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39bec121 | 1 | /* tc-tic54x.c -- Assembly code for the Texas Instruments TMS320C54X |
82704155 | 2 | Copyright (C) 1999-2019 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" | |
39bec121 TW |
53 | #include "opcode/tic54x.h" |
54 | #include "obj-coff.h" | |
55 | #include <math.h> | |
56 | ||
39bec121 | 57 | |
f1e7a2c9 NC |
58 | static struct stag |
59 | { | |
60 | symbolS *sym; /* Symbol for this stag; value is offset. */ | |
61 | const char *name; /* Shortcut to symbol name. */ | |
62 | bfd_vma size; /* Size of struct/union. */ | |
63 | int current_bitfield_offset; /* Temporary for tracking fields. */ | |
64 | int is_union; | |
65 | struct stag_field /* List of fields. */ | |
66 | { | |
67 | const char *name; | |
68 | bfd_vma offset; /* Of start of this field. */ | |
69 | int bitfield_offset; /* Of start of this field. */ | |
70 | struct stag *stag; /* If field is struct/union. */ | |
71 | struct stag_field *next; | |
72 | } *field; | |
73 | /* For nesting; used only in stag construction. */ | |
74 | struct stag *inner; /* Enclosed .struct. */ | |
75 | struct stag *outer; /* Enclosing .struct. */ | |
76 | } *current_stag = NULL; | |
39bec121 | 77 | |
f1e7a2c9 | 78 | #define MAX_LINE 256 /* Lines longer than this are truncated by TI's asm. */ |
9a736b6b | 79 | |
f1e7a2c9 NC |
80 | typedef struct _tic54x_insn |
81 | { | |
d3ce72d0 | 82 | const insn_template *tm; /* Opcode template. */ |
39bec121 | 83 | |
f1e7a2c9 NC |
84 | char mnemonic[MAX_LINE]; /* Opcode name/mnemonic. */ |
85 | char parmnemonic[MAX_LINE]; /* 2nd mnemonic of parallel insn. */ | |
39bec121 | 86 | |
f1e7a2c9 NC |
87 | int opcount; |
88 | struct opstruct | |
89 | { | |
90 | char buf[MAX_LINE]; | |
91 | enum optype type; | |
92 | expressionS exp; | |
93 | } operands[MAX_OPERANDS]; | |
39bec121 | 94 | |
f1e7a2c9 NC |
95 | int paropcount; |
96 | struct opstruct paroperands[MAX_OPERANDS]; | |
97 | ||
98 | int is_lkaddr; | |
99 | int lkoperand; | |
100 | int words; /* Size of insn in 16-bit words. */ | |
101 | int using_default_dst; /* Do we need to explicitly set an | |
102 | omitted OP_DST operand? */ | |
103 | struct | |
104 | { | |
105 | unsigned short word; /* Final encoded opcode data. */ | |
106 | int unresolved; | |
107 | int r_nchars; /* Relocation size. */ | |
108 | bfd_reloc_code_real_type r_type; /* Relocation type. */ | |
109 | expressionS addr_expr; /* Storage for unresolved expressions. */ | |
110 | } opcode[3]; | |
111 | } tic54x_insn; | |
d0313fb7 NC |
112 | |
113 | enum cpu_version | |
114 | { | |
39bec121 TW |
115 | VNONE = 0, V541 = 1, V542 = 2, V543 = 3, V545 = 5, V548 = 8, V549 = 9, |
116 | V545LP = 15, V546LP = 16 | |
117 | }; | |
118 | ||
d0313fb7 NC |
119 | enum address_mode |
120 | { | |
9a736b6b NC |
121 | c_mode, /* 16-bit addresses. */ |
122 | far_mode /* >16-bit addresses. */ | |
39bec121 TW |
123 | }; |
124 | ||
f1e7a2c9 NC |
125 | static segT stag_saved_seg; |
126 | static subsegT stag_saved_subseg; | |
127 | ||
128 | const char comment_chars[] = ";"; | |
129 | const char line_comment_chars[] = ";*#"; /* At column zero only. */ | |
130 | const char line_separator_chars[] = ""; /* Not permitted. */ | |
131 | ||
132 | int emitting_long = 0; | |
133 | ||
134 | /* Characters which indicate that this is a floating point constant. */ | |
135 | const char FLT_CHARS[] = "fF"; | |
136 | ||
137 | /* Characters that can be used to separate mantissa from exp in FP | |
138 | nums. */ | |
139 | const char EXP_CHARS[] = "eE"; | |
140 | ||
141 | const char *md_shortopts = ""; | |
142 | ||
39bec121 | 143 | #define OPTION_ADDRESS_MODE (OPTION_MD_BASE) |
1aea3bb8 NC |
144 | #define OPTION_CPU_VERSION (OPTION_ADDRESS_MODE + 1) |
145 | #define OPTION_COFF_VERSION (OPTION_CPU_VERSION + 1) | |
146 | #define OPTION_STDERR_TO_FILE (OPTION_COFF_VERSION + 1) | |
39bec121 | 147 | |
1aea3bb8 | 148 | struct option md_longopts[] = |
39bec121 | 149 | { |
f1e7a2c9 NC |
150 | { "mfar-mode", no_argument, NULL, OPTION_ADDRESS_MODE }, |
151 | { "mf", no_argument, NULL, OPTION_ADDRESS_MODE }, | |
152 | { "mcpu", required_argument, NULL, OPTION_CPU_VERSION }, | |
39bec121 | 153 | { "merrors-to-file", required_argument, NULL, OPTION_STDERR_TO_FILE }, |
f1e7a2c9 NC |
154 | { "me", required_argument, NULL, OPTION_STDERR_TO_FILE }, |
155 | { NULL, no_argument, NULL, 0}, | |
39bec121 TW |
156 | }; |
157 | ||
158 | size_t md_longopts_size = sizeof (md_longopts); | |
159 | ||
d0313fb7 | 160 | static int assembly_begun = 0; |
39bec121 TW |
161 | /* Addressing mode is not entirely implemented; the latest rev of the Other |
162 | assembler doesn't seem to make any distinction whatsoever; all relocations | |
33eaf5de | 163 | are stored as extended relocations. Older versions used REL16 vs RELEXT16, |
39bec121 TW |
164 | but now it seems all relocations are RELEXT16. We use all RELEXT16. |
165 | ||
166 | The cpu version is kind of a waste of time as well. There is one | |
167 | instruction (RND) for LP devices only, and several for devices with | |
d0313fb7 | 168 | extended addressing only. We include it for compatibility. */ |
39bec121 | 169 | static enum address_mode amode = c_mode; |
d0313fb7 | 170 | static enum cpu_version cpu = VNONE; |
39bec121 | 171 | |
d0313fb7 | 172 | /* Include string substitutions in listing? */ |
39bec121 | 173 | static int listing_sslist = 0; |
9a736b6b | 174 | |
d0313fb7 | 175 | /* Did we do subsym substitutions on the line? */ |
39bec121 | 176 | static int substitution_line = 0; |
9a736b6b | 177 | |
d0313fb7 | 178 | /* Last label seen. */ |
39bec121 | 179 | static symbolS *last_label_seen = NULL; |
9a736b6b | 180 | |
d0313fb7 | 181 | /* This ensures that all new labels are unique. */ |
39bec121 TW |
182 | static int local_label_id; |
183 | ||
1dab94dd | 184 | static struct hash_control *subsym_recurse_hash; /* Prevent infinite recurse. */ |
9a736b6b | 185 | static struct hash_control *math_hash; /* Built-in math functions. */ |
d0313fb7 NC |
186 | /* Allow maximum levels of macro nesting; level 0 is the main substitution |
187 | symbol table. The other assembler only does 32 levels, so there! */ | |
3076e594 NC |
188 | #define MAX_SUBSYM_HASH 100 |
189 | static struct hash_control *subsym_hash[MAX_SUBSYM_HASH]; | |
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 | 232 | { |
33eaf5de | 233 | fprintf (stream, _("C54x-specific command line options:\n")); |
f1e7a2c9 NC |
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 | |
33eaf5de | 240 | /* Output a single character (upper octet 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; | |
39bec121 TW |
325 | int quoted = *input_line_pointer == '"'; |
326 | ||
327 | ILLEGAL_WITHIN_STRUCT (); | |
328 | ||
329 | if (quoted) | |
330 | { | |
331 | int len; | |
332 | str = demand_copy_C_string (&len); | |
333 | c = *input_line_pointer; | |
334 | } | |
335 | else | |
336 | { | |
337 | str = input_line_pointer; | |
338 | while ((c = *input_line_pointer) != ',') | |
d0313fb7 | 339 | { |
3076e594 | 340 | if (is_end_of_line[(unsigned char) c]) |
d0313fb7 NC |
341 | break; |
342 | ++input_line_pointer; | |
343 | } | |
39bec121 TW |
344 | *input_line_pointer = 0; |
345 | } | |
346 | if (c != ',') | |
347 | { | |
348 | as_bad (_("Comma and symbol expected for '.asg STRING, SYMBOL'")); | |
349 | ignore_rest_of_line (); | |
350 | return; | |
351 | } | |
352 | ||
d02603dc NC |
353 | ++input_line_pointer; |
354 | c = get_symbol_name (&name); /* Get terminator. */ | |
3882b010 | 355 | if (!ISALPHA (*name)) |
39bec121 | 356 | { |
20203fb9 | 357 | as_bad (_("symbols assigned with .asg must begin with a letter")); |
39bec121 TW |
358 | ignore_rest_of_line (); |
359 | return; | |
360 | } | |
361 | ||
e1fa0163 NC |
362 | str = xstrdup (str); |
363 | name = xstrdup (name); | |
39bec121 | 364 | subsym_create_or_replace (name, str); |
d02603dc | 365 | (void) restore_line_pointer (c); |
39bec121 TW |
366 | demand_empty_rest_of_line (); |
367 | } | |
368 | ||
1aea3bb8 | 369 | /* .eval expression, symbol |
39bec121 | 370 | There's something screwy about this. The other assembler sometimes does and |
1aea3bb8 | 371 | sometimes doesn't substitute symbols defined with .eval. |
39bec121 | 372 | We'll put the symbols into the subsym table as well as the normal symbol |
d0313fb7 | 373 | table, since that's what works best. */ |
9a736b6b | 374 | |
d0313fb7 | 375 | static void |
5a49b8ac | 376 | tic54x_eval (int x ATTRIBUTE_UNUSED) |
39bec121 TW |
377 | { |
378 | char c; | |
379 | int value; | |
380 | char *name; | |
381 | symbolS *symbolP; | |
382 | char valuestr[32], *tmp; | |
383 | int quoted; | |
384 | ||
385 | ILLEGAL_WITHIN_STRUCT (); | |
386 | ||
387 | SKIP_WHITESPACE (); | |
388 | ||
389 | quoted = *input_line_pointer == '"'; | |
390 | if (quoted) | |
391 | ++input_line_pointer; | |
392 | value = get_absolute_expression (); | |
393 | if (quoted) | |
394 | { | |
395 | if (*input_line_pointer != '"') | |
d0313fb7 NC |
396 | { |
397 | as_bad (_("Unterminated string after absolute expression")); | |
398 | ignore_rest_of_line (); | |
399 | return; | |
400 | } | |
39bec121 TW |
401 | ++input_line_pointer; |
402 | } | |
403 | if (*input_line_pointer++ != ',') | |
404 | { | |
405 | as_bad (_("Comma and symbol expected for '.eval EXPR, SYMBOL'")); | |
406 | ignore_rest_of_line (); | |
407 | return; | |
408 | } | |
d02603dc | 409 | c = get_symbol_name (&name); /* Get terminator. */ |
4ec9d7d5 | 410 | name = xstrdup (name); |
d02603dc | 411 | (void) restore_line_pointer (c); |
39bec121 | 412 | |
3882b010 | 413 | if (!ISALPHA (*name)) |
39bec121 TW |
414 | { |
415 | as_bad (_("symbols assigned with .eval must begin with a letter")); | |
416 | ignore_rest_of_line (); | |
417 | return; | |
418 | } | |
419 | symbolP = symbol_new (name, absolute_section, | |
420 | (valueT) value, &zero_address_frag); | |
421 | SF_SET_LOCAL (symbolP); | |
422 | symbol_table_insert (symbolP); | |
423 | ||
424 | /* The "other" assembler sometimes doesn't put .eval's in the subsym table | |
425 | But since there's not written rule as to when, don't even bother trying | |
d0313fb7 | 426 | to match their behavior. */ |
39bec121 | 427 | sprintf (valuestr, "%d", value); |
4ec9d7d5 | 428 | tmp = xstrdup (valuestr); |
39bec121 TW |
429 | subsym_create_or_replace (name, tmp); |
430 | ||
431 | demand_empty_rest_of_line (); | |
432 | } | |
433 | ||
1aea3bb8 | 434 | /* .bss symbol, size [, [blocking flag] [, alignment flag] |
39bec121 TW |
435 | |
436 | alignment is to a longword boundary; blocking is to 128-word boundary. | |
437 | ||
438 | 1) if there is a hole in memory, this directive should attempt to fill it | |
439 | (not yet implemented). | |
440 | ||
441 | 2) if the blocking flag is not set, allocate at the current SPC | |
442 | otherwise, check to see if the current SPC plus the space to be | |
443 | allocated crosses the page boundary (128 words). | |
444 | if there's not enough space, create a hole and align with the next page | |
1aea3bb8 | 445 | boundary. |
d0313fb7 | 446 | (not yet implemented). */ |
9a736b6b | 447 | |
d0313fb7 | 448 | static void |
5a49b8ac | 449 | tic54x_bss (int x ATTRIBUTE_UNUSED) |
39bec121 TW |
450 | { |
451 | char c; | |
452 | char *name; | |
453 | char *p; | |
454 | int words; | |
455 | segT current_seg; | |
456 | subsegT current_subseg; | |
457 | symbolS *symbolP; | |
458 | int block = 0; | |
459 | int align = 0; | |
460 | ||
461 | ILLEGAL_WITHIN_STRUCT (); | |
462 | ||
d0313fb7 NC |
463 | current_seg = now_seg; /* Save current seg. */ |
464 | current_subseg = now_subseg; /* Save current subseg. */ | |
39bec121 | 465 | |
d02603dc NC |
466 | c = get_symbol_name (&name); /* Get terminator. */ |
467 | if (c == '"') | |
468 | c = * ++ input_line_pointer; | |
39bec121 TW |
469 | if (c != ',') |
470 | { | |
20203fb9 | 471 | as_bad (_(".bss size argument missing\n")); |
39bec121 TW |
472 | ignore_rest_of_line (); |
473 | return; | |
474 | } | |
475 | ||
476 | ++input_line_pointer; | |
477 | words = get_absolute_expression (); | |
478 | if (words < 0) | |
479 | { | |
20203fb9 | 480 | as_bad (_(".bss size %d < 0!"), words); |
39bec121 TW |
481 | ignore_rest_of_line (); |
482 | return; | |
483 | } | |
484 | ||
485 | if (*input_line_pointer == ',') | |
486 | { | |
9a736b6b | 487 | /* The blocking flag may be missing. */ |
39bec121 TW |
488 | ++input_line_pointer; |
489 | if (*input_line_pointer != ',') | |
d0313fb7 | 490 | block = get_absolute_expression (); |
39bec121 | 491 | else |
d0313fb7 | 492 | block = 0; |
39bec121 TW |
493 | |
494 | if (*input_line_pointer == ',') | |
d0313fb7 NC |
495 | { |
496 | ++input_line_pointer; | |
497 | align = get_absolute_expression (); | |
498 | } | |
39bec121 | 499 | else |
d0313fb7 | 500 | align = 0; |
39bec121 TW |
501 | } |
502 | else | |
503 | block = align = 0; | |
504 | ||
505 | subseg_set (bss_section, 0); | |
506 | symbolP = symbol_find_or_make (name); | |
507 | ||
508 | if (S_GET_SEGMENT (symbolP) == bss_section) | |
8d1015a8 | 509 | symbol_get_frag (symbolP)->fr_symbol = (symbolS *) NULL; |
39bec121 TW |
510 | |
511 | symbol_set_frag (symbolP, frag_now); | |
512 | p = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, | |
6e917903 | 513 | (offsetT) (words * OCTETS_PER_BYTE), (char *) 0); |
9a736b6b | 514 | *p = 0; /* Fill char. */ |
39bec121 TW |
515 | |
516 | S_SET_SEGMENT (symbolP, bss_section); | |
517 | ||
518 | /* The symbol may already have been created with a preceding | |
519 | ".globl" directive -- be careful not to step on storage class | |
520 | in that case. Otherwise, set it to static. */ | |
521 | if (S_GET_STORAGE_CLASS (symbolP) != C_EXT) | |
522 | S_SET_STORAGE_CLASS (symbolP, C_STAT); | |
523 | ||
524 | if (align) | |
525 | { | |
526 | /* s_align eats end of line; restore it */ | |
527 | s_align_bytes (4); | |
528 | --input_line_pointer; | |
529 | } | |
530 | ||
531 | if (block) | |
ebe372c1 | 532 | bss_section->flags |= SEC_TIC54X_BLOCK; |
39bec121 | 533 | |
9a736b6b | 534 | subseg_set (current_seg, current_subseg); /* Restore current seg. */ |
39bec121 TW |
535 | demand_empty_rest_of_line (); |
536 | } | |
537 | ||
538 | static void | |
5a49b8ac AM |
539 | stag_add_field_symbols (struct stag *stag, |
540 | const char *path, | |
541 | bfd_vma base_offset, | |
542 | symbolS *rootsym, | |
543 | const char *root_stag_name) | |
39bec121 | 544 | { |
e1fa0163 | 545 | char * prefix; |
39bec121 | 546 | struct stag_field *field = stag->field; |
1aea3bb8 NC |
547 | |
548 | /* Construct a symbol for every field contained within this structure | |
d0313fb7 | 549 | including fields within structure fields. */ |
e1fa0163 | 550 | prefix = concat (path, *path ? "." : "", NULL); |
39bec121 TW |
551 | |
552 | while (field != NULL) | |
553 | { | |
e1fa0163 | 554 | char *name = concat (prefix, field->name, NULL); |
39bec121 TW |
555 | |
556 | if (rootsym == NULL) | |
9a736b6b NC |
557 | { |
558 | symbolS *sym; | |
559 | sym = symbol_new (name, absolute_section, | |
560 | (field->stag ? field->offset : | |
561 | (valueT) (base_offset + field->offset)), | |
562 | &zero_address_frag); | |
563 | SF_SET_LOCAL (sym); | |
564 | symbol_table_insert (sym); | |
565 | } | |
39bec121 | 566 | else |
9a736b6b | 567 | { |
e1fa0163 NC |
568 | char *replacement; |
569 | ||
570 | replacement = concat (S_GET_NAME (rootsym), "+", root_stag_name, | |
571 | name + strlen (S_GET_NAME (rootsym)), NULL); | |
9a736b6b NC |
572 | hash_insert (subsym_hash[0], name, replacement); |
573 | } | |
39bec121 | 574 | |
d0313fb7 | 575 | /* Recurse if the field is a structure. |
9a736b6b | 576 | Note the field offset is relative to the outermost struct. */ |
39bec121 | 577 | if (field->stag != NULL) |
9a736b6b NC |
578 | stag_add_field_symbols (field->stag, name, |
579 | field->offset, | |
580 | rootsym, root_stag_name); | |
39bec121 | 581 | field = field->next; |
e1fa0163 | 582 | free (name); |
39bec121 | 583 | } |
e1fa0163 | 584 | free (prefix); |
39bec121 TW |
585 | } |
586 | ||
d0313fb7 NC |
587 | /* Keep track of stag fields so that when structures are nested we can add the |
588 | complete dereferencing symbols to the symbol table. */ | |
9a736b6b | 589 | |
39bec121 | 590 | static void |
5a49b8ac AM |
591 | stag_add_field (struct stag *parent, |
592 | const char *name, | |
593 | bfd_vma offset, | |
594 | struct stag *stag) | |
39bec121 | 595 | { |
325801bd | 596 | struct stag_field *sfield = XCNEW (struct stag_field); |
39bec121 | 597 | |
4ec9d7d5 | 598 | sfield->name = xstrdup (name); |
39bec121 TW |
599 | sfield->offset = offset; |
600 | sfield->bitfield_offset = parent->current_bitfield_offset; | |
601 | sfield->stag = stag; | |
602 | if (parent->field == NULL) | |
603 | parent->field = sfield; | |
1aea3bb8 NC |
604 | else |
605 | { | |
606 | struct stag_field *sf = parent->field; | |
607 | while (sf->next != NULL) | |
608 | sf = sf->next; | |
609 | sf->next = sfield; | |
610 | } | |
d0313fb7 | 611 | /* Only create a symbol for this field if the parent has no name. */ |
39bec121 TW |
612 | if (!strncmp (".fake", parent->name, 5)) |
613 | { | |
1aea3bb8 | 614 | symbolS *sym = symbol_new (name, absolute_section, |
9a736b6b | 615 | (valueT) offset, &zero_address_frag); |
39bec121 TW |
616 | SF_SET_LOCAL (sym); |
617 | symbol_table_insert (sym); | |
618 | } | |
619 | } | |
620 | ||
621 | /* [STAG] .struct [OFFSET] | |
9a736b6b NC |
622 | Start defining structure offsets (symbols in absolute section). */ |
623 | ||
39bec121 | 624 | static void |
5a49b8ac | 625 | tic54x_struct (int arg) |
39bec121 TW |
626 | { |
627 | int start_offset = 0; | |
628 | int is_union = arg; | |
629 | ||
630 | if (!current_stag) | |
631 | { | |
d0313fb7 | 632 | /* Starting a new struct, switch to absolute section. */ |
39bec121 TW |
633 | stag_saved_seg = now_seg; |
634 | stag_saved_subseg = now_subseg; | |
635 | subseg_set (absolute_section, 0); | |
636 | } | |
d0313fb7 | 637 | /* Align the current pointer. */ |
39bec121 TW |
638 | else if (current_stag->current_bitfield_offset != 0) |
639 | { | |
640 | ++abs_section_offset; | |
641 | current_stag->current_bitfield_offset = 0; | |
642 | } | |
643 | ||
d0313fb7 | 644 | /* Offset expression is only meaningful for global .structs. */ |
39bec121 TW |
645 | if (!is_union) |
646 | { | |
d0313fb7 | 647 | /* Offset is ignored in inner structs. */ |
39bec121 | 648 | SKIP_WHITESPACE (); |
3076e594 | 649 | if (!is_end_of_line[(unsigned char) *input_line_pointer]) |
9a736b6b | 650 | start_offset = get_absolute_expression (); |
39bec121 | 651 | else |
9a736b6b | 652 | start_offset = 0; |
39bec121 TW |
653 | } |
654 | ||
655 | if (current_stag) | |
656 | { | |
d0313fb7 | 657 | /* Nesting, link to outer one. */ |
325801bd | 658 | current_stag->inner = XCNEW (struct stag); |
39bec121 TW |
659 | current_stag->inner->outer = current_stag; |
660 | current_stag = current_stag->inner; | |
661 | if (start_offset) | |
9a736b6b | 662 | as_warn (_("Offset on nested structures is ignored")); |
39bec121 TW |
663 | start_offset = abs_section_offset; |
664 | } | |
1aea3bb8 | 665 | else |
39bec121 | 666 | { |
325801bd | 667 | current_stag = XCNEW (struct stag); |
39bec121 TW |
668 | abs_section_offset = start_offset; |
669 | } | |
670 | current_stag->is_union = is_union; | |
671 | ||
672 | if (line_label == NULL) | |
673 | { | |
674 | static int struct_count = 0; | |
675 | char fake[] = ".fake_stagNNNNNNN"; | |
676 | sprintf (fake, ".fake_stag%d", struct_count++); | |
677 | current_stag->sym = symbol_new (fake, absolute_section, | |
9a736b6b NC |
678 | (valueT) abs_section_offset, |
679 | &zero_address_frag); | |
39bec121 TW |
680 | } |
681 | else | |
682 | { | |
e1fa0163 NC |
683 | char * label = xstrdup (S_GET_NAME (line_label)); |
684 | current_stag->sym = symbol_new (label, | |
685 | absolute_section, | |
9a736b6b NC |
686 | (valueT) abs_section_offset, |
687 | &zero_address_frag); | |
e1fa0163 | 688 | free (label); |
39bec121 TW |
689 | } |
690 | current_stag->name = S_GET_NAME (current_stag->sym); | |
691 | SF_SET_LOCAL (current_stag->sym); | |
d0313fb7 | 692 | /* Nested .structs don't go into the symbol table. */ |
39bec121 TW |
693 | if (current_stag->outer == NULL) |
694 | symbol_table_insert (current_stag->sym); | |
695 | ||
696 | line_label = NULL; | |
697 | } | |
698 | ||
1aea3bb8 | 699 | /* [LABEL] .endstruct |
39bec121 | 700 | finish defining structure offsets; optional LABEL's value will be the size |
d0313fb7 | 701 | of the structure. */ |
9a736b6b | 702 | |
39bec121 | 703 | static void |
5a49b8ac | 704 | tic54x_endstruct (int is_union) |
39bec121 TW |
705 | { |
706 | int size; | |
1aea3bb8 | 707 | const char *path = |
39bec121 | 708 | !strncmp (current_stag->name, ".fake", 5) ? "" : current_stag->name; |
1aea3bb8 | 709 | |
39bec121 TW |
710 | if (!current_stag || current_stag->is_union != is_union) |
711 | { | |
1aea3bb8 | 712 | as_bad (_(".end%s without preceding .%s"), |
9a736b6b NC |
713 | is_union ? "union" : "struct", |
714 | is_union ? "union" : "struct"); | |
39bec121 TW |
715 | ignore_rest_of_line (); |
716 | return; | |
717 | } | |
718 | ||
d0313fb7 | 719 | /* Align end of structures. */ |
39bec121 TW |
720 | if (current_stag->current_bitfield_offset) |
721 | { | |
722 | ++abs_section_offset; | |
723 | current_stag->current_bitfield_offset = 0; | |
724 | } | |
725 | ||
726 | if (current_stag->is_union) | |
727 | size = current_stag->size; | |
728 | else | |
729 | size = abs_section_offset - S_GET_VALUE (current_stag->sym); | |
730 | if (line_label != NULL) | |
731 | { | |
732 | S_SET_VALUE (line_label, size); | |
733 | symbol_table_insert (line_label); | |
734 | line_label = NULL; | |
735 | } | |
736 | ||
d0313fb7 | 737 | /* Union size has already been calculated. */ |
39bec121 TW |
738 | if (!current_stag->is_union) |
739 | current_stag->size = size; | |
d0313fb7 | 740 | /* Nested .structs don't get put in the stag table. */ |
39bec121 TW |
741 | if (current_stag->outer == NULL) |
742 | { | |
743 | hash_insert (stag_hash, current_stag->name, current_stag); | |
1aea3bb8 | 744 | stag_add_field_symbols (current_stag, path, |
9a736b6b NC |
745 | S_GET_VALUE (current_stag->sym), |
746 | NULL, NULL); | |
39bec121 TW |
747 | } |
748 | current_stag = current_stag->outer; | |
749 | ||
d0313fb7 NC |
750 | /* If this is a nested .struct/.union, add it as a field to the enclosing |
751 | one. otherwise, restore the section we were in. */ | |
39bec121 TW |
752 | if (current_stag != NULL) |
753 | { | |
754 | stag_add_field (current_stag, current_stag->inner->name, | |
9a736b6b NC |
755 | S_GET_VALUE (current_stag->inner->sym), |
756 | current_stag->inner); | |
39bec121 TW |
757 | } |
758 | else | |
759 | subseg_set (stag_saved_seg, stag_saved_subseg); | |
760 | } | |
761 | ||
762 | /* [LABEL] .tag STAG | |
763 | Reference a structure within a structure, as a sized field with an optional | |
1aea3bb8 | 764 | label. |
39bec121 | 765 | If used outside of a .struct/.endstruct, overlays the given structure |
d0313fb7 | 766 | format on the existing allocated space. */ |
9a736b6b | 767 | |
39bec121 | 768 | static void |
5a49b8ac | 769 | tic54x_tag (int ignore ATTRIBUTE_UNUSED) |
39bec121 | 770 | { |
d02603dc NC |
771 | char *name; |
772 | int c = get_symbol_name (&name); | |
1aea3bb8 | 773 | struct stag *stag = (struct stag *) hash_find (stag_hash, name); |
39bec121 TW |
774 | |
775 | if (!stag) | |
776 | { | |
777 | if (*name) | |
9a736b6b | 778 | as_bad (_("Unrecognized struct/union tag '%s'"), name); |
39bec121 | 779 | else |
9a736b6b | 780 | as_bad (_(".tag requires a structure tag")); |
39bec121 TW |
781 | ignore_rest_of_line (); |
782 | return; | |
783 | } | |
784 | if (line_label == NULL) | |
785 | { | |
786 | as_bad (_("Label required for .tag")); | |
787 | ignore_rest_of_line (); | |
788 | return; | |
789 | } | |
790 | else | |
791 | { | |
e1fa0163 | 792 | char * label; |
1aea3bb8 | 793 | |
e1fa0163 | 794 | label = xstrdup (S_GET_NAME (line_label)); |
39bec121 | 795 | if (current_stag != NULL) |
9a736b6b NC |
796 | stag_add_field (current_stag, label, |
797 | abs_section_offset - S_GET_VALUE (current_stag->sym), | |
798 | stag); | |
39bec121 | 799 | else |
9a736b6b NC |
800 | { |
801 | symbolS *sym = symbol_find (label); | |
f1e7a2c9 | 802 | |
9a736b6b NC |
803 | if (!sym) |
804 | { | |
805 | as_bad (_(".tag target '%s' undefined"), label); | |
806 | ignore_rest_of_line (); | |
e1fa0163 | 807 | free (label); |
9a736b6b NC |
808 | return; |
809 | } | |
810 | stag_add_field_symbols (stag, S_GET_NAME (sym), | |
811 | S_GET_VALUE (stag->sym), sym, stag->name); | |
812 | } | |
e1fa0163 | 813 | free (label); |
39bec121 | 814 | } |
1aea3bb8 | 815 | |
d0313fb7 | 816 | /* Bump by the struct size, but only if we're within a .struct section. */ |
39bec121 TW |
817 | if (current_stag != NULL && !current_stag->is_union) |
818 | abs_section_offset += stag->size; | |
819 | ||
d02603dc | 820 | (void) restore_line_pointer (c); |
39bec121 TW |
821 | demand_empty_rest_of_line (); |
822 | line_label = NULL; | |
823 | } | |
824 | ||
d0313fb7 | 825 | /* Handle all .byte, .char, .double, .field, .float, .half, .int, .long, |
39bec121 | 826 | .short, .string, .ubyte, .uchar, .uhalf, .uint, .ulong, .ushort, .uword, |
d0313fb7 | 827 | and .word. */ |
9a736b6b | 828 | |
39bec121 | 829 | static void |
5a49b8ac | 830 | tic54x_struct_field (int type) |
39bec121 TW |
831 | { |
832 | int size; | |
833 | int count = 1; | |
834 | int new_bitfield_offset = 0; | |
835 | int field_align = current_stag->current_bitfield_offset != 0; | |
836 | int longword_align = 0; | |
837 | ||
838 | SKIP_WHITESPACE (); | |
3076e594 | 839 | if (!is_end_of_line[(unsigned char) *input_line_pointer]) |
39bec121 TW |
840 | count = get_absolute_expression (); |
841 | ||
842 | switch (type) | |
843 | { | |
844 | case 'b': | |
845 | case 'B': | |
846 | case 'c': | |
847 | case 'C': | |
848 | case 'h': | |
849 | case 'H': | |
850 | case 'i': | |
851 | case 'I': | |
852 | case 's': | |
853 | case 'S': | |
854 | case 'w': | |
855 | case 'W': | |
9a736b6b | 856 | case '*': /* String. */ |
39bec121 TW |
857 | size = 1; |
858 | break; | |
859 | case 'f': | |
860 | case 'l': | |
861 | case 'L': | |
862 | longword_align = 1; | |
863 | size = 2; | |
864 | break; | |
9a736b6b | 865 | case '.': /* Bitfield. */ |
39bec121 TW |
866 | size = 0; |
867 | if (count < 1 || count > 32) | |
9a736b6b NC |
868 | { |
869 | as_bad (_(".field count '%d' out of range (1 <= X <= 32)"), count); | |
870 | ignore_rest_of_line (); | |
871 | return; | |
872 | } | |
39bec121 | 873 | if (current_stag->current_bitfield_offset + count > 16) |
9a736b6b NC |
874 | { |
875 | /* Set the appropriate size and new field offset. */ | |
876 | if (count == 32) | |
877 | { | |
878 | size = 2; | |
1aea3bb8 | 879 | count = 1; |
9a736b6b NC |
880 | } |
881 | else if (count > 16) | |
882 | { | |
883 | size = 1; | |
1aea3bb8 | 884 | count = 1; |
9a736b6b NC |
885 | new_bitfield_offset = count - 16; |
886 | } | |
887 | else | |
f1e7a2c9 | 888 | new_bitfield_offset = count; |
9a736b6b | 889 | } |
39bec121 | 890 | else |
9a736b6b NC |
891 | { |
892 | field_align = 0; | |
893 | new_bitfield_offset = current_stag->current_bitfield_offset + count; | |
894 | } | |
39bec121 TW |
895 | break; |
896 | default: | |
897 | as_bad (_("Unrecognized field type '%c'"), type); | |
898 | ignore_rest_of_line (); | |
899 | return; | |
900 | } | |
901 | ||
902 | if (field_align) | |
903 | { | |
d0313fb7 | 904 | /* Align to the actual starting position of the field. */ |
39bec121 TW |
905 | current_stag->current_bitfield_offset = 0; |
906 | ++abs_section_offset; | |
907 | } | |
d0313fb7 | 908 | /* Align to longword boundary. */ |
39bec121 TW |
909 | if (longword_align && (abs_section_offset & 0x1)) |
910 | ++abs_section_offset; | |
911 | ||
912 | if (line_label == NULL) | |
913 | { | |
914 | static int fieldno = 0; | |
915 | char fake[] = ".fake_fieldNNNNN"; | |
f1e7a2c9 | 916 | |
39bec121 | 917 | sprintf (fake, ".fake_field%d", fieldno++); |
1aea3bb8 | 918 | stag_add_field (current_stag, fake, |
9a736b6b NC |
919 | abs_section_offset - S_GET_VALUE (current_stag->sym), |
920 | NULL); | |
39bec121 TW |
921 | } |
922 | else | |
923 | { | |
e1fa0163 | 924 | char * label; |
f1e7a2c9 | 925 | |
e1fa0163 | 926 | label = xstrdup (S_GET_NAME (line_label)); |
1aea3bb8 | 927 | stag_add_field (current_stag, label, |
9a736b6b NC |
928 | abs_section_offset - S_GET_VALUE (current_stag->sym), |
929 | NULL); | |
e1fa0163 | 930 | free (label); |
39bec121 TW |
931 | } |
932 | ||
933 | if (current_stag->is_union) | |
934 | { | |
d0313fb7 | 935 | /* Note we treat the element as if it were an array of COUNT. */ |
1aea3bb8 | 936 | if (current_stag->size < (unsigned) size * count) |
9a736b6b | 937 | current_stag->size = size * count; |
39bec121 TW |
938 | } |
939 | else | |
940 | { | |
1aea3bb8 | 941 | abs_section_offset += (unsigned) size * count; |
39bec121 TW |
942 | current_stag->current_bitfield_offset = new_bitfield_offset; |
943 | } | |
944 | line_label = NULL; | |
945 | } | |
946 | ||
d0313fb7 | 947 | /* Handle .byte, .word. .int, .long and all variants. */ |
9a736b6b | 948 | |
1aea3bb8 | 949 | static void |
5a49b8ac | 950 | tic54x_cons (int type) |
39bec121 | 951 | { |
f1e7a2c9 | 952 | unsigned int c; |
39bec121 TW |
953 | int octets; |
954 | ||
d0313fb7 | 955 | /* If we're within a .struct construct, don't actually allocate space. */ |
39bec121 TW |
956 | if (current_stag != NULL) |
957 | { | |
958 | tic54x_struct_field (type); | |
959 | return; | |
960 | } | |
961 | ||
962 | #ifdef md_flush_pending_output | |
963 | md_flush_pending_output (); | |
964 | #endif | |
965 | ||
966 | generate_lineno_debug (); | |
967 | ||
d0313fb7 | 968 | /* Align long words to long word boundaries (4 octets). */ |
39bec121 TW |
969 | if (type == 'l' || type == 'L') |
970 | { | |
971 | frag_align (2, 0, 2); | |
d0313fb7 | 972 | /* If there's a label, assign it to the first allocated word. */ |
39bec121 | 973 | if (line_label != NULL) |
9a736b6b NC |
974 | { |
975 | symbol_set_frag (line_label, frag_now); | |
976 | S_SET_VALUE (line_label, frag_now_fix ()); | |
977 | } | |
39bec121 TW |
978 | } |
979 | ||
980 | switch (type) | |
981 | { | |
982 | case 'l': | |
983 | case 'L': | |
984 | case 'x': | |
985 | octets = 4; | |
986 | break; | |
987 | case 'b': | |
988 | case 'B': | |
989 | case 'c': | |
990 | case 'C': | |
991 | octets = 1; | |
992 | break; | |
993 | default: | |
994 | octets = 2; | |
995 | break; | |
996 | } | |
997 | ||
998 | do | |
999 | { | |
1000 | if (*input_line_pointer == '"') | |
1001 | { | |
1002 | input_line_pointer++; | |
1003 | while (is_a_char (c = next_char_of_string ())) | |
1004 | tic54x_emit_char (c); | |
1005 | know (input_line_pointer[-1] == '\"'); | |
1006 | } | |
1007 | else | |
1008 | { | |
91d6fa6a | 1009 | expressionS expn; |
39bec121 | 1010 | |
91d6fa6a NC |
1011 | input_line_pointer = parse_expression (input_line_pointer, &expn); |
1012 | if (expn.X_op == O_constant) | |
39bec121 | 1013 | { |
91d6fa6a | 1014 | offsetT value = expn.X_add_number; |
9a736b6b | 1015 | /* Truncate overflows. */ |
39bec121 TW |
1016 | switch (octets) |
1017 | { | |
1018 | case 1: | |
9a736b6b NC |
1019 | if ((value > 0 && value > 0xFF) |
1020 | || (value < 0 && value < - 0x100)) | |
20203fb9 | 1021 | as_warn (_("Overflow in expression, truncated to 8 bits")); |
39bec121 TW |
1022 | break; |
1023 | case 2: | |
9a736b6b NC |
1024 | if ((value > 0 && value > 0xFFFF) |
1025 | || (value < 0 && value < - 0x10000)) | |
20203fb9 | 1026 | as_warn (_("Overflow in expression, truncated to 16 bits")); |
39bec121 TW |
1027 | break; |
1028 | } | |
1029 | } | |
91d6fa6a | 1030 | if (expn.X_op != O_constant && octets < 2) |
9a736b6b NC |
1031 | { |
1032 | /* Disallow .byte with a non constant expression that will | |
1033 | require relocation. */ | |
1034 | as_bad (_("Relocatable values require at least WORD storage")); | |
1035 | ignore_rest_of_line (); | |
1036 | return; | |
1037 | } | |
1038 | ||
91d6fa6a | 1039 | if (expn.X_op != O_constant |
9a736b6b NC |
1040 | && amode == c_mode |
1041 | && octets == 4) | |
1042 | { | |
1043 | /* FIXME -- at one point TI tools used to output REL16 | |
1044 | relocations, but I don't think the latest tools do at all | |
1045 | The current tools output extended relocations regardless of | |
33b7f697 | 1046 | the addressing mode (I actually think that ".c_mode" is |
9a736b6b NC |
1047 | totally ignored in the latest tools). */ |
1048 | amode = far_mode; | |
1049 | emitting_long = 1; | |
91d6fa6a | 1050 | emit_expr (&expn, 4); |
9a736b6b NC |
1051 | emitting_long = 0; |
1052 | amode = c_mode; | |
1053 | } | |
1054 | else | |
1055 | { | |
1056 | emitting_long = octets == 4; | |
91d6fa6a | 1057 | emit_expr (&expn, (octets == 1) ? 2 : octets); |
9a736b6b NC |
1058 | emitting_long = 0; |
1059 | } | |
39bec121 TW |
1060 | } |
1061 | } | |
1062 | while (*input_line_pointer++ == ','); | |
1063 | ||
1064 | input_line_pointer--; /* Put terminator back into stream. */ | |
1065 | demand_empty_rest_of_line (); | |
1066 | } | |
1067 | ||
1068 | /* .global <symbol>[,...,<symbolN>] | |
1069 | .def <symbol>[,...,<symbolN>] | |
1070 | .ref <symbol>[,...,<symbolN>] | |
1071 | ||
1aea3bb8 | 1072 | These all identify global symbols. |
39bec121 TW |
1073 | |
1074 | .def means the symbol is defined in the current module and can be accessed | |
1075 | by other files. The symbol should be placed in the symbol table. | |
1076 | ||
1077 | .ref means the symbol is used in the current module but defined in another | |
1078 | module. The linker is to resolve this symbol's definition at link time. | |
1079 | ||
1080 | .global should act as a .ref or .def, as needed. | |
1081 | ||
1aea3bb8 | 1082 | global, def and ref all have symbol storage classes of C_EXT. |
39bec121 TW |
1083 | |
1084 | I can't identify any difference in how the "other" c54x assembler treats | |
d0313fb7 | 1085 | these, so we ignore the type here. */ |
9a736b6b | 1086 | |
39bec121 | 1087 | void |
5a49b8ac | 1088 | tic54x_global (int type) |
39bec121 TW |
1089 | { |
1090 | char *name; | |
1091 | int c; | |
1092 | symbolS *symbolP; | |
1093 | ||
1094 | if (type == 'r') | |
9a736b6b | 1095 | as_warn (_("Use of .def/.ref is deprecated. Use .global instead")); |
39bec121 TW |
1096 | |
1097 | ILLEGAL_WITHIN_STRUCT (); | |
1098 | ||
1099 | do | |
1100 | { | |
d02603dc | 1101 | c = get_symbol_name (&name); |
39bec121 | 1102 | symbolP = symbol_find_or_make (name); |
d02603dc | 1103 | c = restore_line_pointer (c); |
39bec121 | 1104 | |
39bec121 TW |
1105 | S_SET_STORAGE_CLASS (symbolP, C_EXT); |
1106 | if (c == ',') | |
1107 | { | |
1108 | input_line_pointer++; | |
3076e594 | 1109 | if (is_end_of_line[(unsigned char) *input_line_pointer]) |
39bec121 TW |
1110 | c = *input_line_pointer; |
1111 | } | |
1112 | } | |
1113 | while (c == ','); | |
1114 | ||
1115 | demand_empty_rest_of_line (); | |
1116 | } | |
1117 | ||
d0313fb7 | 1118 | /* Remove the symbol from the local label hash lookup. */ |
9a736b6b | 1119 | |
39bec121 | 1120 | static void |
5a49b8ac | 1121 | tic54x_remove_local_label (const char *key, void *value ATTRIBUTE_UNUSED) |
39bec121 | 1122 | { |
5a49b8ac | 1123 | void *elem = hash_delete (local_label_hash[macro_level], key, FALSE); |
39bec121 TW |
1124 | free (elem); |
1125 | } | |
1126 | ||
d0313fb7 | 1127 | /* Reset all local labels. */ |
9a736b6b | 1128 | |
1aea3bb8 | 1129 | static void |
5a49b8ac | 1130 | tic54x_clear_local_labels (int ignored ATTRIBUTE_UNUSED) |
39bec121 TW |
1131 | { |
1132 | hash_traverse (local_label_hash[macro_level], tic54x_remove_local_label); | |
1133 | } | |
1134 | ||
d0313fb7 | 1135 | /* .text |
39bec121 TW |
1136 | .data |
1137 | .sect "section name" | |
1138 | ||
1139 | Initialized section | |
1aea3bb8 | 1140 | make sure local labels get cleared when changing sections |
39bec121 TW |
1141 | |
1142 | ARG is 't' for text, 'd' for data, or '*' for a named section | |
1143 | ||
6e917903 TW |
1144 | For compatibility, '*' sections are SEC_CODE if instructions are |
1145 | encountered, or SEC_DATA if not. | |
1146 | */ | |
9a736b6b | 1147 | |
39bec121 | 1148 | static void |
5a49b8ac | 1149 | tic54x_sect (int arg) |
39bec121 TW |
1150 | { |
1151 | ILLEGAL_WITHIN_STRUCT (); | |
1152 | ||
d0313fb7 | 1153 | /* Local labels are cleared when changing sections. */ |
39bec121 TW |
1154 | tic54x_clear_local_labels (0); |
1155 | ||
1156 | if (arg == 't') | |
1157 | s_text (0); | |
1158 | else if (arg == 'd') | |
1159 | s_data (0); | |
1160 | else | |
1161 | { | |
1162 | char *name = NULL; | |
1163 | int len; | |
f10e0aef TS |
1164 | /* Make sure all named initialized sections flagged properly. If we |
1165 | encounter instructions, we'll flag it with SEC_CODE as well. */ | |
1166 | const char *flags = ",\"w\"\n"; | |
f1e7a2c9 | 1167 | |
d0313fb7 | 1168 | /* If there are quotes, remove them. */ |
39bec121 | 1169 | if (*input_line_pointer == '"') |
9a736b6b NC |
1170 | { |
1171 | name = demand_copy_C_string (&len); | |
1172 | demand_empty_rest_of_line (); | |
f10e0aef | 1173 | name = concat (name, flags, (char *) NULL); |
9a736b6b | 1174 | } |
1aea3bb8 | 1175 | else |
9a736b6b NC |
1176 | { |
1177 | int c; | |
d02603dc NC |
1178 | |
1179 | c = get_symbol_name (&name); | |
f10e0aef | 1180 | name = concat (name, flags, (char *) NULL); |
d02603dc | 1181 | (void) restore_line_pointer (c); |
9a736b6b NC |
1182 | demand_empty_rest_of_line (); |
1183 | } | |
d02603dc | 1184 | |
39bec121 TW |
1185 | input_scrub_insert_line (name); |
1186 | obj_coff_section (0); | |
1187 | ||
d0313fb7 | 1188 | /* If there was a line label, make sure that it gets assigned the proper |
9a736b6b NC |
1189 | section. This is for compatibility, even though the actual behavior |
1190 | is not explicitly defined. For consistency, we make .sect behave | |
1191 | like .usect, since that is probably what people expect. */ | |
39bec121 | 1192 | if (line_label != NULL) |
9a736b6b NC |
1193 | { |
1194 | S_SET_SEGMENT (line_label, now_seg); | |
1195 | symbol_set_frag (line_label, frag_now); | |
1196 | S_SET_VALUE (line_label, frag_now_fix ()); | |
1197 | if (S_GET_STORAGE_CLASS (line_label) != C_EXT) | |
1198 | S_SET_STORAGE_CLASS (line_label, C_LABEL); | |
1199 | } | |
39bec121 TW |
1200 | } |
1201 | } | |
1202 | ||
1aea3bb8 | 1203 | /* [symbol] .space space_in_bits |
39bec121 | 1204 | [symbol] .bes space_in_bits |
1aea3bb8 | 1205 | BES puts the symbol at the *last* word allocated |
39bec121 | 1206 | |
d0313fb7 | 1207 | cribbed from s_space. */ |
9a736b6b | 1208 | |
39bec121 | 1209 | static void |
5a49b8ac | 1210 | tic54x_space (int arg) |
39bec121 | 1211 | { |
91d6fa6a | 1212 | expressionS expn; |
39bec121 TW |
1213 | char *p = 0; |
1214 | int octets = 0; | |
1215 | long words; | |
1216 | int bits_per_byte = (OCTETS_PER_BYTE * 8); | |
1217 | int bit_offset = 0; | |
1218 | symbolS *label = line_label; | |
1219 | int bes = arg; | |
1220 | ||
1221 | ILLEGAL_WITHIN_STRUCT (); | |
1222 | ||
1223 | #ifdef md_flush_pending_output | |
1224 | md_flush_pending_output (); | |
1225 | #endif | |
1226 | ||
d0313fb7 | 1227 | /* Read the bit count. */ |
91d6fa6a | 1228 | expression (&expn); |
39bec121 | 1229 | |
d0313fb7 | 1230 | /* Some expressions are unresolvable until later in the assembly pass; |
39bec121 | 1231 | postpone until relaxation/fixup. we also have to postpone if a previous |
d0313fb7 | 1232 | partial allocation has not been completed yet. */ |
91d6fa6a | 1233 | if (expn.X_op != O_constant || frag_bit_offset (frag_now, now_seg) == -1) |
39bec121 | 1234 | { |
325801bd | 1235 | struct bit_info *bi = XNEW (struct bit_info); |
39bec121 TW |
1236 | |
1237 | bi->seg = now_seg; | |
1238 | bi->type = bes; | |
1239 | bi->sym = label; | |
1aea3bb8 | 1240 | p = frag_var (rs_machine_dependent, |
9a736b6b | 1241 | 65536 * 2, 1, (relax_substateT) 0, |
91d6fa6a | 1242 | make_expr_symbol (&expn), (offsetT) 0, |
9a736b6b | 1243 | (char *) bi); |
39bec121 | 1244 | if (p) |
9a736b6b | 1245 | *p = 0; |
39bec121 TW |
1246 | |
1247 | return; | |
1248 | } | |
1249 | ||
d0313fb7 NC |
1250 | /* Reduce the required size by any bit offsets currently left over |
1251 | from a previous .space/.bes/.field directive. */ | |
39bec121 TW |
1252 | bit_offset = frag_now->tc_frag_data; |
1253 | if (bit_offset != 0 && bit_offset < 16) | |
1254 | { | |
1255 | int spare_bits = bits_per_byte - bit_offset; | |
f1e7a2c9 | 1256 | |
91d6fa6a | 1257 | if (spare_bits >= expn.X_add_number) |
9a736b6b NC |
1258 | { |
1259 | /* Don't have to do anything; sufficient bits have already been | |
1260 | allocated; just point the label to the right place. */ | |
1261 | if (label != NULL) | |
1262 | { | |
1263 | symbol_set_frag (label, frag_now); | |
1264 | S_SET_VALUE (label, frag_now_fix () - 1); | |
1265 | label = NULL; | |
1266 | } | |
91d6fa6a | 1267 | frag_now->tc_frag_data += expn.X_add_number; |
9a736b6b NC |
1268 | goto getout; |
1269 | } | |
91d6fa6a | 1270 | expn.X_add_number -= spare_bits; |
d0313fb7 | 1271 | /* Set the label to point to the first word allocated, which in this |
9a736b6b | 1272 | case is the previous word, which was only partially filled. */ |
39bec121 | 1273 | if (!bes && label != NULL) |
9a736b6b NC |
1274 | { |
1275 | symbol_set_frag (label, frag_now); | |
1276 | S_SET_VALUE (label, frag_now_fix () - 1); | |
1277 | label = NULL; | |
1278 | } | |
39bec121 | 1279 | } |
d0313fb7 | 1280 | /* Convert bits to bytes/words and octets, rounding up. */ |
91d6fa6a | 1281 | words = ((expn.X_add_number + bits_per_byte - 1) / bits_per_byte); |
d0313fb7 | 1282 | /* How many do we have left over? */ |
91d6fa6a | 1283 | bit_offset = expn.X_add_number % bits_per_byte; |
39bec121 TW |
1284 | octets = words * OCTETS_PER_BYTE; |
1285 | if (octets < 0) | |
1286 | { | |
1287 | as_warn (_(".space/.bes repeat count is negative, ignored")); | |
1288 | goto getout; | |
1289 | } | |
1290 | else if (octets == 0) | |
1291 | { | |
1292 | as_warn (_(".space/.bes repeat count is zero, ignored")); | |
1293 | goto getout; | |
1294 | } | |
1aea3bb8 | 1295 | |
39bec121 TW |
1296 | /* If we are in the absolute section, just bump the offset. */ |
1297 | if (now_seg == absolute_section) | |
1298 | { | |
1299 | abs_section_offset += words; | |
1300 | if (bes && label != NULL) | |
9a736b6b | 1301 | S_SET_VALUE (label, abs_section_offset - 1); |
39bec121 TW |
1302 | frag_now->tc_frag_data = bit_offset; |
1303 | goto getout; | |
1304 | } | |
1aea3bb8 | 1305 | |
39bec121 | 1306 | if (!need_pass_2) |
1aea3bb8 | 1307 | p = frag_var (rs_fill, 1, 1, |
9a736b6b NC |
1308 | (relax_substateT) 0, (symbolS *) 0, |
1309 | (offsetT) octets, (char *) 0); | |
39bec121 | 1310 | |
d0313fb7 | 1311 | /* Make note of how many bits of this word we've allocated so far. */ |
39bec121 TW |
1312 | frag_now->tc_frag_data = bit_offset; |
1313 | ||
d0313fb7 | 1314 | /* .bes puts label at *last* word allocated. */ |
39bec121 TW |
1315 | if (bes && label != NULL) |
1316 | { | |
1317 | symbol_set_frag (label, frag_now); | |
1aea3bb8 | 1318 | S_SET_VALUE (label, frag_now_fix () - 1); |
39bec121 | 1319 | } |
1aea3bb8 | 1320 | |
39bec121 TW |
1321 | if (p) |
1322 | *p = 0; | |
1323 | ||
1324 | getout: | |
1325 | ||
1326 | demand_empty_rest_of_line (); | |
1327 | } | |
1328 | ||
1aea3bb8 | 1329 | /* [symbol] .usect "section-name", size-in-words |
9a736b6b | 1330 | [, [blocking-flag] [, alignment-flag]] |
39bec121 | 1331 | |
33b7f697 | 1332 | Uninitialized section. |
39bec121 TW |
1333 | Non-zero blocking means that if the section would cross a page (128-word) |
1334 | boundary, it will be page-aligned. | |
1335 | Non-zero alignment aligns on a longword boundary. | |
1336 | ||
d0313fb7 | 1337 | Has no effect on the current section. */ |
9a736b6b | 1338 | |
1aea3bb8 | 1339 | static void |
5a49b8ac | 1340 | tic54x_usect (int x ATTRIBUTE_UNUSED) |
39bec121 TW |
1341 | { |
1342 | char c; | |
1343 | char *name; | |
1344 | char *section_name; | |
1345 | char *p; | |
1346 | segT seg; | |
1347 | int size, blocking_flag, alignment_flag; | |
1348 | segT current_seg; | |
1349 | subsegT current_subseg; | |
1350 | flagword flags; | |
1351 | ||
1352 | ILLEGAL_WITHIN_STRUCT (); | |
1353 | ||
9a736b6b NC |
1354 | current_seg = now_seg; /* Save current seg. */ |
1355 | current_subseg = now_subseg; /* Save current subseg. */ | |
39bec121 | 1356 | |
d02603dc | 1357 | c = get_symbol_name (§ion_name); /* Get terminator. */ |
4ec9d7d5 | 1358 | name = xstrdup (section_name); |
d02603dc NC |
1359 | c = restore_line_pointer (c); |
1360 | ||
1361 | if (c == ',') | |
39bec121 | 1362 | ++input_line_pointer; |
d02603dc | 1363 | else |
39bec121 TW |
1364 | { |
1365 | as_bad (_("Missing size argument")); | |
1366 | ignore_rest_of_line (); | |
1367 | return; | |
1368 | } | |
1369 | ||
1370 | size = get_absolute_expression (); | |
1371 | ||
d0313fb7 | 1372 | /* Read a possibly present third argument (blocking flag). */ |
39bec121 TW |
1373 | if (*input_line_pointer == ',') |
1374 | { | |
1375 | ++input_line_pointer; | |
1376 | if (*input_line_pointer != ',') | |
9a736b6b | 1377 | blocking_flag = get_absolute_expression (); |
39bec121 | 1378 | else |
9a736b6b | 1379 | blocking_flag = 0; |
39bec121 | 1380 | |
d0313fb7 | 1381 | /* Read a possibly present fourth argument (alignment flag). */ |
39bec121 | 1382 | if (*input_line_pointer == ',') |
9a736b6b NC |
1383 | { |
1384 | ++input_line_pointer; | |
1385 | alignment_flag = get_absolute_expression (); | |
1386 | } | |
39bec121 | 1387 | else |
9a736b6b | 1388 | alignment_flag = 0; |
39bec121 TW |
1389 | } |
1390 | else | |
1391 | blocking_flag = alignment_flag = 0; | |
1392 | ||
1393 | seg = subseg_new (name, 0); | |
1394 | flags = bfd_get_section_flags (stdoutput, seg) | SEC_ALLOC; | |
1395 | ||
1396 | if (alignment_flag) | |
1397 | { | |
d0313fb7 | 1398 | /* s_align eats end of line; restore it. */ |
39bec121 TW |
1399 | s_align_bytes (4); |
1400 | --input_line_pointer; | |
1401 | } | |
1402 | ||
1403 | if (line_label != NULL) | |
1404 | { | |
1405 | S_SET_SEGMENT (line_label, seg); | |
1406 | symbol_set_frag (line_label, frag_now); | |
1407 | S_SET_VALUE (line_label, frag_now_fix ()); | |
9a736b6b | 1408 | /* Set scl to label, since that's what TI does. */ |
39bec121 | 1409 | if (S_GET_STORAGE_CLASS (line_label) != C_EXT) |
9a736b6b | 1410 | S_SET_STORAGE_CLASS (line_label, C_LABEL); |
39bec121 TW |
1411 | } |
1412 | ||
1413 | seg_info (seg)->bss = 1; /* Uninitialized data. */ | |
1414 | ||
1aea3bb8 | 1415 | p = frag_var (rs_fill, 1, 1, |
9a736b6b NC |
1416 | (relax_substateT) 0, (symbolS *) line_label, |
1417 | size * OCTETS_PER_BYTE, (char *) 0); | |
39bec121 TW |
1418 | *p = 0; |
1419 | ||
1420 | if (blocking_flag) | |
ebe372c1 | 1421 | flags |= SEC_TIC54X_BLOCK; |
39bec121 TW |
1422 | |
1423 | if (!bfd_set_section_flags (stdoutput, seg, flags)) | |
20203fb9 | 1424 | as_warn (_("Error setting flags for \"%s\": %s"), name, |
39bec121 TW |
1425 | bfd_errmsg (bfd_get_error ())); |
1426 | ||
1427 | subseg_set (current_seg, current_subseg); /* Restore current seg. */ | |
1428 | demand_empty_rest_of_line (); | |
1aea3bb8 | 1429 | } |
39bec121 TW |
1430 | |
1431 | static enum cpu_version | |
5a49b8ac | 1432 | lookup_version (const char *ver) |
39bec121 TW |
1433 | { |
1434 | enum cpu_version version = VNONE; | |
1aea3bb8 | 1435 | |
39bec121 TW |
1436 | if (ver[0] == '5' && ver[1] == '4') |
1437 | { | |
9a736b6b NC |
1438 | if (strlen (ver) == 3 |
1439 | && (ver[2] == '1' || ver[2] == '2' || ver[2] == '3' | |
1440 | || ver[2] == '5' || ver[2] == '8' || ver[2] == '9')) | |
1441 | version = ver[2] - '0'; | |
1442 | else if (strlen (ver) == 5 | |
3882b010 L |
1443 | && TOUPPER (ver[3]) == 'L' |
1444 | && TOUPPER (ver[4]) == 'P' | |
9a736b6b NC |
1445 | && (ver[2] == '5' || ver[2] == '6')) |
1446 | version = ver[2] - '0' + 10; | |
39bec121 TW |
1447 | } |
1448 | ||
1449 | return version; | |
1450 | } | |
1451 | ||
1452 | static void | |
5a49b8ac | 1453 | set_cpu (enum cpu_version version) |
39bec121 TW |
1454 | { |
1455 | cpu = version; | |
1456 | if (version == V545LP || version == V546LP) | |
1457 | { | |
1458 | symbolS *symbolP = symbol_new ("__allow_lp", absolute_section, | |
9a736b6b | 1459 | (valueT) 1, &zero_address_frag); |
39bec121 TW |
1460 | SF_SET_LOCAL (symbolP); |
1461 | symbol_table_insert (symbolP); | |
1462 | } | |
1463 | } | |
1464 | ||
1aea3bb8 | 1465 | /* .version cpu-version |
39bec121 TW |
1466 | cpu-version may be one of the following: |
1467 | 541 | |
1468 | 542 | |
1469 | 543 | |
1470 | 545 | |
1471 | 545LP | |
1472 | 546LP | |
1473 | 548 | |
1474 | 549 | |
1475 | ||
d0313fb7 | 1476 | This is for compatibility only. It currently has no affect on assembly. */ |
39bec121 | 1477 | static int cpu_needs_set = 1; |
d0313fb7 | 1478 | |
1aea3bb8 | 1479 | static void |
5a49b8ac | 1480 | tic54x_version (int x ATTRIBUTE_UNUSED) |
39bec121 TW |
1481 | { |
1482 | enum cpu_version version = VNONE; | |
1483 | enum cpu_version old_version = cpu; | |
1484 | int c; | |
1485 | char *ver; | |
1486 | ||
1487 | ILLEGAL_WITHIN_STRUCT (); | |
1488 | ||
1489 | SKIP_WHITESPACE (); | |
1490 | ver = input_line_pointer; | |
3076e594 | 1491 | while (!is_end_of_line[(unsigned char) *input_line_pointer]) |
39bec121 TW |
1492 | ++input_line_pointer; |
1493 | c = *input_line_pointer; | |
1494 | *input_line_pointer = 0; | |
1aea3bb8 | 1495 | |
39bec121 TW |
1496 | version = lookup_version (ver); |
1497 | ||
1498 | if (cpu != VNONE && cpu != version) | |
1499 | as_warn (_("CPU version has already been set")); | |
1500 | ||
1501 | if (version == VNONE) | |
1502 | { | |
1503 | as_bad (_("Unrecognized version '%s'"), ver); | |
1504 | ignore_rest_of_line (); | |
1505 | return; | |
1506 | } | |
1507 | else if (assembly_begun && version != old_version) | |
1508 | { | |
1509 | as_bad (_("Changing of CPU version on the fly not supported")); | |
1510 | ignore_rest_of_line (); | |
1511 | return; | |
1512 | } | |
1513 | ||
1514 | set_cpu (version); | |
1515 | ||
1516 | *input_line_pointer = c; | |
1517 | demand_empty_rest_of_line (); | |
1518 | } | |
1519 | ||
d0313fb7 | 1520 | /* 'f' = float, 'x' = xfloat, 'd' = double, 'l' = ldouble. */ |
9a736b6b | 1521 | |
39bec121 | 1522 | static void |
5a49b8ac | 1523 | tic54x_float_cons (int type) |
39bec121 TW |
1524 | { |
1525 | if (current_stag != 0) | |
d0313fb7 | 1526 | tic54x_struct_field ('f'); |
39bec121 TW |
1527 | |
1528 | #ifdef md_flush_pending_output | |
1529 | md_flush_pending_output (); | |
1530 | #endif | |
1aea3bb8 | 1531 | |
d0313fb7 | 1532 | /* Align to long word boundary (4 octets) unless it's ".xfloat". */ |
39bec121 TW |
1533 | if (type != 'x') |
1534 | { | |
1535 | frag_align (2, 0, 2); | |
d0313fb7 | 1536 | /* If there's a label, assign it to the first allocated word. */ |
39bec121 | 1537 | if (line_label != NULL) |
9a736b6b NC |
1538 | { |
1539 | symbol_set_frag (line_label, frag_now); | |
1540 | S_SET_VALUE (line_label, frag_now_fix ()); | |
1541 | } | |
39bec121 TW |
1542 | } |
1543 | ||
1544 | float_cons ('f'); | |
1545 | } | |
1546 | ||
1aea3bb8 | 1547 | /* The argument is capitalized if it should be zero-terminated |
39bec121 | 1548 | 's' is normal string with upper 8-bits zero-filled, 'p' is packed. |
5d6255fe | 1549 | Code copied from stringer, and slightly modified so that strings are packed |
d0313fb7 | 1550 | and encoded into the correct octets. */ |
9a736b6b | 1551 | |
39bec121 | 1552 | static void |
5a49b8ac | 1553 | tic54x_stringer (int type) |
39bec121 | 1554 | { |
f1e7a2c9 | 1555 | unsigned int c; |
39bec121 TW |
1556 | int append_zero = type == 'S' || type == 'P'; |
1557 | int packed = type == 'p' || type == 'P'; | |
d0313fb7 | 1558 | int last_char = -1; /* Packed strings need two bytes at a time to encode. */ |
39bec121 TW |
1559 | |
1560 | if (current_stag != NULL) | |
1561 | { | |
1562 | tic54x_struct_field ('*'); | |
1563 | return; | |
1564 | } | |
1565 | ||
1566 | #ifdef md_flush_pending_output | |
1567 | md_flush_pending_output (); | |
1568 | #endif | |
1569 | ||
1dab94dd | 1570 | c = ','; /* Do loop. */ |
39bec121 TW |
1571 | while (c == ',') |
1572 | { | |
1573 | SKIP_WHITESPACE (); | |
1574 | switch (*input_line_pointer) | |
1575 | { | |
9a736b6b NC |
1576 | default: |
1577 | { | |
1578 | unsigned short value = get_absolute_expression (); | |
1579 | FRAG_APPEND_1_CHAR ( value & 0xFF); | |
1580 | FRAG_APPEND_1_CHAR ((value >> 8) & 0xFF); | |
1581 | break; | |
1582 | } | |
39bec121 | 1583 | case '\"': |
9a736b6b | 1584 | ++input_line_pointer; /* -> 1st char of string. */ |
39bec121 TW |
1585 | while (is_a_char (c = next_char_of_string ())) |
1586 | { | |
9a736b6b NC |
1587 | if (!packed) |
1588 | { | |
1589 | FRAG_APPEND_1_CHAR (c); | |
1590 | FRAG_APPEND_1_CHAR (0); | |
1591 | } | |
1592 | else | |
1593 | { | |
1594 | /* Packed strings are filled MS octet first. */ | |
1595 | if (last_char == -1) | |
1596 | last_char = c; | |
1597 | else | |
1598 | { | |
1599 | FRAG_APPEND_1_CHAR (c); | |
1600 | FRAG_APPEND_1_CHAR (last_char); | |
1601 | last_char = -1; | |
1602 | } | |
1603 | } | |
39bec121 TW |
1604 | } |
1605 | if (append_zero) | |
9a736b6b NC |
1606 | { |
1607 | if (packed && last_char != -1) | |
1608 | { | |
1609 | FRAG_APPEND_1_CHAR (0); | |
1610 | FRAG_APPEND_1_CHAR (last_char); | |
1611 | last_char = -1; | |
1612 | } | |
1613 | else | |
1614 | { | |
1615 | FRAG_APPEND_1_CHAR (0); | |
1616 | FRAG_APPEND_1_CHAR (0); | |
1617 | } | |
1618 | } | |
39bec121 TW |
1619 | know (input_line_pointer[-1] == '\"'); |
1620 | break; | |
1621 | } | |
1622 | SKIP_WHITESPACE (); | |
1623 | c = *input_line_pointer; | |
1624 | if (!is_end_of_line[c]) | |
9a736b6b | 1625 | ++input_line_pointer; |
39bec121 TW |
1626 | } |
1627 | ||
d0313fb7 | 1628 | /* Finish up any leftover packed string. */ |
39bec121 TW |
1629 | if (packed && last_char != -1) |
1630 | { | |
1631 | FRAG_APPEND_1_CHAR (0); | |
1632 | FRAG_APPEND_1_CHAR (last_char); | |
1633 | } | |
1634 | demand_empty_rest_of_line (); | |
1635 | } | |
1636 | ||
1637 | static void | |
5a49b8ac | 1638 | tic54x_p2align (int arg ATTRIBUTE_UNUSED) |
39bec121 TW |
1639 | { |
1640 | as_bad (_("p2align not supported on this target")); | |
1641 | } | |
1642 | ||
1643 | static void | |
5a49b8ac | 1644 | tic54x_align_words (int arg) |
39bec121 | 1645 | { |
d0313fb7 | 1646 | /* Only ".align" with no argument is allowed within .struct/.union. */ |
39bec121 TW |
1647 | int count = arg; |
1648 | ||
3076e594 | 1649 | if (!is_end_of_line[(unsigned char) *input_line_pointer]) |
39bec121 TW |
1650 | { |
1651 | if (arg == 2) | |
9a736b6b | 1652 | as_warn (_("Argument to .even ignored")); |
39bec121 | 1653 | else |
9a736b6b | 1654 | count = get_absolute_expression (); |
39bec121 TW |
1655 | } |
1656 | ||
1657 | if (current_stag != NULL && arg == 128) | |
1658 | { | |
1659 | if (current_stag->current_bitfield_offset != 0) | |
9a736b6b NC |
1660 | { |
1661 | current_stag->current_bitfield_offset = 0; | |
1662 | ++abs_section_offset; | |
1663 | } | |
39bec121 TW |
1664 | demand_empty_rest_of_line (); |
1665 | return; | |
1666 | } | |
1667 | ||
1668 | ILLEGAL_WITHIN_STRUCT (); | |
1669 | ||
1670 | s_align_bytes (count << 1); | |
1671 | } | |
1672 | ||
2b0f3761 | 1673 | /* Initialize multiple-bit fields within a single word of memory. */ |
9a736b6b | 1674 | |
39bec121 | 1675 | static void |
5a49b8ac | 1676 | tic54x_field (int ignore ATTRIBUTE_UNUSED) |
39bec121 | 1677 | { |
91d6fa6a | 1678 | expressionS expn; |
39bec121 TW |
1679 | int size = 16; |
1680 | char *p; | |
1681 | valueT value; | |
1682 | symbolS *label = line_label; | |
1683 | ||
1684 | if (current_stag != NULL) | |
1685 | { | |
1686 | tic54x_struct_field ('.'); | |
1687 | return; | |
1688 | } | |
1689 | ||
91d6fa6a | 1690 | input_line_pointer = parse_expression (input_line_pointer, &expn); |
39bec121 TW |
1691 | |
1692 | if (*input_line_pointer == ',') | |
1693 | { | |
1694 | ++input_line_pointer; | |
1695 | size = get_absolute_expression (); | |
1696 | if (size < 1 || size > 32) | |
9a736b6b NC |
1697 | { |
1698 | as_bad (_("Invalid field size, must be from 1 to 32")); | |
1699 | ignore_rest_of_line (); | |
1700 | return; | |
1701 | } | |
39bec121 TW |
1702 | } |
1703 | ||
d0313fb7 | 1704 | /* Truncate values to the field width. */ |
91d6fa6a | 1705 | if (expn.X_op != O_constant) |
39bec121 | 1706 | { |
9a736b6b NC |
1707 | /* If the expression value is relocatable, the field size *must* |
1708 | be 16. */ | |
39bec121 | 1709 | if (size != 16) |
9a736b6b NC |
1710 | { |
1711 | as_bad (_("field size must be 16 when value is relocatable")); | |
1712 | ignore_rest_of_line (); | |
1713 | return; | |
1714 | } | |
39bec121 TW |
1715 | |
1716 | frag_now->tc_frag_data = 0; | |
91d6fa6a | 1717 | emit_expr (&expn, 2); |
39bec121 TW |
1718 | } |
1719 | else | |
1720 | { | |
1721 | unsigned long fmask = (size == 32) ? 0xFFFFFFFF : (1ul << size) - 1; | |
f1e7a2c9 | 1722 | |
91d6fa6a NC |
1723 | value = expn.X_add_number; |
1724 | expn.X_add_number &= fmask; | |
1725 | if (value != (valueT) expn.X_add_number) | |
9a736b6b | 1726 | as_warn (_("field value truncated")); |
91d6fa6a | 1727 | value = expn.X_add_number; |
d0313fb7 | 1728 | /* Bits are stored MS first. */ |
39bec121 | 1729 | while (size >= 16) |
9a736b6b NC |
1730 | { |
1731 | frag_now->tc_frag_data = 0; | |
1732 | p = frag_more (2); | |
1733 | md_number_to_chars (p, (value >> (size - 16)) & 0xFFFF, 2); | |
1734 | size -= 16; | |
1735 | } | |
39bec121 | 1736 | if (size > 0) |
9a736b6b NC |
1737 | { |
1738 | int bit_offset = frag_bit_offset (frag_now, now_seg); | |
f1e7a2c9 | 1739 | |
9a736b6b NC |
1740 | fragS *alloc_frag = bit_offset_frag (frag_now, now_seg); |
1741 | if (bit_offset == -1) | |
1742 | { | |
325801bd | 1743 | struct bit_info *bi = XNEW (struct bit_info); |
9a736b6b NC |
1744 | /* We don't know the previous offset at this time, so store the |
1745 | info we need and figure it out later. */ | |
1746 | expressionS size_exp; | |
f1e7a2c9 | 1747 | |
9a736b6b NC |
1748 | size_exp.X_op = O_constant; |
1749 | size_exp.X_add_number = size; | |
1750 | bi->seg = now_seg; | |
1751 | bi->type = TYPE_FIELD; | |
1752 | bi->value = value; | |
1753 | p = frag_var (rs_machine_dependent, | |
1754 | 4, 1, (relax_substateT) 0, | |
1755 | make_expr_symbol (&size_exp), (offsetT) 0, | |
1756 | (char *) bi); | |
1757 | goto getout; | |
1758 | } | |
1759 | else if (bit_offset == 0 || bit_offset + size > 16) | |
1760 | { | |
1761 | /* Align a new field. */ | |
1762 | p = frag_more (2); | |
1763 | frag_now->tc_frag_data = 0; | |
1764 | alloc_frag = frag_now; | |
1765 | } | |
1766 | else | |
1767 | { | |
1768 | /* Put the new value entirely within the existing one. */ | |
1769 | p = alloc_frag == frag_now ? | |
1770 | frag_now->fr_literal + frag_now_fix_octets () - 2 : | |
1771 | alloc_frag->fr_literal; | |
1772 | if (label != NULL) | |
1773 | { | |
1774 | symbol_set_frag (label, alloc_frag); | |
1775 | if (alloc_frag == frag_now) | |
1776 | S_SET_VALUE (label, frag_now_fix () - 1); | |
1777 | label = NULL; | |
1778 | } | |
1779 | } | |
1780 | value <<= 16 - alloc_frag->tc_frag_data - size; | |
1781 | ||
1782 | /* OR in existing value. */ | |
1783 | if (alloc_frag->tc_frag_data) | |
1784 | value |= ((unsigned short) p[1] << 8) | p[0]; | |
1785 | md_number_to_chars (p, value, 2); | |
1786 | alloc_frag->tc_frag_data += size; | |
1787 | if (alloc_frag->tc_frag_data == 16) | |
1788 | alloc_frag->tc_frag_data = 0; | |
1789 | } | |
39bec121 TW |
1790 | } |
1791 | getout: | |
1792 | demand_empty_rest_of_line (); | |
1793 | } | |
1794 | ||
1795 | /* Ideally, we want to check SEC_LOAD and SEC_HAS_CONTENTS, but those aren't | |
d0313fb7 | 1796 | available yet. seg_info ()->bss is the next best thing. */ |
9a736b6b | 1797 | |
39bec121 | 1798 | static int |
5a49b8ac | 1799 | tic54x_initialized_section (segT seg) |
39bec121 TW |
1800 | { |
1801 | return !seg_info (seg)->bss; | |
1802 | } | |
1803 | ||
1aea3bb8 | 1804 | /* .clink ["section name"] |
39bec121 TW |
1805 | |
1806 | Marks the section as conditionally linked (link only if contents are | |
1807 | referenced elsewhere. | |
1808 | Without a name, refers to the current initialized section. | |
d0313fb7 | 1809 | Name is required for uninitialized sections. */ |
9a736b6b | 1810 | |
39bec121 | 1811 | static void |
5a49b8ac | 1812 | tic54x_clink (int ignored ATTRIBUTE_UNUSED) |
39bec121 TW |
1813 | { |
1814 | segT seg = now_seg; | |
1815 | ||
1816 | ILLEGAL_WITHIN_STRUCT (); | |
1817 | ||
1818 | if (*input_line_pointer == '\"') | |
1819 | { | |
1820 | char *section_name = ++input_line_pointer; | |
1821 | char *name; | |
f1e7a2c9 | 1822 | |
39bec121 | 1823 | while (is_a_char (next_char_of_string ())) |
9a736b6b | 1824 | ; |
39bec121 TW |
1825 | know (input_line_pointer[-1] == '\"'); |
1826 | input_line_pointer[-1] = 0; | |
4ec9d7d5 | 1827 | name = xstrdup (section_name); |
39bec121 TW |
1828 | |
1829 | seg = bfd_get_section_by_name (stdoutput, name); | |
1830 | if (seg == NULL) | |
9a736b6b NC |
1831 | { |
1832 | as_bad (_("Unrecognized section '%s'"), section_name); | |
1833 | ignore_rest_of_line (); | |
1834 | return; | |
1835 | } | |
39bec121 TW |
1836 | } |
1837 | else | |
1838 | { | |
1839 | if (!tic54x_initialized_section (seg)) | |
9a736b6b | 1840 | { |
33eaf5de | 1841 | as_bad (_("Current section is uninitialized, " |
9a736b6b NC |
1842 | "section name required for .clink")); |
1843 | ignore_rest_of_line (); | |
1844 | return; | |
1845 | } | |
39bec121 TW |
1846 | } |
1847 | ||
ebe372c1 | 1848 | seg->flags |= SEC_TIC54X_CLINK; |
39bec121 TW |
1849 | |
1850 | demand_empty_rest_of_line (); | |
1851 | } | |
1852 | ||
d0313fb7 | 1853 | /* Change the default include directory to be the current source file's |
39bec121 | 1854 | directory, instead of the current working directory. If DOT is non-zero, |
d0313fb7 | 1855 | set to "." instead. */ |
9a736b6b | 1856 | |
39bec121 | 1857 | static void |
4b92e388 | 1858 | tic54x_set_default_include (void) |
39bec121 | 1859 | { |
4b92e388 TS |
1860 | char *dir, *tmp = NULL; |
1861 | const char *curfile; | |
1862 | unsigned lineno; | |
1aea3bb8 | 1863 | |
4b92e388 TS |
1864 | curfile = as_where (&lineno); |
1865 | dir = xstrdup (curfile); | |
1866 | tmp = strrchr (dir, '/'); | |
39bec121 TW |
1867 | if (tmp != NULL) |
1868 | { | |
1869 | int len; | |
f1e7a2c9 | 1870 | |
39bec121 TW |
1871 | *tmp = '\0'; |
1872 | len = strlen (dir); | |
1873 | if (include_dir_count == 0) | |
9a736b6b | 1874 | { |
e0471c16 | 1875 | include_dirs = XNEWVEC (const char *, 1); |
9a736b6b NC |
1876 | include_dir_count = 1; |
1877 | } | |
39bec121 TW |
1878 | include_dirs[0] = dir; |
1879 | if (len > include_dir_maxlen) | |
9a736b6b | 1880 | include_dir_maxlen = len; |
39bec121 TW |
1881 | } |
1882 | else if (include_dirs != NULL) | |
1883 | include_dirs[0] = "."; | |
1884 | } | |
1885 | ||
1aea3bb8 | 1886 | /* .include "filename" | filename |
39bec121 TW |
1887 | .copy "filename" | filename |
1888 | ||
1aea3bb8 | 1889 | FIXME 'include' file should be omitted from any output listing, |
39bec121 TW |
1890 | 'copy' should be included in any output listing |
1891 | FIXME -- prevent any included files from changing listing (compat only) | |
1892 | FIXME -- need to include source file directory in search path; what's a | |
1893 | good way to do this? | |
1894 | ||
d0313fb7 | 1895 | Entering/exiting included/copied file clears all local labels. */ |
9a736b6b | 1896 | |
39bec121 | 1897 | static void |
5a49b8ac | 1898 | tic54x_include (int ignored ATTRIBUTE_UNUSED) |
39bec121 TW |
1899 | { |
1900 | char newblock[] = " .newblock\n"; | |
1901 | char *filename; | |
1902 | char *input; | |
1903 | int len, c = -1; | |
1904 | ||
1905 | ILLEGAL_WITHIN_STRUCT (); | |
1aea3bb8 | 1906 | |
39bec121 TW |
1907 | SKIP_WHITESPACE (); |
1908 | ||
1909 | if (*input_line_pointer == '"') | |
1910 | { | |
1911 | filename = demand_copy_C_string (&len); | |
1912 | demand_empty_rest_of_line (); | |
1913 | } | |
1914 | else | |
1915 | { | |
1916 | filename = input_line_pointer; | |
3076e594 | 1917 | while (!is_end_of_line[(unsigned char) *input_line_pointer]) |
9a736b6b | 1918 | ++input_line_pointer; |
39bec121 TW |
1919 | c = *input_line_pointer; |
1920 | *input_line_pointer = '\0'; | |
4ec9d7d5 | 1921 | filename = xstrdup (filename); |
39bec121 TW |
1922 | *input_line_pointer = c; |
1923 | demand_empty_rest_of_line (); | |
1924 | } | |
1925 | /* Insert a partial line with the filename (for the sake of s_include) | |
1926 | and a .newblock. | |
1927 | The included file will be inserted before the newblock, so that the | |
d0313fb7 | 1928 | newblock is executed after the included file is processed. */ |
29a2809e | 1929 | input = concat ("\"", filename, "\"\n", newblock, (char *) NULL); |
39bec121 TW |
1930 | input_scrub_insert_line (input); |
1931 | ||
1932 | tic54x_clear_local_labels (0); | |
1933 | ||
4b92e388 | 1934 | tic54x_set_default_include (); |
39bec121 TW |
1935 | |
1936 | s_include (0); | |
1937 | } | |
1938 | ||
1939 | static void | |
5a49b8ac | 1940 | tic54x_message (int type) |
39bec121 TW |
1941 | { |
1942 | char *msg; | |
1943 | char c; | |
1944 | int len; | |
1945 | ||
1946 | ILLEGAL_WITHIN_STRUCT (); | |
1947 | ||
1948 | if (*input_line_pointer == '"') | |
1949 | msg = demand_copy_C_string (&len); | |
1950 | else | |
1951 | { | |
1952 | msg = input_line_pointer; | |
3076e594 | 1953 | while (!is_end_of_line[(unsigned char) *input_line_pointer]) |
9a736b6b | 1954 | ++input_line_pointer; |
39bec121 TW |
1955 | c = *input_line_pointer; |
1956 | *input_line_pointer = 0; | |
4ec9d7d5 | 1957 | msg = xstrdup (msg); |
39bec121 TW |
1958 | *input_line_pointer = c; |
1959 | } | |
1960 | ||
1961 | switch (type) | |
1962 | { | |
1963 | case 'm': | |
1964 | as_tsktsk ("%s", msg); | |
1965 | break; | |
1966 | case 'w': | |
1967 | as_warn ("%s", msg); | |
1968 | break; | |
1969 | case 'e': | |
1970 | as_bad ("%s", msg); | |
1971 | break; | |
1972 | } | |
1973 | ||
1974 | demand_empty_rest_of_line (); | |
1975 | } | |
1976 | ||
1aea3bb8 | 1977 | /* .label <symbol> |
9a736b6b | 1978 | Define a special symbol that refers to the loadtime address rather than the |
39bec121 TW |
1979 | runtime address within the current section. |
1980 | ||
1981 | This symbol gets a special storage class so that when it is resolved, it is | |
1982 | resolved relative to the load address (lma) of the section rather than the | |
d0313fb7 | 1983 | run address (vma). */ |
9a736b6b | 1984 | |
39bec121 | 1985 | static void |
5a49b8ac | 1986 | tic54x_label (int ignored ATTRIBUTE_UNUSED) |
39bec121 | 1987 | { |
d02603dc | 1988 | char *name; |
39bec121 TW |
1989 | symbolS *symbolP; |
1990 | int c; | |
1991 | ||
1992 | ILLEGAL_WITHIN_STRUCT (); | |
1993 | ||
d02603dc | 1994 | c = get_symbol_name (&name); |
39bec121 TW |
1995 | symbolP = colon (name); |
1996 | S_SET_STORAGE_CLASS (symbolP, C_STATLAB); | |
1997 | ||
d02603dc | 1998 | (void) restore_line_pointer (c); |
39bec121 TW |
1999 | demand_empty_rest_of_line (); |
2000 | } | |
2001 | ||
d0313fb7 | 2002 | /* .mmregs |
9a736b6b NC |
2003 | Install all memory-mapped register names into the symbol table as |
2004 | absolute local symbols. */ | |
2005 | ||
39bec121 | 2006 | static void |
5a49b8ac | 2007 | tic54x_mmregs (int ignored ATTRIBUTE_UNUSED) |
39bec121 | 2008 | { |
3d207518 | 2009 | tic54x_symbol *sym; |
39bec121 TW |
2010 | |
2011 | ILLEGAL_WITHIN_STRUCT (); | |
2012 | ||
3d207518 | 2013 | for (sym = (tic54x_symbol *) mmregs; sym->name; sym++) |
39bec121 TW |
2014 | { |
2015 | symbolS *symbolP = symbol_new (sym->name, absolute_section, | |
9a736b6b | 2016 | (valueT) sym->value, &zero_address_frag); |
39bec121 TW |
2017 | SF_SET_LOCAL (symbolP); |
2018 | symbol_table_insert (symbolP); | |
2019 | } | |
2020 | } | |
2021 | ||
d0313fb7 | 2022 | /* .loop [count] |
9a736b6b NC |
2023 | Count defaults to 1024. */ |
2024 | ||
39bec121 | 2025 | static void |
5a49b8ac | 2026 | tic54x_loop (int count) |
39bec121 TW |
2027 | { |
2028 | ILLEGAL_WITHIN_STRUCT (); | |
2029 | ||
2030 | SKIP_WHITESPACE (); | |
3076e594 | 2031 | if (!is_end_of_line[(unsigned char) *input_line_pointer]) |
9a736b6b | 2032 | count = get_absolute_expression (); |
39bec121 | 2033 | |
808811a3 | 2034 | do_repeat ((size_t) count, "LOOP", "ENDLOOP"); |
39bec121 TW |
2035 | } |
2036 | ||
d0313fb7 | 2037 | /* Normally, endloop gets eaten by the preceding loop. */ |
9a736b6b | 2038 | |
39bec121 | 2039 | static void |
5a49b8ac | 2040 | tic54x_endloop (int ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2041 | { |
2042 | as_bad (_("ENDLOOP without corresponding LOOP")); | |
2043 | ignore_rest_of_line (); | |
2044 | } | |
2045 | ||
d0313fb7 | 2046 | /* .break [condition]. */ |
9a736b6b | 2047 | |
39bec121 | 2048 | static void |
5a49b8ac | 2049 | tic54x_break (int ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2050 | { |
2051 | int cond = 1; | |
2052 | ||
2053 | ILLEGAL_WITHIN_STRUCT (); | |
2054 | ||
2055 | SKIP_WHITESPACE (); | |
3076e594 | 2056 | if (!is_end_of_line[(unsigned char) *input_line_pointer]) |
9a736b6b NC |
2057 | cond = get_absolute_expression (); |
2058 | ||
39bec121 | 2059 | if (cond) |
9a736b6b | 2060 | end_repeat (substitution_line ? 1 : 0); |
39bec121 TW |
2061 | } |
2062 | ||
2063 | static void | |
5a49b8ac | 2064 | set_address_mode (int mode) |
39bec121 TW |
2065 | { |
2066 | amode = mode; | |
2067 | if (mode == far_mode) | |
2068 | { | |
1aea3bb8 | 2069 | symbolS *symbolP = symbol_new ("__allow_far", absolute_section, |
9a736b6b | 2070 | (valueT) 1, &zero_address_frag); |
39bec121 TW |
2071 | SF_SET_LOCAL (symbolP); |
2072 | symbol_table_insert (symbolP); | |
2073 | } | |
2074 | } | |
2075 | ||
2076 | static int address_mode_needs_set = 1; | |
f1e7a2c9 | 2077 | |
39bec121 | 2078 | static void |
5a49b8ac | 2079 | tic54x_address_mode (int mode) |
39bec121 | 2080 | { |
1aea3bb8 | 2081 | if (assembly_begun && amode != (unsigned) mode) |
39bec121 TW |
2082 | { |
2083 | as_bad (_("Mixing of normal and extended addressing not supported")); | |
2084 | ignore_rest_of_line (); | |
2085 | return; | |
2086 | } | |
2087 | if (mode == far_mode && cpu != VNONE && cpu != V548 && cpu != V549) | |
2088 | { | |
2089 | as_bad (_("Extended addressing not supported on the specified CPU")); | |
2090 | ignore_rest_of_line (); | |
2091 | return; | |
2092 | } | |
2093 | ||
2094 | set_address_mode (mode); | |
2095 | demand_empty_rest_of_line (); | |
2096 | } | |
2097 | ||
2098 | /* .sblock "section"|section [,...,"section"|section] | |
9a736b6b NC |
2099 | Designate initialized sections for blocking. */ |
2100 | ||
39bec121 | 2101 | static void |
5a49b8ac | 2102 | tic54x_sblock (int ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2103 | { |
2104 | int c = ','; | |
2105 | ||
2106 | ILLEGAL_WITHIN_STRUCT (); | |
2107 | ||
2108 | while (c == ',') | |
2109 | { | |
2110 | segT seg; | |
2111 | char *name; | |
1aea3bb8 | 2112 | |
39bec121 | 2113 | if (*input_line_pointer == '"') |
9a736b6b NC |
2114 | { |
2115 | int len; | |
f1e7a2c9 | 2116 | |
9a736b6b NC |
2117 | name = demand_copy_C_string (&len); |
2118 | } | |
39bec121 | 2119 | else |
9a736b6b | 2120 | { |
d02603dc | 2121 | char *section_name; |
f1e7a2c9 | 2122 | |
d02603dc | 2123 | c = get_symbol_name (§ion_name); |
4ec9d7d5 | 2124 | name = xstrdup (section_name); |
d02603dc | 2125 | (void) restore_line_pointer (c); |
9a736b6b | 2126 | } |
39bec121 TW |
2127 | |
2128 | seg = bfd_get_section_by_name (stdoutput, name); | |
2129 | if (seg == NULL) | |
9a736b6b NC |
2130 | { |
2131 | as_bad (_("Unrecognized section '%s'"), name); | |
2132 | ignore_rest_of_line (); | |
2133 | return; | |
2134 | } | |
39bec121 | 2135 | else if (!tic54x_initialized_section (seg)) |
9a736b6b NC |
2136 | { |
2137 | as_bad (_(".sblock may be used for initialized sections only")); | |
2138 | ignore_rest_of_line (); | |
2139 | return; | |
2140 | } | |
ebe372c1 | 2141 | seg->flags |= SEC_TIC54X_BLOCK; |
39bec121 TW |
2142 | |
2143 | c = *input_line_pointer; | |
3076e594 | 2144 | if (!is_end_of_line[(unsigned char) c]) |
9a736b6b | 2145 | ++input_line_pointer; |
39bec121 TW |
2146 | } |
2147 | ||
2148 | demand_empty_rest_of_line (); | |
2149 | } | |
2150 | ||
2151 | /* symbol .set value | |
1aea3bb8 | 2152 | symbol .equ value |
39bec121 TW |
2153 | |
2154 | value must be defined externals; no forward-referencing allowed | |
d0313fb7 | 2155 | symbols assigned with .set/.equ may not be redefined. */ |
9a736b6b | 2156 | |
39bec121 | 2157 | static void |
5a49b8ac | 2158 | tic54x_set (int ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2159 | { |
2160 | symbolS *symbolP; | |
2161 | char *name; | |
2162 | ||
2163 | ILLEGAL_WITHIN_STRUCT (); | |
2164 | ||
2165 | if (!line_label) | |
2166 | { | |
2167 | as_bad (_("Symbol missing for .set/.equ")); | |
2168 | ignore_rest_of_line (); | |
2169 | return; | |
2170 | } | |
2171 | name = xstrdup (S_GET_NAME (line_label)); | |
2172 | line_label = NULL; | |
2173 | if ((symbolP = symbol_find (name)) == NULL | |
2174 | && (symbolP = md_undefined_symbol (name)) == NULL) | |
2175 | { | |
2176 | symbolP = symbol_new (name, absolute_section, 0, &zero_address_frag); | |
2177 | S_SET_STORAGE_CLASS (symbolP, C_STAT); | |
2178 | } | |
2179 | free (name); | |
2180 | S_SET_DATA_TYPE (symbolP, T_INT); | |
2181 | S_SET_SEGMENT (symbolP, absolute_section); | |
2182 | symbol_table_insert (symbolP); | |
2183 | pseudo_set (symbolP); | |
2184 | demand_empty_rest_of_line (); | |
2185 | } | |
2186 | ||
2187 | /* .fclist | |
2188 | .fcnolist | |
9a736b6b NC |
2189 | List false conditional blocks. */ |
2190 | ||
39bec121 | 2191 | static void |
5a49b8ac | 2192 | tic54x_fclist (int show) |
39bec121 TW |
2193 | { |
2194 | if (show) | |
2195 | listing &= ~LISTING_NOCOND; | |
2196 | else | |
2197 | listing |= LISTING_NOCOND; | |
2198 | demand_empty_rest_of_line (); | |
2199 | } | |
2200 | ||
2201 | static void | |
5a49b8ac | 2202 | tic54x_sslist (int show) |
39bec121 TW |
2203 | { |
2204 | ILLEGAL_WITHIN_STRUCT (); | |
2205 | ||
2206 | listing_sslist = show; | |
2207 | } | |
2208 | ||
1aea3bb8 | 2209 | /* .var SYM[,...,SYMN] |
9a736b6b NC |
2210 | Define a substitution string to be local to a macro. */ |
2211 | ||
39bec121 | 2212 | static void |
5a49b8ac | 2213 | tic54x_var (int ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2214 | { |
2215 | static char empty[] = ""; | |
2216 | char *name; | |
2217 | int c; | |
2218 | ||
2219 | ILLEGAL_WITHIN_STRUCT (); | |
2220 | ||
2221 | if (macro_level == 0) | |
2222 | { | |
2223 | as_bad (_(".var may only be used within a macro definition")); | |
2224 | ignore_rest_of_line (); | |
2225 | return; | |
2226 | } | |
1aea3bb8 | 2227 | do |
39bec121 | 2228 | { |
3882b010 | 2229 | if (!ISALPHA (*input_line_pointer)) |
9a736b6b NC |
2230 | { |
2231 | as_bad (_("Substitution symbols must begin with a letter")); | |
2232 | ignore_rest_of_line (); | |
2233 | return; | |
2234 | } | |
d02603dc | 2235 | c = get_symbol_name (&name); |
9a736b6b | 2236 | /* .var symbols start out with a null string. */ |
4ec9d7d5 | 2237 | name = xstrdup (name); |
39bec121 | 2238 | hash_insert (subsym_hash[macro_level], name, empty); |
d02603dc | 2239 | c = restore_line_pointer (c); |
39bec121 | 2240 | if (c == ',') |
9a736b6b NC |
2241 | { |
2242 | ++input_line_pointer; | |
3076e594 | 2243 | if (is_end_of_line[(unsigned char) *input_line_pointer]) |
9a736b6b NC |
2244 | c = *input_line_pointer; |
2245 | } | |
39bec121 TW |
2246 | } |
2247 | while (c == ','); | |
2248 | ||
2249 | demand_empty_rest_of_line (); | |
2250 | } | |
2251 | ||
1aea3bb8 | 2252 | /* .mlib <macro library filename> |
39bec121 TW |
2253 | |
2254 | Macro libraries are archived (standard AR-format) text macro definitions | |
2255 | Expand the file and include it. | |
2256 | ||
d0313fb7 | 2257 | FIXME need to try the source file directory as well. */ |
9a736b6b | 2258 | |
39bec121 | 2259 | static void |
5a49b8ac | 2260 | tic54x_mlib (int ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2261 | { |
2262 | char *filename; | |
2263 | char *path; | |
2264 | int len, i; | |
2265 | bfd *abfd, *mbfd; | |
2266 | ||
2267 | ILLEGAL_WITHIN_STRUCT (); | |
2268 | ||
9a736b6b | 2269 | /* Parse the filename. */ |
39bec121 TW |
2270 | if (*input_line_pointer == '"') |
2271 | { | |
2272 | if ((filename = demand_copy_C_string (&len)) == NULL) | |
9a736b6b | 2273 | return; |
39bec121 TW |
2274 | } |
2275 | else | |
2276 | { | |
2277 | SKIP_WHITESPACE (); | |
2278 | len = 0; | |
3076e594 | 2279 | while (!is_end_of_line[(unsigned char) *input_line_pointer] |
3882b010 | 2280 | && !ISSPACE (*input_line_pointer)) |
9a736b6b NC |
2281 | { |
2282 | obstack_1grow (¬es, *input_line_pointer); | |
2283 | ++input_line_pointer; | |
2284 | ++len; | |
2285 | } | |
39bec121 TW |
2286 | obstack_1grow (¬es, '\0'); |
2287 | filename = obstack_finish (¬es); | |
2288 | } | |
2289 | demand_empty_rest_of_line (); | |
2290 | ||
4b92e388 | 2291 | tic54x_set_default_include (); |
325801bd | 2292 | path = XNEWVEC (char, (unsigned long) len + include_dir_maxlen + 5); |
f1e7a2c9 | 2293 | |
1aea3bb8 | 2294 | for (i = 0; i < include_dir_count; i++) |
39bec121 TW |
2295 | { |
2296 | FILE *try; | |
f1e7a2c9 | 2297 | |
39bec121 TW |
2298 | strcpy (path, include_dirs[i]); |
2299 | strcat (path, "/"); | |
2300 | strcat (path, filename); | |
2301 | if ((try = fopen (path, "r")) != NULL) | |
9a736b6b NC |
2302 | { |
2303 | fclose (try); | |
2304 | break; | |
2305 | } | |
1aea3bb8 | 2306 | } |
f1e7a2c9 | 2307 | |
39bec121 TW |
2308 | if (i >= include_dir_count) |
2309 | { | |
2310 | free (path); | |
2311 | path = filename; | |
2312 | } | |
2313 | ||
2314 | /* FIXME: if path is found, malloc'd storage is not freed. Of course, this | |
2315 | happens all over the place, and since the assembler doesn't usually keep | |
9a736b6b | 2316 | running for a very long time, it really doesn't matter. */ |
39bec121 TW |
2317 | register_dependency (path); |
2318 | ||
d0313fb7 | 2319 | /* Expand all archive entries to temporary files and include them. */ |
39bec121 TW |
2320 | abfd = bfd_openr (path, NULL); |
2321 | if (!abfd) | |
2322 | { | |
885afe7b AM |
2323 | as_bad (_("can't open macro library file '%s' for reading: %s"), |
2324 | path, bfd_errmsg (bfd_get_error ())); | |
39bec121 TW |
2325 | ignore_rest_of_line (); |
2326 | return; | |
2327 | } | |
2328 | if (!bfd_check_format (abfd, bfd_archive)) | |
2329 | { | |
2330 | as_bad (_("File '%s' not in macro archive format"), path); | |
2331 | ignore_rest_of_line (); | |
2332 | return; | |
2333 | } | |
2334 | ||
d0313fb7 | 2335 | /* Open each BFD as binary (it should be straight ASCII text). */ |
39bec121 TW |
2336 | for (mbfd = bfd_openr_next_archived_file (abfd, NULL); |
2337 | mbfd != NULL; mbfd = bfd_openr_next_archived_file (abfd, mbfd)) | |
2338 | { | |
d0313fb7 | 2339 | /* Get a size at least as big as the archive member. */ |
39bec121 | 2340 | bfd_size_type size = bfd_get_size (mbfd); |
325801bd | 2341 | char *buf = XNEWVEC (char, size); |
39bec121 TW |
2342 | char *fname = tmpnam (NULL); |
2343 | FILE *ftmp; | |
2344 | ||
d0313fb7 | 2345 | /* We're not sure how big it is, but it will be smaller than "size". */ |
6e210b41 | 2346 | size = bfd_bread (buf, size, mbfd); |
39bec121 | 2347 | |
1aea3bb8 | 2348 | /* Write to a temporary file, then use s_include to include it |
9a736b6b | 2349 | a bit of a hack. */ |
39bec121 | 2350 | ftmp = fopen (fname, "w+b"); |
1aea3bb8 | 2351 | fwrite ((void *) buf, size, 1, ftmp); |
6e210b41 | 2352 | if (size == 0 || buf[size - 1] != '\n') |
9a736b6b | 2353 | fwrite ("\n", 1, 1, ftmp); |
39bec121 TW |
2354 | fclose (ftmp); |
2355 | free (buf); | |
2356 | input_scrub_insert_file (fname); | |
2357 | unlink (fname); | |
2358 | } | |
2359 | } | |
2360 | ||
1aea3bb8 | 2361 | const pseudo_typeS md_pseudo_table[] = |
39bec121 | 2362 | { |
9a736b6b NC |
2363 | { "algebraic", s_ignore , 0 }, |
2364 | { "align" , tic54x_align_words , 128 }, | |
6e917903 TW |
2365 | { "ascii" , tic54x_stringer , 'p' }, |
2366 | { "asciz" , tic54x_stringer , 'P' }, | |
9a736b6b NC |
2367 | { "even" , tic54x_align_words , 2 }, |
2368 | { "asg" , tic54x_asg , 0 }, | |
2369 | { "eval" , tic54x_eval , 0 }, | |
2370 | { "bss" , tic54x_bss , 0 }, | |
2371 | { "byte" , tic54x_cons , 'b' }, | |
2372 | { "ubyte" , tic54x_cons , 'B' }, | |
2373 | { "char" , tic54x_cons , 'c' }, | |
2374 | { "uchar" , tic54x_cons , 'C' }, | |
2375 | { "clink" , tic54x_clink , 0 }, | |
2376 | { "c_mode" , tic54x_address_mode , c_mode }, | |
2377 | { "copy" , tic54x_include , 'c' }, | |
2378 | { "include" , tic54x_include , 'i' }, | |
2379 | { "data" , tic54x_sect , 'd' }, | |
2380 | { "double" , tic54x_float_cons , 'd' }, | |
2381 | { "ldouble" , tic54x_float_cons , 'l' }, | |
2382 | { "drlist" , s_ignore , 0 }, | |
2383 | { "drnolist" , s_ignore , 0 }, | |
2384 | { "emsg" , tic54x_message , 'e' }, | |
2385 | { "mmsg" , tic54x_message , 'm' }, | |
2386 | { "wmsg" , tic54x_message , 'w' }, | |
9a736b6b NC |
2387 | { "far_mode" , tic54x_address_mode , far_mode }, |
2388 | { "fclist" , tic54x_fclist , 1 }, | |
2389 | { "fcnolist" , tic54x_fclist , 0 }, | |
2390 | { "field" , tic54x_field , -1 }, | |
2391 | { "float" , tic54x_float_cons , 'f' }, | |
2392 | { "xfloat" , tic54x_float_cons , 'x' }, | |
2393 | { "global" , tic54x_global , 'g' }, | |
2394 | { "def" , tic54x_global , 'd' }, | |
2395 | { "ref" , tic54x_global , 'r' }, | |
2396 | { "half" , tic54x_cons , 'h' }, | |
2397 | { "uhalf" , tic54x_cons , 'H' }, | |
2398 | { "short" , tic54x_cons , 's' }, | |
2399 | { "ushort" , tic54x_cons , 'S' }, | |
2400 | { "if" , s_if , (int) O_ne }, | |
2401 | { "elseif" , s_elseif , (int) O_ne }, | |
2402 | { "else" , s_else , 0 }, | |
2403 | { "endif" , s_endif , 0 }, | |
2404 | { "int" , tic54x_cons , 'i' }, | |
2405 | { "uint" , tic54x_cons , 'I' }, | |
2406 | { "word" , tic54x_cons , 'w' }, | |
2407 | { "uword" , tic54x_cons , 'W' }, | |
2408 | { "label" , tic54x_label , 0 }, /* Loadtime | |
2409 | address. */ | |
2410 | { "length" , s_ignore , 0 }, | |
2411 | { "width" , s_ignore , 0 }, | |
9a736b6b NC |
2412 | { "long" , tic54x_cons , 'l' }, |
2413 | { "ulong" , tic54x_cons , 'L' }, | |
2414 | { "xlong" , tic54x_cons , 'x' }, | |
2415 | { "loop" , tic54x_loop , 1024 }, | |
2416 | { "break" , tic54x_break , 0 }, | |
2417 | { "endloop" , tic54x_endloop , 0 }, | |
2418 | { "mlib" , tic54x_mlib , 0 }, | |
2419 | { "mlist" , s_ignore , 0 }, | |
2420 | { "mnolist" , s_ignore , 0 }, | |
2421 | { "mmregs" , tic54x_mmregs , 0 }, | |
2422 | { "newblock" , tic54x_clear_local_labels, 0 }, | |
2423 | { "option" , s_ignore , 0 }, | |
2424 | { "p2align" , tic54x_p2align , 0 }, | |
9a736b6b NC |
2425 | { "sblock" , tic54x_sblock , 0 }, |
2426 | { "sect" , tic54x_sect , '*' }, | |
2427 | { "set" , tic54x_set , 0 }, | |
2428 | { "equ" , tic54x_set , 0 }, | |
2429 | { "space" , tic54x_space , 0 }, | |
2430 | { "bes" , tic54x_space , 1 }, | |
2431 | { "sslist" , tic54x_sslist , 1 }, | |
2432 | { "ssnolist" , tic54x_sslist , 0 }, | |
2433 | { "string" , tic54x_stringer , 's' }, | |
2434 | { "pstring" , tic54x_stringer , 'p' }, | |
2435 | { "struct" , tic54x_struct , 0 }, | |
2436 | { "tag" , tic54x_tag , 0 }, | |
2437 | { "endstruct", tic54x_endstruct , 0 }, | |
2438 | { "tab" , s_ignore , 0 }, | |
2439 | { "text" , tic54x_sect , 't' }, | |
9a736b6b NC |
2440 | { "union" , tic54x_struct , 1 }, |
2441 | { "endunion" , tic54x_endstruct , 1 }, | |
2442 | { "usect" , tic54x_usect , 0 }, | |
2443 | { "var" , tic54x_var , 0 }, | |
2444 | { "version" , tic54x_version , 0 }, | |
2445 | {0 , 0 , 0 } | |
39bec121 TW |
2446 | }; |
2447 | ||
39bec121 | 2448 | int |
17b9d67d | 2449 | md_parse_option (int c, const char *arg) |
39bec121 TW |
2450 | { |
2451 | switch (c) | |
2452 | { | |
2453 | default: | |
2454 | return 0; | |
2455 | case OPTION_COFF_VERSION: | |
2456 | { | |
9a736b6b | 2457 | int version = atoi (arg); |
f1e7a2c9 | 2458 | |
9a736b6b NC |
2459 | if (version != 0 && version != 1 && version != 2) |
2460 | as_fatal (_("Bad COFF version '%s'"), arg); | |
2461 | /* FIXME -- not yet implemented. */ | |
2462 | break; | |
39bec121 TW |
2463 | } |
2464 | case OPTION_CPU_VERSION: | |
2465 | { | |
9a736b6b NC |
2466 | cpu = lookup_version (arg); |
2467 | cpu_needs_set = 1; | |
2468 | if (cpu == VNONE) | |
2469 | as_fatal (_("Bad CPU version '%s'"), arg); | |
2470 | break; | |
39bec121 TW |
2471 | } |
2472 | case OPTION_ADDRESS_MODE: | |
2473 | amode = far_mode; | |
2474 | address_mode_needs_set = 1; | |
2475 | break; | |
2476 | case OPTION_STDERR_TO_FILE: | |
2477 | { | |
17b9d67d | 2478 | const char *filename = arg; |
9a736b6b | 2479 | FILE *fp = fopen (filename, "w+"); |
f1e7a2c9 | 2480 | |
9a736b6b NC |
2481 | if (fp == NULL) |
2482 | as_fatal (_("Can't redirect stderr to the file '%s'"), filename); | |
2483 | fclose (fp); | |
2484 | if ((fp = freopen (filename, "w+", stderr)) == NULL) | |
2485 | as_fatal (_("Can't redirect stderr to the file '%s'"), filename); | |
2486 | break; | |
39bec121 TW |
2487 | } |
2488 | } | |
2489 | ||
2490 | return 1; | |
2491 | } | |
2492 | ||
1aea3bb8 | 2493 | /* Create a "local" substitution string hash table for a new macro level |
39bec121 TW |
2494 | Some docs imply that macros have to use .newblock in order to be able |
2495 | to re-use a local label. We effectively do an automatic .newblock by | |
d0313fb7 | 2496 | deleting the local label hash between macro invocations. */ |
9a736b6b | 2497 | |
1aea3bb8 | 2498 | void |
5a49b8ac | 2499 | tic54x_macro_start (void) |
39bec121 | 2500 | { |
3076e594 NC |
2501 | if (++macro_level >= MAX_SUBSYM_HASH) |
2502 | { | |
2503 | as_fatal (_("Macro nesting is too deep")); | |
2504 | return; | |
2505 | } | |
39bec121 TW |
2506 | subsym_hash[macro_level] = hash_new (); |
2507 | local_label_hash[macro_level] = hash_new (); | |
2508 | } | |
2509 | ||
2510 | void | |
5a49b8ac | 2511 | tic54x_macro_info (const macro_entry *macro) |
39bec121 | 2512 | { |
4962e196 | 2513 | const formal_entry *entry; |
39bec121 | 2514 | |
d0313fb7 | 2515 | /* Put the formal args into the substitution symbol table. */ |
39bec121 TW |
2516 | for (entry = macro->formals; entry; entry = entry->next) |
2517 | { | |
29a2809e TS |
2518 | char *name = xstrndup (entry->name.ptr, entry->name.len); |
2519 | char *value = xstrndup (entry->actual.ptr, entry->actual.len); | |
f1e7a2c9 | 2520 | |
39bec121 TW |
2521 | name[entry->name.len] = '\0'; |
2522 | value[entry->actual.len] = '\0'; | |
2523 | hash_insert (subsym_hash[macro_level], name, value); | |
2524 | } | |
2525 | } | |
2526 | ||
d0313fb7 | 2527 | /* Get rid of this macro's .var's, arguments, and local labels. */ |
9a736b6b | 2528 | |
39bec121 | 2529 | void |
5a49b8ac | 2530 | tic54x_macro_end (void) |
39bec121 TW |
2531 | { |
2532 | hash_die (subsym_hash[macro_level]); | |
2533 | subsym_hash[macro_level] = NULL; | |
2534 | hash_die (local_label_hash[macro_level]); | |
2535 | local_label_hash[macro_level] = NULL; | |
2536 | --macro_level; | |
2537 | } | |
2538 | ||
2539 | static int | |
5a49b8ac | 2540 | subsym_symlen (char *a, char *ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2541 | { |
2542 | return strlen (a); | |
2543 | } | |
2544 | ||
d0313fb7 | 2545 | /* Compare symbol A to string B. */ |
9a736b6b | 2546 | |
39bec121 | 2547 | static int |
5a49b8ac | 2548 | subsym_symcmp (char *a, char *b) |
39bec121 TW |
2549 | { |
2550 | return strcmp (a, b); | |
2551 | } | |
2552 | ||
33b7f697 | 2553 | /* Return the index of the first occurrence of B in A, or zero if none |
d0313fb7 | 2554 | assumes b is an integer char value as a string. Index is one-based. */ |
9a736b6b | 2555 | |
39bec121 | 2556 | static int |
5a49b8ac | 2557 | subsym_firstch (char *a, char *b) |
39bec121 TW |
2558 | { |
2559 | int val = atoi (b); | |
2560 | char *tmp = strchr (a, val); | |
1aea3bb8 | 2561 | |
39bec121 TW |
2562 | return tmp ? tmp - a + 1 : 0; |
2563 | } | |
2564 | ||
d0313fb7 | 2565 | /* Similar to firstch, but returns index of last occurrence of B in A. */ |
9a736b6b | 2566 | |
39bec121 | 2567 | static int |
5a49b8ac | 2568 | subsym_lastch (char *a, char *b) |
39bec121 TW |
2569 | { |
2570 | int val = atoi (b); | |
2571 | char *tmp = strrchr (a, val); | |
2572 | ||
2573 | return tmp ? tmp - a + 1 : 0; | |
2574 | } | |
2575 | ||
d0313fb7 | 2576 | /* Returns 1 if string A is defined in the symbol table (NOT the substitution |
9a736b6b NC |
2577 | symbol table). */ |
2578 | ||
39bec121 | 2579 | static int |
5a49b8ac | 2580 | subsym_isdefed (char *a, char *ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2581 | { |
2582 | symbolS *symbolP = symbol_find (a); | |
2583 | ||
2584 | return symbolP != NULL; | |
2585 | } | |
2586 | ||
d0313fb7 | 2587 | /* Assign first member of comma-separated list B (e.g. "1,2,3") to the symbol |
39bec121 | 2588 | A, or zero if B is a null string. Both arguments *must* be substitution |
d0313fb7 | 2589 | symbols, unsubstituted. */ |
9a736b6b | 2590 | |
39bec121 | 2591 | static int |
5a49b8ac | 2592 | subsym_ismember (char *sym, char *list) |
39bec121 TW |
2593 | { |
2594 | char *elem, *ptr, *listv; | |
2595 | ||
2596 | if (!list) | |
2597 | return 0; | |
2598 | ||
2599 | listv = subsym_lookup (list, macro_level); | |
2600 | if (!listv) | |
2601 | { | |
2602 | as_bad (_("Undefined substitution symbol '%s'"), list); | |
2603 | ignore_rest_of_line (); | |
2604 | return 0; | |
2605 | } | |
2606 | ||
4ec9d7d5 | 2607 | ptr = elem = xstrdup (listv); |
39bec121 TW |
2608 | while (*ptr && *ptr != ',') |
2609 | ++ptr; | |
2610 | *ptr++ = 0; | |
2611 | ||
d0313fb7 | 2612 | subsym_create_or_replace (sym, elem); |
39bec121 | 2613 | |
d0313fb7 | 2614 | /* Reassign the list. */ |
39bec121 | 2615 | subsym_create_or_replace (list, ptr); |
1aea3bb8 | 2616 | |
d0313fb7 | 2617 | /* Assume this value, docs aren't clear. */ |
39bec121 TW |
2618 | return *list != 0; |
2619 | } | |
2620 | ||
d0313fb7 | 2621 | /* Return zero if not a constant; otherwise: |
39bec121 TW |
2622 | 1 if binary |
2623 | 2 if octal | |
2624 | 3 if hexadecimal | |
2625 | 4 if character | |
d0313fb7 | 2626 | 5 if decimal. */ |
9a736b6b | 2627 | |
39bec121 | 2628 | static int |
5a49b8ac | 2629 | subsym_iscons (char *a, char *ignore ATTRIBUTE_UNUSED) |
39bec121 | 2630 | { |
91d6fa6a | 2631 | expressionS expn; |
39bec121 | 2632 | |
91d6fa6a | 2633 | parse_expression (a, &expn); |
39bec121 | 2634 | |
91d6fa6a | 2635 | if (expn.X_op == O_constant) |
39bec121 TW |
2636 | { |
2637 | int len = strlen (a); | |
2638 | ||
3882b010 | 2639 | switch (TOUPPER (a[len - 1])) |
9a736b6b NC |
2640 | { |
2641 | case 'B': | |
2642 | return 1; | |
2643 | case 'Q': | |
2644 | return 2; | |
2645 | case 'H': | |
2646 | return 3; | |
2647 | case '\'': | |
2648 | return 4; | |
2649 | default: | |
2650 | break; | |
2651 | } | |
d0313fb7 | 2652 | /* No suffix; either octal, hex, or decimal. */ |
39bec121 | 2653 | if (*a == '0' && len > 1) |
9a736b6b | 2654 | { |
3882b010 | 2655 | if (TOUPPER (a[1]) == 'X') |
9a736b6b NC |
2656 | return 3; |
2657 | return 2; | |
2658 | } | |
39bec121 TW |
2659 | return 5; |
2660 | } | |
2661 | ||
2662 | return 0; | |
2663 | } | |
2664 | ||
d0313fb7 | 2665 | /* Return 1 if A is a valid symbol name. Expects string input. */ |
9a736b6b | 2666 | |
39bec121 | 2667 | static int |
5a49b8ac | 2668 | subsym_isname (char *a, char *ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2669 | { |
2670 | if (!is_name_beginner (*a)) | |
2671 | return 0; | |
2672 | while (*a) | |
2673 | { | |
2674 | if (!is_part_of_name (*a)) | |
9a736b6b | 2675 | return 0; |
39bec121 TW |
2676 | ++a; |
2677 | } | |
2678 | return 1; | |
2679 | } | |
2680 | ||
d0313fb7 | 2681 | /* Return whether the string is a register; accepts ar0-7, unless .mmregs has |
39bec121 | 2682 | been seen; if so, recognize any memory-mapped register. |
d0313fb7 | 2683 | Note this does not recognize "A" or "B" accumulators. */ |
9a736b6b | 2684 | |
39bec121 | 2685 | static int |
5a49b8ac | 2686 | subsym_isreg (char *a, char *ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2687 | { |
2688 | if (hash_find (reg_hash, a)) | |
2689 | return 1; | |
2690 | if (hash_find (mmreg_hash, a)) | |
2691 | return 1; | |
2692 | return 0; | |
2693 | } | |
2694 | ||
33b7f697 | 2695 | /* Return the structure size, given the stag. */ |
9a736b6b | 2696 | |
39bec121 | 2697 | static int |
5a49b8ac | 2698 | subsym_structsz (char *name, char *ignore ATTRIBUTE_UNUSED) |
39bec121 | 2699 | { |
1aea3bb8 | 2700 | struct stag *stag = (struct stag *) hash_find (stag_hash, name); |
f1e7a2c9 | 2701 | |
39bec121 TW |
2702 | if (stag) |
2703 | return stag->size; | |
2704 | ||
2705 | return 0; | |
2706 | } | |
2707 | ||
2708 | /* If anybody actually uses this, they can fix it :) | |
2709 | FIXME I'm not sure what the "reference point" of a structure is. It might | |
2710 | be either the initial offset given .struct, or it may be the offset of the | |
2711 | structure within another structure, or it might be something else | |
2712 | altogether. since the TI assembler doesn't seem to ever do anything but | |
d0313fb7 | 2713 | return zero, we punt and return zero. */ |
9a736b6b | 2714 | |
39bec121 | 2715 | static int |
5a49b8ac AM |
2716 | subsym_structacc (char *stag_name ATTRIBUTE_UNUSED, |
2717 | char *ignore ATTRIBUTE_UNUSED) | |
39bec121 TW |
2718 | { |
2719 | return 0; | |
2720 | } | |
2721 | ||
2722 | static float | |
5a49b8ac | 2723 | math_ceil (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2724 | { |
1aea3bb8 | 2725 | return (float) ceil (arg1); |
39bec121 | 2726 | } |
d0313fb7 | 2727 | |
39bec121 | 2728 | static float |
5a49b8ac | 2729 | math_cvi (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2730 | { |
1aea3bb8 | 2731 | return (int) arg1; |
39bec121 | 2732 | } |
d0313fb7 | 2733 | |
39bec121 | 2734 | static float |
5a49b8ac | 2735 | math_floor (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2736 | { |
1aea3bb8 | 2737 | return (float) floor (arg1); |
39bec121 | 2738 | } |
d0313fb7 | 2739 | |
39bec121 | 2740 | static float |
5a49b8ac | 2741 | math_fmod (float arg1, float arg2) |
39bec121 | 2742 | { |
1aea3bb8 | 2743 | return (int) arg1 % (int) arg2; |
39bec121 | 2744 | } |
d0313fb7 | 2745 | |
39bec121 | 2746 | static float |
5a49b8ac | 2747 | math_int (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2748 | { |
1aea3bb8 | 2749 | return ((float) ((int) arg1)) == arg1; |
39bec121 | 2750 | } |
d0313fb7 | 2751 | |
39bec121 | 2752 | static float |
5a49b8ac | 2753 | math_round (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2754 | { |
1aea3bb8 | 2755 | return arg1 > 0 ? (int) (arg1 + 0.5) : (int) (arg1 - 0.5); |
39bec121 | 2756 | } |
d0313fb7 | 2757 | |
39bec121 | 2758 | static float |
5a49b8ac | 2759 | math_sgn (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 TW |
2760 | { |
2761 | return (arg1 < 0) ? -1 : (arg1 ? 1 : 0); | |
2762 | } | |
d0313fb7 | 2763 | |
39bec121 | 2764 | static float |
5a49b8ac | 2765 | math_trunc (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2766 | { |
1aea3bb8 | 2767 | return (int) arg1; |
39bec121 TW |
2768 | } |
2769 | ||
2770 | static float | |
5a49b8ac | 2771 | math_acos (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2772 | { |
1aea3bb8 | 2773 | return (float) acos (arg1); |
39bec121 | 2774 | } |
d0313fb7 | 2775 | |
39bec121 | 2776 | static float |
5a49b8ac | 2777 | math_asin (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2778 | { |
1aea3bb8 | 2779 | return (float) asin (arg1); |
39bec121 | 2780 | } |
d0313fb7 | 2781 | |
39bec121 | 2782 | static float |
5a49b8ac | 2783 | math_atan (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2784 | { |
1aea3bb8 | 2785 | return (float) atan (arg1); |
39bec121 | 2786 | } |
d0313fb7 | 2787 | |
39bec121 | 2788 | static float |
5a49b8ac | 2789 | math_atan2 (float arg1, float arg2) |
39bec121 | 2790 | { |
1aea3bb8 | 2791 | return (float) atan2 (arg1, arg2); |
39bec121 | 2792 | } |
d0313fb7 | 2793 | |
39bec121 | 2794 | static float |
5a49b8ac | 2795 | math_cosh (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2796 | { |
1aea3bb8 | 2797 | return (float) cosh (arg1); |
39bec121 | 2798 | } |
d0313fb7 | 2799 | |
39bec121 | 2800 | static float |
5a49b8ac | 2801 | math_cos (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2802 | { |
1aea3bb8 | 2803 | return (float) cos (arg1); |
39bec121 | 2804 | } |
d0313fb7 | 2805 | |
39bec121 | 2806 | static float |
5a49b8ac | 2807 | math_cvf (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2808 | { |
1aea3bb8 | 2809 | return (float) arg1; |
39bec121 | 2810 | } |
d0313fb7 | 2811 | |
39bec121 | 2812 | static float |
5a49b8ac | 2813 | math_exp (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2814 | { |
1aea3bb8 | 2815 | return (float) exp (arg1); |
39bec121 | 2816 | } |
d0313fb7 | 2817 | |
39bec121 | 2818 | static float |
5a49b8ac | 2819 | math_fabs (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2820 | { |
1aea3bb8 | 2821 | return (float) fabs (arg1); |
39bec121 | 2822 | } |
d0313fb7 NC |
2823 | |
2824 | /* expr1 * 2^expr2. */ | |
9a736b6b | 2825 | |
39bec121 | 2826 | static float |
5a49b8ac | 2827 | math_ldexp (float arg1, float arg2) |
39bec121 | 2828 | { |
1aea3bb8 | 2829 | return arg1 * (float) pow (2.0, arg2); |
39bec121 | 2830 | } |
d0313fb7 | 2831 | |
39bec121 | 2832 | static float |
5a49b8ac | 2833 | math_log10 (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2834 | { |
1aea3bb8 | 2835 | return (float) log10 (arg1); |
39bec121 | 2836 | } |
d0313fb7 | 2837 | |
39bec121 | 2838 | static float |
5a49b8ac | 2839 | math_log (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2840 | { |
1aea3bb8 | 2841 | return (float) log (arg1); |
39bec121 | 2842 | } |
d0313fb7 | 2843 | |
39bec121 | 2844 | static float |
5a49b8ac | 2845 | math_max (float arg1, float arg2) |
39bec121 TW |
2846 | { |
2847 | return (arg1 > arg2) ? arg1 : arg2; | |
2848 | } | |
d0313fb7 | 2849 | |
39bec121 | 2850 | static float |
5a49b8ac | 2851 | math_min (float arg1, float arg2) |
39bec121 TW |
2852 | { |
2853 | return (arg1 < arg2) ? arg1 : arg2; | |
2854 | } | |
d0313fb7 | 2855 | |
39bec121 | 2856 | static float |
5a49b8ac | 2857 | math_pow (float arg1, float arg2) |
39bec121 | 2858 | { |
1aea3bb8 | 2859 | return (float) pow (arg1, arg2); |
39bec121 | 2860 | } |
d0313fb7 | 2861 | |
39bec121 | 2862 | static float |
5a49b8ac | 2863 | math_sin (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2864 | { |
1aea3bb8 | 2865 | return (float) sin (arg1); |
39bec121 | 2866 | } |
d0313fb7 | 2867 | |
39bec121 | 2868 | static float |
5a49b8ac | 2869 | math_sinh (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2870 | { |
1aea3bb8 | 2871 | return (float) sinh (arg1); |
39bec121 | 2872 | } |
d0313fb7 | 2873 | |
39bec121 | 2874 | static float |
5a49b8ac | 2875 | math_sqrt (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2876 | { |
1aea3bb8 | 2877 | return (float) sqrt (arg1); |
39bec121 | 2878 | } |
d0313fb7 | 2879 | |
39bec121 | 2880 | static float |
5a49b8ac | 2881 | math_tan (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2882 | { |
1aea3bb8 | 2883 | return (float) tan (arg1); |
39bec121 | 2884 | } |
d0313fb7 | 2885 | |
39bec121 | 2886 | static float |
5a49b8ac | 2887 | math_tanh (float arg1, float ignore ATTRIBUTE_UNUSED) |
39bec121 | 2888 | { |
1aea3bb8 | 2889 | return (float) tanh (arg1); |
39bec121 TW |
2890 | } |
2891 | ||
d0313fb7 | 2892 | /* Built-in substitution symbol functions and math functions. */ |
1aea3bb8 | 2893 | typedef struct |
39bec121 | 2894 | { |
b9bb4a93 | 2895 | const char *name; |
5a49b8ac | 2896 | int (*proc) (char *, char *); |
39bec121 TW |
2897 | int nargs; |
2898 | } subsym_proc_entry; | |
2899 | ||
d0313fb7 NC |
2900 | static const subsym_proc_entry subsym_procs[] = |
2901 | { | |
2902 | /* Assembler built-in string substitution functions. */ | |
39bec121 TW |
2903 | { "$symlen", subsym_symlen, 1, }, |
2904 | { "$symcmp", subsym_symcmp, 2, }, | |
2905 | { "$firstch", subsym_firstch, 2, }, | |
2906 | { "$lastch", subsym_lastch, 2, }, | |
2907 | { "$isdefed", subsym_isdefed, 1, }, | |
2908 | { "$ismember", subsym_ismember, 2, }, | |
2909 | { "$iscons", subsym_iscons, 1, }, | |
2910 | { "$isname", subsym_isname, 1, }, | |
2911 | { "$isreg", subsym_isreg, 1, }, | |
2912 | { "$structsz", subsym_structsz, 1, }, | |
2913 | { "$structacc", subsym_structacc, 1, }, | |
2914 | { NULL, NULL, 0 }, | |
2915 | }; | |
2916 | ||
2917 | typedef struct | |
2918 | { | |
b9bb4a93 | 2919 | const char *name; |
5a49b8ac | 2920 | float (*proc) (float, float); |
39bec121 TW |
2921 | int nargs; |
2922 | int int_return; | |
2923 | } math_proc_entry; | |
2924 | ||
d0313fb7 NC |
2925 | static const math_proc_entry math_procs[] = |
2926 | { | |
2927 | /* Integer-returning built-in math functions. */ | |
39bec121 TW |
2928 | { "$cvi", math_cvi, 1, 1 }, |
2929 | { "$int", math_int, 1, 1 }, | |
2930 | { "$sgn", math_sgn, 1, 1 }, | |
2931 | ||
d0313fb7 | 2932 | /* Float-returning built-in math functions. */ |
39bec121 TW |
2933 | { "$acos", math_acos, 1, 0 }, |
2934 | { "$asin", math_asin, 1, 0 }, | |
2935 | { "$atan", math_atan, 1, 0 }, | |
1aea3bb8 | 2936 | { "$atan2", math_atan2, 2, 0 }, |
39bec121 TW |
2937 | { "$ceil", math_ceil, 1, 0 }, |
2938 | { "$cosh", math_cosh, 1, 0 }, | |
2939 | { "$cos", math_cos, 1, 0 }, | |
2940 | { "$cvf", math_cvf, 1, 0 }, | |
2941 | { "$exp", math_exp, 1, 0 }, | |
2942 | { "$fabs", math_fabs, 1, 0 }, | |
2943 | { "$floor", math_floor, 1, 0 }, | |
2944 | { "$fmod", math_fmod, 2, 0 }, | |
2945 | { "$ldexp", math_ldexp, 2, 0 }, | |
2946 | { "$log10", math_log10, 1, 0 }, | |
2947 | { "$log", math_log, 1, 0 }, | |
2948 | { "$max", math_max, 2, 0 }, | |
2949 | { "$min", math_min, 2, 0 }, | |
2950 | { "$pow", math_pow, 2, 0 }, | |
2951 | { "$round", math_round, 1, 0 }, | |
2952 | { "$sin", math_sin, 1, 0 }, | |
2953 | { "$sinh", math_sinh, 1, 0 }, | |
2954 | { "$sqrt", math_sqrt, 1, 0 }, | |
2955 | { "$tan", math_tan, 1, 0 }, | |
2956 | { "$tanh", math_tanh, 1, 0 }, | |
2957 | { "$trunc", math_trunc, 1, 0 }, | |
2958 | { NULL, NULL, 0, 0 }, | |
2959 | }; | |
2960 | ||
2961 | void | |
5a49b8ac | 2962 | md_begin (void) |
39bec121 | 2963 | { |
d3ce72d0 | 2964 | insn_template *tm; |
3d207518 | 2965 | tic54x_symbol *sym; |
39bec121 TW |
2966 | const subsym_proc_entry *subsym_proc; |
2967 | const math_proc_entry *math_proc; | |
2968 | const char *hash_err; | |
2969 | char **symname; | |
2970 | char *TIC54X_DIR = getenv ("TIC54X_DIR"); | |
2971 | char *A_DIR = TIC54X_DIR ? TIC54X_DIR : getenv ("A_DIR"); | |
2972 | ||
2973 | local_label_id = 0; | |
2974 | ||
f1e7a2c9 | 2975 | /* Look for A_DIR and add it to the include list. */ |
39bec121 TW |
2976 | if (A_DIR != NULL) |
2977 | { | |
2978 | char *tmp = xstrdup (A_DIR); | |
f1e7a2c9 | 2979 | |
1aea3bb8 NC |
2980 | do |
2981 | { | |
2982 | char *next = strchr (tmp, ';'); | |
f1e7a2c9 | 2983 | |
1aea3bb8 NC |
2984 | if (next) |
2985 | *next++ = '\0'; | |
2986 | add_include_dir (tmp); | |
2987 | tmp = next; | |
2988 | } | |
2989 | while (tmp != NULL); | |
39bec121 TW |
2990 | } |
2991 | ||
2992 | op_hash = hash_new (); | |
d3ce72d0 | 2993 | for (tm = (insn_template *) tic54x_optab; tm->name; tm++) |
39bec121 | 2994 | { |
6e917903 | 2995 | if (hash_find (op_hash, tm->name)) |
9a736b6b | 2996 | continue; |
6e917903 | 2997 | hash_err = hash_insert (op_hash, tm->name, (char *) tm); |
39bec121 | 2998 | if (hash_err) |
9a736b6b | 2999 | as_fatal ("Internal Error: Can't hash %s: %s", |
6e917903 | 3000 | tm->name, hash_err); |
39bec121 TW |
3001 | } |
3002 | parop_hash = hash_new (); | |
d3ce72d0 | 3003 | for (tm = (insn_template *) tic54x_paroptab; tm->name; tm++) |
39bec121 | 3004 | { |
6e917903 | 3005 | if (hash_find (parop_hash, tm->name)) |
9a736b6b | 3006 | continue; |
6e917903 | 3007 | hash_err = hash_insert (parop_hash, tm->name, (char *) tm); |
39bec121 | 3008 | if (hash_err) |
9a736b6b | 3009 | as_fatal ("Internal Error: Can't hash %s: %s", |
6e917903 | 3010 | tm->name, hash_err); |
39bec121 TW |
3011 | } |
3012 | reg_hash = hash_new (); | |
3d207518 | 3013 | for (sym = (tic54x_symbol *) regs; sym->name; sym++) |
39bec121 | 3014 | { |
d0313fb7 | 3015 | /* Add basic registers to the symbol table. */ |
39bec121 | 3016 | symbolS *symbolP = symbol_new (sym->name, absolute_section, |
9a736b6b | 3017 | (valueT) sym->value, &zero_address_frag); |
39bec121 TW |
3018 | SF_SET_LOCAL (symbolP); |
3019 | symbol_table_insert (symbolP); | |
1aea3bb8 | 3020 | hash_err = hash_insert (reg_hash, sym->name, (char *) sym); |
39bec121 | 3021 | } |
3d207518 | 3022 | for (sym = (tic54x_symbol *) mmregs; sym->name; sym++) |
1aea3bb8 | 3023 | hash_err = hash_insert (reg_hash, sym->name, (char *) sym); |
39bec121 | 3024 | mmreg_hash = hash_new (); |
3d207518 | 3025 | for (sym = (tic54x_symbol *) mmregs; sym->name; sym++) |
f1e7a2c9 NC |
3026 | hash_err = hash_insert (mmreg_hash, sym->name, (char *) sym); |
3027 | ||
39bec121 | 3028 | cc_hash = hash_new (); |
3d207518 | 3029 | for (sym = (tic54x_symbol *) condition_codes; sym->name; sym++) |
f1e7a2c9 NC |
3030 | hash_err = hash_insert (cc_hash, sym->name, (char *) sym); |
3031 | ||
39bec121 | 3032 | cc2_hash = hash_new (); |
3d207518 | 3033 | for (sym = (tic54x_symbol *) cc2_codes; sym->name; sym++) |
f1e7a2c9 NC |
3034 | hash_err = hash_insert (cc2_hash, sym->name, (char *) sym); |
3035 | ||
39bec121 | 3036 | cc3_hash = hash_new (); |
3d207518 | 3037 | for (sym = (tic54x_symbol *) cc3_codes; sym->name; sym++) |
f1e7a2c9 NC |
3038 | hash_err = hash_insert (cc3_hash, sym->name, (char *) sym); |
3039 | ||
39bec121 | 3040 | sbit_hash = hash_new (); |
3d207518 | 3041 | for (sym = (tic54x_symbol *) status_bits; sym->name; sym++) |
f1e7a2c9 NC |
3042 | hash_err = hash_insert (sbit_hash, sym->name, (char *) sym); |
3043 | ||
39bec121 | 3044 | misc_symbol_hash = hash_new (); |
1aea3bb8 | 3045 | for (symname = (char **) misc_symbols; *symname; symname++) |
f1e7a2c9 NC |
3046 | hash_err = hash_insert (misc_symbol_hash, *symname, *symname); |
3047 | ||
d0313fb7 NC |
3048 | /* Only the base substitution table and local label table are initialized; |
3049 | the others (for local macro substitution) get instantiated as needed. */ | |
39bec121 TW |
3050 | local_label_hash[0] = hash_new (); |
3051 | subsym_hash[0] = hash_new (); | |
3052 | for (subsym_proc = subsym_procs; subsym_proc->name; subsym_proc++) | |
f1e7a2c9 NC |
3053 | hash_err = hash_insert (subsym_hash[0], subsym_proc->name, |
3054 | (char *) subsym_proc); | |
3055 | ||
39bec121 TW |
3056 | math_hash = hash_new (); |
3057 | for (math_proc = math_procs; math_proc->name; math_proc++) | |
3058 | { | |
d0313fb7 | 3059 | /* Insert into the main subsym hash for recognition; insert into |
9a736b6b | 3060 | the math hash to actually store information. */ |
39bec121 | 3061 | hash_err = hash_insert (subsym_hash[0], math_proc->name, |
9a736b6b | 3062 | (char *) math_proc); |
39bec121 | 3063 | hash_err = hash_insert (math_hash, math_proc->name, |
9a736b6b | 3064 | (char *) math_proc); |
39bec121 TW |
3065 | } |
3066 | subsym_recurse_hash = hash_new (); | |
3067 | stag_hash = hash_new (); | |
3068 | } | |
3069 | ||
39bec121 | 3070 | static int |
5a49b8ac | 3071 | is_accumulator (struct opstruct *operand) |
39bec121 | 3072 | { |
1aea3bb8 | 3073 | return strcasecmp (operand->buf, "a") == 0 |
39bec121 TW |
3074 | || strcasecmp (operand->buf, "b") == 0; |
3075 | } | |
3076 | ||
9a736b6b NC |
3077 | /* Return the number of operands found, or -1 on error, copying the |
3078 | operands into the given array and the accompanying expressions into | |
3079 | the next array. */ | |
3080 | ||
39bec121 | 3081 | static int |
5a49b8ac | 3082 | get_operands (struct opstruct operands[], char *line) |
39bec121 TW |
3083 | { |
3084 | char *lptr = line; | |
3085 | int numexp = 0; | |
3086 | int expecting_operand = 0; | |
3087 | int i; | |
3088 | ||
3076e594 | 3089 | while (numexp < MAX_OPERANDS && !is_end_of_line[(unsigned char) *lptr]) |
39bec121 TW |
3090 | { |
3091 | int paren_not_balanced = 0; | |
3092 | char *op_start, *op_end; | |
f1e7a2c9 | 3093 | |
3882b010 | 3094 | while (*lptr && ISSPACE (*lptr)) |
9a736b6b | 3095 | ++lptr; |
39bec121 TW |
3096 | op_start = lptr; |
3097 | while (paren_not_balanced || *lptr != ',') | |
9a736b6b NC |
3098 | { |
3099 | if (*lptr == '\0') | |
3100 | { | |
3101 | if (paren_not_balanced) | |
3102 | { | |
20203fb9 | 3103 | as_bad (_("Unbalanced parenthesis in operand %d"), numexp); |
9a736b6b NC |
3104 | return -1; |
3105 | } | |
3106 | else | |
3107 | break; | |
3108 | } | |
3109 | if (*lptr == '(') | |
3110 | ++paren_not_balanced; | |
3111 | else if (*lptr == ')') | |
3112 | --paren_not_balanced; | |
3113 | ++lptr; | |
3114 | } | |
39bec121 TW |
3115 | op_end = lptr; |
3116 | if (op_end != op_start) | |
9a736b6b NC |
3117 | { |
3118 | int len = op_end - op_start; | |
f1e7a2c9 | 3119 | |
9a736b6b NC |
3120 | strncpy (operands[numexp].buf, op_start, len); |
3121 | operands[numexp].buf[len] = 0; | |
3122 | /* Trim trailing spaces; while the preprocessor gets rid of most, | |
3123 | there are weird usage patterns that can introduce them | |
3124 | (i.e. using strings for macro args). */ | |
3882b010 | 3125 | while (len > 0 && ISSPACE (operands[numexp].buf[len - 1])) |
9a736b6b NC |
3126 | operands[numexp].buf[--len] = 0; |
3127 | lptr = op_end; | |
3128 | ++numexp; | |
3129 | } | |
1aea3bb8 | 3130 | else |
9a736b6b NC |
3131 | { |
3132 | if (expecting_operand || *lptr == ',') | |
3133 | { | |
20203fb9 | 3134 | as_bad (_("Expecting operand after ','")); |
9a736b6b NC |
3135 | return -1; |
3136 | } | |
3137 | } | |
39bec121 | 3138 | if (*lptr == ',') |
9a736b6b NC |
3139 | { |
3140 | if (*++lptr == '\0') | |
3141 | { | |
20203fb9 | 3142 | as_bad (_("Expecting operand after ','")); |
9a736b6b NC |
3143 | return -1; |
3144 | } | |
3145 | expecting_operand = 1; | |
3146 | } | |
39bec121 TW |
3147 | } |
3148 | ||
3882b010 | 3149 | while (*lptr && ISSPACE (*lptr++)) |
39bec121 | 3150 | ; |
3076e594 | 3151 | if (!is_end_of_line[(unsigned char) *lptr]) |
39bec121 | 3152 | { |
20203fb9 | 3153 | as_bad (_("Extra junk on line")); |
39bec121 TW |
3154 | return -1; |
3155 | } | |
3156 | ||
d0313fb7 | 3157 | /* OK, now parse them into expressions. */ |
1aea3bb8 | 3158 | for (i = 0; i < numexp; i++) |
39bec121 TW |
3159 | { |
3160 | memset (&operands[i].exp, 0, sizeof (operands[i].exp)); | |
3161 | if (operands[i].buf[0] == '#') | |
9a736b6b NC |
3162 | { |
3163 | /* Immediate. */ | |
3164 | parse_expression (operands[i].buf + 1, &operands[i].exp); | |
3165 | } | |
39bec121 | 3166 | else if (operands[i].buf[0] == '@') |
9a736b6b NC |
3167 | { |
3168 | /* Direct notation. */ | |
3169 | parse_expression (operands[i].buf + 1, &operands[i].exp); | |
3170 | } | |
39bec121 | 3171 | else if (operands[i].buf[0] == '*') |
9a736b6b NC |
3172 | { |
3173 | /* Indirect. */ | |
3174 | char *paren = strchr (operands[i].buf, '('); | |
f1e7a2c9 | 3175 | |
9a736b6b NC |
3176 | /* Allow immediate syntax in the inner expression. */ |
3177 | if (paren && paren[1] == '#') | |
3178 | *++paren = '('; | |
3179 | ||
3180 | /* Pull out the lk expression or SP offset, if present. */ | |
3181 | if (paren != NULL) | |
3182 | { | |
3183 | int len = strlen (paren); | |
3184 | char *end = paren + len; | |
3185 | int c; | |
f1e7a2c9 | 3186 | |
9a736b6b NC |
3187 | while (end[-1] != ')') |
3188 | if (--end <= paren) | |
3189 | { | |
3190 | as_bad (_("Badly formed address expression")); | |
3191 | return -1; | |
3192 | } | |
3193 | c = *end; | |
3194 | *end = '\0'; | |
3195 | parse_expression (paren, &operands[i].exp); | |
3196 | *end = c; | |
3197 | } | |
3198 | else | |
3199 | operands[i].exp.X_op = O_absent; | |
3200 | } | |
39bec121 | 3201 | else |
9a736b6b | 3202 | parse_expression (operands[i].buf, &operands[i].exp); |
39bec121 TW |
3203 | } |
3204 | ||
3205 | return numexp; | |
3206 | } | |
3207 | ||
d0313fb7 | 3208 | /* Predicates for different operand types. */ |
9a736b6b | 3209 | |
39bec121 | 3210 | static int |
5a49b8ac | 3211 | is_immediate (struct opstruct *operand) |
39bec121 | 3212 | { |
1aea3bb8 | 3213 | return *operand->buf == '#'; |
39bec121 TW |
3214 | } |
3215 | ||
3216 | /* This is distinguished from immediate because some numbers must be constants | |
d0313fb7 | 3217 | and must *not* have the '#' prefix. */ |
9a736b6b | 3218 | |
39bec121 | 3219 | static int |
5a49b8ac | 3220 | is_absolute (struct opstruct *operand) |
39bec121 TW |
3221 | { |
3222 | return operand->exp.X_op == O_constant && !is_immediate (operand); | |
3223 | } | |
3224 | ||
d0313fb7 | 3225 | /* Is this an indirect operand? */ |
9a736b6b | 3226 | |
39bec121 | 3227 | static int |
5a49b8ac | 3228 | is_indirect (struct opstruct *operand) |
39bec121 TW |
3229 | { |
3230 | return operand->buf[0] == '*'; | |
3231 | } | |
3232 | ||
d0313fb7 | 3233 | /* Is this a valid dual-memory operand? */ |
9a736b6b | 3234 | |
39bec121 | 3235 | static int |
5a49b8ac | 3236 | is_dual (struct opstruct *operand) |
39bec121 TW |
3237 | { |
3238 | if (is_indirect (operand) && strncasecmp (operand->buf, "*ar", 3) == 0) | |
3239 | { | |
3240 | char *tmp = operand->buf + 3; | |
3241 | int arf; | |
3242 | int valid_mod; | |
1aea3bb8 | 3243 | |
39bec121 | 3244 | arf = *tmp++ - '0'; |
d0313fb7 | 3245 | /* Only allow *ARx, *ARx-, *ARx+, or *ARx+0%. */ |
39bec121 | 3246 | valid_mod = *tmp == '\0' || |
9a736b6b NC |
3247 | strcasecmp (tmp, "-") == 0 || |
3248 | strcasecmp (tmp, "+") == 0 || | |
3249 | strcasecmp (tmp, "+0%") == 0; | |
39bec121 TW |
3250 | return arf >= 2 && arf <= 5 && valid_mod; |
3251 | } | |
3252 | return 0; | |
3253 | } | |
3254 | ||
3255 | static int | |
5a49b8ac | 3256 | is_mmreg (struct opstruct *operand) |
39bec121 | 3257 | { |
9a736b6b NC |
3258 | return (is_absolute (operand) |
3259 | || is_immediate (operand) | |
3260 | || hash_find (mmreg_hash, operand->buf) != 0); | |
39bec121 TW |
3261 | } |
3262 | ||
3263 | static int | |
5a49b8ac | 3264 | is_type (struct opstruct *operand, enum optype type) |
39bec121 TW |
3265 | { |
3266 | switch (type) | |
3267 | { | |
3268 | case OP_None: | |
3269 | return operand->buf[0] == 0; | |
3270 | case OP_Xmem: | |
3271 | case OP_Ymem: | |
3272 | return is_dual (operand); | |
3273 | case OP_Sind: | |
3274 | return is_indirect (operand); | |
3275 | case OP_xpmad_ms7: | |
d0313fb7 | 3276 | /* This one *must* be immediate. */ |
39bec121 TW |
3277 | return is_immediate (operand); |
3278 | case OP_xpmad: | |
3279 | case OP_pmad: | |
3280 | case OP_PA: | |
3281 | case OP_dmad: | |
3282 | case OP_Lmem: | |
3283 | case OP_MMR: | |
3284 | return 1; | |
3285 | case OP_Smem: | |
d0313fb7 | 3286 | /* Address may be a numeric, indirect, or an expression. */ |
39bec121 TW |
3287 | return !is_immediate (operand); |
3288 | case OP_MMRY: | |
3289 | case OP_MMRX: | |
3290 | return is_mmreg (operand); | |
3291 | case OP_SRC: | |
3292 | case OP_SRC1: | |
3293 | case OP_RND: | |
3294 | case OP_DST: | |
3295 | return is_accumulator (operand); | |
3296 | case OP_B: | |
3882b010 | 3297 | return is_accumulator (operand) && TOUPPER (operand->buf[0]) == 'B'; |
39bec121 | 3298 | case OP_A: |
3882b010 | 3299 | return is_accumulator (operand) && TOUPPER (operand->buf[0]) == 'A'; |
39bec121 | 3300 | case OP_ARX: |
1aea3bb8 | 3301 | return strncasecmp ("ar", operand->buf, 2) == 0 |
3882b010 | 3302 | && ISDIGIT (operand->buf[2]); |
39bec121 TW |
3303 | case OP_SBIT: |
3304 | return hash_find (sbit_hash, operand->buf) != 0 || is_absolute (operand); | |
3305 | case OP_CC: | |
3306 | return hash_find (cc_hash, operand->buf) != 0; | |
3307 | case OP_CC2: | |
3308 | return hash_find (cc2_hash, operand->buf) != 0; | |
3309 | case OP_CC3: | |
1aea3bb8 | 3310 | return hash_find (cc3_hash, operand->buf) != 0 |
9a736b6b | 3311 | || is_immediate (operand) || is_absolute (operand); |
39bec121 TW |
3312 | case OP_16: |
3313 | return (is_immediate (operand) || is_absolute (operand)) | |
9a736b6b | 3314 | && operand->exp.X_add_number == 16; |
39bec121 | 3315 | case OP_N: |
d0313fb7 | 3316 | /* Allow st0 or st1 instead of a numeric. */ |
39bec121 | 3317 | return is_absolute (operand) || is_immediate (operand) || |
9a736b6b NC |
3318 | strcasecmp ("st0", operand->buf) == 0 || |
3319 | strcasecmp ("st1", operand->buf) == 0; | |
39bec121 TW |
3320 | case OP_12: |
3321 | case OP_123: | |
3322 | return is_absolute (operand) || is_immediate (operand); | |
3323 | case OP_SHFT: | |
3324 | return (is_immediate (operand) || is_absolute (operand)) | |
9a736b6b | 3325 | && operand->exp.X_add_number >= 0 && operand->exp.X_add_number < 16; |
39bec121 | 3326 | case OP_SHIFT: |
d0313fb7 | 3327 | /* Let this one catch out-of-range values. */ |
39bec121 | 3328 | return (is_immediate (operand) || is_absolute (operand)) |
9a736b6b | 3329 | && operand->exp.X_add_number != 16; |
39bec121 TW |
3330 | case OP_BITC: |
3331 | case OP_031: | |
3332 | case OP_k8: | |
3333 | return is_absolute (operand) || is_immediate (operand); | |
3334 | case OP_k8u: | |
1aea3bb8 | 3335 | return is_immediate (operand) |
9a736b6b NC |
3336 | && operand->exp.X_op == O_constant |
3337 | && operand->exp.X_add_number >= 0 | |
3338 | && operand->exp.X_add_number < 256; | |
39bec121 TW |
3339 | case OP_lk: |
3340 | case OP_lku: | |
1aea3bb8 | 3341 | /* Allow anything; assumes opcodes are ordered with Smem operands |
9a736b6b | 3342 | versions first. */ |
39bec121 TW |
3343 | return 1; |
3344 | case OP_k5: | |
3345 | case OP_k3: | |
3346 | case OP_k9: | |
d0313fb7 | 3347 | /* Just make sure it's an integer; check range later. */ |
39bec121 TW |
3348 | return is_immediate (operand); |
3349 | case OP_T: | |
1aea3bb8 | 3350 | return strcasecmp ("t", operand->buf) == 0 || |
9a736b6b | 3351 | strcasecmp ("treg", operand->buf) == 0; |
39bec121 TW |
3352 | case OP_TS: |
3353 | return strcasecmp ("ts", operand->buf) == 0; | |
3354 | case OP_ASM: | |
3355 | return strcasecmp ("asm", operand->buf) == 0; | |
3356 | case OP_TRN: | |
3357 | return strcasecmp ("trn", operand->buf) == 0; | |
3358 | case OP_DP: | |
3359 | return strcasecmp ("dp", operand->buf) == 0; | |
3360 | case OP_ARP: | |
3361 | return strcasecmp ("arp", operand->buf) == 0; | |
3362 | default: | |
3363 | return 0; | |
3364 | } | |
3365 | } | |
3366 | ||
3367 | static int | |
5a49b8ac AM |
3368 | operands_match (tic54x_insn *insn, |
3369 | struct opstruct *operands, | |
3370 | int opcount, | |
3371 | const enum optype *refoptype, | |
3372 | int minops, | |
3373 | int maxops) | |
39bec121 TW |
3374 | { |
3375 | int op = 0, refop = 0; | |
3376 | ||
3377 | if (opcount == 0 && minops == 0) | |
f1e7a2c9 | 3378 | return 1; |
39bec121 TW |
3379 | |
3380 | while (op <= maxops && refop <= maxops) | |
3381 | { | |
3382 | while (!is_type (&operands[op], OPTYPE (refoptype[refop]))) | |
9a736b6b NC |
3383 | { |
3384 | /* Skip an optional template operand if it doesn't agree | |
3385 | with the current operand. */ | |
3386 | if (refoptype[refop] & OPT) | |
3387 | { | |
3388 | ++refop; | |
3389 | --maxops; | |
3390 | if (refop > maxops) | |
3391 | return 0; | |
3392 | } | |
3393 | else | |
3394 | return 0; | |
3395 | } | |
39bec121 | 3396 | |
d0313fb7 | 3397 | /* Save the actual operand type for later use. */ |
39bec121 TW |
3398 | operands[op].type = OPTYPE (refoptype[refop]); |
3399 | ++refop; | |
3400 | ++op; | |
d0313fb7 | 3401 | /* Have we matched them all yet? */ |
39bec121 | 3402 | if (op == opcount) |
9a736b6b NC |
3403 | { |
3404 | while (op < maxops) | |
3405 | { | |
3406 | /* If a later operand is *not* optional, no match. */ | |
3407 | if ((refoptype[refop] & OPT) == 0) | |
3408 | return 0; | |
3409 | /* Flag any implicit default OP_DST operands so we know to add | |
3410 | them explicitly when encoding the operand later. */ | |
3411 | if (OPTYPE (refoptype[refop]) == OP_DST) | |
3412 | insn->using_default_dst = 1; | |
3413 | ++refop; | |
3414 | ++op; | |
3415 | } | |
3416 | ||
3417 | return 1; | |
3418 | } | |
39bec121 TW |
3419 | } |
3420 | ||
3421 | return 0; | |
3422 | } | |
3423 | ||
1aea3bb8 | 3424 | /* 16-bit direct memory address |
39bec121 TW |
3425 | Explicit dmad operands are always in last word of insn (usually second |
3426 | word, but bumped to third if lk addressing is used) | |
3427 | ||
3428 | We allow *(dmad) notation because the TI assembler allows it. | |
3429 | ||
1aea3bb8 | 3430 | XPC_CODE: |
39bec121 TW |
3431 | 0 for 16-bit addresses |
3432 | 1 for full 23-bit addresses | |
d0313fb7 | 3433 | 2 for the upper 7 bits of a 23-bit address (LDX). */ |
9a736b6b | 3434 | |
39bec121 | 3435 | static int |
5a49b8ac | 3436 | encode_dmad (tic54x_insn *insn, struct opstruct *operand, int xpc_code) |
39bec121 TW |
3437 | { |
3438 | int op = 1 + insn->is_lkaddr; | |
3439 | ||
d0313fb7 | 3440 | /* Only allow *(dmad) expressions; all others are invalid. */ |
1aea3bb8 | 3441 | if (is_indirect (operand) && operand->buf[strlen (operand->buf) - 1] != ')') |
39bec121 TW |
3442 | { |
3443 | as_bad (_("Invalid dmad syntax '%s'"), operand->buf); | |
3444 | return 0; | |
3445 | } | |
3446 | ||
3447 | insn->opcode[op].addr_expr = operand->exp; | |
3448 | ||
3449 | if (insn->opcode[op].addr_expr.X_op == O_constant) | |
3450 | { | |
3451 | valueT value = insn->opcode[op].addr_expr.X_add_number; | |
f1e7a2c9 | 3452 | |
39bec121 | 3453 | if (xpc_code == 1) |
9a736b6b NC |
3454 | { |
3455 | insn->opcode[0].word &= 0xFF80; | |
3456 | insn->opcode[0].word |= (value >> 16) & 0x7F; | |
3457 | insn->opcode[1].word = value & 0xFFFF; | |
3458 | } | |
39bec121 | 3459 | else if (xpc_code == 2) |
9a736b6b | 3460 | insn->opcode[op].word = (value >> 16) & 0xFFFF; |
39bec121 | 3461 | else |
9a736b6b | 3462 | insn->opcode[op].word = value; |
39bec121 TW |
3463 | } |
3464 | else | |
3465 | { | |
d0313fb7 | 3466 | /* Do the fixup later; just store the expression. */ |
39bec121 TW |
3467 | insn->opcode[op].word = 0; |
3468 | insn->opcode[op].r_nchars = 2; | |
3469 | ||
3470 | if (amode == c_mode) | |
9a736b6b | 3471 | insn->opcode[op].r_type = BFD_RELOC_TIC54X_16_OF_23; |
39bec121 | 3472 | else if (xpc_code == 1) |
9a736b6b NC |
3473 | { |
3474 | /* This relocation spans two words, so adjust accordingly. */ | |
3475 | insn->opcode[0].addr_expr = operand->exp; | |
3476 | insn->opcode[0].r_type = BFD_RELOC_TIC54X_23; | |
3477 | insn->opcode[0].r_nchars = 4; | |
3478 | insn->opcode[0].unresolved = 1; | |
3479 | /* It's really 2 words, but we want to stop encoding after the | |
3480 | first, since we must encode both words at once. */ | |
3481 | insn->words = 1; | |
3482 | } | |
39bec121 | 3483 | else if (xpc_code == 2) |
9a736b6b | 3484 | insn->opcode[op].r_type = BFD_RELOC_TIC54X_MS7_OF_23; |
39bec121 | 3485 | else |
9a736b6b | 3486 | insn->opcode[op].r_type = BFD_RELOC_TIC54X_16_OF_23; |
39bec121 TW |
3487 | |
3488 | insn->opcode[op].unresolved = 1; | |
3489 | } | |
3490 | ||
3491 | return 1; | |
3492 | } | |
3493 | ||
d0313fb7 | 3494 | /* 7-bit direct address encoding. */ |
9a736b6b | 3495 | |
39bec121 | 3496 | static int |
5a49b8ac | 3497 | encode_address (tic54x_insn *insn, struct opstruct *operand) |
39bec121 | 3498 | { |
d0313fb7 | 3499 | /* Assumes that dma addresses are *always* in word 0 of the opcode. */ |
39bec121 TW |
3500 | insn->opcode[0].addr_expr = operand->exp; |
3501 | ||
3502 | if (operand->exp.X_op == O_constant) | |
3503 | insn->opcode[0].word |= (operand->exp.X_add_number & 0x7F); | |
3504 | else | |
3505 | { | |
f1e7a2c9 NC |
3506 | if (operand->exp.X_op == O_register) |
3507 | as_bad (_("Use the .mmregs directive to use memory-mapped register names such as '%s'"), operand->buf); | |
d0313fb7 | 3508 | /* Do the fixup later; just store the expression. */ |
39bec121 TW |
3509 | insn->opcode[0].r_nchars = 1; |
3510 | insn->opcode[0].r_type = BFD_RELOC_TIC54X_PARTLS7; | |
3511 | insn->opcode[0].unresolved = 1; | |
3512 | } | |
3513 | ||
3514 | return 1; | |
3515 | } | |
3516 | ||
3517 | static int | |
5a49b8ac | 3518 | encode_indirect (tic54x_insn *insn, struct opstruct *operand) |
39bec121 TW |
3519 | { |
3520 | int arf; | |
3521 | int mod; | |
3522 | ||
3523 | if (insn->is_lkaddr) | |
3524 | { | |
d0313fb7 | 3525 | /* lk addresses always go in the second insn word. */ |
3882b010 | 3526 | mod = ((TOUPPER (operand->buf[1]) == 'A') ? 12 : |
9a736b6b NC |
3527 | (operand->buf[1] == '(') ? 15 : |
3528 | (strchr (operand->buf, '%') != NULL) ? 14 : 13); | |
39bec121 | 3529 | arf = ((mod == 12) ? operand->buf[3] - '0' : |
9a736b6b | 3530 | (mod == 15) ? 0 : operand->buf[4] - '0'); |
1aea3bb8 | 3531 | |
39bec121 TW |
3532 | insn->opcode[1].addr_expr = operand->exp; |
3533 | ||
3534 | if (operand->exp.X_op == O_constant) | |
9a736b6b | 3535 | insn->opcode[1].word = operand->exp.X_add_number; |
39bec121 | 3536 | else |
9a736b6b NC |
3537 | { |
3538 | insn->opcode[1].word = 0; | |
3539 | insn->opcode[1].r_nchars = 2; | |
3540 | insn->opcode[1].r_type = BFD_RELOC_TIC54X_16_OF_23; | |
3541 | insn->opcode[1].unresolved = 1; | |
3542 | } | |
39bec121 TW |
3543 | } |
3544 | else if (strncasecmp (operand->buf, "*sp (", 4) == 0) | |
3545 | { | |
d0313fb7 | 3546 | /* Stack offsets look the same as 7-bit direct addressing. */ |
39bec121 TW |
3547 | return encode_address (insn, operand); |
3548 | } | |
3549 | else | |
3550 | { | |
3882b010 | 3551 | arf = (TOUPPER (operand->buf[1]) == 'A' ? |
9a736b6b | 3552 | operand->buf[3] : operand->buf[4]) - '0'; |
1aea3bb8 NC |
3553 | |
3554 | if (operand->buf[1] == '+') | |
9a736b6b NC |
3555 | { |
3556 | mod = 3; /* *+ARx */ | |
3557 | if (insn->tm->flags & FL_SMR) | |
3558 | as_warn (_("Address mode *+ARx is write-only. " | |
3559 | "Results of reading are undefined.")); | |
3560 | } | |
1aea3bb8 | 3561 | else if (operand->buf[4] == '\0') |
9a736b6b | 3562 | mod = 0; /* *ARx */ |
39bec121 | 3563 | else if (operand->buf[5] == '\0') |
9a736b6b | 3564 | mod = (operand->buf[4] == '-' ? 1 : 2); /* *ARx+ / *ARx- */ |
39bec121 | 3565 | else if (operand->buf[6] == '\0') |
9a736b6b NC |
3566 | { |
3567 | if (operand->buf[5] == '0') | |
3568 | mod = (operand->buf[4] == '-' ? 5 : 6); /* *ARx+0 / *ARx-0 */ | |
3569 | else | |
3570 | mod = (operand->buf[4] == '-' ? 8 : 10);/* *ARx+% / *ARx-% */ | |
3571 | } | |
3882b010 | 3572 | else if (TOUPPER (operand->buf[6]) == 'B') |
9a736b6b | 3573 | mod = (operand->buf[4] == '-' ? 4 : 7); /* ARx+0B / *ARx-0B */ |
3882b010 | 3574 | else if (TOUPPER (operand->buf[6]) == '%') |
9a736b6b | 3575 | mod = (operand->buf[4] == '-' ? 9 : 11); /* ARx+0% / *ARx - 0% */ |
39bec121 | 3576 | else |
9a736b6b NC |
3577 | { |
3578 | as_bad (_("Unrecognized indirect address format \"%s\""), | |
3579 | operand->buf); | |
3580 | return 0; | |
3581 | } | |
1aea3bb8 | 3582 | } |
39bec121 | 3583 | |
1aea3bb8 | 3584 | insn->opcode[0].word |= 0x80 | (mod << 3) | arf; |
39bec121 TW |
3585 | |
3586 | return 1; | |
3587 | } | |
3588 | ||
3589 | static int | |
5a49b8ac AM |
3590 | encode_integer (tic54x_insn *insn, |
3591 | struct opstruct *operand, | |
3592 | int which, | |
3593 | int min, | |
3594 | int max, | |
3595 | unsigned short mask) | |
39bec121 TW |
3596 | { |
3597 | long parse, integer; | |
3598 | ||
3599 | insn->opcode[which].addr_expr = operand->exp; | |
3600 | ||
3601 | if (operand->exp.X_op == O_constant) | |
3602 | { | |
3603 | parse = operand->exp.X_add_number; | |
d0313fb7 | 3604 | /* Hack -- fixup for 16-bit hex quantities that get converted positive |
9a736b6b | 3605 | instead of negative. */ |
39bec121 | 3606 | if ((parse & 0x8000) && min == -32768 && max == 32767) |
9a736b6b | 3607 | integer = (short) parse; |
39bec121 | 3608 | else |
9a736b6b | 3609 | integer = parse; |
39bec121 TW |
3610 | |
3611 | if (integer >= min && integer <= max) | |
9a736b6b NC |
3612 | { |
3613 | insn->opcode[which].word |= (integer & mask); | |
3614 | return 1; | |
3615 | } | |
1aea3bb8 | 3616 | as_bad (_("Operand '%s' out of range (%d <= x <= %d)"), |
9a736b6b | 3617 | operand->buf, min, max); |
39bec121 TW |
3618 | } |
3619 | else | |
3620 | { | |
3621 | if (insn->opcode[which].addr_expr.X_op == O_constant) | |
9a736b6b NC |
3622 | { |
3623 | insn->opcode[which].word |= | |
3624 | insn->opcode[which].addr_expr.X_add_number & mask; | |
3625 | } | |
39bec121 | 3626 | else |
9a736b6b NC |
3627 | { |
3628 | /* Do the fixup later; just store the expression. */ | |
3629 | bfd_reloc_code_real_type rtype = | |
3630 | (mask == 0x1FF ? BFD_RELOC_TIC54X_PARTMS9 : | |
3631 | mask == 0xFFFF ? BFD_RELOC_TIC54X_16_OF_23 : | |
3632 | mask == 0x7F ? BFD_RELOC_TIC54X_PARTLS7 : BFD_RELOC_8); | |
3633 | int size = (mask == 0x1FF || mask == 0xFFFF) ? 2 : 1; | |
3634 | ||
3635 | if (rtype == BFD_RELOC_8) | |
3636 | as_bad (_("Error in relocation handling")); | |
3637 | ||
3638 | insn->opcode[which].r_nchars = size; | |
3639 | insn->opcode[which].r_type = rtype; | |
3640 | insn->opcode[which].unresolved = 1; | |
3641 | } | |
39bec121 TW |
3642 | |
3643 | return 1; | |
3644 | } | |
3645 | ||
3646 | return 0; | |
3647 | } | |
3648 | ||
3649 | static int | |
5a49b8ac | 3650 | encode_condition (tic54x_insn *insn, struct opstruct *operand) |
39bec121 | 3651 | { |
3d207518 | 3652 | tic54x_symbol *cc = (tic54x_symbol *) hash_find (cc_hash, operand->buf); |
39bec121 TW |
3653 | if (!cc) |
3654 | { | |
3655 | as_bad (_("Unrecognized condition code \"%s\""), operand->buf); | |
3656 | return 0; | |
3657 | } | |
3658 | #define CC_GROUP 0x40 | |
3659 | #define CC_ACC 0x08 | |
3660 | #define CATG_A1 0x07 | |
3661 | #define CATG_B1 0x30 | |
3662 | #define CATG_A2 0x30 | |
3663 | #define CATG_B2 0x0C | |
3664 | #define CATG_C2 0x03 | |
d0313fb7 | 3665 | /* Disallow group 1 conditions mixed with group 2 conditions |
39bec121 | 3666 | if group 1, allow only one category A and one category B |
d0313fb7 | 3667 | if group 2, allow only one each of category A, B, and C. */ |
39bec121 TW |
3668 | if (((insn->opcode[0].word & 0xFF) != 0)) |
3669 | { | |
3670 | if ((insn->opcode[0].word & CC_GROUP) != (cc->value & CC_GROUP)) | |
9a736b6b NC |
3671 | { |
3672 | as_bad (_("Condition \"%s\" does not match preceding group"), | |
3673 | operand->buf); | |
3674 | return 0; | |
3675 | } | |
39bec121 | 3676 | if (insn->opcode[0].word & CC_GROUP) |
9a736b6b NC |
3677 | { |
3678 | if ((insn->opcode[0].word & CC_ACC) != (cc->value & CC_ACC)) | |
3679 | { | |
3680 | as_bad (_("Condition \"%s\" uses a different accumulator from " | |
3681 | "a preceding condition"), | |
3682 | operand->buf); | |
3683 | return 0; | |
3684 | } | |
3685 | if ((insn->opcode[0].word & CATG_A1) && (cc->value & CATG_A1)) | |
3686 | { | |
3687 | as_bad (_("Only one comparison conditional allowed")); | |
3688 | return 0; | |
3689 | } | |
3690 | if ((insn->opcode[0].word & CATG_B1) && (cc->value & CATG_B1)) | |
3691 | { | |
3692 | as_bad (_("Only one overflow conditional allowed")); | |
3693 | return 0; | |
3694 | } | |
3695 | } | |
f1e7a2c9 NC |
3696 | else if ( ((insn->opcode[0].word & CATG_A2) && (cc->value & CATG_A2)) |
3697 | || ((insn->opcode[0].word & CATG_B2) && (cc->value & CATG_B2)) | |
3698 | || ((insn->opcode[0].word & CATG_C2) && (cc->value & CATG_C2))) | |
9a736b6b NC |
3699 | { |
3700 | as_bad (_("Duplicate %s conditional"), operand->buf); | |
3701 | return 0; | |
3702 | } | |
39bec121 TW |
3703 | } |
3704 | ||
3705 | insn->opcode[0].word |= cc->value; | |
3706 | return 1; | |
3707 | } | |
3708 | ||
3709 | static int | |
5a49b8ac | 3710 | encode_cc3 (tic54x_insn *insn, struct opstruct *operand) |
39bec121 | 3711 | { |
3d207518 | 3712 | tic54x_symbol *cc3 = (tic54x_symbol *) hash_find (cc3_hash, operand->buf); |
39bec121 TW |
3713 | int value = cc3 ? cc3->value : operand->exp.X_add_number << 8; |
3714 | ||
3715 | if ((value & 0x0300) != value) | |
3716 | { | |
3717 | as_bad (_("Unrecognized condition code \"%s\""), operand->buf); | |
3718 | return 0; | |
3719 | } | |
3720 | insn->opcode[0].word |= value; | |
3721 | return 1; | |
3722 | } | |
3723 | ||
3724 | static int | |
5a49b8ac | 3725 | encode_arx (tic54x_insn *insn, struct opstruct *operand) |
39bec121 TW |
3726 | { |
3727 | int arf = strlen (operand->buf) >= 3 ? operand->buf[2] - '0' : -1; | |
f1e7a2c9 | 3728 | |
39bec121 TW |
3729 | if (strncasecmp ("ar", operand->buf, 2) || arf < 0 || arf > 7) |
3730 | { | |
3731 | as_bad (_("Invalid auxiliary register (use AR0-AR7)")); | |
3732 | return 0; | |
3733 | } | |
3734 | insn->opcode[0].word |= arf; | |
3735 | return 1; | |
3736 | } | |
3737 | ||
3738 | static int | |
5a49b8ac | 3739 | encode_cc2 (tic54x_insn *insn, struct opstruct *operand) |
39bec121 | 3740 | { |
3d207518 | 3741 | tic54x_symbol *cc2 = (tic54x_symbol *) hash_find (cc2_hash, operand->buf); |
f1e7a2c9 | 3742 | |
39bec121 TW |
3743 | if (!cc2) |
3744 | { | |
3745 | as_bad (_("Unrecognized condition code \"%s\""), operand->buf); | |
3746 | return 0; | |
3747 | } | |
3748 | insn->opcode[0].word |= cc2->value; | |
3749 | return 1; | |
3750 | } | |
3751 | ||
3752 | static int | |
5a49b8ac | 3753 | encode_operand (tic54x_insn *insn, enum optype type, struct opstruct *operand) |
39bec121 | 3754 | { |
6e917903 | 3755 | int ext = (insn->tm->flags & FL_EXT) != 0; |
39bec121 TW |
3756 | |
3757 | if (type == OP_MMR && operand->exp.X_op != O_constant) | |
3758 | { | |
d0313fb7 | 3759 | /* Disallow long-constant addressing for memory-mapped addressing. */ |
39bec121 | 3760 | if (insn->is_lkaddr) |
9a736b6b NC |
3761 | { |
3762 | as_bad (_("lk addressing modes are invalid for memory-mapped " | |
3763 | "register addressing")); | |
3764 | return 0; | |
3765 | } | |
39bec121 | 3766 | type = OP_Smem; |
d0313fb7 | 3767 | /* Warn about *+ARx when used with MMR operands. */ |
39bec121 | 3768 | if (strncasecmp (operand->buf, "*+ar", 4) == 0) |
9a736b6b NC |
3769 | { |
3770 | as_warn (_("Address mode *+ARx is not allowed in memory-mapped " | |
3771 | "register addressing. Resulting behavior is " | |
3772 | "undefined.")); | |
3773 | } | |
39bec121 TW |
3774 | } |
3775 | ||
3776 | switch (type) | |
3777 | { | |
3778 | case OP_None: | |
3779 | return 1; | |
3780 | case OP_dmad: | |
d0313fb7 | 3781 | /* 16-bit immediate value. */ |
39bec121 TW |
3782 | return encode_dmad (insn, operand, 0); |
3783 | case OP_SRC: | |
3882b010 | 3784 | if (TOUPPER (*operand->buf) == 'B') |
9a736b6b NC |
3785 | { |
3786 | insn->opcode[ext ? (1 + insn->is_lkaddr) : 0].word |= (1 << 9); | |
3787 | if (insn->using_default_dst) | |
3788 | insn->opcode[ext ? (1 + insn->is_lkaddr) : 0].word |= (1 << 8); | |
3789 | } | |
39bec121 TW |
3790 | return 1; |
3791 | case OP_RND: | |
5f5e16be | 3792 | /* Make sure this agrees with the OP_DST operand. */ |
3882b010 | 3793 | if (!((TOUPPER (operand->buf[0]) == 'B') ^ |
9a736b6b NC |
3794 | ((insn->opcode[0].word & (1 << 8)) != 0))) |
3795 | { | |
3796 | as_bad (_("Destination accumulator for each part of this parallel " | |
3797 | "instruction must be different")); | |
3798 | return 0; | |
3799 | } | |
39bec121 TW |
3800 | return 1; |
3801 | case OP_SRC1: | |
3802 | case OP_DST: | |
3882b010 | 3803 | if (TOUPPER (operand->buf[0]) == 'B') |
9a736b6b | 3804 | insn->opcode[ext ? (1 + insn->is_lkaddr) : 0].word |= (1 << 8); |
39bec121 TW |
3805 | return 1; |
3806 | case OP_Xmem: | |
3807 | case OP_Ymem: | |
1aea3bb8 | 3808 | { |
9a736b6b NC |
3809 | int mod = (operand->buf[4] == '\0' ? 0 : /* *arx */ |
3810 | operand->buf[4] == '-' ? 1 : /* *arx- */ | |
3811 | operand->buf[5] == '\0' ? 2 : 3); /* *arx+, *arx+0% */ | |
1aea3bb8 NC |
3812 | int arf = operand->buf[3] - '0' - 2; |
3813 | int code = (mod << 2) | arf; | |
3814 | insn->opcode[0].word |= (code << (type == OP_Xmem ? 4 : 0)); | |
3815 | return 1; | |
3816 | } | |
39bec121 TW |
3817 | case OP_Lmem: |
3818 | case OP_Smem: | |
3819 | if (!is_indirect (operand)) | |
9a736b6b NC |
3820 | return encode_address (insn, operand); |
3821 | /* Fall through. */ | |
39bec121 TW |
3822 | case OP_Sind: |
3823 | return encode_indirect (insn, operand); | |
3824 | case OP_xpmad_ms7: | |
3825 | return encode_dmad (insn, operand, 2); | |
3826 | case OP_xpmad: | |
3827 | return encode_dmad (insn, operand, 1); | |
3828 | case OP_PA: | |
3829 | case OP_pmad: | |
3830 | return encode_dmad (insn, operand, 0); | |
3831 | case OP_ARX: | |
3832 | return encode_arx (insn, operand); | |
3833 | case OP_MMRX: | |
3834 | case OP_MMRY: | |
3835 | case OP_MMR: | |
1aea3bb8 NC |
3836 | { |
3837 | int value = operand->exp.X_add_number; | |
3838 | ||
3839 | if (type == OP_MMR) | |
3840 | insn->opcode[0].word |= value; | |
3841 | else | |
3842 | { | |
3843 | if (value < 16 || value > 24) | |
3844 | { | |
3845 | as_bad (_("Memory mapped register \"%s\" out of range"), | |
3846 | operand->buf); | |
3847 | return 0; | |
3848 | } | |
3849 | if (type == OP_MMRX) | |
3850 | insn->opcode[0].word |= (value - 16) << 4; | |
3851 | else | |
3852 | insn->opcode[0].word |= (value - 16); | |
3853 | } | |
3854 | return 1; | |
39bec121 | 3855 | } |
39bec121 TW |
3856 | case OP_B: |
3857 | case OP_A: | |
3858 | return 1; | |
3859 | case OP_SHFT: | |
1aea3bb8 | 3860 | return encode_integer (insn, operand, ext + insn->is_lkaddr, |
9a736b6b | 3861 | 0, 15, 0xF); |
39bec121 | 3862 | case OP_SHIFT: |
1aea3bb8 | 3863 | return encode_integer (insn, operand, ext + insn->is_lkaddr, |
9a736b6b | 3864 | -16, 15, 0x1F); |
39bec121 TW |
3865 | case OP_lk: |
3866 | return encode_integer (insn, operand, 1 + insn->is_lkaddr, | |
9a736b6b | 3867 | -32768, 32767, 0xFFFF); |
39bec121 TW |
3868 | case OP_CC: |
3869 | return encode_condition (insn, operand); | |
3870 | case OP_CC2: | |
3871 | return encode_cc2 (insn, operand); | |
3872 | case OP_CC3: | |
3873 | return encode_cc3 (insn, operand); | |
3874 | case OP_BITC: | |
3875 | return encode_integer (insn, operand, 0, 0, 15, 0xF); | |
3876 | case OP_k8: | |
3877 | return encode_integer (insn, operand, 0, -128, 127, 0xFF); | |
3878 | case OP_123: | |
1aea3bb8 NC |
3879 | { |
3880 | int value = operand->exp.X_add_number; | |
3881 | int code; | |
3882 | if (value < 1 || value > 3) | |
3883 | { | |
3884 | as_bad (_("Invalid operand (use 1, 2, or 3)")); | |
3885 | return 0; | |
3886 | } | |
3887 | code = value == 1 ? 0 : value == 2 ? 0x2 : 0x1; | |
3888 | insn->opcode[0].word |= (code << 8); | |
3889 | return 1; | |
3890 | } | |
39bec121 TW |
3891 | case OP_031: |
3892 | return encode_integer (insn, operand, 0, 0, 31, 0x1F); | |
3893 | case OP_k8u: | |
3894 | return encode_integer (insn, operand, 0, 0, 255, 0xFF); | |
3895 | case OP_lku: | |
1aea3bb8 | 3896 | return encode_integer (insn, operand, 1 + insn->is_lkaddr, |
9a736b6b | 3897 | 0, 65535, 0xFFFF); |
39bec121 | 3898 | case OP_SBIT: |
1aea3bb8 | 3899 | { |
3d207518 TS |
3900 | tic54x_symbol *sbit = (tic54x_symbol *) |
3901 | hash_find (sbit_hash, operand->buf); | |
1aea3bb8 NC |
3902 | int value = is_absolute (operand) ? |
3903 | operand->exp.X_add_number : (sbit ? sbit->value : -1); | |
3904 | int reg = 0; | |
3905 | ||
3906 | if (insn->opcount == 1) | |
3907 | { | |
3908 | if (!sbit) | |
3909 | { | |
3910 | as_bad (_("A status register or status bit name is required")); | |
3911 | return 0; | |
3912 | } | |
3913 | /* Guess the register based on the status bit; "ovb" is the last | |
3914 | status bit defined for st0. */ | |
3d207518 | 3915 | if (sbit > (tic54x_symbol *) hash_find (sbit_hash, "ovb")) |
1aea3bb8 NC |
3916 | reg = 1; |
3917 | } | |
3918 | if (value == -1) | |
3919 | { | |
3920 | as_bad (_("Unrecognized status bit \"%s\""), operand->buf); | |
3921 | return 0; | |
3922 | } | |
3923 | insn->opcode[0].word |= value; | |
3924 | insn->opcode[0].word |= (reg << 9); | |
3925 | return 1; | |
3926 | } | |
39bec121 TW |
3927 | case OP_N: |
3928 | if (strcasecmp (operand->buf, "st0") == 0 | |
9a736b6b NC |
3929 | || strcasecmp (operand->buf, "st1") == 0) |
3930 | { | |
3931 | insn->opcode[0].word |= | |
3932 | ((unsigned short) (operand->buf[2] - '0')) << 9; | |
3933 | return 1; | |
3934 | } | |
39bec121 | 3935 | else if (operand->exp.X_op == O_constant |
9a736b6b NC |
3936 | && (operand->exp.X_add_number == 0 |
3937 | || operand->exp.X_add_number == 1)) | |
3938 | { | |
3939 | insn->opcode[0].word |= | |
3940 | ((unsigned short) (operand->exp.X_add_number)) << 9; | |
3941 | return 1; | |
3942 | } | |
39bec121 TW |
3943 | as_bad (_("Invalid status register \"%s\""), operand->buf); |
3944 | return 0; | |
3945 | case OP_k5: | |
3946 | return encode_integer (insn, operand, 0, -16, 15, 0x1F); | |
3947 | case OP_k3: | |
3948 | return encode_integer (insn, operand, 0, 0, 7, 0x7); | |
3949 | case OP_k9: | |
3950 | return encode_integer (insn, operand, 0, 0, 0x1FF, 0x1FF); | |
3951 | case OP_12: | |
1aea3bb8 | 3952 | if (operand->exp.X_add_number != 1 |
9a736b6b NC |
3953 | && operand->exp.X_add_number != 2) |
3954 | { | |
3955 | as_bad (_("Operand \"%s\" out of range (use 1 or 2)"), operand->buf); | |
3956 | return 0; | |
3957 | } | |
39bec121 TW |
3958 | insn->opcode[0].word |= (operand->exp.X_add_number - 1) << 9; |
3959 | return 1; | |
3960 | case OP_16: | |
3961 | case OP_T: | |
3962 | case OP_TS: | |
3963 | case OP_ASM: | |
3964 | case OP_TRN: | |
3965 | case OP_DP: | |
3966 | case OP_ARP: | |
d0313fb7 | 3967 | /* No encoding necessary. */ |
39bec121 TW |
3968 | return 1; |
3969 | default: | |
3970 | return 0; | |
3971 | } | |
3972 | ||
3973 | return 1; | |
3974 | } | |
3975 | ||
3976 | static void | |
5a49b8ac | 3977 | emit_insn (tic54x_insn *insn) |
39bec121 TW |
3978 | { |
3979 | int i; | |
6e917903 TW |
3980 | flagword oldflags = bfd_get_section_flags (stdoutput, now_seg); |
3981 | flagword flags = oldflags | SEC_CODE; | |
3982 | ||
3983 | if (! bfd_set_section_flags (stdoutput, now_seg, flags)) | |
3984 | as_warn (_("error setting flags for \"%s\": %s"), | |
3985 | bfd_section_name (stdoutput, now_seg), | |
3986 | bfd_errmsg (bfd_get_error ())); | |
1aea3bb8 NC |
3987 | |
3988 | for (i = 0; i < insn->words; i++) | |
39bec121 | 3989 | { |
1aea3bb8 | 3990 | int size = (insn->opcode[i].unresolved |
9a736b6b | 3991 | && insn->opcode[i].r_type == BFD_RELOC_TIC54X_23) ? 4 : 2; |
39bec121 TW |
3992 | char *p = frag_more (size); |
3993 | ||
3994 | if (size == 2) | |
9a736b6b | 3995 | md_number_to_chars (p, (valueT) insn->opcode[i].word, 2); |
39bec121 | 3996 | else |
9a736b6b | 3997 | md_number_to_chars (p, (valueT) insn->opcode[i].word << 16, 4); |
1aea3bb8 | 3998 | |
39bec121 | 3999 | if (insn->opcode[i].unresolved) |
9a736b6b NC |
4000 | fix_new_exp (frag_now, p - frag_now->fr_literal, |
4001 | insn->opcode[i].r_nchars, &insn->opcode[i].addr_expr, | |
b34976b6 | 4002 | FALSE, insn->opcode[i].r_type); |
39bec121 TW |
4003 | } |
4004 | } | |
4005 | ||
1aea3bb8 | 4006 | /* Convert the operand strings into appropriate opcode values |
d0313fb7 | 4007 | return the total number of words used by the instruction. */ |
9a736b6b | 4008 | |
39bec121 | 4009 | static int |
5a49b8ac | 4010 | build_insn (tic54x_insn *insn) |
39bec121 TW |
4011 | { |
4012 | int i; | |
4013 | ||
d0313fb7 | 4014 | /* Only non-parallel instructions support lk addressing. */ |
6e917903 | 4015 | if (!(insn->tm->flags & FL_PAR)) |
39bec121 | 4016 | { |
1aea3bb8 | 4017 | for (i = 0; i < insn->opcount; i++) |
9a736b6b NC |
4018 | { |
4019 | if ((OPTYPE (insn->operands[i].type) == OP_Smem | |
4020 | || OPTYPE (insn->operands[i].type) == OP_Lmem | |
4021 | || OPTYPE (insn->operands[i].type) == OP_Sind) | |
4022 | && strchr (insn->operands[i].buf, '(') | |
4023 | /* Don't mistake stack-relative addressing for lk addressing. */ | |
4024 | && strncasecmp (insn->operands[i].buf, "*sp (", 4) != 0) | |
4025 | { | |
4026 | insn->is_lkaddr = 1; | |
4027 | insn->lkoperand = i; | |
4028 | break; | |
4029 | } | |
4030 | } | |
39bec121 | 4031 | } |
6e917903 | 4032 | insn->words = insn->tm->words + insn->is_lkaddr; |
39bec121 | 4033 | |
6e917903 TW |
4034 | insn->opcode[0].word = insn->tm->opcode; |
4035 | if (insn->tm->flags & FL_EXT) | |
1aea3bb8 | 4036 | insn->opcode[1 + insn->is_lkaddr].word = insn->tm->opcode2; |
39bec121 | 4037 | |
9a736b6b | 4038 | for (i = 0; i < insn->opcount; i++) |
39bec121 TW |
4039 | { |
4040 | enum optype type = insn->operands[i].type; | |
f1e7a2c9 | 4041 | |
39bec121 | 4042 | if (!encode_operand (insn, type, &insn->operands[i])) |
9a736b6b | 4043 | return 0; |
39bec121 | 4044 | } |
6e917903 | 4045 | if (insn->tm->flags & FL_PAR) |
9a736b6b NC |
4046 | for (i = 0; i < insn->paropcount; i++) |
4047 | { | |
4048 | enum optype partype = insn->paroperands[i].type; | |
f1e7a2c9 | 4049 | |
9a736b6b NC |
4050 | if (!encode_operand (insn, partype, &insn->paroperands[i])) |
4051 | return 0; | |
4052 | } | |
39bec121 TW |
4053 | |
4054 | emit_insn (insn); | |
4055 | ||
4056 | return insn->words; | |
4057 | } | |
4058 | ||
4059 | static int | |
5a49b8ac | 4060 | optimize_insn (tic54x_insn *insn) |
39bec121 | 4061 | { |
1aea3bb8 | 4062 | /* Optimize some instructions, helping out the brain-dead programmer. */ |
39bec121 TW |
4063 | #define is_zero(op) ((op).exp.X_op == O_constant && (op).exp.X_add_number == 0) |
4064 | if (strcasecmp (insn->tm->name, "add") == 0) | |
4065 | { | |
9a736b6b NC |
4066 | if (insn->opcount > 1 |
4067 | && is_accumulator (&insn->operands[insn->opcount - 2]) | |
4068 | && is_accumulator (&insn->operands[insn->opcount - 1]) | |
4069 | && strcasecmp (insn->operands[insn->opcount - 2].buf, | |
4070 | insn->operands[insn->opcount - 1].buf) == 0) | |
4071 | { | |
4072 | --insn->opcount; | |
4073 | insn->using_default_dst = 1; | |
4074 | return 1; | |
4075 | } | |
1aea3bb8 | 4076 | |
d0313fb7 | 4077 | /* Try to collapse if Xmem and shift count is zero. */ |
9a736b6b NC |
4078 | if ((OPTYPE (insn->tm->operand_types[0]) == OP_Xmem |
4079 | && OPTYPE (insn->tm->operand_types[1]) == OP_SHFT | |
4080 | && is_zero (insn->operands[1])) | |
4081 | /* Or if Smem, shift is zero or absent, and SRC == DST. */ | |
4082 | || (OPTYPE (insn->tm->operand_types[0]) == OP_Smem | |
4083 | && OPTYPE (insn->tm->operand_types[1]) == OP_SHIFT | |
4084 | && is_type (&insn->operands[1], OP_SHIFT) | |
4085 | && is_zero (insn->operands[1]) && insn->opcount == 3)) | |
4086 | { | |
4087 | insn->operands[1] = insn->operands[2]; | |
4088 | insn->opcount = 2; | |
4089 | return 1; | |
4090 | } | |
39bec121 TW |
4091 | } |
4092 | else if (strcasecmp (insn->tm->name, "ld") == 0) | |
4093 | { | |
4094 | if (insn->opcount == 3 && insn->operands[0].type != OP_SRC) | |
9a736b6b NC |
4095 | { |
4096 | if ((OPTYPE (insn->tm->operand_types[1]) == OP_SHIFT | |
4097 | || OPTYPE (insn->tm->operand_types[1]) == OP_SHFT) | |
4098 | && is_zero (insn->operands[1]) | |
4099 | && (OPTYPE (insn->tm->operand_types[0]) != OP_lk | |
4100 | || (insn->operands[0].exp.X_op == O_constant | |
4101 | && insn->operands[0].exp.X_add_number <= 255 | |
4102 | && insn->operands[0].exp.X_add_number >= 0))) | |
4103 | { | |
4104 | insn->operands[1] = insn->operands[2]; | |
4105 | insn->opcount = 2; | |
4106 | return 1; | |
4107 | } | |
4108 | } | |
4109 | } | |
4110 | else if (strcasecmp (insn->tm->name, "sth") == 0 | |
4111 | || strcasecmp (insn->tm->name, "stl") == 0) | |
4112 | { | |
4113 | if ((OPTYPE (insn->tm->operand_types[1]) == OP_SHIFT | |
4114 | || OPTYPE (insn->tm->operand_types[1]) == OP_SHFT) | |
4115 | && is_zero (insn->operands[1])) | |
4116 | { | |
4117 | insn->operands[1] = insn->operands[2]; | |
4118 | insn->opcount = 2; | |
4119 | return 1; | |
4120 | } | |
39bec121 TW |
4121 | } |
4122 | else if (strcasecmp (insn->tm->name, "sub") == 0) | |
4123 | { | |
9a736b6b NC |
4124 | if (insn->opcount > 1 |
4125 | && is_accumulator (&insn->operands[insn->opcount - 2]) | |
4126 | && is_accumulator (&insn->operands[insn->opcount - 1]) | |
4127 | && strcasecmp (insn->operands[insn->opcount - 2].buf, | |
4128 | insn->operands[insn->opcount - 1].buf) == 0) | |
4129 | { | |
4130 | --insn->opcount; | |
4131 | insn->using_default_dst = 1; | |
4132 | return 1; | |
4133 | } | |
4134 | ||
f1e7a2c9 | 4135 | if ( ((OPTYPE (insn->tm->operand_types[0]) == OP_Smem |
9a736b6b NC |
4136 | && OPTYPE (insn->tm->operand_types[1]) == OP_SHIFT) |
4137 | || (OPTYPE (insn->tm->operand_types[0]) == OP_Xmem | |
f1e7a2c9 | 4138 | && OPTYPE (insn->tm->operand_types[1]) == OP_SHFT)) |
9a736b6b NC |
4139 | && is_zero (insn->operands[1]) |
4140 | && insn->opcount == 3) | |
4141 | { | |
4142 | insn->operands[1] = insn->operands[2]; | |
4143 | insn->opcount = 2; | |
4144 | return 1; | |
4145 | } | |
39bec121 TW |
4146 | } |
4147 | return 0; | |
4148 | } | |
4149 | ||
d0313fb7 | 4150 | /* Find a matching template if possible, and get the operand strings. */ |
9a736b6b | 4151 | |
39bec121 | 4152 | static int |
5a49b8ac | 4153 | tic54x_parse_insn (tic54x_insn *insn, char *line) |
39bec121 | 4154 | { |
d3ce72d0 | 4155 | insn->tm = (insn_template *) hash_find (op_hash, insn->mnemonic); |
39bec121 TW |
4156 | if (!insn->tm) |
4157 | { | |
4158 | as_bad (_("Unrecognized instruction \"%s\""), insn->mnemonic); | |
4159 | return 0; | |
4160 | } | |
4161 | ||
4162 | insn->opcount = get_operands (insn->operands, line); | |
4163 | if (insn->opcount < 0) | |
1aea3bb8 | 4164 | return 0; |
39bec121 | 4165 | |
d0313fb7 | 4166 | /* Check each variation of operands for this mnemonic. */ |
39bec121 TW |
4167 | while (insn->tm->name && strcasecmp (insn->tm->name, insn->mnemonic) == 0) |
4168 | { | |
9a736b6b NC |
4169 | if (insn->opcount >= insn->tm->minops |
4170 | && insn->opcount <= insn->tm->maxops | |
4171 | && operands_match (insn, &insn->operands[0], insn->opcount, | |
4172 | insn->tm->operand_types, | |
4173 | insn->tm->minops, insn->tm->maxops)) | |
4174 | { | |
4175 | /* SUCCESS! now try some optimizations. */ | |
4176 | if (optimize_insn (insn)) | |
4177 | { | |
d3ce72d0 NC |
4178 | insn->tm = (insn_template *) hash_find (op_hash, |
4179 | insn->mnemonic); | |
9a736b6b NC |
4180 | continue; |
4181 | } | |
39bec121 | 4182 | |
9a736b6b NC |
4183 | return 1; |
4184 | } | |
39bec121 TW |
4185 | ++(insn->tm); |
4186 | } | |
1aea3bb8 NC |
4187 | as_bad (_("Unrecognized operand list '%s' for instruction '%s'"), |
4188 | line, insn->mnemonic); | |
39bec121 TW |
4189 | return 0; |
4190 | } | |
4191 | ||
d0313fb7 NC |
4192 | /* We set this in start_line_hook, 'cause if we do a line replacement, we |
4193 | won't be able to see the next line. */ | |
39bec121 | 4194 | static int parallel_on_next_line_hint = 0; |
9a736b6b | 4195 | |
39bec121 | 4196 | /* See if this is part of a parallel instruction |
d0313fb7 | 4197 | Look for a subsequent line starting with "||". */ |
9a736b6b | 4198 | |
39bec121 | 4199 | static int |
5a49b8ac | 4200 | next_line_shows_parallel (char *next_line) |
39bec121 | 4201 | { |
9a736b6b | 4202 | /* Look for the second half. */ |
3076e594 | 4203 | while (*next_line != 0 && ISSPACE (*next_line)) |
39bec121 TW |
4204 | ++next_line; |
4205 | ||
9a736b6b NC |
4206 | return (next_line[0] == PARALLEL_SEPARATOR |
4207 | && next_line[1] == PARALLEL_SEPARATOR); | |
39bec121 TW |
4208 | } |
4209 | ||
4210 | static int | |
5a49b8ac | 4211 | tic54x_parse_parallel_insn_firstline (tic54x_insn *insn, char *line) |
39bec121 | 4212 | { |
d3ce72d0 | 4213 | insn->tm = (insn_template *) hash_find (parop_hash, insn->mnemonic); |
6e917903 | 4214 | if (!insn->tm) |
39bec121 | 4215 | { |
1aea3bb8 | 4216 | as_bad (_("Unrecognized parallel instruction \"%s\""), |
9a736b6b | 4217 | insn->mnemonic); |
39bec121 TW |
4218 | return 0; |
4219 | } | |
4220 | ||
6e917903 TW |
4221 | while (insn->tm->name && strcasecmp (insn->tm->name, |
4222 | insn->mnemonic) == 0) | |
39bec121 TW |
4223 | { |
4224 | insn->opcount = get_operands (insn->operands, line); | |
4225 | if (insn->opcount < 0) | |
9a736b6b NC |
4226 | return 0; |
4227 | if (insn->opcount == 2 | |
4228 | && operands_match (insn, &insn->operands[0], insn->opcount, | |
6e917903 | 4229 | insn->tm->operand_types, 2, 2)) |
9a736b6b NC |
4230 | { |
4231 | return 1; | |
4232 | } | |
6e917903 | 4233 | ++(insn->tm); |
39bec121 | 4234 | } |
d0313fb7 | 4235 | /* Didn't find a matching parallel; try for a normal insn. */ |
39bec121 TW |
4236 | return 0; |
4237 | } | |
4238 | ||
d0313fb7 | 4239 | /* Parse the second line of a two-line parallel instruction. */ |
9a736b6b | 4240 | |
39bec121 | 4241 | static int |
5a49b8ac | 4242 | tic54x_parse_parallel_insn_lastline (tic54x_insn *insn, char *line) |
39bec121 TW |
4243 | { |
4244 | int valid_mnemonic = 0; | |
1aea3bb8 | 4245 | |
39bec121 | 4246 | insn->paropcount = get_operands (insn->paroperands, line); |
6e917903 | 4247 | while (insn->tm->name && strcasecmp (insn->tm->name, |
9a736b6b | 4248 | insn->mnemonic) == 0) |
39bec121 | 4249 | { |
6e917903 | 4250 | if (strcasecmp (insn->tm->parname, insn->parmnemonic) == 0) |
9a736b6b NC |
4251 | { |
4252 | valid_mnemonic = 1; | |
f1e7a2c9 | 4253 | |
6e917903 TW |
4254 | if (insn->paropcount >= insn->tm->minops |
4255 | && insn->paropcount <= insn->tm->maxops | |
9a736b6b NC |
4256 | && operands_match (insn, insn->paroperands, |
4257 | insn->paropcount, | |
6e917903 TW |
4258 | insn->tm->paroperand_types, |
4259 | insn->tm->minops, insn->tm->maxops)) | |
f1e7a2c9 | 4260 | return 1; |
9a736b6b | 4261 | } |
6e917903 | 4262 | ++(insn->tm); |
39bec121 TW |
4263 | } |
4264 | if (valid_mnemonic) | |
4265 | as_bad (_("Invalid operand (s) for parallel instruction \"%s\""), | |
9a736b6b | 4266 | insn->parmnemonic); |
39bec121 TW |
4267 | else |
4268 | as_bad (_("Unrecognized parallel instruction combination \"%s || %s\""), | |
9a736b6b | 4269 | insn->mnemonic, insn->parmnemonic); |
39bec121 TW |
4270 | |
4271 | return 0; | |
4272 | } | |
4273 | ||
d0313fb7 | 4274 | /* If quotes found, return copy of line up to closing quote; |
9a736b6b NC |
4275 | otherwise up until terminator. |
4276 | If it's a string, pass as-is; otherwise attempt substitution symbol | |
d0313fb7 | 4277 | replacement on the value. */ |
9a736b6b | 4278 | |
39bec121 | 4279 | static char * |
b9bb4a93 | 4280 | subsym_get_arg (char *line, const char *terminators, char **str, int nosub) |
39bec121 TW |
4281 | { |
4282 | char *ptr = line; | |
4283 | char *endp; | |
4284 | int is_string = *line == '"'; | |
3882b010 | 4285 | int is_char = ISDIGIT (*line); |
39bec121 TW |
4286 | |
4287 | if (is_char) | |
4288 | { | |
3882b010 | 4289 | while (ISDIGIT (*ptr)) |
9a736b6b | 4290 | ++ptr; |
39bec121 | 4291 | endp = ptr; |
29a2809e | 4292 | *str = xmemdup0 (line, ptr - line); |
39bec121 TW |
4293 | } |
4294 | else if (is_string) | |
4295 | { | |
4296 | char *savedp = input_line_pointer; | |
4297 | int len; | |
f1e7a2c9 | 4298 | |
39bec121 TW |
4299 | input_line_pointer = ptr; |
4300 | *str = demand_copy_C_string (&len); | |
4301 | endp = input_line_pointer; | |
4302 | input_line_pointer = savedp; | |
4303 | ||
d0313fb7 | 4304 | /* Do forced substitutions if requested. */ |
39bec121 | 4305 | if (!nosub && **str == ':') |
9a736b6b | 4306 | *str = subsym_substitute (*str, 1); |
39bec121 TW |
4307 | } |
4308 | else | |
4309 | { | |
b9bb4a93 | 4310 | const char *term = terminators; |
39bec121 TW |
4311 | char *value = NULL; |
4312 | ||
4313 | while (*ptr && *ptr != *term) | |
9a736b6b NC |
4314 | { |
4315 | if (!*term) | |
4316 | { | |
4317 | term = terminators; | |
4318 | ++ptr; | |
4319 | } | |
4320 | else | |
4321 | ++term; | |
4322 | } | |
39bec121 | 4323 | endp = ptr; |
29a2809e | 4324 | *str = xmemdup0 (line, ptr - line); |
d0313fb7 | 4325 | /* Do simple substitution, if available. */ |
39bec121 | 4326 | if (!nosub && (value = subsym_lookup (*str, macro_level)) != NULL) |
1aea3bb8 | 4327 | *str = value; |
39bec121 TW |
4328 | } |
4329 | ||
4330 | return endp; | |
4331 | } | |
4332 | ||
d0313fb7 | 4333 | /* Replace the given substitution string. |
39bec121 TW |
4334 | We start at the innermost macro level, so that existing locals remain local |
4335 | Note: we're treating macro args identically to .var's; I don't know if | |
d0313fb7 | 4336 | that's compatible w/TI's assembler. */ |
9a736b6b | 4337 | |
39bec121 | 4338 | static void |
5a49b8ac | 4339 | subsym_create_or_replace (char *name, char *value) |
39bec121 TW |
4340 | { |
4341 | int i; | |
4342 | ||
1aea3bb8 | 4343 | for (i = macro_level; i > 0; i--) |
39bec121 TW |
4344 | { |
4345 | if (hash_find (subsym_hash[i], name)) | |
9a736b6b NC |
4346 | { |
4347 | hash_replace (subsym_hash[i], name, value); | |
4348 | return; | |
4349 | } | |
39bec121 TW |
4350 | } |
4351 | if (hash_find (subsym_hash[0], name)) | |
4352 | hash_replace (subsym_hash[0], name, value); | |
4353 | else | |
4354 | hash_insert (subsym_hash[0], name, value); | |
4355 | } | |
4356 | ||
9a736b6b | 4357 | /* Look up the substitution string replacement for the given symbol. |
33b7f697 | 4358 | Start with the innermost macro substitution table given and work |
9a736b6b NC |
4359 | outwards. */ |
4360 | ||
39bec121 | 4361 | static char * |
5a49b8ac | 4362 | subsym_lookup (char *name, int nest_level) |
39bec121 TW |
4363 | { |
4364 | char *value = hash_find (subsym_hash[nest_level], name); | |
4365 | ||
4366 | if (value || nest_level == 0) | |
4367 | return value; | |
4368 | ||
1aea3bb8 | 4369 | return subsym_lookup (name, nest_level - 1); |
39bec121 TW |
4370 | } |
4371 | ||
d0313fb7 | 4372 | /* Do substitution-symbol replacement on the given line (recursively). |
1aea3bb8 | 4373 | return the argument if no substitution was done |
39bec121 TW |
4374 | |
4375 | Also look for built-in functions ($func (arg)) and local labels. | |
4376 | ||
d0313fb7 | 4377 | If FORCED is set, look for forced substitutions of the form ':SYMBOL:'. */ |
9a736b6b | 4378 | |
39bec121 | 4379 | static char * |
5a49b8ac | 4380 | subsym_substitute (char *line, int forced) |
39bec121 | 4381 | { |
d0313fb7 NC |
4382 | /* For each apparent symbol, see if it's a substitution symbol, and if so, |
4383 | replace it in the input. */ | |
9a736b6b NC |
4384 | char *replacement; /* current replacement for LINE. */ |
4385 | char *head; /* Start of line. */ | |
4386 | char *ptr; /* Current examination point. */ | |
4387 | int changed = 0; /* Did we make a substitution? */ | |
4388 | int eval_line = 0; /* Is this line a .eval/.asg statement? */ | |
4389 | int eval_symbol = 0; /* Are we in the middle of the symbol for | |
4390 | .eval/.asg? */ | |
39bec121 TW |
4391 | char *eval_end = NULL; |
4392 | int recurse = 1; | |
4393 | int line_conditional = 0; | |
4394 | char *tmp; | |
4395 | ||
d0313fb7 | 4396 | /* Work with a copy of the input line. */ |
4ec9d7d5 | 4397 | replacement = xstrdup (line); |
39bec121 TW |
4398 | |
4399 | ptr = head = replacement; | |
4400 | ||
d0313fb7 | 4401 | /* Flag lines where we might need to replace a single '=' with two; |
39bec121 | 4402 | GAS uses single '=' to assign macro args values, and possibly other |
d0313fb7 | 4403 | places, so limit what we replace. */ |
1aea3bb8 NC |
4404 | if (strstr (line, ".if") |
4405 | || strstr (line, ".elseif") | |
39bec121 | 4406 | || strstr (line, ".break")) |
f1e7a2c9 | 4407 | line_conditional = 1; |
39bec121 | 4408 | |
d0313fb7 NC |
4409 | /* Watch out for .eval, so that we avoid doing substitution on the |
4410 | symbol being assigned a value. */ | |
39bec121 | 4411 | if (strstr (line, ".eval") || strstr (line, ".asg")) |
1aea3bb8 | 4412 | eval_line = 1; |
39bec121 | 4413 | |
9a736b6b NC |
4414 | /* If it's a macro definition, don't do substitution on the argument |
4415 | names. */ | |
39bec121 TW |
4416 | if (strstr (line, ".macro")) |
4417 | return line; | |
4418 | ||
3076e594 NC |
4419 | unsigned char current_char; |
4420 | while (!is_end_of_line[(current_char = * (unsigned char *) ptr)]) | |
39bec121 | 4421 | { |
d0313fb7 | 4422 | /* Need to update this since LINE may have been modified. */ |
39bec121 | 4423 | if (eval_line) |
1aea3bb8 | 4424 | eval_end = strrchr (ptr, ','); |
39bec121 | 4425 | |
d0313fb7 | 4426 | /* Replace triple double quotes with bounding quote/escapes. */ |
39bec121 | 4427 | if (current_char == '"' && ptr[1] == '"' && ptr[2] == '"') |
9a736b6b NC |
4428 | { |
4429 | ptr[1] = '\\'; | |
4430 | tmp = strstr (ptr + 2, "\"\"\""); | |
4431 | if (tmp) | |
4432 | tmp[0] = '\\'; | |
4433 | changed = 1; | |
4434 | } | |
39bec121 | 4435 | |
d0313fb7 | 4436 | /* Replace a single '=' with a '=='; |
9a736b6b | 4437 | for compatibility with older code only. */ |
1aea3bb8 | 4438 | if (line_conditional && current_char == '=') |
9a736b6b NC |
4439 | { |
4440 | if (ptr[1] == '=') | |
4441 | { | |
4442 | ptr += 2; | |
4443 | continue; | |
4444 | } | |
4445 | *ptr++ = '\0'; | |
29a2809e | 4446 | tmp = concat (head, "==", ptr, (char *) NULL); |
9a736b6b NC |
4447 | /* Continue examining after the '=='. */ |
4448 | ptr = tmp + strlen (head) + 2; | |
4449 | free (replacement); | |
4450 | head = replacement = tmp; | |
4451 | changed = 1; | |
4452 | } | |
39bec121 | 4453 | |
d0313fb7 | 4454 | /* Flag when we've reached the symbol part of .eval/.asg. */ |
39bec121 | 4455 | if (eval_line && ptr >= eval_end) |
9a736b6b | 4456 | eval_symbol = 1; |
39bec121 | 4457 | |
d0313fb7 | 4458 | /* For each apparent symbol, see if it's a substitution symbol, and if |
9a736b6b | 4459 | so, replace it in the input. */ |
39bec121 | 4460 | if ((forced && current_char == ':') |
9a736b6b NC |
4461 | || (!forced && is_name_beginner (current_char))) |
4462 | { | |
4463 | char *name; /* Symbol to be replaced. */ | |
4464 | char *savedp = input_line_pointer; | |
4465 | int c; | |
4466 | char *value = NULL; | |
4467 | char *tail; /* Rest of line after symbol. */ | |
4468 | ||
4469 | /* Skip the colon. */ | |
4470 | if (forced) | |
4471 | ++ptr; | |
4472 | ||
d02603dc NC |
4473 | input_line_pointer = ptr; |
4474 | c = get_symbol_name (&name); | |
9a736b6b NC |
4475 | /* '?' is not normally part of a symbol, but it IS part of a local |
4476 | label. */ | |
4477 | if (c == '?') | |
4478 | { | |
4479 | *input_line_pointer++ = c; | |
4480 | c = *input_line_pointer; | |
4481 | *input_line_pointer = '\0'; | |
4482 | } | |
4483 | /* Avoid infinite recursion; if a symbol shows up a second time for | |
4484 | substitution, leave it as is. */ | |
4485 | if (hash_find (subsym_recurse_hash, name) == NULL) | |
4486 | value = subsym_lookup (name, macro_level); | |
4487 | else | |
4488 | as_warn (_("%s symbol recursion stopped at " | |
4489 | "second appearance of '%s'"), | |
4490 | forced ? "Forced substitution" : "Substitution", name); | |
4491 | ptr = tail = input_line_pointer; | |
4492 | input_line_pointer = savedp; | |
4493 | ||
4494 | /* Check for local labels; replace them with the appropriate | |
4495 | substitution. */ | |
3882b010 | 4496 | if ((*name == '$' && ISDIGIT (name[1]) && name[2] == '\0') |
9a736b6b NC |
4497 | || name[strlen (name) - 1] == '?') |
4498 | { | |
4499 | /* Use an existing identifier for that label if, available, or | |
4500 | create a new, unique identifier. */ | |
4501 | value = hash_find (local_label_hash[macro_level], name); | |
4502 | if (value == NULL) | |
4503 | { | |
4504 | char digit[11]; | |
e1fa0163 | 4505 | char *namecopy = xstrdup (name); |
f1e7a2c9 | 4506 | |
9a736b6b NC |
4507 | value = strcpy (xmalloc (strlen (name) + sizeof (digit) + 1), |
4508 | name); | |
4509 | if (*value != '$') | |
4510 | value[strlen (value) - 1] = '\0'; | |
4511 | sprintf (digit, ".%d", local_label_id++); | |
4512 | strcat (value, digit); | |
4513 | hash_insert (local_label_hash[macro_level], namecopy, value); | |
4514 | } | |
4515 | /* Indicate where to continue looking for substitutions. */ | |
4516 | ptr = tail; | |
4517 | } | |
4518 | /* Check for built-in subsym and math functions. */ | |
4519 | else if (value != NULL && *name == '$') | |
4520 | { | |
4521 | subsym_proc_entry *entry = (subsym_proc_entry *) value; | |
4522 | math_proc_entry *math_entry = hash_find (math_hash, name); | |
4523 | char *arg1, *arg2 = NULL; | |
4524 | ||
4525 | *ptr = c; | |
4526 | if (entry == NULL) | |
4527 | { | |
4528 | as_bad (_("Unrecognized substitution symbol function")); | |
4529 | break; | |
4530 | } | |
4531 | else if (*ptr != '(') | |
4532 | { | |
4533 | as_bad (_("Missing '(' after substitution symbol function")); | |
4534 | break; | |
4535 | } | |
4536 | ++ptr; | |
4537 | if (math_entry != NULL) | |
4538 | { | |
91d6fa6a | 4539 | float farg1, farg2 = 0; |
9a736b6b NC |
4540 | volatile float fresult; |
4541 | ||
91d6fa6a | 4542 | farg1 = (float) strtod (ptr, &ptr); |
9a736b6b NC |
4543 | if (math_entry->nargs == 2) |
4544 | { | |
4545 | if (*ptr++ != ',') | |
4546 | { | |
4547 | as_bad (_("Expecting second argument")); | |
4548 | break; | |
4549 | } | |
91d6fa6a | 4550 | farg2 = (float) strtod (ptr, &ptr); |
9a736b6b | 4551 | } |
91d6fa6a | 4552 | fresult = (*math_entry->proc) (farg1, farg2); |
325801bd | 4553 | value = XNEWVEC (char, 128); |
9a736b6b NC |
4554 | if (math_entry->int_return) |
4555 | sprintf (value, "%d", (int) fresult); | |
4556 | else | |
4557 | sprintf (value, "%f", fresult); | |
4558 | if (*ptr++ != ')') | |
4559 | { | |
4560 | as_bad (_("Extra junk in function call, expecting ')'")); | |
4561 | break; | |
4562 | } | |
4563 | /* Don't bother recursing; the replacement isn't a | |
4564 | symbol. */ | |
4565 | recurse = 0; | |
4566 | } | |
4567 | else | |
4568 | { | |
4569 | int val; | |
4570 | int arg_type[2] = { *ptr == '"' , 0 }; | |
4571 | int ismember = !strcmp (entry->name, "$ismember"); | |
f1e7a2c9 | 4572 | |
9a736b6b NC |
4573 | /* Parse one or two args, which must be a substitution |
4574 | symbol, string or a character-string constant. */ | |
4575 | /* For all functions, a string or substitution symbol may be | |
4576 | used, with the following exceptions: | |
4577 | firstch/lastch: 2nd arg must be character constant | |
4578 | ismember: both args must be substitution symbols. */ | |
4579 | ptr = subsym_get_arg (ptr, ",)", &arg1, ismember); | |
4580 | if (!arg1) | |
4581 | break; | |
4582 | if (entry->nargs == 2) | |
4583 | { | |
4584 | if (*ptr++ != ',') | |
4585 | { | |
4586 | as_bad (_("Function expects two arguments")); | |
4587 | break; | |
4588 | } | |
4589 | /* Character constants are converted to numerics | |
4590 | by the preprocessor. */ | |
3882b010 | 4591 | arg_type[1] = (ISDIGIT (*ptr)) ? 2 : (*ptr == '"'); |
9a736b6b NC |
4592 | ptr = subsym_get_arg (ptr, ")", &arg2, ismember); |
4593 | } | |
4594 | /* Args checking. */ | |
4595 | if ((!strcmp (entry->name, "$firstch") | |
4596 | || !strcmp (entry->name, "$lastch")) | |
4597 | && arg_type[1] != 2) | |
4598 | { | |
4599 | as_bad (_("Expecting character constant argument")); | |
4600 | break; | |
4601 | } | |
4602 | if (ismember | |
4603 | && (arg_type[0] != 0 || arg_type[1] != 0)) | |
4604 | { | |
4605 | as_bad (_("Both arguments must be substitution symbols")); | |
4606 | break; | |
4607 | } | |
4608 | if (*ptr++ != ')') | |
4609 | { | |
4610 | as_bad (_("Extra junk in function call, expecting ')'")); | |
4611 | break; | |
4612 | } | |
4613 | val = (*entry->proc) (arg1, arg2); | |
325801bd | 4614 | value = XNEWVEC (char, 64); |
9a736b6b NC |
4615 | sprintf (value, "%d", val); |
4616 | } | |
4617 | /* Fix things up to replace the entire expression, not just the | |
4618 | function name. */ | |
4619 | tail = ptr; | |
4620 | c = *tail; | |
4621 | } | |
4622 | ||
4623 | if (value != NULL && !eval_symbol) | |
4624 | { | |
4625 | /* Replace the symbol with its string replacement and | |
4626 | continue. Recursively replace VALUE until either no | |
4627 | substitutions are performed, or a substitution that has been | |
4628 | previously made is encountered again. | |
4629 | ||
e1fa0163 | 4630 | Put the symbol into the recursion hash table so we only |
9a736b6b NC |
4631 | try to replace a symbol once. */ |
4632 | if (recurse) | |
4633 | { | |
4634 | hash_insert (subsym_recurse_hash, name, name); | |
4635 | value = subsym_substitute (value, macro_level > 0); | |
818236e5 | 4636 | hash_delete (subsym_recurse_hash, name, FALSE); |
9a736b6b NC |
4637 | } |
4638 | ||
4639 | /* Temporarily zero-terminate where the symbol started. */ | |
4640 | *name = 0; | |
4641 | if (forced) | |
4642 | { | |
4643 | if (c == '(') | |
4644 | { | |
4645 | /* Subscripted substitution symbol -- use just the | |
4646 | indicated portion of the string; the description | |
33b7f697 | 4647 | kinda indicates that forced substitution is not |
9a736b6b NC |
4648 | supposed to be recursive, but I'm not sure. */ |
4649 | unsigned beg, len = 1; /* default to a single char */ | |
4ec9d7d5 | 4650 | char *newval = xstrdup (value); |
9a736b6b NC |
4651 | |
4652 | savedp = input_line_pointer; | |
4653 | input_line_pointer = tail + 1; | |
4654 | beg = get_absolute_expression (); | |
4655 | if (beg < 1) | |
4656 | { | |
4657 | as_bad (_("Invalid subscript (use 1 to %d)"), | |
8ad7c533 | 4658 | (int) strlen (value)); |
9a736b6b NC |
4659 | break; |
4660 | } | |
4661 | if (*input_line_pointer == ',') | |
4662 | { | |
4663 | ++input_line_pointer; | |
4664 | len = get_absolute_expression (); | |
4665 | if (beg + len > strlen (value)) | |
4666 | { | |
33eaf5de | 4667 | as_bad (_("Invalid length (use 0 to %d)"), |
8ad7c533 | 4668 | (int) strlen (value) - beg); |
9a736b6b NC |
4669 | break; |
4670 | } | |
4671 | } | |
4672 | newval += beg - 1; | |
4673 | newval[len] = 0; | |
4674 | tail = input_line_pointer; | |
4675 | if (*tail++ != ')') | |
4676 | { | |
4677 | as_bad (_("Missing ')' in subscripted substitution " | |
4678 | "symbol expression")); | |
4679 | break; | |
4680 | } | |
4681 | c = *tail; | |
4682 | input_line_pointer = savedp; | |
4683 | ||
4684 | value = newval; | |
4685 | } | |
4686 | name[-1] = 0; | |
4687 | } | |
4688 | tmp = xmalloc (strlen (head) + strlen (value) + | |
4689 | strlen (tail + 1) + 2); | |
4690 | strcpy (tmp, head); | |
4691 | strcat (tmp, value); | |
4692 | /* Make sure forced substitutions are properly terminated. */ | |
4693 | if (forced) | |
4694 | { | |
4695 | if (c != ':') | |
4696 | { | |
4697 | as_bad (_("Missing forced substitution terminator ':'")); | |
4698 | break; | |
4699 | } | |
4700 | ++tail; | |
9a736b6b NC |
4701 | } |
4702 | else | |
4703 | /* Restore the character after the symbol end. */ | |
4704 | *tail = c; | |
4705 | strcat (tmp, tail); | |
4706 | /* Continue examining after the replacement value. */ | |
4707 | ptr = tmp + strlen (head) + strlen (value); | |
4708 | free (replacement); | |
4709 | head = replacement = tmp; | |
4710 | changed = 1; | |
4711 | } | |
4712 | else | |
4713 | *ptr = c; | |
4714 | } | |
39bec121 | 4715 | else |
9a736b6b NC |
4716 | { |
4717 | ++ptr; | |
4718 | } | |
39bec121 TW |
4719 | } |
4720 | ||
4721 | if (changed) | |
4722 | return replacement; | |
4723 | else | |
4724 | return line; | |
4725 | } | |
4726 | ||
1aea3bb8 | 4727 | /* We use this to handle substitution symbols |
39bec121 TW |
4728 | hijack input_line_pointer, replacing it with our substituted string. |
4729 | ||
4730 | .sslist should enable listing the line after replacements are made... | |
4731 | ||
d0313fb7 | 4732 | returns the new buffer limit. */ |
9a736b6b | 4733 | |
39bec121 | 4734 | void |
5a49b8ac | 4735 | tic54x_start_line_hook (void) |
39bec121 TW |
4736 | { |
4737 | char *line, *endp; | |
4738 | char *replacement = NULL; | |
4739 | ||
d0313fb7 | 4740 | /* Work with a copy of the input line, including EOL char. */ |
ded12894 AM |
4741 | for (endp = input_line_pointer; *endp != 0; ) |
4742 | if (is_end_of_line[(unsigned char) *endp++]) | |
4743 | break; | |
3076e594 | 4744 | |
29a2809e | 4745 | line = xmemdup0 (input_line_pointer, endp - input_line_pointer); |
39bec121 | 4746 | |
d0313fb7 | 4747 | /* Scan ahead for parallel insns. */ |
6e210b41 | 4748 | parallel_on_next_line_hint = next_line_shows_parallel (endp); |
39bec121 | 4749 | |
d0313fb7 | 4750 | /* If within a macro, first process forced replacements. */ |
39bec121 TW |
4751 | if (macro_level > 0) |
4752 | replacement = subsym_substitute (line, 1); | |
4753 | else | |
4754 | replacement = line; | |
4755 | replacement = subsym_substitute (replacement, 0); | |
4756 | ||
4757 | if (replacement != line) | |
4758 | { | |
4759 | char *tmp = replacement; | |
9a736b6b | 4760 | char *comment = strchr (replacement, ';'); |
1aea3bb8 | 4761 | char endc = replacement[strlen (replacement) - 1]; |
39bec121 | 4762 | |
d0313fb7 | 4763 | /* Clean up the replacement; we'd prefer to have this done by the |
9a736b6b NC |
4764 | standard preprocessing equipment (maybe do_scrub_chars?) |
4765 | but for now, do a quick-and-dirty. */ | |
39bec121 | 4766 | if (comment != NULL) |
9a736b6b NC |
4767 | { |
4768 | comment[0] = endc; | |
4769 | comment[1] = 0; | |
4770 | --comment; | |
4771 | } | |
1aea3bb8 | 4772 | else |
9a736b6b | 4773 | comment = replacement + strlen (replacement) - 1; |
39bec121 | 4774 | |
d0313fb7 | 4775 | /* Trim trailing whitespace. */ |
3882b010 | 4776 | while (ISSPACE (*comment)) |
9a736b6b NC |
4777 | { |
4778 | comment[0] = endc; | |
4779 | comment[1] = 0; | |
4780 | --comment; | |
4781 | } | |
39bec121 | 4782 | |
d0313fb7 | 4783 | /* Compact leading whitespace. */ |
3882b010 | 4784 | while (ISSPACE (tmp[0]) && ISSPACE (tmp[1])) |
9a736b6b | 4785 | ++tmp; |
39bec121 TW |
4786 | |
4787 | input_line_pointer = endp; | |
4788 | input_scrub_insert_line (tmp); | |
4789 | free (replacement); | |
4790 | free (line); | |
d0313fb7 | 4791 | /* Keep track of whether we've done a substitution. */ |
39bec121 TW |
4792 | substitution_line = 1; |
4793 | } | |
4794 | else | |
4795 | { | |
d0313fb7 | 4796 | /* No change. */ |
39bec121 TW |
4797 | free (line); |
4798 | substitution_line = 0; | |
4799 | } | |
4800 | } | |
4801 | ||
4802 | /* This is the guts of the machine-dependent assembler. STR points to a | |
4803 | machine dependent instruction. This function is supposed to emit | |
d0313fb7 | 4804 | the frags/bytes it assembles to. */ |
39bec121 | 4805 | void |
5a49b8ac | 4806 | md_assemble (char *line) |
39bec121 TW |
4807 | { |
4808 | static int repeat_slot = 0; | |
9a736b6b | 4809 | static int delay_slots = 0; /* How many delay slots left to fill? */ |
39bec121 TW |
4810 | static int is_parallel = 0; |
4811 | static tic54x_insn insn; | |
4812 | char *lptr; | |
4813 | char *savedp = input_line_pointer; | |
4814 | int c; | |
4815 | ||
4816 | input_line_pointer = line; | |
d02603dc | 4817 | c = get_symbol_name (&line); |
39bec121 TW |
4818 | |
4819 | if (cpu == VNONE) | |
4820 | cpu = V542; | |
4821 | if (address_mode_needs_set) | |
4822 | { | |
4823 | set_address_mode (amode); | |
4824 | address_mode_needs_set = 0; | |
4825 | } | |
4826 | if (cpu_needs_set) | |
4827 | { | |
4828 | set_cpu (cpu); | |
4829 | cpu_needs_set = 0; | |
4830 | } | |
4831 | assembly_begun = 1; | |
4832 | ||
4833 | if (is_parallel) | |
4834 | { | |
4835 | is_parallel = 0; | |
4836 | ||
4837 | strcpy (insn.parmnemonic, line); | |
4838 | lptr = input_line_pointer; | |
4839 | *lptr = c; | |
4840 | input_line_pointer = savedp; | |
4841 | ||
4842 | if (tic54x_parse_parallel_insn_lastline (&insn, lptr)) | |
9a736b6b NC |
4843 | { |
4844 | int words = build_insn (&insn); | |
4845 | ||
4846 | if (delay_slots != 0) | |
4847 | { | |
4848 | if (words > delay_slots) | |
4849 | { | |
992a06ee AM |
4850 | as_bad (ngettext ("Instruction does not fit in available " |
4851 | "delay slots (%d-word insn, %d slot left)", | |
4852 | "Instruction does not fit in available " | |
4853 | "delay slots (%d-word insn, %d slots left)", | |
4854 | delay_slots), | |
1aea3bb8 | 4855 | words, delay_slots); |
9a736b6b NC |
4856 | delay_slots = 0; |
4857 | return; | |
4858 | } | |
4859 | delay_slots -= words; | |
4860 | } | |
4861 | } | |
39bec121 TW |
4862 | return; |
4863 | } | |
4864 | ||
4865 | memset (&insn, 0, sizeof (insn)); | |
4866 | strcpy (insn.mnemonic, line); | |
4867 | lptr = input_line_pointer; | |
4868 | *lptr = c; | |
4869 | input_line_pointer = savedp; | |
1aea3bb8 | 4870 | |
39bec121 TW |
4871 | /* See if this line is part of a parallel instruction; if so, either this |
4872 | line or the next line will have the "||" specifier preceding the | |
d0313fb7 | 4873 | mnemonic, and we look for it in the parallel insn hash table. */ |
39bec121 TW |
4874 | if (strstr (line, "||") != NULL || parallel_on_next_line_hint) |
4875 | { | |
4876 | char *tmp = strstr (line, "||"); | |
4877 | if (tmp != NULL) | |
9a736b6b | 4878 | *tmp = '\0'; |
39bec121 TW |
4879 | |
4880 | if (tic54x_parse_parallel_insn_firstline (&insn, lptr)) | |
9a736b6b NC |
4881 | { |
4882 | is_parallel = 1; | |
4883 | /* If the parallel part is on the same line, process it now, | |
4884 | otherwise let the assembler pick up the next line for us. */ | |
4885 | if (tmp != NULL) | |
4886 | { | |
3882b010 | 4887 | while (ISSPACE (tmp[2])) |
9a736b6b NC |
4888 | ++tmp; |
4889 | md_assemble (tmp + 2); | |
4890 | } | |
4891 | } | |
39bec121 | 4892 | else |
9a736b6b NC |
4893 | { |
4894 | as_bad (_("Unrecognized parallel instruction '%s'"), line); | |
4895 | } | |
39bec121 TW |
4896 | return; |
4897 | } | |
4898 | ||
4899 | if (tic54x_parse_insn (&insn, lptr)) | |
4900 | { | |
4901 | int words; | |
4902 | ||
1aea3bb8 | 4903 | if ((insn.tm->flags & FL_LP) |
9a736b6b NC |
4904 | && cpu != V545LP && cpu != V546LP) |
4905 | { | |
4906 | as_bad (_("Instruction '%s' requires an LP cpu version"), | |
4907 | insn.tm->name); | |
4908 | return; | |
4909 | } | |
1aea3bb8 | 4910 | if ((insn.tm->flags & FL_FAR) |
9a736b6b NC |
4911 | && amode != far_mode) |
4912 | { | |
4913 | as_bad (_("Instruction '%s' requires far mode addressing"), | |
4914 | insn.tm->name); | |
4915 | return; | |
4916 | } | |
39bec121 TW |
4917 | |
4918 | words = build_insn (&insn); | |
4919 | ||
d0313fb7 | 4920 | /* Is this instruction in a delay slot? */ |
39bec121 | 4921 | if (delay_slots) |
9a736b6b NC |
4922 | { |
4923 | if (words > delay_slots) | |
4924 | { | |
992a06ee AM |
4925 | as_warn (ngettext ("Instruction does not fit in available " |
4926 | "delay slots (%d-word insn, %d slot left). " | |
4927 | "Resulting behavior is undefined.", | |
4928 | "Instruction does not fit in available " | |
4929 | "delay slots (%d-word insn, %d slots left). " | |
4930 | "Resulting behavior is undefined.", | |
4931 | delay_slots), | |
9a736b6b NC |
4932 | words, delay_slots); |
4933 | delay_slots = 0; | |
4934 | return; | |
4935 | } | |
4936 | /* Branches in delay slots are not allowed. */ | |
4937 | if (insn.tm->flags & FL_BMASK) | |
4938 | { | |
4939 | as_warn (_("Instructions which cause PC discontinuity are not " | |
4940 | "allowed in a delay slot. " | |
4941 | "Resulting behavior is undefined.")); | |
4942 | } | |
4943 | delay_slots -= words; | |
4944 | } | |
4945 | ||
4946 | /* Is this instruction the target of a repeat? */ | |
39bec121 | 4947 | if (repeat_slot) |
9a736b6b NC |
4948 | { |
4949 | if (insn.tm->flags & FL_NR) | |
4950 | as_warn (_("'%s' is not repeatable. " | |
4951 | "Resulting behavior is undefined."), | |
4952 | insn.tm->name); | |
4953 | else if (insn.is_lkaddr) | |
4954 | as_warn (_("Instructions using long offset modifiers or absolute " | |
4955 | "addresses are not repeatable. " | |
4956 | "Resulting behavior is undefined.")); | |
4957 | repeat_slot = 0; | |
4958 | } | |
1aea3bb8 | 4959 | |
d0313fb7 | 4960 | /* Make sure we check the target of a repeat instruction. */ |
39bec121 | 4961 | if (insn.tm->flags & B_REPEAT) |
9a736b6b NC |
4962 | { |
4963 | repeat_slot = 1; | |
4964 | /* FIXME -- warn if repeat_slot == 1 at EOF. */ | |
4965 | } | |
d0313fb7 | 4966 | /* Make sure we check our delay slots for validity. */ |
39bec121 | 4967 | if (insn.tm->flags & FL_DELAY) |
9a736b6b NC |
4968 | { |
4969 | delay_slots = 2; | |
4970 | /* FIXME -- warn if delay_slots != 0 at EOF. */ | |
4971 | } | |
39bec121 TW |
4972 | } |
4973 | } | |
4974 | ||
4975 | /* Do a final adjustment on the symbol table; in this case, make sure we have | |
d0313fb7 | 4976 | a ".file" symbol. */ |
9a736b6b | 4977 | |
39bec121 | 4978 | void |
5a49b8ac | 4979 | tic54x_adjust_symtab (void) |
39bec121 TW |
4980 | { |
4981 | if (symbol_rootP == NULL | |
4982 | || S_GET_STORAGE_CLASS (symbol_rootP) != C_FILE) | |
4983 | { | |
39bec121 | 4984 | unsigned lineno; |
3b4dbbbf | 4985 | const char * filename = as_where (&lineno); |
5519f6ea | 4986 | c_dot_file_symbol (filename, 0); |
39bec121 TW |
4987 | } |
4988 | } | |
4989 | ||
4990 | /* In order to get gas to ignore any | chars at the start of a line, | |
1aea3bb8 | 4991 | this function returns true if a | is found in a line. |
9a736b6b NC |
4992 | This lets us process parallel instructions, which span two lines. */ |
4993 | ||
39bec121 TW |
4994 | int |
4995 | tic54x_unrecognized_line (int c) | |
4996 | { | |
4997 | return c == PARALLEL_SEPARATOR; | |
4998 | } | |
4999 | ||
5000 | /* Watch for local labels of the form $[0-9] and [_a-zA-Z][_a-zA-Z0-9]*? | |
5001 | Encode their names so that only we see them and can map them to the | |
5002 | appropriate places. | |
5003 | FIXME -- obviously this isn't done yet. These locals still show up in the | |
d0313fb7 | 5004 | symbol table. */ |
39bec121 | 5005 | void |
5a49b8ac | 5006 | tic54x_define_label (symbolS *sym) |
39bec121 | 5007 | { |
d0313fb7 | 5008 | /* Just in case we need this later; note that this is not necessarily the |
1aea3bb8 | 5009 | same thing as line_label... |
39bec121 TW |
5010 | When aligning or assigning labels to fields, sometimes the label is |
5011 | assigned other than the address at which the label appears. | |
5012 | FIXME -- is this really needed? I think all the proper label assignment | |
d0313fb7 | 5013 | is done in tic54x_cons. */ |
39bec121 TW |
5014 | last_label_seen = sym; |
5015 | } | |
5016 | ||
d0313fb7 | 5017 | /* Try to parse something that normal parsing failed at. */ |
9a736b6b | 5018 | |
39bec121 | 5019 | symbolS * |
5a49b8ac | 5020 | tic54x_undefined_symbol (char *name) |
39bec121 | 5021 | { |
3d207518 | 5022 | tic54x_symbol *sym; |
39bec121 | 5023 | |
d0313fb7 | 5024 | /* Not sure how to handle predefined symbols. */ |
3d207518 TS |
5025 | if ((sym = (tic54x_symbol *) hash_find (cc_hash, name)) != NULL || |
5026 | (sym = (tic54x_symbol *) hash_find (cc2_hash, name)) != NULL || | |
5027 | (sym = (tic54x_symbol *) hash_find (cc3_hash, name)) != NULL || | |
5028 | (sym = (tic54x_symbol *) hash_find (misc_symbol_hash, name)) != NULL || | |
5029 | (sym = (tic54x_symbol *) hash_find (sbit_hash, name)) != NULL) | |
39bec121 | 5030 | { |
1aea3bb8 | 5031 | return symbol_new (name, reg_section, |
9a736b6b NC |
5032 | (valueT) sym->value, |
5033 | &zero_address_frag); | |
39bec121 TW |
5034 | } |
5035 | ||
3d207518 TS |
5036 | if ((sym = (tic54x_symbol *) hash_find (reg_hash, name)) != NULL || |
5037 | (sym = (tic54x_symbol *) hash_find (mmreg_hash, name)) != NULL || | |
39bec121 TW |
5038 | !strcasecmp (name, "a") || !strcasecmp (name, "b")) |
5039 | { | |
1aea3bb8 | 5040 | return symbol_new (name, reg_section, |
9a736b6b NC |
5041 | (valueT) sym ? sym->value : 0, |
5042 | &zero_address_frag); | |
39bec121 TW |
5043 | } |
5044 | ||
5045 | return NULL; | |
5046 | } | |
5047 | ||
d0313fb7 NC |
5048 | /* Parse a name in an expression before the expression parser takes a stab at |
5049 | it. */ | |
9a736b6b | 5050 | |
39bec121 | 5051 | int |
5a49b8ac | 5052 | tic54x_parse_name (char *name ATTRIBUTE_UNUSED, |
91d6fa6a | 5053 | expressionS *expn ATTRIBUTE_UNUSED) |
39bec121 | 5054 | { |
39bec121 TW |
5055 | return 0; |
5056 | } | |
5057 | ||
6d4af3c2 | 5058 | const char * |
499ac353 NC |
5059 | md_atof (int type, char *literalP, int *sizeP) |
5060 | { | |
1aea3bb8 NC |
5061 | /* Target data is little-endian, but floats are stored |
5062 | big-"word"ian. ugh. */ | |
499ac353 | 5063 | return ieee_md_atof (type, literalP, sizeP, TRUE); |
39bec121 TW |
5064 | } |
5065 | ||
5066 | arelent * | |
5a49b8ac | 5067 | tc_gen_reloc (asection *section, fixS *fixP) |
39bec121 TW |
5068 | { |
5069 | arelent *rel; | |
5070 | bfd_reloc_code_real_type code = fixP->fx_r_type; | |
5071 | asymbol *sym = symbol_get_bfdsym (fixP->fx_addsy); | |
5072 | ||
325801bd TS |
5073 | rel = XNEW (arelent); |
5074 | rel->sym_ptr_ptr = XNEW (asymbol *); | |
39bec121 | 5075 | *rel->sym_ptr_ptr = sym; |
9a736b6b | 5076 | /* We assume that all rel->address are host byte offsets. */ |
39bec121 TW |
5077 | rel->address = fixP->fx_frag->fr_address + fixP->fx_where; |
5078 | rel->address /= OCTETS_PER_BYTE; | |
5079 | rel->howto = bfd_reloc_type_lookup (stdoutput, code); | |
5080 | if (!strcmp (sym->name, section->name)) | |
5081 | rel->howto += HOWTO_BANK; | |
5082 | ||
5083 | if (!rel->howto) | |
5084 | { | |
5085 | const char *name = S_GET_NAME (fixP->fx_addsy); | |
5086 | if (name == NULL) | |
5087 | name = "<unknown>"; | |
1aea3bb8 | 5088 | as_fatal ("Cannot generate relocation type for symbol %s, code %s", |
9a736b6b | 5089 | name, bfd_get_reloc_code_name (code)); |
39bec121 TW |
5090 | return NULL; |
5091 | } | |
5092 | return rel; | |
5093 | } | |
5094 | ||
d0313fb7 | 5095 | /* Handle cons expressions. */ |
9a736b6b | 5096 | |
39bec121 | 5097 | void |
62ebcb5c AM |
5098 | tic54x_cons_fix_new (fragS *frag, int where, int octets, expressionS *expn, |
5099 | bfd_reloc_code_real_type r) | |
39bec121 | 5100 | { |
39bec121 TW |
5101 | switch (octets) |
5102 | { | |
5103 | default: | |
5104 | as_bad (_("Unsupported relocation size %d"), octets); | |
5105 | r = BFD_RELOC_TIC54X_16_OF_23; | |
5106 | break; | |
5107 | case 2: | |
5108 | r = BFD_RELOC_TIC54X_16_OF_23; | |
5109 | break; | |
5110 | case 4: | |
d0313fb7 | 5111 | /* TI assembler always uses this, regardless of addressing mode. */ |
39bec121 | 5112 | if (emitting_long) |
9a736b6b | 5113 | r = BFD_RELOC_TIC54X_23; |
39bec121 | 5114 | else |
9a736b6b NC |
5115 | /* We never want to directly generate this; this is provided for |
5116 | stabs support only. */ | |
5117 | r = BFD_RELOC_32; | |
39bec121 TW |
5118 | break; |
5119 | } | |
91d6fa6a | 5120 | fix_new_exp (frag, where, octets, expn, 0, r); |
39bec121 TW |
5121 | } |
5122 | ||
1aea3bb8 | 5123 | /* Attempt to simplify or even eliminate a fixup. |
39bec121 TW |
5124 | To indicate that a fixup has been eliminated, set fixP->fx_done. |
5125 | ||
d0313fb7 | 5126 | If fixp->fx_addsy is non-NULL, we'll have to generate a reloc entry. */ |
9a736b6b | 5127 | |
94f592af | 5128 | void |
5a49b8ac | 5129 | md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED) |
39bec121 TW |
5130 | { |
5131 | char *buf = fixP->fx_where + fixP->fx_frag->fr_literal; | |
94f592af | 5132 | valueT val = * valP; |
39bec121 TW |
5133 | |
5134 | switch (fixP->fx_r_type) | |
5135 | { | |
5136 | default: | |
5137 | as_fatal ("Bad relocation type: 0x%02x", fixP->fx_r_type); | |
94f592af | 5138 | return; |
39bec121 TW |
5139 | case BFD_RELOC_TIC54X_MS7_OF_23: |
5140 | val = (val >> 16) & 0x7F; | |
d0313fb7 | 5141 | /* Fall through. */ |
39bec121 TW |
5142 | case BFD_RELOC_TIC54X_16_OF_23: |
5143 | case BFD_RELOC_16: | |
5144 | bfd_put_16 (stdoutput, val, buf); | |
d0313fb7 | 5145 | /* Indicate what we're actually writing, so that we don't get warnings |
9a736b6b | 5146 | about exceeding available space. */ |
39bec121 TW |
5147 | *valP = val & 0xFFFF; |
5148 | break; | |
5149 | case BFD_RELOC_TIC54X_PARTLS7: | |
5150 | bfd_put_16 (stdoutput, | |
9a736b6b NC |
5151 | (bfd_get_16 (stdoutput, buf) & 0xFF80) | (val & 0x7F), |
5152 | buf); | |
d0313fb7 | 5153 | /* Indicate what we're actually writing, so that we don't get warnings |
9a736b6b | 5154 | about exceeding available space. */ |
39bec121 TW |
5155 | *valP = val & 0x7F; |
5156 | break; | |
5157 | case BFD_RELOC_TIC54X_PARTMS9: | |
5158 | /* TI assembler doesn't shift its encoding for relocatable files, and is | |
9a736b6b | 5159 | thus incompatible with this implementation's relocatable files. */ |
1aea3bb8 | 5160 | bfd_put_16 (stdoutput, |
9a736b6b NC |
5161 | (bfd_get_16 (stdoutput, buf) & 0xFE00) | (val >> 7), |
5162 | buf); | |
39bec121 TW |
5163 | break; |
5164 | case BFD_RELOC_32: | |
5165 | case BFD_RELOC_TIC54X_23: | |
5166 | bfd_put_32 (stdoutput, | |
9a736b6b NC |
5167 | (bfd_get_32 (stdoutput, buf) & 0xFF800000) | val, |
5168 | buf); | |
39bec121 TW |
5169 | break; |
5170 | } | |
5171 | ||
94f592af NC |
5172 | if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0) |
5173 | fixP->fx_done = 1; | |
39bec121 TW |
5174 | } |
5175 | ||
1aea3bb8 | 5176 | /* This is our chance to record section alignment |
d0313fb7 | 5177 | don't need to do anything here, since BFD does the proper encoding. */ |
9a736b6b | 5178 | |
39bec121 | 5179 | valueT |
5a49b8ac | 5180 | md_section_align (segT segment ATTRIBUTE_UNUSED, valueT section_size) |
39bec121 TW |
5181 | { |
5182 | return section_size; | |
5183 | } | |
5184 | ||
5185 | long | |
5a49b8ac | 5186 | md_pcrel_from (fixS *fixP ATTRIBUTE_UNUSED) |
39bec121 TW |
5187 | { |
5188 | return 0; | |
5189 | } | |
5190 | ||
9a736b6b NC |
5191 | /* Mostly little-endian, but longwords (4 octets) get MS word stored |
5192 | first. */ | |
39bec121 | 5193 | |
39bec121 | 5194 | void |
5a49b8ac | 5195 | tic54x_number_to_chars (char *buf, valueT val, int n) |
39bec121 TW |
5196 | { |
5197 | if (n != 4) | |
9a736b6b | 5198 | number_to_chars_littleendian (buf, val, n); |
39bec121 TW |
5199 | else |
5200 | { | |
1aea3bb8 NC |
5201 | number_to_chars_littleendian (buf , val >> 16 , 2); |
5202 | number_to_chars_littleendian (buf + 2, val & 0xFFFF, 2); | |
39bec121 TW |
5203 | } |
5204 | } | |
5205 | ||
1aea3bb8 | 5206 | int |
5a49b8ac AM |
5207 | tic54x_estimate_size_before_relax (fragS *frag ATTRIBUTE_UNUSED, |
5208 | segT seg ATTRIBUTE_UNUSED) | |
39bec121 TW |
5209 | { |
5210 | return 0; | |
5211 | } | |
5212 | ||
d0313fb7 NC |
5213 | /* We use this to handle bit allocations which we couldn't handle before due |
5214 | to symbols being in different frags. return number of octets added. */ | |
9a736b6b | 5215 | |
1aea3bb8 | 5216 | int |
5a49b8ac | 5217 | tic54x_relax_frag (fragS *frag, long stretch ATTRIBUTE_UNUSED) |
39bec121 TW |
5218 | { |
5219 | symbolS *sym = frag->fr_symbol; | |
5220 | int growth = 0; | |
5221 | int i; | |
5222 | ||
5223 | if (sym != NULL) | |
5224 | { | |
1aea3bb8 | 5225 | struct bit_info *bi = (struct bit_info *) frag->fr_opcode; |
39bec121 TW |
5226 | int bit_offset = frag_bit_offset (frag_prev (frag, bi->seg), bi->seg); |
5227 | int size = S_GET_VALUE (sym); | |
5228 | fragS *prev_frag = bit_offset_frag (frag_prev (frag, bi->seg), bi->seg); | |
5229 | int available = 16 - bit_offset; | |
5230 | ||
5231 | if (symbol_get_frag (sym) != &zero_address_frag | |
9a736b6b NC |
5232 | || S_IS_COMMON (sym) |
5233 | || !S_IS_DEFINED (sym)) | |
5234 | as_bad_where (frag->fr_file, frag->fr_line, | |
5235 | _("non-absolute value used with .space/.bes")); | |
39bec121 TW |
5236 | |
5237 | if (size < 0) | |
9a736b6b NC |
5238 | { |
5239 | as_warn (_("negative value ignored in %s"), | |
5240 | bi->type == TYPE_SPACE ? ".space" : | |
5241 | bi->type == TYPE_BES ? ".bes" : ".field"); | |
5242 | growth = 0; | |
5243 | frag->tc_frag_data = frag->fr_fix = 0; | |
5244 | return 0; | |
5245 | } | |
39bec121 TW |
5246 | |
5247 | if (bi->type == TYPE_FIELD) | |
9a736b6b NC |
5248 | { |
5249 | /* Bit fields of 16 or larger will have already been handled. */ | |
5250 | if (bit_offset != 0 && available >= size) | |
5251 | { | |
5252 | char *p = prev_frag->fr_literal; | |
f1e7a2c9 | 5253 | |
9a736b6b NC |
5254 | valueT value = bi->value; |
5255 | value <<= available - size; | |
5256 | value |= ((unsigned short) p[1] << 8) | p[0]; | |
5257 | md_number_to_chars (p, value, 2); | |
5258 | if ((prev_frag->tc_frag_data += size) == 16) | |
5259 | prev_frag->tc_frag_data = 0; | |
5260 | if (bi->sym) | |
5261 | symbol_set_frag (bi->sym, prev_frag); | |
5262 | /* This frag is no longer used. */ | |
5263 | growth = -frag->fr_fix; | |
5264 | frag->fr_fix = 0; | |
5265 | frag->tc_frag_data = 0; | |
5266 | } | |
5267 | else | |
5268 | { | |
5269 | char *p = frag->fr_literal; | |
f1e7a2c9 | 5270 | |
9a736b6b NC |
5271 | valueT value = bi->value << (16 - size); |
5272 | md_number_to_chars (p, value, 2); | |
5273 | if ((frag->tc_frag_data = size) == 16) | |
5274 | frag->tc_frag_data = 0; | |
5275 | growth = 0; | |
5276 | } | |
5277 | } | |
39bec121 | 5278 | else |
9a736b6b NC |
5279 | { |
5280 | if (bit_offset != 0 && bit_offset < 16) | |
5281 | { | |
5282 | if (available >= size) | |
5283 | { | |
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 | goto getout; | |
5293 | } | |
5294 | if (bi->type == TYPE_SPACE && bi->sym) | |
5295 | symbol_set_frag (bi->sym, prev_frag); | |
5296 | size -= available; | |
5297 | } | |
5298 | growth = (size + 15) / 16 * OCTETS_PER_BYTE - frag->fr_fix; | |
5299 | for (i = 0; i < growth; i++) | |
5300 | frag->fr_literal[i] = 0; | |
5301 | frag->fr_fix = growth; | |
5302 | frag->tc_frag_data = size % 16; | |
5303 | /* Make sure any BES label points to the LAST word allocated. */ | |
5304 | if (bi->type == TYPE_BES && bi->sym) | |
5305 | S_SET_VALUE (bi->sym, frag->fr_fix / OCTETS_PER_BYTE - 1); | |
5306 | } | |
39bec121 TW |
5307 | getout: |
5308 | frag->fr_symbol = 0; | |
5309 | frag->fr_opcode = 0; | |
1aea3bb8 | 5310 | free ((void *) bi); |
39bec121 TW |
5311 | } |
5312 | return growth; | |
5313 | } | |
5314 | ||
5315 | void | |
5a49b8ac AM |
5316 | tic54x_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, |
5317 | segT seg ATTRIBUTE_UNUSED, | |
5318 | fragS *frag) | |
39bec121 | 5319 | { |
d0313fb7 | 5320 | /* Offset is in bytes. */ |
1aea3bb8 | 5321 | frag->fr_offset = (frag->fr_next->fr_address |
9a736b6b NC |
5322 | - frag->fr_address |
5323 | - frag->fr_fix) / frag->fr_var; | |
39bec121 TW |
5324 | if (frag->fr_offset < 0) |
5325 | { | |
5326 | as_bad_where (frag->fr_file, frag->fr_line, | |
9a736b6b NC |
5327 | _("attempt to .space/.bes backwards? (%ld)"), |
5328 | (long) frag->fr_offset); | |
39bec121 TW |
5329 | } |
5330 | frag->fr_type = rs_space; | |
5331 | } | |
5332 | ||
d0313fb7 | 5333 | /* We need to avoid having labels defined for certain directives/pseudo-ops |
39bec121 TW |
5334 | since once the label is defined, it's in the symbol table for good. TI |
5335 | syntax puts the symbol *before* the pseudo (which is kinda like MRI syntax, | |
5336 | I guess, except I've never seen a definition of MRI syntax). | |
5337 | ||
d0313fb7 | 5338 | Don't allow labels to start with '.' */ |
9a736b6b | 5339 | |
39bec121 | 5340 | int |
3076e594 | 5341 | tic54x_start_label (char * label_start, int nul_char, int next_char) |
39bec121 | 5342 | { |
2e57ce7b AM |
5343 | char *rest; |
5344 | ||
d0313fb7 | 5345 | /* If within .struct/.union, no auto line labels, please. */ |
39bec121 TW |
5346 | if (current_stag != NULL) |
5347 | return 0; | |
5348 | ||
d0313fb7 | 5349 | /* Disallow labels starting with "." */ |
2e57ce7b | 5350 | if (next_char != ':') |
39bec121 | 5351 | { |
3076e594 | 5352 | if (*label_start == '.') |
9a736b6b | 5353 | { |
3076e594 | 5354 | as_bad (_("Invalid label '%s'"), label_start); |
9a736b6b NC |
5355 | return 0; |
5356 | } | |
39bec121 TW |
5357 | } |
5358 | ||
3076e594 | 5359 | if (is_end_of_line[(unsigned char) next_char]) |
39bec121 TW |
5360 | return 1; |
5361 | ||
2e57ce7b AM |
5362 | rest = input_line_pointer; |
5363 | if (nul_char == '"') | |
5364 | ++rest; | |
5365 | while (ISSPACE (next_char)) | |
5366 | next_char = *++rest; | |
5367 | if (next_char != '.') | |
5368 | return 1; | |
39bec121 | 5369 | |
2e57ce7b AM |
5370 | /* Don't let colon () define a label for any of these... */ |
5371 | return ((strncasecmp (rest, ".tag", 4) != 0 || !ISSPACE (rest[4])) | |
5372 | && (strncasecmp (rest, ".struct", 7) != 0 || !ISSPACE (rest[7])) | |
5373 | && (strncasecmp (rest, ".union", 6) != 0 || !ISSPACE (rest[6])) | |
5374 | && (strncasecmp (rest, ".macro", 6) != 0 || !ISSPACE (rest[6])) | |
5375 | && (strncasecmp (rest, ".set", 4) != 0 || !ISSPACE (rest[4])) | |
5376 | && (strncasecmp (rest, ".equ", 4) != 0 || !ISSPACE (rest[4]))); | |
39bec121 | 5377 | } |