Commit | Line | Data |
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39bec121 | 1 | /* tc-tic54x.c -- Assembly code for the Texas Instruments TMS320C54X |
b90efa5b | 2 | Copyright (C) 1999-2015 Free Software Foundation, Inc. |
39bec121 TW |
3 | Contributed by Timothy Wall (twall@cygnus.com) |
4 | ||
5 | This file is part of GAS, the GNU Assembler. | |
6 | ||
7 | GAS is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
ec2655a6 | 9 | the Free Software Foundation; either version 3, or (at your option) |
39bec121 TW |
10 | any later version. |
11 | ||
12 | GAS is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GAS; see the file COPYING. If not, write to the Free | |
4b4da160 NC |
19 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
20 | 02110-1301, USA. */ | |
39bec121 | 21 | |
d0313fb7 | 22 | /* Texas Instruments TMS320C54X machine specific gas. |
39bec121 TW |
23 | Written by Timothy Wall (twall@alum.mit.edu). |
24 | ||
25 | Valuable things to do: | |
26 | Pipeline conflict warnings | |
27 | We encode/decode "ld #_label, dp" differently in relocatable files | |
28 | This means we're not compatible with TI output containing those | |
29 | expressions. We store the upper nine bits; TI stores the lower nine | |
30 | bits. How they recover the original upper nine bits is beyond me. | |
31 | ||
32 | Tests to add to expect testsuite: | |
33 | '=' and '==' with .if, .elseif, and .break | |
34 | ||
35 | Incompatibilities (mostly trivial): | |
36 | We don't allow ''' | |
37 | We fill text section with zeroes instead of "nop"s | |
38 | We don't convert '' or "" to a single instance | |
39 | We don't convert '' to '\0' | |
40 | We don't allow strings with .byte/.half/.short/.long | |
41 | Probably details of the subsym stuff are different | |
6e917903 TW |
42 | TI sets labels to be data type 4 (T_INT); GAS uses T_NULL. |
43 | ||
44 | COFF1 limits section names to 8 characters. | |
f1e7a2c9 | 45 | Some of the default behavior changed from COFF1 to COFF2. */ |
39bec121 | 46 | |
39bec121 | 47 | #include "as.h" |
df7b86aa | 48 | #include <limits.h> |
3882b010 | 49 | #include "safe-ctype.h" |
39bec121 TW |
50 | #include "sb.h" |
51 | #include "macro.h" | |
52 | #include "subsegs.h" | |
53 | #include "struc-symbol.h" | |
54 | #include "opcode/tic54x.h" | |
55 | #include "obj-coff.h" | |
56 | #include <math.h> | |
57 | ||
39bec121 | 58 | |
f1e7a2c9 NC |
59 | static struct stag |
60 | { | |
61 | symbolS *sym; /* Symbol for this stag; value is offset. */ | |
62 | const char *name; /* Shortcut to symbol name. */ | |
63 | bfd_vma size; /* Size of struct/union. */ | |
64 | int current_bitfield_offset; /* Temporary for tracking fields. */ | |
65 | int is_union; | |
66 | struct stag_field /* List of fields. */ | |
67 | { | |
68 | const char *name; | |
69 | bfd_vma offset; /* Of start of this field. */ | |
70 | int bitfield_offset; /* Of start of this field. */ | |
71 | struct stag *stag; /* If field is struct/union. */ | |
72 | struct stag_field *next; | |
73 | } *field; | |
74 | /* For nesting; used only in stag construction. */ | |
75 | struct stag *inner; /* Enclosed .struct. */ | |
76 | struct stag *outer; /* Enclosing .struct. */ | |
77 | } *current_stag = NULL; | |
39bec121 | 78 | |
f1e7a2c9 | 79 | #define MAX_LINE 256 /* Lines longer than this are truncated by TI's asm. */ |
9a736b6b | 80 | |
f1e7a2c9 NC |
81 | typedef struct _tic54x_insn |
82 | { | |
d3ce72d0 | 83 | const insn_template *tm; /* Opcode template. */ |
39bec121 | 84 | |
f1e7a2c9 NC |
85 | char mnemonic[MAX_LINE]; /* Opcode name/mnemonic. */ |
86 | char parmnemonic[MAX_LINE]; /* 2nd mnemonic of parallel insn. */ | |
39bec121 | 87 | |
f1e7a2c9 NC |
88 | int opcount; |
89 | struct opstruct | |
90 | { | |
91 | char buf[MAX_LINE]; | |
92 | enum optype type; | |
93 | expressionS exp; | |
94 | } operands[MAX_OPERANDS]; | |
39bec121 | 95 | |
f1e7a2c9 NC |
96 | int paropcount; |
97 | struct opstruct paroperands[MAX_OPERANDS]; | |
98 | ||
99 | int is_lkaddr; | |
100 | int lkoperand; | |
101 | int words; /* Size of insn in 16-bit words. */ | |
102 | int using_default_dst; /* Do we need to explicitly set an | |
103 | omitted OP_DST operand? */ | |
104 | struct | |
105 | { | |
106 | unsigned short word; /* Final encoded opcode data. */ | |
107 | int unresolved; | |
108 | int r_nchars; /* Relocation size. */ | |
109 | bfd_reloc_code_real_type r_type; /* Relocation type. */ | |
110 | expressionS addr_expr; /* Storage for unresolved expressions. */ | |
111 | } opcode[3]; | |
112 | } tic54x_insn; | |
d0313fb7 NC |
113 | |
114 | enum cpu_version | |
115 | { | |
39bec121 TW |
116 | VNONE = 0, V541 = 1, V542 = 2, V543 = 3, V545 = 5, V548 = 8, V549 = 9, |
117 | V545LP = 15, V546LP = 16 | |
118 | }; | |
119 | ||
d0313fb7 NC |
120 | enum address_mode |
121 | { | |
9a736b6b NC |
122 | c_mode, /* 16-bit addresses. */ |
123 | far_mode /* >16-bit addresses. */ | |
39bec121 TW |
124 | }; |
125 | ||
f1e7a2c9 NC |
126 | static segT stag_saved_seg; |
127 | static subsegT stag_saved_subseg; | |
128 | ||
129 | const char comment_chars[] = ";"; | |
130 | const char line_comment_chars[] = ";*#"; /* At column zero only. */ | |
131 | const char line_separator_chars[] = ""; /* Not permitted. */ | |
132 | ||
133 | int emitting_long = 0; | |
134 | ||
135 | /* Characters which indicate that this is a floating point constant. */ | |
136 | const char FLT_CHARS[] = "fF"; | |
137 | ||
138 | /* Characters that can be used to separate mantissa from exp in FP | |
139 | nums. */ | |
140 | const char EXP_CHARS[] = "eE"; | |
141 | ||
142 | const char *md_shortopts = ""; | |
143 | ||
39bec121 | 144 | #define OPTION_ADDRESS_MODE (OPTION_MD_BASE) |
1aea3bb8 NC |
145 | #define OPTION_CPU_VERSION (OPTION_ADDRESS_MODE + 1) |
146 | #define OPTION_COFF_VERSION (OPTION_CPU_VERSION + 1) | |
147 | #define OPTION_STDERR_TO_FILE (OPTION_COFF_VERSION + 1) | |
39bec121 | 148 | |
1aea3bb8 | 149 | struct option md_longopts[] = |
39bec121 | 150 | { |
f1e7a2c9 NC |
151 | { "mfar-mode", no_argument, NULL, OPTION_ADDRESS_MODE }, |
152 | { "mf", no_argument, NULL, OPTION_ADDRESS_MODE }, | |
153 | { "mcpu", required_argument, NULL, OPTION_CPU_VERSION }, | |
39bec121 | 154 | { "merrors-to-file", required_argument, NULL, OPTION_STDERR_TO_FILE }, |
f1e7a2c9 NC |
155 | { "me", required_argument, NULL, OPTION_STDERR_TO_FILE }, |
156 | { NULL, no_argument, NULL, 0}, | |
39bec121 TW |
157 | }; |
158 | ||
159 | size_t md_longopts_size = sizeof (md_longopts); | |
160 | ||
d0313fb7 | 161 | static int assembly_begun = 0; |
39bec121 TW |
162 | /* Addressing mode is not entirely implemented; the latest rev of the Other |
163 | assembler doesn't seem to make any distinction whatsoever; all relocations | |
164 | are stored as extended relocatiosn. Older versions used REL16 vs RELEXT16, | |
165 | but now it seems all relocations are RELEXT16. We use all RELEXT16. | |
166 | ||
167 | The cpu version is kind of a waste of time as well. There is one | |
168 | instruction (RND) for LP devices only, and several for devices with | |
d0313fb7 | 169 | extended addressing only. We include it for compatibility. */ |
39bec121 | 170 | static enum address_mode amode = c_mode; |
d0313fb7 | 171 | static enum cpu_version cpu = VNONE; |
39bec121 | 172 | |
d0313fb7 | 173 | /* Include string substitutions in listing? */ |
39bec121 | 174 | static int listing_sslist = 0; |
9a736b6b | 175 | |
d0313fb7 | 176 | /* Did we do subsym substitutions on the line? */ |
39bec121 | 177 | static int substitution_line = 0; |
9a736b6b | 178 | |
d0313fb7 | 179 | /* Last label seen. */ |
39bec121 | 180 | static symbolS *last_label_seen = NULL; |
9a736b6b | 181 | |
d0313fb7 | 182 | /* This ensures that all new labels are unique. */ |
39bec121 TW |
183 | static int local_label_id; |
184 | ||
1dab94dd | 185 | static struct hash_control *subsym_recurse_hash; /* Prevent infinite recurse. */ |
9a736b6b | 186 | static struct hash_control *math_hash; /* Built-in math functions. */ |
d0313fb7 NC |
187 | /* Allow maximum levels of macro nesting; level 0 is the main substitution |
188 | symbol table. The other assembler only does 32 levels, so there! */ | |
39bec121 | 189 | static struct hash_control *subsym_hash[100]; |
9a736b6b | 190 | |
1aea3bb8 | 191 | /* Keep track of local labels so we can substitute them before GAS sees them |
39bec121 TW |
192 | since macros use their own 'namespace' for local labels, use a separate hash |
193 | ||
194 | We do our own local label handling 'cuz it's subtly different from the | |
195 | stock GAS handling. | |
196 | ||
197 | We use our own macro nesting counter, since GAS overloads it when expanding | |
d0313fb7 | 198 | other things (like conditionals and repeat loops). */ |
39bec121 TW |
199 | static int macro_level = 0; |
200 | static struct hash_control *local_label_hash[100]; | |
d0313fb7 | 201 | /* Keep track of struct/union tags. */ |
39bec121 TW |
202 | static struct hash_control *stag_hash; |
203 | static struct hash_control *op_hash; | |
204 | static struct hash_control *parop_hash; | |
205 | static struct hash_control *reg_hash; | |
206 | static struct hash_control *mmreg_hash; | |
207 | static struct hash_control *cc_hash; | |
208 | static struct hash_control *cc2_hash; | |
209 | static struct hash_control *cc3_hash; | |
210 | static struct hash_control *sbit_hash; | |
211 | static struct hash_control *misc_symbol_hash; | |
212 | ||
f1e7a2c9 NC |
213 | /* Only word (et al.), align, or conditionals are allowed within |
214 | .struct/.union. */ | |
215 | #define ILLEGAL_WITHIN_STRUCT() \ | |
216 | do \ | |
217 | if (current_stag != NULL) \ | |
218 | { \ | |
219 | as_bad (_("pseudo-op illegal within .struct/.union")); \ | |
220 | return; \ | |
221 | } \ | |
222 | while (0) | |
39bec121 | 223 | |
5a49b8ac AM |
224 | |
225 | static void subsym_create_or_replace (char *, char *); | |
226 | static char *subsym_lookup (char *, int); | |
227 | static char *subsym_substitute (char *, int); | |
39bec121 | 228 | |
f1e7a2c9 NC |
229 | |
230 | void | |
5a49b8ac | 231 | md_show_usage (FILE *stream) |
f1e7a2c9 NC |
232 | { |
233 | fprintf (stream, _("C54x-specific command line options:\n")); | |
234 | fprintf (stream, _("-mfar-mode | -mf Use extended addressing\n")); | |
235 | fprintf (stream, _("-mcpu=<CPU version> Specify the CPU version\n")); | |
f1e7a2c9 NC |
236 | fprintf (stream, _("-merrors-to-file <filename>\n")); |
237 | fprintf (stream, _("-me <filename> Redirect errors to a file\n")); | |
238 | } | |
39bec121 | 239 | |
d0313fb7 | 240 | /* Output a single character (upper octect is zero). */ |
9a736b6b | 241 | |
d0313fb7 | 242 | static void |
5a49b8ac | 243 | tic54x_emit_char (char c) |
39bec121 | 244 | { |
91d6fa6a | 245 | expressionS expn; |
39bec121 | 246 | |
91d6fa6a NC |
247 | expn.X_op = O_constant; |
248 | expn.X_add_number = c; | |
249 | emit_expr (&expn, 2); | |
39bec121 TW |
250 | } |
251 | ||
d0313fb7 | 252 | /* Walk backwards in the frag chain. */ |
9a736b6b | 253 | |
39bec121 | 254 | static fragS * |
5a49b8ac | 255 | frag_prev (fragS *frag, segT seg) |
39bec121 TW |
256 | { |
257 | segment_info_type *seginfo = seg_info (seg); | |
258 | fragS *fragp; | |
259 | ||
d0313fb7 | 260 | for (fragp = seginfo->frchainP->frch_root; fragp; fragp = fragp->fr_next) |
39bec121 TW |
261 | if (fragp->fr_next == frag) |
262 | return fragp; | |
1aea3bb8 | 263 | |
39bec121 TW |
264 | return NULL; |
265 | } | |
266 | ||
267 | static fragS * | |
5a49b8ac | 268 | bit_offset_frag (fragS *frag, segT seg) |
39bec121 TW |
269 | { |
270 | while (frag != NULL) | |
271 | { | |
d0313fb7 NC |
272 | if (frag->fr_fix == 0 |
273 | && frag->fr_opcode == NULL | |
274 | && frag->tc_frag_data == 0) | |
275 | frag = frag_prev (frag, seg); | |
39bec121 | 276 | else |
d0313fb7 | 277 | return frag; |
39bec121 TW |
278 | } |
279 | return NULL; | |
280 | } | |
281 | ||
d0313fb7 NC |
282 | /* Return the number of bits allocated in the most recent word, or zero if |
283 | none. .field/.space/.bes may leave words partially allocated. */ | |
9a736b6b | 284 | |
39bec121 | 285 | static int |
5a49b8ac | 286 | frag_bit_offset (fragS *frag, segT seg) |
39bec121 TW |
287 | { |
288 | frag = bit_offset_frag (frag, seg); | |
1aea3bb8 | 289 | |
39bec121 | 290 | if (frag) |
d0313fb7 NC |
291 | return frag->fr_opcode != NULL ? -1 : frag->tc_frag_data; |
292 | ||
39bec121 TW |
293 | return 0; |
294 | } | |
295 | ||
d0313fb7 NC |
296 | /* Read an expression from a C string; returns a pointer past the end of the |
297 | expression. */ | |
9a736b6b | 298 | |
39bec121 | 299 | static char * |
91d6fa6a | 300 | parse_expression (char *str, expressionS *expn) |
39bec121 TW |
301 | { |
302 | char *s; | |
303 | char *tmp; | |
304 | ||
305 | tmp = input_line_pointer; /* Save line pointer. */ | |
306 | input_line_pointer = str; | |
91d6fa6a | 307 | expression (expn); |
39bec121 TW |
308 | s = input_line_pointer; |
309 | input_line_pointer = tmp; /* Restore line pointer. */ | |
310 | return s; /* Return pointer to where parsing stopped. */ | |
311 | } | |
312 | ||
1aea3bb8 NC |
313 | /* .asg "character-string"|character-string, symbol |
314 | ||
39bec121 TW |
315 | .eval is the only pseudo-op allowed to perform arithmetic on substitution |
316 | symbols. all other use of symbols defined with .asg are currently | |
d0313fb7 | 317 | unsupported. */ |
9a736b6b | 318 | |
d0313fb7 | 319 | static void |
5a49b8ac | 320 | tic54x_asg (int x ATTRIBUTE_UNUSED) |
39bec121 TW |
321 | { |
322 | int c; | |
323 | char *name; | |
324 | char *str; | |
325 | char *tmp; | |
326 | int quoted = *input_line_pointer == '"'; | |
327 | ||
328 | ILLEGAL_WITHIN_STRUCT (); | |
329 | ||
330 | if (quoted) | |
331 | { | |
332 | int len; | |
333 | str = demand_copy_C_string (&len); | |
334 | c = *input_line_pointer; | |
335 | } | |
336 | else | |
337 | { | |
338 | str = input_line_pointer; | |
339 | while ((c = *input_line_pointer) != ',') | |
d0313fb7 NC |
340 | { |
341 | if (is_end_of_line[(int) *input_line_pointer]) | |
342 | break; | |
343 | ++input_line_pointer; | |
344 | } | |
39bec121 TW |
345 | *input_line_pointer = 0; |
346 | } | |
347 | if (c != ',') | |
348 | { | |
349 | as_bad (_("Comma and symbol expected for '.asg STRING, SYMBOL'")); | |
350 | ignore_rest_of_line (); | |
351 | return; | |
352 | } | |
353 | ||
354 | name = ++input_line_pointer; | |
355 | c = get_symbol_end (); /* Get terminator. */ | |
3882b010 | 356 | if (!ISALPHA (*name)) |
39bec121 | 357 | { |
20203fb9 | 358 | as_bad (_("symbols assigned with .asg must begin with a letter")); |
39bec121 TW |
359 | ignore_rest_of_line (); |
360 | return; | |
361 | } | |
362 | ||
363 | tmp = xmalloc (strlen (str) + 1); | |
364 | strcpy (tmp, str); | |
365 | str = tmp; | |
366 | tmp = xmalloc (strlen (name) + 1); | |
367 | strcpy (tmp, name); | |
368 | name = tmp; | |
369 | subsym_create_or_replace (name, str); | |
370 | *input_line_pointer = c; | |
371 | demand_empty_rest_of_line (); | |
372 | } | |
373 | ||
1aea3bb8 | 374 | /* .eval expression, symbol |
39bec121 | 375 | There's something screwy about this. The other assembler sometimes does and |
1aea3bb8 | 376 | sometimes doesn't substitute symbols defined with .eval. |
39bec121 | 377 | We'll put the symbols into the subsym table as well as the normal symbol |
d0313fb7 | 378 | table, since that's what works best. */ |
9a736b6b | 379 | |
d0313fb7 | 380 | static void |
5a49b8ac | 381 | tic54x_eval (int x ATTRIBUTE_UNUSED) |
39bec121 TW |
382 | { |
383 | char c; | |
384 | int value; | |
385 | char *name; | |
386 | symbolS *symbolP; | |
387 | char valuestr[32], *tmp; | |
388 | int quoted; | |
389 | ||
390 | ILLEGAL_WITHIN_STRUCT (); | |
391 | ||
392 | SKIP_WHITESPACE (); | |
393 | ||
394 | quoted = *input_line_pointer == '"'; | |
395 | if (quoted) | |
396 | ++input_line_pointer; | |
397 | value = get_absolute_expression (); | |
398 | if (quoted) | |
399 | { | |
400 | if (*input_line_pointer != '"') | |
d0313fb7 NC |
401 | { |
402 | as_bad (_("Unterminated string after absolute expression")); | |
403 | ignore_rest_of_line (); | |
404 | return; | |
405 | } | |
39bec121 TW |
406 | ++input_line_pointer; |
407 | } | |
408 | if (*input_line_pointer++ != ',') | |
409 | { | |
410 | as_bad (_("Comma and symbol expected for '.eval EXPR, SYMBOL'")); | |
411 | ignore_rest_of_line (); | |
412 | return; | |
413 | } | |
414 | name = input_line_pointer; | |
415 | c = get_symbol_end (); /* Get terminator. */ | |
d0313fb7 | 416 | tmp = xmalloc (strlen (name) + 1); |
39bec121 TW |
417 | name = strcpy (tmp, name); |
418 | *input_line_pointer = c; | |
419 | ||
3882b010 | 420 | if (!ISALPHA (*name)) |
39bec121 TW |
421 | { |
422 | as_bad (_("symbols assigned with .eval must begin with a letter")); | |
423 | ignore_rest_of_line (); | |
424 | return; | |
425 | } | |
426 | symbolP = symbol_new (name, absolute_section, | |
427 | (valueT) value, &zero_address_frag); | |
428 | SF_SET_LOCAL (symbolP); | |
429 | symbol_table_insert (symbolP); | |
430 | ||
431 | /* The "other" assembler sometimes doesn't put .eval's in the subsym table | |
432 | But since there's not written rule as to when, don't even bother trying | |
d0313fb7 | 433 | to match their behavior. */ |
39bec121 TW |
434 | sprintf (valuestr, "%d", value); |
435 | tmp = xmalloc (strlen (valuestr) + 1); | |
436 | strcpy (tmp, valuestr); | |
437 | subsym_create_or_replace (name, tmp); | |
438 | ||
439 | demand_empty_rest_of_line (); | |
440 | } | |
441 | ||
1aea3bb8 | 442 | /* .bss symbol, size [, [blocking flag] [, alignment flag] |
39bec121 TW |
443 | |
444 | alignment is to a longword boundary; blocking is to 128-word boundary. | |
445 | ||
446 | 1) if there is a hole in memory, this directive should attempt to fill it | |
447 | (not yet implemented). | |
448 | ||
449 | 2) if the blocking flag is not set, allocate at the current SPC | |
450 | otherwise, check to see if the current SPC plus the space to be | |
451 | allocated crosses the page boundary (128 words). | |
452 | if there's not enough space, create a hole and align with the next page | |
1aea3bb8 | 453 | boundary. |
d0313fb7 | 454 | (not yet implemented). */ |
9a736b6b | 455 | |
d0313fb7 | 456 | static void |
5a49b8ac | 457 | tic54x_bss (int x ATTRIBUTE_UNUSED) |
39bec121 TW |
458 | { |
459 | char c; | |
460 | char *name; | |
461 | char *p; | |
462 | int words; | |
463 | segT current_seg; | |
464 | subsegT current_subseg; | |
465 | symbolS *symbolP; | |
466 | int block = 0; | |
467 | int align = 0; | |
468 | ||
469 | ILLEGAL_WITHIN_STRUCT (); | |
470 | ||
d0313fb7 NC |
471 | current_seg = now_seg; /* Save current seg. */ |
472 | current_subseg = now_subseg; /* Save current subseg. */ | |
39bec121 TW |
473 | |
474 | name = input_line_pointer; | |
475 | c = get_symbol_end (); /* Get terminator. */ | |
476 | if (c != ',') | |
477 | { | |
20203fb9 | 478 | as_bad (_(".bss size argument missing\n")); |
39bec121 TW |
479 | ignore_rest_of_line (); |
480 | return; | |
481 | } | |
482 | ||
483 | ++input_line_pointer; | |
484 | words = get_absolute_expression (); | |
485 | if (words < 0) | |
486 | { | |
20203fb9 | 487 | as_bad (_(".bss size %d < 0!"), words); |
39bec121 TW |
488 | ignore_rest_of_line (); |
489 | return; | |
490 | } | |
491 | ||
492 | if (*input_line_pointer == ',') | |
493 | { | |
9a736b6b | 494 | /* The blocking flag may be missing. */ |
39bec121 TW |
495 | ++input_line_pointer; |
496 | if (*input_line_pointer != ',') | |
d0313fb7 | 497 | block = get_absolute_expression (); |
39bec121 | 498 | else |
d0313fb7 | 499 | block = 0; |
39bec121 TW |
500 | |
501 | if (*input_line_pointer == ',') | |
d0313fb7 NC |
502 | { |
503 | ++input_line_pointer; | |
504 | align = get_absolute_expression (); | |
505 | } | |
39bec121 | 506 | else |
d0313fb7 | 507 | align = 0; |
39bec121 TW |
508 | } |
509 | else | |
510 | block = align = 0; | |
511 | ||
512 | subseg_set (bss_section, 0); | |
513 | symbolP = symbol_find_or_make (name); | |
514 | ||
515 | if (S_GET_SEGMENT (symbolP) == bss_section) | |
516 | symbolP->sy_frag->fr_symbol = (symbolS *) NULL; | |
517 | ||
518 | symbol_set_frag (symbolP, frag_now); | |
519 | p = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, | |
6e917903 | 520 | (offsetT) (words * OCTETS_PER_BYTE), (char *) 0); |
9a736b6b | 521 | *p = 0; /* Fill char. */ |
39bec121 TW |
522 | |
523 | S_SET_SEGMENT (symbolP, bss_section); | |
524 | ||
525 | /* The symbol may already have been created with a preceding | |
526 | ".globl" directive -- be careful not to step on storage class | |
527 | in that case. Otherwise, set it to static. */ | |
528 | if (S_GET_STORAGE_CLASS (symbolP) != C_EXT) | |
529 | S_SET_STORAGE_CLASS (symbolP, C_STAT); | |
530 | ||
531 | if (align) | |
532 | { | |
533 | /* s_align eats end of line; restore it */ | |
534 | s_align_bytes (4); | |
535 | --input_line_pointer; | |
536 | } | |
537 | ||
538 | if (block) | |
ebe372c1 | 539 | bss_section->flags |= SEC_TIC54X_BLOCK; |
39bec121 | 540 | |
9a736b6b | 541 | subseg_set (current_seg, current_subseg); /* Restore current seg. */ |
39bec121 TW |
542 | demand_empty_rest_of_line (); |
543 | } | |
544 | ||
545 | static void | |
5a49b8ac AM |
546 | stag_add_field_symbols (struct stag *stag, |
547 | const char *path, | |
548 | bfd_vma base_offset, | |
549 | symbolS *rootsym, | |
550 | const char *root_stag_name) | |
39bec121 TW |
551 | { |
552 | char prefix[strlen (path) + 2]; | |
553 | struct stag_field *field = stag->field; | |
1aea3bb8 NC |
554 | |
555 | /* Construct a symbol for every field contained within this structure | |
d0313fb7 | 556 | including fields within structure fields. */ |
39bec121 TW |
557 | strcpy (prefix, path); |
558 | if (*path) | |
559 | strcat (prefix, "."); | |
560 | ||
561 | while (field != NULL) | |
562 | { | |
563 | int len = strlen (prefix) + strlen (field->name) + 2; | |
564 | char *name = xmalloc (len); | |
565 | strcpy (name, prefix); | |
566 | strcat (name, field->name); | |
567 | ||
568 | if (rootsym == NULL) | |
9a736b6b NC |
569 | { |
570 | symbolS *sym; | |
571 | sym = symbol_new (name, absolute_section, | |
572 | (field->stag ? field->offset : | |
573 | (valueT) (base_offset + field->offset)), | |
574 | &zero_address_frag); | |
575 | SF_SET_LOCAL (sym); | |
576 | symbol_table_insert (sym); | |
577 | } | |
39bec121 | 578 | else |
9a736b6b NC |
579 | { |
580 | char *replacement = xmalloc (strlen (name) | |
1aea3bb8 | 581 | + strlen (stag->name) + 2); |
9a736b6b NC |
582 | strcpy (replacement, S_GET_NAME (rootsym)); |
583 | strcat (replacement, "+"); | |
584 | strcat (replacement, root_stag_name); | |
585 | strcat (replacement, name + strlen (S_GET_NAME (rootsym))); | |
586 | hash_insert (subsym_hash[0], name, replacement); | |
587 | } | |
39bec121 | 588 | |
d0313fb7 | 589 | /* Recurse if the field is a structure. |
9a736b6b | 590 | Note the field offset is relative to the outermost struct. */ |
39bec121 | 591 | if (field->stag != NULL) |
9a736b6b NC |
592 | stag_add_field_symbols (field->stag, name, |
593 | field->offset, | |
594 | rootsym, root_stag_name); | |
39bec121 TW |
595 | field = field->next; |
596 | } | |
597 | } | |
598 | ||
d0313fb7 NC |
599 | /* Keep track of stag fields so that when structures are nested we can add the |
600 | complete dereferencing symbols to the symbol table. */ | |
9a736b6b | 601 | |
39bec121 | 602 | static void |
5a49b8ac AM |
603 | stag_add_field (struct stag *parent, |
604 | const char *name, | |
605 | bfd_vma offset, | |
606 | struct stag *stag) | |
39bec121 TW |
607 | { |
608 | struct stag_field *sfield = xmalloc (sizeof (struct stag_field)); | |
609 | ||
610 | memset (sfield, 0, sizeof (*sfield)); | |
1aea3bb8 | 611 | sfield->name = strcpy (xmalloc (strlen (name) + 1), name); |
39bec121 TW |
612 | sfield->offset = offset; |
613 | sfield->bitfield_offset = parent->current_bitfield_offset; | |
614 | sfield->stag = stag; | |
615 | if (parent->field == NULL) | |
616 | parent->field = sfield; | |
1aea3bb8 NC |
617 | else |
618 | { | |
619 | struct stag_field *sf = parent->field; | |
620 | while (sf->next != NULL) | |
621 | sf = sf->next; | |
622 | sf->next = sfield; | |
623 | } | |
d0313fb7 | 624 | /* Only create a symbol for this field if the parent has no name. */ |
39bec121 TW |
625 | if (!strncmp (".fake", parent->name, 5)) |
626 | { | |
1aea3bb8 | 627 | symbolS *sym = symbol_new (name, absolute_section, |
9a736b6b | 628 | (valueT) offset, &zero_address_frag); |
39bec121 TW |
629 | SF_SET_LOCAL (sym); |
630 | symbol_table_insert (sym); | |
631 | } | |
632 | } | |
633 | ||
634 | /* [STAG] .struct [OFFSET] | |
9a736b6b NC |
635 | Start defining structure offsets (symbols in absolute section). */ |
636 | ||
39bec121 | 637 | static void |
5a49b8ac | 638 | tic54x_struct (int arg) |
39bec121 TW |
639 | { |
640 | int start_offset = 0; | |
641 | int is_union = arg; | |
642 | ||
643 | if (!current_stag) | |
644 | { | |
d0313fb7 | 645 | /* Starting a new struct, switch to absolute section. */ |
39bec121 TW |
646 | stag_saved_seg = now_seg; |
647 | stag_saved_subseg = now_subseg; | |
648 | subseg_set (absolute_section, 0); | |
649 | } | |
d0313fb7 | 650 | /* Align the current pointer. */ |
39bec121 TW |
651 | else if (current_stag->current_bitfield_offset != 0) |
652 | { | |
653 | ++abs_section_offset; | |
654 | current_stag->current_bitfield_offset = 0; | |
655 | } | |
656 | ||
d0313fb7 | 657 | /* Offset expression is only meaningful for global .structs. */ |
39bec121 TW |
658 | if (!is_union) |
659 | { | |
d0313fb7 | 660 | /* Offset is ignored in inner structs. */ |
39bec121 | 661 | SKIP_WHITESPACE (); |
1aea3bb8 | 662 | if (!is_end_of_line[(int) *input_line_pointer]) |
9a736b6b | 663 | start_offset = get_absolute_expression (); |
39bec121 | 664 | else |
9a736b6b | 665 | start_offset = 0; |
39bec121 TW |
666 | } |
667 | ||
668 | if (current_stag) | |
669 | { | |
d0313fb7 | 670 | /* Nesting, link to outer one. */ |
1aea3bb8 | 671 | current_stag->inner = (struct stag *) xmalloc (sizeof (struct stag)); |
39bec121 TW |
672 | memset (current_stag->inner, 0, sizeof (struct stag)); |
673 | current_stag->inner->outer = current_stag; | |
674 | current_stag = current_stag->inner; | |
675 | if (start_offset) | |
9a736b6b | 676 | as_warn (_("Offset on nested structures is ignored")); |
39bec121 TW |
677 | start_offset = abs_section_offset; |
678 | } | |
1aea3bb8 | 679 | else |
39bec121 | 680 | { |
1aea3bb8 | 681 | current_stag = (struct stag *) xmalloc (sizeof (struct stag)); |
39bec121 TW |
682 | memset (current_stag, 0, sizeof (struct stag)); |
683 | abs_section_offset = start_offset; | |
684 | } | |
685 | current_stag->is_union = is_union; | |
686 | ||
687 | if (line_label == NULL) | |
688 | { | |
689 | static int struct_count = 0; | |
690 | char fake[] = ".fake_stagNNNNNNN"; | |
691 | sprintf (fake, ".fake_stag%d", struct_count++); | |
692 | current_stag->sym = symbol_new (fake, absolute_section, | |
9a736b6b NC |
693 | (valueT) abs_section_offset, |
694 | &zero_address_frag); | |
39bec121 TW |
695 | } |
696 | else | |
697 | { | |
698 | char label[strlen (S_GET_NAME (line_label)) + 1]; | |
699 | strcpy (label, S_GET_NAME (line_label)); | |
700 | current_stag->sym = symbol_new (label, absolute_section, | |
9a736b6b NC |
701 | (valueT) abs_section_offset, |
702 | &zero_address_frag); | |
39bec121 TW |
703 | } |
704 | current_stag->name = S_GET_NAME (current_stag->sym); | |
705 | SF_SET_LOCAL (current_stag->sym); | |
d0313fb7 | 706 | /* Nested .structs don't go into the symbol table. */ |
39bec121 TW |
707 | if (current_stag->outer == NULL) |
708 | symbol_table_insert (current_stag->sym); | |
709 | ||
710 | line_label = NULL; | |
711 | } | |
712 | ||
1aea3bb8 | 713 | /* [LABEL] .endstruct |
39bec121 | 714 | finish defining structure offsets; optional LABEL's value will be the size |
d0313fb7 | 715 | of the structure. */ |
9a736b6b | 716 | |
39bec121 | 717 | static void |
5a49b8ac | 718 | tic54x_endstruct (int is_union) |
39bec121 TW |
719 | { |
720 | int size; | |
1aea3bb8 | 721 | const char *path = |
39bec121 | 722 | !strncmp (current_stag->name, ".fake", 5) ? "" : current_stag->name; |
1aea3bb8 | 723 | |
39bec121 TW |
724 | if (!current_stag || current_stag->is_union != is_union) |
725 | { | |
1aea3bb8 | 726 | as_bad (_(".end%s without preceding .%s"), |
9a736b6b NC |
727 | is_union ? "union" : "struct", |
728 | is_union ? "union" : "struct"); | |
39bec121 TW |
729 | ignore_rest_of_line (); |
730 | return; | |
731 | } | |
732 | ||
d0313fb7 | 733 | /* Align end of structures. */ |
39bec121 TW |
734 | if (current_stag->current_bitfield_offset) |
735 | { | |
736 | ++abs_section_offset; | |
737 | current_stag->current_bitfield_offset = 0; | |
738 | } | |
739 | ||
740 | if (current_stag->is_union) | |
741 | size = current_stag->size; | |
742 | else | |
743 | size = abs_section_offset - S_GET_VALUE (current_stag->sym); | |
744 | if (line_label != NULL) | |
745 | { | |
746 | S_SET_VALUE (line_label, size); | |
747 | symbol_table_insert (line_label); | |
748 | line_label = NULL; | |
749 | } | |
750 | ||
d0313fb7 | 751 | /* Union size has already been calculated. */ |
39bec121 TW |
752 | if (!current_stag->is_union) |
753 | current_stag->size = size; | |
d0313fb7 | 754 | /* Nested .structs don't get put in the stag table. */ |
39bec121 TW |
755 | if (current_stag->outer == NULL) |
756 | { | |
757 | hash_insert (stag_hash, current_stag->name, current_stag); | |
1aea3bb8 | 758 | stag_add_field_symbols (current_stag, path, |
9a736b6b NC |
759 | S_GET_VALUE (current_stag->sym), |
760 | NULL, NULL); | |
39bec121 TW |
761 | } |
762 | current_stag = current_stag->outer; | |
763 | ||
d0313fb7 NC |
764 | /* If this is a nested .struct/.union, add it as a field to the enclosing |
765 | one. otherwise, restore the section we were in. */ | |
39bec121 TW |
766 | if (current_stag != NULL) |
767 | { | |
768 | stag_add_field (current_stag, current_stag->inner->name, | |
9a736b6b NC |
769 | S_GET_VALUE (current_stag->inner->sym), |
770 | current_stag->inner); | |
39bec121 TW |
771 | } |
772 | else | |
773 | subseg_set (stag_saved_seg, stag_saved_subseg); | |
774 | } | |
775 | ||
776 | /* [LABEL] .tag STAG | |
777 | Reference a structure within a structure, as a sized field with an optional | |
1aea3bb8 | 778 | label. |
39bec121 | 779 | If used outside of a .struct/.endstruct, overlays the given structure |
d0313fb7 | 780 | format on the existing allocated space. */ |
9a736b6b | 781 | |
39bec121 | 782 | static void |
5a49b8ac | 783 | tic54x_tag (int ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
784 | { |
785 | char *name = input_line_pointer; | |
786 | int c = get_symbol_end (); | |
1aea3bb8 | 787 | struct stag *stag = (struct stag *) hash_find (stag_hash, name); |
39bec121 TW |
788 | |
789 | if (!stag) | |
790 | { | |
791 | if (*name) | |
9a736b6b | 792 | as_bad (_("Unrecognized struct/union tag '%s'"), name); |
39bec121 | 793 | else |
9a736b6b | 794 | as_bad (_(".tag requires a structure tag")); |
39bec121 TW |
795 | ignore_rest_of_line (); |
796 | return; | |
797 | } | |
798 | if (line_label == NULL) | |
799 | { | |
800 | as_bad (_("Label required for .tag")); | |
801 | ignore_rest_of_line (); | |
802 | return; | |
803 | } | |
804 | else | |
805 | { | |
1aea3bb8 NC |
806 | char label[strlen (S_GET_NAME (line_label)) + 1]; |
807 | ||
808 | strcpy (label, S_GET_NAME (line_label)); | |
39bec121 | 809 | if (current_stag != NULL) |
9a736b6b NC |
810 | stag_add_field (current_stag, label, |
811 | abs_section_offset - S_GET_VALUE (current_stag->sym), | |
812 | stag); | |
39bec121 | 813 | else |
9a736b6b NC |
814 | { |
815 | symbolS *sym = symbol_find (label); | |
f1e7a2c9 | 816 | |
9a736b6b NC |
817 | if (!sym) |
818 | { | |
819 | as_bad (_(".tag target '%s' undefined"), label); | |
820 | ignore_rest_of_line (); | |
821 | return; | |
822 | } | |
823 | stag_add_field_symbols (stag, S_GET_NAME (sym), | |
824 | S_GET_VALUE (stag->sym), sym, stag->name); | |
825 | } | |
39bec121 | 826 | } |
1aea3bb8 | 827 | |
d0313fb7 | 828 | /* Bump by the struct size, but only if we're within a .struct section. */ |
39bec121 TW |
829 | if (current_stag != NULL && !current_stag->is_union) |
830 | abs_section_offset += stag->size; | |
831 | ||
832 | *input_line_pointer = c; | |
833 | demand_empty_rest_of_line (); | |
834 | line_label = NULL; | |
835 | } | |
836 | ||
d0313fb7 | 837 | /* Handle all .byte, .char, .double, .field, .float, .half, .int, .long, |
39bec121 | 838 | .short, .string, .ubyte, .uchar, .uhalf, .uint, .ulong, .ushort, .uword, |
d0313fb7 | 839 | and .word. */ |
9a736b6b | 840 | |
39bec121 | 841 | static void |
5a49b8ac | 842 | tic54x_struct_field (int type) |
39bec121 TW |
843 | { |
844 | int size; | |
845 | int count = 1; | |
846 | int new_bitfield_offset = 0; | |
847 | int field_align = current_stag->current_bitfield_offset != 0; | |
848 | int longword_align = 0; | |
849 | ||
850 | SKIP_WHITESPACE (); | |
1aea3bb8 | 851 | if (!is_end_of_line[(int) *input_line_pointer]) |
39bec121 TW |
852 | count = get_absolute_expression (); |
853 | ||
854 | switch (type) | |
855 | { | |
856 | case 'b': | |
857 | case 'B': | |
858 | case 'c': | |
859 | case 'C': | |
860 | case 'h': | |
861 | case 'H': | |
862 | case 'i': | |
863 | case 'I': | |
864 | case 's': | |
865 | case 'S': | |
866 | case 'w': | |
867 | case 'W': | |
9a736b6b | 868 | case '*': /* String. */ |
39bec121 TW |
869 | size = 1; |
870 | break; | |
871 | case 'f': | |
872 | case 'l': | |
873 | case 'L': | |
874 | longword_align = 1; | |
875 | size = 2; | |
876 | break; | |
9a736b6b | 877 | case '.': /* Bitfield. */ |
39bec121 TW |
878 | size = 0; |
879 | if (count < 1 || count > 32) | |
9a736b6b NC |
880 | { |
881 | as_bad (_(".field count '%d' out of range (1 <= X <= 32)"), count); | |
882 | ignore_rest_of_line (); | |
883 | return; | |
884 | } | |
39bec121 | 885 | if (current_stag->current_bitfield_offset + count > 16) |
9a736b6b NC |
886 | { |
887 | /* Set the appropriate size and new field offset. */ | |
888 | if (count == 32) | |
889 | { | |
890 | size = 2; | |
1aea3bb8 | 891 | count = 1; |
9a736b6b NC |
892 | } |
893 | else if (count > 16) | |
894 | { | |
895 | size = 1; | |
1aea3bb8 | 896 | count = 1; |
9a736b6b NC |
897 | new_bitfield_offset = count - 16; |
898 | } | |
899 | else | |
f1e7a2c9 | 900 | new_bitfield_offset = count; |
9a736b6b | 901 | } |
39bec121 | 902 | else |
9a736b6b NC |
903 | { |
904 | field_align = 0; | |
905 | new_bitfield_offset = current_stag->current_bitfield_offset + count; | |
906 | } | |
39bec121 TW |
907 | break; |
908 | default: | |
909 | as_bad (_("Unrecognized field type '%c'"), type); | |
910 | ignore_rest_of_line (); | |
911 | return; | |
912 | } | |
913 | ||
914 | if (field_align) | |
915 | { | |
d0313fb7 | 916 | /* Align to the actual starting position of the field. */ |
39bec121 TW |
917 | current_stag->current_bitfield_offset = 0; |
918 | ++abs_section_offset; | |
919 | } | |
d0313fb7 | 920 | /* Align to longword boundary. */ |
39bec121 TW |
921 | if (longword_align && (abs_section_offset & 0x1)) |
922 | ++abs_section_offset; | |
923 | ||
924 | if (line_label == NULL) | |
925 | { | |
926 | static int fieldno = 0; | |
927 | char fake[] = ".fake_fieldNNNNN"; | |
f1e7a2c9 | 928 | |
39bec121 | 929 | sprintf (fake, ".fake_field%d", fieldno++); |
1aea3bb8 | 930 | stag_add_field (current_stag, fake, |
9a736b6b NC |
931 | abs_section_offset - S_GET_VALUE (current_stag->sym), |
932 | NULL); | |
39bec121 TW |
933 | } |
934 | else | |
935 | { | |
936 | char label[strlen (S_GET_NAME (line_label) + 1)]; | |
f1e7a2c9 | 937 | |
39bec121 | 938 | strcpy (label, S_GET_NAME (line_label)); |
1aea3bb8 | 939 | stag_add_field (current_stag, label, |
9a736b6b NC |
940 | abs_section_offset - S_GET_VALUE (current_stag->sym), |
941 | NULL); | |
39bec121 TW |
942 | } |
943 | ||
944 | if (current_stag->is_union) | |
945 | { | |
d0313fb7 | 946 | /* Note we treat the element as if it were an array of COUNT. */ |
1aea3bb8 | 947 | if (current_stag->size < (unsigned) size * count) |
9a736b6b | 948 | current_stag->size = size * count; |
39bec121 TW |
949 | } |
950 | else | |
951 | { | |
1aea3bb8 | 952 | abs_section_offset += (unsigned) size * count; |
39bec121 TW |
953 | current_stag->current_bitfield_offset = new_bitfield_offset; |
954 | } | |
955 | line_label = NULL; | |
956 | } | |
957 | ||
d0313fb7 | 958 | /* Handle .byte, .word. .int, .long and all variants. */ |
9a736b6b | 959 | |
1aea3bb8 | 960 | static void |
5a49b8ac | 961 | tic54x_cons (int type) |
39bec121 | 962 | { |
f1e7a2c9 | 963 | unsigned int c; |
39bec121 TW |
964 | int octets; |
965 | ||
d0313fb7 | 966 | /* If we're within a .struct construct, don't actually allocate space. */ |
39bec121 TW |
967 | if (current_stag != NULL) |
968 | { | |
969 | tic54x_struct_field (type); | |
970 | return; | |
971 | } | |
972 | ||
973 | #ifdef md_flush_pending_output | |
974 | md_flush_pending_output (); | |
975 | #endif | |
976 | ||
977 | generate_lineno_debug (); | |
978 | ||
d0313fb7 | 979 | /* Align long words to long word boundaries (4 octets). */ |
39bec121 TW |
980 | if (type == 'l' || type == 'L') |
981 | { | |
982 | frag_align (2, 0, 2); | |
d0313fb7 | 983 | /* If there's a label, assign it to the first allocated word. */ |
39bec121 | 984 | if (line_label != NULL) |
9a736b6b NC |
985 | { |
986 | symbol_set_frag (line_label, frag_now); | |
987 | S_SET_VALUE (line_label, frag_now_fix ()); | |
988 | } | |
39bec121 TW |
989 | } |
990 | ||
991 | switch (type) | |
992 | { | |
993 | case 'l': | |
994 | case 'L': | |
995 | case 'x': | |
996 | octets = 4; | |
997 | break; | |
998 | case 'b': | |
999 | case 'B': | |
1000 | case 'c': | |
1001 | case 'C': | |
1002 | octets = 1; | |
1003 | break; | |
1004 | default: | |
1005 | octets = 2; | |
1006 | break; | |
1007 | } | |
1008 | ||
1009 | do | |
1010 | { | |
1011 | if (*input_line_pointer == '"') | |
1012 | { | |
1013 | input_line_pointer++; | |
1014 | while (is_a_char (c = next_char_of_string ())) | |
1015 | tic54x_emit_char (c); | |
1016 | know (input_line_pointer[-1] == '\"'); | |
1017 | } | |
1018 | else | |
1019 | { | |
91d6fa6a | 1020 | expressionS expn; |
39bec121 | 1021 | |
91d6fa6a NC |
1022 | input_line_pointer = parse_expression (input_line_pointer, &expn); |
1023 | if (expn.X_op == O_constant) | |
39bec121 | 1024 | { |
91d6fa6a | 1025 | offsetT value = expn.X_add_number; |
9a736b6b | 1026 | /* Truncate overflows. */ |
39bec121 TW |
1027 | switch (octets) |
1028 | { | |
1029 | case 1: | |
9a736b6b NC |
1030 | if ((value > 0 && value > 0xFF) |
1031 | || (value < 0 && value < - 0x100)) | |
20203fb9 | 1032 | as_warn (_("Overflow in expression, truncated to 8 bits")); |
39bec121 TW |
1033 | break; |
1034 | case 2: | |
9a736b6b NC |
1035 | if ((value > 0 && value > 0xFFFF) |
1036 | || (value < 0 && value < - 0x10000)) | |
20203fb9 | 1037 | as_warn (_("Overflow in expression, truncated to 16 bits")); |
39bec121 TW |
1038 | break; |
1039 | } | |
1040 | } | |
91d6fa6a | 1041 | if (expn.X_op != O_constant && octets < 2) |
9a736b6b NC |
1042 | { |
1043 | /* Disallow .byte with a non constant expression that will | |
1044 | require relocation. */ | |
1045 | as_bad (_("Relocatable values require at least WORD storage")); | |
1046 | ignore_rest_of_line (); | |
1047 | return; | |
1048 | } | |
1049 | ||
91d6fa6a | 1050 | if (expn.X_op != O_constant |
9a736b6b NC |
1051 | && amode == c_mode |
1052 | && octets == 4) | |
1053 | { | |
1054 | /* FIXME -- at one point TI tools used to output REL16 | |
1055 | relocations, but I don't think the latest tools do at all | |
1056 | The current tools output extended relocations regardless of | |
33b7f697 | 1057 | the addressing mode (I actually think that ".c_mode" is |
9a736b6b NC |
1058 | totally ignored in the latest tools). */ |
1059 | amode = far_mode; | |
1060 | emitting_long = 1; | |
91d6fa6a | 1061 | emit_expr (&expn, 4); |
9a736b6b NC |
1062 | emitting_long = 0; |
1063 | amode = c_mode; | |
1064 | } | |
1065 | else | |
1066 | { | |
1067 | emitting_long = octets == 4; | |
91d6fa6a | 1068 | emit_expr (&expn, (octets == 1) ? 2 : octets); |
9a736b6b NC |
1069 | emitting_long = 0; |
1070 | } | |
39bec121 TW |
1071 | } |
1072 | } | |
1073 | while (*input_line_pointer++ == ','); | |
1074 | ||
1075 | input_line_pointer--; /* Put terminator back into stream. */ | |
1076 | demand_empty_rest_of_line (); | |
1077 | } | |
1078 | ||
1079 | /* .global <symbol>[,...,<symbolN>] | |
1080 | .def <symbol>[,...,<symbolN>] | |
1081 | .ref <symbol>[,...,<symbolN>] | |
1082 | ||
1aea3bb8 | 1083 | These all identify global symbols. |
39bec121 TW |
1084 | |
1085 | .def means the symbol is defined in the current module and can be accessed | |
1086 | by other files. The symbol should be placed in the symbol table. | |
1087 | ||
1088 | .ref means the symbol is used in the current module but defined in another | |
1089 | module. The linker is to resolve this symbol's definition at link time. | |
1090 | ||
1091 | .global should act as a .ref or .def, as needed. | |
1092 | ||
1aea3bb8 | 1093 | global, def and ref all have symbol storage classes of C_EXT. |
39bec121 TW |
1094 | |
1095 | I can't identify any difference in how the "other" c54x assembler treats | |
d0313fb7 | 1096 | these, so we ignore the type here. */ |
9a736b6b | 1097 | |
39bec121 | 1098 | void |
5a49b8ac | 1099 | tic54x_global (int type) |
39bec121 TW |
1100 | { |
1101 | char *name; | |
1102 | int c; | |
1103 | symbolS *symbolP; | |
1104 | ||
1105 | if (type == 'r') | |
9a736b6b | 1106 | as_warn (_("Use of .def/.ref is deprecated. Use .global instead")); |
39bec121 TW |
1107 | |
1108 | ILLEGAL_WITHIN_STRUCT (); | |
1109 | ||
1110 | do | |
1111 | { | |
1112 | name = input_line_pointer; | |
1113 | c = get_symbol_end (); | |
1114 | symbolP = symbol_find_or_make (name); | |
1115 | ||
1116 | *input_line_pointer = c; | |
1117 | S_SET_STORAGE_CLASS (symbolP, C_EXT); | |
1118 | if (c == ',') | |
1119 | { | |
1120 | input_line_pointer++; | |
1aea3bb8 | 1121 | if (is_end_of_line[(int) *input_line_pointer]) |
39bec121 TW |
1122 | c = *input_line_pointer; |
1123 | } | |
1124 | } | |
1125 | while (c == ','); | |
1126 | ||
1127 | demand_empty_rest_of_line (); | |
1128 | } | |
1129 | ||
d0313fb7 | 1130 | /* Remove the symbol from the local label hash lookup. */ |
9a736b6b | 1131 | |
39bec121 | 1132 | static void |
5a49b8ac | 1133 | tic54x_remove_local_label (const char *key, void *value ATTRIBUTE_UNUSED) |
39bec121 | 1134 | { |
5a49b8ac | 1135 | void *elem = hash_delete (local_label_hash[macro_level], key, FALSE); |
39bec121 TW |
1136 | free (elem); |
1137 | } | |
1138 | ||
d0313fb7 | 1139 | /* Reset all local labels. */ |
9a736b6b | 1140 | |
1aea3bb8 | 1141 | static void |
5a49b8ac | 1142 | tic54x_clear_local_labels (int ignored ATTRIBUTE_UNUSED) |
39bec121 TW |
1143 | { |
1144 | hash_traverse (local_label_hash[macro_level], tic54x_remove_local_label); | |
1145 | } | |
1146 | ||
d0313fb7 | 1147 | /* .text |
39bec121 TW |
1148 | .data |
1149 | .sect "section name" | |
1150 | ||
1151 | Initialized section | |
1aea3bb8 | 1152 | make sure local labels get cleared when changing sections |
39bec121 TW |
1153 | |
1154 | ARG is 't' for text, 'd' for data, or '*' for a named section | |
1155 | ||
6e917903 TW |
1156 | For compatibility, '*' sections are SEC_CODE if instructions are |
1157 | encountered, or SEC_DATA if not. | |
1158 | */ | |
9a736b6b | 1159 | |
39bec121 | 1160 | static void |
5a49b8ac | 1161 | tic54x_sect (int arg) |
39bec121 TW |
1162 | { |
1163 | ILLEGAL_WITHIN_STRUCT (); | |
1164 | ||
d0313fb7 | 1165 | /* Local labels are cleared when changing sections. */ |
39bec121 TW |
1166 | tic54x_clear_local_labels (0); |
1167 | ||
1168 | if (arg == 't') | |
1169 | s_text (0); | |
1170 | else if (arg == 'd') | |
1171 | s_data (0); | |
1172 | else | |
1173 | { | |
1174 | char *name = NULL; | |
1175 | int len; | |
f1e7a2c9 | 1176 | |
d0313fb7 | 1177 | /* If there are quotes, remove them. */ |
39bec121 | 1178 | if (*input_line_pointer == '"') |
9a736b6b NC |
1179 | { |
1180 | name = demand_copy_C_string (&len); | |
1181 | demand_empty_rest_of_line (); | |
1182 | name = strcpy (xmalloc (len + 10), name); | |
1183 | } | |
1aea3bb8 | 1184 | else |
9a736b6b NC |
1185 | { |
1186 | int c; | |
1187 | name = input_line_pointer; | |
1188 | c = get_symbol_end (); | |
6e917903 | 1189 | len = strlen(name); |
9a736b6b NC |
1190 | name = strcpy (xmalloc (len + 10), name); |
1191 | *input_line_pointer = c; | |
1192 | demand_empty_rest_of_line (); | |
1193 | } | |
6e917903 | 1194 | /* Make sure all named initialized sections flagged properly. If we |
f1e7a2c9 | 1195 | encounter instructions, we'll flag it with SEC_CODE as well. */ |
39bec121 TW |
1196 | strcat (name, ",\"w\"\n"); |
1197 | input_scrub_insert_line (name); | |
1198 | obj_coff_section (0); | |
1199 | ||
d0313fb7 | 1200 | /* If there was a line label, make sure that it gets assigned the proper |
9a736b6b NC |
1201 | section. This is for compatibility, even though the actual behavior |
1202 | is not explicitly defined. For consistency, we make .sect behave | |
1203 | like .usect, since that is probably what people expect. */ | |
39bec121 | 1204 | if (line_label != NULL) |
9a736b6b NC |
1205 | { |
1206 | S_SET_SEGMENT (line_label, now_seg); | |
1207 | symbol_set_frag (line_label, frag_now); | |
1208 | S_SET_VALUE (line_label, frag_now_fix ()); | |
1209 | if (S_GET_STORAGE_CLASS (line_label) != C_EXT) | |
1210 | S_SET_STORAGE_CLASS (line_label, C_LABEL); | |
1211 | } | |
39bec121 TW |
1212 | } |
1213 | } | |
1214 | ||
1aea3bb8 | 1215 | /* [symbol] .space space_in_bits |
39bec121 | 1216 | [symbol] .bes space_in_bits |
1aea3bb8 | 1217 | BES puts the symbol at the *last* word allocated |
39bec121 | 1218 | |
d0313fb7 | 1219 | cribbed from s_space. */ |
9a736b6b | 1220 | |
39bec121 | 1221 | static void |
5a49b8ac | 1222 | tic54x_space (int arg) |
39bec121 | 1223 | { |
91d6fa6a | 1224 | expressionS expn; |
39bec121 TW |
1225 | char *p = 0; |
1226 | int octets = 0; | |
1227 | long words; | |
1228 | int bits_per_byte = (OCTETS_PER_BYTE * 8); | |
1229 | int bit_offset = 0; | |
1230 | symbolS *label = line_label; | |
1231 | int bes = arg; | |
1232 | ||
1233 | ILLEGAL_WITHIN_STRUCT (); | |
1234 | ||
1235 | #ifdef md_flush_pending_output | |
1236 | md_flush_pending_output (); | |
1237 | #endif | |
1238 | ||
d0313fb7 | 1239 | /* Read the bit count. */ |
91d6fa6a | 1240 | expression (&expn); |
39bec121 | 1241 | |
d0313fb7 | 1242 | /* Some expressions are unresolvable until later in the assembly pass; |
39bec121 | 1243 | postpone until relaxation/fixup. we also have to postpone if a previous |
d0313fb7 | 1244 | partial allocation has not been completed yet. */ |
91d6fa6a | 1245 | if (expn.X_op != O_constant || frag_bit_offset (frag_now, now_seg) == -1) |
39bec121 TW |
1246 | { |
1247 | struct bit_info *bi = xmalloc (sizeof (struct bit_info)); | |
39bec121 TW |
1248 | |
1249 | bi->seg = now_seg; | |
1250 | bi->type = bes; | |
1251 | bi->sym = label; | |
1aea3bb8 | 1252 | p = frag_var (rs_machine_dependent, |
9a736b6b | 1253 | 65536 * 2, 1, (relax_substateT) 0, |
91d6fa6a | 1254 | make_expr_symbol (&expn), (offsetT) 0, |
9a736b6b | 1255 | (char *) bi); |
39bec121 | 1256 | if (p) |
9a736b6b | 1257 | *p = 0; |
39bec121 TW |
1258 | |
1259 | return; | |
1260 | } | |
1261 | ||
d0313fb7 NC |
1262 | /* Reduce the required size by any bit offsets currently left over |
1263 | from a previous .space/.bes/.field directive. */ | |
39bec121 TW |
1264 | bit_offset = frag_now->tc_frag_data; |
1265 | if (bit_offset != 0 && bit_offset < 16) | |
1266 | { | |
1267 | int spare_bits = bits_per_byte - bit_offset; | |
f1e7a2c9 | 1268 | |
91d6fa6a | 1269 | if (spare_bits >= expn.X_add_number) |
9a736b6b NC |
1270 | { |
1271 | /* Don't have to do anything; sufficient bits have already been | |
1272 | allocated; just point the label to the right place. */ | |
1273 | if (label != NULL) | |
1274 | { | |
1275 | symbol_set_frag (label, frag_now); | |
1276 | S_SET_VALUE (label, frag_now_fix () - 1); | |
1277 | label = NULL; | |
1278 | } | |
91d6fa6a | 1279 | frag_now->tc_frag_data += expn.X_add_number; |
9a736b6b NC |
1280 | goto getout; |
1281 | } | |
91d6fa6a | 1282 | expn.X_add_number -= spare_bits; |
d0313fb7 | 1283 | /* Set the label to point to the first word allocated, which in this |
9a736b6b | 1284 | case is the previous word, which was only partially filled. */ |
39bec121 | 1285 | if (!bes && label != NULL) |
9a736b6b NC |
1286 | { |
1287 | symbol_set_frag (label, frag_now); | |
1288 | S_SET_VALUE (label, frag_now_fix () - 1); | |
1289 | label = NULL; | |
1290 | } | |
39bec121 | 1291 | } |
d0313fb7 | 1292 | /* Convert bits to bytes/words and octets, rounding up. */ |
91d6fa6a | 1293 | words = ((expn.X_add_number + bits_per_byte - 1) / bits_per_byte); |
d0313fb7 | 1294 | /* How many do we have left over? */ |
91d6fa6a | 1295 | bit_offset = expn.X_add_number % bits_per_byte; |
39bec121 TW |
1296 | octets = words * OCTETS_PER_BYTE; |
1297 | if (octets < 0) | |
1298 | { | |
1299 | as_warn (_(".space/.bes repeat count is negative, ignored")); | |
1300 | goto getout; | |
1301 | } | |
1302 | else if (octets == 0) | |
1303 | { | |
1304 | as_warn (_(".space/.bes repeat count is zero, ignored")); | |
1305 | goto getout; | |
1306 | } | |
1aea3bb8 | 1307 | |
39bec121 TW |
1308 | /* If we are in the absolute section, just bump the offset. */ |
1309 | if (now_seg == absolute_section) | |
1310 | { | |
1311 | abs_section_offset += words; | |
1312 | if (bes && label != NULL) | |
9a736b6b | 1313 | S_SET_VALUE (label, abs_section_offset - 1); |
39bec121 TW |
1314 | frag_now->tc_frag_data = bit_offset; |
1315 | goto getout; | |
1316 | } | |
1aea3bb8 | 1317 | |
39bec121 | 1318 | if (!need_pass_2) |
1aea3bb8 | 1319 | p = frag_var (rs_fill, 1, 1, |
9a736b6b NC |
1320 | (relax_substateT) 0, (symbolS *) 0, |
1321 | (offsetT) octets, (char *) 0); | |
39bec121 | 1322 | |
d0313fb7 | 1323 | /* Make note of how many bits of this word we've allocated so far. */ |
39bec121 TW |
1324 | frag_now->tc_frag_data = bit_offset; |
1325 | ||
d0313fb7 | 1326 | /* .bes puts label at *last* word allocated. */ |
39bec121 TW |
1327 | if (bes && label != NULL) |
1328 | { | |
1329 | symbol_set_frag (label, frag_now); | |
1aea3bb8 | 1330 | S_SET_VALUE (label, frag_now_fix () - 1); |
39bec121 | 1331 | } |
1aea3bb8 | 1332 | |
39bec121 TW |
1333 | if (p) |
1334 | *p = 0; | |
1335 | ||
1336 | getout: | |
1337 | ||
1338 | demand_empty_rest_of_line (); | |
1339 | } | |
1340 | ||
1aea3bb8 | 1341 | /* [symbol] .usect "section-name", size-in-words |
9a736b6b | 1342 | [, [blocking-flag] [, alignment-flag]] |
39bec121 | 1343 | |
33b7f697 | 1344 | Uninitialized section. |
39bec121 TW |
1345 | Non-zero blocking means that if the section would cross a page (128-word) |
1346 | boundary, it will be page-aligned. | |
1347 | Non-zero alignment aligns on a longword boundary. | |
1348 | ||
d0313fb7 | 1349 | Has no effect on the current section. */ |
9a736b6b | 1350 | |
1aea3bb8 | 1351 | static void |
5a49b8ac | 1352 | tic54x_usect (int x ATTRIBUTE_UNUSED) |
39bec121 TW |
1353 | { |
1354 | char c; | |
1355 | char *name; | |
1356 | char *section_name; | |
1357 | char *p; | |
1358 | segT seg; | |
1359 | int size, blocking_flag, alignment_flag; | |
1360 | segT current_seg; | |
1361 | subsegT current_subseg; | |
1362 | flagword flags; | |
1363 | ||
1364 | ILLEGAL_WITHIN_STRUCT (); | |
1365 | ||
9a736b6b NC |
1366 | current_seg = now_seg; /* Save current seg. */ |
1367 | current_subseg = now_subseg; /* Save current subseg. */ | |
39bec121 TW |
1368 | |
1369 | if (*input_line_pointer == '"') | |
1370 | input_line_pointer++; | |
1371 | section_name = input_line_pointer; | |
1372 | c = get_symbol_end (); /* Get terminator. */ | |
1373 | input_line_pointer++; /* Skip null symbol terminator. */ | |
1374 | name = xmalloc (input_line_pointer - section_name + 1); | |
1375 | strcpy (name, section_name); | |
1376 | ||
1377 | if (*input_line_pointer == ',') | |
1378 | ++input_line_pointer; | |
1379 | else if (c != ',') | |
1380 | { | |
1381 | as_bad (_("Missing size argument")); | |
1382 | ignore_rest_of_line (); | |
1383 | return; | |
1384 | } | |
1385 | ||
1386 | size = get_absolute_expression (); | |
1387 | ||
d0313fb7 | 1388 | /* Read a possibly present third argument (blocking flag). */ |
39bec121 TW |
1389 | if (*input_line_pointer == ',') |
1390 | { | |
1391 | ++input_line_pointer; | |
1392 | if (*input_line_pointer != ',') | |
9a736b6b | 1393 | blocking_flag = get_absolute_expression (); |
39bec121 | 1394 | else |
9a736b6b | 1395 | blocking_flag = 0; |
39bec121 | 1396 | |
d0313fb7 | 1397 | /* Read a possibly present fourth argument (alignment flag). */ |
39bec121 | 1398 | if (*input_line_pointer == ',') |
9a736b6b NC |
1399 | { |
1400 | ++input_line_pointer; | |
1401 | alignment_flag = get_absolute_expression (); | |
1402 | } | |
39bec121 | 1403 | else |
9a736b6b | 1404 | alignment_flag = 0; |
39bec121 TW |
1405 | } |
1406 | else | |
1407 | blocking_flag = alignment_flag = 0; | |
1408 | ||
1409 | seg = subseg_new (name, 0); | |
1410 | flags = bfd_get_section_flags (stdoutput, seg) | SEC_ALLOC; | |
1411 | ||
1412 | if (alignment_flag) | |
1413 | { | |
d0313fb7 | 1414 | /* s_align eats end of line; restore it. */ |
39bec121 TW |
1415 | s_align_bytes (4); |
1416 | --input_line_pointer; | |
1417 | } | |
1418 | ||
1419 | if (line_label != NULL) | |
1420 | { | |
1421 | S_SET_SEGMENT (line_label, seg); | |
1422 | symbol_set_frag (line_label, frag_now); | |
1423 | S_SET_VALUE (line_label, frag_now_fix ()); | |
9a736b6b | 1424 | /* Set scl to label, since that's what TI does. */ |
39bec121 | 1425 | if (S_GET_STORAGE_CLASS (line_label) != C_EXT) |
9a736b6b | 1426 | S_SET_STORAGE_CLASS (line_label, C_LABEL); |
39bec121 TW |
1427 | } |
1428 | ||
1429 | seg_info (seg)->bss = 1; /* Uninitialized data. */ | |
1430 | ||
1aea3bb8 | 1431 | p = frag_var (rs_fill, 1, 1, |
9a736b6b NC |
1432 | (relax_substateT) 0, (symbolS *) line_label, |
1433 | size * OCTETS_PER_BYTE, (char *) 0); | |
39bec121 TW |
1434 | *p = 0; |
1435 | ||
1436 | if (blocking_flag) | |
ebe372c1 | 1437 | flags |= SEC_TIC54X_BLOCK; |
39bec121 TW |
1438 | |
1439 | if (!bfd_set_section_flags (stdoutput, seg, flags)) | |
20203fb9 | 1440 | as_warn (_("Error setting flags for \"%s\": %s"), name, |
39bec121 TW |
1441 | bfd_errmsg (bfd_get_error ())); |
1442 | ||
1443 | subseg_set (current_seg, current_subseg); /* Restore current seg. */ | |
1444 | demand_empty_rest_of_line (); | |
1aea3bb8 | 1445 | } |
39bec121 TW |
1446 | |
1447 | static enum cpu_version | |
5a49b8ac | 1448 | lookup_version (const char *ver) |
39bec121 TW |
1449 | { |
1450 | enum cpu_version version = VNONE; | |
1aea3bb8 | 1451 | |
39bec121 TW |
1452 | if (ver[0] == '5' && ver[1] == '4') |
1453 | { | |
9a736b6b NC |
1454 | if (strlen (ver) == 3 |
1455 | && (ver[2] == '1' || ver[2] == '2' || ver[2] == '3' | |
1456 | || ver[2] == '5' || ver[2] == '8' || ver[2] == '9')) | |
1457 | version = ver[2] - '0'; | |
1458 | else if (strlen (ver) == 5 | |
3882b010 L |
1459 | && TOUPPER (ver[3]) == 'L' |
1460 | && TOUPPER (ver[4]) == 'P' | |
9a736b6b NC |
1461 | && (ver[2] == '5' || ver[2] == '6')) |
1462 | version = ver[2] - '0' + 10; | |
39bec121 TW |
1463 | } |
1464 | ||
1465 | return version; | |
1466 | } | |
1467 | ||
1468 | static void | |
5a49b8ac | 1469 | set_cpu (enum cpu_version version) |
39bec121 TW |
1470 | { |
1471 | cpu = version; | |
1472 | if (version == V545LP || version == V546LP) | |
1473 | { | |
1474 | symbolS *symbolP = symbol_new ("__allow_lp", absolute_section, | |
9a736b6b | 1475 | (valueT) 1, &zero_address_frag); |
39bec121 TW |
1476 | SF_SET_LOCAL (symbolP); |
1477 | symbol_table_insert (symbolP); | |
1478 | } | |
1479 | } | |
1480 | ||
1aea3bb8 | 1481 | /* .version cpu-version |
39bec121 TW |
1482 | cpu-version may be one of the following: |
1483 | 541 | |
1484 | 542 | |
1485 | 543 | |
1486 | 545 | |
1487 | 545LP | |
1488 | 546LP | |
1489 | 548 | |
1490 | 549 | |
1491 | ||
d0313fb7 | 1492 | This is for compatibility only. It currently has no affect on assembly. */ |
39bec121 | 1493 | static int cpu_needs_set = 1; |
d0313fb7 | 1494 | |
1aea3bb8 | 1495 | static void |
5a49b8ac | 1496 | tic54x_version (int x ATTRIBUTE_UNUSED) |
39bec121 TW |
1497 | { |
1498 | enum cpu_version version = VNONE; | |
1499 | enum cpu_version old_version = cpu; | |
1500 | int c; | |
1501 | char *ver; | |
1502 | ||
1503 | ILLEGAL_WITHIN_STRUCT (); | |
1504 | ||
1505 | SKIP_WHITESPACE (); | |
1506 | ver = input_line_pointer; | |
1aea3bb8 | 1507 | while (!is_end_of_line[(int) *input_line_pointer]) |
39bec121 TW |
1508 | ++input_line_pointer; |
1509 | c = *input_line_pointer; | |
1510 | *input_line_pointer = 0; | |
1aea3bb8 | 1511 | |
39bec121 TW |
1512 | version = lookup_version (ver); |
1513 | ||
1514 | if (cpu != VNONE && cpu != version) | |
1515 | as_warn (_("CPU version has already been set")); | |
1516 | ||
1517 | if (version == VNONE) | |
1518 | { | |
1519 | as_bad (_("Unrecognized version '%s'"), ver); | |
1520 | ignore_rest_of_line (); | |
1521 | return; | |
1522 | } | |
1523 | else if (assembly_begun && version != old_version) | |
1524 | { | |
1525 | as_bad (_("Changing of CPU version on the fly not supported")); | |
1526 | ignore_rest_of_line (); | |
1527 | return; | |
1528 | } | |
1529 | ||
1530 | set_cpu (version); | |
1531 | ||
1532 | *input_line_pointer = c; | |
1533 | demand_empty_rest_of_line (); | |
1534 | } | |
1535 | ||
d0313fb7 | 1536 | /* 'f' = float, 'x' = xfloat, 'd' = double, 'l' = ldouble. */ |
9a736b6b | 1537 | |
39bec121 | 1538 | static void |
5a49b8ac | 1539 | tic54x_float_cons (int type) |
39bec121 TW |
1540 | { |
1541 | if (current_stag != 0) | |
d0313fb7 | 1542 | tic54x_struct_field ('f'); |
39bec121 TW |
1543 | |
1544 | #ifdef md_flush_pending_output | |
1545 | md_flush_pending_output (); | |
1546 | #endif | |
1aea3bb8 | 1547 | |
d0313fb7 | 1548 | /* Align to long word boundary (4 octets) unless it's ".xfloat". */ |
39bec121 TW |
1549 | if (type != 'x') |
1550 | { | |
1551 | frag_align (2, 0, 2); | |
d0313fb7 | 1552 | /* If there's a label, assign it to the first allocated word. */ |
39bec121 | 1553 | if (line_label != NULL) |
9a736b6b NC |
1554 | { |
1555 | symbol_set_frag (line_label, frag_now); | |
1556 | S_SET_VALUE (line_label, frag_now_fix ()); | |
1557 | } | |
39bec121 TW |
1558 | } |
1559 | ||
1560 | float_cons ('f'); | |
1561 | } | |
1562 | ||
1aea3bb8 | 1563 | /* The argument is capitalized if it should be zero-terminated |
39bec121 | 1564 | 's' is normal string with upper 8-bits zero-filled, 'p' is packed. |
5d6255fe | 1565 | Code copied from stringer, and slightly modified so that strings are packed |
d0313fb7 | 1566 | and encoded into the correct octets. */ |
9a736b6b | 1567 | |
39bec121 | 1568 | static void |
5a49b8ac | 1569 | tic54x_stringer (int type) |
39bec121 | 1570 | { |
f1e7a2c9 | 1571 | unsigned int c; |
39bec121 TW |
1572 | int append_zero = type == 'S' || type == 'P'; |
1573 | int packed = type == 'p' || type == 'P'; | |
d0313fb7 | 1574 | int last_char = -1; /* Packed strings need two bytes at a time to encode. */ |
39bec121 TW |
1575 | |
1576 | if (current_stag != NULL) | |
1577 | { | |
1578 | tic54x_struct_field ('*'); | |
1579 | return; | |
1580 | } | |
1581 | ||
1582 | #ifdef md_flush_pending_output | |
1583 | md_flush_pending_output (); | |
1584 | #endif | |
1585 | ||
1dab94dd | 1586 | c = ','; /* Do loop. */ |
39bec121 TW |
1587 | while (c == ',') |
1588 | { | |
1589 | SKIP_WHITESPACE (); | |
1590 | switch (*input_line_pointer) | |
1591 | { | |
9a736b6b NC |
1592 | default: |
1593 | { | |
1594 | unsigned short value = get_absolute_expression (); | |
1595 | FRAG_APPEND_1_CHAR ( value & 0xFF); | |
1596 | FRAG_APPEND_1_CHAR ((value >> 8) & 0xFF); | |
1597 | break; | |
1598 | } | |
39bec121 | 1599 | case '\"': |
9a736b6b | 1600 | ++input_line_pointer; /* -> 1st char of string. */ |
39bec121 TW |
1601 | while (is_a_char (c = next_char_of_string ())) |
1602 | { | |
9a736b6b NC |
1603 | if (!packed) |
1604 | { | |
1605 | FRAG_APPEND_1_CHAR (c); | |
1606 | FRAG_APPEND_1_CHAR (0); | |
1607 | } | |
1608 | else | |
1609 | { | |
1610 | /* Packed strings are filled MS octet first. */ | |
1611 | if (last_char == -1) | |
1612 | last_char = c; | |
1613 | else | |
1614 | { | |
1615 | FRAG_APPEND_1_CHAR (c); | |
1616 | FRAG_APPEND_1_CHAR (last_char); | |
1617 | last_char = -1; | |
1618 | } | |
1619 | } | |
39bec121 TW |
1620 | } |
1621 | if (append_zero) | |
9a736b6b NC |
1622 | { |
1623 | if (packed && last_char != -1) | |
1624 | { | |
1625 | FRAG_APPEND_1_CHAR (0); | |
1626 | FRAG_APPEND_1_CHAR (last_char); | |
1627 | last_char = -1; | |
1628 | } | |
1629 | else | |
1630 | { | |
1631 | FRAG_APPEND_1_CHAR (0); | |
1632 | FRAG_APPEND_1_CHAR (0); | |
1633 | } | |
1634 | } | |
39bec121 TW |
1635 | know (input_line_pointer[-1] == '\"'); |
1636 | break; | |
1637 | } | |
1638 | SKIP_WHITESPACE (); | |
1639 | c = *input_line_pointer; | |
1640 | if (!is_end_of_line[c]) | |
9a736b6b | 1641 | ++input_line_pointer; |
39bec121 TW |
1642 | } |
1643 | ||
d0313fb7 | 1644 | /* Finish up any leftover packed string. */ |
39bec121 TW |
1645 | if (packed && last_char != -1) |
1646 | { | |
1647 | FRAG_APPEND_1_CHAR (0); | |
1648 | FRAG_APPEND_1_CHAR (last_char); | |
1649 | } | |
1650 | demand_empty_rest_of_line (); | |
1651 | } | |
1652 | ||
1653 | static void | |
5a49b8ac | 1654 | tic54x_p2align (int arg ATTRIBUTE_UNUSED) |
39bec121 TW |
1655 | { |
1656 | as_bad (_("p2align not supported on this target")); | |
1657 | } | |
1658 | ||
1659 | static void | |
5a49b8ac | 1660 | tic54x_align_words (int arg) |
39bec121 | 1661 | { |
d0313fb7 | 1662 | /* Only ".align" with no argument is allowed within .struct/.union. */ |
39bec121 TW |
1663 | int count = arg; |
1664 | ||
1aea3bb8 | 1665 | if (!is_end_of_line[(int) *input_line_pointer]) |
39bec121 TW |
1666 | { |
1667 | if (arg == 2) | |
9a736b6b | 1668 | as_warn (_("Argument to .even ignored")); |
39bec121 | 1669 | else |
9a736b6b | 1670 | count = get_absolute_expression (); |
39bec121 TW |
1671 | } |
1672 | ||
1673 | if (current_stag != NULL && arg == 128) | |
1674 | { | |
1675 | if (current_stag->current_bitfield_offset != 0) | |
9a736b6b NC |
1676 | { |
1677 | current_stag->current_bitfield_offset = 0; | |
1678 | ++abs_section_offset; | |
1679 | } | |
39bec121 TW |
1680 | demand_empty_rest_of_line (); |
1681 | return; | |
1682 | } | |
1683 | ||
1684 | ILLEGAL_WITHIN_STRUCT (); | |
1685 | ||
1686 | s_align_bytes (count << 1); | |
1687 | } | |
1688 | ||
d0313fb7 | 1689 | /* Initialize multiple-bit fields withing a single word of memory. */ |
9a736b6b | 1690 | |
39bec121 | 1691 | static void |
5a49b8ac | 1692 | tic54x_field (int ignore ATTRIBUTE_UNUSED) |
39bec121 | 1693 | { |
91d6fa6a | 1694 | expressionS expn; |
39bec121 TW |
1695 | int size = 16; |
1696 | char *p; | |
1697 | valueT value; | |
1698 | symbolS *label = line_label; | |
1699 | ||
1700 | if (current_stag != NULL) | |
1701 | { | |
1702 | tic54x_struct_field ('.'); | |
1703 | return; | |
1704 | } | |
1705 | ||
91d6fa6a | 1706 | input_line_pointer = parse_expression (input_line_pointer, &expn); |
39bec121 TW |
1707 | |
1708 | if (*input_line_pointer == ',') | |
1709 | { | |
1710 | ++input_line_pointer; | |
1711 | size = get_absolute_expression (); | |
1712 | if (size < 1 || size > 32) | |
9a736b6b NC |
1713 | { |
1714 | as_bad (_("Invalid field size, must be from 1 to 32")); | |
1715 | ignore_rest_of_line (); | |
1716 | return; | |
1717 | } | |
39bec121 TW |
1718 | } |
1719 | ||
d0313fb7 | 1720 | /* Truncate values to the field width. */ |
91d6fa6a | 1721 | if (expn.X_op != O_constant) |
39bec121 | 1722 | { |
9a736b6b NC |
1723 | /* If the expression value is relocatable, the field size *must* |
1724 | be 16. */ | |
39bec121 | 1725 | if (size != 16) |
9a736b6b NC |
1726 | { |
1727 | as_bad (_("field size must be 16 when value is relocatable")); | |
1728 | ignore_rest_of_line (); | |
1729 | return; | |
1730 | } | |
39bec121 TW |
1731 | |
1732 | frag_now->tc_frag_data = 0; | |
91d6fa6a | 1733 | emit_expr (&expn, 2); |
39bec121 TW |
1734 | } |
1735 | else | |
1736 | { | |
1737 | unsigned long fmask = (size == 32) ? 0xFFFFFFFF : (1ul << size) - 1; | |
f1e7a2c9 | 1738 | |
91d6fa6a NC |
1739 | value = expn.X_add_number; |
1740 | expn.X_add_number &= fmask; | |
1741 | if (value != (valueT) expn.X_add_number) | |
9a736b6b | 1742 | as_warn (_("field value truncated")); |
91d6fa6a | 1743 | value = expn.X_add_number; |
d0313fb7 | 1744 | /* Bits are stored MS first. */ |
39bec121 | 1745 | while (size >= 16) |
9a736b6b NC |
1746 | { |
1747 | frag_now->tc_frag_data = 0; | |
1748 | p = frag_more (2); | |
1749 | md_number_to_chars (p, (value >> (size - 16)) & 0xFFFF, 2); | |
1750 | size -= 16; | |
1751 | } | |
39bec121 | 1752 | if (size > 0) |
9a736b6b NC |
1753 | { |
1754 | int bit_offset = frag_bit_offset (frag_now, now_seg); | |
f1e7a2c9 | 1755 | |
9a736b6b NC |
1756 | fragS *alloc_frag = bit_offset_frag (frag_now, now_seg); |
1757 | if (bit_offset == -1) | |
1758 | { | |
1759 | struct bit_info *bi = xmalloc (sizeof (struct bit_info)); | |
1760 | /* We don't know the previous offset at this time, so store the | |
1761 | info we need and figure it out later. */ | |
1762 | expressionS size_exp; | |
f1e7a2c9 | 1763 | |
9a736b6b NC |
1764 | size_exp.X_op = O_constant; |
1765 | size_exp.X_add_number = size; | |
1766 | bi->seg = now_seg; | |
1767 | bi->type = TYPE_FIELD; | |
1768 | bi->value = value; | |
1769 | p = frag_var (rs_machine_dependent, | |
1770 | 4, 1, (relax_substateT) 0, | |
1771 | make_expr_symbol (&size_exp), (offsetT) 0, | |
1772 | (char *) bi); | |
1773 | goto getout; | |
1774 | } | |
1775 | else if (bit_offset == 0 || bit_offset + size > 16) | |
1776 | { | |
1777 | /* Align a new field. */ | |
1778 | p = frag_more (2); | |
1779 | frag_now->tc_frag_data = 0; | |
1780 | alloc_frag = frag_now; | |
1781 | } | |
1782 | else | |
1783 | { | |
1784 | /* Put the new value entirely within the existing one. */ | |
1785 | p = alloc_frag == frag_now ? | |
1786 | frag_now->fr_literal + frag_now_fix_octets () - 2 : | |
1787 | alloc_frag->fr_literal; | |
1788 | if (label != NULL) | |
1789 | { | |
1790 | symbol_set_frag (label, alloc_frag); | |
1791 | if (alloc_frag == frag_now) | |
1792 | S_SET_VALUE (label, frag_now_fix () - 1); | |
1793 | label = NULL; | |
1794 | } | |
1795 | } | |
1796 | value <<= 16 - alloc_frag->tc_frag_data - size; | |
1797 | ||
1798 | /* OR in existing value. */ | |
1799 | if (alloc_frag->tc_frag_data) | |
1800 | value |= ((unsigned short) p[1] << 8) | p[0]; | |
1801 | md_number_to_chars (p, value, 2); | |
1802 | alloc_frag->tc_frag_data += size; | |
1803 | if (alloc_frag->tc_frag_data == 16) | |
1804 | alloc_frag->tc_frag_data = 0; | |
1805 | } | |
39bec121 TW |
1806 | } |
1807 | getout: | |
1808 | demand_empty_rest_of_line (); | |
1809 | } | |
1810 | ||
1811 | /* Ideally, we want to check SEC_LOAD and SEC_HAS_CONTENTS, but those aren't | |
d0313fb7 | 1812 | available yet. seg_info ()->bss is the next best thing. */ |
9a736b6b | 1813 | |
39bec121 | 1814 | static int |
5a49b8ac | 1815 | tic54x_initialized_section (segT seg) |
39bec121 TW |
1816 | { |
1817 | return !seg_info (seg)->bss; | |
1818 | } | |
1819 | ||
1aea3bb8 | 1820 | /* .clink ["section name"] |
39bec121 TW |
1821 | |
1822 | Marks the section as conditionally linked (link only if contents are | |
1823 | referenced elsewhere. | |
1824 | Without a name, refers to the current initialized section. | |
d0313fb7 | 1825 | Name is required for uninitialized sections. */ |
9a736b6b | 1826 | |
39bec121 | 1827 | static void |
5a49b8ac | 1828 | tic54x_clink (int ignored ATTRIBUTE_UNUSED) |
39bec121 TW |
1829 | { |
1830 | segT seg = now_seg; | |
1831 | ||
1832 | ILLEGAL_WITHIN_STRUCT (); | |
1833 | ||
1834 | if (*input_line_pointer == '\"') | |
1835 | { | |
1836 | char *section_name = ++input_line_pointer; | |
1837 | char *name; | |
f1e7a2c9 | 1838 | |
39bec121 | 1839 | while (is_a_char (next_char_of_string ())) |
9a736b6b | 1840 | ; |
39bec121 TW |
1841 | know (input_line_pointer[-1] == '\"'); |
1842 | input_line_pointer[-1] = 0; | |
1843 | name = xmalloc (input_line_pointer - section_name + 1); | |
1844 | strcpy (name, section_name); | |
1845 | ||
1846 | seg = bfd_get_section_by_name (stdoutput, name); | |
1847 | if (seg == NULL) | |
9a736b6b NC |
1848 | { |
1849 | as_bad (_("Unrecognized section '%s'"), section_name); | |
1850 | ignore_rest_of_line (); | |
1851 | return; | |
1852 | } | |
39bec121 TW |
1853 | } |
1854 | else | |
1855 | { | |
1856 | if (!tic54x_initialized_section (seg)) | |
9a736b6b NC |
1857 | { |
1858 | as_bad (_("Current section is unitialized, " | |
1859 | "section name required for .clink")); | |
1860 | ignore_rest_of_line (); | |
1861 | return; | |
1862 | } | |
39bec121 TW |
1863 | } |
1864 | ||
ebe372c1 | 1865 | seg->flags |= SEC_TIC54X_CLINK; |
39bec121 TW |
1866 | |
1867 | demand_empty_rest_of_line (); | |
1868 | } | |
1869 | ||
d0313fb7 | 1870 | /* Change the default include directory to be the current source file's |
39bec121 | 1871 | directory, instead of the current working directory. If DOT is non-zero, |
d0313fb7 | 1872 | set to "." instead. */ |
9a736b6b | 1873 | |
39bec121 | 1874 | static void |
5a49b8ac | 1875 | tic54x_set_default_include (int dot) |
39bec121 TW |
1876 | { |
1877 | char *dir = "."; | |
1878 | char *tmp = NULL; | |
1aea3bb8 | 1879 | |
39bec121 TW |
1880 | if (!dot) |
1881 | { | |
1882 | char *curfile; | |
1883 | unsigned lineno; | |
1aea3bb8 | 1884 | |
39bec121 | 1885 | as_where (&curfile, &lineno); |
1aea3bb8 | 1886 | dir = strcpy (xmalloc (strlen (curfile) + 1), curfile); |
39bec121 TW |
1887 | tmp = strrchr (dir, '/'); |
1888 | } | |
1889 | if (tmp != NULL) | |
1890 | { | |
1891 | int len; | |
f1e7a2c9 | 1892 | |
39bec121 TW |
1893 | *tmp = '\0'; |
1894 | len = strlen (dir); | |
1895 | if (include_dir_count == 0) | |
9a736b6b NC |
1896 | { |
1897 | include_dirs = (char **) xmalloc (sizeof (*include_dirs)); | |
1898 | include_dir_count = 1; | |
1899 | } | |
39bec121 TW |
1900 | include_dirs[0] = dir; |
1901 | if (len > include_dir_maxlen) | |
9a736b6b | 1902 | include_dir_maxlen = len; |
39bec121 TW |
1903 | } |
1904 | else if (include_dirs != NULL) | |
1905 | include_dirs[0] = "."; | |
1906 | } | |
1907 | ||
1aea3bb8 | 1908 | /* .include "filename" | filename |
39bec121 TW |
1909 | .copy "filename" | filename |
1910 | ||
1aea3bb8 | 1911 | FIXME 'include' file should be omitted from any output listing, |
39bec121 TW |
1912 | 'copy' should be included in any output listing |
1913 | FIXME -- prevent any included files from changing listing (compat only) | |
1914 | FIXME -- need to include source file directory in search path; what's a | |
1915 | good way to do this? | |
1916 | ||
d0313fb7 | 1917 | Entering/exiting included/copied file clears all local labels. */ |
9a736b6b | 1918 | |
39bec121 | 1919 | static void |
5a49b8ac | 1920 | tic54x_include (int ignored ATTRIBUTE_UNUSED) |
39bec121 TW |
1921 | { |
1922 | char newblock[] = " .newblock\n"; | |
1923 | char *filename; | |
1924 | char *input; | |
1925 | int len, c = -1; | |
1926 | ||
1927 | ILLEGAL_WITHIN_STRUCT (); | |
1aea3bb8 | 1928 | |
39bec121 TW |
1929 | SKIP_WHITESPACE (); |
1930 | ||
1931 | if (*input_line_pointer == '"') | |
1932 | { | |
1933 | filename = demand_copy_C_string (&len); | |
1934 | demand_empty_rest_of_line (); | |
1935 | } | |
1936 | else | |
1937 | { | |
1938 | filename = input_line_pointer; | |
1aea3bb8 | 1939 | while (!is_end_of_line[(int) *input_line_pointer]) |
9a736b6b | 1940 | ++input_line_pointer; |
39bec121 TW |
1941 | c = *input_line_pointer; |
1942 | *input_line_pointer = '\0'; | |
1aea3bb8 | 1943 | filename = strcpy (xmalloc (strlen (filename) + 1), filename); |
39bec121 TW |
1944 | *input_line_pointer = c; |
1945 | demand_empty_rest_of_line (); | |
1946 | } | |
1947 | /* Insert a partial line with the filename (for the sake of s_include) | |
1948 | and a .newblock. | |
1949 | The included file will be inserted before the newblock, so that the | |
d0313fb7 | 1950 | newblock is executed after the included file is processed. */ |
39bec121 TW |
1951 | input = xmalloc (sizeof (newblock) + strlen (filename) + 4); |
1952 | sprintf (input, "\"%s\"\n%s", filename, newblock); | |
1953 | input_scrub_insert_line (input); | |
1954 | ||
1955 | tic54x_clear_local_labels (0); | |
1956 | ||
1957 | tic54x_set_default_include (0); | |
1958 | ||
1959 | s_include (0); | |
1960 | } | |
1961 | ||
1962 | static void | |
5a49b8ac | 1963 | tic54x_message (int type) |
39bec121 TW |
1964 | { |
1965 | char *msg; | |
1966 | char c; | |
1967 | int len; | |
1968 | ||
1969 | ILLEGAL_WITHIN_STRUCT (); | |
1970 | ||
1971 | if (*input_line_pointer == '"') | |
1972 | msg = demand_copy_C_string (&len); | |
1973 | else | |
1974 | { | |
1975 | msg = input_line_pointer; | |
1aea3bb8 | 1976 | while (!is_end_of_line[(int) *input_line_pointer]) |
9a736b6b | 1977 | ++input_line_pointer; |
39bec121 TW |
1978 | c = *input_line_pointer; |
1979 | *input_line_pointer = 0; | |
1980 | msg = strcpy (xmalloc (strlen (msg) + 1), msg); | |
1981 | *input_line_pointer = c; | |
1982 | } | |
1983 | ||
1984 | switch (type) | |
1985 | { | |
1986 | case 'm': | |
1987 | as_tsktsk ("%s", msg); | |
1988 | break; | |
1989 | case 'w': | |
1990 | as_warn ("%s", msg); | |
1991 | break; | |
1992 | case 'e': | |
1993 | as_bad ("%s", msg); | |
1994 | break; | |
1995 | } | |
1996 | ||
1997 | demand_empty_rest_of_line (); | |
1998 | } | |
1999 | ||
1aea3bb8 | 2000 | /* .label <symbol> |
9a736b6b | 2001 | Define a special symbol that refers to the loadtime address rather than the |
39bec121 TW |
2002 | runtime address within the current section. |
2003 | ||
2004 | This symbol gets a special storage class so that when it is resolved, it is | |
2005 | resolved relative to the load address (lma) of the section rather than the | |
d0313fb7 | 2006 | run address (vma). */ |
9a736b6b | 2007 | |
39bec121 | 2008 | static void |
5a49b8ac | 2009 | tic54x_label (int ignored ATTRIBUTE_UNUSED) |
39bec121 TW |
2010 | { |
2011 | char *name = input_line_pointer; | |
2012 | symbolS *symbolP; | |
2013 | int c; | |
2014 | ||
2015 | ILLEGAL_WITHIN_STRUCT (); | |
2016 | ||
2017 | c = get_symbol_end (); | |
2018 | symbolP = colon (name); | |
2019 | S_SET_STORAGE_CLASS (symbolP, C_STATLAB); | |
2020 | ||
2021 | *input_line_pointer = c; | |
2022 | demand_empty_rest_of_line (); | |
2023 | } | |
2024 | ||
d0313fb7 | 2025 | /* .mmregs |
9a736b6b NC |
2026 | Install all memory-mapped register names into the symbol table as |
2027 | absolute local symbols. */ | |
2028 | ||
39bec121 | 2029 | static void |
5a49b8ac | 2030 | tic54x_mmregs (int ignored ATTRIBUTE_UNUSED) |
39bec121 TW |
2031 | { |
2032 | symbol *sym; | |
2033 | ||
2034 | ILLEGAL_WITHIN_STRUCT (); | |
2035 | ||
1aea3bb8 | 2036 | for (sym = (symbol *) mmregs; sym->name; sym++) |
39bec121 TW |
2037 | { |
2038 | symbolS *symbolP = symbol_new (sym->name, absolute_section, | |
9a736b6b | 2039 | (valueT) sym->value, &zero_address_frag); |
39bec121 TW |
2040 | SF_SET_LOCAL (symbolP); |
2041 | symbol_table_insert (symbolP); | |
2042 | } | |
2043 | } | |
2044 | ||
d0313fb7 | 2045 | /* .loop [count] |
9a736b6b NC |
2046 | Count defaults to 1024. */ |
2047 | ||
39bec121 | 2048 | static void |
5a49b8ac | 2049 | tic54x_loop (int count) |
39bec121 TW |
2050 | { |
2051 | ILLEGAL_WITHIN_STRUCT (); | |
2052 | ||
2053 | SKIP_WHITESPACE (); | |
1aea3bb8 | 2054 | if (!is_end_of_line[(int) *input_line_pointer]) |
9a736b6b | 2055 | count = get_absolute_expression (); |
39bec121 TW |
2056 | |
2057 | do_repeat (count, "LOOP", "ENDLOOP"); | |
2058 | } | |
2059 | ||
d0313fb7 | 2060 | /* Normally, endloop gets eaten by the preceding loop. */ |
9a736b6b | 2061 | |
39bec121 | 2062 | static void |
5a49b8ac | 2063 | tic54x_endloop (int ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2064 | { |
2065 | as_bad (_("ENDLOOP without corresponding LOOP")); | |
2066 | ignore_rest_of_line (); | |
2067 | } | |
2068 | ||
d0313fb7 | 2069 | /* .break [condition]. */ |
9a736b6b | 2070 | |
39bec121 | 2071 | static void |
5a49b8ac | 2072 | tic54x_break (int ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2073 | { |
2074 | int cond = 1; | |
2075 | ||
2076 | ILLEGAL_WITHIN_STRUCT (); | |
2077 | ||
2078 | SKIP_WHITESPACE (); | |
1aea3bb8 | 2079 | if (!is_end_of_line[(int) *input_line_pointer]) |
9a736b6b NC |
2080 | cond = get_absolute_expression (); |
2081 | ||
39bec121 | 2082 | if (cond) |
9a736b6b | 2083 | end_repeat (substitution_line ? 1 : 0); |
39bec121 TW |
2084 | } |
2085 | ||
2086 | static void | |
5a49b8ac | 2087 | set_address_mode (int mode) |
39bec121 TW |
2088 | { |
2089 | amode = mode; | |
2090 | if (mode == far_mode) | |
2091 | { | |
1aea3bb8 | 2092 | symbolS *symbolP = symbol_new ("__allow_far", absolute_section, |
9a736b6b | 2093 | (valueT) 1, &zero_address_frag); |
39bec121 TW |
2094 | SF_SET_LOCAL (symbolP); |
2095 | symbol_table_insert (symbolP); | |
2096 | } | |
2097 | } | |
2098 | ||
2099 | static int address_mode_needs_set = 1; | |
f1e7a2c9 | 2100 | |
39bec121 | 2101 | static void |
5a49b8ac | 2102 | tic54x_address_mode (int mode) |
39bec121 | 2103 | { |
1aea3bb8 | 2104 | if (assembly_begun && amode != (unsigned) mode) |
39bec121 TW |
2105 | { |
2106 | as_bad (_("Mixing of normal and extended addressing not supported")); | |
2107 | ignore_rest_of_line (); | |
2108 | return; | |
2109 | } | |
2110 | if (mode == far_mode && cpu != VNONE && cpu != V548 && cpu != V549) | |
2111 | { | |
2112 | as_bad (_("Extended addressing not supported on the specified CPU")); | |
2113 | ignore_rest_of_line (); | |
2114 | return; | |
2115 | } | |
2116 | ||
2117 | set_address_mode (mode); | |
2118 | demand_empty_rest_of_line (); | |
2119 | } | |
2120 | ||
2121 | /* .sblock "section"|section [,...,"section"|section] | |
9a736b6b NC |
2122 | Designate initialized sections for blocking. */ |
2123 | ||
39bec121 | 2124 | static void |
5a49b8ac | 2125 | tic54x_sblock (int ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2126 | { |
2127 | int c = ','; | |
2128 | ||
2129 | ILLEGAL_WITHIN_STRUCT (); | |
2130 | ||
2131 | while (c == ',') | |
2132 | { | |
2133 | segT seg; | |
2134 | char *name; | |
1aea3bb8 | 2135 | |
39bec121 | 2136 | if (*input_line_pointer == '"') |
9a736b6b NC |
2137 | { |
2138 | int len; | |
f1e7a2c9 | 2139 | |
9a736b6b NC |
2140 | name = demand_copy_C_string (&len); |
2141 | } | |
39bec121 | 2142 | else |
9a736b6b NC |
2143 | { |
2144 | char *section_name = input_line_pointer; | |
f1e7a2c9 | 2145 | |
9a736b6b NC |
2146 | c = get_symbol_end (); |
2147 | name = xmalloc (strlen (section_name) + 1); | |
2148 | strcpy (name, section_name); | |
2149 | *input_line_pointer = c; | |
2150 | } | |
39bec121 TW |
2151 | |
2152 | seg = bfd_get_section_by_name (stdoutput, name); | |
2153 | if (seg == NULL) | |
9a736b6b NC |
2154 | { |
2155 | as_bad (_("Unrecognized section '%s'"), name); | |
2156 | ignore_rest_of_line (); | |
2157 | return; | |
2158 | } | |
39bec121 | 2159 | else if (!tic54x_initialized_section (seg)) |
9a736b6b NC |
2160 | { |
2161 | as_bad (_(".sblock may be used for initialized sections only")); | |
2162 | ignore_rest_of_line (); | |
2163 | return; | |
2164 | } | |
ebe372c1 | 2165 | seg->flags |= SEC_TIC54X_BLOCK; |
39bec121 TW |
2166 | |
2167 | c = *input_line_pointer; | |
1aea3bb8 | 2168 | if (!is_end_of_line[(int) c]) |
9a736b6b | 2169 | ++input_line_pointer; |
39bec121 TW |
2170 | } |
2171 | ||
2172 | demand_empty_rest_of_line (); | |
2173 | } | |
2174 | ||
2175 | /* symbol .set value | |
1aea3bb8 | 2176 | symbol .equ value |
39bec121 TW |
2177 | |
2178 | value must be defined externals; no forward-referencing allowed | |
d0313fb7 | 2179 | symbols assigned with .set/.equ may not be redefined. */ |
9a736b6b | 2180 | |
39bec121 | 2181 | static void |
5a49b8ac | 2182 | tic54x_set (int ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2183 | { |
2184 | symbolS *symbolP; | |
2185 | char *name; | |
2186 | ||
2187 | ILLEGAL_WITHIN_STRUCT (); | |
2188 | ||
2189 | if (!line_label) | |
2190 | { | |
2191 | as_bad (_("Symbol missing for .set/.equ")); | |
2192 | ignore_rest_of_line (); | |
2193 | return; | |
2194 | } | |
2195 | name = xstrdup (S_GET_NAME (line_label)); | |
2196 | line_label = NULL; | |
2197 | if ((symbolP = symbol_find (name)) == NULL | |
2198 | && (symbolP = md_undefined_symbol (name)) == NULL) | |
2199 | { | |
2200 | symbolP = symbol_new (name, absolute_section, 0, &zero_address_frag); | |
2201 | S_SET_STORAGE_CLASS (symbolP, C_STAT); | |
2202 | } | |
2203 | free (name); | |
2204 | S_SET_DATA_TYPE (symbolP, T_INT); | |
2205 | S_SET_SEGMENT (symbolP, absolute_section); | |
2206 | symbol_table_insert (symbolP); | |
2207 | pseudo_set (symbolP); | |
2208 | demand_empty_rest_of_line (); | |
2209 | } | |
2210 | ||
2211 | /* .fclist | |
2212 | .fcnolist | |
9a736b6b NC |
2213 | List false conditional blocks. */ |
2214 | ||
39bec121 | 2215 | static void |
5a49b8ac | 2216 | tic54x_fclist (int show) |
39bec121 TW |
2217 | { |
2218 | if (show) | |
2219 | listing &= ~LISTING_NOCOND; | |
2220 | else | |
2221 | listing |= LISTING_NOCOND; | |
2222 | demand_empty_rest_of_line (); | |
2223 | } | |
2224 | ||
2225 | static void | |
5a49b8ac | 2226 | tic54x_sslist (int show) |
39bec121 TW |
2227 | { |
2228 | ILLEGAL_WITHIN_STRUCT (); | |
2229 | ||
2230 | listing_sslist = show; | |
2231 | } | |
2232 | ||
1aea3bb8 | 2233 | /* .var SYM[,...,SYMN] |
9a736b6b NC |
2234 | Define a substitution string to be local to a macro. */ |
2235 | ||
39bec121 | 2236 | static void |
5a49b8ac | 2237 | tic54x_var (int ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2238 | { |
2239 | static char empty[] = ""; | |
2240 | char *name; | |
2241 | int c; | |
2242 | ||
2243 | ILLEGAL_WITHIN_STRUCT (); | |
2244 | ||
2245 | if (macro_level == 0) | |
2246 | { | |
2247 | as_bad (_(".var may only be used within a macro definition")); | |
2248 | ignore_rest_of_line (); | |
2249 | return; | |
2250 | } | |
1aea3bb8 | 2251 | do |
39bec121 | 2252 | { |
3882b010 | 2253 | if (!ISALPHA (*input_line_pointer)) |
9a736b6b NC |
2254 | { |
2255 | as_bad (_("Substitution symbols must begin with a letter")); | |
2256 | ignore_rest_of_line (); | |
2257 | return; | |
2258 | } | |
39bec121 TW |
2259 | name = input_line_pointer; |
2260 | c = get_symbol_end (); | |
9a736b6b | 2261 | /* .var symbols start out with a null string. */ |
1aea3bb8 | 2262 | name = strcpy (xmalloc (strlen (name) + 1), name); |
39bec121 TW |
2263 | hash_insert (subsym_hash[macro_level], name, empty); |
2264 | *input_line_pointer = c; | |
2265 | if (c == ',') | |
9a736b6b NC |
2266 | { |
2267 | ++input_line_pointer; | |
2268 | if (is_end_of_line[(int) *input_line_pointer]) | |
2269 | c = *input_line_pointer; | |
2270 | } | |
39bec121 TW |
2271 | } |
2272 | while (c == ','); | |
2273 | ||
2274 | demand_empty_rest_of_line (); | |
2275 | } | |
2276 | ||
1aea3bb8 | 2277 | /* .mlib <macro library filename> |
39bec121 TW |
2278 | |
2279 | Macro libraries are archived (standard AR-format) text macro definitions | |
2280 | Expand the file and include it. | |
2281 | ||
d0313fb7 | 2282 | FIXME need to try the source file directory as well. */ |
9a736b6b | 2283 | |
39bec121 | 2284 | static void |
5a49b8ac | 2285 | tic54x_mlib (int ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2286 | { |
2287 | char *filename; | |
2288 | char *path; | |
2289 | int len, i; | |
2290 | bfd *abfd, *mbfd; | |
2291 | ||
2292 | ILLEGAL_WITHIN_STRUCT (); | |
2293 | ||
9a736b6b | 2294 | /* Parse the filename. */ |
39bec121 TW |
2295 | if (*input_line_pointer == '"') |
2296 | { | |
2297 | if ((filename = demand_copy_C_string (&len)) == NULL) | |
9a736b6b | 2298 | return; |
39bec121 TW |
2299 | } |
2300 | else | |
2301 | { | |
2302 | SKIP_WHITESPACE (); | |
2303 | len = 0; | |
1aea3bb8 | 2304 | while (!is_end_of_line[(int) *input_line_pointer] |
3882b010 | 2305 | && !ISSPACE (*input_line_pointer)) |
9a736b6b NC |
2306 | { |
2307 | obstack_1grow (¬es, *input_line_pointer); | |
2308 | ++input_line_pointer; | |
2309 | ++len; | |
2310 | } | |
39bec121 TW |
2311 | obstack_1grow (¬es, '\0'); |
2312 | filename = obstack_finish (¬es); | |
2313 | } | |
2314 | demand_empty_rest_of_line (); | |
2315 | ||
2316 | tic54x_set_default_include (0); | |
2317 | path = xmalloc ((unsigned long) len + include_dir_maxlen + 5); | |
f1e7a2c9 | 2318 | |
1aea3bb8 | 2319 | for (i = 0; i < include_dir_count; i++) |
39bec121 TW |
2320 | { |
2321 | FILE *try; | |
f1e7a2c9 | 2322 | |
39bec121 TW |
2323 | strcpy (path, include_dirs[i]); |
2324 | strcat (path, "/"); | |
2325 | strcat (path, filename); | |
2326 | if ((try = fopen (path, "r")) != NULL) | |
9a736b6b NC |
2327 | { |
2328 | fclose (try); | |
2329 | break; | |
2330 | } | |
1aea3bb8 | 2331 | } |
f1e7a2c9 | 2332 | |
39bec121 TW |
2333 | if (i >= include_dir_count) |
2334 | { | |
2335 | free (path); | |
2336 | path = filename; | |
2337 | } | |
2338 | ||
2339 | /* FIXME: if path is found, malloc'd storage is not freed. Of course, this | |
2340 | happens all over the place, and since the assembler doesn't usually keep | |
9a736b6b | 2341 | running for a very long time, it really doesn't matter. */ |
39bec121 TW |
2342 | register_dependency (path); |
2343 | ||
d0313fb7 | 2344 | /* Expand all archive entries to temporary files and include them. */ |
39bec121 TW |
2345 | abfd = bfd_openr (path, NULL); |
2346 | if (!abfd) | |
2347 | { | |
885afe7b AM |
2348 | as_bad (_("can't open macro library file '%s' for reading: %s"), |
2349 | path, bfd_errmsg (bfd_get_error ())); | |
39bec121 TW |
2350 | ignore_rest_of_line (); |
2351 | return; | |
2352 | } | |
2353 | if (!bfd_check_format (abfd, bfd_archive)) | |
2354 | { | |
2355 | as_bad (_("File '%s' not in macro archive format"), path); | |
2356 | ignore_rest_of_line (); | |
2357 | return; | |
2358 | } | |
2359 | ||
d0313fb7 | 2360 | /* Open each BFD as binary (it should be straight ASCII text). */ |
39bec121 TW |
2361 | for (mbfd = bfd_openr_next_archived_file (abfd, NULL); |
2362 | mbfd != NULL; mbfd = bfd_openr_next_archived_file (abfd, mbfd)) | |
2363 | { | |
d0313fb7 | 2364 | /* Get a size at least as big as the archive member. */ |
39bec121 TW |
2365 | bfd_size_type size = bfd_get_size (mbfd); |
2366 | char *buf = xmalloc (size); | |
2367 | char *fname = tmpnam (NULL); | |
2368 | FILE *ftmp; | |
2369 | ||
d0313fb7 | 2370 | /* We're not sure how big it is, but it will be smaller than "size". */ |
6e210b41 | 2371 | size = bfd_bread (buf, size, mbfd); |
39bec121 | 2372 | |
1aea3bb8 | 2373 | /* Write to a temporary file, then use s_include to include it |
9a736b6b | 2374 | a bit of a hack. */ |
39bec121 | 2375 | ftmp = fopen (fname, "w+b"); |
1aea3bb8 | 2376 | fwrite ((void *) buf, size, 1, ftmp); |
6e210b41 | 2377 | if (size == 0 || buf[size - 1] != '\n') |
9a736b6b | 2378 | fwrite ("\n", 1, 1, ftmp); |
39bec121 TW |
2379 | fclose (ftmp); |
2380 | free (buf); | |
2381 | input_scrub_insert_file (fname); | |
2382 | unlink (fname); | |
2383 | } | |
2384 | } | |
2385 | ||
1aea3bb8 | 2386 | const pseudo_typeS md_pseudo_table[] = |
39bec121 | 2387 | { |
9a736b6b NC |
2388 | { "algebraic", s_ignore , 0 }, |
2389 | { "align" , tic54x_align_words , 128 }, | |
6e917903 TW |
2390 | { "ascii" , tic54x_stringer , 'p' }, |
2391 | { "asciz" , tic54x_stringer , 'P' }, | |
9a736b6b NC |
2392 | { "even" , tic54x_align_words , 2 }, |
2393 | { "asg" , tic54x_asg , 0 }, | |
2394 | { "eval" , tic54x_eval , 0 }, | |
2395 | { "bss" , tic54x_bss , 0 }, | |
2396 | { "byte" , tic54x_cons , 'b' }, | |
2397 | { "ubyte" , tic54x_cons , 'B' }, | |
2398 | { "char" , tic54x_cons , 'c' }, | |
2399 | { "uchar" , tic54x_cons , 'C' }, | |
2400 | { "clink" , tic54x_clink , 0 }, | |
2401 | { "c_mode" , tic54x_address_mode , c_mode }, | |
2402 | { "copy" , tic54x_include , 'c' }, | |
2403 | { "include" , tic54x_include , 'i' }, | |
2404 | { "data" , tic54x_sect , 'd' }, | |
2405 | { "double" , tic54x_float_cons , 'd' }, | |
2406 | { "ldouble" , tic54x_float_cons , 'l' }, | |
2407 | { "drlist" , s_ignore , 0 }, | |
2408 | { "drnolist" , s_ignore , 0 }, | |
2409 | { "emsg" , tic54x_message , 'e' }, | |
2410 | { "mmsg" , tic54x_message , 'm' }, | |
2411 | { "wmsg" , tic54x_message , 'w' }, | |
9a736b6b NC |
2412 | { "far_mode" , tic54x_address_mode , far_mode }, |
2413 | { "fclist" , tic54x_fclist , 1 }, | |
2414 | { "fcnolist" , tic54x_fclist , 0 }, | |
2415 | { "field" , tic54x_field , -1 }, | |
2416 | { "float" , tic54x_float_cons , 'f' }, | |
2417 | { "xfloat" , tic54x_float_cons , 'x' }, | |
2418 | { "global" , tic54x_global , 'g' }, | |
2419 | { "def" , tic54x_global , 'd' }, | |
2420 | { "ref" , tic54x_global , 'r' }, | |
2421 | { "half" , tic54x_cons , 'h' }, | |
2422 | { "uhalf" , tic54x_cons , 'H' }, | |
2423 | { "short" , tic54x_cons , 's' }, | |
2424 | { "ushort" , tic54x_cons , 'S' }, | |
2425 | { "if" , s_if , (int) O_ne }, | |
2426 | { "elseif" , s_elseif , (int) O_ne }, | |
2427 | { "else" , s_else , 0 }, | |
2428 | { "endif" , s_endif , 0 }, | |
2429 | { "int" , tic54x_cons , 'i' }, | |
2430 | { "uint" , tic54x_cons , 'I' }, | |
2431 | { "word" , tic54x_cons , 'w' }, | |
2432 | { "uword" , tic54x_cons , 'W' }, | |
2433 | { "label" , tic54x_label , 0 }, /* Loadtime | |
2434 | address. */ | |
2435 | { "length" , s_ignore , 0 }, | |
2436 | { "width" , s_ignore , 0 }, | |
9a736b6b NC |
2437 | { "long" , tic54x_cons , 'l' }, |
2438 | { "ulong" , tic54x_cons , 'L' }, | |
2439 | { "xlong" , tic54x_cons , 'x' }, | |
2440 | { "loop" , tic54x_loop , 1024 }, | |
2441 | { "break" , tic54x_break , 0 }, | |
2442 | { "endloop" , tic54x_endloop , 0 }, | |
2443 | { "mlib" , tic54x_mlib , 0 }, | |
2444 | { "mlist" , s_ignore , 0 }, | |
2445 | { "mnolist" , s_ignore , 0 }, | |
2446 | { "mmregs" , tic54x_mmregs , 0 }, | |
2447 | { "newblock" , tic54x_clear_local_labels, 0 }, | |
2448 | { "option" , s_ignore , 0 }, | |
2449 | { "p2align" , tic54x_p2align , 0 }, | |
9a736b6b NC |
2450 | { "sblock" , tic54x_sblock , 0 }, |
2451 | { "sect" , tic54x_sect , '*' }, | |
2452 | { "set" , tic54x_set , 0 }, | |
2453 | { "equ" , tic54x_set , 0 }, | |
2454 | { "space" , tic54x_space , 0 }, | |
2455 | { "bes" , tic54x_space , 1 }, | |
2456 | { "sslist" , tic54x_sslist , 1 }, | |
2457 | { "ssnolist" , tic54x_sslist , 0 }, | |
2458 | { "string" , tic54x_stringer , 's' }, | |
2459 | { "pstring" , tic54x_stringer , 'p' }, | |
2460 | { "struct" , tic54x_struct , 0 }, | |
2461 | { "tag" , tic54x_tag , 0 }, | |
2462 | { "endstruct", tic54x_endstruct , 0 }, | |
2463 | { "tab" , s_ignore , 0 }, | |
2464 | { "text" , tic54x_sect , 't' }, | |
9a736b6b NC |
2465 | { "union" , tic54x_struct , 1 }, |
2466 | { "endunion" , tic54x_endstruct , 1 }, | |
2467 | { "usect" , tic54x_usect , 0 }, | |
2468 | { "var" , tic54x_var , 0 }, | |
2469 | { "version" , tic54x_version , 0 }, | |
2470 | {0 , 0 , 0 } | |
39bec121 TW |
2471 | }; |
2472 | ||
39bec121 | 2473 | int |
5a49b8ac | 2474 | md_parse_option (int c, char *arg) |
39bec121 TW |
2475 | { |
2476 | switch (c) | |
2477 | { | |
2478 | default: | |
2479 | return 0; | |
2480 | case OPTION_COFF_VERSION: | |
2481 | { | |
9a736b6b | 2482 | int version = atoi (arg); |
f1e7a2c9 | 2483 | |
9a736b6b NC |
2484 | if (version != 0 && version != 1 && version != 2) |
2485 | as_fatal (_("Bad COFF version '%s'"), arg); | |
2486 | /* FIXME -- not yet implemented. */ | |
2487 | break; | |
39bec121 TW |
2488 | } |
2489 | case OPTION_CPU_VERSION: | |
2490 | { | |
9a736b6b NC |
2491 | cpu = lookup_version (arg); |
2492 | cpu_needs_set = 1; | |
2493 | if (cpu == VNONE) | |
2494 | as_fatal (_("Bad CPU version '%s'"), arg); | |
2495 | break; | |
39bec121 TW |
2496 | } |
2497 | case OPTION_ADDRESS_MODE: | |
2498 | amode = far_mode; | |
2499 | address_mode_needs_set = 1; | |
2500 | break; | |
2501 | case OPTION_STDERR_TO_FILE: | |
2502 | { | |
9a736b6b NC |
2503 | char *filename = arg; |
2504 | FILE *fp = fopen (filename, "w+"); | |
f1e7a2c9 | 2505 | |
9a736b6b NC |
2506 | if (fp == NULL) |
2507 | as_fatal (_("Can't redirect stderr to the file '%s'"), filename); | |
2508 | fclose (fp); | |
2509 | if ((fp = freopen (filename, "w+", stderr)) == NULL) | |
2510 | as_fatal (_("Can't redirect stderr to the file '%s'"), filename); | |
2511 | break; | |
39bec121 TW |
2512 | } |
2513 | } | |
2514 | ||
2515 | return 1; | |
2516 | } | |
2517 | ||
1aea3bb8 | 2518 | /* Create a "local" substitution string hash table for a new macro level |
39bec121 TW |
2519 | Some docs imply that macros have to use .newblock in order to be able |
2520 | to re-use a local label. We effectively do an automatic .newblock by | |
d0313fb7 | 2521 | deleting the local label hash between macro invocations. */ |
9a736b6b | 2522 | |
1aea3bb8 | 2523 | void |
5a49b8ac | 2524 | tic54x_macro_start (void) |
39bec121 TW |
2525 | { |
2526 | ++macro_level; | |
2527 | subsym_hash[macro_level] = hash_new (); | |
2528 | local_label_hash[macro_level] = hash_new (); | |
2529 | } | |
2530 | ||
2531 | void | |
5a49b8ac | 2532 | tic54x_macro_info (const macro_entry *macro) |
39bec121 | 2533 | { |
4962e196 | 2534 | const formal_entry *entry; |
39bec121 | 2535 | |
d0313fb7 | 2536 | /* Put the formal args into the substitution symbol table. */ |
39bec121 TW |
2537 | for (entry = macro->formals; entry; entry = entry->next) |
2538 | { | |
2539 | char *name = strncpy (xmalloc (entry->name.len + 1), | |
9a736b6b | 2540 | entry->name.ptr, entry->name.len); |
39bec121 | 2541 | char *value = strncpy (xmalloc (entry->actual.len + 1), |
9a736b6b | 2542 | entry->actual.ptr, entry->actual.len); |
f1e7a2c9 | 2543 | |
39bec121 TW |
2544 | name[entry->name.len] = '\0'; |
2545 | value[entry->actual.len] = '\0'; | |
2546 | hash_insert (subsym_hash[macro_level], name, value); | |
2547 | } | |
2548 | } | |
2549 | ||
d0313fb7 | 2550 | /* Get rid of this macro's .var's, arguments, and local labels. */ |
9a736b6b | 2551 | |
39bec121 | 2552 | void |
5a49b8ac | 2553 | tic54x_macro_end (void) |
39bec121 TW |
2554 | { |
2555 | hash_die (subsym_hash[macro_level]); | |
2556 | subsym_hash[macro_level] = NULL; | |
2557 | hash_die (local_label_hash[macro_level]); | |
2558 | local_label_hash[macro_level] = NULL; | |
2559 | --macro_level; | |
2560 | } | |
2561 | ||
2562 | static int | |
5a49b8ac | 2563 | subsym_symlen (char *a, char *ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2564 | { |
2565 | return strlen (a); | |
2566 | } | |
2567 | ||
d0313fb7 | 2568 | /* Compare symbol A to string B. */ |
9a736b6b | 2569 | |
39bec121 | 2570 | static int |
5a49b8ac | 2571 | subsym_symcmp (char *a, char *b) |
39bec121 TW |
2572 | { |
2573 | return strcmp (a, b); | |
2574 | } | |
2575 | ||
33b7f697 | 2576 | /* Return the index of the first occurrence of B in A, or zero if none |
d0313fb7 | 2577 | assumes b is an integer char value as a string. Index is one-based. */ |
9a736b6b | 2578 | |
39bec121 | 2579 | static int |
5a49b8ac | 2580 | subsym_firstch (char *a, char *b) |
39bec121 TW |
2581 | { |
2582 | int val = atoi (b); | |
2583 | char *tmp = strchr (a, val); | |
1aea3bb8 | 2584 | |
39bec121 TW |
2585 | return tmp ? tmp - a + 1 : 0; |
2586 | } | |
2587 | ||
d0313fb7 | 2588 | /* Similar to firstch, but returns index of last occurrence of B in A. */ |
9a736b6b | 2589 | |
39bec121 | 2590 | static int |
5a49b8ac | 2591 | subsym_lastch (char *a, char *b) |
39bec121 TW |
2592 | { |
2593 | int val = atoi (b); | |
2594 | char *tmp = strrchr (a, val); | |
2595 | ||
2596 | return tmp ? tmp - a + 1 : 0; | |
2597 | } | |
2598 | ||
d0313fb7 | 2599 | /* Returns 1 if string A is defined in the symbol table (NOT the substitution |
9a736b6b NC |
2600 | symbol table). */ |
2601 | ||
39bec121 | 2602 | static int |
5a49b8ac | 2603 | subsym_isdefed (char *a, char *ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2604 | { |
2605 | symbolS *symbolP = symbol_find (a); | |
2606 | ||
2607 | return symbolP != NULL; | |
2608 | } | |
2609 | ||
d0313fb7 | 2610 | /* Assign first member of comma-separated list B (e.g. "1,2,3") to the symbol |
39bec121 | 2611 | A, or zero if B is a null string. Both arguments *must* be substitution |
d0313fb7 | 2612 | symbols, unsubstituted. */ |
9a736b6b | 2613 | |
39bec121 | 2614 | static int |
5a49b8ac | 2615 | subsym_ismember (char *sym, char *list) |
39bec121 TW |
2616 | { |
2617 | char *elem, *ptr, *listv; | |
2618 | ||
2619 | if (!list) | |
2620 | return 0; | |
2621 | ||
2622 | listv = subsym_lookup (list, macro_level); | |
2623 | if (!listv) | |
2624 | { | |
2625 | as_bad (_("Undefined substitution symbol '%s'"), list); | |
2626 | ignore_rest_of_line (); | |
2627 | return 0; | |
2628 | } | |
2629 | ||
1aea3bb8 | 2630 | ptr = elem = xmalloc (strlen (listv) + 1); |
39bec121 TW |
2631 | strcpy (elem, listv); |
2632 | while (*ptr && *ptr != ',') | |
2633 | ++ptr; | |
2634 | *ptr++ = 0; | |
2635 | ||
d0313fb7 | 2636 | subsym_create_or_replace (sym, elem); |
39bec121 | 2637 | |
d0313fb7 | 2638 | /* Reassign the list. */ |
39bec121 | 2639 | subsym_create_or_replace (list, ptr); |
1aea3bb8 | 2640 | |
d0313fb7 | 2641 | /* Assume this value, docs aren't clear. */ |
39bec121 TW |
2642 | return *list != 0; |
2643 | } | |
2644 | ||
d0313fb7 | 2645 | /* Return zero if not a constant; otherwise: |
39bec121 TW |
2646 | 1 if binary |
2647 | 2 if octal | |
2648 | 3 if hexadecimal | |
2649 | 4 if character | |
d0313fb7 | 2650 | 5 if decimal. */ |
9a736b6b | 2651 | |
39bec121 | 2652 | static int |
5a49b8ac | 2653 | subsym_iscons (char *a, char *ignore ATTRIBUTE_UNUSED) |
39bec121 | 2654 | { |
91d6fa6a | 2655 | expressionS expn; |
39bec121 | 2656 | |
91d6fa6a | 2657 | parse_expression (a, &expn); |
39bec121 | 2658 | |
91d6fa6a | 2659 | if (expn.X_op == O_constant) |
39bec121 TW |
2660 | { |
2661 | int len = strlen (a); | |
2662 | ||
3882b010 | 2663 | switch (TOUPPER (a[len - 1])) |
9a736b6b NC |
2664 | { |
2665 | case 'B': | |
2666 | return 1; | |
2667 | case 'Q': | |
2668 | return 2; | |
2669 | case 'H': | |
2670 | return 3; | |
2671 | case '\'': | |
2672 | return 4; | |
2673 | default: | |
2674 | break; | |
2675 | } | |
d0313fb7 | 2676 | /* No suffix; either octal, hex, or decimal. */ |
39bec121 | 2677 | if (*a == '0' && len > 1) |
9a736b6b | 2678 | { |
3882b010 | 2679 | if (TOUPPER (a[1]) == 'X') |
9a736b6b NC |
2680 | return 3; |
2681 | return 2; | |
2682 | } | |
39bec121 TW |
2683 | return 5; |
2684 | } | |
2685 | ||
2686 | return 0; | |
2687 | } | |
2688 | ||
d0313fb7 | 2689 | /* Return 1 if A is a valid symbol name. Expects string input. */ |
9a736b6b | 2690 | |
39bec121 | 2691 | static int |
5a49b8ac | 2692 | subsym_isname (char *a, char *ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2693 | { |
2694 | if (!is_name_beginner (*a)) | |
2695 | return 0; | |
2696 | while (*a) | |
2697 | { | |
2698 | if (!is_part_of_name (*a)) | |
9a736b6b | 2699 | return 0; |
39bec121 TW |
2700 | ++a; |
2701 | } | |
2702 | return 1; | |
2703 | } | |
2704 | ||
d0313fb7 | 2705 | /* Return whether the string is a register; accepts ar0-7, unless .mmregs has |
39bec121 | 2706 | been seen; if so, recognize any memory-mapped register. |
d0313fb7 | 2707 | Note this does not recognize "A" or "B" accumulators. */ |
9a736b6b | 2708 | |
39bec121 | 2709 | static int |
5a49b8ac | 2710 | subsym_isreg (char *a, char *ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2711 | { |
2712 | if (hash_find (reg_hash, a)) | |
2713 | return 1; | |
2714 | if (hash_find (mmreg_hash, a)) | |
2715 | return 1; | |
2716 | return 0; | |
2717 | } | |
2718 | ||
33b7f697 | 2719 | /* Return the structure size, given the stag. */ |
9a736b6b | 2720 | |
39bec121 | 2721 | static int |
5a49b8ac | 2722 | subsym_structsz (char *name, char *ignore ATTRIBUTE_UNUSED) |
39bec121 | 2723 | { |
1aea3bb8 | 2724 | struct stag *stag = (struct stag *) hash_find (stag_hash, name); |
f1e7a2c9 | 2725 | |
39bec121 TW |
2726 | if (stag) |
2727 | return stag->size; | |
2728 | ||
2729 | return 0; | |
2730 | } | |
2731 | ||
2732 | /* If anybody actually uses this, they can fix it :) | |
2733 | FIXME I'm not sure what the "reference point" of a structure is. It might | |
2734 | be either the initial offset given .struct, or it may be the offset of the | |
2735 | structure within another structure, or it might be something else | |
2736 | altogether. since the TI assembler doesn't seem to ever do anything but | |
d0313fb7 | 2737 | return zero, we punt and return zero. */ |
9a736b6b | 2738 | |
39bec121 | 2739 | static int |
5a49b8ac AM |
2740 | subsym_structacc (char *stag_name ATTRIBUTE_UNUSED, |
2741 | char *ignore ATTRIBUTE_UNUSED) | |
39bec121 TW |
2742 | { |
2743 | return 0; | |
2744 | } | |
2745 | ||
2746 | static float | |
5a49b8ac | 2747 | math_ceil (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2748 | { |
1aea3bb8 | 2749 | return (float) ceil (arg1); |
39bec121 | 2750 | } |
d0313fb7 | 2751 | |
39bec121 | 2752 | static float |
5a49b8ac | 2753 | math_cvi (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2754 | { |
1aea3bb8 | 2755 | return (int) arg1; |
39bec121 | 2756 | } |
d0313fb7 | 2757 | |
39bec121 | 2758 | static float |
5a49b8ac | 2759 | math_floor (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2760 | { |
1aea3bb8 | 2761 | return (float) floor (arg1); |
39bec121 | 2762 | } |
d0313fb7 | 2763 | |
39bec121 | 2764 | static float |
5a49b8ac | 2765 | math_fmod (float arg1, float arg2) |
39bec121 | 2766 | { |
1aea3bb8 | 2767 | return (int) arg1 % (int) arg2; |
39bec121 | 2768 | } |
d0313fb7 | 2769 | |
39bec121 | 2770 | static float |
5a49b8ac | 2771 | math_int (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2772 | { |
1aea3bb8 | 2773 | return ((float) ((int) arg1)) == arg1; |
39bec121 | 2774 | } |
d0313fb7 | 2775 | |
39bec121 | 2776 | static float |
5a49b8ac | 2777 | math_round (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2778 | { |
1aea3bb8 | 2779 | return arg1 > 0 ? (int) (arg1 + 0.5) : (int) (arg1 - 0.5); |
39bec121 | 2780 | } |
d0313fb7 | 2781 | |
39bec121 | 2782 | static float |
5a49b8ac | 2783 | math_sgn (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2784 | { |
2785 | return (arg1 < 0) ? -1 : (arg1 ? 1 : 0); | |
2786 | } | |
d0313fb7 | 2787 | |
39bec121 | 2788 | static float |
5a49b8ac | 2789 | math_trunc (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2790 | { |
1aea3bb8 | 2791 | return (int) arg1; |
39bec121 TW |
2792 | } |
2793 | ||
2794 | static float | |
5a49b8ac | 2795 | math_acos (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2796 | { |
1aea3bb8 | 2797 | return (float) acos (arg1); |
39bec121 | 2798 | } |
d0313fb7 | 2799 | |
39bec121 | 2800 | static float |
5a49b8ac | 2801 | math_asin (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2802 | { |
1aea3bb8 | 2803 | return (float) asin (arg1); |
39bec121 | 2804 | } |
d0313fb7 | 2805 | |
39bec121 | 2806 | static float |
5a49b8ac | 2807 | math_atan (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2808 | { |
1aea3bb8 | 2809 | return (float) atan (arg1); |
39bec121 | 2810 | } |
d0313fb7 | 2811 | |
39bec121 | 2812 | static float |
5a49b8ac | 2813 | math_atan2 (float arg1, float arg2) |
39bec121 | 2814 | { |
1aea3bb8 | 2815 | return (float) atan2 (arg1, arg2); |
39bec121 | 2816 | } |
d0313fb7 | 2817 | |
39bec121 | 2818 | static float |
5a49b8ac | 2819 | math_cosh (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2820 | { |
1aea3bb8 | 2821 | return (float) cosh (arg1); |
39bec121 | 2822 | } |
d0313fb7 | 2823 | |
39bec121 | 2824 | static float |
5a49b8ac | 2825 | math_cos (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2826 | { |
1aea3bb8 | 2827 | return (float) cos (arg1); |
39bec121 | 2828 | } |
d0313fb7 | 2829 | |
39bec121 | 2830 | static float |
5a49b8ac | 2831 | math_cvf (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2832 | { |
1aea3bb8 | 2833 | return (float) arg1; |
39bec121 | 2834 | } |
d0313fb7 | 2835 | |
39bec121 | 2836 | static float |
5a49b8ac | 2837 | math_exp (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2838 | { |
1aea3bb8 | 2839 | return (float) exp (arg1); |
39bec121 | 2840 | } |
d0313fb7 | 2841 | |
39bec121 | 2842 | static float |
5a49b8ac | 2843 | math_fabs (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2844 | { |
1aea3bb8 | 2845 | return (float) fabs (arg1); |
39bec121 | 2846 | } |
d0313fb7 NC |
2847 | |
2848 | /* expr1 * 2^expr2. */ | |
9a736b6b | 2849 | |
39bec121 | 2850 | static float |
5a49b8ac | 2851 | math_ldexp (float arg1, float arg2) |
39bec121 | 2852 | { |
1aea3bb8 | 2853 | return arg1 * (float) pow (2.0, arg2); |
39bec121 | 2854 | } |
d0313fb7 | 2855 | |
39bec121 | 2856 | static float |
5a49b8ac | 2857 | math_log10 (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2858 | { |
1aea3bb8 | 2859 | return (float) log10 (arg1); |
39bec121 | 2860 | } |
d0313fb7 | 2861 | |
39bec121 | 2862 | static float |
5a49b8ac | 2863 | math_log (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2864 | { |
1aea3bb8 | 2865 | return (float) log (arg1); |
39bec121 | 2866 | } |
d0313fb7 | 2867 | |
39bec121 | 2868 | static float |
5a49b8ac | 2869 | math_max (float arg1, float arg2) |
39bec121 TW |
2870 | { |
2871 | return (arg1 > arg2) ? arg1 : arg2; | |
2872 | } | |
d0313fb7 | 2873 | |
39bec121 | 2874 | static float |
5a49b8ac | 2875 | math_min (float arg1, float arg2) |
39bec121 TW |
2876 | { |
2877 | return (arg1 < arg2) ? arg1 : arg2; | |
2878 | } | |
d0313fb7 | 2879 | |
39bec121 | 2880 | static float |
5a49b8ac | 2881 | math_pow (float arg1, float arg2) |
39bec121 | 2882 | { |
1aea3bb8 | 2883 | return (float) pow (arg1, arg2); |
39bec121 | 2884 | } |
d0313fb7 | 2885 | |
39bec121 | 2886 | static float |
5a49b8ac | 2887 | math_sin (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2888 | { |
1aea3bb8 | 2889 | return (float) sin (arg1); |
39bec121 | 2890 | } |
d0313fb7 | 2891 | |
39bec121 | 2892 | static float |
5a49b8ac | 2893 | math_sinh (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2894 | { |
1aea3bb8 | 2895 | return (float) sinh (arg1); |
39bec121 | 2896 | } |
d0313fb7 | 2897 | |
39bec121 | 2898 | static float |
5a49b8ac | 2899 | math_sqrt (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2900 | { |
1aea3bb8 | 2901 | return (float) sqrt (arg1); |
39bec121 | 2902 | } |
d0313fb7 | 2903 | |
39bec121 | 2904 | static float |
5a49b8ac | 2905 | math_tan (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2906 | { |
1aea3bb8 | 2907 | return (float) tan (arg1); |
39bec121 | 2908 | } |
d0313fb7 | 2909 | |
39bec121 | 2910 | static float |
5a49b8ac | 2911 | math_tanh (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2912 | { |
1aea3bb8 | 2913 | return (float) tanh (arg1); |
39bec121 TW |
2914 | } |
2915 | ||
d0313fb7 | 2916 | /* Built-in substitution symbol functions and math functions. */ |
1aea3bb8 | 2917 | typedef struct |
39bec121 TW |
2918 | { |
2919 | char *name; | |
5a49b8ac | 2920 | int (*proc) (char *, char *); |
39bec121 TW |
2921 | int nargs; |
2922 | } subsym_proc_entry; | |
2923 | ||
d0313fb7 NC |
2924 | static const subsym_proc_entry subsym_procs[] = |
2925 | { | |
2926 | /* Assembler built-in string substitution functions. */ | |
39bec121 TW |
2927 | { "$symlen", subsym_symlen, 1, }, |
2928 | { "$symcmp", subsym_symcmp, 2, }, | |
2929 | { "$firstch", subsym_firstch, 2, }, | |
2930 | { "$lastch", subsym_lastch, 2, }, | |
2931 | { "$isdefed", subsym_isdefed, 1, }, | |
2932 | { "$ismember", subsym_ismember, 2, }, | |
2933 | { "$iscons", subsym_iscons, 1, }, | |
2934 | { "$isname", subsym_isname, 1, }, | |
2935 | { "$isreg", subsym_isreg, 1, }, | |
2936 | { "$structsz", subsym_structsz, 1, }, | |
2937 | { "$structacc", subsym_structacc, 1, }, | |
2938 | { NULL, NULL, 0 }, | |
2939 | }; | |
2940 | ||
2941 | typedef struct | |
2942 | { | |
2943 | char *name; | |
5a49b8ac | 2944 | float (*proc) (float, float); |
39bec121 TW |
2945 | int nargs; |
2946 | int int_return; | |
2947 | } math_proc_entry; | |
2948 | ||
d0313fb7 NC |
2949 | static const math_proc_entry math_procs[] = |
2950 | { | |
2951 | /* Integer-returning built-in math functions. */ | |
39bec121 TW |
2952 | { "$cvi", math_cvi, 1, 1 }, |
2953 | { "$int", math_int, 1, 1 }, | |
2954 | { "$sgn", math_sgn, 1, 1 }, | |
2955 | ||
d0313fb7 | 2956 | /* Float-returning built-in math functions. */ |
39bec121 TW |
2957 | { "$acos", math_acos, 1, 0 }, |
2958 | { "$asin", math_asin, 1, 0 }, | |
2959 | { "$atan", math_atan, 1, 0 }, | |
1aea3bb8 | 2960 | { "$atan2", math_atan2, 2, 0 }, |
39bec121 TW |
2961 | { "$ceil", math_ceil, 1, 0 }, |
2962 | { "$cosh", math_cosh, 1, 0 }, | |
2963 | { "$cos", math_cos, 1, 0 }, | |
2964 | { "$cvf", math_cvf, 1, 0 }, | |
2965 | { "$exp", math_exp, 1, 0 }, | |
2966 | { "$fabs", math_fabs, 1, 0 }, | |
2967 | { "$floor", math_floor, 1, 0 }, | |
2968 | { "$fmod", math_fmod, 2, 0 }, | |
2969 | { "$ldexp", math_ldexp, 2, 0 }, | |
2970 | { "$log10", math_log10, 1, 0 }, | |
2971 | { "$log", math_log, 1, 0 }, | |
2972 | { "$max", math_max, 2, 0 }, | |
2973 | { "$min", math_min, 2, 0 }, | |
2974 | { "$pow", math_pow, 2, 0 }, | |
2975 | { "$round", math_round, 1, 0 }, | |
2976 | { "$sin", math_sin, 1, 0 }, | |
2977 | { "$sinh", math_sinh, 1, 0 }, | |
2978 | { "$sqrt", math_sqrt, 1, 0 }, | |
2979 | { "$tan", math_tan, 1, 0 }, | |
2980 | { "$tanh", math_tanh, 1, 0 }, | |
2981 | { "$trunc", math_trunc, 1, 0 }, | |
2982 | { NULL, NULL, 0, 0 }, | |
2983 | }; | |
2984 | ||
2985 | void | |
5a49b8ac | 2986 | md_begin (void) |
39bec121 | 2987 | { |
d3ce72d0 | 2988 | insn_template *tm; |
39bec121 TW |
2989 | symbol *sym; |
2990 | const subsym_proc_entry *subsym_proc; | |
2991 | const math_proc_entry *math_proc; | |
2992 | const char *hash_err; | |
2993 | char **symname; | |
2994 | char *TIC54X_DIR = getenv ("TIC54X_DIR"); | |
2995 | char *A_DIR = TIC54X_DIR ? TIC54X_DIR : getenv ("A_DIR"); | |
2996 | ||
2997 | local_label_id = 0; | |
2998 | ||
f1e7a2c9 | 2999 | /* Look for A_DIR and add it to the include list. */ |
39bec121 TW |
3000 | if (A_DIR != NULL) |
3001 | { | |
3002 | char *tmp = xstrdup (A_DIR); | |
f1e7a2c9 | 3003 | |
1aea3bb8 NC |
3004 | do |
3005 | { | |
3006 | char *next = strchr (tmp, ';'); | |
f1e7a2c9 | 3007 | |
1aea3bb8 NC |
3008 | if (next) |
3009 | *next++ = '\0'; | |
3010 | add_include_dir (tmp); | |
3011 | tmp = next; | |
3012 | } | |
3013 | while (tmp != NULL); | |
39bec121 TW |
3014 | } |
3015 | ||
3016 | op_hash = hash_new (); | |
d3ce72d0 | 3017 | for (tm = (insn_template *) tic54x_optab; tm->name; tm++) |
39bec121 | 3018 | { |
6e917903 | 3019 | if (hash_find (op_hash, tm->name)) |
9a736b6b | 3020 | continue; |
6e917903 | 3021 | hash_err = hash_insert (op_hash, tm->name, (char *) tm); |
39bec121 | 3022 | if (hash_err) |
9a736b6b | 3023 | as_fatal ("Internal Error: Can't hash %s: %s", |
6e917903 | 3024 | tm->name, hash_err); |
39bec121 TW |
3025 | } |
3026 | parop_hash = hash_new (); | |
d3ce72d0 | 3027 | for (tm = (insn_template *) tic54x_paroptab; tm->name; tm++) |
39bec121 | 3028 | { |
6e917903 | 3029 | if (hash_find (parop_hash, tm->name)) |
9a736b6b | 3030 | continue; |
6e917903 | 3031 | hash_err = hash_insert (parop_hash, tm->name, (char *) tm); |
39bec121 | 3032 | if (hash_err) |
9a736b6b | 3033 | as_fatal ("Internal Error: Can't hash %s: %s", |
6e917903 | 3034 | tm->name, hash_err); |
39bec121 TW |
3035 | } |
3036 | reg_hash = hash_new (); | |
1aea3bb8 | 3037 | for (sym = (symbol *) regs; sym->name; sym++) |
39bec121 | 3038 | { |
d0313fb7 | 3039 | /* Add basic registers to the symbol table. */ |
39bec121 | 3040 | symbolS *symbolP = symbol_new (sym->name, absolute_section, |
9a736b6b | 3041 | (valueT) sym->value, &zero_address_frag); |
39bec121 TW |
3042 | SF_SET_LOCAL (symbolP); |
3043 | symbol_table_insert (symbolP); | |
1aea3bb8 | 3044 | hash_err = hash_insert (reg_hash, sym->name, (char *) sym); |
39bec121 | 3045 | } |
1aea3bb8 NC |
3046 | for (sym = (symbol *) mmregs; sym->name; sym++) |
3047 | hash_err = hash_insert (reg_hash, sym->name, (char *) sym); | |
39bec121 | 3048 | mmreg_hash = hash_new (); |
1aea3bb8 | 3049 | for (sym = (symbol *) mmregs; sym->name; sym++) |
f1e7a2c9 NC |
3050 | hash_err = hash_insert (mmreg_hash, sym->name, (char *) sym); |
3051 | ||
39bec121 | 3052 | cc_hash = hash_new (); |
1aea3bb8 | 3053 | for (sym = (symbol *) condition_codes; sym->name; sym++) |
f1e7a2c9 NC |
3054 | hash_err = hash_insert (cc_hash, sym->name, (char *) sym); |
3055 | ||
39bec121 | 3056 | cc2_hash = hash_new (); |
1aea3bb8 | 3057 | for (sym = (symbol *) cc2_codes; sym->name; sym++) |
f1e7a2c9 NC |
3058 | hash_err = hash_insert (cc2_hash, sym->name, (char *) sym); |
3059 | ||
39bec121 | 3060 | cc3_hash = hash_new (); |
1aea3bb8 | 3061 | for (sym = (symbol *) cc3_codes; sym->name; sym++) |
f1e7a2c9 NC |
3062 | hash_err = hash_insert (cc3_hash, sym->name, (char *) sym); |
3063 | ||
39bec121 | 3064 | sbit_hash = hash_new (); |
1aea3bb8 | 3065 | for (sym = (symbol *) status_bits; sym->name; sym++) |
f1e7a2c9 NC |
3066 | hash_err = hash_insert (sbit_hash, sym->name, (char *) sym); |
3067 | ||
39bec121 | 3068 | misc_symbol_hash = hash_new (); |
1aea3bb8 | 3069 | for (symname = (char **) misc_symbols; *symname; symname++) |
f1e7a2c9 NC |
3070 | hash_err = hash_insert (misc_symbol_hash, *symname, *symname); |
3071 | ||
d0313fb7 NC |
3072 | /* Only the base substitution table and local label table are initialized; |
3073 | the others (for local macro substitution) get instantiated as needed. */ | |
39bec121 TW |
3074 | local_label_hash[0] = hash_new (); |
3075 | subsym_hash[0] = hash_new (); | |
3076 | for (subsym_proc = subsym_procs; subsym_proc->name; subsym_proc++) | |
f1e7a2c9 NC |
3077 | hash_err = hash_insert (subsym_hash[0], subsym_proc->name, |
3078 | (char *) subsym_proc); | |
3079 | ||
39bec121 TW |
3080 | math_hash = hash_new (); |
3081 | for (math_proc = math_procs; math_proc->name; math_proc++) | |
3082 | { | |
d0313fb7 | 3083 | /* Insert into the main subsym hash for recognition; insert into |
9a736b6b | 3084 | the math hash to actually store information. */ |
39bec121 | 3085 | hash_err = hash_insert (subsym_hash[0], math_proc->name, |
9a736b6b | 3086 | (char *) math_proc); |
39bec121 | 3087 | hash_err = hash_insert (math_hash, math_proc->name, |
9a736b6b | 3088 | (char *) math_proc); |
39bec121 TW |
3089 | } |
3090 | subsym_recurse_hash = hash_new (); | |
3091 | stag_hash = hash_new (); | |
3092 | } | |
3093 | ||
39bec121 | 3094 | static int |
5a49b8ac | 3095 | is_accumulator (struct opstruct *operand) |
39bec121 | 3096 | { |
1aea3bb8 | 3097 | return strcasecmp (operand->buf, "a") == 0 |
39bec121 TW |
3098 | || strcasecmp (operand->buf, "b") == 0; |
3099 | } | |
3100 | ||
9a736b6b NC |
3101 | /* Return the number of operands found, or -1 on error, copying the |
3102 | operands into the given array and the accompanying expressions into | |
3103 | the next array. */ | |
3104 | ||
39bec121 | 3105 | static int |
5a49b8ac | 3106 | get_operands (struct opstruct operands[], char *line) |
39bec121 TW |
3107 | { |
3108 | char *lptr = line; | |
3109 | int numexp = 0; | |
3110 | int expecting_operand = 0; | |
3111 | int i; | |
3112 | ||
1aea3bb8 | 3113 | while (numexp < MAX_OPERANDS && !is_end_of_line[(int) *lptr]) |
39bec121 TW |
3114 | { |
3115 | int paren_not_balanced = 0; | |
3116 | char *op_start, *op_end; | |
f1e7a2c9 | 3117 | |
3882b010 | 3118 | while (*lptr && ISSPACE (*lptr)) |
9a736b6b | 3119 | ++lptr; |
39bec121 TW |
3120 | op_start = lptr; |
3121 | while (paren_not_balanced || *lptr != ',') | |
9a736b6b NC |
3122 | { |
3123 | if (*lptr == '\0') | |
3124 | { | |
3125 | if (paren_not_balanced) | |
3126 | { | |
20203fb9 | 3127 | as_bad (_("Unbalanced parenthesis in operand %d"), numexp); |
9a736b6b NC |
3128 | return -1; |
3129 | } | |
3130 | else | |
3131 | break; | |
3132 | } | |
3133 | if (*lptr == '(') | |
3134 | ++paren_not_balanced; | |
3135 | else if (*lptr == ')') | |
3136 | --paren_not_balanced; | |
3137 | ++lptr; | |
3138 | } | |
39bec121 TW |
3139 | op_end = lptr; |
3140 | if (op_end != op_start) | |
9a736b6b NC |
3141 | { |
3142 | int len = op_end - op_start; | |
f1e7a2c9 | 3143 | |
9a736b6b NC |
3144 | strncpy (operands[numexp].buf, op_start, len); |
3145 | operands[numexp].buf[len] = 0; | |
3146 | /* Trim trailing spaces; while the preprocessor gets rid of most, | |
3147 | there are weird usage patterns that can introduce them | |
3148 | (i.e. using strings for macro args). */ | |
3882b010 | 3149 | while (len > 0 && ISSPACE (operands[numexp].buf[len - 1])) |
9a736b6b NC |
3150 | operands[numexp].buf[--len] = 0; |
3151 | lptr = op_end; | |
3152 | ++numexp; | |
3153 | } | |
1aea3bb8 | 3154 | else |
9a736b6b NC |
3155 | { |
3156 | if (expecting_operand || *lptr == ',') | |
3157 | { | |
20203fb9 | 3158 | as_bad (_("Expecting operand after ','")); |
9a736b6b NC |
3159 | return -1; |
3160 | } | |
3161 | } | |
39bec121 | 3162 | if (*lptr == ',') |
9a736b6b NC |
3163 | { |
3164 | if (*++lptr == '\0') | |
3165 | { | |
20203fb9 | 3166 | as_bad (_("Expecting operand after ','")); |
9a736b6b NC |
3167 | return -1; |
3168 | } | |
3169 | expecting_operand = 1; | |
3170 | } | |
39bec121 TW |
3171 | } |
3172 | ||
3882b010 | 3173 | while (*lptr && ISSPACE (*lptr++)) |
39bec121 | 3174 | ; |
1aea3bb8 | 3175 | if (!is_end_of_line[(int) *lptr]) |
39bec121 | 3176 | { |
20203fb9 | 3177 | as_bad (_("Extra junk on line")); |
39bec121 TW |
3178 | return -1; |
3179 | } | |
3180 | ||
d0313fb7 | 3181 | /* OK, now parse them into expressions. */ |
1aea3bb8 | 3182 | for (i = 0; i < numexp; i++) |
39bec121 TW |
3183 | { |
3184 | memset (&operands[i].exp, 0, sizeof (operands[i].exp)); | |
3185 | if (operands[i].buf[0] == '#') | |
9a736b6b NC |
3186 | { |
3187 | /* Immediate. */ | |
3188 | parse_expression (operands[i].buf + 1, &operands[i].exp); | |
3189 | } | |
39bec121 | 3190 | else if (operands[i].buf[0] == '@') |
9a736b6b NC |
3191 | { |
3192 | /* Direct notation. */ | |
3193 | parse_expression (operands[i].buf + 1, &operands[i].exp); | |
3194 | } | |
39bec121 | 3195 | else if (operands[i].buf[0] == '*') |
9a736b6b NC |
3196 | { |
3197 | /* Indirect. */ | |
3198 | char *paren = strchr (operands[i].buf, '('); | |
f1e7a2c9 | 3199 | |
9a736b6b NC |
3200 | /* Allow immediate syntax in the inner expression. */ |
3201 | if (paren && paren[1] == '#') | |
3202 | *++paren = '('; | |
3203 | ||
3204 | /* Pull out the lk expression or SP offset, if present. */ | |
3205 | if (paren != NULL) | |
3206 | { | |
3207 | int len = strlen (paren); | |
3208 | char *end = paren + len; | |
3209 | int c; | |
f1e7a2c9 | 3210 | |
9a736b6b NC |
3211 | while (end[-1] != ')') |
3212 | if (--end <= paren) | |
3213 | { | |
3214 | as_bad (_("Badly formed address expression")); | |
3215 | return -1; | |
3216 | } | |
3217 | c = *end; | |
3218 | *end = '\0'; | |
3219 | parse_expression (paren, &operands[i].exp); | |
3220 | *end = c; | |
3221 | } | |
3222 | else | |
3223 | operands[i].exp.X_op = O_absent; | |
3224 | } | |
39bec121 | 3225 | else |
9a736b6b | 3226 | parse_expression (operands[i].buf, &operands[i].exp); |
39bec121 TW |
3227 | } |
3228 | ||
3229 | return numexp; | |
3230 | } | |
3231 | ||
d0313fb7 | 3232 | /* Predicates for different operand types. */ |
9a736b6b | 3233 | |
39bec121 | 3234 | static int |
5a49b8ac | 3235 | is_immediate (struct opstruct *operand) |
39bec121 | 3236 | { |
1aea3bb8 | 3237 | return *operand->buf == '#'; |
39bec121 TW |
3238 | } |
3239 | ||
3240 | /* This is distinguished from immediate because some numbers must be constants | |
d0313fb7 | 3241 | and must *not* have the '#' prefix. */ |
9a736b6b | 3242 | |
39bec121 | 3243 | static int |
5a49b8ac | 3244 | is_absolute (struct opstruct *operand) |
39bec121 TW |
3245 | { |
3246 | return operand->exp.X_op == O_constant && !is_immediate (operand); | |
3247 | } | |
3248 | ||
d0313fb7 | 3249 | /* Is this an indirect operand? */ |
9a736b6b | 3250 | |
39bec121 | 3251 | static int |
5a49b8ac | 3252 | is_indirect (struct opstruct *operand) |
39bec121 TW |
3253 | { |
3254 | return operand->buf[0] == '*'; | |
3255 | } | |
3256 | ||
d0313fb7 | 3257 | /* Is this a valid dual-memory operand? */ |
9a736b6b | 3258 | |
39bec121 | 3259 | static int |
5a49b8ac | 3260 | is_dual (struct opstruct *operand) |
39bec121 TW |
3261 | { |
3262 | if (is_indirect (operand) && strncasecmp (operand->buf, "*ar", 3) == 0) | |
3263 | { | |
3264 | char *tmp = operand->buf + 3; | |
3265 | int arf; | |
3266 | int valid_mod; | |
1aea3bb8 | 3267 | |
39bec121 | 3268 | arf = *tmp++ - '0'; |
d0313fb7 | 3269 | /* Only allow *ARx, *ARx-, *ARx+, or *ARx+0%. */ |
39bec121 | 3270 | valid_mod = *tmp == '\0' || |
9a736b6b NC |
3271 | strcasecmp (tmp, "-") == 0 || |
3272 | strcasecmp (tmp, "+") == 0 || | |
3273 | strcasecmp (tmp, "+0%") == 0; | |
39bec121 TW |
3274 | return arf >= 2 && arf <= 5 && valid_mod; |
3275 | } | |
3276 | return 0; | |
3277 | } | |
3278 | ||
3279 | static int | |
5a49b8ac | 3280 | is_mmreg (struct opstruct *operand) |
39bec121 | 3281 | { |
9a736b6b NC |
3282 | return (is_absolute (operand) |
3283 | || is_immediate (operand) | |
3284 | || hash_find (mmreg_hash, operand->buf) != 0); | |
39bec121 TW |
3285 | } |
3286 | ||
3287 | static int | |
5a49b8ac | 3288 | is_type (struct opstruct *operand, enum optype type) |
39bec121 TW |
3289 | { |
3290 | switch (type) | |
3291 | { | |
3292 | case OP_None: | |
3293 | return operand->buf[0] == 0; | |
3294 | case OP_Xmem: | |
3295 | case OP_Ymem: | |
3296 | return is_dual (operand); | |
3297 | case OP_Sind: | |
3298 | return is_indirect (operand); | |
3299 | case OP_xpmad_ms7: | |
d0313fb7 | 3300 | /* This one *must* be immediate. */ |
39bec121 TW |
3301 | return is_immediate (operand); |
3302 | case OP_xpmad: | |
3303 | case OP_pmad: | |
3304 | case OP_PA: | |
3305 | case OP_dmad: | |
3306 | case OP_Lmem: | |
3307 | case OP_MMR: | |
3308 | return 1; | |
3309 | case OP_Smem: | |
d0313fb7 | 3310 | /* Address may be a numeric, indirect, or an expression. */ |
39bec121 TW |
3311 | return !is_immediate (operand); |
3312 | case OP_MMRY: | |
3313 | case OP_MMRX: | |
3314 | return is_mmreg (operand); | |
3315 | case OP_SRC: | |
3316 | case OP_SRC1: | |
3317 | case OP_RND: | |
3318 | case OP_DST: | |
3319 | return is_accumulator (operand); | |
3320 | case OP_B: | |
3882b010 | 3321 | return is_accumulator (operand) && TOUPPER (operand->buf[0]) == 'B'; |
39bec121 | 3322 | case OP_A: |
3882b010 | 3323 | return is_accumulator (operand) && TOUPPER (operand->buf[0]) == 'A'; |
39bec121 | 3324 | case OP_ARX: |
1aea3bb8 | 3325 | return strncasecmp ("ar", operand->buf, 2) == 0 |
3882b010 | 3326 | && ISDIGIT (operand->buf[2]); |
39bec121 TW |
3327 | case OP_SBIT: |
3328 | return hash_find (sbit_hash, operand->buf) != 0 || is_absolute (operand); | |
3329 | case OP_CC: | |
3330 | return hash_find (cc_hash, operand->buf) != 0; | |
3331 | case OP_CC2: | |
3332 | return hash_find (cc2_hash, operand->buf) != 0; | |
3333 | case OP_CC3: | |
1aea3bb8 | 3334 | return hash_find (cc3_hash, operand->buf) != 0 |
9a736b6b | 3335 | || is_immediate (operand) || is_absolute (operand); |
39bec121 TW |
3336 | case OP_16: |
3337 | return (is_immediate (operand) || is_absolute (operand)) | |
9a736b6b | 3338 | && operand->exp.X_add_number == 16; |
39bec121 | 3339 | case OP_N: |
d0313fb7 | 3340 | /* Allow st0 or st1 instead of a numeric. */ |
39bec121 | 3341 | return is_absolute (operand) || is_immediate (operand) || |
9a736b6b NC |
3342 | strcasecmp ("st0", operand->buf) == 0 || |
3343 | strcasecmp ("st1", operand->buf) == 0; | |
39bec121 TW |
3344 | case OP_12: |
3345 | case OP_123: | |
3346 | return is_absolute (operand) || is_immediate (operand); | |
3347 | case OP_SHFT: | |
3348 | return (is_immediate (operand) || is_absolute (operand)) | |
9a736b6b | 3349 | && operand->exp.X_add_number >= 0 && operand->exp.X_add_number < 16; |
39bec121 | 3350 | case OP_SHIFT: |
d0313fb7 | 3351 | /* Let this one catch out-of-range values. */ |
39bec121 | 3352 | return (is_immediate (operand) || is_absolute (operand)) |
9a736b6b | 3353 | && operand->exp.X_add_number != 16; |
39bec121 TW |
3354 | case OP_BITC: |
3355 | case OP_031: | |
3356 | case OP_k8: | |
3357 | return is_absolute (operand) || is_immediate (operand); | |
3358 | case OP_k8u: | |
1aea3bb8 | 3359 | return is_immediate (operand) |
9a736b6b NC |
3360 | && operand->exp.X_op == O_constant |
3361 | && operand->exp.X_add_number >= 0 | |
3362 | && operand->exp.X_add_number < 256; | |
39bec121 TW |
3363 | case OP_lk: |
3364 | case OP_lku: | |
1aea3bb8 | 3365 | /* Allow anything; assumes opcodes are ordered with Smem operands |
9a736b6b | 3366 | versions first. */ |
39bec121 TW |
3367 | return 1; |
3368 | case OP_k5: | |
3369 | case OP_k3: | |
3370 | case OP_k9: | |
d0313fb7 | 3371 | /* Just make sure it's an integer; check range later. */ |
39bec121 TW |
3372 | return is_immediate (operand); |
3373 | case OP_T: | |
1aea3bb8 | 3374 | return strcasecmp ("t", operand->buf) == 0 || |
9a736b6b | 3375 | strcasecmp ("treg", operand->buf) == 0; |
39bec121 TW |
3376 | case OP_TS: |
3377 | return strcasecmp ("ts", operand->buf) == 0; | |
3378 | case OP_ASM: | |
3379 | return strcasecmp ("asm", operand->buf) == 0; | |
3380 | case OP_TRN: | |
3381 | return strcasecmp ("trn", operand->buf) == 0; | |
3382 | case OP_DP: | |
3383 | return strcasecmp ("dp", operand->buf) == 0; | |
3384 | case OP_ARP: | |
3385 | return strcasecmp ("arp", operand->buf) == 0; | |
3386 | default: | |
3387 | return 0; | |
3388 | } | |
3389 | } | |
3390 | ||
3391 | static int | |
5a49b8ac AM |
3392 | operands_match (tic54x_insn *insn, |
3393 | struct opstruct *operands, | |
3394 | int opcount, | |
3395 | const enum optype *refoptype, | |
3396 | int minops, | |
3397 | int maxops) | |
39bec121 TW |
3398 | { |
3399 | int op = 0, refop = 0; | |
3400 | ||
3401 | if (opcount == 0 && minops == 0) | |
f1e7a2c9 | 3402 | return 1; |
39bec121 TW |
3403 | |
3404 | while (op <= maxops && refop <= maxops) | |
3405 | { | |
3406 | while (!is_type (&operands[op], OPTYPE (refoptype[refop]))) | |
9a736b6b NC |
3407 | { |
3408 | /* Skip an optional template operand if it doesn't agree | |
3409 | with the current operand. */ | |
3410 | if (refoptype[refop] & OPT) | |
3411 | { | |
3412 | ++refop; | |
3413 | --maxops; | |
3414 | if (refop > maxops) | |
3415 | return 0; | |
3416 | } | |
3417 | else | |
3418 | return 0; | |
3419 | } | |
39bec121 | 3420 | |
d0313fb7 | 3421 | /* Save the actual operand type for later use. */ |
39bec121 TW |
3422 | operands[op].type = OPTYPE (refoptype[refop]); |
3423 | ++refop; | |
3424 | ++op; | |
d0313fb7 | 3425 | /* Have we matched them all yet? */ |
39bec121 | 3426 | if (op == opcount) |
9a736b6b NC |
3427 | { |
3428 | while (op < maxops) | |
3429 | { | |
3430 | /* If a later operand is *not* optional, no match. */ | |
3431 | if ((refoptype[refop] & OPT) == 0) | |
3432 | return 0; | |
3433 | /* Flag any implicit default OP_DST operands so we know to add | |
3434 | them explicitly when encoding the operand later. */ | |
3435 | if (OPTYPE (refoptype[refop]) == OP_DST) | |
3436 | insn->using_default_dst = 1; | |
3437 | ++refop; | |
3438 | ++op; | |
3439 | } | |
3440 | ||
3441 | return 1; | |
3442 | } | |
39bec121 TW |
3443 | } |
3444 | ||
3445 | return 0; | |
3446 | } | |
3447 | ||
1aea3bb8 | 3448 | /* 16-bit direct memory address |
39bec121 TW |
3449 | Explicit dmad operands are always in last word of insn (usually second |
3450 | word, but bumped to third if lk addressing is used) | |
3451 | ||
3452 | We allow *(dmad) notation because the TI assembler allows it. | |
3453 | ||
1aea3bb8 | 3454 | XPC_CODE: |
39bec121 TW |
3455 | 0 for 16-bit addresses |
3456 | 1 for full 23-bit addresses | |
d0313fb7 | 3457 | 2 for the upper 7 bits of a 23-bit address (LDX). */ |
9a736b6b | 3458 | |
39bec121 | 3459 | static int |
5a49b8ac | 3460 | encode_dmad (tic54x_insn *insn, struct opstruct *operand, int xpc_code) |
39bec121 TW |
3461 | { |
3462 | int op = 1 + insn->is_lkaddr; | |
3463 | ||
d0313fb7 | 3464 | /* Only allow *(dmad) expressions; all others are invalid. */ |
1aea3bb8 | 3465 | if (is_indirect (operand) && operand->buf[strlen (operand->buf) - 1] != ')') |
39bec121 TW |
3466 | { |
3467 | as_bad (_("Invalid dmad syntax '%s'"), operand->buf); | |
3468 | return 0; | |
3469 | } | |
3470 | ||
3471 | insn->opcode[op].addr_expr = operand->exp; | |
3472 | ||
3473 | if (insn->opcode[op].addr_expr.X_op == O_constant) | |
3474 | { | |
3475 | valueT value = insn->opcode[op].addr_expr.X_add_number; | |
f1e7a2c9 | 3476 | |
39bec121 | 3477 | if (xpc_code == 1) |
9a736b6b NC |
3478 | { |
3479 | insn->opcode[0].word &= 0xFF80; | |
3480 | insn->opcode[0].word |= (value >> 16) & 0x7F; | |
3481 | insn->opcode[1].word = value & 0xFFFF; | |
3482 | } | |
39bec121 | 3483 | else if (xpc_code == 2) |
9a736b6b | 3484 | insn->opcode[op].word = (value >> 16) & 0xFFFF; |
39bec121 | 3485 | else |
9a736b6b | 3486 | insn->opcode[op].word = value; |
39bec121 TW |
3487 | } |
3488 | else | |
3489 | { | |
d0313fb7 | 3490 | /* Do the fixup later; just store the expression. */ |
39bec121 TW |
3491 | insn->opcode[op].word = 0; |
3492 | insn->opcode[op].r_nchars = 2; | |
3493 | ||
3494 | if (amode == c_mode) | |
9a736b6b | 3495 | insn->opcode[op].r_type = BFD_RELOC_TIC54X_16_OF_23; |
39bec121 | 3496 | else if (xpc_code == 1) |
9a736b6b NC |
3497 | { |
3498 | /* This relocation spans two words, so adjust accordingly. */ | |
3499 | insn->opcode[0].addr_expr = operand->exp; | |
3500 | insn->opcode[0].r_type = BFD_RELOC_TIC54X_23; | |
3501 | insn->opcode[0].r_nchars = 4; | |
3502 | insn->opcode[0].unresolved = 1; | |
3503 | /* It's really 2 words, but we want to stop encoding after the | |
3504 | first, since we must encode both words at once. */ | |
3505 | insn->words = 1; | |
3506 | } | |
39bec121 | 3507 | else if (xpc_code == 2) |
9a736b6b | 3508 | insn->opcode[op].r_type = BFD_RELOC_TIC54X_MS7_OF_23; |
39bec121 | 3509 | else |
9a736b6b | 3510 | insn->opcode[op].r_type = BFD_RELOC_TIC54X_16_OF_23; |
39bec121 TW |
3511 | |
3512 | insn->opcode[op].unresolved = 1; | |
3513 | } | |
3514 | ||
3515 | return 1; | |
3516 | } | |
3517 | ||
d0313fb7 | 3518 | /* 7-bit direct address encoding. */ |
9a736b6b | 3519 | |
39bec121 | 3520 | static int |
5a49b8ac | 3521 | encode_address (tic54x_insn *insn, struct opstruct *operand) |
39bec121 | 3522 | { |
d0313fb7 | 3523 | /* Assumes that dma addresses are *always* in word 0 of the opcode. */ |
39bec121 TW |
3524 | insn->opcode[0].addr_expr = operand->exp; |
3525 | ||
3526 | if (operand->exp.X_op == O_constant) | |
3527 | insn->opcode[0].word |= (operand->exp.X_add_number & 0x7F); | |
3528 | else | |
3529 | { | |
f1e7a2c9 NC |
3530 | if (operand->exp.X_op == O_register) |
3531 | as_bad (_("Use the .mmregs directive to use memory-mapped register names such as '%s'"), operand->buf); | |
d0313fb7 | 3532 | /* Do the fixup later; just store the expression. */ |
39bec121 TW |
3533 | insn->opcode[0].r_nchars = 1; |
3534 | insn->opcode[0].r_type = BFD_RELOC_TIC54X_PARTLS7; | |
3535 | insn->opcode[0].unresolved = 1; | |
3536 | } | |
3537 | ||
3538 | return 1; | |
3539 | } | |
3540 | ||
3541 | static int | |
5a49b8ac | 3542 | encode_indirect (tic54x_insn *insn, struct opstruct *operand) |
39bec121 TW |
3543 | { |
3544 | int arf; | |
3545 | int mod; | |
3546 | ||
3547 | if (insn->is_lkaddr) | |
3548 | { | |
d0313fb7 | 3549 | /* lk addresses always go in the second insn word. */ |
3882b010 | 3550 | mod = ((TOUPPER (operand->buf[1]) == 'A') ? 12 : |
9a736b6b NC |
3551 | (operand->buf[1] == '(') ? 15 : |
3552 | (strchr (operand->buf, '%') != NULL) ? 14 : 13); | |
39bec121 | 3553 | arf = ((mod == 12) ? operand->buf[3] - '0' : |
9a736b6b | 3554 | (mod == 15) ? 0 : operand->buf[4] - '0'); |
1aea3bb8 | 3555 | |
39bec121 TW |
3556 | insn->opcode[1].addr_expr = operand->exp; |
3557 | ||
3558 | if (operand->exp.X_op == O_constant) | |
9a736b6b | 3559 | insn->opcode[1].word = operand->exp.X_add_number; |
39bec121 | 3560 | else |
9a736b6b NC |
3561 | { |
3562 | insn->opcode[1].word = 0; | |
3563 | insn->opcode[1].r_nchars = 2; | |
3564 | insn->opcode[1].r_type = BFD_RELOC_TIC54X_16_OF_23; | |
3565 | insn->opcode[1].unresolved = 1; | |
3566 | } | |
39bec121 TW |
3567 | } |
3568 | else if (strncasecmp (operand->buf, "*sp (", 4) == 0) | |
3569 | { | |
d0313fb7 | 3570 | /* Stack offsets look the same as 7-bit direct addressing. */ |
39bec121 TW |
3571 | return encode_address (insn, operand); |
3572 | } | |
3573 | else | |
3574 | { | |
3882b010 | 3575 | arf = (TOUPPER (operand->buf[1]) == 'A' ? |
9a736b6b | 3576 | operand->buf[3] : operand->buf[4]) - '0'; |
1aea3bb8 NC |
3577 | |
3578 | if (operand->buf[1] == '+') | |
9a736b6b NC |
3579 | { |
3580 | mod = 3; /* *+ARx */ | |
3581 | if (insn->tm->flags & FL_SMR) | |
3582 | as_warn (_("Address mode *+ARx is write-only. " | |
3583 | "Results of reading are undefined.")); | |
3584 | } | |
1aea3bb8 | 3585 | else if (operand->buf[4] == '\0') |
9a736b6b | 3586 | mod = 0; /* *ARx */ |
39bec121 | 3587 | else if (operand->buf[5] == '\0') |
9a736b6b | 3588 | mod = (operand->buf[4] == '-' ? 1 : 2); /* *ARx+ / *ARx- */ |
39bec121 | 3589 | else if (operand->buf[6] == '\0') |
9a736b6b NC |
3590 | { |
3591 | if (operand->buf[5] == '0') | |
3592 | mod = (operand->buf[4] == '-' ? 5 : 6); /* *ARx+0 / *ARx-0 */ | |
3593 | else | |
3594 | mod = (operand->buf[4] == '-' ? 8 : 10);/* *ARx+% / *ARx-% */ | |
3595 | } | |
3882b010 | 3596 | else if (TOUPPER (operand->buf[6]) == 'B') |
9a736b6b | 3597 | mod = (operand->buf[4] == '-' ? 4 : 7); /* ARx+0B / *ARx-0B */ |
3882b010 | 3598 | else if (TOUPPER (operand->buf[6]) == '%') |
9a736b6b | 3599 | mod = (operand->buf[4] == '-' ? 9 : 11); /* ARx+0% / *ARx - 0% */ |
39bec121 | 3600 | else |
9a736b6b NC |
3601 | { |
3602 | as_bad (_("Unrecognized indirect address format \"%s\""), | |
3603 | operand->buf); | |
3604 | return 0; | |
3605 | } | |
1aea3bb8 | 3606 | } |
39bec121 | 3607 | |
1aea3bb8 | 3608 | insn->opcode[0].word |= 0x80 | (mod << 3) | arf; |
39bec121 TW |
3609 | |
3610 | return 1; | |
3611 | } | |
3612 | ||
3613 | static int | |
5a49b8ac AM |
3614 | encode_integer (tic54x_insn *insn, |
3615 | struct opstruct *operand, | |
3616 | int which, | |
3617 | int min, | |
3618 | int max, | |
3619 | unsigned short mask) | |
39bec121 TW |
3620 | { |
3621 | long parse, integer; | |
3622 | ||
3623 | insn->opcode[which].addr_expr = operand->exp; | |
3624 | ||
3625 | if (operand->exp.X_op == O_constant) | |
3626 | { | |
3627 | parse = operand->exp.X_add_number; | |
d0313fb7 | 3628 | /* Hack -- fixup for 16-bit hex quantities that get converted positive |
9a736b6b | 3629 | instead of negative. */ |
39bec121 | 3630 | if ((parse & 0x8000) && min == -32768 && max == 32767) |
9a736b6b | 3631 | integer = (short) parse; |
39bec121 | 3632 | else |
9a736b6b | 3633 | integer = parse; |
39bec121 TW |
3634 | |
3635 | if (integer >= min && integer <= max) | |
9a736b6b NC |
3636 | { |
3637 | insn->opcode[which].word |= (integer & mask); | |
3638 | return 1; | |
3639 | } | |
1aea3bb8 | 3640 | as_bad (_("Operand '%s' out of range (%d <= x <= %d)"), |
9a736b6b | 3641 | operand->buf, min, max); |
39bec121 TW |
3642 | } |
3643 | else | |
3644 | { | |
3645 | if (insn->opcode[which].addr_expr.X_op == O_constant) | |
9a736b6b NC |
3646 | { |
3647 | insn->opcode[which].word |= | |
3648 | insn->opcode[which].addr_expr.X_add_number & mask; | |
3649 | } | |
39bec121 | 3650 | else |
9a736b6b NC |
3651 | { |
3652 | /* Do the fixup later; just store the expression. */ | |
3653 | bfd_reloc_code_real_type rtype = | |
3654 | (mask == 0x1FF ? BFD_RELOC_TIC54X_PARTMS9 : | |
3655 | mask == 0xFFFF ? BFD_RELOC_TIC54X_16_OF_23 : | |
3656 | mask == 0x7F ? BFD_RELOC_TIC54X_PARTLS7 : BFD_RELOC_8); | |
3657 | int size = (mask == 0x1FF || mask == 0xFFFF) ? 2 : 1; | |
3658 | ||
3659 | if (rtype == BFD_RELOC_8) | |
3660 | as_bad (_("Error in relocation handling")); | |
3661 | ||
3662 | insn->opcode[which].r_nchars = size; | |
3663 | insn->opcode[which].r_type = rtype; | |
3664 | insn->opcode[which].unresolved = 1; | |
3665 | } | |
39bec121 TW |
3666 | |
3667 | return 1; | |
3668 | } | |
3669 | ||
3670 | return 0; | |
3671 | } | |
3672 | ||
3673 | static int | |
5a49b8ac | 3674 | encode_condition (tic54x_insn *insn, struct opstruct *operand) |
39bec121 | 3675 | { |
1aea3bb8 | 3676 | symbol *cc = (symbol *) hash_find (cc_hash, operand->buf); |
39bec121 TW |
3677 | if (!cc) |
3678 | { | |
3679 | as_bad (_("Unrecognized condition code \"%s\""), operand->buf); | |
3680 | return 0; | |
3681 | } | |
3682 | #define CC_GROUP 0x40 | |
3683 | #define CC_ACC 0x08 | |
3684 | #define CATG_A1 0x07 | |
3685 | #define CATG_B1 0x30 | |
3686 | #define CATG_A2 0x30 | |
3687 | #define CATG_B2 0x0C | |
3688 | #define CATG_C2 0x03 | |
d0313fb7 | 3689 | /* Disallow group 1 conditions mixed with group 2 conditions |
39bec121 | 3690 | if group 1, allow only one category A and one category B |
d0313fb7 | 3691 | if group 2, allow only one each of category A, B, and C. */ |
39bec121 TW |
3692 | if (((insn->opcode[0].word & 0xFF) != 0)) |
3693 | { | |
3694 | if ((insn->opcode[0].word & CC_GROUP) != (cc->value & CC_GROUP)) | |
9a736b6b NC |
3695 | { |
3696 | as_bad (_("Condition \"%s\" does not match preceding group"), | |
3697 | operand->buf); | |
3698 | return 0; | |
3699 | } | |
39bec121 | 3700 | if (insn->opcode[0].word & CC_GROUP) |
9a736b6b NC |
3701 | { |
3702 | if ((insn->opcode[0].word & CC_ACC) != (cc->value & CC_ACC)) | |
3703 | { | |
3704 | as_bad (_("Condition \"%s\" uses a different accumulator from " | |
3705 | "a preceding condition"), | |
3706 | operand->buf); | |
3707 | return 0; | |
3708 | } | |
3709 | if ((insn->opcode[0].word & CATG_A1) && (cc->value & CATG_A1)) | |
3710 | { | |
3711 | as_bad (_("Only one comparison conditional allowed")); | |
3712 | return 0; | |
3713 | } | |
3714 | if ((insn->opcode[0].word & CATG_B1) && (cc->value & CATG_B1)) | |
3715 | { | |
3716 | as_bad (_("Only one overflow conditional allowed")); | |
3717 | return 0; | |
3718 | } | |
3719 | } | |
f1e7a2c9 NC |
3720 | else if ( ((insn->opcode[0].word & CATG_A2) && (cc->value & CATG_A2)) |
3721 | || ((insn->opcode[0].word & CATG_B2) && (cc->value & CATG_B2)) | |
3722 | || ((insn->opcode[0].word & CATG_C2) && (cc->value & CATG_C2))) | |
9a736b6b NC |
3723 | { |
3724 | as_bad (_("Duplicate %s conditional"), operand->buf); | |
3725 | return 0; | |
3726 | } | |
39bec121 TW |
3727 | } |
3728 | ||
3729 | insn->opcode[0].word |= cc->value; | |
3730 | return 1; | |
3731 | } | |
3732 | ||
3733 | static int | |
5a49b8ac | 3734 | encode_cc3 (tic54x_insn *insn, struct opstruct *operand) |
39bec121 | 3735 | { |
1aea3bb8 | 3736 | symbol *cc3 = (symbol *) hash_find (cc3_hash, operand->buf); |
39bec121 TW |
3737 | int value = cc3 ? cc3->value : operand->exp.X_add_number << 8; |
3738 | ||
3739 | if ((value & 0x0300) != value) | |
3740 | { | |
3741 | as_bad (_("Unrecognized condition code \"%s\""), operand->buf); | |
3742 | return 0; | |
3743 | } | |
3744 | insn->opcode[0].word |= value; | |
3745 | return 1; | |
3746 | } | |
3747 | ||
3748 | static int | |
5a49b8ac | 3749 | encode_arx (tic54x_insn *insn, struct opstruct *operand) |
39bec121 TW |
3750 | { |
3751 | int arf = strlen (operand->buf) >= 3 ? operand->buf[2] - '0' : -1; | |
f1e7a2c9 | 3752 | |
39bec121 TW |
3753 | if (strncasecmp ("ar", operand->buf, 2) || arf < 0 || arf > 7) |
3754 | { | |
3755 | as_bad (_("Invalid auxiliary register (use AR0-AR7)")); | |
3756 | return 0; | |
3757 | } | |
3758 | insn->opcode[0].word |= arf; | |
3759 | return 1; | |
3760 | } | |
3761 | ||
3762 | static int | |
5a49b8ac | 3763 | encode_cc2 (tic54x_insn *insn, struct opstruct *operand) |
39bec121 | 3764 | { |
1aea3bb8 | 3765 | symbol *cc2 = (symbol *) hash_find (cc2_hash, operand->buf); |
f1e7a2c9 | 3766 | |
39bec121 TW |
3767 | if (!cc2) |
3768 | { | |
3769 | as_bad (_("Unrecognized condition code \"%s\""), operand->buf); | |
3770 | return 0; | |
3771 | } | |
3772 | insn->opcode[0].word |= cc2->value; | |
3773 | return 1; | |
3774 | } | |
3775 | ||
3776 | static int | |
5a49b8ac | 3777 | encode_operand (tic54x_insn *insn, enum optype type, struct opstruct *operand) |
39bec121 | 3778 | { |
6e917903 | 3779 | int ext = (insn->tm->flags & FL_EXT) != 0; |
39bec121 TW |
3780 | |
3781 | if (type == OP_MMR && operand->exp.X_op != O_constant) | |
3782 | { | |
d0313fb7 | 3783 | /* Disallow long-constant addressing for memory-mapped addressing. */ |
39bec121 | 3784 | if (insn->is_lkaddr) |
9a736b6b NC |
3785 | { |
3786 | as_bad (_("lk addressing modes are invalid for memory-mapped " | |
3787 | "register addressing")); | |
3788 | return 0; | |
3789 | } | |
39bec121 | 3790 | type = OP_Smem; |
d0313fb7 | 3791 | /* Warn about *+ARx when used with MMR operands. */ |
39bec121 | 3792 | if (strncasecmp (operand->buf, "*+ar", 4) == 0) |
9a736b6b NC |
3793 | { |
3794 | as_warn (_("Address mode *+ARx is not allowed in memory-mapped " | |
3795 | "register addressing. Resulting behavior is " | |
3796 | "undefined.")); | |
3797 | } | |
39bec121 TW |
3798 | } |
3799 | ||
3800 | switch (type) | |
3801 | { | |
3802 | case OP_None: | |
3803 | return 1; | |
3804 | case OP_dmad: | |
d0313fb7 | 3805 | /* 16-bit immediate value. */ |
39bec121 TW |
3806 | return encode_dmad (insn, operand, 0); |
3807 | case OP_SRC: | |
3882b010 | 3808 | if (TOUPPER (*operand->buf) == 'B') |
9a736b6b NC |
3809 | { |
3810 | insn->opcode[ext ? (1 + insn->is_lkaddr) : 0].word |= (1 << 9); | |
3811 | if (insn->using_default_dst) | |
3812 | insn->opcode[ext ? (1 + insn->is_lkaddr) : 0].word |= (1 << 8); | |
3813 | } | |
39bec121 TW |
3814 | return 1; |
3815 | case OP_RND: | |
5f5e16be | 3816 | /* Make sure this agrees with the OP_DST operand. */ |
3882b010 | 3817 | if (!((TOUPPER (operand->buf[0]) == 'B') ^ |
9a736b6b NC |
3818 | ((insn->opcode[0].word & (1 << 8)) != 0))) |
3819 | { | |
3820 | as_bad (_("Destination accumulator for each part of this parallel " | |
3821 | "instruction must be different")); | |
3822 | return 0; | |
3823 | } | |
39bec121 TW |
3824 | return 1; |
3825 | case OP_SRC1: | |
3826 | case OP_DST: | |
3882b010 | 3827 | if (TOUPPER (operand->buf[0]) == 'B') |
9a736b6b | 3828 | insn->opcode[ext ? (1 + insn->is_lkaddr) : 0].word |= (1 << 8); |
39bec121 TW |
3829 | return 1; |
3830 | case OP_Xmem: | |
3831 | case OP_Ymem: | |
1aea3bb8 | 3832 | { |
9a736b6b NC |
3833 | int mod = (operand->buf[4] == '\0' ? 0 : /* *arx */ |
3834 | operand->buf[4] == '-' ? 1 : /* *arx- */ | |
3835 | operand->buf[5] == '\0' ? 2 : 3); /* *arx+, *arx+0% */ | |
1aea3bb8 NC |
3836 | int arf = operand->buf[3] - '0' - 2; |
3837 | int code = (mod << 2) | arf; | |
3838 | insn->opcode[0].word |= (code << (type == OP_Xmem ? 4 : 0)); | |
3839 | return 1; | |
3840 | } | |
39bec121 TW |
3841 | case OP_Lmem: |
3842 | case OP_Smem: | |
3843 | if (!is_indirect (operand)) | |
9a736b6b NC |
3844 | return encode_address (insn, operand); |
3845 | /* Fall through. */ | |
39bec121 TW |
3846 | case OP_Sind: |
3847 | return encode_indirect (insn, operand); | |
3848 | case OP_xpmad_ms7: | |
3849 | return encode_dmad (insn, operand, 2); | |
3850 | case OP_xpmad: | |
3851 | return encode_dmad (insn, operand, 1); | |
3852 | case OP_PA: | |
3853 | case OP_pmad: | |
3854 | return encode_dmad (insn, operand, 0); | |
3855 | case OP_ARX: | |
3856 | return encode_arx (insn, operand); | |
3857 | case OP_MMRX: | |
3858 | case OP_MMRY: | |
3859 | case OP_MMR: | |
1aea3bb8 NC |
3860 | { |
3861 | int value = operand->exp.X_add_number; | |
3862 | ||
3863 | if (type == OP_MMR) | |
3864 | insn->opcode[0].word |= value; | |
3865 | else | |
3866 | { | |
3867 | if (value < 16 || value > 24) | |
3868 | { | |
3869 | as_bad (_("Memory mapped register \"%s\" out of range"), | |
3870 | operand->buf); | |
3871 | return 0; | |
3872 | } | |
3873 | if (type == OP_MMRX) | |
3874 | insn->opcode[0].word |= (value - 16) << 4; | |
3875 | else | |
3876 | insn->opcode[0].word |= (value - 16); | |
3877 | } | |
3878 | return 1; | |
39bec121 | 3879 | } |
39bec121 TW |
3880 | case OP_B: |
3881 | case OP_A: | |
3882 | return 1; | |
3883 | case OP_SHFT: | |
1aea3bb8 | 3884 | return encode_integer (insn, operand, ext + insn->is_lkaddr, |
9a736b6b | 3885 | 0, 15, 0xF); |
39bec121 | 3886 | case OP_SHIFT: |
1aea3bb8 | 3887 | return encode_integer (insn, operand, ext + insn->is_lkaddr, |
9a736b6b | 3888 | -16, 15, 0x1F); |
39bec121 TW |
3889 | case OP_lk: |
3890 | return encode_integer (insn, operand, 1 + insn->is_lkaddr, | |
9a736b6b | 3891 | -32768, 32767, 0xFFFF); |
39bec121 TW |
3892 | case OP_CC: |
3893 | return encode_condition (insn, operand); | |
3894 | case OP_CC2: | |
3895 | return encode_cc2 (insn, operand); | |
3896 | case OP_CC3: | |
3897 | return encode_cc3 (insn, operand); | |
3898 | case OP_BITC: | |
3899 | return encode_integer (insn, operand, 0, 0, 15, 0xF); | |
3900 | case OP_k8: | |
3901 | return encode_integer (insn, operand, 0, -128, 127, 0xFF); | |
3902 | case OP_123: | |
1aea3bb8 NC |
3903 | { |
3904 | int value = operand->exp.X_add_number; | |
3905 | int code; | |
3906 | if (value < 1 || value > 3) | |
3907 | { | |
3908 | as_bad (_("Invalid operand (use 1, 2, or 3)")); | |
3909 | return 0; | |
3910 | } | |
3911 | code = value == 1 ? 0 : value == 2 ? 0x2 : 0x1; | |
3912 | insn->opcode[0].word |= (code << 8); | |
3913 | return 1; | |
3914 | } | |
39bec121 TW |
3915 | case OP_031: |
3916 | return encode_integer (insn, operand, 0, 0, 31, 0x1F); | |
3917 | case OP_k8u: | |
3918 | return encode_integer (insn, operand, 0, 0, 255, 0xFF); | |
3919 | case OP_lku: | |
1aea3bb8 | 3920 | return encode_integer (insn, operand, 1 + insn->is_lkaddr, |
9a736b6b | 3921 | 0, 65535, 0xFFFF); |
39bec121 | 3922 | case OP_SBIT: |
1aea3bb8 NC |
3923 | { |
3924 | symbol *sbit = (symbol *) hash_find (sbit_hash, operand->buf); | |
3925 | int value = is_absolute (operand) ? | |
3926 | operand->exp.X_add_number : (sbit ? sbit->value : -1); | |
3927 | int reg = 0; | |
3928 | ||
3929 | if (insn->opcount == 1) | |
3930 | { | |
3931 | if (!sbit) | |
3932 | { | |
3933 | as_bad (_("A status register or status bit name is required")); | |
3934 | return 0; | |
3935 | } | |
3936 | /* Guess the register based on the status bit; "ovb" is the last | |
3937 | status bit defined for st0. */ | |
3938 | if (sbit > (symbol *) hash_find (sbit_hash, "ovb")) | |
3939 | reg = 1; | |
3940 | } | |
3941 | if (value == -1) | |
3942 | { | |
3943 | as_bad (_("Unrecognized status bit \"%s\""), operand->buf); | |
3944 | return 0; | |
3945 | } | |
3946 | insn->opcode[0].word |= value; | |
3947 | insn->opcode[0].word |= (reg << 9); | |
3948 | return 1; | |
3949 | } | |
39bec121 TW |
3950 | case OP_N: |
3951 | if (strcasecmp (operand->buf, "st0") == 0 | |
9a736b6b NC |
3952 | || strcasecmp (operand->buf, "st1") == 0) |
3953 | { | |
3954 | insn->opcode[0].word |= | |
3955 | ((unsigned short) (operand->buf[2] - '0')) << 9; | |
3956 | return 1; | |
3957 | } | |
39bec121 | 3958 | else if (operand->exp.X_op == O_constant |
9a736b6b NC |
3959 | && (operand->exp.X_add_number == 0 |
3960 | || operand->exp.X_add_number == 1)) | |
3961 | { | |
3962 | insn->opcode[0].word |= | |
3963 | ((unsigned short) (operand->exp.X_add_number)) << 9; | |
3964 | return 1; | |
3965 | } | |
39bec121 TW |
3966 | as_bad (_("Invalid status register \"%s\""), operand->buf); |
3967 | return 0; | |
3968 | case OP_k5: | |
3969 | return encode_integer (insn, operand, 0, -16, 15, 0x1F); | |
3970 | case OP_k3: | |
3971 | return encode_integer (insn, operand, 0, 0, 7, 0x7); | |
3972 | case OP_k9: | |
3973 | return encode_integer (insn, operand, 0, 0, 0x1FF, 0x1FF); | |
3974 | case OP_12: | |
1aea3bb8 | 3975 | if (operand->exp.X_add_number != 1 |
9a736b6b NC |
3976 | && operand->exp.X_add_number != 2) |
3977 | { | |
3978 | as_bad (_("Operand \"%s\" out of range (use 1 or 2)"), operand->buf); | |
3979 | return 0; | |
3980 | } | |
39bec121 TW |
3981 | insn->opcode[0].word |= (operand->exp.X_add_number - 1) << 9; |
3982 | return 1; | |
3983 | case OP_16: | |
3984 | case OP_T: | |
3985 | case OP_TS: | |
3986 | case OP_ASM: | |
3987 | case OP_TRN: | |
3988 | case OP_DP: | |
3989 | case OP_ARP: | |
d0313fb7 | 3990 | /* No encoding necessary. */ |
39bec121 TW |
3991 | return 1; |
3992 | default: | |
3993 | return 0; | |
3994 | } | |
3995 | ||
3996 | return 1; | |
3997 | } | |
3998 | ||
3999 | static void | |
5a49b8ac | 4000 | emit_insn (tic54x_insn *insn) |
39bec121 TW |
4001 | { |
4002 | int i; | |
6e917903 TW |
4003 | flagword oldflags = bfd_get_section_flags (stdoutput, now_seg); |
4004 | flagword flags = oldflags | SEC_CODE; | |
4005 | ||
4006 | if (! bfd_set_section_flags (stdoutput, now_seg, flags)) | |
4007 | as_warn (_("error setting flags for \"%s\": %s"), | |
4008 | bfd_section_name (stdoutput, now_seg), | |
4009 | bfd_errmsg (bfd_get_error ())); | |
1aea3bb8 NC |
4010 | |
4011 | for (i = 0; i < insn->words; i++) | |
39bec121 | 4012 | { |
1aea3bb8 | 4013 | int size = (insn->opcode[i].unresolved |
9a736b6b | 4014 | && insn->opcode[i].r_type == BFD_RELOC_TIC54X_23) ? 4 : 2; |
39bec121 TW |
4015 | char *p = frag_more (size); |
4016 | ||
4017 | if (size == 2) | |
9a736b6b | 4018 | md_number_to_chars (p, (valueT) insn->opcode[i].word, 2); |
39bec121 | 4019 | else |
9a736b6b | 4020 | md_number_to_chars (p, (valueT) insn->opcode[i].word << 16, 4); |
1aea3bb8 | 4021 | |
39bec121 | 4022 | if (insn->opcode[i].unresolved) |
9a736b6b NC |
4023 | fix_new_exp (frag_now, p - frag_now->fr_literal, |
4024 | insn->opcode[i].r_nchars, &insn->opcode[i].addr_expr, | |
b34976b6 | 4025 | FALSE, insn->opcode[i].r_type); |
39bec121 TW |
4026 | } |
4027 | } | |
4028 | ||
1aea3bb8 | 4029 | /* Convert the operand strings into appropriate opcode values |
d0313fb7 | 4030 | return the total number of words used by the instruction. */ |
9a736b6b | 4031 | |
39bec121 | 4032 | static int |
5a49b8ac | 4033 | build_insn (tic54x_insn *insn) |
39bec121 TW |
4034 | { |
4035 | int i; | |
4036 | ||
d0313fb7 | 4037 | /* Only non-parallel instructions support lk addressing. */ |
6e917903 | 4038 | if (!(insn->tm->flags & FL_PAR)) |
39bec121 | 4039 | { |
1aea3bb8 | 4040 | for (i = 0; i < insn->opcount; i++) |
9a736b6b NC |
4041 | { |
4042 | if ((OPTYPE (insn->operands[i].type) == OP_Smem | |
4043 | || OPTYPE (insn->operands[i].type) == OP_Lmem | |
4044 | || OPTYPE (insn->operands[i].type) == OP_Sind) | |
4045 | && strchr (insn->operands[i].buf, '(') | |
4046 | /* Don't mistake stack-relative addressing for lk addressing. */ | |
4047 | && strncasecmp (insn->operands[i].buf, "*sp (", 4) != 0) | |
4048 | { | |
4049 | insn->is_lkaddr = 1; | |
4050 | insn->lkoperand = i; | |
4051 | break; | |
4052 | } | |
4053 | } | |
39bec121 | 4054 | } |
6e917903 | 4055 | insn->words = insn->tm->words + insn->is_lkaddr; |
39bec121 | 4056 | |
6e917903 TW |
4057 | insn->opcode[0].word = insn->tm->opcode; |
4058 | if (insn->tm->flags & FL_EXT) | |
1aea3bb8 | 4059 | insn->opcode[1 + insn->is_lkaddr].word = insn->tm->opcode2; |
39bec121 | 4060 | |
9a736b6b | 4061 | for (i = 0; i < insn->opcount; i++) |
39bec121 TW |
4062 | { |
4063 | enum optype type = insn->operands[i].type; | |
f1e7a2c9 | 4064 | |
39bec121 | 4065 | if (!encode_operand (insn, type, &insn->operands[i])) |
9a736b6b | 4066 | return 0; |
39bec121 | 4067 | } |
6e917903 | 4068 | if (insn->tm->flags & FL_PAR) |
9a736b6b NC |
4069 | for (i = 0; i < insn->paropcount; i++) |
4070 | { | |
4071 | enum optype partype = insn->paroperands[i].type; | |
f1e7a2c9 | 4072 | |
9a736b6b NC |
4073 | if (!encode_operand (insn, partype, &insn->paroperands[i])) |
4074 | return 0; | |
4075 | } | |
39bec121 TW |
4076 | |
4077 | emit_insn (insn); | |
4078 | ||
4079 | return insn->words; | |
4080 | } | |
4081 | ||
4082 | static int | |
5a49b8ac | 4083 | optimize_insn (tic54x_insn *insn) |
39bec121 | 4084 | { |
1aea3bb8 | 4085 | /* Optimize some instructions, helping out the brain-dead programmer. */ |
39bec121 TW |
4086 | #define is_zero(op) ((op).exp.X_op == O_constant && (op).exp.X_add_number == 0) |
4087 | if (strcasecmp (insn->tm->name, "add") == 0) | |
4088 | { | |
9a736b6b NC |
4089 | if (insn->opcount > 1 |
4090 | && is_accumulator (&insn->operands[insn->opcount - 2]) | |
4091 | && is_accumulator (&insn->operands[insn->opcount - 1]) | |
4092 | && strcasecmp (insn->operands[insn->opcount - 2].buf, | |
4093 | insn->operands[insn->opcount - 1].buf) == 0) | |
4094 | { | |
4095 | --insn->opcount; | |
4096 | insn->using_default_dst = 1; | |
4097 | return 1; | |
4098 | } | |
1aea3bb8 | 4099 | |
d0313fb7 | 4100 | /* Try to collapse if Xmem and shift count is zero. */ |
9a736b6b NC |
4101 | if ((OPTYPE (insn->tm->operand_types[0]) == OP_Xmem |
4102 | && OPTYPE (insn->tm->operand_types[1]) == OP_SHFT | |
4103 | && is_zero (insn->operands[1])) | |
4104 | /* Or if Smem, shift is zero or absent, and SRC == DST. */ | |
4105 | || (OPTYPE (insn->tm->operand_types[0]) == OP_Smem | |
4106 | && OPTYPE (insn->tm->operand_types[1]) == OP_SHIFT | |
4107 | && is_type (&insn->operands[1], OP_SHIFT) | |
4108 | && is_zero (insn->operands[1]) && insn->opcount == 3)) | |
4109 | { | |
4110 | insn->operands[1] = insn->operands[2]; | |
4111 | insn->opcount = 2; | |
4112 | return 1; | |
4113 | } | |
39bec121 TW |
4114 | } |
4115 | else if (strcasecmp (insn->tm->name, "ld") == 0) | |
4116 | { | |
4117 | if (insn->opcount == 3 && insn->operands[0].type != OP_SRC) | |
9a736b6b NC |
4118 | { |
4119 | if ((OPTYPE (insn->tm->operand_types[1]) == OP_SHIFT | |
4120 | || OPTYPE (insn->tm->operand_types[1]) == OP_SHFT) | |
4121 | && is_zero (insn->operands[1]) | |
4122 | && (OPTYPE (insn->tm->operand_types[0]) != OP_lk | |
4123 | || (insn->operands[0].exp.X_op == O_constant | |
4124 | && insn->operands[0].exp.X_add_number <= 255 | |
4125 | && insn->operands[0].exp.X_add_number >= 0))) | |
4126 | { | |
4127 | insn->operands[1] = insn->operands[2]; | |
4128 | insn->opcount = 2; | |
4129 | return 1; | |
4130 | } | |
4131 | } | |
4132 | } | |
4133 | else if (strcasecmp (insn->tm->name, "sth") == 0 | |
4134 | || strcasecmp (insn->tm->name, "stl") == 0) | |
4135 | { | |
4136 | if ((OPTYPE (insn->tm->operand_types[1]) == OP_SHIFT | |
4137 | || OPTYPE (insn->tm->operand_types[1]) == OP_SHFT) | |
4138 | && is_zero (insn->operands[1])) | |
4139 | { | |
4140 | insn->operands[1] = insn->operands[2]; | |
4141 | insn->opcount = 2; | |
4142 | return 1; | |
4143 | } | |
39bec121 TW |
4144 | } |
4145 | else if (strcasecmp (insn->tm->name, "sub") == 0) | |
4146 | { | |
9a736b6b NC |
4147 | if (insn->opcount > 1 |
4148 | && is_accumulator (&insn->operands[insn->opcount - 2]) | |
4149 | && is_accumulator (&insn->operands[insn->opcount - 1]) | |
4150 | && strcasecmp (insn->operands[insn->opcount - 2].buf, | |
4151 | insn->operands[insn->opcount - 1].buf) == 0) | |
4152 | { | |
4153 | --insn->opcount; | |
4154 | insn->using_default_dst = 1; | |
4155 | return 1; | |
4156 | } | |
4157 | ||
f1e7a2c9 | 4158 | if ( ((OPTYPE (insn->tm->operand_types[0]) == OP_Smem |
9a736b6b NC |
4159 | && OPTYPE (insn->tm->operand_types[1]) == OP_SHIFT) |
4160 | || (OPTYPE (insn->tm->operand_types[0]) == OP_Xmem | |
f1e7a2c9 | 4161 | && OPTYPE (insn->tm->operand_types[1]) == OP_SHFT)) |
9a736b6b NC |
4162 | && is_zero (insn->operands[1]) |
4163 | && insn->opcount == 3) | |
4164 | { | |
4165 | insn->operands[1] = insn->operands[2]; | |
4166 | insn->opcount = 2; | |
4167 | return 1; | |
4168 | } | |
39bec121 TW |
4169 | } |
4170 | return 0; | |
4171 | } | |
4172 | ||
d0313fb7 | 4173 | /* Find a matching template if possible, and get the operand strings. */ |
9a736b6b | 4174 | |
39bec121 | 4175 | static int |
5a49b8ac | 4176 | tic54x_parse_insn (tic54x_insn *insn, char *line) |
39bec121 | 4177 | { |
d3ce72d0 | 4178 | insn->tm = (insn_template *) hash_find (op_hash, insn->mnemonic); |
39bec121 TW |
4179 | if (!insn->tm) |
4180 | { | |
4181 | as_bad (_("Unrecognized instruction \"%s\""), insn->mnemonic); | |
4182 | return 0; | |
4183 | } | |
4184 | ||
4185 | insn->opcount = get_operands (insn->operands, line); | |
4186 | if (insn->opcount < 0) | |
1aea3bb8 | 4187 | return 0; |
39bec121 | 4188 | |
d0313fb7 | 4189 | /* Check each variation of operands for this mnemonic. */ |
39bec121 TW |
4190 | while (insn->tm->name && strcasecmp (insn->tm->name, insn->mnemonic) == 0) |
4191 | { | |
9a736b6b NC |
4192 | if (insn->opcount >= insn->tm->minops |
4193 | && insn->opcount <= insn->tm->maxops | |
4194 | && operands_match (insn, &insn->operands[0], insn->opcount, | |
4195 | insn->tm->operand_types, | |
4196 | insn->tm->minops, insn->tm->maxops)) | |
4197 | { | |
4198 | /* SUCCESS! now try some optimizations. */ | |
4199 | if (optimize_insn (insn)) | |
4200 | { | |
d3ce72d0 NC |
4201 | insn->tm = (insn_template *) hash_find (op_hash, |
4202 | insn->mnemonic); | |
9a736b6b NC |
4203 | continue; |
4204 | } | |
39bec121 | 4205 | |
9a736b6b NC |
4206 | return 1; |
4207 | } | |
39bec121 TW |
4208 | ++(insn->tm); |
4209 | } | |
1aea3bb8 NC |
4210 | as_bad (_("Unrecognized operand list '%s' for instruction '%s'"), |
4211 | line, insn->mnemonic); | |
39bec121 TW |
4212 | return 0; |
4213 | } | |
4214 | ||
d0313fb7 NC |
4215 | /* We set this in start_line_hook, 'cause if we do a line replacement, we |
4216 | won't be able to see the next line. */ | |
39bec121 | 4217 | static int parallel_on_next_line_hint = 0; |
9a736b6b | 4218 | |
39bec121 | 4219 | /* See if this is part of a parallel instruction |
d0313fb7 | 4220 | Look for a subsequent line starting with "||". */ |
9a736b6b | 4221 | |
39bec121 | 4222 | static int |
5a49b8ac | 4223 | next_line_shows_parallel (char *next_line) |
39bec121 | 4224 | { |
9a736b6b | 4225 | /* Look for the second half. */ |
3882b010 | 4226 | while (ISSPACE (*next_line)) |
39bec121 TW |
4227 | ++next_line; |
4228 | ||
9a736b6b NC |
4229 | return (next_line[0] == PARALLEL_SEPARATOR |
4230 | && next_line[1] == PARALLEL_SEPARATOR); | |
39bec121 TW |
4231 | } |
4232 | ||
4233 | static int | |
5a49b8ac | 4234 | tic54x_parse_parallel_insn_firstline (tic54x_insn *insn, char *line) |
39bec121 | 4235 | { |
d3ce72d0 | 4236 | insn->tm = (insn_template *) hash_find (parop_hash, insn->mnemonic); |
6e917903 | 4237 | if (!insn->tm) |
39bec121 | 4238 | { |
1aea3bb8 | 4239 | as_bad (_("Unrecognized parallel instruction \"%s\""), |
9a736b6b | 4240 | insn->mnemonic); |
39bec121 TW |
4241 | return 0; |
4242 | } | |
4243 | ||
6e917903 TW |
4244 | while (insn->tm->name && strcasecmp (insn->tm->name, |
4245 | insn->mnemonic) == 0) | |
39bec121 TW |
4246 | { |
4247 | insn->opcount = get_operands (insn->operands, line); | |
4248 | if (insn->opcount < 0) | |
9a736b6b NC |
4249 | return 0; |
4250 | if (insn->opcount == 2 | |
4251 | && operands_match (insn, &insn->operands[0], insn->opcount, | |
6e917903 | 4252 | insn->tm->operand_types, 2, 2)) |
9a736b6b NC |
4253 | { |
4254 | return 1; | |
4255 | } | |
6e917903 | 4256 | ++(insn->tm); |
39bec121 | 4257 | } |
d0313fb7 | 4258 | /* Didn't find a matching parallel; try for a normal insn. */ |
39bec121 TW |
4259 | return 0; |
4260 | } | |
4261 | ||
d0313fb7 | 4262 | /* Parse the second line of a two-line parallel instruction. */ |
9a736b6b | 4263 | |
39bec121 | 4264 | static int |
5a49b8ac | 4265 | tic54x_parse_parallel_insn_lastline (tic54x_insn *insn, char *line) |
39bec121 TW |
4266 | { |
4267 | int valid_mnemonic = 0; | |
1aea3bb8 | 4268 | |
39bec121 | 4269 | insn->paropcount = get_operands (insn->paroperands, line); |
6e917903 | 4270 | while (insn->tm->name && strcasecmp (insn->tm->name, |
9a736b6b | 4271 | insn->mnemonic) == 0) |
39bec121 | 4272 | { |
6e917903 | 4273 | if (strcasecmp (insn->tm->parname, insn->parmnemonic) == 0) |
9a736b6b NC |
4274 | { |
4275 | valid_mnemonic = 1; | |
f1e7a2c9 | 4276 | |
6e917903 TW |
4277 | if (insn->paropcount >= insn->tm->minops |
4278 | && insn->paropcount <= insn->tm->maxops | |
9a736b6b NC |
4279 | && operands_match (insn, insn->paroperands, |
4280 | insn->paropcount, | |
6e917903 TW |
4281 | insn->tm->paroperand_types, |
4282 | insn->tm->minops, insn->tm->maxops)) | |
f1e7a2c9 | 4283 | return 1; |
9a736b6b | 4284 | } |
6e917903 | 4285 | ++(insn->tm); |
39bec121 TW |
4286 | } |
4287 | if (valid_mnemonic) | |
4288 | as_bad (_("Invalid operand (s) for parallel instruction \"%s\""), | |
9a736b6b | 4289 | insn->parmnemonic); |
39bec121 TW |
4290 | else |
4291 | as_bad (_("Unrecognized parallel instruction combination \"%s || %s\""), | |
9a736b6b | 4292 | insn->mnemonic, insn->parmnemonic); |
39bec121 TW |
4293 | |
4294 | return 0; | |
4295 | } | |
4296 | ||
d0313fb7 | 4297 | /* If quotes found, return copy of line up to closing quote; |
9a736b6b NC |
4298 | otherwise up until terminator. |
4299 | If it's a string, pass as-is; otherwise attempt substitution symbol | |
d0313fb7 | 4300 | replacement on the value. */ |
9a736b6b | 4301 | |
39bec121 | 4302 | static char * |
5a49b8ac | 4303 | subsym_get_arg (char *line, char *terminators, char **str, int nosub) |
39bec121 TW |
4304 | { |
4305 | char *ptr = line; | |
4306 | char *endp; | |
4307 | int is_string = *line == '"'; | |
3882b010 | 4308 | int is_char = ISDIGIT (*line); |
39bec121 TW |
4309 | |
4310 | if (is_char) | |
4311 | { | |
3882b010 | 4312 | while (ISDIGIT (*ptr)) |
9a736b6b | 4313 | ++ptr; |
39bec121 TW |
4314 | endp = ptr; |
4315 | *str = xmalloc (ptr - line + 1); | |
4316 | strncpy (*str, line, ptr - line); | |
4317 | (*str)[ptr - line] = 0; | |
4318 | } | |
4319 | else if (is_string) | |
4320 | { | |
4321 | char *savedp = input_line_pointer; | |
4322 | int len; | |
f1e7a2c9 | 4323 | |
39bec121 TW |
4324 | input_line_pointer = ptr; |
4325 | *str = demand_copy_C_string (&len); | |
4326 | endp = input_line_pointer; | |
4327 | input_line_pointer = savedp; | |
4328 | ||
d0313fb7 | 4329 | /* Do forced substitutions if requested. */ |
39bec121 | 4330 | if (!nosub && **str == ':') |
9a736b6b | 4331 | *str = subsym_substitute (*str, 1); |
39bec121 TW |
4332 | } |
4333 | else | |
4334 | { | |
4335 | char *term = terminators; | |
4336 | char *value = NULL; | |
4337 | ||
4338 | while (*ptr && *ptr != *term) | |
9a736b6b NC |
4339 | { |
4340 | if (!*term) | |
4341 | { | |
4342 | term = terminators; | |
4343 | ++ptr; | |
4344 | } | |
4345 | else | |
4346 | ++term; | |
4347 | } | |
39bec121 TW |
4348 | endp = ptr; |
4349 | *str = xmalloc (ptr - line + 1); | |
4350 | strncpy (*str, line, ptr - line); | |
4351 | (*str)[ptr - line] = 0; | |
d0313fb7 | 4352 | /* Do simple substitution, if available. */ |
39bec121 | 4353 | if (!nosub && (value = subsym_lookup (*str, macro_level)) != NULL) |
1aea3bb8 | 4354 | *str = value; |
39bec121 TW |
4355 | } |
4356 | ||
4357 | return endp; | |
4358 | } | |
4359 | ||
d0313fb7 | 4360 | /* Replace the given substitution string. |
39bec121 TW |
4361 | We start at the innermost macro level, so that existing locals remain local |
4362 | Note: we're treating macro args identically to .var's; I don't know if | |
d0313fb7 | 4363 | that's compatible w/TI's assembler. */ |
9a736b6b | 4364 | |
39bec121 | 4365 | static void |
5a49b8ac | 4366 | subsym_create_or_replace (char *name, char *value) |
39bec121 TW |
4367 | { |
4368 | int i; | |
4369 | ||
1aea3bb8 | 4370 | for (i = macro_level; i > 0; i--) |
39bec121 TW |
4371 | { |
4372 | if (hash_find (subsym_hash[i], name)) | |
9a736b6b NC |
4373 | { |
4374 | hash_replace (subsym_hash[i], name, value); | |
4375 | return; | |
4376 | } | |
39bec121 TW |
4377 | } |
4378 | if (hash_find (subsym_hash[0], name)) | |
4379 | hash_replace (subsym_hash[0], name, value); | |
4380 | else | |
4381 | hash_insert (subsym_hash[0], name, value); | |
4382 | } | |
4383 | ||
9a736b6b | 4384 | /* Look up the substitution string replacement for the given symbol. |
33b7f697 | 4385 | Start with the innermost macro substitution table given and work |
9a736b6b NC |
4386 | outwards. */ |
4387 | ||
39bec121 | 4388 | static char * |
5a49b8ac | 4389 | subsym_lookup (char *name, int nest_level) |
39bec121 TW |
4390 | { |
4391 | char *value = hash_find (subsym_hash[nest_level], name); | |
4392 | ||
4393 | if (value || nest_level == 0) | |
4394 | return value; | |
4395 | ||
1aea3bb8 | 4396 | return subsym_lookup (name, nest_level - 1); |
39bec121 TW |
4397 | } |
4398 | ||
d0313fb7 | 4399 | /* Do substitution-symbol replacement on the given line (recursively). |
1aea3bb8 | 4400 | return the argument if no substitution was done |
39bec121 TW |
4401 | |
4402 | Also look for built-in functions ($func (arg)) and local labels. | |
4403 | ||
d0313fb7 | 4404 | If FORCED is set, look for forced substitutions of the form ':SYMBOL:'. */ |
9a736b6b | 4405 | |
39bec121 | 4406 | static char * |
5a49b8ac | 4407 | subsym_substitute (char *line, int forced) |
39bec121 | 4408 | { |
d0313fb7 NC |
4409 | /* For each apparent symbol, see if it's a substitution symbol, and if so, |
4410 | replace it in the input. */ | |
9a736b6b NC |
4411 | char *replacement; /* current replacement for LINE. */ |
4412 | char *head; /* Start of line. */ | |
4413 | char *ptr; /* Current examination point. */ | |
4414 | int changed = 0; /* Did we make a substitution? */ | |
4415 | int eval_line = 0; /* Is this line a .eval/.asg statement? */ | |
4416 | int eval_symbol = 0; /* Are we in the middle of the symbol for | |
4417 | .eval/.asg? */ | |
39bec121 TW |
4418 | char *eval_end = NULL; |
4419 | int recurse = 1; | |
4420 | int line_conditional = 0; | |
4421 | char *tmp; | |
4422 | ||
d0313fb7 | 4423 | /* Work with a copy of the input line. */ |
39bec121 TW |
4424 | replacement = xmalloc (strlen (line) + 1); |
4425 | strcpy (replacement, line); | |
4426 | ||
4427 | ptr = head = replacement; | |
4428 | ||
d0313fb7 | 4429 | /* Flag lines where we might need to replace a single '=' with two; |
39bec121 | 4430 | GAS uses single '=' to assign macro args values, and possibly other |
d0313fb7 | 4431 | places, so limit what we replace. */ |
1aea3bb8 NC |
4432 | if (strstr (line, ".if") |
4433 | || strstr (line, ".elseif") | |
39bec121 | 4434 | || strstr (line, ".break")) |
f1e7a2c9 | 4435 | line_conditional = 1; |
39bec121 | 4436 | |
d0313fb7 NC |
4437 | /* Watch out for .eval, so that we avoid doing substitution on the |
4438 | symbol being assigned a value. */ | |
39bec121 | 4439 | if (strstr (line, ".eval") || strstr (line, ".asg")) |
1aea3bb8 | 4440 | eval_line = 1; |
39bec121 | 4441 | |
9a736b6b NC |
4442 | /* If it's a macro definition, don't do substitution on the argument |
4443 | names. */ | |
39bec121 TW |
4444 | if (strstr (line, ".macro")) |
4445 | return line; | |
4446 | ||
1aea3bb8 | 4447 | while (!is_end_of_line[(int) *ptr]) |
39bec121 TW |
4448 | { |
4449 | int current_char = *ptr; | |
4450 | ||
d0313fb7 | 4451 | /* Need to update this since LINE may have been modified. */ |
39bec121 | 4452 | if (eval_line) |
1aea3bb8 | 4453 | eval_end = strrchr (ptr, ','); |
39bec121 | 4454 | |
d0313fb7 | 4455 | /* Replace triple double quotes with bounding quote/escapes. */ |
39bec121 | 4456 | if (current_char == '"' && ptr[1] == '"' && ptr[2] == '"') |
9a736b6b NC |
4457 | { |
4458 | ptr[1] = '\\'; | |
4459 | tmp = strstr (ptr + 2, "\"\"\""); | |
4460 | if (tmp) | |
4461 | tmp[0] = '\\'; | |
4462 | changed = 1; | |
4463 | } | |
39bec121 | 4464 | |
d0313fb7 | 4465 | /* Replace a single '=' with a '=='; |
9a736b6b | 4466 | for compatibility with older code only. */ |
1aea3bb8 | 4467 | if (line_conditional && current_char == '=') |
9a736b6b NC |
4468 | { |
4469 | if (ptr[1] == '=') | |
4470 | { | |
4471 | ptr += 2; | |
4472 | continue; | |
4473 | } | |
4474 | *ptr++ = '\0'; | |
4475 | tmp = xmalloc (strlen (head) + 2 + strlen (ptr) + 1); | |
4476 | sprintf (tmp, "%s==%s", head, ptr); | |
4477 | /* Continue examining after the '=='. */ | |
4478 | ptr = tmp + strlen (head) + 2; | |
4479 | free (replacement); | |
4480 | head = replacement = tmp; | |
4481 | changed = 1; | |
4482 | } | |
39bec121 | 4483 | |
d0313fb7 | 4484 | /* Flag when we've reached the symbol part of .eval/.asg. */ |
39bec121 | 4485 | if (eval_line && ptr >= eval_end) |
9a736b6b | 4486 | eval_symbol = 1; |
39bec121 | 4487 | |
d0313fb7 | 4488 | /* For each apparent symbol, see if it's a substitution symbol, and if |
9a736b6b | 4489 | so, replace it in the input. */ |
39bec121 | 4490 | if ((forced && current_char == ':') |
9a736b6b NC |
4491 | || (!forced && is_name_beginner (current_char))) |
4492 | { | |
4493 | char *name; /* Symbol to be replaced. */ | |
4494 | char *savedp = input_line_pointer; | |
4495 | int c; | |
4496 | char *value = NULL; | |
4497 | char *tail; /* Rest of line after symbol. */ | |
4498 | ||
4499 | /* Skip the colon. */ | |
4500 | if (forced) | |
4501 | ++ptr; | |
4502 | ||
4503 | name = input_line_pointer = ptr; | |
4504 | c = get_symbol_end (); | |
4505 | /* '?' is not normally part of a symbol, but it IS part of a local | |
4506 | label. */ | |
4507 | if (c == '?') | |
4508 | { | |
4509 | *input_line_pointer++ = c; | |
4510 | c = *input_line_pointer; | |
4511 | *input_line_pointer = '\0'; | |
4512 | } | |
4513 | /* Avoid infinite recursion; if a symbol shows up a second time for | |
4514 | substitution, leave it as is. */ | |
4515 | if (hash_find (subsym_recurse_hash, name) == NULL) | |
4516 | value = subsym_lookup (name, macro_level); | |
4517 | else | |
4518 | as_warn (_("%s symbol recursion stopped at " | |
4519 | "second appearance of '%s'"), | |
4520 | forced ? "Forced substitution" : "Substitution", name); | |
4521 | ptr = tail = input_line_pointer; | |
4522 | input_line_pointer = savedp; | |
4523 | ||
4524 | /* Check for local labels; replace them with the appropriate | |
4525 | substitution. */ | |
3882b010 | 4526 | if ((*name == '$' && ISDIGIT (name[1]) && name[2] == '\0') |
9a736b6b NC |
4527 | || name[strlen (name) - 1] == '?') |
4528 | { | |
4529 | /* Use an existing identifier for that label if, available, or | |
4530 | create a new, unique identifier. */ | |
4531 | value = hash_find (local_label_hash[macro_level], name); | |
4532 | if (value == NULL) | |
4533 | { | |
4534 | char digit[11]; | |
4535 | char *namecopy = strcpy (xmalloc (strlen (name) + 1), name); | |
f1e7a2c9 | 4536 | |
9a736b6b NC |
4537 | value = strcpy (xmalloc (strlen (name) + sizeof (digit) + 1), |
4538 | name); | |
4539 | if (*value != '$') | |
4540 | value[strlen (value) - 1] = '\0'; | |
4541 | sprintf (digit, ".%d", local_label_id++); | |
4542 | strcat (value, digit); | |
4543 | hash_insert (local_label_hash[macro_level], namecopy, value); | |
4544 | } | |
4545 | /* Indicate where to continue looking for substitutions. */ | |
4546 | ptr = tail; | |
4547 | } | |
4548 | /* Check for built-in subsym and math functions. */ | |
4549 | else if (value != NULL && *name == '$') | |
4550 | { | |
4551 | subsym_proc_entry *entry = (subsym_proc_entry *) value; | |
4552 | math_proc_entry *math_entry = hash_find (math_hash, name); | |
4553 | char *arg1, *arg2 = NULL; | |
4554 | ||
4555 | *ptr = c; | |
4556 | if (entry == NULL) | |
4557 | { | |
4558 | as_bad (_("Unrecognized substitution symbol function")); | |
4559 | break; | |
4560 | } | |
4561 | else if (*ptr != '(') | |
4562 | { | |
4563 | as_bad (_("Missing '(' after substitution symbol function")); | |
4564 | break; | |
4565 | } | |
4566 | ++ptr; | |
4567 | if (math_entry != NULL) | |
4568 | { | |
91d6fa6a | 4569 | float farg1, farg2 = 0; |
9a736b6b NC |
4570 | volatile float fresult; |
4571 | ||
91d6fa6a | 4572 | farg1 = (float) strtod (ptr, &ptr); |
9a736b6b NC |
4573 | if (math_entry->nargs == 2) |
4574 | { | |
4575 | if (*ptr++ != ',') | |
4576 | { | |
4577 | as_bad (_("Expecting second argument")); | |
4578 | break; | |
4579 | } | |
91d6fa6a | 4580 | farg2 = (float) strtod (ptr, &ptr); |
9a736b6b | 4581 | } |
91d6fa6a | 4582 | fresult = (*math_entry->proc) (farg1, farg2); |
9a736b6b NC |
4583 | value = xmalloc (128); |
4584 | if (math_entry->int_return) | |
4585 | sprintf (value, "%d", (int) fresult); | |
4586 | else | |
4587 | sprintf (value, "%f", fresult); | |
4588 | if (*ptr++ != ')') | |
4589 | { | |
4590 | as_bad (_("Extra junk in function call, expecting ')'")); | |
4591 | break; | |
4592 | } | |
4593 | /* Don't bother recursing; the replacement isn't a | |
4594 | symbol. */ | |
4595 | recurse = 0; | |
4596 | } | |
4597 | else | |
4598 | { | |
4599 | int val; | |
4600 | int arg_type[2] = { *ptr == '"' , 0 }; | |
4601 | int ismember = !strcmp (entry->name, "$ismember"); | |
f1e7a2c9 | 4602 | |
9a736b6b NC |
4603 | /* Parse one or two args, which must be a substitution |
4604 | symbol, string or a character-string constant. */ | |
4605 | /* For all functions, a string or substitution symbol may be | |
4606 | used, with the following exceptions: | |
4607 | firstch/lastch: 2nd arg must be character constant | |
4608 | ismember: both args must be substitution symbols. */ | |
4609 | ptr = subsym_get_arg (ptr, ",)", &arg1, ismember); | |
4610 | if (!arg1) | |
4611 | break; | |
4612 | if (entry->nargs == 2) | |
4613 | { | |
4614 | if (*ptr++ != ',') | |
4615 | { | |
4616 | as_bad (_("Function expects two arguments")); | |
4617 | break; | |
4618 | } | |
4619 | /* Character constants are converted to numerics | |
4620 | by the preprocessor. */ | |
3882b010 | 4621 | arg_type[1] = (ISDIGIT (*ptr)) ? 2 : (*ptr == '"'); |
9a736b6b NC |
4622 | ptr = subsym_get_arg (ptr, ")", &arg2, ismember); |
4623 | } | |
4624 | /* Args checking. */ | |
4625 | if ((!strcmp (entry->name, "$firstch") | |
4626 | || !strcmp (entry->name, "$lastch")) | |
4627 | && arg_type[1] != 2) | |
4628 | { | |
4629 | as_bad (_("Expecting character constant argument")); | |
4630 | break; | |
4631 | } | |
4632 | if (ismember | |
4633 | && (arg_type[0] != 0 || arg_type[1] != 0)) | |
4634 | { | |
4635 | as_bad (_("Both arguments must be substitution symbols")); | |
4636 | break; | |
4637 | } | |
4638 | if (*ptr++ != ')') | |
4639 | { | |
4640 | as_bad (_("Extra junk in function call, expecting ')'")); | |
4641 | break; | |
4642 | } | |
4643 | val = (*entry->proc) (arg1, arg2); | |
4644 | value = xmalloc (64); | |
4645 | sprintf (value, "%d", val); | |
4646 | } | |
4647 | /* Fix things up to replace the entire expression, not just the | |
4648 | function name. */ | |
4649 | tail = ptr; | |
4650 | c = *tail; | |
4651 | } | |
4652 | ||
4653 | if (value != NULL && !eval_symbol) | |
4654 | { | |
4655 | /* Replace the symbol with its string replacement and | |
4656 | continue. Recursively replace VALUE until either no | |
4657 | substitutions are performed, or a substitution that has been | |
4658 | previously made is encountered again. | |
4659 | ||
4660 | put the symbol into the recursion hash table so we only | |
4661 | try to replace a symbol once. */ | |
4662 | if (recurse) | |
4663 | { | |
4664 | hash_insert (subsym_recurse_hash, name, name); | |
4665 | value = subsym_substitute (value, macro_level > 0); | |
818236e5 | 4666 | hash_delete (subsym_recurse_hash, name, FALSE); |
9a736b6b NC |
4667 | } |
4668 | ||
4669 | /* Temporarily zero-terminate where the symbol started. */ | |
4670 | *name = 0; | |
4671 | if (forced) | |
4672 | { | |
4673 | if (c == '(') | |
4674 | { | |
4675 | /* Subscripted substitution symbol -- use just the | |
4676 | indicated portion of the string; the description | |
33b7f697 | 4677 | kinda indicates that forced substitution is not |
9a736b6b NC |
4678 | supposed to be recursive, but I'm not sure. */ |
4679 | unsigned beg, len = 1; /* default to a single char */ | |
4680 | char *newval = strcpy (xmalloc (strlen (value) + 1), | |
4681 | value); | |
4682 | ||
4683 | savedp = input_line_pointer; | |
4684 | input_line_pointer = tail + 1; | |
4685 | beg = get_absolute_expression (); | |
4686 | if (beg < 1) | |
4687 | { | |
4688 | as_bad (_("Invalid subscript (use 1 to %d)"), | |
8ad7c533 | 4689 | (int) strlen (value)); |
9a736b6b NC |
4690 | break; |
4691 | } | |
4692 | if (*input_line_pointer == ',') | |
4693 | { | |
4694 | ++input_line_pointer; | |
4695 | len = get_absolute_expression (); | |
4696 | if (beg + len > strlen (value)) | |
4697 | { | |
4698 | as_bad (_("Invalid length (use 0 to %d"), | |
8ad7c533 | 4699 | (int) strlen (value) - beg); |
9a736b6b NC |
4700 | break; |
4701 | } | |
4702 | } | |
4703 | newval += beg - 1; | |
4704 | newval[len] = 0; | |
4705 | tail = input_line_pointer; | |
4706 | if (*tail++ != ')') | |
4707 | { | |
4708 | as_bad (_("Missing ')' in subscripted substitution " | |
4709 | "symbol expression")); | |
4710 | break; | |
4711 | } | |
4712 | c = *tail; | |
4713 | input_line_pointer = savedp; | |
4714 | ||
4715 | value = newval; | |
4716 | } | |
4717 | name[-1] = 0; | |
4718 | } | |
4719 | tmp = xmalloc (strlen (head) + strlen (value) + | |
4720 | strlen (tail + 1) + 2); | |
4721 | strcpy (tmp, head); | |
4722 | strcat (tmp, value); | |
4723 | /* Make sure forced substitutions are properly terminated. */ | |
4724 | if (forced) | |
4725 | { | |
4726 | if (c != ':') | |
4727 | { | |
4728 | as_bad (_("Missing forced substitution terminator ':'")); | |
4729 | break; | |
4730 | } | |
4731 | ++tail; | |
9a736b6b NC |
4732 | } |
4733 | else | |
4734 | /* Restore the character after the symbol end. */ | |
4735 | *tail = c; | |
4736 | strcat (tmp, tail); | |
4737 | /* Continue examining after the replacement value. */ | |
4738 | ptr = tmp + strlen (head) + strlen (value); | |
4739 | free (replacement); | |
4740 | head = replacement = tmp; | |
4741 | changed = 1; | |
4742 | } | |
4743 | else | |
4744 | *ptr = c; | |
4745 | } | |
39bec121 | 4746 | else |
9a736b6b NC |
4747 | { |
4748 | ++ptr; | |
4749 | } | |
39bec121 TW |
4750 | } |
4751 | ||
4752 | if (changed) | |
4753 | return replacement; | |
4754 | else | |
4755 | return line; | |
4756 | } | |
4757 | ||
1aea3bb8 | 4758 | /* We use this to handle substitution symbols |
39bec121 TW |
4759 | hijack input_line_pointer, replacing it with our substituted string. |
4760 | ||
4761 | .sslist should enable listing the line after replacements are made... | |
4762 | ||
d0313fb7 | 4763 | returns the new buffer limit. */ |
9a736b6b | 4764 | |
39bec121 | 4765 | void |
5a49b8ac | 4766 | tic54x_start_line_hook (void) |
39bec121 TW |
4767 | { |
4768 | char *line, *endp; | |
4769 | char *replacement = NULL; | |
4770 | ||
d0313fb7 | 4771 | /* Work with a copy of the input line, including EOL char. */ |
39bec121 | 4772 | endp = input_line_pointer; |
1aea3bb8 | 4773 | while (!is_end_of_line[(int) *endp++]) |
39bec121 TW |
4774 | ; |
4775 | line = xmalloc (endp - input_line_pointer + 1); | |
4776 | strncpy (line, input_line_pointer, endp - input_line_pointer + 1); | |
4777 | line[endp - input_line_pointer] = 0; | |
4778 | ||
d0313fb7 | 4779 | /* Scan ahead for parallel insns. */ |
6e210b41 | 4780 | parallel_on_next_line_hint = next_line_shows_parallel (endp); |
39bec121 | 4781 | |
d0313fb7 | 4782 | /* If within a macro, first process forced replacements. */ |
39bec121 TW |
4783 | if (macro_level > 0) |
4784 | replacement = subsym_substitute (line, 1); | |
4785 | else | |
4786 | replacement = line; | |
4787 | replacement = subsym_substitute (replacement, 0); | |
4788 | ||
4789 | if (replacement != line) | |
4790 | { | |
4791 | char *tmp = replacement; | |
9a736b6b | 4792 | char *comment = strchr (replacement, ';'); |
1aea3bb8 | 4793 | char endc = replacement[strlen (replacement) - 1]; |
39bec121 | 4794 | |
d0313fb7 | 4795 | /* Clean up the replacement; we'd prefer to have this done by the |
9a736b6b NC |
4796 | standard preprocessing equipment (maybe do_scrub_chars?) |
4797 | but for now, do a quick-and-dirty. */ | |
39bec121 | 4798 | if (comment != NULL) |
9a736b6b NC |
4799 | { |
4800 | comment[0] = endc; | |
4801 | comment[1] = 0; | |
4802 | --comment; | |
4803 | } | |
1aea3bb8 | 4804 | else |
9a736b6b | 4805 | comment = replacement + strlen (replacement) - 1; |
39bec121 | 4806 | |
d0313fb7 | 4807 | /* Trim trailing whitespace. */ |
3882b010 | 4808 | while (ISSPACE (*comment)) |
9a736b6b NC |
4809 | { |
4810 | comment[0] = endc; | |
4811 | comment[1] = 0; | |
4812 | --comment; | |
4813 | } | |
39bec121 | 4814 | |
d0313fb7 | 4815 | /* Compact leading whitespace. */ |
3882b010 | 4816 | while (ISSPACE (tmp[0]) && ISSPACE (tmp[1])) |
9a736b6b | 4817 | ++tmp; |
39bec121 TW |
4818 | |
4819 | input_line_pointer = endp; | |
4820 | input_scrub_insert_line (tmp); | |
4821 | free (replacement); | |
4822 | free (line); | |
d0313fb7 | 4823 | /* Keep track of whether we've done a substitution. */ |
39bec121 TW |
4824 | substitution_line = 1; |
4825 | } | |
4826 | else | |
4827 | { | |
d0313fb7 | 4828 | /* No change. */ |
39bec121 TW |
4829 | free (line); |
4830 | substitution_line = 0; | |
4831 | } | |
4832 | } | |
4833 | ||
4834 | /* This is the guts of the machine-dependent assembler. STR points to a | |
4835 | machine dependent instruction. This function is supposed to emit | |
d0313fb7 | 4836 | the frags/bytes it assembles to. */ |
39bec121 | 4837 | void |
5a49b8ac | 4838 | md_assemble (char *line) |
39bec121 TW |
4839 | { |
4840 | static int repeat_slot = 0; | |
9a736b6b | 4841 | static int delay_slots = 0; /* How many delay slots left to fill? */ |
39bec121 TW |
4842 | static int is_parallel = 0; |
4843 | static tic54x_insn insn; | |
4844 | char *lptr; | |
4845 | char *savedp = input_line_pointer; | |
4846 | int c; | |
4847 | ||
4848 | input_line_pointer = line; | |
4849 | c = get_symbol_end (); | |
4850 | ||
4851 | if (cpu == VNONE) | |
4852 | cpu = V542; | |
4853 | if (address_mode_needs_set) | |
4854 | { | |
4855 | set_address_mode (amode); | |
4856 | address_mode_needs_set = 0; | |
4857 | } | |
4858 | if (cpu_needs_set) | |
4859 | { | |
4860 | set_cpu (cpu); | |
4861 | cpu_needs_set = 0; | |
4862 | } | |
4863 | assembly_begun = 1; | |
4864 | ||
4865 | if (is_parallel) | |
4866 | { | |
4867 | is_parallel = 0; | |
4868 | ||
4869 | strcpy (insn.parmnemonic, line); | |
4870 | lptr = input_line_pointer; | |
4871 | *lptr = c; | |
4872 | input_line_pointer = savedp; | |
4873 | ||
4874 | if (tic54x_parse_parallel_insn_lastline (&insn, lptr)) | |
9a736b6b NC |
4875 | { |
4876 | int words = build_insn (&insn); | |
4877 | ||
4878 | if (delay_slots != 0) | |
4879 | { | |
4880 | if (words > delay_slots) | |
4881 | { | |
4882 | as_bad (_("Instruction does not fit in available delay " | |
4883 | "slots (%d-word insn, %d slots left)"), | |
1aea3bb8 | 4884 | words, delay_slots); |
9a736b6b NC |
4885 | delay_slots = 0; |
4886 | return; | |
4887 | } | |
4888 | delay_slots -= words; | |
4889 | } | |
4890 | } | |
39bec121 TW |
4891 | return; |
4892 | } | |
4893 | ||
4894 | memset (&insn, 0, sizeof (insn)); | |
4895 | strcpy (insn.mnemonic, line); | |
4896 | lptr = input_line_pointer; | |
4897 | *lptr = c; | |
4898 | input_line_pointer = savedp; | |
1aea3bb8 | 4899 | |
39bec121 TW |
4900 | /* See if this line is part of a parallel instruction; if so, either this |
4901 | line or the next line will have the "||" specifier preceding the | |
d0313fb7 | 4902 | mnemonic, and we look for it in the parallel insn hash table. */ |
39bec121 TW |
4903 | if (strstr (line, "||") != NULL || parallel_on_next_line_hint) |
4904 | { | |
4905 | char *tmp = strstr (line, "||"); | |
4906 | if (tmp != NULL) | |
9a736b6b | 4907 | *tmp = '\0'; |
39bec121 TW |
4908 | |
4909 | if (tic54x_parse_parallel_insn_firstline (&insn, lptr)) | |
9a736b6b NC |
4910 | { |
4911 | is_parallel = 1; | |
4912 | /* If the parallel part is on the same line, process it now, | |
4913 | otherwise let the assembler pick up the next line for us. */ | |
4914 | if (tmp != NULL) | |
4915 | { | |
3882b010 | 4916 | while (ISSPACE (tmp[2])) |
9a736b6b NC |
4917 | ++tmp; |
4918 | md_assemble (tmp + 2); | |
4919 | } | |
4920 | } | |
39bec121 | 4921 | else |
9a736b6b NC |
4922 | { |
4923 | as_bad (_("Unrecognized parallel instruction '%s'"), line); | |
4924 | } | |
39bec121 TW |
4925 | return; |
4926 | } | |
4927 | ||
4928 | if (tic54x_parse_insn (&insn, lptr)) | |
4929 | { | |
4930 | int words; | |
4931 | ||
1aea3bb8 | 4932 | if ((insn.tm->flags & FL_LP) |
9a736b6b NC |
4933 | && cpu != V545LP && cpu != V546LP) |
4934 | { | |
4935 | as_bad (_("Instruction '%s' requires an LP cpu version"), | |
4936 | insn.tm->name); | |
4937 | return; | |
4938 | } | |
1aea3bb8 | 4939 | if ((insn.tm->flags & FL_FAR) |
9a736b6b NC |
4940 | && amode != far_mode) |
4941 | { | |
4942 | as_bad (_("Instruction '%s' requires far mode addressing"), | |
4943 | insn.tm->name); | |
4944 | return; | |
4945 | } | |
39bec121 TW |
4946 | |
4947 | words = build_insn (&insn); | |
4948 | ||
d0313fb7 | 4949 | /* Is this instruction in a delay slot? */ |
39bec121 | 4950 | if (delay_slots) |
9a736b6b NC |
4951 | { |
4952 | if (words > delay_slots) | |
4953 | { | |
4954 | as_warn (_("Instruction does not fit in available delay " | |
4955 | "slots (%d-word insn, %d slots left). " | |
4956 | "Resulting behavior is undefined."), | |
4957 | words, delay_slots); | |
4958 | delay_slots = 0; | |
4959 | return; | |
4960 | } | |
4961 | /* Branches in delay slots are not allowed. */ | |
4962 | if (insn.tm->flags & FL_BMASK) | |
4963 | { | |
4964 | as_warn (_("Instructions which cause PC discontinuity are not " | |
4965 | "allowed in a delay slot. " | |
4966 | "Resulting behavior is undefined.")); | |
4967 | } | |
4968 | delay_slots -= words; | |
4969 | } | |
4970 | ||
4971 | /* Is this instruction the target of a repeat? */ | |
39bec121 | 4972 | if (repeat_slot) |
9a736b6b NC |
4973 | { |
4974 | if (insn.tm->flags & FL_NR) | |
4975 | as_warn (_("'%s' is not repeatable. " | |
4976 | "Resulting behavior is undefined."), | |
4977 | insn.tm->name); | |
4978 | else if (insn.is_lkaddr) | |
4979 | as_warn (_("Instructions using long offset modifiers or absolute " | |
4980 | "addresses are not repeatable. " | |
4981 | "Resulting behavior is undefined.")); | |
4982 | repeat_slot = 0; | |
4983 | } | |
1aea3bb8 | 4984 | |
d0313fb7 | 4985 | /* Make sure we check the target of a repeat instruction. */ |
39bec121 | 4986 | if (insn.tm->flags & B_REPEAT) |
9a736b6b NC |
4987 | { |
4988 | repeat_slot = 1; | |
4989 | /* FIXME -- warn if repeat_slot == 1 at EOF. */ | |
4990 | } | |
d0313fb7 | 4991 | /* Make sure we check our delay slots for validity. */ |
39bec121 | 4992 | if (insn.tm->flags & FL_DELAY) |
9a736b6b NC |
4993 | { |
4994 | delay_slots = 2; | |
4995 | /* FIXME -- warn if delay_slots != 0 at EOF. */ | |
4996 | } | |
39bec121 TW |
4997 | } |
4998 | } | |
4999 | ||
5000 | /* Do a final adjustment on the symbol table; in this case, make sure we have | |
d0313fb7 | 5001 | a ".file" symbol. */ |
9a736b6b | 5002 | |
39bec121 | 5003 | void |
5a49b8ac | 5004 | tic54x_adjust_symtab (void) |
39bec121 TW |
5005 | { |
5006 | if (symbol_rootP == NULL | |
5007 | || S_GET_STORAGE_CLASS (symbol_rootP) != C_FILE) | |
5008 | { | |
5009 | char *filename; | |
5010 | unsigned lineno; | |
5011 | as_where (&filename, &lineno); | |
5519f6ea | 5012 | c_dot_file_symbol (filename, 0); |
39bec121 TW |
5013 | } |
5014 | } | |
5015 | ||
5016 | /* In order to get gas to ignore any | chars at the start of a line, | |
1aea3bb8 | 5017 | this function returns true if a | is found in a line. |
9a736b6b NC |
5018 | This lets us process parallel instructions, which span two lines. */ |
5019 | ||
39bec121 TW |
5020 | int |
5021 | tic54x_unrecognized_line (int c) | |
5022 | { | |
5023 | return c == PARALLEL_SEPARATOR; | |
5024 | } | |
5025 | ||
5026 | /* Watch for local labels of the form $[0-9] and [_a-zA-Z][_a-zA-Z0-9]*? | |
5027 | Encode their names so that only we see them and can map them to the | |
5028 | appropriate places. | |
5029 | FIXME -- obviously this isn't done yet. These locals still show up in the | |
d0313fb7 | 5030 | symbol table. */ |
39bec121 | 5031 | void |
5a49b8ac | 5032 | tic54x_define_label (symbolS *sym) |
39bec121 | 5033 | { |
d0313fb7 | 5034 | /* Just in case we need this later; note that this is not necessarily the |
1aea3bb8 | 5035 | same thing as line_label... |
39bec121 TW |
5036 | When aligning or assigning labels to fields, sometimes the label is |
5037 | assigned other than the address at which the label appears. | |
5038 | FIXME -- is this really needed? I think all the proper label assignment | |
d0313fb7 | 5039 | is done in tic54x_cons. */ |
39bec121 TW |
5040 | last_label_seen = sym; |
5041 | } | |
5042 | ||
d0313fb7 | 5043 | /* Try to parse something that normal parsing failed at. */ |
9a736b6b | 5044 | |
39bec121 | 5045 | symbolS * |
5a49b8ac | 5046 | tic54x_undefined_symbol (char *name) |
39bec121 TW |
5047 | { |
5048 | symbol *sym; | |
5049 | ||
d0313fb7 | 5050 | /* Not sure how to handle predefined symbols. */ |
1aea3bb8 NC |
5051 | if ((sym = (symbol *) hash_find (cc_hash, name)) != NULL || |
5052 | (sym = (symbol *) hash_find (cc2_hash, name)) != NULL || | |
5053 | (sym = (symbol *) hash_find (cc3_hash, name)) != NULL || | |
5054 | (sym = (symbol *) hash_find (misc_symbol_hash, name)) != NULL || | |
5055 | (sym = (symbol *) hash_find (sbit_hash, name)) != NULL) | |
39bec121 | 5056 | { |
1aea3bb8 | 5057 | return symbol_new (name, reg_section, |
9a736b6b NC |
5058 | (valueT) sym->value, |
5059 | &zero_address_frag); | |
39bec121 TW |
5060 | } |
5061 | ||
1aea3bb8 NC |
5062 | if ((sym = (symbol *) hash_find (reg_hash, name)) != NULL || |
5063 | (sym = (symbol *) hash_find (mmreg_hash, name)) != NULL || | |
39bec121 TW |
5064 | !strcasecmp (name, "a") || !strcasecmp (name, "b")) |
5065 | { | |
1aea3bb8 | 5066 | return symbol_new (name, reg_section, |
9a736b6b NC |
5067 | (valueT) sym ? sym->value : 0, |
5068 | &zero_address_frag); | |
39bec121 TW |
5069 | } |
5070 | ||
5071 | return NULL; | |
5072 | } | |
5073 | ||
d0313fb7 NC |
5074 | /* Parse a name in an expression before the expression parser takes a stab at |
5075 | it. */ | |
9a736b6b | 5076 | |
39bec121 | 5077 | int |
5a49b8ac | 5078 | tic54x_parse_name (char *name ATTRIBUTE_UNUSED, |
91d6fa6a | 5079 | expressionS *expn ATTRIBUTE_UNUSED) |
39bec121 | 5080 | { |
39bec121 TW |
5081 | return 0; |
5082 | } | |
5083 | ||
5084 | char * | |
499ac353 NC |
5085 | md_atof (int type, char *literalP, int *sizeP) |
5086 | { | |
1aea3bb8 NC |
5087 | /* Target data is little-endian, but floats are stored |
5088 | big-"word"ian. ugh. */ | |
499ac353 | 5089 | return ieee_md_atof (type, literalP, sizeP, TRUE); |
39bec121 TW |
5090 | } |
5091 | ||
5092 | arelent * | |
5a49b8ac | 5093 | tc_gen_reloc (asection *section, fixS *fixP) |
39bec121 TW |
5094 | { |
5095 | arelent *rel; | |
5096 | bfd_reloc_code_real_type code = fixP->fx_r_type; | |
5097 | asymbol *sym = symbol_get_bfdsym (fixP->fx_addsy); | |
5098 | ||
5099 | rel = (arelent *) xmalloc (sizeof (arelent)); | |
1aea3bb8 | 5100 | rel->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); |
39bec121 | 5101 | *rel->sym_ptr_ptr = sym; |
9a736b6b | 5102 | /* We assume that all rel->address are host byte offsets. */ |
39bec121 TW |
5103 | rel->address = fixP->fx_frag->fr_address + fixP->fx_where; |
5104 | rel->address /= OCTETS_PER_BYTE; | |
5105 | rel->howto = bfd_reloc_type_lookup (stdoutput, code); | |
5106 | if (!strcmp (sym->name, section->name)) | |
5107 | rel->howto += HOWTO_BANK; | |
5108 | ||
5109 | if (!rel->howto) | |
5110 | { | |
5111 | const char *name = S_GET_NAME (fixP->fx_addsy); | |
5112 | if (name == NULL) | |
5113 | name = "<unknown>"; | |
1aea3bb8 | 5114 | as_fatal ("Cannot generate relocation type for symbol %s, code %s", |
9a736b6b | 5115 | name, bfd_get_reloc_code_name (code)); |
39bec121 TW |
5116 | return NULL; |
5117 | } | |
5118 | return rel; | |
5119 | } | |
5120 | ||
d0313fb7 | 5121 | /* Handle cons expressions. */ |
9a736b6b | 5122 | |
39bec121 | 5123 | void |
62ebcb5c AM |
5124 | tic54x_cons_fix_new (fragS *frag, int where, int octets, expressionS *expn, |
5125 | bfd_reloc_code_real_type r) | |
39bec121 | 5126 | { |
39bec121 TW |
5127 | switch (octets) |
5128 | { | |
5129 | default: | |
5130 | as_bad (_("Unsupported relocation size %d"), octets); | |
5131 | r = BFD_RELOC_TIC54X_16_OF_23; | |
5132 | break; | |
5133 | case 2: | |
5134 | r = BFD_RELOC_TIC54X_16_OF_23; | |
5135 | break; | |
5136 | case 4: | |
d0313fb7 | 5137 | /* TI assembler always uses this, regardless of addressing mode. */ |
39bec121 | 5138 | if (emitting_long) |
9a736b6b | 5139 | r = BFD_RELOC_TIC54X_23; |
39bec121 | 5140 | else |
9a736b6b NC |
5141 | /* We never want to directly generate this; this is provided for |
5142 | stabs support only. */ | |
5143 | r = BFD_RELOC_32; | |
39bec121 TW |
5144 | break; |
5145 | } | |
91d6fa6a | 5146 | fix_new_exp (frag, where, octets, expn, 0, r); |
39bec121 TW |
5147 | } |
5148 | ||
1aea3bb8 | 5149 | /* Attempt to simplify or even eliminate a fixup. |
39bec121 TW |
5150 | To indicate that a fixup has been eliminated, set fixP->fx_done. |
5151 | ||
d0313fb7 | 5152 | If fixp->fx_addsy is non-NULL, we'll have to generate a reloc entry. */ |
9a736b6b | 5153 | |
94f592af | 5154 | void |
5a49b8ac | 5155 | md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED) |
39bec121 TW |
5156 | { |
5157 | char *buf = fixP->fx_where + fixP->fx_frag->fr_literal; | |
94f592af | 5158 | valueT val = * valP; |
39bec121 TW |
5159 | |
5160 | switch (fixP->fx_r_type) | |
5161 | { | |
5162 | default: | |
5163 | as_fatal ("Bad relocation type: 0x%02x", fixP->fx_r_type); | |
94f592af | 5164 | return; |
39bec121 TW |
5165 | case BFD_RELOC_TIC54X_MS7_OF_23: |
5166 | val = (val >> 16) & 0x7F; | |
d0313fb7 | 5167 | /* Fall through. */ |
39bec121 TW |
5168 | case BFD_RELOC_TIC54X_16_OF_23: |
5169 | case BFD_RELOC_16: | |
5170 | bfd_put_16 (stdoutput, val, buf); | |
d0313fb7 | 5171 | /* Indicate what we're actually writing, so that we don't get warnings |
9a736b6b | 5172 | about exceeding available space. */ |
39bec121 TW |
5173 | *valP = val & 0xFFFF; |
5174 | break; | |
5175 | case BFD_RELOC_TIC54X_PARTLS7: | |
5176 | bfd_put_16 (stdoutput, | |
9a736b6b NC |
5177 | (bfd_get_16 (stdoutput, buf) & 0xFF80) | (val & 0x7F), |
5178 | buf); | |
d0313fb7 | 5179 | /* Indicate what we're actually writing, so that we don't get warnings |
9a736b6b | 5180 | about exceeding available space. */ |
39bec121 TW |
5181 | *valP = val & 0x7F; |
5182 | break; | |
5183 | case BFD_RELOC_TIC54X_PARTMS9: | |
5184 | /* TI assembler doesn't shift its encoding for relocatable files, and is | |
9a736b6b | 5185 | thus incompatible with this implementation's relocatable files. */ |
1aea3bb8 | 5186 | bfd_put_16 (stdoutput, |
9a736b6b NC |
5187 | (bfd_get_16 (stdoutput, buf) & 0xFE00) | (val >> 7), |
5188 | buf); | |
39bec121 TW |
5189 | break; |
5190 | case BFD_RELOC_32: | |
5191 | case BFD_RELOC_TIC54X_23: | |
5192 | bfd_put_32 (stdoutput, | |
9a736b6b NC |
5193 | (bfd_get_32 (stdoutput, buf) & 0xFF800000) | val, |
5194 | buf); | |
39bec121 TW |
5195 | break; |
5196 | } | |
5197 | ||
94f592af NC |
5198 | if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0) |
5199 | fixP->fx_done = 1; | |
39bec121 TW |
5200 | } |
5201 | ||
1aea3bb8 | 5202 | /* This is our chance to record section alignment |
d0313fb7 | 5203 | don't need to do anything here, since BFD does the proper encoding. */ |
9a736b6b | 5204 | |
39bec121 | 5205 | valueT |
5a49b8ac | 5206 | md_section_align (segT segment ATTRIBUTE_UNUSED, valueT section_size) |
39bec121 TW |
5207 | { |
5208 | return section_size; | |
5209 | } | |
5210 | ||
5211 | long | |
5a49b8ac | 5212 | md_pcrel_from (fixS *fixP ATTRIBUTE_UNUSED) |
39bec121 TW |
5213 | { |
5214 | return 0; | |
5215 | } | |
5216 | ||
9a736b6b NC |
5217 | /* Mostly little-endian, but longwords (4 octets) get MS word stored |
5218 | first. */ | |
39bec121 | 5219 | |
39bec121 | 5220 | void |
5a49b8ac | 5221 | tic54x_number_to_chars (char *buf, valueT val, int n) |
39bec121 TW |
5222 | { |
5223 | if (n != 4) | |
9a736b6b | 5224 | number_to_chars_littleendian (buf, val, n); |
39bec121 TW |
5225 | else |
5226 | { | |
1aea3bb8 NC |
5227 | number_to_chars_littleendian (buf , val >> 16 , 2); |
5228 | number_to_chars_littleendian (buf + 2, val & 0xFFFF, 2); | |
39bec121 TW |
5229 | } |
5230 | } | |
5231 | ||
1aea3bb8 | 5232 | int |
5a49b8ac AM |
5233 | tic54x_estimate_size_before_relax (fragS *frag ATTRIBUTE_UNUSED, |
5234 | segT seg ATTRIBUTE_UNUSED) | |
39bec121 TW |
5235 | { |
5236 | return 0; | |
5237 | } | |
5238 | ||
d0313fb7 NC |
5239 | /* We use this to handle bit allocations which we couldn't handle before due |
5240 | to symbols being in different frags. return number of octets added. */ | |
9a736b6b | 5241 | |
1aea3bb8 | 5242 | int |
5a49b8ac | 5243 | tic54x_relax_frag (fragS *frag, long stretch ATTRIBUTE_UNUSED) |
39bec121 TW |
5244 | { |
5245 | symbolS *sym = frag->fr_symbol; | |
5246 | int growth = 0; | |
5247 | int i; | |
5248 | ||
5249 | if (sym != NULL) | |
5250 | { | |
1aea3bb8 | 5251 | struct bit_info *bi = (struct bit_info *) frag->fr_opcode; |
39bec121 TW |
5252 | int bit_offset = frag_bit_offset (frag_prev (frag, bi->seg), bi->seg); |
5253 | int size = S_GET_VALUE (sym); | |
5254 | fragS *prev_frag = bit_offset_frag (frag_prev (frag, bi->seg), bi->seg); | |
5255 | int available = 16 - bit_offset; | |
5256 | ||
5257 | if (symbol_get_frag (sym) != &zero_address_frag | |
9a736b6b NC |
5258 | || S_IS_COMMON (sym) |
5259 | || !S_IS_DEFINED (sym)) | |
5260 | as_bad_where (frag->fr_file, frag->fr_line, | |
5261 | _("non-absolute value used with .space/.bes")); | |
39bec121 TW |
5262 | |
5263 | if (size < 0) | |
9a736b6b NC |
5264 | { |
5265 | as_warn (_("negative value ignored in %s"), | |
5266 | bi->type == TYPE_SPACE ? ".space" : | |
5267 | bi->type == TYPE_BES ? ".bes" : ".field"); | |
5268 | growth = 0; | |
5269 | frag->tc_frag_data = frag->fr_fix = 0; | |
5270 | return 0; | |
5271 | } | |
39bec121 TW |
5272 | |
5273 | if (bi->type == TYPE_FIELD) | |
9a736b6b NC |
5274 | { |
5275 | /* Bit fields of 16 or larger will have already been handled. */ | |
5276 | if (bit_offset != 0 && available >= size) | |
5277 | { | |
5278 | char *p = prev_frag->fr_literal; | |
f1e7a2c9 | 5279 | |
9a736b6b NC |
5280 | valueT value = bi->value; |
5281 | value <<= available - size; | |
5282 | value |= ((unsigned short) p[1] << 8) | p[0]; | |
5283 | md_number_to_chars (p, value, 2); | |
5284 | if ((prev_frag->tc_frag_data += size) == 16) | |
5285 | prev_frag->tc_frag_data = 0; | |
5286 | if (bi->sym) | |
5287 | symbol_set_frag (bi->sym, prev_frag); | |
5288 | /* This frag is no longer used. */ | |
5289 | growth = -frag->fr_fix; | |
5290 | frag->fr_fix = 0; | |
5291 | frag->tc_frag_data = 0; | |
5292 | } | |
5293 | else | |
5294 | { | |
5295 | char *p = frag->fr_literal; | |
f1e7a2c9 | 5296 | |
9a736b6b NC |
5297 | valueT value = bi->value << (16 - size); |
5298 | md_number_to_chars (p, value, 2); | |
5299 | if ((frag->tc_frag_data = size) == 16) | |
5300 | frag->tc_frag_data = 0; | |
5301 | growth = 0; | |
5302 | } | |
5303 | } | |
39bec121 | 5304 | else |
9a736b6b NC |
5305 | { |
5306 | if (bit_offset != 0 && bit_offset < 16) | |
5307 | { | |
5308 | if (available >= size) | |
5309 | { | |
5310 | if ((prev_frag->tc_frag_data += size) == 16) | |
5311 | prev_frag->tc_frag_data = 0; | |
5312 | if (bi->sym) | |
5313 | symbol_set_frag (bi->sym, prev_frag); | |
5314 | /* This frag is no longer used. */ | |
5315 | growth = -frag->fr_fix; | |
5316 | frag->fr_fix = 0; | |
5317 | frag->tc_frag_data = 0; | |
5318 | goto getout; | |
5319 | } | |
5320 | if (bi->type == TYPE_SPACE && bi->sym) | |
5321 | symbol_set_frag (bi->sym, prev_frag); | |
5322 | size -= available; | |
5323 | } | |
5324 | growth = (size + 15) / 16 * OCTETS_PER_BYTE - frag->fr_fix; | |
5325 | for (i = 0; i < growth; i++) | |
5326 | frag->fr_literal[i] = 0; | |
5327 | frag->fr_fix = growth; | |
5328 | frag->tc_frag_data = size % 16; | |
5329 | /* Make sure any BES label points to the LAST word allocated. */ | |
5330 | if (bi->type == TYPE_BES && bi->sym) | |
5331 | S_SET_VALUE (bi->sym, frag->fr_fix / OCTETS_PER_BYTE - 1); | |
5332 | } | |
39bec121 TW |
5333 | getout: |
5334 | frag->fr_symbol = 0; | |
5335 | frag->fr_opcode = 0; | |
1aea3bb8 | 5336 | free ((void *) bi); |
39bec121 TW |
5337 | } |
5338 | return growth; | |
5339 | } | |
5340 | ||
5341 | void | |
5a49b8ac AM |
5342 | tic54x_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, |
5343 | segT seg ATTRIBUTE_UNUSED, | |
5344 | fragS *frag) | |
39bec121 | 5345 | { |
d0313fb7 | 5346 | /* Offset is in bytes. */ |
1aea3bb8 | 5347 | frag->fr_offset = (frag->fr_next->fr_address |
9a736b6b NC |
5348 | - frag->fr_address |
5349 | - frag->fr_fix) / frag->fr_var; | |
39bec121 TW |
5350 | if (frag->fr_offset < 0) |
5351 | { | |
5352 | as_bad_where (frag->fr_file, frag->fr_line, | |
9a736b6b NC |
5353 | _("attempt to .space/.bes backwards? (%ld)"), |
5354 | (long) frag->fr_offset); | |
39bec121 TW |
5355 | } |
5356 | frag->fr_type = rs_space; | |
5357 | } | |
5358 | ||
d0313fb7 | 5359 | /* We need to avoid having labels defined for certain directives/pseudo-ops |
39bec121 TW |
5360 | since once the label is defined, it's in the symbol table for good. TI |
5361 | syntax puts the symbol *before* the pseudo (which is kinda like MRI syntax, | |
5362 | I guess, except I've never seen a definition of MRI syntax). | |
5363 | ||
5364 | C is the character that used to be at *REST, which points to the end of the | |
1aea3bb8 | 5365 | label. |
39bec121 | 5366 | |
d0313fb7 | 5367 | Don't allow labels to start with '.' */ |
9a736b6b | 5368 | |
39bec121 | 5369 | int |
5a49b8ac | 5370 | tic54x_start_label (int c, char *rest) |
39bec121 | 5371 | { |
d0313fb7 | 5372 | /* If within .struct/.union, no auto line labels, please. */ |
39bec121 TW |
5373 | if (current_stag != NULL) |
5374 | return 0; | |
5375 | ||
d0313fb7 | 5376 | /* Disallow labels starting with "." */ |
39bec121 TW |
5377 | if (c != ':') |
5378 | { | |
5379 | char *label = rest; | |
f1e7a2c9 | 5380 | |
1aea3bb8 | 5381 | while (!is_end_of_line[(int) label[-1]]) |
9a736b6b | 5382 | --label; |
39bec121 | 5383 | if (*label == '.') |
9a736b6b NC |
5384 | { |
5385 | as_bad (_("Invalid label '%s'"), label); | |
5386 | return 0; | |
5387 | } | |
39bec121 TW |
5388 | } |
5389 | ||
1aea3bb8 | 5390 | if (is_end_of_line[(int) c]) |
39bec121 TW |
5391 | return 1; |
5392 | ||
3882b010 L |
5393 | if (ISSPACE (c)) |
5394 | while (ISSPACE (c = *++rest)) | |
39bec121 TW |
5395 | ; |
5396 | if (c == '.') | |
5397 | { | |
d0313fb7 | 5398 | /* Don't let colon () define a label for any of these... */ |
3882b010 L |
5399 | return (strncasecmp (rest, ".tag", 4) != 0 || !ISSPACE (rest[4])) |
5400 | && (strncasecmp (rest, ".struct", 7) != 0 || !ISSPACE (rest[7])) | |
5401 | && (strncasecmp (rest, ".union", 6) != 0 || !ISSPACE (rest[6])) | |
5402 | && (strncasecmp (rest, ".macro", 6) != 0 || !ISSPACE (rest[6])) | |
5403 | && (strncasecmp (rest, ".set", 4) != 0 || !ISSPACE (rest[4])) | |
5404 | && (strncasecmp (rest, ".equ", 4) != 0 || !ISSPACE (rest[4])); | |
39bec121 TW |
5405 | } |
5406 | ||
5407 | return 1; | |
5408 | } |