Commit | Line | Data |
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39bec121 | 1 | /* tc-tic54x.c -- Assembly code for the Texas Instruments TMS320C54X |
5a49b8ac | 2 | Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 |
aef6203b | 3 | Free Software Foundation, Inc. |
39bec121 TW |
4 | Contributed by Timothy Wall (twall@cygnus.com) |
5 | ||
6 | This file is part of GAS, the GNU Assembler. | |
7 | ||
8 | GAS is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
ec2655a6 | 10 | the Free Software Foundation; either version 3, or (at your option) |
39bec121 TW |
11 | any later version. |
12 | ||
13 | GAS is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GAS; see the file COPYING. If not, write to the Free | |
4b4da160 NC |
20 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
21 | 02110-1301, USA. */ | |
39bec121 | 22 | |
d0313fb7 | 23 | /* Texas Instruments TMS320C54X machine specific gas. |
39bec121 TW |
24 | Written by Timothy Wall (twall@alum.mit.edu). |
25 | ||
26 | Valuable things to do: | |
27 | Pipeline conflict warnings | |
28 | We encode/decode "ld #_label, dp" differently in relocatable files | |
29 | This means we're not compatible with TI output containing those | |
30 | expressions. We store the upper nine bits; TI stores the lower nine | |
31 | bits. How they recover the original upper nine bits is beyond me. | |
32 | ||
33 | Tests to add to expect testsuite: | |
34 | '=' and '==' with .if, .elseif, and .break | |
35 | ||
36 | Incompatibilities (mostly trivial): | |
37 | We don't allow ''' | |
38 | We fill text section with zeroes instead of "nop"s | |
39 | We don't convert '' or "" to a single instance | |
40 | We don't convert '' to '\0' | |
41 | We don't allow strings with .byte/.half/.short/.long | |
42 | Probably details of the subsym stuff are different | |
6e917903 TW |
43 | TI sets labels to be data type 4 (T_INT); GAS uses T_NULL. |
44 | ||
45 | COFF1 limits section names to 8 characters. | |
f1e7a2c9 | 46 | Some of the default behavior changed from COFF1 to COFF2. */ |
39bec121 | 47 | |
39bec121 | 48 | #include <limits.h> |
39bec121 | 49 | #include "as.h" |
3882b010 | 50 | #include "safe-ctype.h" |
39bec121 TW |
51 | #include "sb.h" |
52 | #include "macro.h" | |
53 | #include "subsegs.h" | |
54 | #include "struc-symbol.h" | |
55 | #include "opcode/tic54x.h" | |
56 | #include "obj-coff.h" | |
57 | #include <math.h> | |
58 | ||
39bec121 | 59 | |
f1e7a2c9 NC |
60 | static struct stag |
61 | { | |
62 | symbolS *sym; /* Symbol for this stag; value is offset. */ | |
63 | const char *name; /* Shortcut to symbol name. */ | |
64 | bfd_vma size; /* Size of struct/union. */ | |
65 | int current_bitfield_offset; /* Temporary for tracking fields. */ | |
66 | int is_union; | |
67 | struct stag_field /* List of fields. */ | |
68 | { | |
69 | const char *name; | |
70 | bfd_vma offset; /* Of start of this field. */ | |
71 | int bitfield_offset; /* Of start of this field. */ | |
72 | struct stag *stag; /* If field is struct/union. */ | |
73 | struct stag_field *next; | |
74 | } *field; | |
75 | /* For nesting; used only in stag construction. */ | |
76 | struct stag *inner; /* Enclosed .struct. */ | |
77 | struct stag *outer; /* Enclosing .struct. */ | |
78 | } *current_stag = NULL; | |
39bec121 | 79 | |
f1e7a2c9 | 80 | #define MAX_LINE 256 /* Lines longer than this are truncated by TI's asm. */ |
9a736b6b | 81 | |
f1e7a2c9 NC |
82 | typedef struct _tic54x_insn |
83 | { | |
84 | const template *tm; /* Opcode template. */ | |
39bec121 | 85 | |
f1e7a2c9 NC |
86 | char mnemonic[MAX_LINE]; /* Opcode name/mnemonic. */ |
87 | char parmnemonic[MAX_LINE]; /* 2nd mnemonic of parallel insn. */ | |
39bec121 | 88 | |
f1e7a2c9 NC |
89 | int opcount; |
90 | struct opstruct | |
91 | { | |
92 | char buf[MAX_LINE]; | |
93 | enum optype type; | |
94 | expressionS exp; | |
95 | } operands[MAX_OPERANDS]; | |
39bec121 | 96 | |
f1e7a2c9 NC |
97 | int paropcount; |
98 | struct opstruct paroperands[MAX_OPERANDS]; | |
99 | ||
100 | int is_lkaddr; | |
101 | int lkoperand; | |
102 | int words; /* Size of insn in 16-bit words. */ | |
103 | int using_default_dst; /* Do we need to explicitly set an | |
104 | omitted OP_DST operand? */ | |
105 | struct | |
106 | { | |
107 | unsigned short word; /* Final encoded opcode data. */ | |
108 | int unresolved; | |
109 | int r_nchars; /* Relocation size. */ | |
110 | bfd_reloc_code_real_type r_type; /* Relocation type. */ | |
111 | expressionS addr_expr; /* Storage for unresolved expressions. */ | |
112 | } opcode[3]; | |
113 | } tic54x_insn; | |
d0313fb7 NC |
114 | |
115 | enum cpu_version | |
116 | { | |
39bec121 TW |
117 | VNONE = 0, V541 = 1, V542 = 2, V543 = 3, V545 = 5, V548 = 8, V549 = 9, |
118 | V545LP = 15, V546LP = 16 | |
119 | }; | |
120 | ||
d0313fb7 NC |
121 | enum address_mode |
122 | { | |
9a736b6b NC |
123 | c_mode, /* 16-bit addresses. */ |
124 | far_mode /* >16-bit addresses. */ | |
39bec121 TW |
125 | }; |
126 | ||
f1e7a2c9 NC |
127 | static segT stag_saved_seg; |
128 | static subsegT stag_saved_subseg; | |
129 | ||
130 | const char comment_chars[] = ";"; | |
131 | const char line_comment_chars[] = ";*#"; /* At column zero only. */ | |
132 | const char line_separator_chars[] = ""; /* Not permitted. */ | |
133 | ||
134 | int emitting_long = 0; | |
135 | ||
136 | /* Characters which indicate that this is a floating point constant. */ | |
137 | const char FLT_CHARS[] = "fF"; | |
138 | ||
139 | /* Characters that can be used to separate mantissa from exp in FP | |
140 | nums. */ | |
141 | const char EXP_CHARS[] = "eE"; | |
142 | ||
143 | const char *md_shortopts = ""; | |
144 | ||
39bec121 | 145 | #define OPTION_ADDRESS_MODE (OPTION_MD_BASE) |
1aea3bb8 NC |
146 | #define OPTION_CPU_VERSION (OPTION_ADDRESS_MODE + 1) |
147 | #define OPTION_COFF_VERSION (OPTION_CPU_VERSION + 1) | |
148 | #define OPTION_STDERR_TO_FILE (OPTION_COFF_VERSION + 1) | |
39bec121 | 149 | |
1aea3bb8 | 150 | struct option md_longopts[] = |
39bec121 | 151 | { |
f1e7a2c9 NC |
152 | { "mfar-mode", no_argument, NULL, OPTION_ADDRESS_MODE }, |
153 | { "mf", no_argument, NULL, OPTION_ADDRESS_MODE }, | |
154 | { "mcpu", required_argument, NULL, OPTION_CPU_VERSION }, | |
39bec121 | 155 | { "merrors-to-file", required_argument, NULL, OPTION_STDERR_TO_FILE }, |
f1e7a2c9 NC |
156 | { "me", required_argument, NULL, OPTION_STDERR_TO_FILE }, |
157 | { NULL, no_argument, NULL, 0}, | |
39bec121 TW |
158 | }; |
159 | ||
160 | size_t md_longopts_size = sizeof (md_longopts); | |
161 | ||
d0313fb7 | 162 | static int assembly_begun = 0; |
39bec121 TW |
163 | /* Addressing mode is not entirely implemented; the latest rev of the Other |
164 | assembler doesn't seem to make any distinction whatsoever; all relocations | |
165 | are stored as extended relocatiosn. Older versions used REL16 vs RELEXT16, | |
166 | but now it seems all relocations are RELEXT16. We use all RELEXT16. | |
167 | ||
168 | The cpu version is kind of a waste of time as well. There is one | |
169 | instruction (RND) for LP devices only, and several for devices with | |
d0313fb7 | 170 | extended addressing only. We include it for compatibility. */ |
39bec121 | 171 | static enum address_mode amode = c_mode; |
d0313fb7 | 172 | static enum cpu_version cpu = VNONE; |
39bec121 | 173 | |
d0313fb7 | 174 | /* Include string substitutions in listing? */ |
39bec121 | 175 | static int listing_sslist = 0; |
9a736b6b | 176 | |
d0313fb7 | 177 | /* Did we do subsym substitutions on the line? */ |
39bec121 | 178 | static int substitution_line = 0; |
9a736b6b | 179 | |
d0313fb7 | 180 | /* Last label seen. */ |
39bec121 | 181 | static symbolS *last_label_seen = NULL; |
9a736b6b | 182 | |
d0313fb7 | 183 | /* This ensures that all new labels are unique. */ |
39bec121 TW |
184 | static int local_label_id; |
185 | ||
1dab94dd | 186 | static struct hash_control *subsym_recurse_hash; /* Prevent infinite recurse. */ |
9a736b6b | 187 | static struct hash_control *math_hash; /* Built-in math functions. */ |
d0313fb7 NC |
188 | /* Allow maximum levels of macro nesting; level 0 is the main substitution |
189 | symbol table. The other assembler only does 32 levels, so there! */ | |
39bec121 | 190 | static struct hash_control *subsym_hash[100]; |
9a736b6b | 191 | |
1aea3bb8 | 192 | /* Keep track of local labels so we can substitute them before GAS sees them |
39bec121 TW |
193 | since macros use their own 'namespace' for local labels, use a separate hash |
194 | ||
195 | We do our own local label handling 'cuz it's subtly different from the | |
196 | stock GAS handling. | |
197 | ||
198 | We use our own macro nesting counter, since GAS overloads it when expanding | |
d0313fb7 | 199 | other things (like conditionals and repeat loops). */ |
39bec121 TW |
200 | static int macro_level = 0; |
201 | static struct hash_control *local_label_hash[100]; | |
d0313fb7 | 202 | /* Keep track of struct/union tags. */ |
39bec121 TW |
203 | static struct hash_control *stag_hash; |
204 | static struct hash_control *op_hash; | |
205 | static struct hash_control *parop_hash; | |
206 | static struct hash_control *reg_hash; | |
207 | static struct hash_control *mmreg_hash; | |
208 | static struct hash_control *cc_hash; | |
209 | static struct hash_control *cc2_hash; | |
210 | static struct hash_control *cc3_hash; | |
211 | static struct hash_control *sbit_hash; | |
212 | static struct hash_control *misc_symbol_hash; | |
213 | ||
f1e7a2c9 NC |
214 | /* Only word (et al.), align, or conditionals are allowed within |
215 | .struct/.union. */ | |
216 | #define ILLEGAL_WITHIN_STRUCT() \ | |
217 | do \ | |
218 | if (current_stag != NULL) \ | |
219 | { \ | |
220 | as_bad (_("pseudo-op illegal within .struct/.union")); \ | |
221 | return; \ | |
222 | } \ | |
223 | while (0) | |
39bec121 | 224 | |
5a49b8ac AM |
225 | |
226 | static void subsym_create_or_replace (char *, char *); | |
227 | static char *subsym_lookup (char *, int); | |
228 | static char *subsym_substitute (char *, int); | |
39bec121 | 229 | |
f1e7a2c9 NC |
230 | |
231 | void | |
5a49b8ac | 232 | md_show_usage (FILE *stream) |
f1e7a2c9 NC |
233 | { |
234 | fprintf (stream, _("C54x-specific command line options:\n")); | |
235 | fprintf (stream, _("-mfar-mode | -mf Use extended addressing\n")); | |
236 | fprintf (stream, _("-mcpu=<CPU version> Specify the CPU version\n")); | |
f1e7a2c9 NC |
237 | fprintf (stream, _("-merrors-to-file <filename>\n")); |
238 | fprintf (stream, _("-me <filename> Redirect errors to a file\n")); | |
239 | } | |
39bec121 | 240 | |
d0313fb7 | 241 | /* Output a single character (upper octect is zero). */ |
9a736b6b | 242 | |
d0313fb7 | 243 | static void |
5a49b8ac | 244 | tic54x_emit_char (char c) |
39bec121 TW |
245 | { |
246 | expressionS exp; | |
247 | ||
248 | exp.X_op = O_constant; | |
249 | exp.X_add_number = c; | |
250 | emit_expr (&exp, 2); | |
251 | } | |
252 | ||
d0313fb7 | 253 | /* Walk backwards in the frag chain. */ |
9a736b6b | 254 | |
39bec121 | 255 | static fragS * |
5a49b8ac | 256 | frag_prev (fragS *frag, segT seg) |
39bec121 TW |
257 | { |
258 | segment_info_type *seginfo = seg_info (seg); | |
259 | fragS *fragp; | |
260 | ||
d0313fb7 | 261 | for (fragp = seginfo->frchainP->frch_root; fragp; fragp = fragp->fr_next) |
39bec121 TW |
262 | if (fragp->fr_next == frag) |
263 | return fragp; | |
1aea3bb8 | 264 | |
39bec121 TW |
265 | return NULL; |
266 | } | |
267 | ||
268 | static fragS * | |
5a49b8ac | 269 | bit_offset_frag (fragS *frag, segT seg) |
39bec121 TW |
270 | { |
271 | while (frag != NULL) | |
272 | { | |
d0313fb7 NC |
273 | if (frag->fr_fix == 0 |
274 | && frag->fr_opcode == NULL | |
275 | && frag->tc_frag_data == 0) | |
276 | frag = frag_prev (frag, seg); | |
39bec121 | 277 | else |
d0313fb7 | 278 | return frag; |
39bec121 TW |
279 | } |
280 | return NULL; | |
281 | } | |
282 | ||
d0313fb7 NC |
283 | /* Return the number of bits allocated in the most recent word, or zero if |
284 | none. .field/.space/.bes may leave words partially allocated. */ | |
9a736b6b | 285 | |
39bec121 | 286 | static int |
5a49b8ac | 287 | frag_bit_offset (fragS *frag, segT seg) |
39bec121 TW |
288 | { |
289 | frag = bit_offset_frag (frag, seg); | |
1aea3bb8 | 290 | |
39bec121 | 291 | if (frag) |
d0313fb7 NC |
292 | return frag->fr_opcode != NULL ? -1 : frag->tc_frag_data; |
293 | ||
39bec121 TW |
294 | return 0; |
295 | } | |
296 | ||
d0313fb7 NC |
297 | /* Read an expression from a C string; returns a pointer past the end of the |
298 | expression. */ | |
9a736b6b | 299 | |
39bec121 | 300 | static char * |
5a49b8ac | 301 | parse_expression (char *str, expressionS *exp) |
39bec121 TW |
302 | { |
303 | char *s; | |
304 | char *tmp; | |
305 | ||
306 | tmp = input_line_pointer; /* Save line pointer. */ | |
307 | input_line_pointer = str; | |
308 | expression (exp); | |
309 | s = input_line_pointer; | |
310 | input_line_pointer = tmp; /* Restore line pointer. */ | |
311 | return s; /* Return pointer to where parsing stopped. */ | |
312 | } | |
313 | ||
1aea3bb8 NC |
314 | /* .asg "character-string"|character-string, symbol |
315 | ||
39bec121 TW |
316 | .eval is the only pseudo-op allowed to perform arithmetic on substitution |
317 | symbols. all other use of symbols defined with .asg are currently | |
d0313fb7 | 318 | unsupported. */ |
9a736b6b | 319 | |
d0313fb7 | 320 | static void |
5a49b8ac | 321 | tic54x_asg (int x ATTRIBUTE_UNUSED) |
39bec121 TW |
322 | { |
323 | int c; | |
324 | char *name; | |
325 | char *str; | |
326 | char *tmp; | |
327 | int quoted = *input_line_pointer == '"'; | |
328 | ||
329 | ILLEGAL_WITHIN_STRUCT (); | |
330 | ||
331 | if (quoted) | |
332 | { | |
333 | int len; | |
334 | str = demand_copy_C_string (&len); | |
335 | c = *input_line_pointer; | |
336 | } | |
337 | else | |
338 | { | |
339 | str = input_line_pointer; | |
340 | while ((c = *input_line_pointer) != ',') | |
d0313fb7 NC |
341 | { |
342 | if (is_end_of_line[(int) *input_line_pointer]) | |
343 | break; | |
344 | ++input_line_pointer; | |
345 | } | |
39bec121 TW |
346 | *input_line_pointer = 0; |
347 | } | |
348 | if (c != ',') | |
349 | { | |
350 | as_bad (_("Comma and symbol expected for '.asg STRING, SYMBOL'")); | |
351 | ignore_rest_of_line (); | |
352 | return; | |
353 | } | |
354 | ||
355 | name = ++input_line_pointer; | |
356 | c = get_symbol_end (); /* Get terminator. */ | |
3882b010 | 357 | if (!ISALPHA (*name)) |
39bec121 TW |
358 | { |
359 | as_bad ("symbols assigned with .asg must begin with a letter"); | |
360 | ignore_rest_of_line (); | |
361 | return; | |
362 | } | |
363 | ||
364 | tmp = xmalloc (strlen (str) + 1); | |
365 | strcpy (tmp, str); | |
366 | str = tmp; | |
367 | tmp = xmalloc (strlen (name) + 1); | |
368 | strcpy (tmp, name); | |
369 | name = tmp; | |
370 | subsym_create_or_replace (name, str); | |
371 | *input_line_pointer = c; | |
372 | demand_empty_rest_of_line (); | |
373 | } | |
374 | ||
1aea3bb8 | 375 | /* .eval expression, symbol |
39bec121 | 376 | There's something screwy about this. The other assembler sometimes does and |
1aea3bb8 | 377 | sometimes doesn't substitute symbols defined with .eval. |
39bec121 | 378 | We'll put the symbols into the subsym table as well as the normal symbol |
d0313fb7 | 379 | table, since that's what works best. */ |
9a736b6b | 380 | |
d0313fb7 | 381 | static void |
5a49b8ac | 382 | tic54x_eval (int x ATTRIBUTE_UNUSED) |
39bec121 TW |
383 | { |
384 | char c; | |
385 | int value; | |
386 | char *name; | |
387 | symbolS *symbolP; | |
388 | char valuestr[32], *tmp; | |
389 | int quoted; | |
390 | ||
391 | ILLEGAL_WITHIN_STRUCT (); | |
392 | ||
393 | SKIP_WHITESPACE (); | |
394 | ||
395 | quoted = *input_line_pointer == '"'; | |
396 | if (quoted) | |
397 | ++input_line_pointer; | |
398 | value = get_absolute_expression (); | |
399 | if (quoted) | |
400 | { | |
401 | if (*input_line_pointer != '"') | |
d0313fb7 NC |
402 | { |
403 | as_bad (_("Unterminated string after absolute expression")); | |
404 | ignore_rest_of_line (); | |
405 | return; | |
406 | } | |
39bec121 TW |
407 | ++input_line_pointer; |
408 | } | |
409 | if (*input_line_pointer++ != ',') | |
410 | { | |
411 | as_bad (_("Comma and symbol expected for '.eval EXPR, SYMBOL'")); | |
412 | ignore_rest_of_line (); | |
413 | return; | |
414 | } | |
415 | name = input_line_pointer; | |
416 | c = get_symbol_end (); /* Get terminator. */ | |
d0313fb7 | 417 | tmp = xmalloc (strlen (name) + 1); |
39bec121 TW |
418 | name = strcpy (tmp, name); |
419 | *input_line_pointer = c; | |
420 | ||
3882b010 | 421 | if (!ISALPHA (*name)) |
39bec121 TW |
422 | { |
423 | as_bad (_("symbols assigned with .eval must begin with a letter")); | |
424 | ignore_rest_of_line (); | |
425 | return; | |
426 | } | |
427 | symbolP = symbol_new (name, absolute_section, | |
428 | (valueT) value, &zero_address_frag); | |
429 | SF_SET_LOCAL (symbolP); | |
430 | symbol_table_insert (symbolP); | |
431 | ||
432 | /* The "other" assembler sometimes doesn't put .eval's in the subsym table | |
433 | But since there's not written rule as to when, don't even bother trying | |
d0313fb7 | 434 | to match their behavior. */ |
39bec121 TW |
435 | sprintf (valuestr, "%d", value); |
436 | tmp = xmalloc (strlen (valuestr) + 1); | |
437 | strcpy (tmp, valuestr); | |
438 | subsym_create_or_replace (name, tmp); | |
439 | ||
440 | demand_empty_rest_of_line (); | |
441 | } | |
442 | ||
1aea3bb8 | 443 | /* .bss symbol, size [, [blocking flag] [, alignment flag] |
39bec121 TW |
444 | |
445 | alignment is to a longword boundary; blocking is to 128-word boundary. | |
446 | ||
447 | 1) if there is a hole in memory, this directive should attempt to fill it | |
448 | (not yet implemented). | |
449 | ||
450 | 2) if the blocking flag is not set, allocate at the current SPC | |
451 | otherwise, check to see if the current SPC plus the space to be | |
452 | allocated crosses the page boundary (128 words). | |
453 | if there's not enough space, create a hole and align with the next page | |
1aea3bb8 | 454 | boundary. |
d0313fb7 | 455 | (not yet implemented). */ |
9a736b6b | 456 | |
d0313fb7 | 457 | static void |
5a49b8ac | 458 | tic54x_bss (int x ATTRIBUTE_UNUSED) |
39bec121 TW |
459 | { |
460 | char c; | |
461 | char *name; | |
462 | char *p; | |
463 | int words; | |
464 | segT current_seg; | |
465 | subsegT current_subseg; | |
466 | symbolS *symbolP; | |
467 | int block = 0; | |
468 | int align = 0; | |
469 | ||
470 | ILLEGAL_WITHIN_STRUCT (); | |
471 | ||
d0313fb7 NC |
472 | current_seg = now_seg; /* Save current seg. */ |
473 | current_subseg = now_subseg; /* Save current subseg. */ | |
39bec121 TW |
474 | |
475 | name = input_line_pointer; | |
476 | c = get_symbol_end (); /* Get terminator. */ | |
477 | if (c != ',') | |
478 | { | |
479 | as_bad (".bss size argument missing\n"); | |
480 | ignore_rest_of_line (); | |
481 | return; | |
482 | } | |
483 | ||
484 | ++input_line_pointer; | |
485 | words = get_absolute_expression (); | |
486 | if (words < 0) | |
487 | { | |
488 | as_bad (".bss size %d < 0!", words); | |
489 | ignore_rest_of_line (); | |
490 | return; | |
491 | } | |
492 | ||
493 | if (*input_line_pointer == ',') | |
494 | { | |
9a736b6b | 495 | /* The blocking flag may be missing. */ |
39bec121 TW |
496 | ++input_line_pointer; |
497 | if (*input_line_pointer != ',') | |
d0313fb7 | 498 | block = get_absolute_expression (); |
39bec121 | 499 | else |
d0313fb7 | 500 | block = 0; |
39bec121 TW |
501 | |
502 | if (*input_line_pointer == ',') | |
d0313fb7 NC |
503 | { |
504 | ++input_line_pointer; | |
505 | align = get_absolute_expression (); | |
506 | } | |
39bec121 | 507 | else |
d0313fb7 | 508 | align = 0; |
39bec121 TW |
509 | } |
510 | else | |
511 | block = align = 0; | |
512 | ||
513 | subseg_set (bss_section, 0); | |
514 | symbolP = symbol_find_or_make (name); | |
515 | ||
516 | if (S_GET_SEGMENT (symbolP) == bss_section) | |
517 | symbolP->sy_frag->fr_symbol = (symbolS *) NULL; | |
518 | ||
519 | symbol_set_frag (symbolP, frag_now); | |
520 | p = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, | |
6e917903 | 521 | (offsetT) (words * OCTETS_PER_BYTE), (char *) 0); |
9a736b6b | 522 | *p = 0; /* Fill char. */ |
39bec121 TW |
523 | |
524 | S_SET_SEGMENT (symbolP, bss_section); | |
525 | ||
526 | /* The symbol may already have been created with a preceding | |
527 | ".globl" directive -- be careful not to step on storage class | |
528 | in that case. Otherwise, set it to static. */ | |
529 | if (S_GET_STORAGE_CLASS (symbolP) != C_EXT) | |
530 | S_SET_STORAGE_CLASS (symbolP, C_STAT); | |
531 | ||
532 | if (align) | |
533 | { | |
534 | /* s_align eats end of line; restore it */ | |
535 | s_align_bytes (4); | |
536 | --input_line_pointer; | |
537 | } | |
538 | ||
539 | if (block) | |
ebe372c1 | 540 | bss_section->flags |= SEC_TIC54X_BLOCK; |
39bec121 | 541 | |
9a736b6b | 542 | subseg_set (current_seg, current_subseg); /* Restore current seg. */ |
39bec121 TW |
543 | demand_empty_rest_of_line (); |
544 | } | |
545 | ||
546 | static void | |
5a49b8ac AM |
547 | stag_add_field_symbols (struct stag *stag, |
548 | const char *path, | |
549 | bfd_vma base_offset, | |
550 | symbolS *rootsym, | |
551 | const char *root_stag_name) | |
39bec121 TW |
552 | { |
553 | char prefix[strlen (path) + 2]; | |
554 | struct stag_field *field = stag->field; | |
1aea3bb8 NC |
555 | |
556 | /* Construct a symbol for every field contained within this structure | |
d0313fb7 | 557 | including fields within structure fields. */ |
39bec121 TW |
558 | strcpy (prefix, path); |
559 | if (*path) | |
560 | strcat (prefix, "."); | |
561 | ||
562 | while (field != NULL) | |
563 | { | |
564 | int len = strlen (prefix) + strlen (field->name) + 2; | |
565 | char *name = xmalloc (len); | |
566 | strcpy (name, prefix); | |
567 | strcat (name, field->name); | |
568 | ||
569 | if (rootsym == NULL) | |
9a736b6b NC |
570 | { |
571 | symbolS *sym; | |
572 | sym = symbol_new (name, absolute_section, | |
573 | (field->stag ? field->offset : | |
574 | (valueT) (base_offset + field->offset)), | |
575 | &zero_address_frag); | |
576 | SF_SET_LOCAL (sym); | |
577 | symbol_table_insert (sym); | |
578 | } | |
39bec121 | 579 | else |
9a736b6b NC |
580 | { |
581 | char *replacement = xmalloc (strlen (name) | |
1aea3bb8 | 582 | + strlen (stag->name) + 2); |
9a736b6b NC |
583 | strcpy (replacement, S_GET_NAME (rootsym)); |
584 | strcat (replacement, "+"); | |
585 | strcat (replacement, root_stag_name); | |
586 | strcat (replacement, name + strlen (S_GET_NAME (rootsym))); | |
587 | hash_insert (subsym_hash[0], name, replacement); | |
588 | } | |
39bec121 | 589 | |
d0313fb7 | 590 | /* Recurse if the field is a structure. |
9a736b6b | 591 | Note the field offset is relative to the outermost struct. */ |
39bec121 | 592 | if (field->stag != NULL) |
9a736b6b NC |
593 | stag_add_field_symbols (field->stag, name, |
594 | field->offset, | |
595 | rootsym, root_stag_name); | |
39bec121 TW |
596 | field = field->next; |
597 | } | |
598 | } | |
599 | ||
d0313fb7 NC |
600 | /* Keep track of stag fields so that when structures are nested we can add the |
601 | complete dereferencing symbols to the symbol table. */ | |
9a736b6b | 602 | |
39bec121 | 603 | static void |
5a49b8ac AM |
604 | stag_add_field (struct stag *parent, |
605 | const char *name, | |
606 | bfd_vma offset, | |
607 | struct stag *stag) | |
39bec121 TW |
608 | { |
609 | struct stag_field *sfield = xmalloc (sizeof (struct stag_field)); | |
610 | ||
611 | memset (sfield, 0, sizeof (*sfield)); | |
1aea3bb8 | 612 | sfield->name = strcpy (xmalloc (strlen (name) + 1), name); |
39bec121 TW |
613 | sfield->offset = offset; |
614 | sfield->bitfield_offset = parent->current_bitfield_offset; | |
615 | sfield->stag = stag; | |
616 | if (parent->field == NULL) | |
617 | parent->field = sfield; | |
1aea3bb8 NC |
618 | else |
619 | { | |
620 | struct stag_field *sf = parent->field; | |
621 | while (sf->next != NULL) | |
622 | sf = sf->next; | |
623 | sf->next = sfield; | |
624 | } | |
d0313fb7 | 625 | /* Only create a symbol for this field if the parent has no name. */ |
39bec121 TW |
626 | if (!strncmp (".fake", parent->name, 5)) |
627 | { | |
1aea3bb8 | 628 | symbolS *sym = symbol_new (name, absolute_section, |
9a736b6b | 629 | (valueT) offset, &zero_address_frag); |
39bec121 TW |
630 | SF_SET_LOCAL (sym); |
631 | symbol_table_insert (sym); | |
632 | } | |
633 | } | |
634 | ||
635 | /* [STAG] .struct [OFFSET] | |
9a736b6b NC |
636 | Start defining structure offsets (symbols in absolute section). */ |
637 | ||
39bec121 | 638 | static void |
5a49b8ac | 639 | tic54x_struct (int arg) |
39bec121 TW |
640 | { |
641 | int start_offset = 0; | |
642 | int is_union = arg; | |
643 | ||
644 | if (!current_stag) | |
645 | { | |
d0313fb7 | 646 | /* Starting a new struct, switch to absolute section. */ |
39bec121 TW |
647 | stag_saved_seg = now_seg; |
648 | stag_saved_subseg = now_subseg; | |
649 | subseg_set (absolute_section, 0); | |
650 | } | |
d0313fb7 | 651 | /* Align the current pointer. */ |
39bec121 TW |
652 | else if (current_stag->current_bitfield_offset != 0) |
653 | { | |
654 | ++abs_section_offset; | |
655 | current_stag->current_bitfield_offset = 0; | |
656 | } | |
657 | ||
d0313fb7 | 658 | /* Offset expression is only meaningful for global .structs. */ |
39bec121 TW |
659 | if (!is_union) |
660 | { | |
d0313fb7 | 661 | /* Offset is ignored in inner structs. */ |
39bec121 | 662 | SKIP_WHITESPACE (); |
1aea3bb8 | 663 | if (!is_end_of_line[(int) *input_line_pointer]) |
9a736b6b | 664 | start_offset = get_absolute_expression (); |
39bec121 | 665 | else |
9a736b6b | 666 | start_offset = 0; |
39bec121 TW |
667 | } |
668 | ||
669 | if (current_stag) | |
670 | { | |
d0313fb7 | 671 | /* Nesting, link to outer one. */ |
1aea3bb8 | 672 | current_stag->inner = (struct stag *) xmalloc (sizeof (struct stag)); |
39bec121 TW |
673 | memset (current_stag->inner, 0, sizeof (struct stag)); |
674 | current_stag->inner->outer = current_stag; | |
675 | current_stag = current_stag->inner; | |
676 | if (start_offset) | |
9a736b6b | 677 | as_warn (_("Offset on nested structures is ignored")); |
39bec121 TW |
678 | start_offset = abs_section_offset; |
679 | } | |
1aea3bb8 | 680 | else |
39bec121 | 681 | { |
1aea3bb8 | 682 | current_stag = (struct stag *) xmalloc (sizeof (struct stag)); |
39bec121 TW |
683 | memset (current_stag, 0, sizeof (struct stag)); |
684 | abs_section_offset = start_offset; | |
685 | } | |
686 | current_stag->is_union = is_union; | |
687 | ||
688 | if (line_label == NULL) | |
689 | { | |
690 | static int struct_count = 0; | |
691 | char fake[] = ".fake_stagNNNNNNN"; | |
692 | sprintf (fake, ".fake_stag%d", struct_count++); | |
693 | current_stag->sym = symbol_new (fake, absolute_section, | |
9a736b6b NC |
694 | (valueT) abs_section_offset, |
695 | &zero_address_frag); | |
39bec121 TW |
696 | } |
697 | else | |
698 | { | |
699 | char label[strlen (S_GET_NAME (line_label)) + 1]; | |
700 | strcpy (label, S_GET_NAME (line_label)); | |
701 | current_stag->sym = symbol_new (label, absolute_section, | |
9a736b6b NC |
702 | (valueT) abs_section_offset, |
703 | &zero_address_frag); | |
39bec121 TW |
704 | } |
705 | current_stag->name = S_GET_NAME (current_stag->sym); | |
706 | SF_SET_LOCAL (current_stag->sym); | |
d0313fb7 | 707 | /* Nested .structs don't go into the symbol table. */ |
39bec121 TW |
708 | if (current_stag->outer == NULL) |
709 | symbol_table_insert (current_stag->sym); | |
710 | ||
711 | line_label = NULL; | |
712 | } | |
713 | ||
1aea3bb8 | 714 | /* [LABEL] .endstruct |
39bec121 | 715 | finish defining structure offsets; optional LABEL's value will be the size |
d0313fb7 | 716 | of the structure. */ |
9a736b6b | 717 | |
39bec121 | 718 | static void |
5a49b8ac | 719 | tic54x_endstruct (int is_union) |
39bec121 TW |
720 | { |
721 | int size; | |
1aea3bb8 | 722 | const char *path = |
39bec121 | 723 | !strncmp (current_stag->name, ".fake", 5) ? "" : current_stag->name; |
1aea3bb8 | 724 | |
39bec121 TW |
725 | if (!current_stag || current_stag->is_union != is_union) |
726 | { | |
1aea3bb8 | 727 | as_bad (_(".end%s without preceding .%s"), |
9a736b6b NC |
728 | is_union ? "union" : "struct", |
729 | is_union ? "union" : "struct"); | |
39bec121 TW |
730 | ignore_rest_of_line (); |
731 | return; | |
732 | } | |
733 | ||
d0313fb7 | 734 | /* Align end of structures. */ |
39bec121 TW |
735 | if (current_stag->current_bitfield_offset) |
736 | { | |
737 | ++abs_section_offset; | |
738 | current_stag->current_bitfield_offset = 0; | |
739 | } | |
740 | ||
741 | if (current_stag->is_union) | |
742 | size = current_stag->size; | |
743 | else | |
744 | size = abs_section_offset - S_GET_VALUE (current_stag->sym); | |
745 | if (line_label != NULL) | |
746 | { | |
747 | S_SET_VALUE (line_label, size); | |
748 | symbol_table_insert (line_label); | |
749 | line_label = NULL; | |
750 | } | |
751 | ||
d0313fb7 | 752 | /* Union size has already been calculated. */ |
39bec121 TW |
753 | if (!current_stag->is_union) |
754 | current_stag->size = size; | |
d0313fb7 | 755 | /* Nested .structs don't get put in the stag table. */ |
39bec121 TW |
756 | if (current_stag->outer == NULL) |
757 | { | |
758 | hash_insert (stag_hash, current_stag->name, current_stag); | |
1aea3bb8 | 759 | stag_add_field_symbols (current_stag, path, |
9a736b6b NC |
760 | S_GET_VALUE (current_stag->sym), |
761 | NULL, NULL); | |
39bec121 TW |
762 | } |
763 | current_stag = current_stag->outer; | |
764 | ||
d0313fb7 NC |
765 | /* If this is a nested .struct/.union, add it as a field to the enclosing |
766 | one. otherwise, restore the section we were in. */ | |
39bec121 TW |
767 | if (current_stag != NULL) |
768 | { | |
769 | stag_add_field (current_stag, current_stag->inner->name, | |
9a736b6b NC |
770 | S_GET_VALUE (current_stag->inner->sym), |
771 | current_stag->inner); | |
39bec121 TW |
772 | } |
773 | else | |
774 | subseg_set (stag_saved_seg, stag_saved_subseg); | |
775 | } | |
776 | ||
777 | /* [LABEL] .tag STAG | |
778 | Reference a structure within a structure, as a sized field with an optional | |
1aea3bb8 | 779 | label. |
39bec121 | 780 | If used outside of a .struct/.endstruct, overlays the given structure |
d0313fb7 | 781 | format on the existing allocated space. */ |
9a736b6b | 782 | |
39bec121 | 783 | static void |
5a49b8ac | 784 | tic54x_tag (int ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
785 | { |
786 | char *name = input_line_pointer; | |
787 | int c = get_symbol_end (); | |
1aea3bb8 | 788 | struct stag *stag = (struct stag *) hash_find (stag_hash, name); |
39bec121 TW |
789 | |
790 | if (!stag) | |
791 | { | |
792 | if (*name) | |
9a736b6b | 793 | as_bad (_("Unrecognized struct/union tag '%s'"), name); |
39bec121 | 794 | else |
9a736b6b | 795 | as_bad (_(".tag requires a structure tag")); |
39bec121 TW |
796 | ignore_rest_of_line (); |
797 | return; | |
798 | } | |
799 | if (line_label == NULL) | |
800 | { | |
801 | as_bad (_("Label required for .tag")); | |
802 | ignore_rest_of_line (); | |
803 | return; | |
804 | } | |
805 | else | |
806 | { | |
1aea3bb8 NC |
807 | char label[strlen (S_GET_NAME (line_label)) + 1]; |
808 | ||
809 | strcpy (label, S_GET_NAME (line_label)); | |
39bec121 | 810 | if (current_stag != NULL) |
9a736b6b NC |
811 | stag_add_field (current_stag, label, |
812 | abs_section_offset - S_GET_VALUE (current_stag->sym), | |
813 | stag); | |
39bec121 | 814 | else |
9a736b6b NC |
815 | { |
816 | symbolS *sym = symbol_find (label); | |
f1e7a2c9 | 817 | |
9a736b6b NC |
818 | if (!sym) |
819 | { | |
820 | as_bad (_(".tag target '%s' undefined"), label); | |
821 | ignore_rest_of_line (); | |
822 | return; | |
823 | } | |
824 | stag_add_field_symbols (stag, S_GET_NAME (sym), | |
825 | S_GET_VALUE (stag->sym), sym, stag->name); | |
826 | } | |
39bec121 | 827 | } |
1aea3bb8 | 828 | |
d0313fb7 | 829 | /* Bump by the struct size, but only if we're within a .struct section. */ |
39bec121 TW |
830 | if (current_stag != NULL && !current_stag->is_union) |
831 | abs_section_offset += stag->size; | |
832 | ||
833 | *input_line_pointer = c; | |
834 | demand_empty_rest_of_line (); | |
835 | line_label = NULL; | |
836 | } | |
837 | ||
d0313fb7 | 838 | /* Handle all .byte, .char, .double, .field, .float, .half, .int, .long, |
39bec121 | 839 | .short, .string, .ubyte, .uchar, .uhalf, .uint, .ulong, .ushort, .uword, |
d0313fb7 | 840 | and .word. */ |
9a736b6b | 841 | |
39bec121 | 842 | static void |
5a49b8ac | 843 | tic54x_struct_field (int type) |
39bec121 TW |
844 | { |
845 | int size; | |
846 | int count = 1; | |
847 | int new_bitfield_offset = 0; | |
848 | int field_align = current_stag->current_bitfield_offset != 0; | |
849 | int longword_align = 0; | |
850 | ||
851 | SKIP_WHITESPACE (); | |
1aea3bb8 | 852 | if (!is_end_of_line[(int) *input_line_pointer]) |
39bec121 TW |
853 | count = get_absolute_expression (); |
854 | ||
855 | switch (type) | |
856 | { | |
857 | case 'b': | |
858 | case 'B': | |
859 | case 'c': | |
860 | case 'C': | |
861 | case 'h': | |
862 | case 'H': | |
863 | case 'i': | |
864 | case 'I': | |
865 | case 's': | |
866 | case 'S': | |
867 | case 'w': | |
868 | case 'W': | |
9a736b6b | 869 | case '*': /* String. */ |
39bec121 TW |
870 | size = 1; |
871 | break; | |
872 | case 'f': | |
873 | case 'l': | |
874 | case 'L': | |
875 | longword_align = 1; | |
876 | size = 2; | |
877 | break; | |
9a736b6b | 878 | case '.': /* Bitfield. */ |
39bec121 TW |
879 | size = 0; |
880 | if (count < 1 || count > 32) | |
9a736b6b NC |
881 | { |
882 | as_bad (_(".field count '%d' out of range (1 <= X <= 32)"), count); | |
883 | ignore_rest_of_line (); | |
884 | return; | |
885 | } | |
39bec121 | 886 | if (current_stag->current_bitfield_offset + count > 16) |
9a736b6b NC |
887 | { |
888 | /* Set the appropriate size and new field offset. */ | |
889 | if (count == 32) | |
890 | { | |
891 | size = 2; | |
1aea3bb8 | 892 | count = 1; |
9a736b6b NC |
893 | } |
894 | else if (count > 16) | |
895 | { | |
896 | size = 1; | |
1aea3bb8 | 897 | count = 1; |
9a736b6b NC |
898 | new_bitfield_offset = count - 16; |
899 | } | |
900 | else | |
f1e7a2c9 | 901 | new_bitfield_offset = count; |
9a736b6b | 902 | } |
39bec121 | 903 | else |
9a736b6b NC |
904 | { |
905 | field_align = 0; | |
906 | new_bitfield_offset = current_stag->current_bitfield_offset + count; | |
907 | } | |
39bec121 TW |
908 | break; |
909 | default: | |
910 | as_bad (_("Unrecognized field type '%c'"), type); | |
911 | ignore_rest_of_line (); | |
912 | return; | |
913 | } | |
914 | ||
915 | if (field_align) | |
916 | { | |
d0313fb7 | 917 | /* Align to the actual starting position of the field. */ |
39bec121 TW |
918 | current_stag->current_bitfield_offset = 0; |
919 | ++abs_section_offset; | |
920 | } | |
d0313fb7 | 921 | /* Align to longword boundary. */ |
39bec121 TW |
922 | if (longword_align && (abs_section_offset & 0x1)) |
923 | ++abs_section_offset; | |
924 | ||
925 | if (line_label == NULL) | |
926 | { | |
927 | static int fieldno = 0; | |
928 | char fake[] = ".fake_fieldNNNNN"; | |
f1e7a2c9 | 929 | |
39bec121 | 930 | sprintf (fake, ".fake_field%d", fieldno++); |
1aea3bb8 | 931 | stag_add_field (current_stag, fake, |
9a736b6b NC |
932 | abs_section_offset - S_GET_VALUE (current_stag->sym), |
933 | NULL); | |
39bec121 TW |
934 | } |
935 | else | |
936 | { | |
937 | char label[strlen (S_GET_NAME (line_label) + 1)]; | |
f1e7a2c9 | 938 | |
39bec121 | 939 | strcpy (label, S_GET_NAME (line_label)); |
1aea3bb8 | 940 | stag_add_field (current_stag, label, |
9a736b6b NC |
941 | abs_section_offset - S_GET_VALUE (current_stag->sym), |
942 | NULL); | |
39bec121 TW |
943 | } |
944 | ||
945 | if (current_stag->is_union) | |
946 | { | |
d0313fb7 | 947 | /* Note we treat the element as if it were an array of COUNT. */ |
1aea3bb8 | 948 | if (current_stag->size < (unsigned) size * count) |
9a736b6b | 949 | current_stag->size = size * count; |
39bec121 TW |
950 | } |
951 | else | |
952 | { | |
1aea3bb8 | 953 | abs_section_offset += (unsigned) size * count; |
39bec121 TW |
954 | current_stag->current_bitfield_offset = new_bitfield_offset; |
955 | } | |
956 | line_label = NULL; | |
957 | } | |
958 | ||
d0313fb7 | 959 | /* Handle .byte, .word. .int, .long and all variants. */ |
9a736b6b | 960 | |
1aea3bb8 | 961 | static void |
5a49b8ac | 962 | tic54x_cons (int type) |
39bec121 | 963 | { |
f1e7a2c9 | 964 | unsigned int c; |
39bec121 TW |
965 | int octets; |
966 | ||
d0313fb7 | 967 | /* If we're within a .struct construct, don't actually allocate space. */ |
39bec121 TW |
968 | if (current_stag != NULL) |
969 | { | |
970 | tic54x_struct_field (type); | |
971 | return; | |
972 | } | |
973 | ||
974 | #ifdef md_flush_pending_output | |
975 | md_flush_pending_output (); | |
976 | #endif | |
977 | ||
978 | generate_lineno_debug (); | |
979 | ||
d0313fb7 | 980 | /* Align long words to long word boundaries (4 octets). */ |
39bec121 TW |
981 | if (type == 'l' || type == 'L') |
982 | { | |
983 | frag_align (2, 0, 2); | |
d0313fb7 | 984 | /* If there's a label, assign it to the first allocated word. */ |
39bec121 | 985 | if (line_label != NULL) |
9a736b6b NC |
986 | { |
987 | symbol_set_frag (line_label, frag_now); | |
988 | S_SET_VALUE (line_label, frag_now_fix ()); | |
989 | } | |
39bec121 TW |
990 | } |
991 | ||
992 | switch (type) | |
993 | { | |
994 | case 'l': | |
995 | case 'L': | |
996 | case 'x': | |
997 | octets = 4; | |
998 | break; | |
999 | case 'b': | |
1000 | case 'B': | |
1001 | case 'c': | |
1002 | case 'C': | |
1003 | octets = 1; | |
1004 | break; | |
1005 | default: | |
1006 | octets = 2; | |
1007 | break; | |
1008 | } | |
1009 | ||
1010 | do | |
1011 | { | |
1012 | if (*input_line_pointer == '"') | |
1013 | { | |
1014 | input_line_pointer++; | |
1015 | while (is_a_char (c = next_char_of_string ())) | |
1016 | tic54x_emit_char (c); | |
1017 | know (input_line_pointer[-1] == '\"'); | |
1018 | } | |
1019 | else | |
1020 | { | |
1021 | expressionS exp; | |
1022 | ||
1023 | input_line_pointer = parse_expression (input_line_pointer, &exp); | |
1024 | if (exp.X_op == O_constant) | |
1025 | { | |
9a736b6b NC |
1026 | offsetT value = exp.X_add_number; |
1027 | /* Truncate overflows. */ | |
39bec121 TW |
1028 | switch (octets) |
1029 | { | |
1030 | case 1: | |
9a736b6b NC |
1031 | if ((value > 0 && value > 0xFF) |
1032 | || (value < 0 && value < - 0x100)) | |
1033 | as_warn ("Overflow in expression, truncated to 8 bits"); | |
39bec121 TW |
1034 | break; |
1035 | case 2: | |
9a736b6b NC |
1036 | if ((value > 0 && value > 0xFFFF) |
1037 | || (value < 0 && value < - 0x10000)) | |
1038 | as_warn ("Overflow in expression, truncated to 16 bits"); | |
39bec121 TW |
1039 | break; |
1040 | } | |
1041 | } | |
9a736b6b NC |
1042 | if (exp.X_op != O_constant && octets < 2) |
1043 | { | |
1044 | /* Disallow .byte with a non constant expression that will | |
1045 | require relocation. */ | |
1046 | as_bad (_("Relocatable values require at least WORD storage")); | |
1047 | ignore_rest_of_line (); | |
1048 | return; | |
1049 | } | |
1050 | ||
1051 | if (exp.X_op != O_constant | |
1052 | && amode == c_mode | |
1053 | && octets == 4) | |
1054 | { | |
1055 | /* FIXME -- at one point TI tools used to output REL16 | |
1056 | relocations, but I don't think the latest tools do at all | |
1057 | The current tools output extended relocations regardless of | |
33b7f697 | 1058 | the addressing mode (I actually think that ".c_mode" is |
9a736b6b NC |
1059 | totally ignored in the latest tools). */ |
1060 | amode = far_mode; | |
1061 | emitting_long = 1; | |
1062 | emit_expr (&exp, 4); | |
1063 | emitting_long = 0; | |
1064 | amode = c_mode; | |
1065 | } | |
1066 | else | |
1067 | { | |
1068 | emitting_long = octets == 4; | |
1069 | emit_expr (&exp, (octets == 1) ? 2 : octets); | |
1070 | emitting_long = 0; | |
1071 | } | |
39bec121 TW |
1072 | } |
1073 | } | |
1074 | while (*input_line_pointer++ == ','); | |
1075 | ||
1076 | input_line_pointer--; /* Put terminator back into stream. */ | |
1077 | demand_empty_rest_of_line (); | |
1078 | } | |
1079 | ||
1080 | /* .global <symbol>[,...,<symbolN>] | |
1081 | .def <symbol>[,...,<symbolN>] | |
1082 | .ref <symbol>[,...,<symbolN>] | |
1083 | ||
1aea3bb8 | 1084 | These all identify global symbols. |
39bec121 TW |
1085 | |
1086 | .def means the symbol is defined in the current module and can be accessed | |
1087 | by other files. The symbol should be placed in the symbol table. | |
1088 | ||
1089 | .ref means the symbol is used in the current module but defined in another | |
1090 | module. The linker is to resolve this symbol's definition at link time. | |
1091 | ||
1092 | .global should act as a .ref or .def, as needed. | |
1093 | ||
1aea3bb8 | 1094 | global, def and ref all have symbol storage classes of C_EXT. |
39bec121 TW |
1095 | |
1096 | I can't identify any difference in how the "other" c54x assembler treats | |
d0313fb7 | 1097 | these, so we ignore the type here. */ |
9a736b6b | 1098 | |
39bec121 | 1099 | void |
5a49b8ac | 1100 | tic54x_global (int type) |
39bec121 TW |
1101 | { |
1102 | char *name; | |
1103 | int c; | |
1104 | symbolS *symbolP; | |
1105 | ||
1106 | if (type == 'r') | |
9a736b6b | 1107 | as_warn (_("Use of .def/.ref is deprecated. Use .global instead")); |
39bec121 TW |
1108 | |
1109 | ILLEGAL_WITHIN_STRUCT (); | |
1110 | ||
1111 | do | |
1112 | { | |
1113 | name = input_line_pointer; | |
1114 | c = get_symbol_end (); | |
1115 | symbolP = symbol_find_or_make (name); | |
1116 | ||
1117 | *input_line_pointer = c; | |
1118 | S_SET_STORAGE_CLASS (symbolP, C_EXT); | |
1119 | if (c == ',') | |
1120 | { | |
1121 | input_line_pointer++; | |
1aea3bb8 | 1122 | if (is_end_of_line[(int) *input_line_pointer]) |
39bec121 TW |
1123 | c = *input_line_pointer; |
1124 | } | |
1125 | } | |
1126 | while (c == ','); | |
1127 | ||
1128 | demand_empty_rest_of_line (); | |
1129 | } | |
1130 | ||
d0313fb7 | 1131 | /* Remove the symbol from the local label hash lookup. */ |
9a736b6b | 1132 | |
39bec121 | 1133 | static void |
5a49b8ac | 1134 | tic54x_remove_local_label (const char *key, void *value ATTRIBUTE_UNUSED) |
39bec121 | 1135 | { |
5a49b8ac | 1136 | void *elem = hash_delete (local_label_hash[macro_level], key, FALSE); |
39bec121 TW |
1137 | free (elem); |
1138 | } | |
1139 | ||
d0313fb7 | 1140 | /* Reset all local labels. */ |
9a736b6b | 1141 | |
1aea3bb8 | 1142 | static void |
5a49b8ac | 1143 | tic54x_clear_local_labels (int ignored ATTRIBUTE_UNUSED) |
39bec121 TW |
1144 | { |
1145 | hash_traverse (local_label_hash[macro_level], tic54x_remove_local_label); | |
1146 | } | |
1147 | ||
d0313fb7 | 1148 | /* .text |
39bec121 TW |
1149 | .data |
1150 | .sect "section name" | |
1151 | ||
1152 | Initialized section | |
1aea3bb8 | 1153 | make sure local labels get cleared when changing sections |
39bec121 TW |
1154 | |
1155 | ARG is 't' for text, 'd' for data, or '*' for a named section | |
1156 | ||
6e917903 TW |
1157 | For compatibility, '*' sections are SEC_CODE if instructions are |
1158 | encountered, or SEC_DATA if not. | |
1159 | */ | |
9a736b6b | 1160 | |
39bec121 | 1161 | static void |
5a49b8ac | 1162 | tic54x_sect (int arg) |
39bec121 TW |
1163 | { |
1164 | ILLEGAL_WITHIN_STRUCT (); | |
1165 | ||
d0313fb7 | 1166 | /* Local labels are cleared when changing sections. */ |
39bec121 TW |
1167 | tic54x_clear_local_labels (0); |
1168 | ||
1169 | if (arg == 't') | |
1170 | s_text (0); | |
1171 | else if (arg == 'd') | |
1172 | s_data (0); | |
1173 | else | |
1174 | { | |
1175 | char *name = NULL; | |
1176 | int len; | |
f1e7a2c9 | 1177 | |
d0313fb7 | 1178 | /* If there are quotes, remove them. */ |
39bec121 | 1179 | if (*input_line_pointer == '"') |
9a736b6b NC |
1180 | { |
1181 | name = demand_copy_C_string (&len); | |
1182 | demand_empty_rest_of_line (); | |
1183 | name = strcpy (xmalloc (len + 10), name); | |
1184 | } | |
1aea3bb8 | 1185 | else |
9a736b6b NC |
1186 | { |
1187 | int c; | |
1188 | name = input_line_pointer; | |
1189 | c = get_symbol_end (); | |
6e917903 | 1190 | len = strlen(name); |
9a736b6b NC |
1191 | name = strcpy (xmalloc (len + 10), name); |
1192 | *input_line_pointer = c; | |
1193 | demand_empty_rest_of_line (); | |
1194 | } | |
6e917903 | 1195 | /* Make sure all named initialized sections flagged properly. If we |
f1e7a2c9 | 1196 | encounter instructions, we'll flag it with SEC_CODE as well. */ |
39bec121 TW |
1197 | strcat (name, ",\"w\"\n"); |
1198 | input_scrub_insert_line (name); | |
1199 | obj_coff_section (0); | |
1200 | ||
d0313fb7 | 1201 | /* If there was a line label, make sure that it gets assigned the proper |
9a736b6b NC |
1202 | section. This is for compatibility, even though the actual behavior |
1203 | is not explicitly defined. For consistency, we make .sect behave | |
1204 | like .usect, since that is probably what people expect. */ | |
39bec121 | 1205 | if (line_label != NULL) |
9a736b6b NC |
1206 | { |
1207 | S_SET_SEGMENT (line_label, now_seg); | |
1208 | symbol_set_frag (line_label, frag_now); | |
1209 | S_SET_VALUE (line_label, frag_now_fix ()); | |
1210 | if (S_GET_STORAGE_CLASS (line_label) != C_EXT) | |
1211 | S_SET_STORAGE_CLASS (line_label, C_LABEL); | |
1212 | } | |
39bec121 TW |
1213 | } |
1214 | } | |
1215 | ||
1aea3bb8 | 1216 | /* [symbol] .space space_in_bits |
39bec121 | 1217 | [symbol] .bes space_in_bits |
1aea3bb8 | 1218 | BES puts the symbol at the *last* word allocated |
39bec121 | 1219 | |
d0313fb7 | 1220 | cribbed from s_space. */ |
9a736b6b | 1221 | |
39bec121 | 1222 | static void |
5a49b8ac | 1223 | tic54x_space (int arg) |
39bec121 TW |
1224 | { |
1225 | expressionS exp; | |
1226 | char *p = 0; | |
1227 | int octets = 0; | |
1228 | long words; | |
1229 | int bits_per_byte = (OCTETS_PER_BYTE * 8); | |
1230 | int bit_offset = 0; | |
1231 | symbolS *label = line_label; | |
1232 | int bes = arg; | |
1233 | ||
1234 | ILLEGAL_WITHIN_STRUCT (); | |
1235 | ||
1236 | #ifdef md_flush_pending_output | |
1237 | md_flush_pending_output (); | |
1238 | #endif | |
1239 | ||
d0313fb7 | 1240 | /* Read the bit count. */ |
39bec121 TW |
1241 | expression (&exp); |
1242 | ||
d0313fb7 | 1243 | /* Some expressions are unresolvable until later in the assembly pass; |
39bec121 | 1244 | postpone until relaxation/fixup. we also have to postpone if a previous |
d0313fb7 | 1245 | partial allocation has not been completed yet. */ |
39bec121 TW |
1246 | if (exp.X_op != O_constant || frag_bit_offset (frag_now, now_seg) == -1) |
1247 | { | |
1248 | struct bit_info *bi = xmalloc (sizeof (struct bit_info)); | |
1249 | char *p; | |
1250 | ||
1251 | bi->seg = now_seg; | |
1252 | bi->type = bes; | |
1253 | bi->sym = label; | |
1aea3bb8 | 1254 | p = frag_var (rs_machine_dependent, |
9a736b6b NC |
1255 | 65536 * 2, 1, (relax_substateT) 0, |
1256 | make_expr_symbol (&exp), (offsetT) 0, | |
1257 | (char *) bi); | |
39bec121 | 1258 | if (p) |
9a736b6b | 1259 | *p = 0; |
39bec121 TW |
1260 | |
1261 | return; | |
1262 | } | |
1263 | ||
d0313fb7 NC |
1264 | /* Reduce the required size by any bit offsets currently left over |
1265 | from a previous .space/.bes/.field directive. */ | |
39bec121 TW |
1266 | bit_offset = frag_now->tc_frag_data; |
1267 | if (bit_offset != 0 && bit_offset < 16) | |
1268 | { | |
1269 | int spare_bits = bits_per_byte - bit_offset; | |
f1e7a2c9 | 1270 | |
39bec121 | 1271 | if (spare_bits >= exp.X_add_number) |
9a736b6b NC |
1272 | { |
1273 | /* Don't have to do anything; sufficient bits have already been | |
1274 | allocated; just point the label to the right place. */ | |
1275 | if (label != NULL) | |
1276 | { | |
1277 | symbol_set_frag (label, frag_now); | |
1278 | S_SET_VALUE (label, frag_now_fix () - 1); | |
1279 | label = NULL; | |
1280 | } | |
1281 | frag_now->tc_frag_data += exp.X_add_number; | |
1282 | goto getout; | |
1283 | } | |
39bec121 | 1284 | exp.X_add_number -= spare_bits; |
d0313fb7 | 1285 | /* Set the label to point to the first word allocated, which in this |
9a736b6b | 1286 | case is the previous word, which was only partially filled. */ |
39bec121 | 1287 | if (!bes && label != NULL) |
9a736b6b NC |
1288 | { |
1289 | symbol_set_frag (label, frag_now); | |
1290 | S_SET_VALUE (label, frag_now_fix () - 1); | |
1291 | label = NULL; | |
1292 | } | |
39bec121 | 1293 | } |
d0313fb7 | 1294 | /* Convert bits to bytes/words and octets, rounding up. */ |
39bec121 | 1295 | words = ((exp.X_add_number + bits_per_byte - 1) / bits_per_byte); |
d0313fb7 | 1296 | /* How many do we have left over? */ |
39bec121 TW |
1297 | bit_offset = exp.X_add_number % bits_per_byte; |
1298 | octets = words * OCTETS_PER_BYTE; | |
1299 | if (octets < 0) | |
1300 | { | |
1301 | as_warn (_(".space/.bes repeat count is negative, ignored")); | |
1302 | goto getout; | |
1303 | } | |
1304 | else if (octets == 0) | |
1305 | { | |
1306 | as_warn (_(".space/.bes repeat count is zero, ignored")); | |
1307 | goto getout; | |
1308 | } | |
1aea3bb8 | 1309 | |
39bec121 TW |
1310 | /* If we are in the absolute section, just bump the offset. */ |
1311 | if (now_seg == absolute_section) | |
1312 | { | |
1313 | abs_section_offset += words; | |
1314 | if (bes && label != NULL) | |
9a736b6b | 1315 | S_SET_VALUE (label, abs_section_offset - 1); |
39bec121 TW |
1316 | frag_now->tc_frag_data = bit_offset; |
1317 | goto getout; | |
1318 | } | |
1aea3bb8 | 1319 | |
39bec121 | 1320 | if (!need_pass_2) |
1aea3bb8 | 1321 | p = frag_var (rs_fill, 1, 1, |
9a736b6b NC |
1322 | (relax_substateT) 0, (symbolS *) 0, |
1323 | (offsetT) octets, (char *) 0); | |
39bec121 | 1324 | |
d0313fb7 | 1325 | /* Make note of how many bits of this word we've allocated so far. */ |
39bec121 TW |
1326 | frag_now->tc_frag_data = bit_offset; |
1327 | ||
d0313fb7 | 1328 | /* .bes puts label at *last* word allocated. */ |
39bec121 TW |
1329 | if (bes && label != NULL) |
1330 | { | |
1331 | symbol_set_frag (label, frag_now); | |
1aea3bb8 | 1332 | S_SET_VALUE (label, frag_now_fix () - 1); |
39bec121 | 1333 | } |
1aea3bb8 | 1334 | |
39bec121 TW |
1335 | if (p) |
1336 | *p = 0; | |
1337 | ||
1338 | getout: | |
1339 | ||
1340 | demand_empty_rest_of_line (); | |
1341 | } | |
1342 | ||
1aea3bb8 | 1343 | /* [symbol] .usect "section-name", size-in-words |
9a736b6b | 1344 | [, [blocking-flag] [, alignment-flag]] |
39bec121 | 1345 | |
33b7f697 | 1346 | Uninitialized section. |
39bec121 TW |
1347 | Non-zero blocking means that if the section would cross a page (128-word) |
1348 | boundary, it will be page-aligned. | |
1349 | Non-zero alignment aligns on a longword boundary. | |
1350 | ||
d0313fb7 | 1351 | Has no effect on the current section. */ |
9a736b6b | 1352 | |
1aea3bb8 | 1353 | static void |
5a49b8ac | 1354 | tic54x_usect (int x ATTRIBUTE_UNUSED) |
39bec121 TW |
1355 | { |
1356 | char c; | |
1357 | char *name; | |
1358 | char *section_name; | |
1359 | char *p; | |
1360 | segT seg; | |
1361 | int size, blocking_flag, alignment_flag; | |
1362 | segT current_seg; | |
1363 | subsegT current_subseg; | |
1364 | flagword flags; | |
1365 | ||
1366 | ILLEGAL_WITHIN_STRUCT (); | |
1367 | ||
9a736b6b NC |
1368 | current_seg = now_seg; /* Save current seg. */ |
1369 | current_subseg = now_subseg; /* Save current subseg. */ | |
39bec121 TW |
1370 | |
1371 | if (*input_line_pointer == '"') | |
1372 | input_line_pointer++; | |
1373 | section_name = input_line_pointer; | |
1374 | c = get_symbol_end (); /* Get terminator. */ | |
1375 | input_line_pointer++; /* Skip null symbol terminator. */ | |
1376 | name = xmalloc (input_line_pointer - section_name + 1); | |
1377 | strcpy (name, section_name); | |
1378 | ||
1379 | if (*input_line_pointer == ',') | |
1380 | ++input_line_pointer; | |
1381 | else if (c != ',') | |
1382 | { | |
1383 | as_bad (_("Missing size argument")); | |
1384 | ignore_rest_of_line (); | |
1385 | return; | |
1386 | } | |
1387 | ||
1388 | size = get_absolute_expression (); | |
1389 | ||
d0313fb7 | 1390 | /* Read a possibly present third argument (blocking flag). */ |
39bec121 TW |
1391 | if (*input_line_pointer == ',') |
1392 | { | |
1393 | ++input_line_pointer; | |
1394 | if (*input_line_pointer != ',') | |
9a736b6b | 1395 | blocking_flag = get_absolute_expression (); |
39bec121 | 1396 | else |
9a736b6b | 1397 | blocking_flag = 0; |
39bec121 | 1398 | |
d0313fb7 | 1399 | /* Read a possibly present fourth argument (alignment flag). */ |
39bec121 | 1400 | if (*input_line_pointer == ',') |
9a736b6b NC |
1401 | { |
1402 | ++input_line_pointer; | |
1403 | alignment_flag = get_absolute_expression (); | |
1404 | } | |
39bec121 | 1405 | else |
9a736b6b | 1406 | alignment_flag = 0; |
39bec121 TW |
1407 | } |
1408 | else | |
1409 | blocking_flag = alignment_flag = 0; | |
1410 | ||
1411 | seg = subseg_new (name, 0); | |
1412 | flags = bfd_get_section_flags (stdoutput, seg) | SEC_ALLOC; | |
1413 | ||
1414 | if (alignment_flag) | |
1415 | { | |
d0313fb7 | 1416 | /* s_align eats end of line; restore it. */ |
39bec121 TW |
1417 | s_align_bytes (4); |
1418 | --input_line_pointer; | |
1419 | } | |
1420 | ||
1421 | if (line_label != NULL) | |
1422 | { | |
1423 | S_SET_SEGMENT (line_label, seg); | |
1424 | symbol_set_frag (line_label, frag_now); | |
1425 | S_SET_VALUE (line_label, frag_now_fix ()); | |
9a736b6b | 1426 | /* Set scl to label, since that's what TI does. */ |
39bec121 | 1427 | if (S_GET_STORAGE_CLASS (line_label) != C_EXT) |
9a736b6b | 1428 | S_SET_STORAGE_CLASS (line_label, C_LABEL); |
39bec121 TW |
1429 | } |
1430 | ||
1431 | seg_info (seg)->bss = 1; /* Uninitialized data. */ | |
1432 | ||
1aea3bb8 | 1433 | p = frag_var (rs_fill, 1, 1, |
9a736b6b NC |
1434 | (relax_substateT) 0, (symbolS *) line_label, |
1435 | size * OCTETS_PER_BYTE, (char *) 0); | |
39bec121 TW |
1436 | *p = 0; |
1437 | ||
1438 | if (blocking_flag) | |
ebe372c1 | 1439 | flags |= SEC_TIC54X_BLOCK; |
39bec121 TW |
1440 | |
1441 | if (!bfd_set_section_flags (stdoutput, seg, flags)) | |
1442 | as_warn ("Error setting flags for \"%s\": %s", name, | |
1443 | bfd_errmsg (bfd_get_error ())); | |
1444 | ||
1445 | subseg_set (current_seg, current_subseg); /* Restore current seg. */ | |
1446 | demand_empty_rest_of_line (); | |
1aea3bb8 | 1447 | } |
39bec121 TW |
1448 | |
1449 | static enum cpu_version | |
5a49b8ac | 1450 | lookup_version (const char *ver) |
39bec121 TW |
1451 | { |
1452 | enum cpu_version version = VNONE; | |
1aea3bb8 | 1453 | |
39bec121 TW |
1454 | if (ver[0] == '5' && ver[1] == '4') |
1455 | { | |
9a736b6b NC |
1456 | if (strlen (ver) == 3 |
1457 | && (ver[2] == '1' || ver[2] == '2' || ver[2] == '3' | |
1458 | || ver[2] == '5' || ver[2] == '8' || ver[2] == '9')) | |
1459 | version = ver[2] - '0'; | |
1460 | else if (strlen (ver) == 5 | |
3882b010 L |
1461 | && TOUPPER (ver[3]) == 'L' |
1462 | && TOUPPER (ver[4]) == 'P' | |
9a736b6b NC |
1463 | && (ver[2] == '5' || ver[2] == '6')) |
1464 | version = ver[2] - '0' + 10; | |
39bec121 TW |
1465 | } |
1466 | ||
1467 | return version; | |
1468 | } | |
1469 | ||
1470 | static void | |
5a49b8ac | 1471 | set_cpu (enum cpu_version version) |
39bec121 TW |
1472 | { |
1473 | cpu = version; | |
1474 | if (version == V545LP || version == V546LP) | |
1475 | { | |
1476 | symbolS *symbolP = symbol_new ("__allow_lp", absolute_section, | |
9a736b6b | 1477 | (valueT) 1, &zero_address_frag); |
39bec121 TW |
1478 | SF_SET_LOCAL (symbolP); |
1479 | symbol_table_insert (symbolP); | |
1480 | } | |
1481 | } | |
1482 | ||
1aea3bb8 | 1483 | /* .version cpu-version |
39bec121 TW |
1484 | cpu-version may be one of the following: |
1485 | 541 | |
1486 | 542 | |
1487 | 543 | |
1488 | 545 | |
1489 | 545LP | |
1490 | 546LP | |
1491 | 548 | |
1492 | 549 | |
1493 | ||
d0313fb7 | 1494 | This is for compatibility only. It currently has no affect on assembly. */ |
39bec121 | 1495 | static int cpu_needs_set = 1; |
d0313fb7 | 1496 | |
1aea3bb8 | 1497 | static void |
5a49b8ac | 1498 | tic54x_version (int x ATTRIBUTE_UNUSED) |
39bec121 TW |
1499 | { |
1500 | enum cpu_version version = VNONE; | |
1501 | enum cpu_version old_version = cpu; | |
1502 | int c; | |
1503 | char *ver; | |
1504 | ||
1505 | ILLEGAL_WITHIN_STRUCT (); | |
1506 | ||
1507 | SKIP_WHITESPACE (); | |
1508 | ver = input_line_pointer; | |
1aea3bb8 | 1509 | while (!is_end_of_line[(int) *input_line_pointer]) |
39bec121 TW |
1510 | ++input_line_pointer; |
1511 | c = *input_line_pointer; | |
1512 | *input_line_pointer = 0; | |
1aea3bb8 | 1513 | |
39bec121 TW |
1514 | version = lookup_version (ver); |
1515 | ||
1516 | if (cpu != VNONE && cpu != version) | |
1517 | as_warn (_("CPU version has already been set")); | |
1518 | ||
1519 | if (version == VNONE) | |
1520 | { | |
1521 | as_bad (_("Unrecognized version '%s'"), ver); | |
1522 | ignore_rest_of_line (); | |
1523 | return; | |
1524 | } | |
1525 | else if (assembly_begun && version != old_version) | |
1526 | { | |
1527 | as_bad (_("Changing of CPU version on the fly not supported")); | |
1528 | ignore_rest_of_line (); | |
1529 | return; | |
1530 | } | |
1531 | ||
1532 | set_cpu (version); | |
1533 | ||
1534 | *input_line_pointer = c; | |
1535 | demand_empty_rest_of_line (); | |
1536 | } | |
1537 | ||
d0313fb7 | 1538 | /* 'f' = float, 'x' = xfloat, 'd' = double, 'l' = ldouble. */ |
9a736b6b | 1539 | |
39bec121 | 1540 | static void |
5a49b8ac | 1541 | tic54x_float_cons (int type) |
39bec121 TW |
1542 | { |
1543 | if (current_stag != 0) | |
d0313fb7 | 1544 | tic54x_struct_field ('f'); |
39bec121 TW |
1545 | |
1546 | #ifdef md_flush_pending_output | |
1547 | md_flush_pending_output (); | |
1548 | #endif | |
1aea3bb8 | 1549 | |
d0313fb7 | 1550 | /* Align to long word boundary (4 octets) unless it's ".xfloat". */ |
39bec121 TW |
1551 | if (type != 'x') |
1552 | { | |
1553 | frag_align (2, 0, 2); | |
d0313fb7 | 1554 | /* If there's a label, assign it to the first allocated word. */ |
39bec121 | 1555 | if (line_label != NULL) |
9a736b6b NC |
1556 | { |
1557 | symbol_set_frag (line_label, frag_now); | |
1558 | S_SET_VALUE (line_label, frag_now_fix ()); | |
1559 | } | |
39bec121 TW |
1560 | } |
1561 | ||
1562 | float_cons ('f'); | |
1563 | } | |
1564 | ||
1aea3bb8 | 1565 | /* The argument is capitalized if it should be zero-terminated |
39bec121 | 1566 | 's' is normal string with upper 8-bits zero-filled, 'p' is packed. |
5d6255fe | 1567 | Code copied from stringer, and slightly modified so that strings are packed |
d0313fb7 | 1568 | and encoded into the correct octets. */ |
9a736b6b | 1569 | |
39bec121 | 1570 | static void |
5a49b8ac | 1571 | tic54x_stringer (int type) |
39bec121 | 1572 | { |
f1e7a2c9 | 1573 | unsigned int c; |
39bec121 TW |
1574 | char *start; |
1575 | int append_zero = type == 'S' || type == 'P'; | |
1576 | int packed = type == 'p' || type == 'P'; | |
d0313fb7 | 1577 | int last_char = -1; /* Packed strings need two bytes at a time to encode. */ |
39bec121 TW |
1578 | |
1579 | if (current_stag != NULL) | |
1580 | { | |
1581 | tic54x_struct_field ('*'); | |
1582 | return; | |
1583 | } | |
1584 | ||
1585 | #ifdef md_flush_pending_output | |
1586 | md_flush_pending_output (); | |
1587 | #endif | |
1588 | ||
1dab94dd | 1589 | c = ','; /* Do loop. */ |
39bec121 TW |
1590 | while (c == ',') |
1591 | { | |
1592 | SKIP_WHITESPACE (); | |
1593 | switch (*input_line_pointer) | |
1594 | { | |
9a736b6b NC |
1595 | default: |
1596 | { | |
1597 | unsigned short value = get_absolute_expression (); | |
1598 | FRAG_APPEND_1_CHAR ( value & 0xFF); | |
1599 | FRAG_APPEND_1_CHAR ((value >> 8) & 0xFF); | |
1600 | break; | |
1601 | } | |
39bec121 | 1602 | case '\"': |
9a736b6b | 1603 | ++input_line_pointer; /* -> 1st char of string. */ |
39bec121 TW |
1604 | start = input_line_pointer; |
1605 | while (is_a_char (c = next_char_of_string ())) | |
1606 | { | |
9a736b6b NC |
1607 | if (!packed) |
1608 | { | |
1609 | FRAG_APPEND_1_CHAR (c); | |
1610 | FRAG_APPEND_1_CHAR (0); | |
1611 | } | |
1612 | else | |
1613 | { | |
1614 | /* Packed strings are filled MS octet first. */ | |
1615 | if (last_char == -1) | |
1616 | last_char = c; | |
1617 | else | |
1618 | { | |
1619 | FRAG_APPEND_1_CHAR (c); | |
1620 | FRAG_APPEND_1_CHAR (last_char); | |
1621 | last_char = -1; | |
1622 | } | |
1623 | } | |
39bec121 TW |
1624 | } |
1625 | if (append_zero) | |
9a736b6b NC |
1626 | { |
1627 | if (packed && last_char != -1) | |
1628 | { | |
1629 | FRAG_APPEND_1_CHAR (0); | |
1630 | FRAG_APPEND_1_CHAR (last_char); | |
1631 | last_char = -1; | |
1632 | } | |
1633 | else | |
1634 | { | |
1635 | FRAG_APPEND_1_CHAR (0); | |
1636 | FRAG_APPEND_1_CHAR (0); | |
1637 | } | |
1638 | } | |
39bec121 TW |
1639 | know (input_line_pointer[-1] == '\"'); |
1640 | break; | |
1641 | } | |
1642 | SKIP_WHITESPACE (); | |
1643 | c = *input_line_pointer; | |
1644 | if (!is_end_of_line[c]) | |
9a736b6b | 1645 | ++input_line_pointer; |
39bec121 TW |
1646 | } |
1647 | ||
d0313fb7 | 1648 | /* Finish up any leftover packed string. */ |
39bec121 TW |
1649 | if (packed && last_char != -1) |
1650 | { | |
1651 | FRAG_APPEND_1_CHAR (0); | |
1652 | FRAG_APPEND_1_CHAR (last_char); | |
1653 | } | |
1654 | demand_empty_rest_of_line (); | |
1655 | } | |
1656 | ||
1657 | static void | |
5a49b8ac | 1658 | tic54x_p2align (int arg ATTRIBUTE_UNUSED) |
39bec121 TW |
1659 | { |
1660 | as_bad (_("p2align not supported on this target")); | |
1661 | } | |
1662 | ||
1663 | static void | |
5a49b8ac | 1664 | tic54x_align_words (int arg) |
39bec121 | 1665 | { |
d0313fb7 | 1666 | /* Only ".align" with no argument is allowed within .struct/.union. */ |
39bec121 TW |
1667 | int count = arg; |
1668 | ||
1aea3bb8 | 1669 | if (!is_end_of_line[(int) *input_line_pointer]) |
39bec121 TW |
1670 | { |
1671 | if (arg == 2) | |
9a736b6b | 1672 | as_warn (_("Argument to .even ignored")); |
39bec121 | 1673 | else |
9a736b6b | 1674 | count = get_absolute_expression (); |
39bec121 TW |
1675 | } |
1676 | ||
1677 | if (current_stag != NULL && arg == 128) | |
1678 | { | |
1679 | if (current_stag->current_bitfield_offset != 0) | |
9a736b6b NC |
1680 | { |
1681 | current_stag->current_bitfield_offset = 0; | |
1682 | ++abs_section_offset; | |
1683 | } | |
39bec121 TW |
1684 | demand_empty_rest_of_line (); |
1685 | return; | |
1686 | } | |
1687 | ||
1688 | ILLEGAL_WITHIN_STRUCT (); | |
1689 | ||
1690 | s_align_bytes (count << 1); | |
1691 | } | |
1692 | ||
d0313fb7 | 1693 | /* Initialize multiple-bit fields withing a single word of memory. */ |
9a736b6b | 1694 | |
39bec121 | 1695 | static void |
5a49b8ac | 1696 | tic54x_field (int ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
1697 | { |
1698 | expressionS exp; | |
1699 | int size = 16; | |
1700 | char *p; | |
1701 | valueT value; | |
1702 | symbolS *label = line_label; | |
1703 | ||
1704 | if (current_stag != NULL) | |
1705 | { | |
1706 | tic54x_struct_field ('.'); | |
1707 | return; | |
1708 | } | |
1709 | ||
1710 | input_line_pointer = parse_expression (input_line_pointer, &exp); | |
1711 | ||
1712 | if (*input_line_pointer == ',') | |
1713 | { | |
1714 | ++input_line_pointer; | |
1715 | size = get_absolute_expression (); | |
1716 | if (size < 1 || size > 32) | |
9a736b6b NC |
1717 | { |
1718 | as_bad (_("Invalid field size, must be from 1 to 32")); | |
1719 | ignore_rest_of_line (); | |
1720 | return; | |
1721 | } | |
39bec121 TW |
1722 | } |
1723 | ||
d0313fb7 | 1724 | /* Truncate values to the field width. */ |
39bec121 TW |
1725 | if (exp.X_op != O_constant) |
1726 | { | |
9a736b6b NC |
1727 | /* If the expression value is relocatable, the field size *must* |
1728 | be 16. */ | |
39bec121 | 1729 | if (size != 16) |
9a736b6b NC |
1730 | { |
1731 | as_bad (_("field size must be 16 when value is relocatable")); | |
1732 | ignore_rest_of_line (); | |
1733 | return; | |
1734 | } | |
39bec121 TW |
1735 | |
1736 | frag_now->tc_frag_data = 0; | |
1737 | emit_expr (&exp, 2); | |
1738 | } | |
1739 | else | |
1740 | { | |
1741 | unsigned long fmask = (size == 32) ? 0xFFFFFFFF : (1ul << size) - 1; | |
f1e7a2c9 | 1742 | |
39bec121 TW |
1743 | value = exp.X_add_number; |
1744 | exp.X_add_number &= fmask; | |
1aea3bb8 | 1745 | if (value != (valueT) exp.X_add_number) |
9a736b6b | 1746 | as_warn (_("field value truncated")); |
39bec121 | 1747 | value = exp.X_add_number; |
d0313fb7 | 1748 | /* Bits are stored MS first. */ |
39bec121 | 1749 | while (size >= 16) |
9a736b6b NC |
1750 | { |
1751 | frag_now->tc_frag_data = 0; | |
1752 | p = frag_more (2); | |
1753 | md_number_to_chars (p, (value >> (size - 16)) & 0xFFFF, 2); | |
1754 | size -= 16; | |
1755 | } | |
39bec121 | 1756 | if (size > 0) |
9a736b6b NC |
1757 | { |
1758 | int bit_offset = frag_bit_offset (frag_now, now_seg); | |
f1e7a2c9 | 1759 | |
9a736b6b NC |
1760 | fragS *alloc_frag = bit_offset_frag (frag_now, now_seg); |
1761 | if (bit_offset == -1) | |
1762 | { | |
1763 | struct bit_info *bi = xmalloc (sizeof (struct bit_info)); | |
1764 | /* We don't know the previous offset at this time, so store the | |
1765 | info we need and figure it out later. */ | |
1766 | expressionS size_exp; | |
f1e7a2c9 | 1767 | |
9a736b6b NC |
1768 | size_exp.X_op = O_constant; |
1769 | size_exp.X_add_number = size; | |
1770 | bi->seg = now_seg; | |
1771 | bi->type = TYPE_FIELD; | |
1772 | bi->value = value; | |
1773 | p = frag_var (rs_machine_dependent, | |
1774 | 4, 1, (relax_substateT) 0, | |
1775 | make_expr_symbol (&size_exp), (offsetT) 0, | |
1776 | (char *) bi); | |
1777 | goto getout; | |
1778 | } | |
1779 | else if (bit_offset == 0 || bit_offset + size > 16) | |
1780 | { | |
1781 | /* Align a new field. */ | |
1782 | p = frag_more (2); | |
1783 | frag_now->tc_frag_data = 0; | |
1784 | alloc_frag = frag_now; | |
1785 | } | |
1786 | else | |
1787 | { | |
1788 | /* Put the new value entirely within the existing one. */ | |
1789 | p = alloc_frag == frag_now ? | |
1790 | frag_now->fr_literal + frag_now_fix_octets () - 2 : | |
1791 | alloc_frag->fr_literal; | |
1792 | if (label != NULL) | |
1793 | { | |
1794 | symbol_set_frag (label, alloc_frag); | |
1795 | if (alloc_frag == frag_now) | |
1796 | S_SET_VALUE (label, frag_now_fix () - 1); | |
1797 | label = NULL; | |
1798 | } | |
1799 | } | |
1800 | value <<= 16 - alloc_frag->tc_frag_data - size; | |
1801 | ||
1802 | /* OR in existing value. */ | |
1803 | if (alloc_frag->tc_frag_data) | |
1804 | value |= ((unsigned short) p[1] << 8) | p[0]; | |
1805 | md_number_to_chars (p, value, 2); | |
1806 | alloc_frag->tc_frag_data += size; | |
1807 | if (alloc_frag->tc_frag_data == 16) | |
1808 | alloc_frag->tc_frag_data = 0; | |
1809 | } | |
39bec121 TW |
1810 | } |
1811 | getout: | |
1812 | demand_empty_rest_of_line (); | |
1813 | } | |
1814 | ||
1815 | /* Ideally, we want to check SEC_LOAD and SEC_HAS_CONTENTS, but those aren't | |
d0313fb7 | 1816 | available yet. seg_info ()->bss is the next best thing. */ |
9a736b6b | 1817 | |
39bec121 | 1818 | static int |
5a49b8ac | 1819 | tic54x_initialized_section (segT seg) |
39bec121 TW |
1820 | { |
1821 | return !seg_info (seg)->bss; | |
1822 | } | |
1823 | ||
1aea3bb8 | 1824 | /* .clink ["section name"] |
39bec121 TW |
1825 | |
1826 | Marks the section as conditionally linked (link only if contents are | |
1827 | referenced elsewhere. | |
1828 | Without a name, refers to the current initialized section. | |
d0313fb7 | 1829 | Name is required for uninitialized sections. */ |
9a736b6b | 1830 | |
39bec121 | 1831 | static void |
5a49b8ac | 1832 | tic54x_clink (int ignored ATTRIBUTE_UNUSED) |
39bec121 TW |
1833 | { |
1834 | segT seg = now_seg; | |
1835 | ||
1836 | ILLEGAL_WITHIN_STRUCT (); | |
1837 | ||
1838 | if (*input_line_pointer == '\"') | |
1839 | { | |
1840 | char *section_name = ++input_line_pointer; | |
1841 | char *name; | |
f1e7a2c9 | 1842 | |
39bec121 | 1843 | while (is_a_char (next_char_of_string ())) |
9a736b6b | 1844 | ; |
39bec121 TW |
1845 | know (input_line_pointer[-1] == '\"'); |
1846 | input_line_pointer[-1] = 0; | |
1847 | name = xmalloc (input_line_pointer - section_name + 1); | |
1848 | strcpy (name, section_name); | |
1849 | ||
1850 | seg = bfd_get_section_by_name (stdoutput, name); | |
1851 | if (seg == NULL) | |
9a736b6b NC |
1852 | { |
1853 | as_bad (_("Unrecognized section '%s'"), section_name); | |
1854 | ignore_rest_of_line (); | |
1855 | return; | |
1856 | } | |
39bec121 TW |
1857 | } |
1858 | else | |
1859 | { | |
1860 | if (!tic54x_initialized_section (seg)) | |
9a736b6b NC |
1861 | { |
1862 | as_bad (_("Current section is unitialized, " | |
1863 | "section name required for .clink")); | |
1864 | ignore_rest_of_line (); | |
1865 | return; | |
1866 | } | |
39bec121 TW |
1867 | } |
1868 | ||
ebe372c1 | 1869 | seg->flags |= SEC_TIC54X_CLINK; |
39bec121 TW |
1870 | |
1871 | demand_empty_rest_of_line (); | |
1872 | } | |
1873 | ||
d0313fb7 | 1874 | /* Change the default include directory to be the current source file's |
39bec121 | 1875 | directory, instead of the current working directory. If DOT is non-zero, |
d0313fb7 | 1876 | set to "." instead. */ |
9a736b6b | 1877 | |
39bec121 | 1878 | static void |
5a49b8ac | 1879 | tic54x_set_default_include (int dot) |
39bec121 TW |
1880 | { |
1881 | char *dir = "."; | |
1882 | char *tmp = NULL; | |
1aea3bb8 | 1883 | |
39bec121 TW |
1884 | if (!dot) |
1885 | { | |
1886 | char *curfile; | |
1887 | unsigned lineno; | |
1aea3bb8 | 1888 | |
39bec121 | 1889 | as_where (&curfile, &lineno); |
1aea3bb8 | 1890 | dir = strcpy (xmalloc (strlen (curfile) + 1), curfile); |
39bec121 TW |
1891 | tmp = strrchr (dir, '/'); |
1892 | } | |
1893 | if (tmp != NULL) | |
1894 | { | |
1895 | int len; | |
f1e7a2c9 | 1896 | |
39bec121 TW |
1897 | *tmp = '\0'; |
1898 | len = strlen (dir); | |
1899 | if (include_dir_count == 0) | |
9a736b6b NC |
1900 | { |
1901 | include_dirs = (char **) xmalloc (sizeof (*include_dirs)); | |
1902 | include_dir_count = 1; | |
1903 | } | |
39bec121 TW |
1904 | include_dirs[0] = dir; |
1905 | if (len > include_dir_maxlen) | |
9a736b6b | 1906 | include_dir_maxlen = len; |
39bec121 TW |
1907 | } |
1908 | else if (include_dirs != NULL) | |
1909 | include_dirs[0] = "."; | |
1910 | } | |
1911 | ||
1aea3bb8 | 1912 | /* .include "filename" | filename |
39bec121 TW |
1913 | .copy "filename" | filename |
1914 | ||
1aea3bb8 | 1915 | FIXME 'include' file should be omitted from any output listing, |
39bec121 TW |
1916 | 'copy' should be included in any output listing |
1917 | FIXME -- prevent any included files from changing listing (compat only) | |
1918 | FIXME -- need to include source file directory in search path; what's a | |
1919 | good way to do this? | |
1920 | ||
d0313fb7 | 1921 | Entering/exiting included/copied file clears all local labels. */ |
9a736b6b | 1922 | |
39bec121 | 1923 | static void |
5a49b8ac | 1924 | tic54x_include (int ignored ATTRIBUTE_UNUSED) |
39bec121 TW |
1925 | { |
1926 | char newblock[] = " .newblock\n"; | |
1927 | char *filename; | |
1928 | char *input; | |
1929 | int len, c = -1; | |
1930 | ||
1931 | ILLEGAL_WITHIN_STRUCT (); | |
1aea3bb8 | 1932 | |
39bec121 TW |
1933 | SKIP_WHITESPACE (); |
1934 | ||
1935 | if (*input_line_pointer == '"') | |
1936 | { | |
1937 | filename = demand_copy_C_string (&len); | |
1938 | demand_empty_rest_of_line (); | |
1939 | } | |
1940 | else | |
1941 | { | |
1942 | filename = input_line_pointer; | |
1aea3bb8 | 1943 | while (!is_end_of_line[(int) *input_line_pointer]) |
9a736b6b | 1944 | ++input_line_pointer; |
39bec121 TW |
1945 | c = *input_line_pointer; |
1946 | *input_line_pointer = '\0'; | |
1aea3bb8 | 1947 | filename = strcpy (xmalloc (strlen (filename) + 1), filename); |
39bec121 TW |
1948 | *input_line_pointer = c; |
1949 | demand_empty_rest_of_line (); | |
1950 | } | |
1951 | /* Insert a partial line with the filename (for the sake of s_include) | |
1952 | and a .newblock. | |
1953 | The included file will be inserted before the newblock, so that the | |
d0313fb7 | 1954 | newblock is executed after the included file is processed. */ |
39bec121 TW |
1955 | input = xmalloc (sizeof (newblock) + strlen (filename) + 4); |
1956 | sprintf (input, "\"%s\"\n%s", filename, newblock); | |
1957 | input_scrub_insert_line (input); | |
1958 | ||
1959 | tic54x_clear_local_labels (0); | |
1960 | ||
1961 | tic54x_set_default_include (0); | |
1962 | ||
1963 | s_include (0); | |
1964 | } | |
1965 | ||
1966 | static void | |
5a49b8ac | 1967 | tic54x_message (int type) |
39bec121 TW |
1968 | { |
1969 | char *msg; | |
1970 | char c; | |
1971 | int len; | |
1972 | ||
1973 | ILLEGAL_WITHIN_STRUCT (); | |
1974 | ||
1975 | if (*input_line_pointer == '"') | |
1976 | msg = demand_copy_C_string (&len); | |
1977 | else | |
1978 | { | |
1979 | msg = input_line_pointer; | |
1aea3bb8 | 1980 | while (!is_end_of_line[(int) *input_line_pointer]) |
9a736b6b | 1981 | ++input_line_pointer; |
39bec121 TW |
1982 | c = *input_line_pointer; |
1983 | *input_line_pointer = 0; | |
1984 | msg = strcpy (xmalloc (strlen (msg) + 1), msg); | |
1985 | *input_line_pointer = c; | |
1986 | } | |
1987 | ||
1988 | switch (type) | |
1989 | { | |
1990 | case 'm': | |
1991 | as_tsktsk ("%s", msg); | |
1992 | break; | |
1993 | case 'w': | |
1994 | as_warn ("%s", msg); | |
1995 | break; | |
1996 | case 'e': | |
1997 | as_bad ("%s", msg); | |
1998 | break; | |
1999 | } | |
2000 | ||
2001 | demand_empty_rest_of_line (); | |
2002 | } | |
2003 | ||
1aea3bb8 | 2004 | /* .label <symbol> |
9a736b6b | 2005 | Define a special symbol that refers to the loadtime address rather than the |
39bec121 TW |
2006 | runtime address within the current section. |
2007 | ||
2008 | This symbol gets a special storage class so that when it is resolved, it is | |
2009 | resolved relative to the load address (lma) of the section rather than the | |
d0313fb7 | 2010 | run address (vma). */ |
9a736b6b | 2011 | |
39bec121 | 2012 | static void |
5a49b8ac | 2013 | tic54x_label (int ignored ATTRIBUTE_UNUSED) |
39bec121 TW |
2014 | { |
2015 | char *name = input_line_pointer; | |
2016 | symbolS *symbolP; | |
2017 | int c; | |
2018 | ||
2019 | ILLEGAL_WITHIN_STRUCT (); | |
2020 | ||
2021 | c = get_symbol_end (); | |
2022 | symbolP = colon (name); | |
2023 | S_SET_STORAGE_CLASS (symbolP, C_STATLAB); | |
2024 | ||
2025 | *input_line_pointer = c; | |
2026 | demand_empty_rest_of_line (); | |
2027 | } | |
2028 | ||
d0313fb7 | 2029 | /* .mmregs |
9a736b6b NC |
2030 | Install all memory-mapped register names into the symbol table as |
2031 | absolute local symbols. */ | |
2032 | ||
39bec121 | 2033 | static void |
5a49b8ac | 2034 | tic54x_mmregs (int ignored ATTRIBUTE_UNUSED) |
39bec121 TW |
2035 | { |
2036 | symbol *sym; | |
2037 | ||
2038 | ILLEGAL_WITHIN_STRUCT (); | |
2039 | ||
1aea3bb8 | 2040 | for (sym = (symbol *) mmregs; sym->name; sym++) |
39bec121 TW |
2041 | { |
2042 | symbolS *symbolP = symbol_new (sym->name, absolute_section, | |
9a736b6b | 2043 | (valueT) sym->value, &zero_address_frag); |
39bec121 TW |
2044 | SF_SET_LOCAL (symbolP); |
2045 | symbol_table_insert (symbolP); | |
2046 | } | |
2047 | } | |
2048 | ||
d0313fb7 | 2049 | /* .loop [count] |
9a736b6b NC |
2050 | Count defaults to 1024. */ |
2051 | ||
39bec121 | 2052 | static void |
5a49b8ac | 2053 | tic54x_loop (int count) |
39bec121 TW |
2054 | { |
2055 | ILLEGAL_WITHIN_STRUCT (); | |
2056 | ||
2057 | SKIP_WHITESPACE (); | |
1aea3bb8 | 2058 | if (!is_end_of_line[(int) *input_line_pointer]) |
9a736b6b | 2059 | count = get_absolute_expression (); |
39bec121 TW |
2060 | |
2061 | do_repeat (count, "LOOP", "ENDLOOP"); | |
2062 | } | |
2063 | ||
d0313fb7 | 2064 | /* Normally, endloop gets eaten by the preceding loop. */ |
9a736b6b | 2065 | |
39bec121 | 2066 | static void |
5a49b8ac | 2067 | tic54x_endloop (int ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2068 | { |
2069 | as_bad (_("ENDLOOP without corresponding LOOP")); | |
2070 | ignore_rest_of_line (); | |
2071 | } | |
2072 | ||
d0313fb7 | 2073 | /* .break [condition]. */ |
9a736b6b | 2074 | |
39bec121 | 2075 | static void |
5a49b8ac | 2076 | tic54x_break (int ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2077 | { |
2078 | int cond = 1; | |
2079 | ||
2080 | ILLEGAL_WITHIN_STRUCT (); | |
2081 | ||
2082 | SKIP_WHITESPACE (); | |
1aea3bb8 | 2083 | if (!is_end_of_line[(int) *input_line_pointer]) |
9a736b6b NC |
2084 | cond = get_absolute_expression (); |
2085 | ||
39bec121 | 2086 | if (cond) |
9a736b6b | 2087 | end_repeat (substitution_line ? 1 : 0); |
39bec121 TW |
2088 | } |
2089 | ||
2090 | static void | |
5a49b8ac | 2091 | set_address_mode (int mode) |
39bec121 TW |
2092 | { |
2093 | amode = mode; | |
2094 | if (mode == far_mode) | |
2095 | { | |
1aea3bb8 | 2096 | symbolS *symbolP = symbol_new ("__allow_far", absolute_section, |
9a736b6b | 2097 | (valueT) 1, &zero_address_frag); |
39bec121 TW |
2098 | SF_SET_LOCAL (symbolP); |
2099 | symbol_table_insert (symbolP); | |
2100 | } | |
2101 | } | |
2102 | ||
2103 | static int address_mode_needs_set = 1; | |
f1e7a2c9 | 2104 | |
39bec121 | 2105 | static void |
5a49b8ac | 2106 | tic54x_address_mode (int mode) |
39bec121 | 2107 | { |
1aea3bb8 | 2108 | if (assembly_begun && amode != (unsigned) mode) |
39bec121 TW |
2109 | { |
2110 | as_bad (_("Mixing of normal and extended addressing not supported")); | |
2111 | ignore_rest_of_line (); | |
2112 | return; | |
2113 | } | |
2114 | if (mode == far_mode && cpu != VNONE && cpu != V548 && cpu != V549) | |
2115 | { | |
2116 | as_bad (_("Extended addressing not supported on the specified CPU")); | |
2117 | ignore_rest_of_line (); | |
2118 | return; | |
2119 | } | |
2120 | ||
2121 | set_address_mode (mode); | |
2122 | demand_empty_rest_of_line (); | |
2123 | } | |
2124 | ||
2125 | /* .sblock "section"|section [,...,"section"|section] | |
9a736b6b NC |
2126 | Designate initialized sections for blocking. */ |
2127 | ||
39bec121 | 2128 | static void |
5a49b8ac | 2129 | tic54x_sblock (int ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2130 | { |
2131 | int c = ','; | |
2132 | ||
2133 | ILLEGAL_WITHIN_STRUCT (); | |
2134 | ||
2135 | while (c == ',') | |
2136 | { | |
2137 | segT seg; | |
2138 | char *name; | |
1aea3bb8 | 2139 | |
39bec121 | 2140 | if (*input_line_pointer == '"') |
9a736b6b NC |
2141 | { |
2142 | int len; | |
f1e7a2c9 | 2143 | |
9a736b6b NC |
2144 | name = demand_copy_C_string (&len); |
2145 | } | |
39bec121 | 2146 | else |
9a736b6b NC |
2147 | { |
2148 | char *section_name = input_line_pointer; | |
f1e7a2c9 | 2149 | |
9a736b6b NC |
2150 | c = get_symbol_end (); |
2151 | name = xmalloc (strlen (section_name) + 1); | |
2152 | strcpy (name, section_name); | |
2153 | *input_line_pointer = c; | |
2154 | } | |
39bec121 TW |
2155 | |
2156 | seg = bfd_get_section_by_name (stdoutput, name); | |
2157 | if (seg == NULL) | |
9a736b6b NC |
2158 | { |
2159 | as_bad (_("Unrecognized section '%s'"), name); | |
2160 | ignore_rest_of_line (); | |
2161 | return; | |
2162 | } | |
39bec121 | 2163 | else if (!tic54x_initialized_section (seg)) |
9a736b6b NC |
2164 | { |
2165 | as_bad (_(".sblock may be used for initialized sections only")); | |
2166 | ignore_rest_of_line (); | |
2167 | return; | |
2168 | } | |
ebe372c1 | 2169 | seg->flags |= SEC_TIC54X_BLOCK; |
39bec121 TW |
2170 | |
2171 | c = *input_line_pointer; | |
1aea3bb8 | 2172 | if (!is_end_of_line[(int) c]) |
9a736b6b | 2173 | ++input_line_pointer; |
39bec121 TW |
2174 | } |
2175 | ||
2176 | demand_empty_rest_of_line (); | |
2177 | } | |
2178 | ||
2179 | /* symbol .set value | |
1aea3bb8 | 2180 | symbol .equ value |
39bec121 TW |
2181 | |
2182 | value must be defined externals; no forward-referencing allowed | |
d0313fb7 | 2183 | symbols assigned with .set/.equ may not be redefined. */ |
9a736b6b | 2184 | |
39bec121 | 2185 | static void |
5a49b8ac | 2186 | tic54x_set (int ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2187 | { |
2188 | symbolS *symbolP; | |
2189 | char *name; | |
2190 | ||
2191 | ILLEGAL_WITHIN_STRUCT (); | |
2192 | ||
2193 | if (!line_label) | |
2194 | { | |
2195 | as_bad (_("Symbol missing for .set/.equ")); | |
2196 | ignore_rest_of_line (); | |
2197 | return; | |
2198 | } | |
2199 | name = xstrdup (S_GET_NAME (line_label)); | |
2200 | line_label = NULL; | |
2201 | if ((symbolP = symbol_find (name)) == NULL | |
2202 | && (symbolP = md_undefined_symbol (name)) == NULL) | |
2203 | { | |
2204 | symbolP = symbol_new (name, absolute_section, 0, &zero_address_frag); | |
2205 | S_SET_STORAGE_CLASS (symbolP, C_STAT); | |
2206 | } | |
2207 | free (name); | |
2208 | S_SET_DATA_TYPE (symbolP, T_INT); | |
2209 | S_SET_SEGMENT (symbolP, absolute_section); | |
2210 | symbol_table_insert (symbolP); | |
2211 | pseudo_set (symbolP); | |
2212 | demand_empty_rest_of_line (); | |
2213 | } | |
2214 | ||
2215 | /* .fclist | |
2216 | .fcnolist | |
9a736b6b NC |
2217 | List false conditional blocks. */ |
2218 | ||
39bec121 | 2219 | static void |
5a49b8ac | 2220 | tic54x_fclist (int show) |
39bec121 TW |
2221 | { |
2222 | if (show) | |
2223 | listing &= ~LISTING_NOCOND; | |
2224 | else | |
2225 | listing |= LISTING_NOCOND; | |
2226 | demand_empty_rest_of_line (); | |
2227 | } | |
2228 | ||
2229 | static void | |
5a49b8ac | 2230 | tic54x_sslist (int show) |
39bec121 TW |
2231 | { |
2232 | ILLEGAL_WITHIN_STRUCT (); | |
2233 | ||
2234 | listing_sslist = show; | |
2235 | } | |
2236 | ||
1aea3bb8 | 2237 | /* .var SYM[,...,SYMN] |
9a736b6b NC |
2238 | Define a substitution string to be local to a macro. */ |
2239 | ||
39bec121 | 2240 | static void |
5a49b8ac | 2241 | tic54x_var (int ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2242 | { |
2243 | static char empty[] = ""; | |
2244 | char *name; | |
2245 | int c; | |
2246 | ||
2247 | ILLEGAL_WITHIN_STRUCT (); | |
2248 | ||
2249 | if (macro_level == 0) | |
2250 | { | |
2251 | as_bad (_(".var may only be used within a macro definition")); | |
2252 | ignore_rest_of_line (); | |
2253 | return; | |
2254 | } | |
1aea3bb8 | 2255 | do |
39bec121 | 2256 | { |
3882b010 | 2257 | if (!ISALPHA (*input_line_pointer)) |
9a736b6b NC |
2258 | { |
2259 | as_bad (_("Substitution symbols must begin with a letter")); | |
2260 | ignore_rest_of_line (); | |
2261 | return; | |
2262 | } | |
39bec121 TW |
2263 | name = input_line_pointer; |
2264 | c = get_symbol_end (); | |
9a736b6b | 2265 | /* .var symbols start out with a null string. */ |
1aea3bb8 | 2266 | name = strcpy (xmalloc (strlen (name) + 1), name); |
39bec121 TW |
2267 | hash_insert (subsym_hash[macro_level], name, empty); |
2268 | *input_line_pointer = c; | |
2269 | if (c == ',') | |
9a736b6b NC |
2270 | { |
2271 | ++input_line_pointer; | |
2272 | if (is_end_of_line[(int) *input_line_pointer]) | |
2273 | c = *input_line_pointer; | |
2274 | } | |
39bec121 TW |
2275 | } |
2276 | while (c == ','); | |
2277 | ||
2278 | demand_empty_rest_of_line (); | |
2279 | } | |
2280 | ||
1aea3bb8 | 2281 | /* .mlib <macro library filename> |
39bec121 TW |
2282 | |
2283 | Macro libraries are archived (standard AR-format) text macro definitions | |
2284 | Expand the file and include it. | |
2285 | ||
d0313fb7 | 2286 | FIXME need to try the source file directory as well. */ |
9a736b6b | 2287 | |
39bec121 | 2288 | static void |
5a49b8ac | 2289 | tic54x_mlib (int ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2290 | { |
2291 | char *filename; | |
2292 | char *path; | |
2293 | int len, i; | |
2294 | bfd *abfd, *mbfd; | |
2295 | ||
2296 | ILLEGAL_WITHIN_STRUCT (); | |
2297 | ||
9a736b6b | 2298 | /* Parse the filename. */ |
39bec121 TW |
2299 | if (*input_line_pointer == '"') |
2300 | { | |
2301 | if ((filename = demand_copy_C_string (&len)) == NULL) | |
9a736b6b | 2302 | return; |
39bec121 TW |
2303 | } |
2304 | else | |
2305 | { | |
2306 | SKIP_WHITESPACE (); | |
2307 | len = 0; | |
1aea3bb8 | 2308 | while (!is_end_of_line[(int) *input_line_pointer] |
3882b010 | 2309 | && !ISSPACE (*input_line_pointer)) |
9a736b6b NC |
2310 | { |
2311 | obstack_1grow (¬es, *input_line_pointer); | |
2312 | ++input_line_pointer; | |
2313 | ++len; | |
2314 | } | |
39bec121 TW |
2315 | obstack_1grow (¬es, '\0'); |
2316 | filename = obstack_finish (¬es); | |
2317 | } | |
2318 | demand_empty_rest_of_line (); | |
2319 | ||
2320 | tic54x_set_default_include (0); | |
2321 | path = xmalloc ((unsigned long) len + include_dir_maxlen + 5); | |
f1e7a2c9 | 2322 | |
1aea3bb8 | 2323 | for (i = 0; i < include_dir_count; i++) |
39bec121 TW |
2324 | { |
2325 | FILE *try; | |
f1e7a2c9 | 2326 | |
39bec121 TW |
2327 | strcpy (path, include_dirs[i]); |
2328 | strcat (path, "/"); | |
2329 | strcat (path, filename); | |
2330 | if ((try = fopen (path, "r")) != NULL) | |
9a736b6b NC |
2331 | { |
2332 | fclose (try); | |
2333 | break; | |
2334 | } | |
1aea3bb8 | 2335 | } |
f1e7a2c9 | 2336 | |
39bec121 TW |
2337 | if (i >= include_dir_count) |
2338 | { | |
2339 | free (path); | |
2340 | path = filename; | |
2341 | } | |
2342 | ||
2343 | /* FIXME: if path is found, malloc'd storage is not freed. Of course, this | |
2344 | happens all over the place, and since the assembler doesn't usually keep | |
9a736b6b | 2345 | running for a very long time, it really doesn't matter. */ |
39bec121 TW |
2346 | register_dependency (path); |
2347 | ||
d0313fb7 | 2348 | /* Expand all archive entries to temporary files and include them. */ |
39bec121 TW |
2349 | abfd = bfd_openr (path, NULL); |
2350 | if (!abfd) | |
2351 | { | |
885afe7b AM |
2352 | as_bad (_("can't open macro library file '%s' for reading: %s"), |
2353 | path, bfd_errmsg (bfd_get_error ())); | |
39bec121 TW |
2354 | ignore_rest_of_line (); |
2355 | return; | |
2356 | } | |
2357 | if (!bfd_check_format (abfd, bfd_archive)) | |
2358 | { | |
2359 | as_bad (_("File '%s' not in macro archive format"), path); | |
2360 | ignore_rest_of_line (); | |
2361 | return; | |
2362 | } | |
2363 | ||
d0313fb7 | 2364 | /* Open each BFD as binary (it should be straight ASCII text). */ |
39bec121 TW |
2365 | for (mbfd = bfd_openr_next_archived_file (abfd, NULL); |
2366 | mbfd != NULL; mbfd = bfd_openr_next_archived_file (abfd, mbfd)) | |
2367 | { | |
d0313fb7 | 2368 | /* Get a size at least as big as the archive member. */ |
39bec121 TW |
2369 | bfd_size_type size = bfd_get_size (mbfd); |
2370 | char *buf = xmalloc (size); | |
2371 | char *fname = tmpnam (NULL); | |
2372 | FILE *ftmp; | |
2373 | ||
d0313fb7 | 2374 | /* We're not sure how big it is, but it will be smaller than "size". */ |
0e1a166b | 2375 | bfd_bread (buf, size, mbfd); |
39bec121 | 2376 | |
1aea3bb8 | 2377 | /* Write to a temporary file, then use s_include to include it |
9a736b6b | 2378 | a bit of a hack. */ |
39bec121 | 2379 | ftmp = fopen (fname, "w+b"); |
1aea3bb8 NC |
2380 | fwrite ((void *) buf, size, 1, ftmp); |
2381 | if (buf[size - 1] != '\n') | |
9a736b6b | 2382 | fwrite ("\n", 1, 1, ftmp); |
39bec121 TW |
2383 | fclose (ftmp); |
2384 | free (buf); | |
2385 | input_scrub_insert_file (fname); | |
2386 | unlink (fname); | |
2387 | } | |
2388 | } | |
2389 | ||
1aea3bb8 | 2390 | const pseudo_typeS md_pseudo_table[] = |
39bec121 | 2391 | { |
9a736b6b NC |
2392 | { "algebraic", s_ignore , 0 }, |
2393 | { "align" , tic54x_align_words , 128 }, | |
6e917903 TW |
2394 | { "ascii" , tic54x_stringer , 'p' }, |
2395 | { "asciz" , tic54x_stringer , 'P' }, | |
9a736b6b NC |
2396 | { "even" , tic54x_align_words , 2 }, |
2397 | { "asg" , tic54x_asg , 0 }, | |
2398 | { "eval" , tic54x_eval , 0 }, | |
2399 | { "bss" , tic54x_bss , 0 }, | |
2400 | { "byte" , tic54x_cons , 'b' }, | |
2401 | { "ubyte" , tic54x_cons , 'B' }, | |
2402 | { "char" , tic54x_cons , 'c' }, | |
2403 | { "uchar" , tic54x_cons , 'C' }, | |
2404 | { "clink" , tic54x_clink , 0 }, | |
2405 | { "c_mode" , tic54x_address_mode , c_mode }, | |
2406 | { "copy" , tic54x_include , 'c' }, | |
2407 | { "include" , tic54x_include , 'i' }, | |
2408 | { "data" , tic54x_sect , 'd' }, | |
2409 | { "double" , tic54x_float_cons , 'd' }, | |
2410 | { "ldouble" , tic54x_float_cons , 'l' }, | |
2411 | { "drlist" , s_ignore , 0 }, | |
2412 | { "drnolist" , s_ignore , 0 }, | |
2413 | { "emsg" , tic54x_message , 'e' }, | |
2414 | { "mmsg" , tic54x_message , 'm' }, | |
2415 | { "wmsg" , tic54x_message , 'w' }, | |
9a736b6b NC |
2416 | { "far_mode" , tic54x_address_mode , far_mode }, |
2417 | { "fclist" , tic54x_fclist , 1 }, | |
2418 | { "fcnolist" , tic54x_fclist , 0 }, | |
2419 | { "field" , tic54x_field , -1 }, | |
2420 | { "float" , tic54x_float_cons , 'f' }, | |
2421 | { "xfloat" , tic54x_float_cons , 'x' }, | |
2422 | { "global" , tic54x_global , 'g' }, | |
2423 | { "def" , tic54x_global , 'd' }, | |
2424 | { "ref" , tic54x_global , 'r' }, | |
2425 | { "half" , tic54x_cons , 'h' }, | |
2426 | { "uhalf" , tic54x_cons , 'H' }, | |
2427 | { "short" , tic54x_cons , 's' }, | |
2428 | { "ushort" , tic54x_cons , 'S' }, | |
2429 | { "if" , s_if , (int) O_ne }, | |
2430 | { "elseif" , s_elseif , (int) O_ne }, | |
2431 | { "else" , s_else , 0 }, | |
2432 | { "endif" , s_endif , 0 }, | |
2433 | { "int" , tic54x_cons , 'i' }, | |
2434 | { "uint" , tic54x_cons , 'I' }, | |
2435 | { "word" , tic54x_cons , 'w' }, | |
2436 | { "uword" , tic54x_cons , 'W' }, | |
2437 | { "label" , tic54x_label , 0 }, /* Loadtime | |
2438 | address. */ | |
2439 | { "length" , s_ignore , 0 }, | |
2440 | { "width" , s_ignore , 0 }, | |
9a736b6b NC |
2441 | { "long" , tic54x_cons , 'l' }, |
2442 | { "ulong" , tic54x_cons , 'L' }, | |
2443 | { "xlong" , tic54x_cons , 'x' }, | |
2444 | { "loop" , tic54x_loop , 1024 }, | |
2445 | { "break" , tic54x_break , 0 }, | |
2446 | { "endloop" , tic54x_endloop , 0 }, | |
2447 | { "mlib" , tic54x_mlib , 0 }, | |
2448 | { "mlist" , s_ignore , 0 }, | |
2449 | { "mnolist" , s_ignore , 0 }, | |
2450 | { "mmregs" , tic54x_mmregs , 0 }, | |
2451 | { "newblock" , tic54x_clear_local_labels, 0 }, | |
2452 | { "option" , s_ignore , 0 }, | |
2453 | { "p2align" , tic54x_p2align , 0 }, | |
9a736b6b NC |
2454 | { "sblock" , tic54x_sblock , 0 }, |
2455 | { "sect" , tic54x_sect , '*' }, | |
2456 | { "set" , tic54x_set , 0 }, | |
2457 | { "equ" , tic54x_set , 0 }, | |
2458 | { "space" , tic54x_space , 0 }, | |
2459 | { "bes" , tic54x_space , 1 }, | |
2460 | { "sslist" , tic54x_sslist , 1 }, | |
2461 | { "ssnolist" , tic54x_sslist , 0 }, | |
2462 | { "string" , tic54x_stringer , 's' }, | |
2463 | { "pstring" , tic54x_stringer , 'p' }, | |
2464 | { "struct" , tic54x_struct , 0 }, | |
2465 | { "tag" , tic54x_tag , 0 }, | |
2466 | { "endstruct", tic54x_endstruct , 0 }, | |
2467 | { "tab" , s_ignore , 0 }, | |
2468 | { "text" , tic54x_sect , 't' }, | |
9a736b6b NC |
2469 | { "union" , tic54x_struct , 1 }, |
2470 | { "endunion" , tic54x_endstruct , 1 }, | |
2471 | { "usect" , tic54x_usect , 0 }, | |
2472 | { "var" , tic54x_var , 0 }, | |
2473 | { "version" , tic54x_version , 0 }, | |
2474 | {0 , 0 , 0 } | |
39bec121 TW |
2475 | }; |
2476 | ||
39bec121 | 2477 | int |
5a49b8ac | 2478 | md_parse_option (int c, char *arg) |
39bec121 TW |
2479 | { |
2480 | switch (c) | |
2481 | { | |
2482 | default: | |
2483 | return 0; | |
2484 | case OPTION_COFF_VERSION: | |
2485 | { | |
9a736b6b | 2486 | int version = atoi (arg); |
f1e7a2c9 | 2487 | |
9a736b6b NC |
2488 | if (version != 0 && version != 1 && version != 2) |
2489 | as_fatal (_("Bad COFF version '%s'"), arg); | |
2490 | /* FIXME -- not yet implemented. */ | |
2491 | break; | |
39bec121 TW |
2492 | } |
2493 | case OPTION_CPU_VERSION: | |
2494 | { | |
9a736b6b NC |
2495 | cpu = lookup_version (arg); |
2496 | cpu_needs_set = 1; | |
2497 | if (cpu == VNONE) | |
2498 | as_fatal (_("Bad CPU version '%s'"), arg); | |
2499 | break; | |
39bec121 TW |
2500 | } |
2501 | case OPTION_ADDRESS_MODE: | |
2502 | amode = far_mode; | |
2503 | address_mode_needs_set = 1; | |
2504 | break; | |
2505 | case OPTION_STDERR_TO_FILE: | |
2506 | { | |
9a736b6b NC |
2507 | char *filename = arg; |
2508 | FILE *fp = fopen (filename, "w+"); | |
f1e7a2c9 | 2509 | |
9a736b6b NC |
2510 | if (fp == NULL) |
2511 | as_fatal (_("Can't redirect stderr to the file '%s'"), filename); | |
2512 | fclose (fp); | |
2513 | if ((fp = freopen (filename, "w+", stderr)) == NULL) | |
2514 | as_fatal (_("Can't redirect stderr to the file '%s'"), filename); | |
2515 | break; | |
39bec121 TW |
2516 | } |
2517 | } | |
2518 | ||
2519 | return 1; | |
2520 | } | |
2521 | ||
1aea3bb8 | 2522 | /* Create a "local" substitution string hash table for a new macro level |
39bec121 TW |
2523 | Some docs imply that macros have to use .newblock in order to be able |
2524 | to re-use a local label. We effectively do an automatic .newblock by | |
d0313fb7 | 2525 | deleting the local label hash between macro invocations. */ |
9a736b6b | 2526 | |
1aea3bb8 | 2527 | void |
5a49b8ac | 2528 | tic54x_macro_start (void) |
39bec121 TW |
2529 | { |
2530 | ++macro_level; | |
2531 | subsym_hash[macro_level] = hash_new (); | |
2532 | local_label_hash[macro_level] = hash_new (); | |
2533 | } | |
2534 | ||
2535 | void | |
5a49b8ac | 2536 | tic54x_macro_info (const macro_entry *macro) |
39bec121 | 2537 | { |
4962e196 | 2538 | const formal_entry *entry; |
39bec121 | 2539 | |
d0313fb7 | 2540 | /* Put the formal args into the substitution symbol table. */ |
39bec121 TW |
2541 | for (entry = macro->formals; entry; entry = entry->next) |
2542 | { | |
2543 | char *name = strncpy (xmalloc (entry->name.len + 1), | |
9a736b6b | 2544 | entry->name.ptr, entry->name.len); |
39bec121 | 2545 | char *value = strncpy (xmalloc (entry->actual.len + 1), |
9a736b6b | 2546 | entry->actual.ptr, entry->actual.len); |
f1e7a2c9 | 2547 | |
39bec121 TW |
2548 | name[entry->name.len] = '\0'; |
2549 | value[entry->actual.len] = '\0'; | |
2550 | hash_insert (subsym_hash[macro_level], name, value); | |
2551 | } | |
2552 | } | |
2553 | ||
d0313fb7 | 2554 | /* Get rid of this macro's .var's, arguments, and local labels. */ |
9a736b6b | 2555 | |
39bec121 | 2556 | void |
5a49b8ac | 2557 | tic54x_macro_end (void) |
39bec121 TW |
2558 | { |
2559 | hash_die (subsym_hash[macro_level]); | |
2560 | subsym_hash[macro_level] = NULL; | |
2561 | hash_die (local_label_hash[macro_level]); | |
2562 | local_label_hash[macro_level] = NULL; | |
2563 | --macro_level; | |
2564 | } | |
2565 | ||
2566 | static int | |
5a49b8ac | 2567 | subsym_symlen (char *a, char *ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2568 | { |
2569 | return strlen (a); | |
2570 | } | |
2571 | ||
d0313fb7 | 2572 | /* Compare symbol A to string B. */ |
9a736b6b | 2573 | |
39bec121 | 2574 | static int |
5a49b8ac | 2575 | subsym_symcmp (char *a, char *b) |
39bec121 TW |
2576 | { |
2577 | return strcmp (a, b); | |
2578 | } | |
2579 | ||
33b7f697 | 2580 | /* Return the index of the first occurrence of B in A, or zero if none |
d0313fb7 | 2581 | assumes b is an integer char value as a string. Index is one-based. */ |
9a736b6b | 2582 | |
39bec121 | 2583 | static int |
5a49b8ac | 2584 | subsym_firstch (char *a, char *b) |
39bec121 TW |
2585 | { |
2586 | int val = atoi (b); | |
2587 | char *tmp = strchr (a, val); | |
1aea3bb8 | 2588 | |
39bec121 TW |
2589 | return tmp ? tmp - a + 1 : 0; |
2590 | } | |
2591 | ||
d0313fb7 | 2592 | /* Similar to firstch, but returns index of last occurrence of B in A. */ |
9a736b6b | 2593 | |
39bec121 | 2594 | static int |
5a49b8ac | 2595 | subsym_lastch (char *a, char *b) |
39bec121 TW |
2596 | { |
2597 | int val = atoi (b); | |
2598 | char *tmp = strrchr (a, val); | |
2599 | ||
2600 | return tmp ? tmp - a + 1 : 0; | |
2601 | } | |
2602 | ||
d0313fb7 | 2603 | /* Returns 1 if string A is defined in the symbol table (NOT the substitution |
9a736b6b NC |
2604 | symbol table). */ |
2605 | ||
39bec121 | 2606 | static int |
5a49b8ac | 2607 | subsym_isdefed (char *a, char *ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2608 | { |
2609 | symbolS *symbolP = symbol_find (a); | |
2610 | ||
2611 | return symbolP != NULL; | |
2612 | } | |
2613 | ||
d0313fb7 | 2614 | /* Assign first member of comma-separated list B (e.g. "1,2,3") to the symbol |
39bec121 | 2615 | A, or zero if B is a null string. Both arguments *must* be substitution |
d0313fb7 | 2616 | symbols, unsubstituted. */ |
9a736b6b | 2617 | |
39bec121 | 2618 | static int |
5a49b8ac | 2619 | subsym_ismember (char *sym, char *list) |
39bec121 TW |
2620 | { |
2621 | char *elem, *ptr, *listv; | |
2622 | ||
2623 | if (!list) | |
2624 | return 0; | |
2625 | ||
2626 | listv = subsym_lookup (list, macro_level); | |
2627 | if (!listv) | |
2628 | { | |
2629 | as_bad (_("Undefined substitution symbol '%s'"), list); | |
2630 | ignore_rest_of_line (); | |
2631 | return 0; | |
2632 | } | |
2633 | ||
1aea3bb8 | 2634 | ptr = elem = xmalloc (strlen (listv) + 1); |
39bec121 TW |
2635 | strcpy (elem, listv); |
2636 | while (*ptr && *ptr != ',') | |
2637 | ++ptr; | |
2638 | *ptr++ = 0; | |
2639 | ||
d0313fb7 | 2640 | subsym_create_or_replace (sym, elem); |
39bec121 | 2641 | |
d0313fb7 | 2642 | /* Reassign the list. */ |
39bec121 | 2643 | subsym_create_or_replace (list, ptr); |
1aea3bb8 | 2644 | |
d0313fb7 | 2645 | /* Assume this value, docs aren't clear. */ |
39bec121 TW |
2646 | return *list != 0; |
2647 | } | |
2648 | ||
d0313fb7 | 2649 | /* Return zero if not a constant; otherwise: |
39bec121 TW |
2650 | 1 if binary |
2651 | 2 if octal | |
2652 | 3 if hexadecimal | |
2653 | 4 if character | |
d0313fb7 | 2654 | 5 if decimal. */ |
9a736b6b | 2655 | |
39bec121 | 2656 | static int |
5a49b8ac | 2657 | subsym_iscons (char *a, char *ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2658 | { |
2659 | expressionS exp; | |
2660 | ||
2661 | parse_expression (a, &exp); | |
2662 | ||
2663 | if (exp.X_op == O_constant) | |
2664 | { | |
2665 | int len = strlen (a); | |
2666 | ||
3882b010 | 2667 | switch (TOUPPER (a[len - 1])) |
9a736b6b NC |
2668 | { |
2669 | case 'B': | |
2670 | return 1; | |
2671 | case 'Q': | |
2672 | return 2; | |
2673 | case 'H': | |
2674 | return 3; | |
2675 | case '\'': | |
2676 | return 4; | |
2677 | default: | |
2678 | break; | |
2679 | } | |
d0313fb7 | 2680 | /* No suffix; either octal, hex, or decimal. */ |
39bec121 | 2681 | if (*a == '0' && len > 1) |
9a736b6b | 2682 | { |
3882b010 | 2683 | if (TOUPPER (a[1]) == 'X') |
9a736b6b NC |
2684 | return 3; |
2685 | return 2; | |
2686 | } | |
39bec121 TW |
2687 | return 5; |
2688 | } | |
2689 | ||
2690 | return 0; | |
2691 | } | |
2692 | ||
d0313fb7 | 2693 | /* Return 1 if A is a valid symbol name. Expects string input. */ |
9a736b6b | 2694 | |
39bec121 | 2695 | static int |
5a49b8ac | 2696 | subsym_isname (char *a, char *ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2697 | { |
2698 | if (!is_name_beginner (*a)) | |
2699 | return 0; | |
2700 | while (*a) | |
2701 | { | |
2702 | if (!is_part_of_name (*a)) | |
9a736b6b | 2703 | return 0; |
39bec121 TW |
2704 | ++a; |
2705 | } | |
2706 | return 1; | |
2707 | } | |
2708 | ||
d0313fb7 | 2709 | /* Return whether the string is a register; accepts ar0-7, unless .mmregs has |
39bec121 | 2710 | been seen; if so, recognize any memory-mapped register. |
d0313fb7 | 2711 | Note this does not recognize "A" or "B" accumulators. */ |
9a736b6b | 2712 | |
39bec121 | 2713 | static int |
5a49b8ac | 2714 | subsym_isreg (char *a, char *ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2715 | { |
2716 | if (hash_find (reg_hash, a)) | |
2717 | return 1; | |
2718 | if (hash_find (mmreg_hash, a)) | |
2719 | return 1; | |
2720 | return 0; | |
2721 | } | |
2722 | ||
33b7f697 | 2723 | /* Return the structure size, given the stag. */ |
9a736b6b | 2724 | |
39bec121 | 2725 | static int |
5a49b8ac | 2726 | subsym_structsz (char *name, char *ignore ATTRIBUTE_UNUSED) |
39bec121 | 2727 | { |
1aea3bb8 | 2728 | struct stag *stag = (struct stag *) hash_find (stag_hash, name); |
f1e7a2c9 | 2729 | |
39bec121 TW |
2730 | if (stag) |
2731 | return stag->size; | |
2732 | ||
2733 | return 0; | |
2734 | } | |
2735 | ||
2736 | /* If anybody actually uses this, they can fix it :) | |
2737 | FIXME I'm not sure what the "reference point" of a structure is. It might | |
2738 | be either the initial offset given .struct, or it may be the offset of the | |
2739 | structure within another structure, or it might be something else | |
2740 | altogether. since the TI assembler doesn't seem to ever do anything but | |
d0313fb7 | 2741 | return zero, we punt and return zero. */ |
9a736b6b | 2742 | |
39bec121 | 2743 | static int |
5a49b8ac AM |
2744 | subsym_structacc (char *stag_name ATTRIBUTE_UNUSED, |
2745 | char *ignore ATTRIBUTE_UNUSED) | |
39bec121 TW |
2746 | { |
2747 | return 0; | |
2748 | } | |
2749 | ||
2750 | static float | |
5a49b8ac | 2751 | math_ceil (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2752 | { |
1aea3bb8 | 2753 | return (float) ceil (arg1); |
39bec121 | 2754 | } |
d0313fb7 | 2755 | |
39bec121 | 2756 | static float |
5a49b8ac | 2757 | math_cvi (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2758 | { |
1aea3bb8 | 2759 | return (int) arg1; |
39bec121 | 2760 | } |
d0313fb7 | 2761 | |
39bec121 | 2762 | static float |
5a49b8ac | 2763 | math_floor (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2764 | { |
1aea3bb8 | 2765 | return (float) floor (arg1); |
39bec121 | 2766 | } |
d0313fb7 | 2767 | |
39bec121 | 2768 | static float |
5a49b8ac | 2769 | math_fmod (float arg1, float arg2) |
39bec121 | 2770 | { |
1aea3bb8 | 2771 | return (int) arg1 % (int) arg2; |
39bec121 | 2772 | } |
d0313fb7 | 2773 | |
39bec121 | 2774 | static float |
5a49b8ac | 2775 | math_int (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2776 | { |
1aea3bb8 | 2777 | return ((float) ((int) arg1)) == arg1; |
39bec121 | 2778 | } |
d0313fb7 | 2779 | |
39bec121 | 2780 | static float |
5a49b8ac | 2781 | math_round (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2782 | { |
1aea3bb8 | 2783 | return arg1 > 0 ? (int) (arg1 + 0.5) : (int) (arg1 - 0.5); |
39bec121 | 2784 | } |
d0313fb7 | 2785 | |
39bec121 | 2786 | static float |
5a49b8ac | 2787 | math_sgn (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2788 | { |
2789 | return (arg1 < 0) ? -1 : (arg1 ? 1 : 0); | |
2790 | } | |
d0313fb7 | 2791 | |
39bec121 | 2792 | static float |
5a49b8ac | 2793 | math_trunc (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2794 | { |
1aea3bb8 | 2795 | return (int) arg1; |
39bec121 TW |
2796 | } |
2797 | ||
2798 | static float | |
5a49b8ac | 2799 | math_acos (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2800 | { |
1aea3bb8 | 2801 | return (float) acos (arg1); |
39bec121 | 2802 | } |
d0313fb7 | 2803 | |
39bec121 | 2804 | static float |
5a49b8ac | 2805 | math_asin (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2806 | { |
1aea3bb8 | 2807 | return (float) asin (arg1); |
39bec121 | 2808 | } |
d0313fb7 | 2809 | |
39bec121 | 2810 | static float |
5a49b8ac | 2811 | math_atan (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2812 | { |
1aea3bb8 | 2813 | return (float) atan (arg1); |
39bec121 | 2814 | } |
d0313fb7 | 2815 | |
39bec121 | 2816 | static float |
5a49b8ac | 2817 | math_atan2 (float arg1, float arg2) |
39bec121 | 2818 | { |
1aea3bb8 | 2819 | return (float) atan2 (arg1, arg2); |
39bec121 | 2820 | } |
d0313fb7 | 2821 | |
39bec121 | 2822 | static float |
5a49b8ac | 2823 | math_cosh (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2824 | { |
1aea3bb8 | 2825 | return (float) cosh (arg1); |
39bec121 | 2826 | } |
d0313fb7 | 2827 | |
39bec121 | 2828 | static float |
5a49b8ac | 2829 | math_cos (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2830 | { |
1aea3bb8 | 2831 | return (float) cos (arg1); |
39bec121 | 2832 | } |
d0313fb7 | 2833 | |
39bec121 | 2834 | static float |
5a49b8ac | 2835 | math_cvf (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2836 | { |
1aea3bb8 | 2837 | return (float) arg1; |
39bec121 | 2838 | } |
d0313fb7 | 2839 | |
39bec121 | 2840 | static float |
5a49b8ac | 2841 | math_exp (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2842 | { |
1aea3bb8 | 2843 | return (float) exp (arg1); |
39bec121 | 2844 | } |
d0313fb7 | 2845 | |
39bec121 | 2846 | static float |
5a49b8ac | 2847 | math_fabs (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2848 | { |
1aea3bb8 | 2849 | return (float) fabs (arg1); |
39bec121 | 2850 | } |
d0313fb7 NC |
2851 | |
2852 | /* expr1 * 2^expr2. */ | |
9a736b6b | 2853 | |
39bec121 | 2854 | static float |
5a49b8ac | 2855 | math_ldexp (float arg1, float arg2) |
39bec121 | 2856 | { |
1aea3bb8 | 2857 | return arg1 * (float) pow (2.0, arg2); |
39bec121 | 2858 | } |
d0313fb7 | 2859 | |
39bec121 | 2860 | static float |
5a49b8ac | 2861 | math_log10 (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2862 | { |
1aea3bb8 | 2863 | return (float) log10 (arg1); |
39bec121 | 2864 | } |
d0313fb7 | 2865 | |
39bec121 | 2866 | static float |
5a49b8ac | 2867 | math_log (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2868 | { |
1aea3bb8 | 2869 | return (float) log (arg1); |
39bec121 | 2870 | } |
d0313fb7 | 2871 | |
39bec121 | 2872 | static float |
5a49b8ac | 2873 | math_max (float arg1, float arg2) |
39bec121 TW |
2874 | { |
2875 | return (arg1 > arg2) ? arg1 : arg2; | |
2876 | } | |
d0313fb7 | 2877 | |
39bec121 | 2878 | static float |
5a49b8ac | 2879 | math_min (float arg1, float arg2) |
39bec121 TW |
2880 | { |
2881 | return (arg1 < arg2) ? arg1 : arg2; | |
2882 | } | |
d0313fb7 | 2883 | |
39bec121 | 2884 | static float |
5a49b8ac | 2885 | math_pow (float arg1, float arg2) |
39bec121 | 2886 | { |
1aea3bb8 | 2887 | return (float) pow (arg1, arg2); |
39bec121 | 2888 | } |
d0313fb7 | 2889 | |
39bec121 | 2890 | static float |
5a49b8ac | 2891 | math_sin (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2892 | { |
1aea3bb8 | 2893 | return (float) sin (arg1); |
39bec121 | 2894 | } |
d0313fb7 | 2895 | |
39bec121 | 2896 | static float |
5a49b8ac | 2897 | math_sinh (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2898 | { |
1aea3bb8 | 2899 | return (float) sinh (arg1); |
39bec121 | 2900 | } |
d0313fb7 | 2901 | |
39bec121 | 2902 | static float |
5a49b8ac | 2903 | math_sqrt (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2904 | { |
1aea3bb8 | 2905 | return (float) sqrt (arg1); |
39bec121 | 2906 | } |
d0313fb7 | 2907 | |
39bec121 | 2908 | static float |
5a49b8ac | 2909 | math_tan (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2910 | { |
1aea3bb8 | 2911 | return (float) tan (arg1); |
39bec121 | 2912 | } |
d0313fb7 | 2913 | |
39bec121 | 2914 | static float |
5a49b8ac | 2915 | math_tanh (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2916 | { |
1aea3bb8 | 2917 | return (float) tanh (arg1); |
39bec121 TW |
2918 | } |
2919 | ||
d0313fb7 | 2920 | /* Built-in substitution symbol functions and math functions. */ |
1aea3bb8 | 2921 | typedef struct |
39bec121 TW |
2922 | { |
2923 | char *name; | |
5a49b8ac | 2924 | int (*proc) (char *, char *); |
39bec121 TW |
2925 | int nargs; |
2926 | } subsym_proc_entry; | |
2927 | ||
d0313fb7 NC |
2928 | static const subsym_proc_entry subsym_procs[] = |
2929 | { | |
2930 | /* Assembler built-in string substitution functions. */ | |
39bec121 TW |
2931 | { "$symlen", subsym_symlen, 1, }, |
2932 | { "$symcmp", subsym_symcmp, 2, }, | |
2933 | { "$firstch", subsym_firstch, 2, }, | |
2934 | { "$lastch", subsym_lastch, 2, }, | |
2935 | { "$isdefed", subsym_isdefed, 1, }, | |
2936 | { "$ismember", subsym_ismember, 2, }, | |
2937 | { "$iscons", subsym_iscons, 1, }, | |
2938 | { "$isname", subsym_isname, 1, }, | |
2939 | { "$isreg", subsym_isreg, 1, }, | |
2940 | { "$structsz", subsym_structsz, 1, }, | |
2941 | { "$structacc", subsym_structacc, 1, }, | |
2942 | { NULL, NULL, 0 }, | |
2943 | }; | |
2944 | ||
2945 | typedef struct | |
2946 | { | |
2947 | char *name; | |
5a49b8ac | 2948 | float (*proc) (float, float); |
39bec121 TW |
2949 | int nargs; |
2950 | int int_return; | |
2951 | } math_proc_entry; | |
2952 | ||
d0313fb7 NC |
2953 | static const math_proc_entry math_procs[] = |
2954 | { | |
2955 | /* Integer-returning built-in math functions. */ | |
39bec121 TW |
2956 | { "$cvi", math_cvi, 1, 1 }, |
2957 | { "$int", math_int, 1, 1 }, | |
2958 | { "$sgn", math_sgn, 1, 1 }, | |
2959 | ||
d0313fb7 | 2960 | /* Float-returning built-in math functions. */ |
39bec121 TW |
2961 | { "$acos", math_acos, 1, 0 }, |
2962 | { "$asin", math_asin, 1, 0 }, | |
2963 | { "$atan", math_atan, 1, 0 }, | |
1aea3bb8 | 2964 | { "$atan2", math_atan2, 2, 0 }, |
39bec121 TW |
2965 | { "$ceil", math_ceil, 1, 0 }, |
2966 | { "$cosh", math_cosh, 1, 0 }, | |
2967 | { "$cos", math_cos, 1, 0 }, | |
2968 | { "$cvf", math_cvf, 1, 0 }, | |
2969 | { "$exp", math_exp, 1, 0 }, | |
2970 | { "$fabs", math_fabs, 1, 0 }, | |
2971 | { "$floor", math_floor, 1, 0 }, | |
2972 | { "$fmod", math_fmod, 2, 0 }, | |
2973 | { "$ldexp", math_ldexp, 2, 0 }, | |
2974 | { "$log10", math_log10, 1, 0 }, | |
2975 | { "$log", math_log, 1, 0 }, | |
2976 | { "$max", math_max, 2, 0 }, | |
2977 | { "$min", math_min, 2, 0 }, | |
2978 | { "$pow", math_pow, 2, 0 }, | |
2979 | { "$round", math_round, 1, 0 }, | |
2980 | { "$sin", math_sin, 1, 0 }, | |
2981 | { "$sinh", math_sinh, 1, 0 }, | |
2982 | { "$sqrt", math_sqrt, 1, 0 }, | |
2983 | { "$tan", math_tan, 1, 0 }, | |
2984 | { "$tanh", math_tanh, 1, 0 }, | |
2985 | { "$trunc", math_trunc, 1, 0 }, | |
2986 | { NULL, NULL, 0, 0 }, | |
2987 | }; | |
2988 | ||
2989 | void | |
5a49b8ac | 2990 | md_begin (void) |
39bec121 | 2991 | { |
6e917903 | 2992 | template *tm; |
39bec121 TW |
2993 | symbol *sym; |
2994 | const subsym_proc_entry *subsym_proc; | |
2995 | const math_proc_entry *math_proc; | |
2996 | const char *hash_err; | |
2997 | char **symname; | |
2998 | char *TIC54X_DIR = getenv ("TIC54X_DIR"); | |
2999 | char *A_DIR = TIC54X_DIR ? TIC54X_DIR : getenv ("A_DIR"); | |
3000 | ||
3001 | local_label_id = 0; | |
3002 | ||
f1e7a2c9 | 3003 | /* Look for A_DIR and add it to the include list. */ |
39bec121 TW |
3004 | if (A_DIR != NULL) |
3005 | { | |
3006 | char *tmp = xstrdup (A_DIR); | |
f1e7a2c9 | 3007 | |
1aea3bb8 NC |
3008 | do |
3009 | { | |
3010 | char *next = strchr (tmp, ';'); | |
f1e7a2c9 | 3011 | |
1aea3bb8 NC |
3012 | if (next) |
3013 | *next++ = '\0'; | |
3014 | add_include_dir (tmp); | |
3015 | tmp = next; | |
3016 | } | |
3017 | while (tmp != NULL); | |
39bec121 TW |
3018 | } |
3019 | ||
3020 | op_hash = hash_new (); | |
6e917903 | 3021 | for (tm = (template *) tic54x_optab; tm->name; tm++) |
39bec121 | 3022 | { |
6e917903 | 3023 | if (hash_find (op_hash, tm->name)) |
9a736b6b | 3024 | continue; |
6e917903 | 3025 | hash_err = hash_insert (op_hash, tm->name, (char *) tm); |
39bec121 | 3026 | if (hash_err) |
9a736b6b | 3027 | as_fatal ("Internal Error: Can't hash %s: %s", |
6e917903 | 3028 | tm->name, hash_err); |
39bec121 TW |
3029 | } |
3030 | parop_hash = hash_new (); | |
5d6255fe | 3031 | for (tm = (template *) tic54x_paroptab; tm->name; tm++) |
39bec121 | 3032 | { |
6e917903 | 3033 | if (hash_find (parop_hash, tm->name)) |
9a736b6b | 3034 | continue; |
6e917903 | 3035 | hash_err = hash_insert (parop_hash, tm->name, (char *) tm); |
39bec121 | 3036 | if (hash_err) |
9a736b6b | 3037 | as_fatal ("Internal Error: Can't hash %s: %s", |
6e917903 | 3038 | tm->name, hash_err); |
39bec121 TW |
3039 | } |
3040 | reg_hash = hash_new (); | |
1aea3bb8 | 3041 | for (sym = (symbol *) regs; sym->name; sym++) |
39bec121 | 3042 | { |
d0313fb7 | 3043 | /* Add basic registers to the symbol table. */ |
39bec121 | 3044 | symbolS *symbolP = symbol_new (sym->name, absolute_section, |
9a736b6b | 3045 | (valueT) sym->value, &zero_address_frag); |
39bec121 TW |
3046 | SF_SET_LOCAL (symbolP); |
3047 | symbol_table_insert (symbolP); | |
1aea3bb8 | 3048 | hash_err = hash_insert (reg_hash, sym->name, (char *) sym); |
39bec121 | 3049 | } |
1aea3bb8 NC |
3050 | for (sym = (symbol *) mmregs; sym->name; sym++) |
3051 | hash_err = hash_insert (reg_hash, sym->name, (char *) sym); | |
39bec121 | 3052 | mmreg_hash = hash_new (); |
1aea3bb8 | 3053 | for (sym = (symbol *) mmregs; sym->name; sym++) |
f1e7a2c9 NC |
3054 | hash_err = hash_insert (mmreg_hash, sym->name, (char *) sym); |
3055 | ||
39bec121 | 3056 | cc_hash = hash_new (); |
1aea3bb8 | 3057 | for (sym = (symbol *) condition_codes; sym->name; sym++) |
f1e7a2c9 NC |
3058 | hash_err = hash_insert (cc_hash, sym->name, (char *) sym); |
3059 | ||
39bec121 | 3060 | cc2_hash = hash_new (); |
1aea3bb8 | 3061 | for (sym = (symbol *) cc2_codes; sym->name; sym++) |
f1e7a2c9 NC |
3062 | hash_err = hash_insert (cc2_hash, sym->name, (char *) sym); |
3063 | ||
39bec121 | 3064 | cc3_hash = hash_new (); |
1aea3bb8 | 3065 | for (sym = (symbol *) cc3_codes; sym->name; sym++) |
f1e7a2c9 NC |
3066 | hash_err = hash_insert (cc3_hash, sym->name, (char *) sym); |
3067 | ||
39bec121 | 3068 | sbit_hash = hash_new (); |
1aea3bb8 | 3069 | for (sym = (symbol *) status_bits; sym->name; sym++) |
f1e7a2c9 NC |
3070 | hash_err = hash_insert (sbit_hash, sym->name, (char *) sym); |
3071 | ||
39bec121 | 3072 | misc_symbol_hash = hash_new (); |
1aea3bb8 | 3073 | for (symname = (char **) misc_symbols; *symname; symname++) |
f1e7a2c9 NC |
3074 | hash_err = hash_insert (misc_symbol_hash, *symname, *symname); |
3075 | ||
d0313fb7 NC |
3076 | /* Only the base substitution table and local label table are initialized; |
3077 | the others (for local macro substitution) get instantiated as needed. */ | |
39bec121 TW |
3078 | local_label_hash[0] = hash_new (); |
3079 | subsym_hash[0] = hash_new (); | |
3080 | for (subsym_proc = subsym_procs; subsym_proc->name; subsym_proc++) | |
f1e7a2c9 NC |
3081 | hash_err = hash_insert (subsym_hash[0], subsym_proc->name, |
3082 | (char *) subsym_proc); | |
3083 | ||
39bec121 TW |
3084 | math_hash = hash_new (); |
3085 | for (math_proc = math_procs; math_proc->name; math_proc++) | |
3086 | { | |
d0313fb7 | 3087 | /* Insert into the main subsym hash for recognition; insert into |
9a736b6b | 3088 | the math hash to actually store information. */ |
39bec121 | 3089 | hash_err = hash_insert (subsym_hash[0], math_proc->name, |
9a736b6b | 3090 | (char *) math_proc); |
39bec121 | 3091 | hash_err = hash_insert (math_hash, math_proc->name, |
9a736b6b | 3092 | (char *) math_proc); |
39bec121 TW |
3093 | } |
3094 | subsym_recurse_hash = hash_new (); | |
3095 | stag_hash = hash_new (); | |
3096 | } | |
3097 | ||
39bec121 | 3098 | static int |
5a49b8ac | 3099 | is_accumulator (struct opstruct *operand) |
39bec121 | 3100 | { |
1aea3bb8 | 3101 | return strcasecmp (operand->buf, "a") == 0 |
39bec121 TW |
3102 | || strcasecmp (operand->buf, "b") == 0; |
3103 | } | |
3104 | ||
9a736b6b NC |
3105 | /* Return the number of operands found, or -1 on error, copying the |
3106 | operands into the given array and the accompanying expressions into | |
3107 | the next array. */ | |
3108 | ||
39bec121 | 3109 | static int |
5a49b8ac | 3110 | get_operands (struct opstruct operands[], char *line) |
39bec121 TW |
3111 | { |
3112 | char *lptr = line; | |
3113 | int numexp = 0; | |
3114 | int expecting_operand = 0; | |
3115 | int i; | |
3116 | ||
1aea3bb8 | 3117 | while (numexp < MAX_OPERANDS && !is_end_of_line[(int) *lptr]) |
39bec121 TW |
3118 | { |
3119 | int paren_not_balanced = 0; | |
3120 | char *op_start, *op_end; | |
f1e7a2c9 | 3121 | |
3882b010 | 3122 | while (*lptr && ISSPACE (*lptr)) |
9a736b6b | 3123 | ++lptr; |
39bec121 TW |
3124 | op_start = lptr; |
3125 | while (paren_not_balanced || *lptr != ',') | |
9a736b6b NC |
3126 | { |
3127 | if (*lptr == '\0') | |
3128 | { | |
3129 | if (paren_not_balanced) | |
3130 | { | |
3131 | as_bad ("Unbalanced parenthesis in operand %d", numexp); | |
3132 | return -1; | |
3133 | } | |
3134 | else | |
3135 | break; | |
3136 | } | |
3137 | if (*lptr == '(') | |
3138 | ++paren_not_balanced; | |
3139 | else if (*lptr == ')') | |
3140 | --paren_not_balanced; | |
3141 | ++lptr; | |
3142 | } | |
39bec121 TW |
3143 | op_end = lptr; |
3144 | if (op_end != op_start) | |
9a736b6b NC |
3145 | { |
3146 | int len = op_end - op_start; | |
f1e7a2c9 | 3147 | |
9a736b6b NC |
3148 | strncpy (operands[numexp].buf, op_start, len); |
3149 | operands[numexp].buf[len] = 0; | |
3150 | /* Trim trailing spaces; while the preprocessor gets rid of most, | |
3151 | there are weird usage patterns that can introduce them | |
3152 | (i.e. using strings for macro args). */ | |
3882b010 | 3153 | while (len > 0 && ISSPACE (operands[numexp].buf[len - 1])) |
9a736b6b NC |
3154 | operands[numexp].buf[--len] = 0; |
3155 | lptr = op_end; | |
3156 | ++numexp; | |
3157 | } | |
1aea3bb8 | 3158 | else |
9a736b6b NC |
3159 | { |
3160 | if (expecting_operand || *lptr == ',') | |
3161 | { | |
3162 | as_bad ("Expecting operand after ','"); | |
3163 | return -1; | |
3164 | } | |
3165 | } | |
39bec121 | 3166 | if (*lptr == ',') |
9a736b6b NC |
3167 | { |
3168 | if (*++lptr == '\0') | |
3169 | { | |
3170 | as_bad ("Expecting operand after ','"); | |
3171 | return -1; | |
3172 | } | |
3173 | expecting_operand = 1; | |
3174 | } | |
39bec121 TW |
3175 | } |
3176 | ||
3882b010 | 3177 | while (*lptr && ISSPACE (*lptr++)) |
39bec121 | 3178 | ; |
1aea3bb8 | 3179 | if (!is_end_of_line[(int) *lptr]) |
39bec121 TW |
3180 | { |
3181 | as_bad ("Extra junk on line"); | |
3182 | return -1; | |
3183 | } | |
3184 | ||
d0313fb7 | 3185 | /* OK, now parse them into expressions. */ |
1aea3bb8 | 3186 | for (i = 0; i < numexp; i++) |
39bec121 TW |
3187 | { |
3188 | memset (&operands[i].exp, 0, sizeof (operands[i].exp)); | |
3189 | if (operands[i].buf[0] == '#') | |
9a736b6b NC |
3190 | { |
3191 | /* Immediate. */ | |
3192 | parse_expression (operands[i].buf + 1, &operands[i].exp); | |
3193 | } | |
39bec121 | 3194 | else if (operands[i].buf[0] == '@') |
9a736b6b NC |
3195 | { |
3196 | /* Direct notation. */ | |
3197 | parse_expression (operands[i].buf + 1, &operands[i].exp); | |
3198 | } | |
39bec121 | 3199 | else if (operands[i].buf[0] == '*') |
9a736b6b NC |
3200 | { |
3201 | /* Indirect. */ | |
3202 | char *paren = strchr (operands[i].buf, '('); | |
f1e7a2c9 | 3203 | |
9a736b6b NC |
3204 | /* Allow immediate syntax in the inner expression. */ |
3205 | if (paren && paren[1] == '#') | |
3206 | *++paren = '('; | |
3207 | ||
3208 | /* Pull out the lk expression or SP offset, if present. */ | |
3209 | if (paren != NULL) | |
3210 | { | |
3211 | int len = strlen (paren); | |
3212 | char *end = paren + len; | |
3213 | int c; | |
f1e7a2c9 | 3214 | |
9a736b6b NC |
3215 | while (end[-1] != ')') |
3216 | if (--end <= paren) | |
3217 | { | |
3218 | as_bad (_("Badly formed address expression")); | |
3219 | return -1; | |
3220 | } | |
3221 | c = *end; | |
3222 | *end = '\0'; | |
3223 | parse_expression (paren, &operands[i].exp); | |
3224 | *end = c; | |
3225 | } | |
3226 | else | |
3227 | operands[i].exp.X_op = O_absent; | |
3228 | } | |
39bec121 | 3229 | else |
9a736b6b | 3230 | parse_expression (operands[i].buf, &operands[i].exp); |
39bec121 TW |
3231 | } |
3232 | ||
3233 | return numexp; | |
3234 | } | |
3235 | ||
d0313fb7 | 3236 | /* Predicates for different operand types. */ |
9a736b6b | 3237 | |
39bec121 | 3238 | static int |
5a49b8ac | 3239 | is_immediate (struct opstruct *operand) |
39bec121 | 3240 | { |
1aea3bb8 | 3241 | return *operand->buf == '#'; |
39bec121 TW |
3242 | } |
3243 | ||
3244 | /* This is distinguished from immediate because some numbers must be constants | |
d0313fb7 | 3245 | and must *not* have the '#' prefix. */ |
9a736b6b | 3246 | |
39bec121 | 3247 | static int |
5a49b8ac | 3248 | is_absolute (struct opstruct *operand) |
39bec121 TW |
3249 | { |
3250 | return operand->exp.X_op == O_constant && !is_immediate (operand); | |
3251 | } | |
3252 | ||
d0313fb7 | 3253 | /* Is this an indirect operand? */ |
9a736b6b | 3254 | |
39bec121 | 3255 | static int |
5a49b8ac | 3256 | is_indirect (struct opstruct *operand) |
39bec121 TW |
3257 | { |
3258 | return operand->buf[0] == '*'; | |
3259 | } | |
3260 | ||
d0313fb7 | 3261 | /* Is this a valid dual-memory operand? */ |
9a736b6b | 3262 | |
39bec121 | 3263 | static int |
5a49b8ac | 3264 | is_dual (struct opstruct *operand) |
39bec121 TW |
3265 | { |
3266 | if (is_indirect (operand) && strncasecmp (operand->buf, "*ar", 3) == 0) | |
3267 | { | |
3268 | char *tmp = operand->buf + 3; | |
3269 | int arf; | |
3270 | int valid_mod; | |
1aea3bb8 | 3271 | |
39bec121 | 3272 | arf = *tmp++ - '0'; |
d0313fb7 | 3273 | /* Only allow *ARx, *ARx-, *ARx+, or *ARx+0%. */ |
39bec121 | 3274 | valid_mod = *tmp == '\0' || |
9a736b6b NC |
3275 | strcasecmp (tmp, "-") == 0 || |
3276 | strcasecmp (tmp, "+") == 0 || | |
3277 | strcasecmp (tmp, "+0%") == 0; | |
39bec121 TW |
3278 | return arf >= 2 && arf <= 5 && valid_mod; |
3279 | } | |
3280 | return 0; | |
3281 | } | |
3282 | ||
3283 | static int | |
5a49b8ac | 3284 | is_mmreg (struct opstruct *operand) |
39bec121 | 3285 | { |
9a736b6b NC |
3286 | return (is_absolute (operand) |
3287 | || is_immediate (operand) | |
3288 | || hash_find (mmreg_hash, operand->buf) != 0); | |
39bec121 TW |
3289 | } |
3290 | ||
3291 | static int | |
5a49b8ac | 3292 | is_type (struct opstruct *operand, enum optype type) |
39bec121 TW |
3293 | { |
3294 | switch (type) | |
3295 | { | |
3296 | case OP_None: | |
3297 | return operand->buf[0] == 0; | |
3298 | case OP_Xmem: | |
3299 | case OP_Ymem: | |
3300 | return is_dual (operand); | |
3301 | case OP_Sind: | |
3302 | return is_indirect (operand); | |
3303 | case OP_xpmad_ms7: | |
d0313fb7 | 3304 | /* This one *must* be immediate. */ |
39bec121 TW |
3305 | return is_immediate (operand); |
3306 | case OP_xpmad: | |
3307 | case OP_pmad: | |
3308 | case OP_PA: | |
3309 | case OP_dmad: | |
3310 | case OP_Lmem: | |
3311 | case OP_MMR: | |
3312 | return 1; | |
3313 | case OP_Smem: | |
d0313fb7 | 3314 | /* Address may be a numeric, indirect, or an expression. */ |
39bec121 TW |
3315 | return !is_immediate (operand); |
3316 | case OP_MMRY: | |
3317 | case OP_MMRX: | |
3318 | return is_mmreg (operand); | |
3319 | case OP_SRC: | |
3320 | case OP_SRC1: | |
3321 | case OP_RND: | |
3322 | case OP_DST: | |
3323 | return is_accumulator (operand); | |
3324 | case OP_B: | |
3882b010 | 3325 | return is_accumulator (operand) && TOUPPER (operand->buf[0]) == 'B'; |
39bec121 | 3326 | case OP_A: |
3882b010 | 3327 | return is_accumulator (operand) && TOUPPER (operand->buf[0]) == 'A'; |
39bec121 | 3328 | case OP_ARX: |
1aea3bb8 | 3329 | return strncasecmp ("ar", operand->buf, 2) == 0 |
3882b010 | 3330 | && ISDIGIT (operand->buf[2]); |
39bec121 TW |
3331 | case OP_SBIT: |
3332 | return hash_find (sbit_hash, operand->buf) != 0 || is_absolute (operand); | |
3333 | case OP_CC: | |
3334 | return hash_find (cc_hash, operand->buf) != 0; | |
3335 | case OP_CC2: | |
3336 | return hash_find (cc2_hash, operand->buf) != 0; | |
3337 | case OP_CC3: | |
1aea3bb8 | 3338 | return hash_find (cc3_hash, operand->buf) != 0 |
9a736b6b | 3339 | || is_immediate (operand) || is_absolute (operand); |
39bec121 TW |
3340 | case OP_16: |
3341 | return (is_immediate (operand) || is_absolute (operand)) | |
9a736b6b | 3342 | && operand->exp.X_add_number == 16; |
39bec121 | 3343 | case OP_N: |
d0313fb7 | 3344 | /* Allow st0 or st1 instead of a numeric. */ |
39bec121 | 3345 | return is_absolute (operand) || is_immediate (operand) || |
9a736b6b NC |
3346 | strcasecmp ("st0", operand->buf) == 0 || |
3347 | strcasecmp ("st1", operand->buf) == 0; | |
39bec121 TW |
3348 | case OP_12: |
3349 | case OP_123: | |
3350 | return is_absolute (operand) || is_immediate (operand); | |
3351 | case OP_SHFT: | |
3352 | return (is_immediate (operand) || is_absolute (operand)) | |
9a736b6b | 3353 | && operand->exp.X_add_number >= 0 && operand->exp.X_add_number < 16; |
39bec121 | 3354 | case OP_SHIFT: |
d0313fb7 | 3355 | /* Let this one catch out-of-range values. */ |
39bec121 | 3356 | return (is_immediate (operand) || is_absolute (operand)) |
9a736b6b | 3357 | && operand->exp.X_add_number != 16; |
39bec121 TW |
3358 | case OP_BITC: |
3359 | case OP_031: | |
3360 | case OP_k8: | |
3361 | return is_absolute (operand) || is_immediate (operand); | |
3362 | case OP_k8u: | |
1aea3bb8 | 3363 | return is_immediate (operand) |
9a736b6b NC |
3364 | && operand->exp.X_op == O_constant |
3365 | && operand->exp.X_add_number >= 0 | |
3366 | && operand->exp.X_add_number < 256; | |
39bec121 TW |
3367 | case OP_lk: |
3368 | case OP_lku: | |
1aea3bb8 | 3369 | /* Allow anything; assumes opcodes are ordered with Smem operands |
9a736b6b | 3370 | versions first. */ |
39bec121 TW |
3371 | return 1; |
3372 | case OP_k5: | |
3373 | case OP_k3: | |
3374 | case OP_k9: | |
d0313fb7 | 3375 | /* Just make sure it's an integer; check range later. */ |
39bec121 TW |
3376 | return is_immediate (operand); |
3377 | case OP_T: | |
1aea3bb8 | 3378 | return strcasecmp ("t", operand->buf) == 0 || |
9a736b6b | 3379 | strcasecmp ("treg", operand->buf) == 0; |
39bec121 TW |
3380 | case OP_TS: |
3381 | return strcasecmp ("ts", operand->buf) == 0; | |
3382 | case OP_ASM: | |
3383 | return strcasecmp ("asm", operand->buf) == 0; | |
3384 | case OP_TRN: | |
3385 | return strcasecmp ("trn", operand->buf) == 0; | |
3386 | case OP_DP: | |
3387 | return strcasecmp ("dp", operand->buf) == 0; | |
3388 | case OP_ARP: | |
3389 | return strcasecmp ("arp", operand->buf) == 0; | |
3390 | default: | |
3391 | return 0; | |
3392 | } | |
3393 | } | |
3394 | ||
3395 | static int | |
5a49b8ac AM |
3396 | operands_match (tic54x_insn *insn, |
3397 | struct opstruct *operands, | |
3398 | int opcount, | |
3399 | const enum optype *refoptype, | |
3400 | int minops, | |
3401 | int maxops) | |
39bec121 TW |
3402 | { |
3403 | int op = 0, refop = 0; | |
3404 | ||
3405 | if (opcount == 0 && minops == 0) | |
f1e7a2c9 | 3406 | return 1; |
39bec121 TW |
3407 | |
3408 | while (op <= maxops && refop <= maxops) | |
3409 | { | |
3410 | while (!is_type (&operands[op], OPTYPE (refoptype[refop]))) | |
9a736b6b NC |
3411 | { |
3412 | /* Skip an optional template operand if it doesn't agree | |
3413 | with the current operand. */ | |
3414 | if (refoptype[refop] & OPT) | |
3415 | { | |
3416 | ++refop; | |
3417 | --maxops; | |
3418 | if (refop > maxops) | |
3419 | return 0; | |
3420 | } | |
3421 | else | |
3422 | return 0; | |
3423 | } | |
39bec121 | 3424 | |
d0313fb7 | 3425 | /* Save the actual operand type for later use. */ |
39bec121 TW |
3426 | operands[op].type = OPTYPE (refoptype[refop]); |
3427 | ++refop; | |
3428 | ++op; | |
d0313fb7 | 3429 | /* Have we matched them all yet? */ |
39bec121 | 3430 | if (op == opcount) |
9a736b6b NC |
3431 | { |
3432 | while (op < maxops) | |
3433 | { | |
3434 | /* If a later operand is *not* optional, no match. */ | |
3435 | if ((refoptype[refop] & OPT) == 0) | |
3436 | return 0; | |
3437 | /* Flag any implicit default OP_DST operands so we know to add | |
3438 | them explicitly when encoding the operand later. */ | |
3439 | if (OPTYPE (refoptype[refop]) == OP_DST) | |
3440 | insn->using_default_dst = 1; | |
3441 | ++refop; | |
3442 | ++op; | |
3443 | } | |
3444 | ||
3445 | return 1; | |
3446 | } | |
39bec121 TW |
3447 | } |
3448 | ||
3449 | return 0; | |
3450 | } | |
3451 | ||
1aea3bb8 | 3452 | /* 16-bit direct memory address |
39bec121 TW |
3453 | Explicit dmad operands are always in last word of insn (usually second |
3454 | word, but bumped to third if lk addressing is used) | |
3455 | ||
3456 | We allow *(dmad) notation because the TI assembler allows it. | |
3457 | ||
1aea3bb8 | 3458 | XPC_CODE: |
39bec121 TW |
3459 | 0 for 16-bit addresses |
3460 | 1 for full 23-bit addresses | |
d0313fb7 | 3461 | 2 for the upper 7 bits of a 23-bit address (LDX). */ |
9a736b6b | 3462 | |
39bec121 | 3463 | static int |
5a49b8ac | 3464 | encode_dmad (tic54x_insn *insn, struct opstruct *operand, int xpc_code) |
39bec121 TW |
3465 | { |
3466 | int op = 1 + insn->is_lkaddr; | |
3467 | ||
d0313fb7 | 3468 | /* Only allow *(dmad) expressions; all others are invalid. */ |
1aea3bb8 | 3469 | if (is_indirect (operand) && operand->buf[strlen (operand->buf) - 1] != ')') |
39bec121 TW |
3470 | { |
3471 | as_bad (_("Invalid dmad syntax '%s'"), operand->buf); | |
3472 | return 0; | |
3473 | } | |
3474 | ||
3475 | insn->opcode[op].addr_expr = operand->exp; | |
3476 | ||
3477 | if (insn->opcode[op].addr_expr.X_op == O_constant) | |
3478 | { | |
3479 | valueT value = insn->opcode[op].addr_expr.X_add_number; | |
f1e7a2c9 | 3480 | |
39bec121 | 3481 | if (xpc_code == 1) |
9a736b6b NC |
3482 | { |
3483 | insn->opcode[0].word &= 0xFF80; | |
3484 | insn->opcode[0].word |= (value >> 16) & 0x7F; | |
3485 | insn->opcode[1].word = value & 0xFFFF; | |
3486 | } | |
39bec121 | 3487 | else if (xpc_code == 2) |
9a736b6b | 3488 | insn->opcode[op].word = (value >> 16) & 0xFFFF; |
39bec121 | 3489 | else |
9a736b6b | 3490 | insn->opcode[op].word = value; |
39bec121 TW |
3491 | } |
3492 | else | |
3493 | { | |
d0313fb7 | 3494 | /* Do the fixup later; just store the expression. */ |
39bec121 TW |
3495 | insn->opcode[op].word = 0; |
3496 | insn->opcode[op].r_nchars = 2; | |
3497 | ||
3498 | if (amode == c_mode) | |
9a736b6b | 3499 | insn->opcode[op].r_type = BFD_RELOC_TIC54X_16_OF_23; |
39bec121 | 3500 | else if (xpc_code == 1) |
9a736b6b NC |
3501 | { |
3502 | /* This relocation spans two words, so adjust accordingly. */ | |
3503 | insn->opcode[0].addr_expr = operand->exp; | |
3504 | insn->opcode[0].r_type = BFD_RELOC_TIC54X_23; | |
3505 | insn->opcode[0].r_nchars = 4; | |
3506 | insn->opcode[0].unresolved = 1; | |
3507 | /* It's really 2 words, but we want to stop encoding after the | |
3508 | first, since we must encode both words at once. */ | |
3509 | insn->words = 1; | |
3510 | } | |
39bec121 | 3511 | else if (xpc_code == 2) |
9a736b6b | 3512 | insn->opcode[op].r_type = BFD_RELOC_TIC54X_MS7_OF_23; |
39bec121 | 3513 | else |
9a736b6b | 3514 | insn->opcode[op].r_type = BFD_RELOC_TIC54X_16_OF_23; |
39bec121 TW |
3515 | |
3516 | insn->opcode[op].unresolved = 1; | |
3517 | } | |
3518 | ||
3519 | return 1; | |
3520 | } | |
3521 | ||
d0313fb7 | 3522 | /* 7-bit direct address encoding. */ |
9a736b6b | 3523 | |
39bec121 | 3524 | static int |
5a49b8ac | 3525 | encode_address (tic54x_insn *insn, struct opstruct *operand) |
39bec121 | 3526 | { |
d0313fb7 | 3527 | /* Assumes that dma addresses are *always* in word 0 of the opcode. */ |
39bec121 TW |
3528 | insn->opcode[0].addr_expr = operand->exp; |
3529 | ||
3530 | if (operand->exp.X_op == O_constant) | |
3531 | insn->opcode[0].word |= (operand->exp.X_add_number & 0x7F); | |
3532 | else | |
3533 | { | |
f1e7a2c9 NC |
3534 | if (operand->exp.X_op == O_register) |
3535 | as_bad (_("Use the .mmregs directive to use memory-mapped register names such as '%s'"), operand->buf); | |
d0313fb7 | 3536 | /* Do the fixup later; just store the expression. */ |
39bec121 TW |
3537 | insn->opcode[0].r_nchars = 1; |
3538 | insn->opcode[0].r_type = BFD_RELOC_TIC54X_PARTLS7; | |
3539 | insn->opcode[0].unresolved = 1; | |
3540 | } | |
3541 | ||
3542 | return 1; | |
3543 | } | |
3544 | ||
3545 | static int | |
5a49b8ac | 3546 | encode_indirect (tic54x_insn *insn, struct opstruct *operand) |
39bec121 TW |
3547 | { |
3548 | int arf; | |
3549 | int mod; | |
3550 | ||
3551 | if (insn->is_lkaddr) | |
3552 | { | |
d0313fb7 | 3553 | /* lk addresses always go in the second insn word. */ |
3882b010 | 3554 | mod = ((TOUPPER (operand->buf[1]) == 'A') ? 12 : |
9a736b6b NC |
3555 | (operand->buf[1] == '(') ? 15 : |
3556 | (strchr (operand->buf, '%') != NULL) ? 14 : 13); | |
39bec121 | 3557 | arf = ((mod == 12) ? operand->buf[3] - '0' : |
9a736b6b | 3558 | (mod == 15) ? 0 : operand->buf[4] - '0'); |
1aea3bb8 | 3559 | |
39bec121 TW |
3560 | insn->opcode[1].addr_expr = operand->exp; |
3561 | ||
3562 | if (operand->exp.X_op == O_constant) | |
9a736b6b | 3563 | insn->opcode[1].word = operand->exp.X_add_number; |
39bec121 | 3564 | else |
9a736b6b NC |
3565 | { |
3566 | insn->opcode[1].word = 0; | |
3567 | insn->opcode[1].r_nchars = 2; | |
3568 | insn->opcode[1].r_type = BFD_RELOC_TIC54X_16_OF_23; | |
3569 | insn->opcode[1].unresolved = 1; | |
3570 | } | |
39bec121 TW |
3571 | } |
3572 | else if (strncasecmp (operand->buf, "*sp (", 4) == 0) | |
3573 | { | |
d0313fb7 | 3574 | /* Stack offsets look the same as 7-bit direct addressing. */ |
39bec121 TW |
3575 | return encode_address (insn, operand); |
3576 | } | |
3577 | else | |
3578 | { | |
3882b010 | 3579 | arf = (TOUPPER (operand->buf[1]) == 'A' ? |
9a736b6b | 3580 | operand->buf[3] : operand->buf[4]) - '0'; |
1aea3bb8 NC |
3581 | |
3582 | if (operand->buf[1] == '+') | |
9a736b6b NC |
3583 | { |
3584 | mod = 3; /* *+ARx */ | |
3585 | if (insn->tm->flags & FL_SMR) | |
3586 | as_warn (_("Address mode *+ARx is write-only. " | |
3587 | "Results of reading are undefined.")); | |
3588 | } | |
1aea3bb8 | 3589 | else if (operand->buf[4] == '\0') |
9a736b6b | 3590 | mod = 0; /* *ARx */ |
39bec121 | 3591 | else if (operand->buf[5] == '\0') |
9a736b6b | 3592 | mod = (operand->buf[4] == '-' ? 1 : 2); /* *ARx+ / *ARx- */ |
39bec121 | 3593 | else if (operand->buf[6] == '\0') |
9a736b6b NC |
3594 | { |
3595 | if (operand->buf[5] == '0') | |
3596 | mod = (operand->buf[4] == '-' ? 5 : 6); /* *ARx+0 / *ARx-0 */ | |
3597 | else | |
3598 | mod = (operand->buf[4] == '-' ? 8 : 10);/* *ARx+% / *ARx-% */ | |
3599 | } | |
3882b010 | 3600 | else if (TOUPPER (operand->buf[6]) == 'B') |
9a736b6b | 3601 | mod = (operand->buf[4] == '-' ? 4 : 7); /* ARx+0B / *ARx-0B */ |
3882b010 | 3602 | else if (TOUPPER (operand->buf[6]) == '%') |
9a736b6b | 3603 | mod = (operand->buf[4] == '-' ? 9 : 11); /* ARx+0% / *ARx - 0% */ |
39bec121 | 3604 | else |
9a736b6b NC |
3605 | { |
3606 | as_bad (_("Unrecognized indirect address format \"%s\""), | |
3607 | operand->buf); | |
3608 | return 0; | |
3609 | } | |
1aea3bb8 | 3610 | } |
39bec121 | 3611 | |
1aea3bb8 | 3612 | insn->opcode[0].word |= 0x80 | (mod << 3) | arf; |
39bec121 TW |
3613 | |
3614 | return 1; | |
3615 | } | |
3616 | ||
3617 | static int | |
5a49b8ac AM |
3618 | encode_integer (tic54x_insn *insn, |
3619 | struct opstruct *operand, | |
3620 | int which, | |
3621 | int min, | |
3622 | int max, | |
3623 | unsigned short mask) | |
39bec121 TW |
3624 | { |
3625 | long parse, integer; | |
3626 | ||
3627 | insn->opcode[which].addr_expr = operand->exp; | |
3628 | ||
3629 | if (operand->exp.X_op == O_constant) | |
3630 | { | |
3631 | parse = operand->exp.X_add_number; | |
d0313fb7 | 3632 | /* Hack -- fixup for 16-bit hex quantities that get converted positive |
9a736b6b | 3633 | instead of negative. */ |
39bec121 | 3634 | if ((parse & 0x8000) && min == -32768 && max == 32767) |
9a736b6b | 3635 | integer = (short) parse; |
39bec121 | 3636 | else |
9a736b6b | 3637 | integer = parse; |
39bec121 TW |
3638 | |
3639 | if (integer >= min && integer <= max) | |
9a736b6b NC |
3640 | { |
3641 | insn->opcode[which].word |= (integer & mask); | |
3642 | return 1; | |
3643 | } | |
1aea3bb8 | 3644 | as_bad (_("Operand '%s' out of range (%d <= x <= %d)"), |
9a736b6b | 3645 | operand->buf, min, max); |
39bec121 TW |
3646 | } |
3647 | else | |
3648 | { | |
3649 | if (insn->opcode[which].addr_expr.X_op == O_constant) | |
9a736b6b NC |
3650 | { |
3651 | insn->opcode[which].word |= | |
3652 | insn->opcode[which].addr_expr.X_add_number & mask; | |
3653 | } | |
39bec121 | 3654 | else |
9a736b6b NC |
3655 | { |
3656 | /* Do the fixup later; just store the expression. */ | |
3657 | bfd_reloc_code_real_type rtype = | |
3658 | (mask == 0x1FF ? BFD_RELOC_TIC54X_PARTMS9 : | |
3659 | mask == 0xFFFF ? BFD_RELOC_TIC54X_16_OF_23 : | |
3660 | mask == 0x7F ? BFD_RELOC_TIC54X_PARTLS7 : BFD_RELOC_8); | |
3661 | int size = (mask == 0x1FF || mask == 0xFFFF) ? 2 : 1; | |
3662 | ||
3663 | if (rtype == BFD_RELOC_8) | |
3664 | as_bad (_("Error in relocation handling")); | |
3665 | ||
3666 | insn->opcode[which].r_nchars = size; | |
3667 | insn->opcode[which].r_type = rtype; | |
3668 | insn->opcode[which].unresolved = 1; | |
3669 | } | |
39bec121 TW |
3670 | |
3671 | return 1; | |
3672 | } | |
3673 | ||
3674 | return 0; | |
3675 | } | |
3676 | ||
3677 | static int | |
5a49b8ac | 3678 | encode_condition (tic54x_insn *insn, struct opstruct *operand) |
39bec121 | 3679 | { |
1aea3bb8 | 3680 | symbol *cc = (symbol *) hash_find (cc_hash, operand->buf); |
39bec121 TW |
3681 | if (!cc) |
3682 | { | |
3683 | as_bad (_("Unrecognized condition code \"%s\""), operand->buf); | |
3684 | return 0; | |
3685 | } | |
3686 | #define CC_GROUP 0x40 | |
3687 | #define CC_ACC 0x08 | |
3688 | #define CATG_A1 0x07 | |
3689 | #define CATG_B1 0x30 | |
3690 | #define CATG_A2 0x30 | |
3691 | #define CATG_B2 0x0C | |
3692 | #define CATG_C2 0x03 | |
d0313fb7 | 3693 | /* Disallow group 1 conditions mixed with group 2 conditions |
39bec121 | 3694 | if group 1, allow only one category A and one category B |
d0313fb7 | 3695 | if group 2, allow only one each of category A, B, and C. */ |
39bec121 TW |
3696 | if (((insn->opcode[0].word & 0xFF) != 0)) |
3697 | { | |
3698 | if ((insn->opcode[0].word & CC_GROUP) != (cc->value & CC_GROUP)) | |
9a736b6b NC |
3699 | { |
3700 | as_bad (_("Condition \"%s\" does not match preceding group"), | |
3701 | operand->buf); | |
3702 | return 0; | |
3703 | } | |
39bec121 | 3704 | if (insn->opcode[0].word & CC_GROUP) |
9a736b6b NC |
3705 | { |
3706 | if ((insn->opcode[0].word & CC_ACC) != (cc->value & CC_ACC)) | |
3707 | { | |
3708 | as_bad (_("Condition \"%s\" uses a different accumulator from " | |
3709 | "a preceding condition"), | |
3710 | operand->buf); | |
3711 | return 0; | |
3712 | } | |
3713 | if ((insn->opcode[0].word & CATG_A1) && (cc->value & CATG_A1)) | |
3714 | { | |
3715 | as_bad (_("Only one comparison conditional allowed")); | |
3716 | return 0; | |
3717 | } | |
3718 | if ((insn->opcode[0].word & CATG_B1) && (cc->value & CATG_B1)) | |
3719 | { | |
3720 | as_bad (_("Only one overflow conditional allowed")); | |
3721 | return 0; | |
3722 | } | |
3723 | } | |
f1e7a2c9 NC |
3724 | else if ( ((insn->opcode[0].word & CATG_A2) && (cc->value & CATG_A2)) |
3725 | || ((insn->opcode[0].word & CATG_B2) && (cc->value & CATG_B2)) | |
3726 | || ((insn->opcode[0].word & CATG_C2) && (cc->value & CATG_C2))) | |
9a736b6b NC |
3727 | { |
3728 | as_bad (_("Duplicate %s conditional"), operand->buf); | |
3729 | return 0; | |
3730 | } | |
39bec121 TW |
3731 | } |
3732 | ||
3733 | insn->opcode[0].word |= cc->value; | |
3734 | return 1; | |
3735 | } | |
3736 | ||
3737 | static int | |
5a49b8ac | 3738 | encode_cc3 (tic54x_insn *insn, struct opstruct *operand) |
39bec121 | 3739 | { |
1aea3bb8 | 3740 | symbol *cc3 = (symbol *) hash_find (cc3_hash, operand->buf); |
39bec121 TW |
3741 | int value = cc3 ? cc3->value : operand->exp.X_add_number << 8; |
3742 | ||
3743 | if ((value & 0x0300) != value) | |
3744 | { | |
3745 | as_bad (_("Unrecognized condition code \"%s\""), operand->buf); | |
3746 | return 0; | |
3747 | } | |
3748 | insn->opcode[0].word |= value; | |
3749 | return 1; | |
3750 | } | |
3751 | ||
3752 | static int | |
5a49b8ac | 3753 | encode_arx (tic54x_insn *insn, struct opstruct *operand) |
39bec121 TW |
3754 | { |
3755 | int arf = strlen (operand->buf) >= 3 ? operand->buf[2] - '0' : -1; | |
f1e7a2c9 | 3756 | |
39bec121 TW |
3757 | if (strncasecmp ("ar", operand->buf, 2) || arf < 0 || arf > 7) |
3758 | { | |
3759 | as_bad (_("Invalid auxiliary register (use AR0-AR7)")); | |
3760 | return 0; | |
3761 | } | |
3762 | insn->opcode[0].word |= arf; | |
3763 | return 1; | |
3764 | } | |
3765 | ||
3766 | static int | |
5a49b8ac | 3767 | encode_cc2 (tic54x_insn *insn, struct opstruct *operand) |
39bec121 | 3768 | { |
1aea3bb8 | 3769 | symbol *cc2 = (symbol *) hash_find (cc2_hash, operand->buf); |
f1e7a2c9 | 3770 | |
39bec121 TW |
3771 | if (!cc2) |
3772 | { | |
3773 | as_bad (_("Unrecognized condition code \"%s\""), operand->buf); | |
3774 | return 0; | |
3775 | } | |
3776 | insn->opcode[0].word |= cc2->value; | |
3777 | return 1; | |
3778 | } | |
3779 | ||
3780 | static int | |
5a49b8ac | 3781 | encode_operand (tic54x_insn *insn, enum optype type, struct opstruct *operand) |
39bec121 | 3782 | { |
6e917903 | 3783 | int ext = (insn->tm->flags & FL_EXT) != 0; |
39bec121 TW |
3784 | |
3785 | if (type == OP_MMR && operand->exp.X_op != O_constant) | |
3786 | { | |
d0313fb7 | 3787 | /* Disallow long-constant addressing for memory-mapped addressing. */ |
39bec121 | 3788 | if (insn->is_lkaddr) |
9a736b6b NC |
3789 | { |
3790 | as_bad (_("lk addressing modes are invalid for memory-mapped " | |
3791 | "register addressing")); | |
3792 | return 0; | |
3793 | } | |
39bec121 | 3794 | type = OP_Smem; |
d0313fb7 | 3795 | /* Warn about *+ARx when used with MMR operands. */ |
39bec121 | 3796 | if (strncasecmp (operand->buf, "*+ar", 4) == 0) |
9a736b6b NC |
3797 | { |
3798 | as_warn (_("Address mode *+ARx is not allowed in memory-mapped " | |
3799 | "register addressing. Resulting behavior is " | |
3800 | "undefined.")); | |
3801 | } | |
39bec121 TW |
3802 | } |
3803 | ||
3804 | switch (type) | |
3805 | { | |
3806 | case OP_None: | |
3807 | return 1; | |
3808 | case OP_dmad: | |
d0313fb7 | 3809 | /* 16-bit immediate value. */ |
39bec121 TW |
3810 | return encode_dmad (insn, operand, 0); |
3811 | case OP_SRC: | |
3882b010 | 3812 | if (TOUPPER (*operand->buf) == 'B') |
9a736b6b NC |
3813 | { |
3814 | insn->opcode[ext ? (1 + insn->is_lkaddr) : 0].word |= (1 << 9); | |
3815 | if (insn->using_default_dst) | |
3816 | insn->opcode[ext ? (1 + insn->is_lkaddr) : 0].word |= (1 << 8); | |
3817 | } | |
39bec121 TW |
3818 | return 1; |
3819 | case OP_RND: | |
5f5e16be | 3820 | /* Make sure this agrees with the OP_DST operand. */ |
3882b010 | 3821 | if (!((TOUPPER (operand->buf[0]) == 'B') ^ |
9a736b6b NC |
3822 | ((insn->opcode[0].word & (1 << 8)) != 0))) |
3823 | { | |
3824 | as_bad (_("Destination accumulator for each part of this parallel " | |
3825 | "instruction must be different")); | |
3826 | return 0; | |
3827 | } | |
39bec121 TW |
3828 | return 1; |
3829 | case OP_SRC1: | |
3830 | case OP_DST: | |
3882b010 | 3831 | if (TOUPPER (operand->buf[0]) == 'B') |
9a736b6b | 3832 | insn->opcode[ext ? (1 + insn->is_lkaddr) : 0].word |= (1 << 8); |
39bec121 TW |
3833 | return 1; |
3834 | case OP_Xmem: | |
3835 | case OP_Ymem: | |
1aea3bb8 | 3836 | { |
9a736b6b NC |
3837 | int mod = (operand->buf[4] == '\0' ? 0 : /* *arx */ |
3838 | operand->buf[4] == '-' ? 1 : /* *arx- */ | |
3839 | operand->buf[5] == '\0' ? 2 : 3); /* *arx+, *arx+0% */ | |
1aea3bb8 NC |
3840 | int arf = operand->buf[3] - '0' - 2; |
3841 | int code = (mod << 2) | arf; | |
3842 | insn->opcode[0].word |= (code << (type == OP_Xmem ? 4 : 0)); | |
3843 | return 1; | |
3844 | } | |
39bec121 TW |
3845 | case OP_Lmem: |
3846 | case OP_Smem: | |
3847 | if (!is_indirect (operand)) | |
9a736b6b NC |
3848 | return encode_address (insn, operand); |
3849 | /* Fall through. */ | |
39bec121 TW |
3850 | case OP_Sind: |
3851 | return encode_indirect (insn, operand); | |
3852 | case OP_xpmad_ms7: | |
3853 | return encode_dmad (insn, operand, 2); | |
3854 | case OP_xpmad: | |
3855 | return encode_dmad (insn, operand, 1); | |
3856 | case OP_PA: | |
3857 | case OP_pmad: | |
3858 | return encode_dmad (insn, operand, 0); | |
3859 | case OP_ARX: | |
3860 | return encode_arx (insn, operand); | |
3861 | case OP_MMRX: | |
3862 | case OP_MMRY: | |
3863 | case OP_MMR: | |
1aea3bb8 NC |
3864 | { |
3865 | int value = operand->exp.X_add_number; | |
3866 | ||
3867 | if (type == OP_MMR) | |
3868 | insn->opcode[0].word |= value; | |
3869 | else | |
3870 | { | |
3871 | if (value < 16 || value > 24) | |
3872 | { | |
3873 | as_bad (_("Memory mapped register \"%s\" out of range"), | |
3874 | operand->buf); | |
3875 | return 0; | |
3876 | } | |
3877 | if (type == OP_MMRX) | |
3878 | insn->opcode[0].word |= (value - 16) << 4; | |
3879 | else | |
3880 | insn->opcode[0].word |= (value - 16); | |
3881 | } | |
3882 | return 1; | |
39bec121 | 3883 | } |
39bec121 TW |
3884 | case OP_B: |
3885 | case OP_A: | |
3886 | return 1; | |
3887 | case OP_SHFT: | |
1aea3bb8 | 3888 | return encode_integer (insn, operand, ext + insn->is_lkaddr, |
9a736b6b | 3889 | 0, 15, 0xF); |
39bec121 | 3890 | case OP_SHIFT: |
1aea3bb8 | 3891 | return encode_integer (insn, operand, ext + insn->is_lkaddr, |
9a736b6b | 3892 | -16, 15, 0x1F); |
39bec121 TW |
3893 | case OP_lk: |
3894 | return encode_integer (insn, operand, 1 + insn->is_lkaddr, | |
9a736b6b | 3895 | -32768, 32767, 0xFFFF); |
39bec121 TW |
3896 | case OP_CC: |
3897 | return encode_condition (insn, operand); | |
3898 | case OP_CC2: | |
3899 | return encode_cc2 (insn, operand); | |
3900 | case OP_CC3: | |
3901 | return encode_cc3 (insn, operand); | |
3902 | case OP_BITC: | |
3903 | return encode_integer (insn, operand, 0, 0, 15, 0xF); | |
3904 | case OP_k8: | |
3905 | return encode_integer (insn, operand, 0, -128, 127, 0xFF); | |
3906 | case OP_123: | |
1aea3bb8 NC |
3907 | { |
3908 | int value = operand->exp.X_add_number; | |
3909 | int code; | |
3910 | if (value < 1 || value > 3) | |
3911 | { | |
3912 | as_bad (_("Invalid operand (use 1, 2, or 3)")); | |
3913 | return 0; | |
3914 | } | |
3915 | code = value == 1 ? 0 : value == 2 ? 0x2 : 0x1; | |
3916 | insn->opcode[0].word |= (code << 8); | |
3917 | return 1; | |
3918 | } | |
39bec121 TW |
3919 | case OP_031: |
3920 | return encode_integer (insn, operand, 0, 0, 31, 0x1F); | |
3921 | case OP_k8u: | |
3922 | return encode_integer (insn, operand, 0, 0, 255, 0xFF); | |
3923 | case OP_lku: | |
1aea3bb8 | 3924 | return encode_integer (insn, operand, 1 + insn->is_lkaddr, |
9a736b6b | 3925 | 0, 65535, 0xFFFF); |
39bec121 | 3926 | case OP_SBIT: |
1aea3bb8 NC |
3927 | { |
3928 | symbol *sbit = (symbol *) hash_find (sbit_hash, operand->buf); | |
3929 | int value = is_absolute (operand) ? | |
3930 | operand->exp.X_add_number : (sbit ? sbit->value : -1); | |
3931 | int reg = 0; | |
3932 | ||
3933 | if (insn->opcount == 1) | |
3934 | { | |
3935 | if (!sbit) | |
3936 | { | |
3937 | as_bad (_("A status register or status bit name is required")); | |
3938 | return 0; | |
3939 | } | |
3940 | /* Guess the register based on the status bit; "ovb" is the last | |
3941 | status bit defined for st0. */ | |
3942 | if (sbit > (symbol *) hash_find (sbit_hash, "ovb")) | |
3943 | reg = 1; | |
3944 | } | |
3945 | if (value == -1) | |
3946 | { | |
3947 | as_bad (_("Unrecognized status bit \"%s\""), operand->buf); | |
3948 | return 0; | |
3949 | } | |
3950 | insn->opcode[0].word |= value; | |
3951 | insn->opcode[0].word |= (reg << 9); | |
3952 | return 1; | |
3953 | } | |
39bec121 TW |
3954 | case OP_N: |
3955 | if (strcasecmp (operand->buf, "st0") == 0 | |
9a736b6b NC |
3956 | || strcasecmp (operand->buf, "st1") == 0) |
3957 | { | |
3958 | insn->opcode[0].word |= | |
3959 | ((unsigned short) (operand->buf[2] - '0')) << 9; | |
3960 | return 1; | |
3961 | } | |
39bec121 | 3962 | else if (operand->exp.X_op == O_constant |
9a736b6b NC |
3963 | && (operand->exp.X_add_number == 0 |
3964 | || operand->exp.X_add_number == 1)) | |
3965 | { | |
3966 | insn->opcode[0].word |= | |
3967 | ((unsigned short) (operand->exp.X_add_number)) << 9; | |
3968 | return 1; | |
3969 | } | |
39bec121 TW |
3970 | as_bad (_("Invalid status register \"%s\""), operand->buf); |
3971 | return 0; | |
3972 | case OP_k5: | |
3973 | return encode_integer (insn, operand, 0, -16, 15, 0x1F); | |
3974 | case OP_k3: | |
3975 | return encode_integer (insn, operand, 0, 0, 7, 0x7); | |
3976 | case OP_k9: | |
3977 | return encode_integer (insn, operand, 0, 0, 0x1FF, 0x1FF); | |
3978 | case OP_12: | |
1aea3bb8 | 3979 | if (operand->exp.X_add_number != 1 |
9a736b6b NC |
3980 | && operand->exp.X_add_number != 2) |
3981 | { | |
3982 | as_bad (_("Operand \"%s\" out of range (use 1 or 2)"), operand->buf); | |
3983 | return 0; | |
3984 | } | |
39bec121 TW |
3985 | insn->opcode[0].word |= (operand->exp.X_add_number - 1) << 9; |
3986 | return 1; | |
3987 | case OP_16: | |
3988 | case OP_T: | |
3989 | case OP_TS: | |
3990 | case OP_ASM: | |
3991 | case OP_TRN: | |
3992 | case OP_DP: | |
3993 | case OP_ARP: | |
d0313fb7 | 3994 | /* No encoding necessary. */ |
39bec121 TW |
3995 | return 1; |
3996 | default: | |
3997 | return 0; | |
3998 | } | |
3999 | ||
4000 | return 1; | |
4001 | } | |
4002 | ||
4003 | static void | |
5a49b8ac | 4004 | emit_insn (tic54x_insn *insn) |
39bec121 TW |
4005 | { |
4006 | int i; | |
6e917903 TW |
4007 | flagword oldflags = bfd_get_section_flags (stdoutput, now_seg); |
4008 | flagword flags = oldflags | SEC_CODE; | |
4009 | ||
4010 | if (! bfd_set_section_flags (stdoutput, now_seg, flags)) | |
4011 | as_warn (_("error setting flags for \"%s\": %s"), | |
4012 | bfd_section_name (stdoutput, now_seg), | |
4013 | bfd_errmsg (bfd_get_error ())); | |
1aea3bb8 NC |
4014 | |
4015 | for (i = 0; i < insn->words; i++) | |
39bec121 | 4016 | { |
1aea3bb8 | 4017 | int size = (insn->opcode[i].unresolved |
9a736b6b | 4018 | && insn->opcode[i].r_type == BFD_RELOC_TIC54X_23) ? 4 : 2; |
39bec121 TW |
4019 | char *p = frag_more (size); |
4020 | ||
4021 | if (size == 2) | |
9a736b6b | 4022 | md_number_to_chars (p, (valueT) insn->opcode[i].word, 2); |
39bec121 | 4023 | else |
9a736b6b | 4024 | md_number_to_chars (p, (valueT) insn->opcode[i].word << 16, 4); |
1aea3bb8 | 4025 | |
39bec121 | 4026 | if (insn->opcode[i].unresolved) |
9a736b6b NC |
4027 | fix_new_exp (frag_now, p - frag_now->fr_literal, |
4028 | insn->opcode[i].r_nchars, &insn->opcode[i].addr_expr, | |
b34976b6 | 4029 | FALSE, insn->opcode[i].r_type); |
39bec121 TW |
4030 | } |
4031 | } | |
4032 | ||
1aea3bb8 | 4033 | /* Convert the operand strings into appropriate opcode values |
d0313fb7 | 4034 | return the total number of words used by the instruction. */ |
9a736b6b | 4035 | |
39bec121 | 4036 | static int |
5a49b8ac | 4037 | build_insn (tic54x_insn *insn) |
39bec121 TW |
4038 | { |
4039 | int i; | |
4040 | ||
d0313fb7 | 4041 | /* Only non-parallel instructions support lk addressing. */ |
6e917903 | 4042 | if (!(insn->tm->flags & FL_PAR)) |
39bec121 | 4043 | { |
1aea3bb8 | 4044 | for (i = 0; i < insn->opcount; i++) |
9a736b6b NC |
4045 | { |
4046 | if ((OPTYPE (insn->operands[i].type) == OP_Smem | |
4047 | || OPTYPE (insn->operands[i].type) == OP_Lmem | |
4048 | || OPTYPE (insn->operands[i].type) == OP_Sind) | |
4049 | && strchr (insn->operands[i].buf, '(') | |
4050 | /* Don't mistake stack-relative addressing for lk addressing. */ | |
4051 | && strncasecmp (insn->operands[i].buf, "*sp (", 4) != 0) | |
4052 | { | |
4053 | insn->is_lkaddr = 1; | |
4054 | insn->lkoperand = i; | |
4055 | break; | |
4056 | } | |
4057 | } | |
39bec121 | 4058 | } |
6e917903 | 4059 | insn->words = insn->tm->words + insn->is_lkaddr; |
39bec121 | 4060 | |
6e917903 TW |
4061 | insn->opcode[0].word = insn->tm->opcode; |
4062 | if (insn->tm->flags & FL_EXT) | |
1aea3bb8 | 4063 | insn->opcode[1 + insn->is_lkaddr].word = insn->tm->opcode2; |
39bec121 | 4064 | |
9a736b6b | 4065 | for (i = 0; i < insn->opcount; i++) |
39bec121 TW |
4066 | { |
4067 | enum optype type = insn->operands[i].type; | |
f1e7a2c9 | 4068 | |
39bec121 | 4069 | if (!encode_operand (insn, type, &insn->operands[i])) |
9a736b6b | 4070 | return 0; |
39bec121 | 4071 | } |
6e917903 | 4072 | if (insn->tm->flags & FL_PAR) |
9a736b6b NC |
4073 | for (i = 0; i < insn->paropcount; i++) |
4074 | { | |
4075 | enum optype partype = insn->paroperands[i].type; | |
f1e7a2c9 | 4076 | |
9a736b6b NC |
4077 | if (!encode_operand (insn, partype, &insn->paroperands[i])) |
4078 | return 0; | |
4079 | } | |
39bec121 TW |
4080 | |
4081 | emit_insn (insn); | |
4082 | ||
4083 | return insn->words; | |
4084 | } | |
4085 | ||
4086 | static int | |
5a49b8ac | 4087 | optimize_insn (tic54x_insn *insn) |
39bec121 | 4088 | { |
1aea3bb8 | 4089 | /* Optimize some instructions, helping out the brain-dead programmer. */ |
39bec121 TW |
4090 | #define is_zero(op) ((op).exp.X_op == O_constant && (op).exp.X_add_number == 0) |
4091 | if (strcasecmp (insn->tm->name, "add") == 0) | |
4092 | { | |
9a736b6b NC |
4093 | if (insn->opcount > 1 |
4094 | && is_accumulator (&insn->operands[insn->opcount - 2]) | |
4095 | && is_accumulator (&insn->operands[insn->opcount - 1]) | |
4096 | && strcasecmp (insn->operands[insn->opcount - 2].buf, | |
4097 | insn->operands[insn->opcount - 1].buf) == 0) | |
4098 | { | |
4099 | --insn->opcount; | |
4100 | insn->using_default_dst = 1; | |
4101 | return 1; | |
4102 | } | |
1aea3bb8 | 4103 | |
d0313fb7 | 4104 | /* Try to collapse if Xmem and shift count is zero. */ |
9a736b6b NC |
4105 | if ((OPTYPE (insn->tm->operand_types[0]) == OP_Xmem |
4106 | && OPTYPE (insn->tm->operand_types[1]) == OP_SHFT | |
4107 | && is_zero (insn->operands[1])) | |
4108 | /* Or if Smem, shift is zero or absent, and SRC == DST. */ | |
4109 | || (OPTYPE (insn->tm->operand_types[0]) == OP_Smem | |
4110 | && OPTYPE (insn->tm->operand_types[1]) == OP_SHIFT | |
4111 | && is_type (&insn->operands[1], OP_SHIFT) | |
4112 | && is_zero (insn->operands[1]) && insn->opcount == 3)) | |
4113 | { | |
4114 | insn->operands[1] = insn->operands[2]; | |
4115 | insn->opcount = 2; | |
4116 | return 1; | |
4117 | } | |
39bec121 TW |
4118 | } |
4119 | else if (strcasecmp (insn->tm->name, "ld") == 0) | |
4120 | { | |
4121 | if (insn->opcount == 3 && insn->operands[0].type != OP_SRC) | |
9a736b6b NC |
4122 | { |
4123 | if ((OPTYPE (insn->tm->operand_types[1]) == OP_SHIFT | |
4124 | || OPTYPE (insn->tm->operand_types[1]) == OP_SHFT) | |
4125 | && is_zero (insn->operands[1]) | |
4126 | && (OPTYPE (insn->tm->operand_types[0]) != OP_lk | |
4127 | || (insn->operands[0].exp.X_op == O_constant | |
4128 | && insn->operands[0].exp.X_add_number <= 255 | |
4129 | && insn->operands[0].exp.X_add_number >= 0))) | |
4130 | { | |
4131 | insn->operands[1] = insn->operands[2]; | |
4132 | insn->opcount = 2; | |
4133 | return 1; | |
4134 | } | |
4135 | } | |
4136 | } | |
4137 | else if (strcasecmp (insn->tm->name, "sth") == 0 | |
4138 | || strcasecmp (insn->tm->name, "stl") == 0) | |
4139 | { | |
4140 | if ((OPTYPE (insn->tm->operand_types[1]) == OP_SHIFT | |
4141 | || OPTYPE (insn->tm->operand_types[1]) == OP_SHFT) | |
4142 | && is_zero (insn->operands[1])) | |
4143 | { | |
4144 | insn->operands[1] = insn->operands[2]; | |
4145 | insn->opcount = 2; | |
4146 | return 1; | |
4147 | } | |
39bec121 TW |
4148 | } |
4149 | else if (strcasecmp (insn->tm->name, "sub") == 0) | |
4150 | { | |
9a736b6b NC |
4151 | if (insn->opcount > 1 |
4152 | && is_accumulator (&insn->operands[insn->opcount - 2]) | |
4153 | && is_accumulator (&insn->operands[insn->opcount - 1]) | |
4154 | && strcasecmp (insn->operands[insn->opcount - 2].buf, | |
4155 | insn->operands[insn->opcount - 1].buf) == 0) | |
4156 | { | |
4157 | --insn->opcount; | |
4158 | insn->using_default_dst = 1; | |
4159 | return 1; | |
4160 | } | |
4161 | ||
f1e7a2c9 | 4162 | if ( ((OPTYPE (insn->tm->operand_types[0]) == OP_Smem |
9a736b6b NC |
4163 | && OPTYPE (insn->tm->operand_types[1]) == OP_SHIFT) |
4164 | || (OPTYPE (insn->tm->operand_types[0]) == OP_Xmem | |
f1e7a2c9 | 4165 | && OPTYPE (insn->tm->operand_types[1]) == OP_SHFT)) |
9a736b6b NC |
4166 | && is_zero (insn->operands[1]) |
4167 | && insn->opcount == 3) | |
4168 | { | |
4169 | insn->operands[1] = insn->operands[2]; | |
4170 | insn->opcount = 2; | |
4171 | return 1; | |
4172 | } | |
39bec121 TW |
4173 | } |
4174 | return 0; | |
4175 | } | |
4176 | ||
d0313fb7 | 4177 | /* Find a matching template if possible, and get the operand strings. */ |
9a736b6b | 4178 | |
39bec121 | 4179 | static int |
5a49b8ac | 4180 | tic54x_parse_insn (tic54x_insn *insn, char *line) |
39bec121 | 4181 | { |
1aea3bb8 | 4182 | insn->tm = (template *) hash_find (op_hash, insn->mnemonic); |
39bec121 TW |
4183 | if (!insn->tm) |
4184 | { | |
4185 | as_bad (_("Unrecognized instruction \"%s\""), insn->mnemonic); | |
4186 | return 0; | |
4187 | } | |
4188 | ||
4189 | insn->opcount = get_operands (insn->operands, line); | |
4190 | if (insn->opcount < 0) | |
1aea3bb8 | 4191 | return 0; |
39bec121 | 4192 | |
d0313fb7 | 4193 | /* Check each variation of operands for this mnemonic. */ |
39bec121 TW |
4194 | while (insn->tm->name && strcasecmp (insn->tm->name, insn->mnemonic) == 0) |
4195 | { | |
9a736b6b NC |
4196 | if (insn->opcount >= insn->tm->minops |
4197 | && insn->opcount <= insn->tm->maxops | |
4198 | && operands_match (insn, &insn->operands[0], insn->opcount, | |
4199 | insn->tm->operand_types, | |
4200 | insn->tm->minops, insn->tm->maxops)) | |
4201 | { | |
4202 | /* SUCCESS! now try some optimizations. */ | |
4203 | if (optimize_insn (insn)) | |
4204 | { | |
4205 | insn->tm = (template *) hash_find (op_hash, | |
1aea3bb8 | 4206 | insn->mnemonic); |
9a736b6b NC |
4207 | continue; |
4208 | } | |
39bec121 | 4209 | |
9a736b6b NC |
4210 | return 1; |
4211 | } | |
39bec121 TW |
4212 | ++(insn->tm); |
4213 | } | |
1aea3bb8 NC |
4214 | as_bad (_("Unrecognized operand list '%s' for instruction '%s'"), |
4215 | line, insn->mnemonic); | |
39bec121 TW |
4216 | return 0; |
4217 | } | |
4218 | ||
d0313fb7 NC |
4219 | /* We set this in start_line_hook, 'cause if we do a line replacement, we |
4220 | won't be able to see the next line. */ | |
39bec121 | 4221 | static int parallel_on_next_line_hint = 0; |
9a736b6b | 4222 | |
39bec121 | 4223 | /* See if this is part of a parallel instruction |
d0313fb7 | 4224 | Look for a subsequent line starting with "||". */ |
9a736b6b | 4225 | |
39bec121 | 4226 | static int |
5a49b8ac | 4227 | next_line_shows_parallel (char *next_line) |
39bec121 | 4228 | { |
9a736b6b | 4229 | /* Look for the second half. */ |
3882b010 | 4230 | while (ISSPACE (*next_line)) |
39bec121 TW |
4231 | ++next_line; |
4232 | ||
9a736b6b NC |
4233 | return (next_line[0] == PARALLEL_SEPARATOR |
4234 | && next_line[1] == PARALLEL_SEPARATOR); | |
39bec121 TW |
4235 | } |
4236 | ||
4237 | static int | |
5a49b8ac | 4238 | tic54x_parse_parallel_insn_firstline (tic54x_insn *insn, char *line) |
39bec121 | 4239 | { |
6e917903 TW |
4240 | insn->tm = (template *) hash_find (parop_hash, insn->mnemonic); |
4241 | if (!insn->tm) | |
39bec121 | 4242 | { |
1aea3bb8 | 4243 | as_bad (_("Unrecognized parallel instruction \"%s\""), |
9a736b6b | 4244 | insn->mnemonic); |
39bec121 TW |
4245 | return 0; |
4246 | } | |
4247 | ||
6e917903 TW |
4248 | while (insn->tm->name && strcasecmp (insn->tm->name, |
4249 | insn->mnemonic) == 0) | |
39bec121 TW |
4250 | { |
4251 | insn->opcount = get_operands (insn->operands, line); | |
4252 | if (insn->opcount < 0) | |
9a736b6b NC |
4253 | return 0; |
4254 | if (insn->opcount == 2 | |
4255 | && operands_match (insn, &insn->operands[0], insn->opcount, | |
6e917903 | 4256 | insn->tm->operand_types, 2, 2)) |
9a736b6b NC |
4257 | { |
4258 | return 1; | |
4259 | } | |
6e917903 | 4260 | ++(insn->tm); |
39bec121 | 4261 | } |
d0313fb7 | 4262 | /* Didn't find a matching parallel; try for a normal insn. */ |
39bec121 TW |
4263 | return 0; |
4264 | } | |
4265 | ||
d0313fb7 | 4266 | /* Parse the second line of a two-line parallel instruction. */ |
9a736b6b | 4267 | |
39bec121 | 4268 | static int |
5a49b8ac | 4269 | tic54x_parse_parallel_insn_lastline (tic54x_insn *insn, char *line) |
39bec121 TW |
4270 | { |
4271 | int valid_mnemonic = 0; | |
1aea3bb8 | 4272 | |
39bec121 | 4273 | insn->paropcount = get_operands (insn->paroperands, line); |
6e917903 | 4274 | while (insn->tm->name && strcasecmp (insn->tm->name, |
9a736b6b | 4275 | insn->mnemonic) == 0) |
39bec121 | 4276 | { |
6e917903 | 4277 | if (strcasecmp (insn->tm->parname, insn->parmnemonic) == 0) |
9a736b6b NC |
4278 | { |
4279 | valid_mnemonic = 1; | |
f1e7a2c9 | 4280 | |
6e917903 TW |
4281 | if (insn->paropcount >= insn->tm->minops |
4282 | && insn->paropcount <= insn->tm->maxops | |
9a736b6b NC |
4283 | && operands_match (insn, insn->paroperands, |
4284 | insn->paropcount, | |
6e917903 TW |
4285 | insn->tm->paroperand_types, |
4286 | insn->tm->minops, insn->tm->maxops)) | |
f1e7a2c9 | 4287 | return 1; |
9a736b6b | 4288 | } |
6e917903 | 4289 | ++(insn->tm); |
39bec121 TW |
4290 | } |
4291 | if (valid_mnemonic) | |
4292 | as_bad (_("Invalid operand (s) for parallel instruction \"%s\""), | |
9a736b6b | 4293 | insn->parmnemonic); |
39bec121 TW |
4294 | else |
4295 | as_bad (_("Unrecognized parallel instruction combination \"%s || %s\""), | |
9a736b6b | 4296 | insn->mnemonic, insn->parmnemonic); |
39bec121 TW |
4297 | |
4298 | return 0; | |
4299 | } | |
4300 | ||
d0313fb7 | 4301 | /* If quotes found, return copy of line up to closing quote; |
9a736b6b NC |
4302 | otherwise up until terminator. |
4303 | If it's a string, pass as-is; otherwise attempt substitution symbol | |
d0313fb7 | 4304 | replacement on the value. */ |
9a736b6b | 4305 | |
39bec121 | 4306 | static char * |
5a49b8ac | 4307 | subsym_get_arg (char *line, char *terminators, char **str, int nosub) |
39bec121 TW |
4308 | { |
4309 | char *ptr = line; | |
4310 | char *endp; | |
4311 | int is_string = *line == '"'; | |
3882b010 | 4312 | int is_char = ISDIGIT (*line); |
39bec121 TW |
4313 | |
4314 | if (is_char) | |
4315 | { | |
3882b010 | 4316 | while (ISDIGIT (*ptr)) |
9a736b6b | 4317 | ++ptr; |
39bec121 TW |
4318 | endp = ptr; |
4319 | *str = xmalloc (ptr - line + 1); | |
4320 | strncpy (*str, line, ptr - line); | |
4321 | (*str)[ptr - line] = 0; | |
4322 | } | |
4323 | else if (is_string) | |
4324 | { | |
4325 | char *savedp = input_line_pointer; | |
4326 | int len; | |
f1e7a2c9 | 4327 | |
39bec121 TW |
4328 | input_line_pointer = ptr; |
4329 | *str = demand_copy_C_string (&len); | |
4330 | endp = input_line_pointer; | |
4331 | input_line_pointer = savedp; | |
4332 | ||
d0313fb7 | 4333 | /* Do forced substitutions if requested. */ |
39bec121 | 4334 | if (!nosub && **str == ':') |
9a736b6b | 4335 | *str = subsym_substitute (*str, 1); |
39bec121 TW |
4336 | } |
4337 | else | |
4338 | { | |
4339 | char *term = terminators; | |
4340 | char *value = NULL; | |
4341 | ||
4342 | while (*ptr && *ptr != *term) | |
9a736b6b NC |
4343 | { |
4344 | if (!*term) | |
4345 | { | |
4346 | term = terminators; | |
4347 | ++ptr; | |
4348 | } | |
4349 | else | |
4350 | ++term; | |
4351 | } | |
39bec121 TW |
4352 | endp = ptr; |
4353 | *str = xmalloc (ptr - line + 1); | |
4354 | strncpy (*str, line, ptr - line); | |
4355 | (*str)[ptr - line] = 0; | |
d0313fb7 | 4356 | /* Do simple substitution, if available. */ |
39bec121 | 4357 | if (!nosub && (value = subsym_lookup (*str, macro_level)) != NULL) |
1aea3bb8 | 4358 | *str = value; |
39bec121 TW |
4359 | } |
4360 | ||
4361 | return endp; | |
4362 | } | |
4363 | ||
d0313fb7 | 4364 | /* Replace the given substitution string. |
39bec121 TW |
4365 | We start at the innermost macro level, so that existing locals remain local |
4366 | Note: we're treating macro args identically to .var's; I don't know if | |
d0313fb7 | 4367 | that's compatible w/TI's assembler. */ |
9a736b6b | 4368 | |
39bec121 | 4369 | static void |
5a49b8ac | 4370 | subsym_create_or_replace (char *name, char *value) |
39bec121 TW |
4371 | { |
4372 | int i; | |
4373 | ||
1aea3bb8 | 4374 | for (i = macro_level; i > 0; i--) |
39bec121 TW |
4375 | { |
4376 | if (hash_find (subsym_hash[i], name)) | |
9a736b6b NC |
4377 | { |
4378 | hash_replace (subsym_hash[i], name, value); | |
4379 | return; | |
4380 | } | |
39bec121 TW |
4381 | } |
4382 | if (hash_find (subsym_hash[0], name)) | |
4383 | hash_replace (subsym_hash[0], name, value); | |
4384 | else | |
4385 | hash_insert (subsym_hash[0], name, value); | |
4386 | } | |
4387 | ||
9a736b6b | 4388 | /* Look up the substitution string replacement for the given symbol. |
33b7f697 | 4389 | Start with the innermost macro substitution table given and work |
9a736b6b NC |
4390 | outwards. */ |
4391 | ||
39bec121 | 4392 | static char * |
5a49b8ac | 4393 | subsym_lookup (char *name, int nest_level) |
39bec121 TW |
4394 | { |
4395 | char *value = hash_find (subsym_hash[nest_level], name); | |
4396 | ||
4397 | if (value || nest_level == 0) | |
4398 | return value; | |
4399 | ||
1aea3bb8 | 4400 | return subsym_lookup (name, nest_level - 1); |
39bec121 TW |
4401 | } |
4402 | ||
d0313fb7 | 4403 | /* Do substitution-symbol replacement on the given line (recursively). |
1aea3bb8 | 4404 | return the argument if no substitution was done |
39bec121 TW |
4405 | |
4406 | Also look for built-in functions ($func (arg)) and local labels. | |
4407 | ||
d0313fb7 | 4408 | If FORCED is set, look for forced substitutions of the form ':SYMBOL:'. */ |
9a736b6b | 4409 | |
39bec121 | 4410 | static char * |
5a49b8ac | 4411 | subsym_substitute (char *line, int forced) |
39bec121 | 4412 | { |
d0313fb7 NC |
4413 | /* For each apparent symbol, see if it's a substitution symbol, and if so, |
4414 | replace it in the input. */ | |
9a736b6b NC |
4415 | char *replacement; /* current replacement for LINE. */ |
4416 | char *head; /* Start of line. */ | |
4417 | char *ptr; /* Current examination point. */ | |
4418 | int changed = 0; /* Did we make a substitution? */ | |
4419 | int eval_line = 0; /* Is this line a .eval/.asg statement? */ | |
4420 | int eval_symbol = 0; /* Are we in the middle of the symbol for | |
4421 | .eval/.asg? */ | |
39bec121 TW |
4422 | char *eval_end = NULL; |
4423 | int recurse = 1; | |
4424 | int line_conditional = 0; | |
4425 | char *tmp; | |
4426 | ||
d0313fb7 | 4427 | /* Work with a copy of the input line. */ |
39bec121 TW |
4428 | replacement = xmalloc (strlen (line) + 1); |
4429 | strcpy (replacement, line); | |
4430 | ||
4431 | ptr = head = replacement; | |
4432 | ||
d0313fb7 | 4433 | /* Flag lines where we might need to replace a single '=' with two; |
39bec121 | 4434 | GAS uses single '=' to assign macro args values, and possibly other |
d0313fb7 | 4435 | places, so limit what we replace. */ |
1aea3bb8 NC |
4436 | if (strstr (line, ".if") |
4437 | || strstr (line, ".elseif") | |
39bec121 | 4438 | || strstr (line, ".break")) |
f1e7a2c9 | 4439 | line_conditional = 1; |
39bec121 | 4440 | |
d0313fb7 NC |
4441 | /* Watch out for .eval, so that we avoid doing substitution on the |
4442 | symbol being assigned a value. */ | |
39bec121 | 4443 | if (strstr (line, ".eval") || strstr (line, ".asg")) |
1aea3bb8 | 4444 | eval_line = 1; |
39bec121 | 4445 | |
9a736b6b NC |
4446 | /* If it's a macro definition, don't do substitution on the argument |
4447 | names. */ | |
39bec121 TW |
4448 | if (strstr (line, ".macro")) |
4449 | return line; | |
4450 | ||
1aea3bb8 | 4451 | while (!is_end_of_line[(int) *ptr]) |
39bec121 TW |
4452 | { |
4453 | int current_char = *ptr; | |
4454 | ||
d0313fb7 | 4455 | /* Need to update this since LINE may have been modified. */ |
39bec121 | 4456 | if (eval_line) |
1aea3bb8 | 4457 | eval_end = strrchr (ptr, ','); |
39bec121 | 4458 | |
d0313fb7 | 4459 | /* Replace triple double quotes with bounding quote/escapes. */ |
39bec121 | 4460 | if (current_char == '"' && ptr[1] == '"' && ptr[2] == '"') |
9a736b6b NC |
4461 | { |
4462 | ptr[1] = '\\'; | |
4463 | tmp = strstr (ptr + 2, "\"\"\""); | |
4464 | if (tmp) | |
4465 | tmp[0] = '\\'; | |
4466 | changed = 1; | |
4467 | } | |
39bec121 | 4468 | |
d0313fb7 | 4469 | /* Replace a single '=' with a '=='; |
9a736b6b | 4470 | for compatibility with older code only. */ |
1aea3bb8 | 4471 | if (line_conditional && current_char == '=') |
9a736b6b NC |
4472 | { |
4473 | if (ptr[1] == '=') | |
4474 | { | |
4475 | ptr += 2; | |
4476 | continue; | |
4477 | } | |
4478 | *ptr++ = '\0'; | |
4479 | tmp = xmalloc (strlen (head) + 2 + strlen (ptr) + 1); | |
4480 | sprintf (tmp, "%s==%s", head, ptr); | |
4481 | /* Continue examining after the '=='. */ | |
4482 | ptr = tmp + strlen (head) + 2; | |
4483 | free (replacement); | |
4484 | head = replacement = tmp; | |
4485 | changed = 1; | |
4486 | } | |
39bec121 | 4487 | |
d0313fb7 | 4488 | /* Flag when we've reached the symbol part of .eval/.asg. */ |
39bec121 | 4489 | if (eval_line && ptr >= eval_end) |
9a736b6b | 4490 | eval_symbol = 1; |
39bec121 | 4491 | |
d0313fb7 | 4492 | /* For each apparent symbol, see if it's a substitution symbol, and if |
9a736b6b | 4493 | so, replace it in the input. */ |
39bec121 | 4494 | if ((forced && current_char == ':') |
9a736b6b NC |
4495 | || (!forced && is_name_beginner (current_char))) |
4496 | { | |
4497 | char *name; /* Symbol to be replaced. */ | |
4498 | char *savedp = input_line_pointer; | |
4499 | int c; | |
4500 | char *value = NULL; | |
4501 | char *tail; /* Rest of line after symbol. */ | |
4502 | ||
4503 | /* Skip the colon. */ | |
4504 | if (forced) | |
4505 | ++ptr; | |
4506 | ||
4507 | name = input_line_pointer = ptr; | |
4508 | c = get_symbol_end (); | |
4509 | /* '?' is not normally part of a symbol, but it IS part of a local | |
4510 | label. */ | |
4511 | if (c == '?') | |
4512 | { | |
4513 | *input_line_pointer++ = c; | |
4514 | c = *input_line_pointer; | |
4515 | *input_line_pointer = '\0'; | |
4516 | } | |
4517 | /* Avoid infinite recursion; if a symbol shows up a second time for | |
4518 | substitution, leave it as is. */ | |
4519 | if (hash_find (subsym_recurse_hash, name) == NULL) | |
4520 | value = subsym_lookup (name, macro_level); | |
4521 | else | |
4522 | as_warn (_("%s symbol recursion stopped at " | |
4523 | "second appearance of '%s'"), | |
4524 | forced ? "Forced substitution" : "Substitution", name); | |
4525 | ptr = tail = input_line_pointer; | |
4526 | input_line_pointer = savedp; | |
4527 | ||
4528 | /* Check for local labels; replace them with the appropriate | |
4529 | substitution. */ | |
3882b010 | 4530 | if ((*name == '$' && ISDIGIT (name[1]) && name[2] == '\0') |
9a736b6b NC |
4531 | || name[strlen (name) - 1] == '?') |
4532 | { | |
4533 | /* Use an existing identifier for that label if, available, or | |
4534 | create a new, unique identifier. */ | |
4535 | value = hash_find (local_label_hash[macro_level], name); | |
4536 | if (value == NULL) | |
4537 | { | |
4538 | char digit[11]; | |
4539 | char *namecopy = strcpy (xmalloc (strlen (name) + 1), name); | |
f1e7a2c9 | 4540 | |
9a736b6b NC |
4541 | value = strcpy (xmalloc (strlen (name) + sizeof (digit) + 1), |
4542 | name); | |
4543 | if (*value != '$') | |
4544 | value[strlen (value) - 1] = '\0'; | |
4545 | sprintf (digit, ".%d", local_label_id++); | |
4546 | strcat (value, digit); | |
4547 | hash_insert (local_label_hash[macro_level], namecopy, value); | |
4548 | } | |
4549 | /* Indicate where to continue looking for substitutions. */ | |
4550 | ptr = tail; | |
4551 | } | |
4552 | /* Check for built-in subsym and math functions. */ | |
4553 | else if (value != NULL && *name == '$') | |
4554 | { | |
4555 | subsym_proc_entry *entry = (subsym_proc_entry *) value; | |
4556 | math_proc_entry *math_entry = hash_find (math_hash, name); | |
4557 | char *arg1, *arg2 = NULL; | |
4558 | ||
4559 | *ptr = c; | |
4560 | if (entry == NULL) | |
4561 | { | |
4562 | as_bad (_("Unrecognized substitution symbol function")); | |
4563 | break; | |
4564 | } | |
4565 | else if (*ptr != '(') | |
4566 | { | |
4567 | as_bad (_("Missing '(' after substitution symbol function")); | |
4568 | break; | |
4569 | } | |
4570 | ++ptr; | |
4571 | if (math_entry != NULL) | |
4572 | { | |
4573 | float arg1, arg2 = 0; | |
4574 | volatile float fresult; | |
4575 | ||
4576 | arg1 = (float) strtod (ptr, &ptr); | |
4577 | if (math_entry->nargs == 2) | |
4578 | { | |
4579 | if (*ptr++ != ',') | |
4580 | { | |
4581 | as_bad (_("Expecting second argument")); | |
4582 | break; | |
4583 | } | |
4584 | arg2 = (float) strtod (ptr, &ptr); | |
4585 | } | |
4586 | fresult = (*math_entry->proc) (arg1, arg2); | |
4587 | value = xmalloc (128); | |
4588 | if (math_entry->int_return) | |
4589 | sprintf (value, "%d", (int) fresult); | |
4590 | else | |
4591 | sprintf (value, "%f", fresult); | |
4592 | if (*ptr++ != ')') | |
4593 | { | |
4594 | as_bad (_("Extra junk in function call, expecting ')'")); | |
4595 | break; | |
4596 | } | |
4597 | /* Don't bother recursing; the replacement isn't a | |
4598 | symbol. */ | |
4599 | recurse = 0; | |
4600 | } | |
4601 | else | |
4602 | { | |
4603 | int val; | |
4604 | int arg_type[2] = { *ptr == '"' , 0 }; | |
4605 | int ismember = !strcmp (entry->name, "$ismember"); | |
f1e7a2c9 | 4606 | |
9a736b6b NC |
4607 | /* Parse one or two args, which must be a substitution |
4608 | symbol, string or a character-string constant. */ | |
4609 | /* For all functions, a string or substitution symbol may be | |
4610 | used, with the following exceptions: | |
4611 | firstch/lastch: 2nd arg must be character constant | |
4612 | ismember: both args must be substitution symbols. */ | |
4613 | ptr = subsym_get_arg (ptr, ",)", &arg1, ismember); | |
4614 | if (!arg1) | |
4615 | break; | |
4616 | if (entry->nargs == 2) | |
4617 | { | |
4618 | if (*ptr++ != ',') | |
4619 | { | |
4620 | as_bad (_("Function expects two arguments")); | |
4621 | break; | |
4622 | } | |
4623 | /* Character constants are converted to numerics | |
4624 | by the preprocessor. */ | |
3882b010 | 4625 | arg_type[1] = (ISDIGIT (*ptr)) ? 2 : (*ptr == '"'); |
9a736b6b NC |
4626 | ptr = subsym_get_arg (ptr, ")", &arg2, ismember); |
4627 | } | |
4628 | /* Args checking. */ | |
4629 | if ((!strcmp (entry->name, "$firstch") | |
4630 | || !strcmp (entry->name, "$lastch")) | |
4631 | && arg_type[1] != 2) | |
4632 | { | |
4633 | as_bad (_("Expecting character constant argument")); | |
4634 | break; | |
4635 | } | |
4636 | if (ismember | |
4637 | && (arg_type[0] != 0 || arg_type[1] != 0)) | |
4638 | { | |
4639 | as_bad (_("Both arguments must be substitution symbols")); | |
4640 | break; | |
4641 | } | |
4642 | if (*ptr++ != ')') | |
4643 | { | |
4644 | as_bad (_("Extra junk in function call, expecting ')'")); | |
4645 | break; | |
4646 | } | |
4647 | val = (*entry->proc) (arg1, arg2); | |
4648 | value = xmalloc (64); | |
4649 | sprintf (value, "%d", val); | |
4650 | } | |
4651 | /* Fix things up to replace the entire expression, not just the | |
4652 | function name. */ | |
4653 | tail = ptr; | |
4654 | c = *tail; | |
4655 | } | |
4656 | ||
4657 | if (value != NULL && !eval_symbol) | |
4658 | { | |
4659 | /* Replace the symbol with its string replacement and | |
4660 | continue. Recursively replace VALUE until either no | |
4661 | substitutions are performed, or a substitution that has been | |
4662 | previously made is encountered again. | |
4663 | ||
4664 | put the symbol into the recursion hash table so we only | |
4665 | try to replace a symbol once. */ | |
4666 | if (recurse) | |
4667 | { | |
4668 | hash_insert (subsym_recurse_hash, name, name); | |
4669 | value = subsym_substitute (value, macro_level > 0); | |
818236e5 | 4670 | hash_delete (subsym_recurse_hash, name, FALSE); |
9a736b6b NC |
4671 | } |
4672 | ||
4673 | /* Temporarily zero-terminate where the symbol started. */ | |
4674 | *name = 0; | |
4675 | if (forced) | |
4676 | { | |
4677 | if (c == '(') | |
4678 | { | |
4679 | /* Subscripted substitution symbol -- use just the | |
4680 | indicated portion of the string; the description | |
33b7f697 | 4681 | kinda indicates that forced substitution is not |
9a736b6b NC |
4682 | supposed to be recursive, but I'm not sure. */ |
4683 | unsigned beg, len = 1; /* default to a single char */ | |
4684 | char *newval = strcpy (xmalloc (strlen (value) + 1), | |
4685 | value); | |
4686 | ||
4687 | savedp = input_line_pointer; | |
4688 | input_line_pointer = tail + 1; | |
4689 | beg = get_absolute_expression (); | |
4690 | if (beg < 1) | |
4691 | { | |
4692 | as_bad (_("Invalid subscript (use 1 to %d)"), | |
8ad7c533 | 4693 | (int) strlen (value)); |
9a736b6b NC |
4694 | break; |
4695 | } | |
4696 | if (*input_line_pointer == ',') | |
4697 | { | |
4698 | ++input_line_pointer; | |
4699 | len = get_absolute_expression (); | |
4700 | if (beg + len > strlen (value)) | |
4701 | { | |
4702 | as_bad (_("Invalid length (use 0 to %d"), | |
8ad7c533 | 4703 | (int) strlen (value) - beg); |
9a736b6b NC |
4704 | break; |
4705 | } | |
4706 | } | |
4707 | newval += beg - 1; | |
4708 | newval[len] = 0; | |
4709 | tail = input_line_pointer; | |
4710 | if (*tail++ != ')') | |
4711 | { | |
4712 | as_bad (_("Missing ')' in subscripted substitution " | |
4713 | "symbol expression")); | |
4714 | break; | |
4715 | } | |
4716 | c = *tail; | |
4717 | input_line_pointer = savedp; | |
4718 | ||
4719 | value = newval; | |
4720 | } | |
4721 | name[-1] = 0; | |
4722 | } | |
4723 | tmp = xmalloc (strlen (head) + strlen (value) + | |
4724 | strlen (tail + 1) + 2); | |
4725 | strcpy (tmp, head); | |
4726 | strcat (tmp, value); | |
4727 | /* Make sure forced substitutions are properly terminated. */ | |
4728 | if (forced) | |
4729 | { | |
4730 | if (c != ':') | |
4731 | { | |
4732 | as_bad (_("Missing forced substitution terminator ':'")); | |
4733 | break; | |
4734 | } | |
4735 | ++tail; | |
9a736b6b NC |
4736 | } |
4737 | else | |
4738 | /* Restore the character after the symbol end. */ | |
4739 | *tail = c; | |
4740 | strcat (tmp, tail); | |
4741 | /* Continue examining after the replacement value. */ | |
4742 | ptr = tmp + strlen (head) + strlen (value); | |
4743 | free (replacement); | |
4744 | head = replacement = tmp; | |
4745 | changed = 1; | |
4746 | } | |
4747 | else | |
4748 | *ptr = c; | |
4749 | } | |
39bec121 | 4750 | else |
9a736b6b NC |
4751 | { |
4752 | ++ptr; | |
4753 | } | |
39bec121 TW |
4754 | } |
4755 | ||
4756 | if (changed) | |
4757 | return replacement; | |
4758 | else | |
4759 | return line; | |
4760 | } | |
4761 | ||
1aea3bb8 | 4762 | /* We use this to handle substitution symbols |
39bec121 TW |
4763 | hijack input_line_pointer, replacing it with our substituted string. |
4764 | ||
4765 | .sslist should enable listing the line after replacements are made... | |
4766 | ||
d0313fb7 | 4767 | returns the new buffer limit. */ |
9a736b6b | 4768 | |
39bec121 | 4769 | void |
5a49b8ac | 4770 | tic54x_start_line_hook (void) |
39bec121 TW |
4771 | { |
4772 | char *line, *endp; | |
4773 | char *replacement = NULL; | |
4774 | ||
d0313fb7 | 4775 | /* Work with a copy of the input line, including EOL char. */ |
39bec121 | 4776 | endp = input_line_pointer; |
1aea3bb8 | 4777 | while (!is_end_of_line[(int) *endp++]) |
39bec121 TW |
4778 | ; |
4779 | line = xmalloc (endp - input_line_pointer + 1); | |
4780 | strncpy (line, input_line_pointer, endp - input_line_pointer + 1); | |
4781 | line[endp - input_line_pointer] = 0; | |
4782 | ||
d0313fb7 | 4783 | /* Scan ahead for parallel insns. */ |
39bec121 TW |
4784 | parallel_on_next_line_hint = next_line_shows_parallel (endp + 1); |
4785 | ||
d0313fb7 | 4786 | /* If within a macro, first process forced replacements. */ |
39bec121 TW |
4787 | if (macro_level > 0) |
4788 | replacement = subsym_substitute (line, 1); | |
4789 | else | |
4790 | replacement = line; | |
4791 | replacement = subsym_substitute (replacement, 0); | |
4792 | ||
4793 | if (replacement != line) | |
4794 | { | |
4795 | char *tmp = replacement; | |
9a736b6b | 4796 | char *comment = strchr (replacement, ';'); |
1aea3bb8 | 4797 | char endc = replacement[strlen (replacement) - 1]; |
39bec121 | 4798 | |
d0313fb7 | 4799 | /* Clean up the replacement; we'd prefer to have this done by the |
9a736b6b NC |
4800 | standard preprocessing equipment (maybe do_scrub_chars?) |
4801 | but for now, do a quick-and-dirty. */ | |
39bec121 | 4802 | if (comment != NULL) |
9a736b6b NC |
4803 | { |
4804 | comment[0] = endc; | |
4805 | comment[1] = 0; | |
4806 | --comment; | |
4807 | } | |
1aea3bb8 | 4808 | else |
9a736b6b | 4809 | comment = replacement + strlen (replacement) - 1; |
39bec121 | 4810 | |
d0313fb7 | 4811 | /* Trim trailing whitespace. */ |
3882b010 | 4812 | while (ISSPACE (*comment)) |
9a736b6b NC |
4813 | { |
4814 | comment[0] = endc; | |
4815 | comment[1] = 0; | |
4816 | --comment; | |
4817 | } | |
39bec121 | 4818 | |
d0313fb7 | 4819 | /* Compact leading whitespace. */ |
3882b010 | 4820 | while (ISSPACE (tmp[0]) && ISSPACE (tmp[1])) |
9a736b6b | 4821 | ++tmp; |
39bec121 TW |
4822 | |
4823 | input_line_pointer = endp; | |
4824 | input_scrub_insert_line (tmp); | |
4825 | free (replacement); | |
4826 | free (line); | |
d0313fb7 | 4827 | /* Keep track of whether we've done a substitution. */ |
39bec121 TW |
4828 | substitution_line = 1; |
4829 | } | |
4830 | else | |
4831 | { | |
d0313fb7 | 4832 | /* No change. */ |
39bec121 TW |
4833 | free (line); |
4834 | substitution_line = 0; | |
4835 | } | |
4836 | } | |
4837 | ||
4838 | /* This is the guts of the machine-dependent assembler. STR points to a | |
4839 | machine dependent instruction. This function is supposed to emit | |
d0313fb7 | 4840 | the frags/bytes it assembles to. */ |
39bec121 | 4841 | void |
5a49b8ac | 4842 | md_assemble (char *line) |
39bec121 TW |
4843 | { |
4844 | static int repeat_slot = 0; | |
9a736b6b | 4845 | static int delay_slots = 0; /* How many delay slots left to fill? */ |
39bec121 TW |
4846 | static int is_parallel = 0; |
4847 | static tic54x_insn insn; | |
4848 | char *lptr; | |
4849 | char *savedp = input_line_pointer; | |
4850 | int c; | |
4851 | ||
4852 | input_line_pointer = line; | |
4853 | c = get_symbol_end (); | |
4854 | ||
4855 | if (cpu == VNONE) | |
4856 | cpu = V542; | |
4857 | if (address_mode_needs_set) | |
4858 | { | |
4859 | set_address_mode (amode); | |
4860 | address_mode_needs_set = 0; | |
4861 | } | |
4862 | if (cpu_needs_set) | |
4863 | { | |
4864 | set_cpu (cpu); | |
4865 | cpu_needs_set = 0; | |
4866 | } | |
4867 | assembly_begun = 1; | |
4868 | ||
4869 | if (is_parallel) | |
4870 | { | |
4871 | is_parallel = 0; | |
4872 | ||
4873 | strcpy (insn.parmnemonic, line); | |
4874 | lptr = input_line_pointer; | |
4875 | *lptr = c; | |
4876 | input_line_pointer = savedp; | |
4877 | ||
4878 | if (tic54x_parse_parallel_insn_lastline (&insn, lptr)) | |
9a736b6b NC |
4879 | { |
4880 | int words = build_insn (&insn); | |
4881 | ||
4882 | if (delay_slots != 0) | |
4883 | { | |
4884 | if (words > delay_slots) | |
4885 | { | |
4886 | as_bad (_("Instruction does not fit in available delay " | |
4887 | "slots (%d-word insn, %d slots left)"), | |
1aea3bb8 | 4888 | words, delay_slots); |
9a736b6b NC |
4889 | delay_slots = 0; |
4890 | return; | |
4891 | } | |
4892 | delay_slots -= words; | |
4893 | } | |
4894 | } | |
39bec121 TW |
4895 | return; |
4896 | } | |
4897 | ||
4898 | memset (&insn, 0, sizeof (insn)); | |
4899 | strcpy (insn.mnemonic, line); | |
4900 | lptr = input_line_pointer; | |
4901 | *lptr = c; | |
4902 | input_line_pointer = savedp; | |
1aea3bb8 | 4903 | |
39bec121 TW |
4904 | /* See if this line is part of a parallel instruction; if so, either this |
4905 | line or the next line will have the "||" specifier preceding the | |
d0313fb7 | 4906 | mnemonic, and we look for it in the parallel insn hash table. */ |
39bec121 TW |
4907 | if (strstr (line, "||") != NULL || parallel_on_next_line_hint) |
4908 | { | |
4909 | char *tmp = strstr (line, "||"); | |
4910 | if (tmp != NULL) | |
9a736b6b | 4911 | *tmp = '\0'; |
39bec121 TW |
4912 | |
4913 | if (tic54x_parse_parallel_insn_firstline (&insn, lptr)) | |
9a736b6b NC |
4914 | { |
4915 | is_parallel = 1; | |
4916 | /* If the parallel part is on the same line, process it now, | |
4917 | otherwise let the assembler pick up the next line for us. */ | |
4918 | if (tmp != NULL) | |
4919 | { | |
3882b010 | 4920 | while (ISSPACE (tmp[2])) |
9a736b6b NC |
4921 | ++tmp; |
4922 | md_assemble (tmp + 2); | |
4923 | } | |
4924 | } | |
39bec121 | 4925 | else |
9a736b6b NC |
4926 | { |
4927 | as_bad (_("Unrecognized parallel instruction '%s'"), line); | |
4928 | } | |
39bec121 TW |
4929 | return; |
4930 | } | |
4931 | ||
4932 | if (tic54x_parse_insn (&insn, lptr)) | |
4933 | { | |
4934 | int words; | |
4935 | ||
1aea3bb8 | 4936 | if ((insn.tm->flags & FL_LP) |
9a736b6b NC |
4937 | && cpu != V545LP && cpu != V546LP) |
4938 | { | |
4939 | as_bad (_("Instruction '%s' requires an LP cpu version"), | |
4940 | insn.tm->name); | |
4941 | return; | |
4942 | } | |
1aea3bb8 | 4943 | if ((insn.tm->flags & FL_FAR) |
9a736b6b NC |
4944 | && amode != far_mode) |
4945 | { | |
4946 | as_bad (_("Instruction '%s' requires far mode addressing"), | |
4947 | insn.tm->name); | |
4948 | return; | |
4949 | } | |
39bec121 TW |
4950 | |
4951 | words = build_insn (&insn); | |
4952 | ||
d0313fb7 | 4953 | /* Is this instruction in a delay slot? */ |
39bec121 | 4954 | if (delay_slots) |
9a736b6b NC |
4955 | { |
4956 | if (words > delay_slots) | |
4957 | { | |
4958 | as_warn (_("Instruction does not fit in available delay " | |
4959 | "slots (%d-word insn, %d slots left). " | |
4960 | "Resulting behavior is undefined."), | |
4961 | words, delay_slots); | |
4962 | delay_slots = 0; | |
4963 | return; | |
4964 | } | |
4965 | /* Branches in delay slots are not allowed. */ | |
4966 | if (insn.tm->flags & FL_BMASK) | |
4967 | { | |
4968 | as_warn (_("Instructions which cause PC discontinuity are not " | |
4969 | "allowed in a delay slot. " | |
4970 | "Resulting behavior is undefined.")); | |
4971 | } | |
4972 | delay_slots -= words; | |
4973 | } | |
4974 | ||
4975 | /* Is this instruction the target of a repeat? */ | |
39bec121 | 4976 | if (repeat_slot) |
9a736b6b NC |
4977 | { |
4978 | if (insn.tm->flags & FL_NR) | |
4979 | as_warn (_("'%s' is not repeatable. " | |
4980 | "Resulting behavior is undefined."), | |
4981 | insn.tm->name); | |
4982 | else if (insn.is_lkaddr) | |
4983 | as_warn (_("Instructions using long offset modifiers or absolute " | |
4984 | "addresses are not repeatable. " | |
4985 | "Resulting behavior is undefined.")); | |
4986 | repeat_slot = 0; | |
4987 | } | |
1aea3bb8 | 4988 | |
d0313fb7 | 4989 | /* Make sure we check the target of a repeat instruction. */ |
39bec121 | 4990 | if (insn.tm->flags & B_REPEAT) |
9a736b6b NC |
4991 | { |
4992 | repeat_slot = 1; | |
4993 | /* FIXME -- warn if repeat_slot == 1 at EOF. */ | |
4994 | } | |
d0313fb7 | 4995 | /* Make sure we check our delay slots for validity. */ |
39bec121 | 4996 | if (insn.tm->flags & FL_DELAY) |
9a736b6b NC |
4997 | { |
4998 | delay_slots = 2; | |
4999 | /* FIXME -- warn if delay_slots != 0 at EOF. */ | |
5000 | } | |
39bec121 TW |
5001 | } |
5002 | } | |
5003 | ||
5004 | /* Do a final adjustment on the symbol table; in this case, make sure we have | |
d0313fb7 | 5005 | a ".file" symbol. */ |
9a736b6b | 5006 | |
39bec121 | 5007 | void |
5a49b8ac | 5008 | tic54x_adjust_symtab (void) |
39bec121 TW |
5009 | { |
5010 | if (symbol_rootP == NULL | |
5011 | || S_GET_STORAGE_CLASS (symbol_rootP) != C_FILE) | |
5012 | { | |
5013 | char *filename; | |
5014 | unsigned lineno; | |
5015 | as_where (&filename, &lineno); | |
5519f6ea | 5016 | c_dot_file_symbol (filename, 0); |
39bec121 TW |
5017 | } |
5018 | } | |
5019 | ||
5020 | /* In order to get gas to ignore any | chars at the start of a line, | |
1aea3bb8 | 5021 | this function returns true if a | is found in a line. |
9a736b6b NC |
5022 | This lets us process parallel instructions, which span two lines. */ |
5023 | ||
39bec121 TW |
5024 | int |
5025 | tic54x_unrecognized_line (int c) | |
5026 | { | |
5027 | return c == PARALLEL_SEPARATOR; | |
5028 | } | |
5029 | ||
5030 | /* Watch for local labels of the form $[0-9] and [_a-zA-Z][_a-zA-Z0-9]*? | |
5031 | Encode their names so that only we see them and can map them to the | |
5032 | appropriate places. | |
5033 | FIXME -- obviously this isn't done yet. These locals still show up in the | |
d0313fb7 | 5034 | symbol table. */ |
39bec121 | 5035 | void |
5a49b8ac | 5036 | tic54x_define_label (symbolS *sym) |
39bec121 | 5037 | { |
d0313fb7 | 5038 | /* Just in case we need this later; note that this is not necessarily the |
1aea3bb8 | 5039 | same thing as line_label... |
39bec121 TW |
5040 | When aligning or assigning labels to fields, sometimes the label is |
5041 | assigned other than the address at which the label appears. | |
5042 | FIXME -- is this really needed? I think all the proper label assignment | |
d0313fb7 | 5043 | is done in tic54x_cons. */ |
39bec121 TW |
5044 | last_label_seen = sym; |
5045 | } | |
5046 | ||
d0313fb7 | 5047 | /* Try to parse something that normal parsing failed at. */ |
9a736b6b | 5048 | |
39bec121 | 5049 | symbolS * |
5a49b8ac | 5050 | tic54x_undefined_symbol (char *name) |
39bec121 TW |
5051 | { |
5052 | symbol *sym; | |
5053 | ||
d0313fb7 | 5054 | /* Not sure how to handle predefined symbols. */ |
1aea3bb8 NC |
5055 | if ((sym = (symbol *) hash_find (cc_hash, name)) != NULL || |
5056 | (sym = (symbol *) hash_find (cc2_hash, name)) != NULL || | |
5057 | (sym = (symbol *) hash_find (cc3_hash, name)) != NULL || | |
5058 | (sym = (symbol *) hash_find (misc_symbol_hash, name)) != NULL || | |
5059 | (sym = (symbol *) hash_find (sbit_hash, name)) != NULL) | |
39bec121 | 5060 | { |
1aea3bb8 | 5061 | return symbol_new (name, reg_section, |
9a736b6b NC |
5062 | (valueT) sym->value, |
5063 | &zero_address_frag); | |
39bec121 TW |
5064 | } |
5065 | ||
1aea3bb8 NC |
5066 | if ((sym = (symbol *) hash_find (reg_hash, name)) != NULL || |
5067 | (sym = (symbol *) hash_find (mmreg_hash, name)) != NULL || | |
39bec121 TW |
5068 | !strcasecmp (name, "a") || !strcasecmp (name, "b")) |
5069 | { | |
1aea3bb8 | 5070 | return symbol_new (name, reg_section, |
9a736b6b NC |
5071 | (valueT) sym ? sym->value : 0, |
5072 | &zero_address_frag); | |
39bec121 TW |
5073 | } |
5074 | ||
5075 | return NULL; | |
5076 | } | |
5077 | ||
d0313fb7 NC |
5078 | /* Parse a name in an expression before the expression parser takes a stab at |
5079 | it. */ | |
9a736b6b | 5080 | |
39bec121 | 5081 | int |
5a49b8ac AM |
5082 | tic54x_parse_name (char *name ATTRIBUTE_UNUSED, |
5083 | expressionS *exp ATTRIBUTE_UNUSED) | |
39bec121 | 5084 | { |
39bec121 TW |
5085 | return 0; |
5086 | } | |
5087 | ||
5088 | char * | |
499ac353 NC |
5089 | md_atof (int type, char *literalP, int *sizeP) |
5090 | { | |
1aea3bb8 NC |
5091 | /* Target data is little-endian, but floats are stored |
5092 | big-"word"ian. ugh. */ | |
499ac353 | 5093 | return ieee_md_atof (type, literalP, sizeP, TRUE); |
39bec121 TW |
5094 | } |
5095 | ||
5096 | arelent * | |
5a49b8ac | 5097 | tc_gen_reloc (asection *section, fixS *fixP) |
39bec121 TW |
5098 | { |
5099 | arelent *rel; | |
5100 | bfd_reloc_code_real_type code = fixP->fx_r_type; | |
5101 | asymbol *sym = symbol_get_bfdsym (fixP->fx_addsy); | |
5102 | ||
5103 | rel = (arelent *) xmalloc (sizeof (arelent)); | |
1aea3bb8 | 5104 | rel->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); |
39bec121 | 5105 | *rel->sym_ptr_ptr = sym; |
9a736b6b | 5106 | /* We assume that all rel->address are host byte offsets. */ |
39bec121 TW |
5107 | rel->address = fixP->fx_frag->fr_address + fixP->fx_where; |
5108 | rel->address /= OCTETS_PER_BYTE; | |
5109 | rel->howto = bfd_reloc_type_lookup (stdoutput, code); | |
5110 | if (!strcmp (sym->name, section->name)) | |
5111 | rel->howto += HOWTO_BANK; | |
5112 | ||
5113 | if (!rel->howto) | |
5114 | { | |
5115 | const char *name = S_GET_NAME (fixP->fx_addsy); | |
5116 | if (name == NULL) | |
5117 | name = "<unknown>"; | |
1aea3bb8 | 5118 | as_fatal ("Cannot generate relocation type for symbol %s, code %s", |
9a736b6b | 5119 | name, bfd_get_reloc_code_name (code)); |
39bec121 TW |
5120 | return NULL; |
5121 | } | |
5122 | return rel; | |
5123 | } | |
5124 | ||
d0313fb7 | 5125 | /* Handle cons expressions. */ |
9a736b6b | 5126 | |
39bec121 | 5127 | void |
5a49b8ac | 5128 | tic54x_cons_fix_new (fragS *frag, int where, int octets, expressionS *exp) |
39bec121 TW |
5129 | { |
5130 | bfd_reloc_code_real_type r; | |
f1e7a2c9 | 5131 | |
39bec121 TW |
5132 | switch (octets) |
5133 | { | |
5134 | default: | |
5135 | as_bad (_("Unsupported relocation size %d"), octets); | |
5136 | r = BFD_RELOC_TIC54X_16_OF_23; | |
5137 | break; | |
5138 | case 2: | |
5139 | r = BFD_RELOC_TIC54X_16_OF_23; | |
5140 | break; | |
5141 | case 4: | |
d0313fb7 | 5142 | /* TI assembler always uses this, regardless of addressing mode. */ |
39bec121 | 5143 | if (emitting_long) |
9a736b6b | 5144 | r = BFD_RELOC_TIC54X_23; |
39bec121 | 5145 | else |
9a736b6b NC |
5146 | /* We never want to directly generate this; this is provided for |
5147 | stabs support only. */ | |
5148 | r = BFD_RELOC_32; | |
39bec121 TW |
5149 | break; |
5150 | } | |
5151 | fix_new_exp (frag, where, octets, exp, 0, r); | |
5152 | } | |
5153 | ||
1aea3bb8 | 5154 | /* Attempt to simplify or even eliminate a fixup. |
39bec121 TW |
5155 | To indicate that a fixup has been eliminated, set fixP->fx_done. |
5156 | ||
d0313fb7 | 5157 | If fixp->fx_addsy is non-NULL, we'll have to generate a reloc entry. */ |
9a736b6b | 5158 | |
94f592af | 5159 | void |
5a49b8ac | 5160 | md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED) |
39bec121 TW |
5161 | { |
5162 | char *buf = fixP->fx_where + fixP->fx_frag->fr_literal; | |
94f592af | 5163 | valueT val = * valP; |
39bec121 TW |
5164 | |
5165 | switch (fixP->fx_r_type) | |
5166 | { | |
5167 | default: | |
5168 | as_fatal ("Bad relocation type: 0x%02x", fixP->fx_r_type); | |
94f592af | 5169 | return; |
39bec121 TW |
5170 | case BFD_RELOC_TIC54X_MS7_OF_23: |
5171 | val = (val >> 16) & 0x7F; | |
d0313fb7 | 5172 | /* Fall through. */ |
39bec121 TW |
5173 | case BFD_RELOC_TIC54X_16_OF_23: |
5174 | case BFD_RELOC_16: | |
5175 | bfd_put_16 (stdoutput, val, buf); | |
d0313fb7 | 5176 | /* Indicate what we're actually writing, so that we don't get warnings |
9a736b6b | 5177 | about exceeding available space. */ |
39bec121 TW |
5178 | *valP = val & 0xFFFF; |
5179 | break; | |
5180 | case BFD_RELOC_TIC54X_PARTLS7: | |
5181 | bfd_put_16 (stdoutput, | |
9a736b6b NC |
5182 | (bfd_get_16 (stdoutput, buf) & 0xFF80) | (val & 0x7F), |
5183 | buf); | |
d0313fb7 | 5184 | /* Indicate what we're actually writing, so that we don't get warnings |
9a736b6b | 5185 | about exceeding available space. */ |
39bec121 TW |
5186 | *valP = val & 0x7F; |
5187 | break; | |
5188 | case BFD_RELOC_TIC54X_PARTMS9: | |
5189 | /* TI assembler doesn't shift its encoding for relocatable files, and is | |
9a736b6b | 5190 | thus incompatible with this implementation's relocatable files. */ |
1aea3bb8 | 5191 | bfd_put_16 (stdoutput, |
9a736b6b NC |
5192 | (bfd_get_16 (stdoutput, buf) & 0xFE00) | (val >> 7), |
5193 | buf); | |
39bec121 TW |
5194 | break; |
5195 | case BFD_RELOC_32: | |
5196 | case BFD_RELOC_TIC54X_23: | |
5197 | bfd_put_32 (stdoutput, | |
9a736b6b NC |
5198 | (bfd_get_32 (stdoutput, buf) & 0xFF800000) | val, |
5199 | buf); | |
39bec121 TW |
5200 | break; |
5201 | } | |
5202 | ||
94f592af NC |
5203 | if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0) |
5204 | fixP->fx_done = 1; | |
39bec121 TW |
5205 | } |
5206 | ||
1aea3bb8 | 5207 | /* This is our chance to record section alignment |
d0313fb7 | 5208 | don't need to do anything here, since BFD does the proper encoding. */ |
9a736b6b | 5209 | |
39bec121 | 5210 | valueT |
5a49b8ac | 5211 | md_section_align (segT segment ATTRIBUTE_UNUSED, valueT section_size) |
39bec121 TW |
5212 | { |
5213 | return section_size; | |
5214 | } | |
5215 | ||
5216 | long | |
5a49b8ac | 5217 | md_pcrel_from (fixS *fixP ATTRIBUTE_UNUSED) |
39bec121 TW |
5218 | { |
5219 | return 0; | |
5220 | } | |
5221 | ||
9a736b6b NC |
5222 | /* Mostly little-endian, but longwords (4 octets) get MS word stored |
5223 | first. */ | |
39bec121 | 5224 | |
39bec121 | 5225 | void |
5a49b8ac | 5226 | tic54x_number_to_chars (char *buf, valueT val, int n) |
39bec121 TW |
5227 | { |
5228 | if (n != 4) | |
9a736b6b | 5229 | number_to_chars_littleendian (buf, val, n); |
39bec121 TW |
5230 | else |
5231 | { | |
1aea3bb8 NC |
5232 | number_to_chars_littleendian (buf , val >> 16 , 2); |
5233 | number_to_chars_littleendian (buf + 2, val & 0xFFFF, 2); | |
39bec121 TW |
5234 | } |
5235 | } | |
5236 | ||
1aea3bb8 | 5237 | int |
5a49b8ac AM |
5238 | tic54x_estimate_size_before_relax (fragS *frag ATTRIBUTE_UNUSED, |
5239 | segT seg ATTRIBUTE_UNUSED) | |
39bec121 TW |
5240 | { |
5241 | return 0; | |
5242 | } | |
5243 | ||
d0313fb7 NC |
5244 | /* We use this to handle bit allocations which we couldn't handle before due |
5245 | to symbols being in different frags. return number of octets added. */ | |
9a736b6b | 5246 | |
1aea3bb8 | 5247 | int |
5a49b8ac | 5248 | tic54x_relax_frag (fragS *frag, long stretch ATTRIBUTE_UNUSED) |
39bec121 TW |
5249 | { |
5250 | symbolS *sym = frag->fr_symbol; | |
5251 | int growth = 0; | |
5252 | int i; | |
5253 | ||
5254 | if (sym != NULL) | |
5255 | { | |
1aea3bb8 | 5256 | struct bit_info *bi = (struct bit_info *) frag->fr_opcode; |
39bec121 TW |
5257 | int bit_offset = frag_bit_offset (frag_prev (frag, bi->seg), bi->seg); |
5258 | int size = S_GET_VALUE (sym); | |
5259 | fragS *prev_frag = bit_offset_frag (frag_prev (frag, bi->seg), bi->seg); | |
5260 | int available = 16 - bit_offset; | |
5261 | ||
5262 | if (symbol_get_frag (sym) != &zero_address_frag | |
9a736b6b NC |
5263 | || S_IS_COMMON (sym) |
5264 | || !S_IS_DEFINED (sym)) | |
5265 | as_bad_where (frag->fr_file, frag->fr_line, | |
5266 | _("non-absolute value used with .space/.bes")); | |
39bec121 TW |
5267 | |
5268 | if (size < 0) | |
9a736b6b NC |
5269 | { |
5270 | as_warn (_("negative value ignored in %s"), | |
5271 | bi->type == TYPE_SPACE ? ".space" : | |
5272 | bi->type == TYPE_BES ? ".bes" : ".field"); | |
5273 | growth = 0; | |
5274 | frag->tc_frag_data = frag->fr_fix = 0; | |
5275 | return 0; | |
5276 | } | |
39bec121 TW |
5277 | |
5278 | if (bi->type == TYPE_FIELD) | |
9a736b6b NC |
5279 | { |
5280 | /* Bit fields of 16 or larger will have already been handled. */ | |
5281 | if (bit_offset != 0 && available >= size) | |
5282 | { | |
5283 | char *p = prev_frag->fr_literal; | |
f1e7a2c9 | 5284 | |
9a736b6b NC |
5285 | valueT value = bi->value; |
5286 | value <<= available - size; | |
5287 | value |= ((unsigned short) p[1] << 8) | p[0]; | |
5288 | md_number_to_chars (p, value, 2); | |
5289 | if ((prev_frag->tc_frag_data += size) == 16) | |
5290 | prev_frag->tc_frag_data = 0; | |
5291 | if (bi->sym) | |
5292 | symbol_set_frag (bi->sym, prev_frag); | |
5293 | /* This frag is no longer used. */ | |
5294 | growth = -frag->fr_fix; | |
5295 | frag->fr_fix = 0; | |
5296 | frag->tc_frag_data = 0; | |
5297 | } | |
5298 | else | |
5299 | { | |
5300 | char *p = frag->fr_literal; | |
f1e7a2c9 | 5301 | |
9a736b6b NC |
5302 | valueT value = bi->value << (16 - size); |
5303 | md_number_to_chars (p, value, 2); | |
5304 | if ((frag->tc_frag_data = size) == 16) | |
5305 | frag->tc_frag_data = 0; | |
5306 | growth = 0; | |
5307 | } | |
5308 | } | |
39bec121 | 5309 | else |
9a736b6b NC |
5310 | { |
5311 | if (bit_offset != 0 && bit_offset < 16) | |
5312 | { | |
5313 | if (available >= size) | |
5314 | { | |
5315 | if ((prev_frag->tc_frag_data += size) == 16) | |
5316 | prev_frag->tc_frag_data = 0; | |
5317 | if (bi->sym) | |
5318 | symbol_set_frag (bi->sym, prev_frag); | |
5319 | /* This frag is no longer used. */ | |
5320 | growth = -frag->fr_fix; | |
5321 | frag->fr_fix = 0; | |
5322 | frag->tc_frag_data = 0; | |
5323 | goto getout; | |
5324 | } | |
5325 | if (bi->type == TYPE_SPACE && bi->sym) | |
5326 | symbol_set_frag (bi->sym, prev_frag); | |
5327 | size -= available; | |
5328 | } | |
5329 | growth = (size + 15) / 16 * OCTETS_PER_BYTE - frag->fr_fix; | |
5330 | for (i = 0; i < growth; i++) | |
5331 | frag->fr_literal[i] = 0; | |
5332 | frag->fr_fix = growth; | |
5333 | frag->tc_frag_data = size % 16; | |
5334 | /* Make sure any BES label points to the LAST word allocated. */ | |
5335 | if (bi->type == TYPE_BES && bi->sym) | |
5336 | S_SET_VALUE (bi->sym, frag->fr_fix / OCTETS_PER_BYTE - 1); | |
5337 | } | |
39bec121 TW |
5338 | getout: |
5339 | frag->fr_symbol = 0; | |
5340 | frag->fr_opcode = 0; | |
1aea3bb8 | 5341 | free ((void *) bi); |
39bec121 TW |
5342 | } |
5343 | return growth; | |
5344 | } | |
5345 | ||
5346 | void | |
5a49b8ac AM |
5347 | tic54x_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, |
5348 | segT seg ATTRIBUTE_UNUSED, | |
5349 | fragS *frag) | |
39bec121 | 5350 | { |
d0313fb7 | 5351 | /* Offset is in bytes. */ |
1aea3bb8 | 5352 | frag->fr_offset = (frag->fr_next->fr_address |
9a736b6b NC |
5353 | - frag->fr_address |
5354 | - frag->fr_fix) / frag->fr_var; | |
39bec121 TW |
5355 | if (frag->fr_offset < 0) |
5356 | { | |
5357 | as_bad_where (frag->fr_file, frag->fr_line, | |
9a736b6b NC |
5358 | _("attempt to .space/.bes backwards? (%ld)"), |
5359 | (long) frag->fr_offset); | |
39bec121 TW |
5360 | } |
5361 | frag->fr_type = rs_space; | |
5362 | } | |
5363 | ||
d0313fb7 | 5364 | /* We need to avoid having labels defined for certain directives/pseudo-ops |
39bec121 TW |
5365 | since once the label is defined, it's in the symbol table for good. TI |
5366 | syntax puts the symbol *before* the pseudo (which is kinda like MRI syntax, | |
5367 | I guess, except I've never seen a definition of MRI syntax). | |
5368 | ||
5369 | C is the character that used to be at *REST, which points to the end of the | |
1aea3bb8 | 5370 | label. |
39bec121 | 5371 | |
d0313fb7 | 5372 | Don't allow labels to start with '.' */ |
9a736b6b | 5373 | |
39bec121 | 5374 | int |
5a49b8ac | 5375 | tic54x_start_label (int c, char *rest) |
39bec121 | 5376 | { |
d0313fb7 | 5377 | /* If within .struct/.union, no auto line labels, please. */ |
39bec121 TW |
5378 | if (current_stag != NULL) |
5379 | return 0; | |
5380 | ||
d0313fb7 | 5381 | /* Disallow labels starting with "." */ |
39bec121 TW |
5382 | if (c != ':') |
5383 | { | |
5384 | char *label = rest; | |
f1e7a2c9 | 5385 | |
1aea3bb8 | 5386 | while (!is_end_of_line[(int) label[-1]]) |
9a736b6b | 5387 | --label; |
39bec121 | 5388 | if (*label == '.') |
9a736b6b NC |
5389 | { |
5390 | as_bad (_("Invalid label '%s'"), label); | |
5391 | return 0; | |
5392 | } | |
39bec121 TW |
5393 | } |
5394 | ||
1aea3bb8 | 5395 | if (is_end_of_line[(int) c]) |
39bec121 TW |
5396 | return 1; |
5397 | ||
3882b010 L |
5398 | if (ISSPACE (c)) |
5399 | while (ISSPACE (c = *++rest)) | |
39bec121 TW |
5400 | ; |
5401 | if (c == '.') | |
5402 | { | |
d0313fb7 | 5403 | /* Don't let colon () define a label for any of these... */ |
3882b010 L |
5404 | return (strncasecmp (rest, ".tag", 4) != 0 || !ISSPACE (rest[4])) |
5405 | && (strncasecmp (rest, ".struct", 7) != 0 || !ISSPACE (rest[7])) | |
5406 | && (strncasecmp (rest, ".union", 6) != 0 || !ISSPACE (rest[6])) | |
5407 | && (strncasecmp (rest, ".macro", 6) != 0 || !ISSPACE (rest[6])) | |
5408 | && (strncasecmp (rest, ".set", 4) != 0 || !ISSPACE (rest[4])) | |
5409 | && (strncasecmp (rest, ".equ", 4) != 0 || !ISSPACE (rest[4])); | |
39bec121 TW |
5410 | } |
5411 | ||
5412 | return 1; | |
5413 | } |