = *input_line_pointer++)) | |
5404 | ; | |
5405 | *--input_line_pointer = 0; | |
5406 | for (i = 0; i < n_archs; i++) | |
5407 | if (strcasecmp (s, archs[i].name) == 0) | |
5408 | break; | |
5409 | if (i >= n_archs) | |
5410 | { | |
5411 | as_bad (_("%s: unrecognized processor name"), s); | |
5412 | *input_line_pointer = c; | |
5413 | ignore_rest_of_line (); | |
5414 | return; | |
5415 | } | |
5416 | *input_line_pointer = c; | |
5417 | ||
5418 | if (*input_line_pointer == '/') | |
5419 | current_architecture = 0; | |
5420 | else | |
5421 | current_architecture &= m68881 | m68851; | |
5422 | current_architecture |= archs[i].arch; | |
990ae22a | 5423 | current_chip = archs[i].chip; |
252b5132 RH |
5424 | |
5425 | while (*input_line_pointer == '/') | |
5426 | { | |
5427 | ++input_line_pointer; | |
5428 | s = input_line_pointer; | |
5429 | /* We can't use get_symbol_end since the processor names are not | |
5430 | proper symbols. */ | |
5431 | while (is_part_of_name (c = *input_line_pointer++)) | |
5432 | ; | |
5433 | *--input_line_pointer = 0; | |
5434 | if (strcmp (s, "68881") == 0) | |
5435 | current_architecture |= m68881; | |
5436 | else if (strcmp (s, "68851") == 0) | |
5437 | current_architecture |= m68851; | |
5438 | *input_line_pointer = c; | |
5439 | } | |
5440 | ||
5441 | /* Update info about available control registers. */ | |
5442 | select_control_regs (); | |
5443 | } | |
5444 | ||
5445 | /* The MRI CHIP pseudo-op. */ | |
5446 | ||
5447 | static void | |
31302357 | 5448 | s_chip (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
5449 | { |
5450 | char *stop = NULL; | |
5451 | char stopc; | |
5452 | ||
5453 | if (flag_mri) | |
5454 | stop = mri_comment_field (&stopc); | |
5455 | mri_chip (); | |
5456 | if (flag_mri) | |
5457 | mri_comment_end (stop, stopc); | |
5458 | demand_empty_rest_of_line (); | |
5459 | } | |
5460 | ||
5461 | /* The MRI FOPT pseudo-op. */ | |
5462 | ||
5463 | static void | |
31302357 | 5464 | s_fopt (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
5465 | { |
5466 | SKIP_WHITESPACE (); | |
5467 | ||
5468 | if (strncasecmp (input_line_pointer, "ID=", 3) == 0) | |
5469 | { | |
5470 | int temp; | |
5471 | ||
5472 | input_line_pointer += 3; | |
5473 | temp = get_absolute_expression (); | |
5474 | if (temp < 0 || temp > 7) | |
5475 | as_bad (_("bad coprocessor id")); | |
5476 | else | |
5477 | m68k_float_copnum = COP0 + temp; | |
5478 | } | |
5479 | else | |
5480 | { | |
5481 | as_bad (_("unrecognized fopt option")); | |
5482 | ignore_rest_of_line (); | |
5483 | return; | |
5484 | } | |
5485 | ||
5486 | demand_empty_rest_of_line (); | |
5487 | } | |
5488 | ||
5489 | /* The structure used to handle the MRI OPT pseudo-op. */ | |
5490 | ||
5491 | struct opt_action | |
5492 | { | |
5493 | /* The name of the option. */ | |
5494 | const char *name; | |
5495 | ||
5496 | /* If this is not NULL, just call this function. The first argument | |
5497 | is the ARG field of this structure, the second argument is | |
5498 | whether the option was negated. */ | |
31302357 | 5499 | void (*pfn) (int arg, int on); |
252b5132 RH |
5500 | |
5501 | /* If this is not NULL, and the PFN field is NULL, set the variable | |
5502 | this points to. Set it to the ARG field if the option was not | |
5503 | negated, and the NOTARG field otherwise. */ | |
5504 | int *pvar; | |
5505 | ||
5506 | /* The value to pass to PFN or to assign to *PVAR. */ | |
5507 | int arg; | |
5508 | ||
5509 | /* The value to assign to *PVAR if the option is negated. If PFN is | |
5510 | NULL, and PVAR is not NULL, and ARG and NOTARG are the same, then | |
5511 | the option may not be negated. */ | |
5512 | int notarg; | |
5513 | }; | |
5514 | ||
5515 | /* The table used to handle the MRI OPT pseudo-op. */ | |
5516 | ||
31302357 AS |
5517 | static void skip_to_comma (int, int); |
5518 | static void opt_nest (int, int); | |
5519 | static void opt_chip (int, int); | |
5520 | static void opt_list (int, int); | |
5521 | static void opt_list_symbols (int, int); | |
252b5132 RH |
5522 | |
5523 | static const struct opt_action opt_table[] = | |
5524 | { | |
5525 | { "abspcadd", 0, &m68k_abspcadd, 1, 0 }, | |
5526 | ||
5527 | /* We do relaxing, so there is little use for these options. */ | |
5528 | { "b", 0, 0, 0, 0 }, | |
5529 | { "brs", 0, 0, 0, 0 }, | |
5530 | { "brb", 0, 0, 0, 0 }, | |
5531 | { "brl", 0, 0, 0, 0 }, | |
5532 | { "brw", 0, 0, 0, 0 }, | |
5533 | ||
5534 | { "c", 0, 0, 0, 0 }, | |
5535 | { "cex", 0, 0, 0, 0 }, | |
5536 | { "case", 0, &symbols_case_sensitive, 1, 0 }, | |
5537 | { "cl", 0, 0, 0, 0 }, | |
5538 | { "cre", 0, 0, 0, 0 }, | |
5539 | { "d", 0, &flag_keep_locals, 1, 0 }, | |
5540 | { "e", 0, 0, 0, 0 }, | |
5541 | { "f", 0, &flag_short_refs, 1, 0 }, | |
5542 | { "frs", 0, &flag_short_refs, 1, 0 }, | |
5543 | { "frl", 0, &flag_short_refs, 0, 1 }, | |
5544 | { "g", 0, 0, 0, 0 }, | |
5545 | { "i", 0, 0, 0, 0 }, | |
5546 | { "m", 0, 0, 0, 0 }, | |
5547 | { "mex", 0, 0, 0, 0 }, | |
5548 | { "mc", 0, 0, 0, 0 }, | |
5549 | { "md", 0, 0, 0, 0 }, | |
5550 | { "nest", opt_nest, 0, 0, 0 }, | |
5551 | { "next", skip_to_comma, 0, 0, 0 }, | |
5552 | { "o", 0, 0, 0, 0 }, | |
5553 | { "old", 0, 0, 0, 0 }, | |
5554 | { "op", skip_to_comma, 0, 0, 0 }, | |
5555 | { "pco", 0, 0, 0, 0 }, | |
5556 | { "p", opt_chip, 0, 0, 0 }, | |
5557 | { "pcr", 0, 0, 0, 0 }, | |
5558 | { "pcs", 0, 0, 0, 0 }, | |
5559 | { "r", 0, 0, 0, 0 }, | |
5560 | { "quick", 0, &m68k_quick, 1, 0 }, | |
5561 | { "rel32", 0, &m68k_rel32, 1, 0 }, | |
5562 | { "s", opt_list, 0, 0, 0 }, | |
5563 | { "t", opt_list_symbols, 0, 0, 0 }, | |
5564 | { "w", 0, &flag_no_warnings, 0, 1 }, | |
5565 | { "x", 0, 0, 0, 0 } | |
5566 | }; | |
5567 | ||
8fce3f5e | 5568 | #define OPTCOUNT ((int) (sizeof opt_table / sizeof opt_table[0])) |
252b5132 RH |
5569 | |
5570 | /* The MRI OPT pseudo-op. */ | |
5571 | ||
5572 | static void | |
31302357 | 5573 | s_opt (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
5574 | { |
5575 | do | |
5576 | { | |
5577 | int t; | |
5578 | char *s; | |
5579 | char c; | |
5580 | int i; | |
5581 | const struct opt_action *o; | |
5582 | ||
5583 | SKIP_WHITESPACE (); | |
5584 | ||
5585 | t = 1; | |
5586 | if (*input_line_pointer == '-') | |
5587 | { | |
5588 | ++input_line_pointer; | |
5589 | t = 0; | |
5590 | } | |
5591 | else if (strncasecmp (input_line_pointer, "NO", 2) == 0) | |
5592 | { | |
5593 | input_line_pointer += 2; | |
5594 | t = 0; | |
5595 | } | |
5596 | ||
5597 | s = input_line_pointer; | |
5598 | c = get_symbol_end (); | |
5599 | ||
5600 | for (i = 0, o = opt_table; i < OPTCOUNT; i++, o++) | |
5601 | { | |
5602 | if (strcasecmp (s, o->name) == 0) | |
5603 | { | |
5604 | if (o->pfn) | |
5605 | { | |
5606 | /* Restore input_line_pointer now in case the option | |
5607 | takes arguments. */ | |
5608 | *input_line_pointer = c; | |
5609 | (*o->pfn) (o->arg, t); | |
5610 | } | |
5611 | else if (o->pvar != NULL) | |
5612 | { | |
5613 | if (! t && o->arg == o->notarg) | |
5614 | as_bad (_("option `%s' may not be negated"), s); | |
5615 | *input_line_pointer = c; | |
5616 | *o->pvar = t ? o->arg : o->notarg; | |
5617 | } | |
5618 | else | |
5619 | *input_line_pointer = c; | |
5620 | break; | |
5621 | } | |
5622 | } | |
5623 | if (i >= OPTCOUNT) | |
5624 | { | |
5625 | as_bad (_("option `%s' not recognized"), s); | |
5626 | *input_line_pointer = c; | |
5627 | } | |
5628 | } | |
5629 | while (*input_line_pointer++ == ','); | |
5630 | ||
5631 | /* Move back to terminating character. */ | |
5632 | --input_line_pointer; | |
5633 | demand_empty_rest_of_line (); | |
5634 | } | |
5635 | ||
5636 | /* Skip ahead to a comma. This is used for OPT options which we do | |
67c1ffbe | 5637 | not support and which take arguments. */ |
252b5132 RH |
5638 | |
5639 | static void | |
31302357 | 5640 | skip_to_comma (int arg ATTRIBUTE_UNUSED, int on ATTRIBUTE_UNUSED) |
252b5132 RH |
5641 | { |
5642 | while (*input_line_pointer != ',' | |
5643 | && ! is_end_of_line[(unsigned char) *input_line_pointer]) | |
5644 | ++input_line_pointer; | |
5645 | } | |
5646 | ||
5647 | /* Handle the OPT NEST=depth option. */ | |
5648 | ||
5649 | static void | |
31302357 | 5650 | opt_nest (int arg ATTRIBUTE_UNUSED, int on ATTRIBUTE_UNUSED) |
252b5132 RH |
5651 | { |
5652 | if (*input_line_pointer != '=') | |
5653 | { | |
5654 | as_bad (_("bad format of OPT NEST=depth")); | |
5655 | return; | |
5656 | } | |
5657 | ||
5658 | ++input_line_pointer; | |
5659 | max_macro_nest = get_absolute_expression (); | |
5660 | } | |
5661 | ||
5662 | /* Handle the OPT P=chip option. */ | |
5663 | ||
5664 | static void | |
31302357 | 5665 | opt_chip (int arg ATTRIBUTE_UNUSED, int on ATTRIBUTE_UNUSED) |
252b5132 RH |
5666 | { |
5667 | if (*input_line_pointer != '=') | |
5668 | { | |
5669 | /* This is just OPT P, which we do not support. */ | |
5670 | return; | |
5671 | } | |
5672 | ||
5673 | ++input_line_pointer; | |
5674 | mri_chip (); | |
5675 | } | |
5676 | ||
5677 | /* Handle the OPT S option. */ | |
5678 | ||
5679 | static void | |
31302357 | 5680 | opt_list (int arg ATTRIBUTE_UNUSED, int on) |
252b5132 RH |
5681 | { |
5682 | listing_list (on); | |
5683 | } | |
5684 | ||
5685 | /* Handle the OPT T option. */ | |
5686 | ||
5687 | static void | |
31302357 | 5688 | opt_list_symbols (int arg ATTRIBUTE_UNUSED, int on) |
252b5132 RH |
5689 | { |
5690 | if (on) | |
5691 | listing |= LISTING_SYMBOLS; | |
5692 | else | |
8a104df9 | 5693 | listing &= ~LISTING_SYMBOLS; |
252b5132 RH |
5694 | } |
5695 | ||
5696 | /* Handle the MRI REG pseudo-op. */ | |
5697 | ||
5698 | static void | |
31302357 | 5699 | s_reg (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
5700 | { |
5701 | char *s; | |
5702 | int c; | |
5703 | struct m68k_op rop; | |
5704 | int mask; | |
5705 | char *stop = NULL; | |
5706 | char stopc; | |
5707 | ||
5708 | if (line_label == NULL) | |
5709 | { | |
5710 | as_bad (_("missing label")); | |
5711 | ignore_rest_of_line (); | |
5712 | return; | |
5713 | } | |
5714 | ||
5715 | if (flag_mri) | |
5716 | stop = mri_comment_field (&stopc); | |
5717 | ||
5718 | SKIP_WHITESPACE (); | |
5719 | ||
5720 | s = input_line_pointer; | |
3882b010 | 5721 | while (ISALNUM (*input_line_pointer) |
252b5132 RH |
5722 | #ifdef REGISTER_PREFIX |
5723 | || *input_line_pointer == REGISTER_PREFIX | |
5724 | #endif | |
5725 | || *input_line_pointer == '/' | |
5726 | || *input_line_pointer == '-') | |
5727 | ++input_line_pointer; | |
5728 | c = *input_line_pointer; | |
5729 | *input_line_pointer = '\0'; | |
5730 | ||
5731 | if (m68k_ip_op (s, &rop) != 0) | |
5732 | { | |
5733 | if (rop.error == NULL) | |
5734 | as_bad (_("bad register list")); | |
5735 | else | |
5736 | as_bad (_("bad register list: %s"), rop.error); | |
5737 | *input_line_pointer = c; | |
5738 | ignore_rest_of_line (); | |
5739 | return; | |
5740 | } | |
5741 | ||
5742 | *input_line_pointer = c; | |
5743 | ||
5744 | if (rop.mode == REGLST) | |
5745 | mask = rop.mask; | |
5746 | else if (rop.mode == DREG) | |
5747 | mask = 1 << (rop.reg - DATA0); | |
5748 | else if (rop.mode == AREG) | |
5749 | mask = 1 << (rop.reg - ADDR0 + 8); | |
5750 | else if (rop.mode == FPREG) | |
5751 | mask = 1 << (rop.reg - FP0 + 16); | |
5752 | else if (rop.mode == CONTROL | |
5753 | && rop.reg == FPI) | |
5754 | mask = 1 << 24; | |
5755 | else if (rop.mode == CONTROL | |
5756 | && rop.reg == FPS) | |
5757 | mask = 1 << 25; | |
5758 | else if (rop.mode == CONTROL | |
5759 | && rop.reg == FPC) | |
5760 | mask = 1 << 26; | |
5761 | else | |
5762 | { | |
5763 | as_bad (_("bad register list")); | |
5764 | ignore_rest_of_line (); | |
5765 | return; | |
5766 | } | |
5767 | ||
5768 | S_SET_SEGMENT (line_label, reg_section); | |
5769 | S_SET_VALUE (line_label, ~mask); | |
49309057 | 5770 | symbol_set_frag (line_label, &zero_address_frag); |
252b5132 RH |
5771 | |
5772 | if (flag_mri) | |
5773 | mri_comment_end (stop, stopc); | |
5774 | ||
5775 | demand_empty_rest_of_line (); | |
5776 | } | |
5777 | ||
5778 | /* This structure is used for the MRI SAVE and RESTORE pseudo-ops. */ | |
5779 | ||
5780 | struct save_opts | |
5781 | { | |
5782 | struct save_opts *next; | |
5783 | int abspcadd; | |
5784 | int symbols_case_sensitive; | |
5785 | int keep_locals; | |
5786 | int short_refs; | |
5787 | int architecture; | |
6b6e92f4 | 5788 | int chip; |
252b5132 RH |
5789 | int quick; |
5790 | int rel32; | |
5791 | int listing; | |
5792 | int no_warnings; | |
5793 | /* FIXME: We don't save OPT S. */ | |
5794 | }; | |
5795 | ||
5796 | /* This variable holds the stack of saved options. */ | |
5797 | ||
5798 | static struct save_opts *save_stack; | |
5799 | ||
5800 | /* The MRI SAVE pseudo-op. */ | |
5801 | ||
5802 | static void | |
31302357 | 5803 | s_save (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
5804 | { |
5805 | struct save_opts *s; | |
5806 | ||
5807 | s = (struct save_opts *) xmalloc (sizeof (struct save_opts)); | |
5808 | s->abspcadd = m68k_abspcadd; | |
5809 | s->symbols_case_sensitive = symbols_case_sensitive; | |
5810 | s->keep_locals = flag_keep_locals; | |
5811 | s->short_refs = flag_short_refs; | |
5812 | s->architecture = current_architecture; | |
6b6e92f4 | 5813 | s->chip = current_chip; |
252b5132 RH |
5814 | s->quick = m68k_quick; |
5815 | s->rel32 = m68k_rel32; | |
5816 | s->listing = listing; | |
5817 | s->no_warnings = flag_no_warnings; | |
5818 | ||
5819 | s->next = save_stack; | |
5820 | save_stack = s; | |
5821 | ||
5822 | demand_empty_rest_of_line (); | |
5823 | } | |
5824 | ||
5825 | /* The MRI RESTORE pseudo-op. */ | |
5826 | ||
5827 | static void | |
31302357 | 5828 | s_restore (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
5829 | { |
5830 | struct save_opts *s; | |
5831 | ||
5832 | if (save_stack == NULL) | |
5833 | { | |
5834 | as_bad (_("restore without save")); | |
5835 | ignore_rest_of_line (); | |
5836 | return; | |
5837 | } | |
5838 | ||
5839 | s = save_stack; | |
5840 | save_stack = s->next; | |
5841 | ||
5842 | m68k_abspcadd = s->abspcadd; | |
5843 | symbols_case_sensitive = s->symbols_case_sensitive; | |
5844 | flag_keep_locals = s->keep_locals; | |
5845 | flag_short_refs = s->short_refs; | |
5846 | current_architecture = s->architecture; | |
6b6e92f4 | 5847 | current_chip = s->chip; |
252b5132 RH |
5848 | m68k_quick = s->quick; |
5849 | m68k_rel32 = s->rel32; | |
5850 | listing = s->listing; | |
5851 | flag_no_warnings = s->no_warnings; | |
5852 | ||
5853 | free (s); | |
5854 | ||
5855 | demand_empty_rest_of_line (); | |
5856 | } | |
5857 | ||
5858 | /* Types of MRI structured control directives. */ | |
5859 | ||
5860 | enum mri_control_type | |
5861 | { | |
5862 | mri_for, | |
5863 | mri_if, | |
5864 | mri_repeat, | |
5865 | mri_while | |
5866 | }; | |
5867 | ||
5868 | /* This structure is used to stack the MRI structured control | |
5869 | directives. */ | |
5870 | ||
5871 | struct mri_control_info | |
5872 | { | |
5873 | /* The directive within which this one is enclosed. */ | |
5874 | struct mri_control_info *outer; | |
5875 | ||
5876 | /* The type of directive. */ | |
5877 | enum mri_control_type type; | |
5878 | ||
5879 | /* Whether an ELSE has been in an IF. */ | |
5880 | int else_seen; | |
5881 | ||
5882 | /* The add or sub statement at the end of a FOR. */ | |
5883 | char *incr; | |
5884 | ||
5885 | /* The label of the top of a FOR or REPEAT loop. */ | |
5886 | char *top; | |
5887 | ||
5888 | /* The label to jump to for the next iteration, or the else | |
5889 | expression of a conditional. */ | |
5890 | char *next; | |
5891 | ||
5892 | /* The label to jump to to break out of the loop, or the label past | |
5893 | the end of a conditional. */ | |
5894 | char *bottom; | |
5895 | }; | |
5896 | ||
5897 | /* The stack of MRI structured control directives. */ | |
5898 | ||
5899 | static struct mri_control_info *mri_control_stack; | |
5900 | ||
5901 | /* The current MRI structured control directive index number, used to | |
5902 | generate label names. */ | |
5903 | ||
5904 | static int mri_control_index; | |
5905 | ||
252b5132 RH |
5906 | /* Assemble an instruction for an MRI structured control directive. */ |
5907 | ||
5908 | static void | |
31302357 | 5909 | mri_assemble (char *str) |
252b5132 RH |
5910 | { |
5911 | char *s; | |
5912 | ||
5913 | /* md_assemble expects the opcode to be in lower case. */ | |
5914 | for (s = str; *s != ' ' && *s != '\0'; s++) | |
3882b010 | 5915 | *s = TOLOWER (*s); |
252b5132 RH |
5916 | |
5917 | md_assemble (str); | |
5918 | } | |
5919 | ||
5920 | /* Generate a new MRI label structured control directive label name. */ | |
5921 | ||
5922 | static char * | |
31302357 | 5923 | mri_control_label (void) |
252b5132 RH |
5924 | { |
5925 | char *n; | |
5926 | ||
5927 | n = (char *) xmalloc (20); | |
5928 | sprintf (n, "%smc%d", FAKE_LABEL_NAME, mri_control_index); | |
5929 | ++mri_control_index; | |
5930 | return n; | |
5931 | } | |
5932 | ||
5933 | /* Create a new MRI structured control directive. */ | |
5934 | ||
5935 | static struct mri_control_info * | |
31302357 | 5936 | push_mri_control (enum mri_control_type type) |
252b5132 RH |
5937 | { |
5938 | struct mri_control_info *n; | |
5939 | ||
5940 | n = (struct mri_control_info *) xmalloc (sizeof (struct mri_control_info)); | |
5941 | ||
5942 | n->type = type; | |
5943 | n->else_seen = 0; | |
5944 | if (type == mri_if || type == mri_while) | |
5945 | n->top = NULL; | |
5946 | else | |
5947 | n->top = mri_control_label (); | |
5948 | n->next = mri_control_label (); | |
5949 | n->bottom = mri_control_label (); | |
5950 | ||
5951 | n->outer = mri_control_stack; | |
5952 | mri_control_stack = n; | |
5953 | ||
5954 | return n; | |
5955 | } | |
5956 | ||
5957 | /* Pop off the stack of MRI structured control directives. */ | |
5958 | ||
5959 | static void | |
31302357 | 5960 | pop_mri_control (void) |
252b5132 RH |
5961 | { |
5962 | struct mri_control_info *n; | |
5963 | ||
5964 | n = mri_control_stack; | |
5965 | mri_control_stack = n->outer; | |
5966 | if (n->top != NULL) | |
5967 | free (n->top); | |
5968 | free (n->next); | |
5969 | free (n->bottom); | |
5970 | free (n); | |
5971 | } | |
5972 | ||
5973 | /* Recognize a condition code in an MRI structured control expression. */ | |
5974 | ||
5975 | static int | |
31302357 | 5976 | parse_mri_condition (int *pcc) |
252b5132 RH |
5977 | { |
5978 | char c1, c2; | |
5979 | ||
5980 | know (*input_line_pointer == '<'); | |
5981 | ||
5982 | ++input_line_pointer; | |
5983 | c1 = *input_line_pointer++; | |
5984 | c2 = *input_line_pointer++; | |
5985 | ||
5986 | if (*input_line_pointer != '>') | |
5987 | { | |
5988 | as_bad (_("syntax error in structured control directive")); | |
5989 | return 0; | |
5990 | } | |
5991 | ||
5992 | ++input_line_pointer; | |
5993 | SKIP_WHITESPACE (); | |
5994 | ||
3882b010 L |
5995 | c1 = TOLOWER (c1); |
5996 | c2 = TOLOWER (c2); | |
252b5132 RH |
5997 | |
5998 | *pcc = (c1 << 8) | c2; | |
5999 | ||
6000 | return 1; | |
6001 | } | |
6002 | ||
6003 | /* Parse a single operand in an MRI structured control expression. */ | |
6004 | ||
6005 | static int | |
31302357 AS |
6006 | parse_mri_control_operand (int *pcc, char **leftstart, char **leftstop, |
6007 | char **rightstart, char **rightstop) | |
252b5132 RH |
6008 | { |
6009 | char *s; | |
6010 | ||
6011 | SKIP_WHITESPACE (); | |
6012 | ||
6013 | *pcc = -1; | |
6014 | *leftstart = NULL; | |
6015 | *leftstop = NULL; | |
6016 | *rightstart = NULL; | |
6017 | *rightstop = NULL; | |
6018 | ||
6019 | if (*input_line_pointer == '<') | |
6020 | { | |
6021 | /* It's just a condition code. */ | |
6022 | return parse_mri_condition (pcc); | |
6023 | } | |
6024 | ||
6025 | /* Look ahead for the condition code. */ | |
6026 | for (s = input_line_pointer; *s != '\0'; ++s) | |
6027 | { | |
6028 | if (*s == '<' && s[1] != '\0' && s[2] != '\0' && s[3] == '>') | |
6029 | break; | |
6030 | } | |
6031 | if (*s == '\0') | |
6032 | { | |
6033 | as_bad (_("missing condition code in structured control directive")); | |
6034 | return 0; | |
6035 | } | |
6036 | ||
6037 | *leftstart = input_line_pointer; | |
6038 | *leftstop = s; | |
6039 | if (*leftstop > *leftstart | |
6040 | && ((*leftstop)[-1] == ' ' || (*leftstop)[-1] == '\t')) | |
6041 | --*leftstop; | |
6042 | ||
6043 | input_line_pointer = s; | |
6044 | if (! parse_mri_condition (pcc)) | |
6045 | return 0; | |
6046 | ||
6047 | /* Look ahead for AND or OR or end of line. */ | |
6048 | for (s = input_line_pointer; *s != '\0'; ++s) | |
6049 | { | |
e1f44d10 NC |
6050 | /* We must make sure we don't misinterpret AND/OR at the end of labels! |
6051 | if d0 <eq> #FOOAND and d1 <ne> #BAROR then | |
6052 | ^^^ ^^ */ | |
8a104df9 KH |
6053 | if ((s == input_line_pointer |
6054 | || *(s-1) == ' ' | |
6055 | || *(s-1) == '\t') | |
6056 | && ((strncasecmp (s, "AND", 3) == 0 | |
6057 | && (s[3] == '.' || ! is_part_of_name (s[3]))) | |
6058 | || (strncasecmp (s, "OR", 2) == 0 | |
6059 | && (s[2] == '.' || ! is_part_of_name (s[2]))))) | |
6060 | break; | |
252b5132 RH |
6061 | } |
6062 | ||
6063 | *rightstart = input_line_pointer; | |
6064 | *rightstop = s; | |
6065 | if (*rightstop > *rightstart | |
6066 | && ((*rightstop)[-1] == ' ' || (*rightstop)[-1] == '\t')) | |
6067 | --*rightstop; | |
6068 | ||
6069 | input_line_pointer = s; | |
6070 | ||
6071 | return 1; | |
6072 | } | |
6073 | ||
6074 | #define MCC(b1, b2) (((b1) << 8) | (b2)) | |
6075 | ||
6076 | /* Swap the sense of a condition. This changes the condition so that | |
6077 | it generates the same result when the operands are swapped. */ | |
6078 | ||
6079 | static int | |
31302357 | 6080 | swap_mri_condition (int cc) |
252b5132 RH |
6081 | { |
6082 | switch (cc) | |
6083 | { | |
6084 | case MCC ('h', 'i'): return MCC ('c', 's'); | |
6085 | case MCC ('l', 's'): return MCC ('c', 'c'); | |
36759679 | 6086 | /* <HS> is an alias for <CC>. */ |
e1f44d10 | 6087 | case MCC ('h', 's'): |
252b5132 | 6088 | case MCC ('c', 'c'): return MCC ('l', 's'); |
36759679 | 6089 | /* <LO> is an alias for <CS>. */ |
e1f44d10 | 6090 | case MCC ('l', 'o'): |
252b5132 RH |
6091 | case MCC ('c', 's'): return MCC ('h', 'i'); |
6092 | case MCC ('p', 'l'): return MCC ('m', 'i'); | |
6093 | case MCC ('m', 'i'): return MCC ('p', 'l'); | |
6094 | case MCC ('g', 'e'): return MCC ('l', 'e'); | |
6095 | case MCC ('l', 't'): return MCC ('g', 't'); | |
6096 | case MCC ('g', 't'): return MCC ('l', 't'); | |
6097 | case MCC ('l', 'e'): return MCC ('g', 'e'); | |
36759679 | 6098 | /* Issue a warning for conditions we can not swap. */ |
e1f44d10 NC |
6099 | case MCC ('n', 'e'): return MCC ('n', 'e'); // no problem here |
6100 | case MCC ('e', 'q'): return MCC ('e', 'q'); // also no problem | |
6101 | case MCC ('v', 'c'): | |
6102 | case MCC ('v', 's'): | |
6103 | default : | |
6104 | as_warn (_("Condition <%c%c> in structured control directive can not be encoded correctly"), | |
6105 | (char) (cc >> 8), (char) (cc)); | |
6106 | break; | |
252b5132 RH |
6107 | } |
6108 | return cc; | |
6109 | } | |
6110 | ||
6111 | /* Reverse the sense of a condition. */ | |
6112 | ||
6113 | static int | |
31302357 | 6114 | reverse_mri_condition (int cc) |
252b5132 RH |
6115 | { |
6116 | switch (cc) | |
6117 | { | |
6118 | case MCC ('h', 'i'): return MCC ('l', 's'); | |
6119 | case MCC ('l', 's'): return MCC ('h', 'i'); | |
e1f44d10 NC |
6120 | /* <HS> is an alias for <CC> */ |
6121 | case MCC ('h', 's'): return MCC ('l', 'o'); | |
252b5132 | 6122 | case MCC ('c', 'c'): return MCC ('c', 's'); |
e1f44d10 NC |
6123 | /* <LO> is an alias for <CS> */ |
6124 | case MCC ('l', 'o'): return MCC ('h', 's'); | |
252b5132 RH |
6125 | case MCC ('c', 's'): return MCC ('c', 'c'); |
6126 | case MCC ('n', 'e'): return MCC ('e', 'q'); | |
6127 | case MCC ('e', 'q'): return MCC ('n', 'e'); | |
6128 | case MCC ('v', 'c'): return MCC ('v', 's'); | |
6129 | case MCC ('v', 's'): return MCC ('v', 'c'); | |
6130 | case MCC ('p', 'l'): return MCC ('m', 'i'); | |
6131 | case MCC ('m', 'i'): return MCC ('p', 'l'); | |
6132 | case MCC ('g', 'e'): return MCC ('l', 't'); | |
6133 | case MCC ('l', 't'): return MCC ('g', 'e'); | |
6134 | case MCC ('g', 't'): return MCC ('l', 'e'); | |
6135 | case MCC ('l', 'e'): return MCC ('g', 't'); | |
6136 | } | |
6137 | return cc; | |
6138 | } | |
6139 | ||
6140 | /* Build an MRI structured control expression. This generates test | |
6141 | and branch instructions. It goes to TRUELAB if the condition is | |
6142 | true, and to FALSELAB if the condition is false. Exactly one of | |
6143 | TRUELAB and FALSELAB will be NULL, meaning to fall through. QUAL | |
6144 | is the size qualifier for the expression. EXTENT is the size to | |
6145 | use for the branch. */ | |
6146 | ||
6147 | static void | |
31302357 AS |
6148 | build_mri_control_operand (int qual, int cc, char *leftstart, char *leftstop, |
6149 | char *rightstart, char *rightstop, | |
6150 | const char *truelab, const char *falselab, | |
6151 | int extent) | |
252b5132 RH |
6152 | { |
6153 | char *buf; | |
6154 | char *s; | |
6155 | ||
6156 | if (leftstart != NULL) | |
6157 | { | |
6158 | struct m68k_op leftop, rightop; | |
6159 | char c; | |
6160 | ||
6161 | /* Swap the compare operands, if necessary, to produce a legal | |
6162 | m68k compare instruction. Comparing a register operand with | |
6163 | a non-register operand requires the register to be on the | |
6164 | right (cmp, cmpa). Comparing an immediate value with | |
6165 | anything requires the immediate value to be on the left | |
6166 | (cmpi). */ | |
6167 | ||
6168 | c = *leftstop; | |
6169 | *leftstop = '\0'; | |
6170 | (void) m68k_ip_op (leftstart, &leftop); | |
6171 | *leftstop = c; | |
6172 | ||
6173 | c = *rightstop; | |
6174 | *rightstop = '\0'; | |
6175 | (void) m68k_ip_op (rightstart, &rightop); | |
6176 | *rightstop = c; | |
6177 | ||
6178 | if (rightop.mode == IMMED | |
6179 | || ((leftop.mode == DREG || leftop.mode == AREG) | |
6180 | && (rightop.mode != DREG && rightop.mode != AREG))) | |
6181 | { | |
6182 | char *temp; | |
6183 | ||
31302357 AS |
6184 | /* Correct conditional handling: |
6185 | if #1 <lt> d0 then ;means if (1 < d0) | |
6186 | ... | |
6187 | endi | |
e1f44d10 | 6188 | |
31302357 | 6189 | should assemble to: |
e1f44d10 | 6190 | |
31302357 AS |
6191 | cmp #1,d0 if we do *not* swap the operands |
6192 | bgt true we need the swapped condition! | |
6193 | ble false | |
6194 | true: | |
6195 | ... | |
6196 | false: | |
6197 | */ | |
252b5132 RH |
6198 | temp = leftstart; |
6199 | leftstart = rightstart; | |
6200 | rightstart = temp; | |
6201 | temp = leftstop; | |
6202 | leftstop = rightstop; | |
6203 | rightstop = temp; | |
8a104df9 KH |
6204 | } |
6205 | else | |
6206 | { | |
e1f44d10 | 6207 | cc = swap_mri_condition (cc); |
252b5132 RH |
6208 | } |
6209 | } | |
6210 | ||
6211 | if (truelab == NULL) | |
6212 | { | |
6213 | cc = reverse_mri_condition (cc); | |
6214 | truelab = falselab; | |
6215 | } | |
92774660 | 6216 | |
252b5132 RH |
6217 | if (leftstart != NULL) |
6218 | { | |
6219 | buf = (char *) xmalloc (20 | |
6220 | + (leftstop - leftstart) | |
6221 | + (rightstop - rightstart)); | |
6222 | s = buf; | |
6223 | *s++ = 'c'; | |
6224 | *s++ = 'm'; | |
6225 | *s++ = 'p'; | |
6226 | if (qual != '\0') | |
3882b010 | 6227 | *s++ = TOLOWER (qual); |
252b5132 RH |
6228 | *s++ = ' '; |
6229 | memcpy (s, leftstart, leftstop - leftstart); | |
6230 | s += leftstop - leftstart; | |
6231 | *s++ = ','; | |
6232 | memcpy (s, rightstart, rightstop - rightstart); | |
6233 | s += rightstop - rightstart; | |
6234 | *s = '\0'; | |
6235 | mri_assemble (buf); | |
6236 | free (buf); | |
6237 | } | |
92774660 | 6238 | |
252b5132 RH |
6239 | buf = (char *) xmalloc (20 + strlen (truelab)); |
6240 | s = buf; | |
6241 | *s++ = 'b'; | |
6242 | *s++ = cc >> 8; | |
6243 | *s++ = cc & 0xff; | |
6244 | if (extent != '\0') | |
3882b010 | 6245 | *s++ = TOLOWER (extent); |
252b5132 RH |
6246 | *s++ = ' '; |
6247 | strcpy (s, truelab); | |
6248 | mri_assemble (buf); | |
6249 | free (buf); | |
6250 | } | |
6251 | ||
6252 | /* Parse an MRI structured control expression. This generates test | |
6253 | and branch instructions. STOP is where the expression ends. It | |
6254 | goes to TRUELAB if the condition is true, and to FALSELAB if the | |
6255 | condition is false. Exactly one of TRUELAB and FALSELAB will be | |
6256 | NULL, meaning to fall through. QUAL is the size qualifier for the | |
6257 | expression. EXTENT is the size to use for the branch. */ | |
6258 | ||
6259 | static void | |
31302357 AS |
6260 | parse_mri_control_expression (char *stop, int qual, const char *truelab, |
6261 | const char *falselab, int extent) | |
252b5132 RH |
6262 | { |
6263 | int c; | |
6264 | int cc; | |
6265 | char *leftstart; | |
6266 | char *leftstop; | |
6267 | char *rightstart; | |
6268 | char *rightstop; | |
6269 | ||
6270 | c = *stop; | |
6271 | *stop = '\0'; | |
6272 | ||
6273 | if (! parse_mri_control_operand (&cc, &leftstart, &leftstop, | |
6274 | &rightstart, &rightstop)) | |
6275 | { | |
6276 | *stop = c; | |
6277 | return; | |
6278 | } | |
6279 | ||
6280 | if (strncasecmp (input_line_pointer, "AND", 3) == 0) | |
6281 | { | |
6282 | const char *flab; | |
6283 | ||
6284 | if (falselab != NULL) | |
6285 | flab = falselab; | |
6286 | else | |
6287 | flab = mri_control_label (); | |
6288 | ||
6289 | build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart, | |
6290 | rightstop, (const char *) NULL, flab, extent); | |
6291 | ||
6292 | input_line_pointer += 3; | |
6293 | if (*input_line_pointer != '.' | |
6294 | || input_line_pointer[1] == '\0') | |
6295 | qual = '\0'; | |
6296 | else | |
6297 | { | |
6298 | qual = input_line_pointer[1]; | |
6299 | input_line_pointer += 2; | |
6300 | } | |
6301 | ||
6302 | if (! parse_mri_control_operand (&cc, &leftstart, &leftstop, | |
6303 | &rightstart, &rightstop)) | |
6304 | { | |
6305 | *stop = c; | |
6306 | return; | |
6307 | } | |
6308 | ||
6309 | build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart, | |
6310 | rightstop, truelab, falselab, extent); | |
6311 | ||
6312 | if (falselab == NULL) | |
6313 | colon (flab); | |
6314 | } | |
6315 | else if (strncasecmp (input_line_pointer, "OR", 2) == 0) | |
6316 | { | |
6317 | const char *tlab; | |
6318 | ||
6319 | if (truelab != NULL) | |
6320 | tlab = truelab; | |
6321 | else | |
6322 | tlab = mri_control_label (); | |
6323 | ||
6324 | build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart, | |
6325 | rightstop, tlab, (const char *) NULL, extent); | |
6326 | ||
6327 | input_line_pointer += 2; | |
6328 | if (*input_line_pointer != '.' | |
6329 | || input_line_pointer[1] == '\0') | |
6330 | qual = '\0'; | |
6331 | else | |
6332 | { | |
6333 | qual = input_line_pointer[1]; | |
6334 | input_line_pointer += 2; | |
6335 | } | |
6336 | ||
6337 | if (! parse_mri_control_operand (&cc, &leftstart, &leftstop, | |
6338 | &rightstart, &rightstop)) | |
6339 | { | |
6340 | *stop = c; | |
6341 | return; | |
6342 | } | |
6343 | ||
6344 | build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart, | |
6345 | rightstop, truelab, falselab, extent); | |
6346 | ||
6347 | if (truelab == NULL) | |
6348 | colon (tlab); | |
6349 | } | |
6350 | else | |
6351 | { | |
6352 | build_mri_control_operand (qual, cc, leftstart, leftstop, rightstart, | |
6353 | rightstop, truelab, falselab, extent); | |
6354 | } | |
6355 | ||
6356 | *stop = c; | |
6357 | if (input_line_pointer != stop) | |
6358 | as_bad (_("syntax error in structured control directive")); | |
6359 | } | |
6360 | ||
6361 | /* Handle the MRI IF pseudo-op. This may be a structured control | |
6362 | directive, or it may be a regular assembler conditional, depending | |
6363 | on its operands. */ | |
6364 | ||
6365 | static void | |
31302357 | 6366 | s_mri_if (int qual) |
252b5132 RH |
6367 | { |
6368 | char *s; | |
6369 | int c; | |
6370 | struct mri_control_info *n; | |
6371 | ||
6372 | /* A structured control directive must end with THEN with an | |
6373 | optional qualifier. */ | |
6374 | s = input_line_pointer; | |
e1f44d10 NC |
6375 | /* We only accept '*' as introduction of comments if preceded by white space |
6376 | or at first column of a line (I think this can't actually happen here?) | |
6377 | This is important when assembling: | |
6378 | if d0 <ne> 12(a0,d0*2) then | |
36759679 | 6379 | if d0 <ne> #CONST*20 then. */ |
31302357 AS |
6380 | while (! (is_end_of_line[(unsigned char) *s] |
6381 | || (flag_mri | |
6382 | && *s == '*' | |
6383 | && (s == input_line_pointer | |
6384 | || *(s-1) == ' ' | |
6385 | || *(s-1) == '\t')))) | |
252b5132 RH |
6386 | ++s; |
6387 | --s; | |
6388 | while (s > input_line_pointer && (*s == ' ' || *s == '\t')) | |
6389 | --s; | |
6390 | ||
6391 | if (s - input_line_pointer > 1 | |
6392 | && s[-1] == '.') | |
6393 | s -= 2; | |
6394 | ||
6395 | if (s - input_line_pointer < 3 | |
6396 | || strncasecmp (s - 3, "THEN", 4) != 0) | |
6397 | { | |
6398 | if (qual != '\0') | |
6399 | { | |
6400 | as_bad (_("missing then")); | |
6401 | ignore_rest_of_line (); | |
6402 | return; | |
6403 | } | |
6404 | ||
6405 | /* It's a conditional. */ | |
6406 | s_if (O_ne); | |
6407 | return; | |
6408 | } | |
6409 | ||
6410 | /* Since this might be a conditional if, this pseudo-op will be | |
6411 | called even if we are supported to be ignoring input. Double | |
6412 | check now. Clobber *input_line_pointer so that ignore_input | |
6413 | thinks that this is not a special pseudo-op. */ | |
6414 | c = *input_line_pointer; | |
6415 | *input_line_pointer = 0; | |
6416 | if (ignore_input ()) | |
6417 | { | |
6418 | *input_line_pointer = c; | |
6419 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6420 | ++input_line_pointer; | |
6421 | demand_empty_rest_of_line (); | |
6422 | return; | |
6423 | } | |
6424 | *input_line_pointer = c; | |
6425 | ||
6426 | n = push_mri_control (mri_if); | |
6427 | ||
6428 | parse_mri_control_expression (s - 3, qual, (const char *) NULL, | |
6429 | n->next, s[1] == '.' ? s[2] : '\0'); | |
6430 | ||
6431 | if (s[1] == '.') | |
6432 | input_line_pointer = s + 3; | |
6433 | else | |
6434 | input_line_pointer = s + 1; | |
6435 | ||
6436 | if (flag_mri) | |
6437 | { | |
6438 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6439 | ++input_line_pointer; | |
6440 | } | |
6441 | ||
6442 | demand_empty_rest_of_line (); | |
6443 | } | |
6444 | ||
6445 | /* Handle the MRI else pseudo-op. If we are currently doing an MRI | |
6446 | structured IF, associate the ELSE with the IF. Otherwise, assume | |
6447 | it is a conditional else. */ | |
6448 | ||
6449 | static void | |
31302357 | 6450 | s_mri_else (int qual) |
252b5132 RH |
6451 | { |
6452 | int c; | |
6453 | char *buf; | |
6454 | char q[2]; | |
6455 | ||
6456 | if (qual == '\0' | |
6457 | && (mri_control_stack == NULL | |
6458 | || mri_control_stack->type != mri_if | |
6459 | || mri_control_stack->else_seen)) | |
6460 | { | |
6461 | s_else (0); | |
6462 | return; | |
6463 | } | |
6464 | ||
6465 | c = *input_line_pointer; | |
6466 | *input_line_pointer = 0; | |
6467 | if (ignore_input ()) | |
6468 | { | |
6469 | *input_line_pointer = c; | |
6470 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6471 | ++input_line_pointer; | |
6472 | demand_empty_rest_of_line (); | |
6473 | return; | |
6474 | } | |
6475 | *input_line_pointer = c; | |
6476 | ||
6477 | if (mri_control_stack == NULL | |
6478 | || mri_control_stack->type != mri_if | |
6479 | || mri_control_stack->else_seen) | |
6480 | { | |
6481 | as_bad (_("else without matching if")); | |
6482 | ignore_rest_of_line (); | |
6483 | return; | |
6484 | } | |
6485 | ||
6486 | mri_control_stack->else_seen = 1; | |
6487 | ||
6488 | buf = (char *) xmalloc (20 + strlen (mri_control_stack->bottom)); | |
3882b010 | 6489 | q[0] = TOLOWER (qual); |
252b5132 RH |
6490 | q[1] = '\0'; |
6491 | sprintf (buf, "bra%s %s", q, mri_control_stack->bottom); | |
6492 | mri_assemble (buf); | |
6493 | free (buf); | |
6494 | ||
6495 | colon (mri_control_stack->next); | |
6496 | ||
6497 | if (flag_mri) | |
6498 | { | |
6499 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6500 | ++input_line_pointer; | |
6501 | } | |
6502 | ||
6503 | demand_empty_rest_of_line (); | |
6504 | } | |
6505 | ||
6506 | /* Handle the MRI ENDI pseudo-op. */ | |
6507 | ||
6508 | static void | |
31302357 | 6509 | s_mri_endi (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
6510 | { |
6511 | if (mri_control_stack == NULL | |
6512 | || mri_control_stack->type != mri_if) | |
6513 | { | |
6514 | as_bad (_("endi without matching if")); | |
6515 | ignore_rest_of_line (); | |
6516 | return; | |
6517 | } | |
6518 | ||
6519 | /* ignore_input will not return true for ENDI, so we don't need to | |
6520 | worry about checking it again here. */ | |
6521 | ||
6522 | if (! mri_control_stack->else_seen) | |
6523 | colon (mri_control_stack->next); | |
6524 | colon (mri_control_stack->bottom); | |
6525 | ||
6526 | pop_mri_control (); | |
6527 | ||
6528 | if (flag_mri) | |
6529 | { | |
6530 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6531 | ++input_line_pointer; | |
6532 | } | |
6533 | ||
6534 | demand_empty_rest_of_line (); | |
6535 | } | |
6536 | ||
6537 | /* Handle the MRI BREAK pseudo-op. */ | |
6538 | ||
6539 | static void | |
31302357 | 6540 | s_mri_break (int extent) |
252b5132 RH |
6541 | { |
6542 | struct mri_control_info *n; | |
6543 | char *buf; | |
6544 | char ex[2]; | |
6545 | ||
6546 | n = mri_control_stack; | |
6547 | while (n != NULL | |
6548 | && n->type != mri_for | |
6549 | && n->type != mri_repeat | |
6550 | && n->type != mri_while) | |
6551 | n = n->outer; | |
6552 | if (n == NULL) | |
6553 | { | |
6554 | as_bad (_("break outside of structured loop")); | |
6555 | ignore_rest_of_line (); | |
6556 | return; | |
6557 | } | |
6558 | ||
6559 | buf = (char *) xmalloc (20 + strlen (n->bottom)); | |
3882b010 | 6560 | ex[0] = TOLOWER (extent); |
252b5132 RH |
6561 | ex[1] = '\0'; |
6562 | sprintf (buf, "bra%s %s", ex, n->bottom); | |
6563 | mri_assemble (buf); | |
6564 | free (buf); | |
6565 | ||
6566 | if (flag_mri) | |
6567 | { | |
6568 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6569 | ++input_line_pointer; | |
6570 | } | |
6571 | ||
6572 | demand_empty_rest_of_line (); | |
6573 | } | |
6574 | ||
6575 | /* Handle the MRI NEXT pseudo-op. */ | |
6576 | ||
6577 | static void | |
31302357 | 6578 | s_mri_next (int extent) |
252b5132 RH |
6579 | { |
6580 | struct mri_control_info *n; | |
6581 | char *buf; | |
6582 | char ex[2]; | |
6583 | ||
6584 | n = mri_control_stack; | |
6585 | while (n != NULL | |
6586 | && n->type != mri_for | |
6587 | && n->type != mri_repeat | |
6588 | && n->type != mri_while) | |
6589 | n = n->outer; | |
6590 | if (n == NULL) | |
6591 | { | |
6592 | as_bad (_("next outside of structured loop")); | |
6593 | ignore_rest_of_line (); | |
6594 | return; | |
6595 | } | |
6596 | ||
6597 | buf = (char *) xmalloc (20 + strlen (n->next)); | |
3882b010 | 6598 | ex[0] = TOLOWER (extent); |
252b5132 RH |
6599 | ex[1] = '\0'; |
6600 | sprintf (buf, "bra%s %s", ex, n->next); | |
6601 | mri_assemble (buf); | |
6602 | free (buf); | |
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 FOR pseudo-op. */ | |
6614 | ||
6615 | static void | |
31302357 | 6616 | s_mri_for (int qual) |
252b5132 RH |
6617 | { |
6618 | const char *varstart, *varstop; | |
6619 | const char *initstart, *initstop; | |
6620 | const char *endstart, *endstop; | |
6621 | const char *bystart, *bystop; | |
6622 | int up; | |
6623 | int by; | |
6624 | int extent; | |
6625 | struct mri_control_info *n; | |
6626 | char *buf; | |
6627 | char *s; | |
6628 | char ex[2]; | |
6629 | ||
6630 | /* The syntax is | |
6631 | FOR.q var = init { TO | DOWNTO } end [ BY by ] DO.e | |
6632 | */ | |
6633 | ||
6634 | SKIP_WHITESPACE (); | |
6635 | varstart = input_line_pointer; | |
6636 | ||
6637 | /* Look for the '='. */ | |
6638 | while (! is_end_of_line[(unsigned char) *input_line_pointer] | |
6639 | && *input_line_pointer != '=') | |
6640 | ++input_line_pointer; | |
6641 | if (*input_line_pointer != '=') | |
6642 | { | |
6643 | as_bad (_("missing =")); | |
6644 | ignore_rest_of_line (); | |
6645 | return; | |
6646 | } | |
6647 | ||
6648 | varstop = input_line_pointer; | |
6649 | if (varstop > varstart | |
6650 | && (varstop[-1] == ' ' || varstop[-1] == '\t')) | |
6651 | --varstop; | |
6652 | ||
6653 | ++input_line_pointer; | |
6654 | ||
6655 | initstart = input_line_pointer; | |
6656 | ||
6657 | /* Look for TO or DOWNTO. */ | |
6658 | up = 1; | |
6659 | initstop = NULL; | |
6660 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6661 | { | |
6662 | if (strncasecmp (input_line_pointer, "TO", 2) == 0 | |
6663 | && ! is_part_of_name (input_line_pointer[2])) | |
6664 | { | |
6665 | initstop = input_line_pointer; | |
6666 | input_line_pointer += 2; | |
6667 | break; | |
6668 | } | |
6669 | if (strncasecmp (input_line_pointer, "DOWNTO", 6) == 0 | |
6670 | && ! is_part_of_name (input_line_pointer[6])) | |
6671 | { | |
6672 | initstop = input_line_pointer; | |
6673 | up = 0; | |
6674 | input_line_pointer += 6; | |
6675 | break; | |
6676 | } | |
6677 | ++input_line_pointer; | |
6678 | } | |
6679 | if (initstop == NULL) | |
6680 | { | |
6681 | as_bad (_("missing to or downto")); | |
6682 | ignore_rest_of_line (); | |
6683 | return; | |
6684 | } | |
6685 | if (initstop > initstart | |
6686 | && (initstop[-1] == ' ' || initstop[-1] == '\t')) | |
6687 | --initstop; | |
6688 | ||
6689 | SKIP_WHITESPACE (); | |
6690 | endstart = input_line_pointer; | |
6691 | ||
6692 | /* Look for BY or DO. */ | |
6693 | by = 0; | |
6694 | endstop = NULL; | |
6695 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6696 | { | |
6697 | if (strncasecmp (input_line_pointer, "BY", 2) == 0 | |
6698 | && ! is_part_of_name (input_line_pointer[2])) | |
6699 | { | |
6700 | endstop = input_line_pointer; | |
6701 | by = 1; | |
6702 | input_line_pointer += 2; | |
6703 | break; | |
6704 | } | |
6705 | if (strncasecmp (input_line_pointer, "DO", 2) == 0 | |
6706 | && (input_line_pointer[2] == '.' | |
6707 | || ! is_part_of_name (input_line_pointer[2]))) | |
6708 | { | |
6709 | endstop = input_line_pointer; | |
6710 | input_line_pointer += 2; | |
6711 | break; | |
6712 | } | |
6713 | ++input_line_pointer; | |
6714 | } | |
6715 | if (endstop == NULL) | |
6716 | { | |
6717 | as_bad (_("missing do")); | |
6718 | ignore_rest_of_line (); | |
6719 | return; | |
6720 | } | |
6721 | if (endstop > endstart | |
6722 | && (endstop[-1] == ' ' || endstop[-1] == '\t')) | |
6723 | --endstop; | |
6724 | ||
6725 | if (! by) | |
6726 | { | |
6727 | bystart = "#1"; | |
6728 | bystop = bystart + 2; | |
6729 | } | |
6730 | else | |
6731 | { | |
6732 | SKIP_WHITESPACE (); | |
6733 | bystart = input_line_pointer; | |
6734 | ||
6735 | /* Look for DO. */ | |
6736 | bystop = NULL; | |
6737 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6738 | { | |
6739 | if (strncasecmp (input_line_pointer, "DO", 2) == 0 | |
6740 | && (input_line_pointer[2] == '.' | |
6741 | || ! is_part_of_name (input_line_pointer[2]))) | |
6742 | { | |
6743 | bystop = input_line_pointer; | |
6744 | input_line_pointer += 2; | |
6745 | break; | |
6746 | } | |
6747 | ++input_line_pointer; | |
6748 | } | |
6749 | if (bystop == NULL) | |
6750 | { | |
6751 | as_bad (_("missing do")); | |
6752 | ignore_rest_of_line (); | |
6753 | return; | |
6754 | } | |
6755 | if (bystop > bystart | |
6756 | && (bystop[-1] == ' ' || bystop[-1] == '\t')) | |
6757 | --bystop; | |
6758 | } | |
6759 | ||
6760 | if (*input_line_pointer != '.') | |
6761 | extent = '\0'; | |
6762 | else | |
6763 | { | |
6764 | extent = input_line_pointer[1]; | |
6765 | input_line_pointer += 2; | |
6766 | } | |
6767 | ||
6768 | /* We have fully parsed the FOR operands. Now build the loop. */ | |
252b5132 RH |
6769 | n = push_mri_control (mri_for); |
6770 | ||
6771 | buf = (char *) xmalloc (50 + (input_line_pointer - varstart)); | |
6772 | ||
36759679 | 6773 | /* Move init,var. */ |
252b5132 RH |
6774 | s = buf; |
6775 | *s++ = 'm'; | |
6776 | *s++ = 'o'; | |
6777 | *s++ = 'v'; | |
6778 | *s++ = 'e'; | |
6779 | if (qual != '\0') | |
3882b010 | 6780 | *s++ = TOLOWER (qual); |
252b5132 RH |
6781 | *s++ = ' '; |
6782 | memcpy (s, initstart, initstop - initstart); | |
6783 | s += initstop - initstart; | |
6784 | *s++ = ','; | |
6785 | memcpy (s, varstart, varstop - varstart); | |
6786 | s += varstop - varstart; | |
6787 | *s = '\0'; | |
6788 | mri_assemble (buf); | |
6789 | ||
6790 | colon (n->top); | |
6791 | ||
36759679 | 6792 | /* cmp end,var. */ |
252b5132 RH |
6793 | s = buf; |
6794 | *s++ = 'c'; | |
6795 | *s++ = 'm'; | |
6796 | *s++ = 'p'; | |
6797 | if (qual != '\0') | |
3882b010 | 6798 | *s++ = TOLOWER (qual); |
252b5132 RH |
6799 | *s++ = ' '; |
6800 | memcpy (s, endstart, endstop - endstart); | |
6801 | s += endstop - endstart; | |
6802 | *s++ = ','; | |
6803 | memcpy (s, varstart, varstop - varstart); | |
6804 | s += varstop - varstart; | |
6805 | *s = '\0'; | |
6806 | mri_assemble (buf); | |
6807 | ||
36759679 | 6808 | /* bcc bottom. */ |
3882b010 | 6809 | ex[0] = TOLOWER (extent); |
252b5132 RH |
6810 | ex[1] = '\0'; |
6811 | if (up) | |
6812 | sprintf (buf, "blt%s %s", ex, n->bottom); | |
6813 | else | |
6814 | sprintf (buf, "bgt%s %s", ex, n->bottom); | |
6815 | mri_assemble (buf); | |
6816 | ||
6817 | /* Put together the add or sub instruction used by ENDF. */ | |
6818 | s = buf; | |
6819 | if (up) | |
6820 | strcpy (s, "add"); | |
6821 | else | |
6822 | strcpy (s, "sub"); | |
6823 | s += 3; | |
6824 | if (qual != '\0') | |
3882b010 | 6825 | *s++ = TOLOWER (qual); |
252b5132 RH |
6826 | *s++ = ' '; |
6827 | memcpy (s, bystart, bystop - bystart); | |
6828 | s += bystop - bystart; | |
6829 | *s++ = ','; | |
6830 | memcpy (s, varstart, varstop - varstart); | |
6831 | s += varstop - varstart; | |
6832 | *s = '\0'; | |
6833 | n->incr = buf; | |
6834 | ||
6835 | if (flag_mri) | |
6836 | { | |
6837 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6838 | ++input_line_pointer; | |
6839 | } | |
6840 | ||
6841 | demand_empty_rest_of_line (); | |
6842 | } | |
6843 | ||
6844 | /* Handle the MRI ENDF pseudo-op. */ | |
6845 | ||
6846 | static void | |
31302357 | 6847 | s_mri_endf (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
6848 | { |
6849 | if (mri_control_stack == NULL | |
6850 | || mri_control_stack->type != mri_for) | |
6851 | { | |
6852 | as_bad (_("endf without for")); | |
6853 | ignore_rest_of_line (); | |
6854 | return; | |
6855 | } | |
6856 | ||
6857 | colon (mri_control_stack->next); | |
6858 | ||
6859 | mri_assemble (mri_control_stack->incr); | |
6860 | ||
6861 | sprintf (mri_control_stack->incr, "bra %s", mri_control_stack->top); | |
6862 | mri_assemble (mri_control_stack->incr); | |
6863 | ||
6864 | free (mri_control_stack->incr); | |
6865 | ||
6866 | colon (mri_control_stack->bottom); | |
6867 | ||
6868 | pop_mri_control (); | |
6869 | ||
6870 | if (flag_mri) | |
6871 | { | |
6872 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6873 | ++input_line_pointer; | |
6874 | } | |
6875 | ||
6876 | demand_empty_rest_of_line (); | |
6877 | } | |
6878 | ||
6879 | /* Handle the MRI REPEAT pseudo-op. */ | |
6880 | ||
6881 | static void | |
31302357 | 6882 | s_mri_repeat (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
6883 | { |
6884 | struct mri_control_info *n; | |
6885 | ||
6886 | n = push_mri_control (mri_repeat); | |
6887 | colon (n->top); | |
6888 | if (flag_mri) | |
6889 | { | |
6890 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6891 | ++input_line_pointer; | |
6892 | } | |
6893 | demand_empty_rest_of_line (); | |
6894 | } | |
6895 | ||
6896 | /* Handle the MRI UNTIL pseudo-op. */ | |
6897 | ||
6898 | static void | |
31302357 | 6899 | s_mri_until (int qual) |
252b5132 RH |
6900 | { |
6901 | char *s; | |
6902 | ||
6903 | if (mri_control_stack == NULL | |
6904 | || mri_control_stack->type != mri_repeat) | |
6905 | { | |
6906 | as_bad (_("until without repeat")); | |
6907 | ignore_rest_of_line (); | |
6908 | return; | |
6909 | } | |
6910 | ||
6911 | colon (mri_control_stack->next); | |
6912 | ||
6913 | for (s = input_line_pointer; ! is_end_of_line[(unsigned char) *s]; s++) | |
6914 | ; | |
6915 | ||
6916 | parse_mri_control_expression (s, qual, (const char *) NULL, | |
6917 | mri_control_stack->top, '\0'); | |
6918 | ||
6919 | colon (mri_control_stack->bottom); | |
6920 | ||
6921 | input_line_pointer = s; | |
6922 | ||
6923 | pop_mri_control (); | |
6924 | ||
6925 | if (flag_mri) | |
6926 | { | |
6927 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6928 | ++input_line_pointer; | |
6929 | } | |
6930 | ||
6931 | demand_empty_rest_of_line (); | |
6932 | } | |
6933 | ||
6934 | /* Handle the MRI WHILE pseudo-op. */ | |
6935 | ||
6936 | static void | |
31302357 | 6937 | s_mri_while (int qual) |
252b5132 RH |
6938 | { |
6939 | char *s; | |
6940 | ||
6941 | struct mri_control_info *n; | |
6942 | ||
6943 | s = input_line_pointer; | |
e1f44d10 NC |
6944 | /* We only accept '*' as introduction of comments if preceded by white space |
6945 | or at first column of a line (I think this can't actually happen here?) | |
6946 | This is important when assembling: | |
6947 | while d0 <ne> 12(a0,d0*2) do | |
36759679 | 6948 | while d0 <ne> #CONST*20 do. */ |
8a104df9 KH |
6949 | while (! (is_end_of_line[(unsigned char) *s] |
6950 | || (flag_mri | |
6951 | && *s == '*' | |
6952 | && (s == input_line_pointer | |
6953 | || *(s-1) == ' ' | |
6954 | || *(s-1) == '\t')))) | |
252b5132 RH |
6955 | s++; |
6956 | --s; | |
6957 | while (*s == ' ' || *s == '\t') | |
6958 | --s; | |
6959 | if (s - input_line_pointer > 1 | |
6960 | && s[-1] == '.') | |
6961 | s -= 2; | |
6962 | if (s - input_line_pointer < 2 | |
6963 | || strncasecmp (s - 1, "DO", 2) != 0) | |
6964 | { | |
6965 | as_bad (_("missing do")); | |
6966 | ignore_rest_of_line (); | |
6967 | return; | |
6968 | } | |
6969 | ||
6970 | n = push_mri_control (mri_while); | |
6971 | ||
6972 | colon (n->next); | |
6973 | ||
6974 | parse_mri_control_expression (s - 1, qual, (const char *) NULL, n->bottom, | |
6975 | s[1] == '.' ? s[2] : '\0'); | |
6976 | ||
6977 | input_line_pointer = s + 1; | |
6978 | if (*input_line_pointer == '.') | |
6979 | input_line_pointer += 2; | |
6980 | ||
6981 | if (flag_mri) | |
6982 | { | |
6983 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
6984 | ++input_line_pointer; | |
6985 | } | |
6986 | ||
6987 | demand_empty_rest_of_line (); | |
6988 | } | |
6989 | ||
6990 | /* Handle the MRI ENDW pseudo-op. */ | |
6991 | ||
6992 | static void | |
31302357 | 6993 | s_mri_endw (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
6994 | { |
6995 | char *buf; | |
6996 | ||
6997 | if (mri_control_stack == NULL | |
6998 | || mri_control_stack->type != mri_while) | |
6999 | { | |
7000 | as_bad (_("endw without while")); | |
7001 | ignore_rest_of_line (); | |
7002 | return; | |
7003 | } | |
7004 | ||
7005 | buf = (char *) xmalloc (20 + strlen (mri_control_stack->next)); | |
7006 | sprintf (buf, "bra %s", mri_control_stack->next); | |
7007 | mri_assemble (buf); | |
7008 | free (buf); | |
7009 | ||
7010 | colon (mri_control_stack->bottom); | |
7011 | ||
7012 | pop_mri_control (); | |
7013 | ||
7014 | if (flag_mri) | |
7015 | { | |
7016 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
7017 | ++input_line_pointer; | |
7018 | } | |
7019 | ||
7020 | demand_empty_rest_of_line (); | |
7021 | } | |
7022 | \f | |
31302357 AS |
7023 | /* md_parse_option |
7024 | Invocation line includes a switch not recognized by the base assembler. | |
7025 | See if it's a processor-specific option. These are: | |
7026 | ||
7027 | -[A]m[c]68000, -[A]m[c]68008, -[A]m[c]68010, -[A]m[c]68020, -[A]m[c]68030, -[A]m[c]68040 | |
7028 | -[A]m[c]68881, -[A]m[c]68882, -[A]m[c]68851 | |
7029 | Select the architecture. Instructions or features not | |
7030 | supported by the selected architecture cause fatal | |
7031 | errors. More than one may be specified. The default is | |
7032 | -m68020 -m68851 -m68881. Note that -m68008 is a synonym | |
7033 | for -m68000, and -m68882 is a synonym for -m68881. | |
7034 | -[A]m[c]no-68851, -[A]m[c]no-68881 | |
7035 | Don't accept 688?1 instructions. (The "c" is kind of silly, | |
7036 | so don't use or document it, but that's the way the parsing | |
7037 | works). | |
7038 | ||
7039 | -pic Indicates PIC. | |
7040 | -k Indicates PIC. (Sun 3 only.) | |
7041 | --pcrel | |
7042 | Never turn PC-relative branches into absolute jumps. | |
7043 | --bitwise-or | |
7044 | Permit `|' to be used in expressions. */ | |
252b5132 RH |
7045 | |
7046 | #ifdef OBJ_ELF | |
5a38dc70 | 7047 | const char *md_shortopts = "lSA:m:kQ:V"; |
252b5132 | 7048 | #else |
5a38dc70 | 7049 | const char *md_shortopts = "lSA:m:k"; |
252b5132 RH |
7050 | #endif |
7051 | ||
7052 | struct option md_longopts[] = { | |
7053 | #define OPTION_PIC (OPTION_MD_BASE) | |
7054 | {"pic", no_argument, NULL, OPTION_PIC}, | |
7055 | #define OPTION_REGISTER_PREFIX_OPTIONAL (OPTION_MD_BASE + 1) | |
7056 | {"register-prefix-optional", no_argument, NULL, | |
7057 | OPTION_REGISTER_PREFIX_OPTIONAL}, | |
7058 | #define OPTION_BITWISE_OR (OPTION_MD_BASE + 2) | |
7059 | {"bitwise-or", no_argument, NULL, OPTION_BITWISE_OR}, | |
7060 | #define OPTION_BASE_SIZE_DEFAULT_16 (OPTION_MD_BASE + 3) | |
7061 | {"base-size-default-16", no_argument, NULL, OPTION_BASE_SIZE_DEFAULT_16}, | |
7062 | #define OPTION_BASE_SIZE_DEFAULT_32 (OPTION_MD_BASE + 4) | |
7063 | {"base-size-default-32", no_argument, NULL, OPTION_BASE_SIZE_DEFAULT_32}, | |
7064 | #define OPTION_DISP_SIZE_DEFAULT_16 (OPTION_MD_BASE + 5) | |
7065 | {"disp-size-default-16", no_argument, NULL, OPTION_DISP_SIZE_DEFAULT_16}, | |
7066 | #define OPTION_DISP_SIZE_DEFAULT_32 (OPTION_MD_BASE + 6) | |
7067 | {"disp-size-default-32", no_argument, NULL, OPTION_DISP_SIZE_DEFAULT_32}, | |
28e7409f NC |
7068 | #define OPTION_PCREL (OPTION_MD_BASE + 7) |
7069 | {"pcrel", no_argument, NULL, OPTION_PCREL}, | |
252b5132 RH |
7070 | {NULL, no_argument, NULL, 0} |
7071 | }; | |
bc805888 | 7072 | size_t md_longopts_size = sizeof (md_longopts); |
252b5132 RH |
7073 | |
7074 | int | |
31302357 | 7075 | md_parse_option (int c, char *arg) |
252b5132 RH |
7076 | { |
7077 | switch (c) | |
7078 | { | |
7079 | case 'l': /* -l means keep external to 2 bit offset | |
36759679 | 7080 | rather than 16 bit one. */ |
252b5132 RH |
7081 | flag_short_refs = 1; |
7082 | break; | |
7083 | ||
7084 | case 'S': /* -S means that jbsr's always turn into | |
7085 | jsr's. */ | |
7086 | flag_long_jumps = 1; | |
7087 | break; | |
7088 | ||
28e7409f NC |
7089 | case OPTION_PCREL: /* --pcrel means never turn PC-relative |
7090 | branches into absolute jumps. */ | |
7091 | flag_keep_pcrel = 1; | |
7092 | break; | |
7093 | ||
252b5132 RH |
7094 | case 'A': |
7095 | if (*arg == 'm') | |
8a104df9 | 7096 | arg++; |
36759679 | 7097 | /* Intentional fall-through. */ |
252b5132 RH |
7098 | case 'm': |
7099 | ||
7100 | if (arg[0] == 'n' && arg[1] == 'o' && arg[2] == '-') | |
7101 | { | |
7102 | int i; | |
7103 | unsigned long arch; | |
252b5132 RH |
7104 | |
7105 | arg += 3; | |
7106 | if (*arg == 'm') | |
7107 | { | |
7108 | arg++; | |
7109 | if (arg[0] == 'c' && arg[1] == '6') | |
7110 | arg++; | |
7111 | } | |
7112 | for (i = 0; i < n_archs; i++) | |
7113 | if (!strcmp (arg, archs[i].name)) | |
7114 | break; | |
7115 | if (i == n_archs) | |
329e276d NC |
7116 | return 0; |
7117 | ||
252b5132 RH |
7118 | arch = archs[i].arch; |
7119 | if (arch == m68881) | |
7120 | no_68881 = 1; | |
7121 | else if (arch == m68851) | |
7122 | no_68851 = 1; | |
7123 | else | |
329e276d | 7124 | return 0; |
252b5132 RH |
7125 | } |
7126 | else | |
7127 | { | |
7128 | int i; | |
7129 | ||
7130 | if (arg[0] == 'c' && arg[1] == '6') | |
7131 | arg++; | |
7132 | ||
7133 | for (i = 0; i < n_archs; i++) | |
7134 | if (!strcmp (arg, archs[i].name)) | |
7135 | { | |
7136 | unsigned long arch = archs[i].arch; | |
329e276d | 7137 | |
252b5132 RH |
7138 | if (cpu_of_arch (arch)) |
7139 | /* It's a cpu spec. */ | |
7140 | { | |
7141 | current_architecture &= ~m68000up; | |
7142 | current_architecture |= arch; | |
990ae22a | 7143 | current_chip = archs[i].chip; |
252b5132 RH |
7144 | } |
7145 | else if (arch == m68881) | |
7146 | { | |
7147 | current_architecture |= m68881; | |
7148 | no_68881 = 0; | |
7149 | } | |
7150 | else if (arch == m68851) | |
7151 | { | |
7152 | current_architecture |= m68851; | |
7153 | no_68851 = 0; | |
7154 | } | |
7155 | else | |
7156 | /* ??? */ | |
7157 | abort (); | |
7158 | break; | |
7159 | } | |
7160 | if (i == n_archs) | |
7161 | { | |
7162 | as_bad (_("unrecognized architecture specification `%s'"), arg); | |
7163 | return 0; | |
7164 | } | |
7165 | } | |
7166 | break; | |
7167 | ||
7168 | case OPTION_PIC: | |
7169 | case 'k': | |
7170 | flag_want_pic = 1; | |
36759679 | 7171 | break; /* -pic, Position Independent Code. */ |
252b5132 RH |
7172 | |
7173 | case OPTION_REGISTER_PREFIX_OPTIONAL: | |
7174 | flag_reg_prefix_optional = 1; | |
7175 | reg_prefix_optional_seen = 1; | |
7176 | break; | |
7177 | ||
7178 | /* -V: SVR4 argument to print version ID. */ | |
7179 | case 'V': | |
7180 | print_version_id (); | |
7181 | break; | |
7182 | ||
7183 | /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section | |
7184 | should be emitted or not. FIXME: Not implemented. */ | |
7185 | case 'Q': | |
7186 | break; | |
7187 | ||
7188 | case OPTION_BITWISE_OR: | |
7189 | { | |
7190 | char *n, *t; | |
7191 | const char *s; | |
7192 | ||
7193 | n = (char *) xmalloc (strlen (m68k_comment_chars) + 1); | |
7194 | t = n; | |
7195 | for (s = m68k_comment_chars; *s != '\0'; s++) | |
7196 | if (*s != '|') | |
7197 | *t++ = *s; | |
7198 | *t = '\0'; | |
7199 | m68k_comment_chars = n; | |
7200 | } | |
7201 | break; | |
7202 | ||
7203 | case OPTION_BASE_SIZE_DEFAULT_16: | |
7204 | m68k_index_width_default = SIZE_WORD; | |
7205 | break; | |
7206 | ||
7207 | case OPTION_BASE_SIZE_DEFAULT_32: | |
7208 | m68k_index_width_default = SIZE_LONG; | |
7209 | break; | |
7210 | ||
7211 | case OPTION_DISP_SIZE_DEFAULT_16: | |
7212 | m68k_rel32 = 0; | |
7213 | m68k_rel32_from_cmdline = 1; | |
7214 | break; | |
7215 | ||
7216 | case OPTION_DISP_SIZE_DEFAULT_32: | |
7217 | m68k_rel32 = 1; | |
7218 | m68k_rel32_from_cmdline = 1; | |
7219 | break; | |
7220 | ||
7221 | default: | |
7222 | return 0; | |
7223 | } | |
7224 | ||
7225 | return 1; | |
7226 | } | |
7227 | ||
7228 | void | |
31302357 | 7229 | md_show_usage (FILE *stream) |
252b5132 | 7230 | { |
76f57f3a | 7231 | const char *default_cpu = TARGET_CPU; |
f1f5ef86 AM |
7232 | int i; |
7233 | unsigned int default_arch; | |
76f57f3a | 7234 | |
8a104df9 | 7235 | /* Get the canonical name for the default target CPU. */ |
76f57f3a JT |
7236 | if (*default_cpu == 'm') |
7237 | default_cpu++; | |
7238 | for (i = 0; i < n_archs; i++) | |
7239 | { | |
7240 | if (strcasecmp (default_cpu, archs[i].name) == 0) | |
7241 | { | |
7242 | default_arch = archs[i].arch; | |
7243 | for (i = 0; i < n_archs; i++) | |
7244 | { | |
7245 | if (archs[i].arch == default_arch | |
7246 | && !archs[i].alias) | |
7247 | { | |
7248 | default_cpu = archs[i].name; | |
7249 | break; | |
7250 | } | |
7251 | } | |
7252 | } | |
7253 | } | |
7254 | ||
bc805888 | 7255 | fprintf (stream, _("\ |
252b5132 RH |
7256 | 680X0 options:\n\ |
7257 | -l use 1 word for refs to undefined symbols [default 2]\n\ | |
98b32482 NC |
7258 | -m68000 | -m68008 | -m68010 | -m68020 | -m68030 | -m68040 | -m68060 |\n\ |
7259 | -m68302 | -m68331 | -m68332 | -m68333 | -m68340 | -m68360 | -mcpu32 |\n\ | |
6b6e92f4 NC |
7260 | -m5200 | -m5202 | -m5204 | -m5206 | -m5206e | -m521x | -m5249 |\n\ |
7261 | -m528x | -m5307 | -m5407 | -m547x | -m548x | -mcfv4 | -mcfv4e\n\ | |
76f57f3a | 7262 | specify variant of 680X0 architecture [default %s]\n\ |
252b5132 RH |
7263 | -m68881 | -m68882 | -mno-68881 | -mno-68882\n\ |
7264 | target has/lacks floating-point coprocessor\n\ | |
76f57f3a JT |
7265 | [default yes for 68020, 68030, and cpu32]\n"), |
7266 | default_cpu); | |
bc805888 | 7267 | fprintf (stream, _("\ |
252b5132 RH |
7268 | -m68851 | -mno-68851\n\ |
7269 | target has/lacks memory-management unit coprocessor\n\ | |
7270 | [default yes for 68020 and up]\n\ | |
7271 | -pic, -k generate position independent code\n\ | |
7272 | -S turn jbsr into jsr\n\ | |
28e7409f | 7273 | --pcrel never turn PC-relative branches into absolute jumps\n\ |
252b5132 RH |
7274 | --register-prefix-optional\n\ |
7275 | recognize register names without prefix character\n\ | |
7276 | --bitwise-or do not treat `|' as a comment character\n")); | |
7277 | fprintf (stream, _("\ | |
7278 | --base-size-default-16 base reg without size is 16 bits\n\ | |
7279 | --base-size-default-32 base reg without size is 32 bits (default)\n\ | |
7280 | --disp-size-default-16 displacement with unknown size is 16 bits\n\ | |
7281 | --disp-size-default-32 displacement with unknown size is 32 bits (default)\n")); | |
7282 | } | |
7283 | \f | |
7284 | #ifdef TEST2 | |
7285 | ||
7286 | /* TEST2: Test md_assemble() */ | |
36759679 NC |
7287 | /* Warning, this routine probably doesn't work anymore. */ |
7288 | int | |
31302357 | 7289 | main (void) |
252b5132 RH |
7290 | { |
7291 | struct m68k_it the_ins; | |
7292 | char buf[120]; | |
7293 | char *cp; | |
7294 | int n; | |
7295 | ||
7296 | m68k_ip_begin (); | |
7297 | for (;;) | |
7298 | { | |
7299 | if (!gets (buf) || !*buf) | |
7300 | break; | |
7301 | if (buf[0] == '|' || buf[1] == '.') | |
7302 | continue; | |
7303 | for (cp = buf; *cp; cp++) | |
7304 | if (*cp == '\t') | |
7305 | *cp = ' '; | |
7306 | if (is_label (buf)) | |
7307 | continue; | |
7308 | memset (&the_ins, '\0', sizeof (the_ins)); | |
7309 | m68k_ip (&the_ins, buf); | |
7310 | if (the_ins.error) | |
7311 | { | |
7312 | printf (_("Error %s in %s\n"), the_ins.error, buf); | |
7313 | } | |
7314 | else | |
7315 | { | |
7316 | printf (_("Opcode(%d.%s): "), the_ins.numo, the_ins.args); | |
7317 | for (n = 0; n < the_ins.numo; n++) | |
7318 | printf (" 0x%x", the_ins.opcode[n] & 0xffff); | |
7319 | printf (" "); | |
7320 | print_the_insn (&the_ins.opcode[0], stdout); | |
7321 | (void) putchar ('\n'); | |
7322 | } | |
7323 | for (n = 0; n < strlen (the_ins.args) / 2; n++) | |
7324 | { | |
7325 | if (the_ins.operands[n].error) | |
7326 | { | |
7327 | printf ("op%d Error %s in %s\n", n, the_ins.operands[n].error, buf); | |
7328 | continue; | |
7329 | } | |
31302357 AS |
7330 | printf ("mode %d, reg %d, ", the_ins.operands[n].mode, |
7331 | the_ins.operands[n].reg); | |
252b5132 | 7332 | if (the_ins.operands[n].b_const) |
31302357 AS |
7333 | printf ("Constant: '%.*s', ", |
7334 | 1 + the_ins.operands[n].e_const - the_ins.operands[n].b_const, | |
7335 | the_ins.operands[n].b_const); | |
7336 | printf ("ireg %d, isiz %d, imul %d, ", the_ins.operands[n].ireg, | |
7337 | the_ins.operands[n].isiz, the_ins.operands[n].imul); | |
252b5132 | 7338 | if (the_ins.operands[n].b_iadd) |
31302357 AS |
7339 | printf ("Iadd: '%.*s',", |
7340 | 1 + the_ins.operands[n].e_iadd - the_ins.operands[n].b_iadd, | |
7341 | the_ins.operands[n].b_iadd); | |
7342 | putchar ('\n'); | |
252b5132 RH |
7343 | } |
7344 | } | |
7345 | m68k_ip_end (); | |
7346 | return 0; | |
7347 | } | |
7348 | ||
31302357 AS |
7349 | int |
7350 | is_label (char *str) | |
252b5132 RH |
7351 | { |
7352 | while (*str == ' ') | |
7353 | str++; | |
7354 | while (*str && *str != ' ') | |
7355 | str++; | |
7356 | if (str[-1] == ':' || str[1] == '=') | |
7357 | return 1; | |
7358 | return 0; | |
7359 | } | |
7360 | ||
7361 | #endif | |
7362 | ||
7363 | /* Possible states for relaxation: | |
7364 | ||
7365 | 0 0 branch offset byte (bra, etc) | |
7366 | 0 1 word | |
7367 | 0 2 long | |
7368 | ||
7369 | 1 0 indexed offsets byte a0@(32,d4:w:1) etc | |
7370 | 1 1 word | |
7371 | 1 2 long | |
7372 | ||
7373 | 2 0 two-offset index word-word a0@(32,d4)@(45) etc | |
7374 | 2 1 word-long | |
7375 | 2 2 long-word | |
7376 | 2 3 long-long | |
7377 | ||
7378 | */ | |
7379 | ||
7380 | /* We have no need to default values of symbols. */ | |
7381 | ||
252b5132 | 7382 | symbolS * |
31302357 | 7383 | md_undefined_symbol (char *name ATTRIBUTE_UNUSED) |
252b5132 RH |
7384 | { |
7385 | return 0; | |
7386 | } | |
7387 | ||
7388 | /* Round up a section size to the appropriate boundary. */ | |
7389 | valueT | |
31302357 | 7390 | md_section_align (segT segment ATTRIBUTE_UNUSED, valueT size) |
252b5132 RH |
7391 | { |
7392 | #ifdef OBJ_AOUT | |
7393 | #ifdef BFD_ASSEMBLER | |
7394 | /* For a.out, force the section size to be aligned. If we don't do | |
7395 | this, BFD will align it for us, but it will not write out the | |
7396 | final bytes of the section. This may be a bug in BFD, but it is | |
7397 | easier to fix it here since that is how the other a.out targets | |
7398 | work. */ | |
7399 | int align; | |
7400 | ||
7401 | align = bfd_get_section_alignment (stdoutput, segment); | |
7402 | size = ((size + (1 << align) - 1) & ((valueT) -1 << align)); | |
7403 | #endif | |
7404 | #endif | |
7405 | ||
7406 | return size; | |
7407 | } | |
7408 | ||
7409 | /* Exactly what point is a PC-relative offset relative TO? | |
7410 | On the 68k, it is relative to the address of the first extension | |
7411 | word. The difference between the addresses of the offset and the | |
92774660 | 7412 | first extension word is stored in fx_pcrel_adjust. */ |
252b5132 | 7413 | long |
31302357 | 7414 | md_pcrel_from (fixS *fixP) |
252b5132 RH |
7415 | { |
7416 | int adjust; | |
7417 | ||
8390138c AS |
7418 | /* Because fx_pcrel_adjust is a char, and may be unsigned, we explicitly |
7419 | sign extend the value here. */ | |
7420 | adjust = ((fixP->fx_pcrel_adjust & 0xff) ^ 0x80) - 0x80; | |
252b5132 RH |
7421 | if (adjust == 64) |
7422 | adjust = -1; | |
7423 | return fixP->fx_where + fixP->fx_frag->fr_address - adjust; | |
7424 | } | |
7425 | ||
7426 | #ifndef BFD_ASSEMBLER | |
7427 | #ifdef OBJ_COFF | |
7428 | ||
252b5132 | 7429 | void |
31302357 | 7430 | tc_coff_symbol_emit_hook (symbolS *ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
7431 | { |
7432 | } | |
7433 | ||
7434 | int | |
31302357 | 7435 | tc_coff_sizemachdep (fragS *frag) |
252b5132 RH |
7436 | { |
7437 | switch (frag->fr_subtype & 0x3) | |
7438 | { | |
7439 | case BYTE: | |
7440 | return 1; | |
7441 | case SHORT: | |
7442 | return 2; | |
7443 | case LONG: | |
7444 | return 4; | |
7445 | default: | |
7446 | abort (); | |
7447 | return 0; | |
7448 | } | |
7449 | } | |
7450 | ||
7451 | #endif | |
7452 | #endif | |
31302357 | 7453 | |
0d96863f | 7454 | #ifdef OBJ_ELF |
8a104df9 | 7455 | void |
31302357 | 7456 | m68k_elf_final_processing (void) |
0d96863f | 7457 | { |
36759679 | 7458 | /* Set file-specific flags if this is a cpu32 processor. */ |
238d258f NC |
7459 | if (arch_coldfire_fpu (current_architecture)) |
7460 | elf_elfheader (stdoutput)->e_flags |= EF_CFV4E; | |
8a104df9 KH |
7461 | if (cpu_of_arch (current_architecture) & cpu32) |
7462 | elf_elfheader (stdoutput)->e_flags |= EF_CPU32; | |
7463 | else if ((cpu_of_arch (current_architecture) & m68000up) | |
7464 | && !(cpu_of_arch (current_architecture) & m68020up)) | |
7465 | elf_elfheader (stdoutput)->e_flags |= EF_M68000; | |
0d96863f CM |
7466 | } |
7467 | #endif | |
c04898f8 AS |
7468 | |
7469 | int | |
7470 | tc_m68k_regname_to_dw2regnum (const char *regname) | |
7471 | { | |
7472 | unsigned int regnum; | |
7473 | static const char *const regnames[] = | |
7474 | { | |
7475 | "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", | |
7476 | "a0", "a1", "a2", "a3", "a4", "a5", "a6", "sp", | |
7477 | "fp0", "fp1", "fp2", "fp3", "fp4", "fp5", "fp6", "fp7", | |
7478 | "pc" | |
7479 | }; | |
7480 | ||
7481 | for (regnum = 0; regnum < ARRAY_SIZE (regnames); regnum++) | |
7482 | if (strcmp (regname, regnames[regnum]) == 0) | |
7483 | return regnum; | |
7484 | ||
7485 | return -1; | |
7486 | } | |
7487 | ||
7488 | void | |
7489 | tc_m68k_frame_initial_instructions (void) | |
7490 | { | |
7491 | static int sp_regno = -1; | |
7492 | ||
7493 | if (sp_regno < 0) | |
7494 | sp_regno = tc_m68k_regname_to_dw2regnum ("sp"); | |
7495 | ||
7496 | cfi_add_CFA_def_cfa (sp_regno, -DWARF2_CIE_DATA_ALIGNMENT); | |
7497 | cfi_add_CFA_offset (DWARF2_DEFAULT_RETURN_COLUMN, DWARF2_CIE_DATA_ALIGNMENT); | |
7498 | } |