Commit | Line | Data |
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39bec121 | 1 | /* tc-tic54x.c -- Assembly code for the Texas Instruments TMS320C54X |
f1e7a2c9 | 2 | Copyright 1999, 2000, 2001, 2002 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 | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GAS is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GAS; see the file COPYING. If not, write to the Free | |
19 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
20 | 02111-1307, USA. */ | |
21 | ||
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 TW |
46 | |
47 | #include <stdlib.h> | |
48 | #include <limits.h> | |
49 | #include <errno.h> | |
50 | #include "as.h" | |
3882b010 | 51 | #include "safe-ctype.h" |
39bec121 TW |
52 | #include "sb.h" |
53 | #include "macro.h" | |
54 | #include "subsegs.h" | |
55 | #include "struc-symbol.h" | |
56 | #include "opcode/tic54x.h" | |
57 | #include "obj-coff.h" | |
58 | #include <math.h> | |
59 | ||
39bec121 | 60 | |
f1e7a2c9 NC |
61 | static struct stag |
62 | { | |
63 | symbolS *sym; /* Symbol for this stag; value is offset. */ | |
64 | const char *name; /* Shortcut to symbol name. */ | |
65 | bfd_vma size; /* Size of struct/union. */ | |
66 | int current_bitfield_offset; /* Temporary for tracking fields. */ | |
67 | int is_union; | |
68 | struct stag_field /* List of fields. */ | |
69 | { | |
70 | const char *name; | |
71 | bfd_vma offset; /* Of start of this field. */ | |
72 | int bitfield_offset; /* Of start of this field. */ | |
73 | struct stag *stag; /* If field is struct/union. */ | |
74 | struct stag_field *next; | |
75 | } *field; | |
76 | /* For nesting; used only in stag construction. */ | |
77 | struct stag *inner; /* Enclosed .struct. */ | |
78 | struct stag *outer; /* Enclosing .struct. */ | |
79 | } *current_stag = NULL; | |
39bec121 | 80 | |
f1e7a2c9 | 81 | #define MAX_LINE 256 /* Lines longer than this are truncated by TI's asm. */ |
9a736b6b | 82 | |
f1e7a2c9 NC |
83 | typedef struct _tic54x_insn |
84 | { | |
85 | const template *tm; /* Opcode template. */ | |
39bec121 | 86 | |
f1e7a2c9 NC |
87 | char mnemonic[MAX_LINE]; /* Opcode name/mnemonic. */ |
88 | char parmnemonic[MAX_LINE]; /* 2nd mnemonic of parallel insn. */ | |
39bec121 | 89 | |
f1e7a2c9 NC |
90 | int opcount; |
91 | struct opstruct | |
92 | { | |
93 | char buf[MAX_LINE]; | |
94 | enum optype type; | |
95 | expressionS exp; | |
96 | } operands[MAX_OPERANDS]; | |
39bec121 | 97 | |
f1e7a2c9 NC |
98 | int paropcount; |
99 | struct opstruct paroperands[MAX_OPERANDS]; | |
100 | ||
101 | int is_lkaddr; | |
102 | int lkoperand; | |
103 | int words; /* Size of insn in 16-bit words. */ | |
104 | int using_default_dst; /* Do we need to explicitly set an | |
105 | omitted OP_DST operand? */ | |
106 | struct | |
107 | { | |
108 | unsigned short word; /* Final encoded opcode data. */ | |
109 | int unresolved; | |
110 | int r_nchars; /* Relocation size. */ | |
111 | bfd_reloc_code_real_type r_type; /* Relocation type. */ | |
112 | expressionS addr_expr; /* Storage for unresolved expressions. */ | |
113 | } opcode[3]; | |
114 | } tic54x_insn; | |
d0313fb7 NC |
115 | |
116 | enum cpu_version | |
117 | { | |
39bec121 TW |
118 | VNONE = 0, V541 = 1, V542 = 2, V543 = 3, V545 = 5, V548 = 8, V549 = 9, |
119 | V545LP = 15, V546LP = 16 | |
120 | }; | |
121 | ||
d0313fb7 NC |
122 | enum address_mode |
123 | { | |
9a736b6b NC |
124 | c_mode, /* 16-bit addresses. */ |
125 | far_mode /* >16-bit addresses. */ | |
39bec121 TW |
126 | }; |
127 | ||
f1e7a2c9 NC |
128 | static segT stag_saved_seg; |
129 | static subsegT stag_saved_subseg; | |
130 | ||
131 | const char comment_chars[] = ";"; | |
132 | const char line_comment_chars[] = ";*#"; /* At column zero only. */ | |
133 | const char line_separator_chars[] = ""; /* Not permitted. */ | |
134 | ||
135 | int emitting_long = 0; | |
136 | ||
137 | /* Characters which indicate that this is a floating point constant. */ | |
138 | const char FLT_CHARS[] = "fF"; | |
139 | ||
140 | /* Characters that can be used to separate mantissa from exp in FP | |
141 | nums. */ | |
142 | const char EXP_CHARS[] = "eE"; | |
143 | ||
144 | const char *md_shortopts = ""; | |
145 | ||
39bec121 | 146 | #define OPTION_ADDRESS_MODE (OPTION_MD_BASE) |
1aea3bb8 NC |
147 | #define OPTION_CPU_VERSION (OPTION_ADDRESS_MODE + 1) |
148 | #define OPTION_COFF_VERSION (OPTION_CPU_VERSION + 1) | |
149 | #define OPTION_STDERR_TO_FILE (OPTION_COFF_VERSION + 1) | |
39bec121 | 150 | |
1aea3bb8 | 151 | struct option md_longopts[] = |
39bec121 | 152 | { |
f1e7a2c9 NC |
153 | { "mfar-mode", no_argument, NULL, OPTION_ADDRESS_MODE }, |
154 | { "mf", no_argument, NULL, OPTION_ADDRESS_MODE }, | |
155 | { "mcpu", required_argument, NULL, OPTION_CPU_VERSION }, | |
39bec121 | 156 | { "merrors-to-file", required_argument, NULL, OPTION_STDERR_TO_FILE }, |
f1e7a2c9 NC |
157 | { "me", required_argument, NULL, OPTION_STDERR_TO_FILE }, |
158 | { NULL, no_argument, NULL, 0}, | |
39bec121 TW |
159 | }; |
160 | ||
161 | size_t md_longopts_size = sizeof (md_longopts); | |
162 | ||
d0313fb7 | 163 | static int assembly_begun = 0; |
39bec121 TW |
164 | /* Addressing mode is not entirely implemented; the latest rev of the Other |
165 | assembler doesn't seem to make any distinction whatsoever; all relocations | |
166 | are stored as extended relocatiosn. Older versions used REL16 vs RELEXT16, | |
167 | but now it seems all relocations are RELEXT16. We use all RELEXT16. | |
168 | ||
169 | The cpu version is kind of a waste of time as well. There is one | |
170 | instruction (RND) for LP devices only, and several for devices with | |
d0313fb7 | 171 | extended addressing only. We include it for compatibility. */ |
39bec121 | 172 | static enum address_mode amode = c_mode; |
d0313fb7 | 173 | static enum cpu_version cpu = VNONE; |
39bec121 | 174 | |
d0313fb7 | 175 | /* Include string substitutions in listing? */ |
39bec121 | 176 | static int listing_sslist = 0; |
9a736b6b | 177 | |
d0313fb7 | 178 | /* Did we do subsym substitutions on the line? */ |
39bec121 | 179 | static int substitution_line = 0; |
9a736b6b | 180 | |
d0313fb7 | 181 | /* Last label seen. */ |
39bec121 | 182 | static symbolS *last_label_seen = NULL; |
9a736b6b | 183 | |
d0313fb7 | 184 | /* This ensures that all new labels are unique. */ |
39bec121 TW |
185 | static int local_label_id; |
186 | ||
1dab94dd | 187 | static struct hash_control *subsym_recurse_hash; /* Prevent infinite recurse. */ |
9a736b6b | 188 | static struct hash_control *math_hash; /* Built-in math functions. */ |
d0313fb7 NC |
189 | /* Allow maximum levels of macro nesting; level 0 is the main substitution |
190 | symbol table. The other assembler only does 32 levels, so there! */ | |
39bec121 | 191 | static struct hash_control *subsym_hash[100]; |
9a736b6b | 192 | |
1aea3bb8 | 193 | /* Keep track of local labels so we can substitute them before GAS sees them |
39bec121 TW |
194 | since macros use their own 'namespace' for local labels, use a separate hash |
195 | ||
196 | We do our own local label handling 'cuz it's subtly different from the | |
197 | stock GAS handling. | |
198 | ||
199 | We use our own macro nesting counter, since GAS overloads it when expanding | |
d0313fb7 | 200 | other things (like conditionals and repeat loops). */ |
39bec121 TW |
201 | static int macro_level = 0; |
202 | static struct hash_control *local_label_hash[100]; | |
d0313fb7 | 203 | /* Keep track of struct/union tags. */ |
39bec121 TW |
204 | static struct hash_control *stag_hash; |
205 | static struct hash_control *op_hash; | |
206 | static struct hash_control *parop_hash; | |
207 | static struct hash_control *reg_hash; | |
208 | static struct hash_control *mmreg_hash; | |
209 | static struct hash_control *cc_hash; | |
210 | static struct hash_control *cc2_hash; | |
211 | static struct hash_control *cc3_hash; | |
212 | static struct hash_control *sbit_hash; | |
213 | static struct hash_control *misc_symbol_hash; | |
214 | ||
f1e7a2c9 NC |
215 | /* Only word (et al.), align, or conditionals are allowed within |
216 | .struct/.union. */ | |
217 | #define ILLEGAL_WITHIN_STRUCT() \ | |
218 | do \ | |
219 | if (current_stag != NULL) \ | |
220 | { \ | |
221 | as_bad (_("pseudo-op illegal within .struct/.union")); \ | |
222 | return; \ | |
223 | } \ | |
224 | while (0) | |
39bec121 | 225 | |
f1e7a2c9 NC |
226 | static void tic54x_emit_char PARAMS ((char)); |
227 | static fragS * frag_prev PARAMS ((fragS *, segT)); | |
228 | static fragS * bit_offset_frag PARAMS ((fragS *, segT)); | |
229 | static int frag_bit_offset PARAMS ((fragS *, segT)); | |
230 | static char * parse_expression PARAMS ((char *, expressionS *)); | |
231 | static void tic54x_asg PARAMS ((int)); | |
232 | static void tic54x_eval PARAMS ((int)); | |
233 | static void tic54x_bss PARAMS ((int)); | |
234 | static void stag_add_field_symbols PARAMS ((struct stag *, const char *, bfd_vma, symbolS *, const char *)); | |
235 | static void stag_add_field PARAMS ((struct stag *, const char *, bfd_vma, struct stag *)); | |
236 | static void tic54x_struct PARAMS ((int)); | |
237 | static void tic54x_endstruct PARAMS ((int)); | |
238 | static void tic54x_tag PARAMS ((int)); | |
239 | static void tic54x_struct_field PARAMS ((int)); | |
240 | static void tic54x_cons PARAMS ((int)); | |
241 | static void tic54x_remove_local_label PARAMS ((const char *, PTR)); | |
242 | static void tic54x_clear_local_labels PARAMS ((int)); | |
243 | static void tic54x_sect PARAMS ((int)); | |
244 | static void tic54x_space PARAMS ((int)); | |
245 | static void tic54x_usect PARAMS ((int)); | |
246 | static enum cpu_version lookup_version PARAMS ((const char *)); | |
247 | static void set_cpu PARAMS ((enum cpu_version)); | |
248 | static void tic54x_version PARAMS ((int)); | |
249 | static void tic54x_float_cons PARAMS ((int)); | |
250 | static void tic54x_stringer PARAMS ((int)); | |
251 | static void tic54x_p2align PARAMS ((int)); | |
252 | static void tic54x_align_words PARAMS ((int)); | |
253 | static void tic54x_field PARAMS ((int)); | |
254 | static int tic54x_initialized_section PARAMS ((segT)); | |
255 | static void tic54x_clink PARAMS ((int)); | |
256 | static void tic54x_set_default_include PARAMS ((int)); | |
257 | static void tic54x_include PARAMS ((int)); | |
258 | static void tic54x_message PARAMS ((int)); | |
259 | static void tic54x_label PARAMS ((int)); | |
260 | static void tic54x_mmregs PARAMS ((int)); | |
261 | static void tic54x_loop PARAMS ((int)); | |
262 | static void tic54x_endloop PARAMS ((int)); | |
263 | static void tic54x_break PARAMS ((int)); | |
264 | static void set_address_mode PARAMS ((int)); | |
265 | static void tic54x_address_mode PARAMS ((int)); | |
266 | static void tic54x_sblock PARAMS ((int)); | |
267 | static void tic54x_set PARAMS ((int)); | |
268 | static void tic54x_fclist PARAMS ((int)); | |
269 | static void tic54x_sslist PARAMS ((int)); | |
270 | static void tic54x_var PARAMS ((int)); | |
271 | static void tic54x_mlib PARAMS ((int)); | |
272 | static int subsym_symlen PARAMS ((char *, char *)); | |
273 | static int subsym_symcmp PARAMS ((char *, char *)); | |
274 | static int subsym_firstch PARAMS ((char *, char *)); | |
275 | static int subsym_lastch PARAMS ((char *, char *)); | |
276 | static int subsym_isdefed PARAMS ((char *, char *)); | |
277 | static int subsym_ismember PARAMS ((char *, char *)); | |
278 | static int subsym_iscons PARAMS ((char *, char *)); | |
279 | static int subsym_isname PARAMS ((char *, char *)); | |
280 | static int subsym_isreg PARAMS ((char *, char *)); | |
281 | static int subsym_structsz PARAMS ((char *, char *)); | |
282 | static int subsym_structacc PARAMS ((char *, char *)); | |
283 | static float math_ceil PARAMS ((float, float)); | |
284 | static float math_cvi PARAMS ((float, float)); | |
285 | static float math_floor PARAMS ((float, float)); | |
286 | static float math_fmod PARAMS ((float, float)); | |
287 | static float math_int PARAMS ((float, float)); | |
288 | static float math_round PARAMS ((float, float)); | |
289 | static float math_sgn PARAMS ((float, float)); | |
290 | static float math_trunc PARAMS ((float, float)); | |
291 | static float math_acos PARAMS ((float, float)); | |
292 | static float math_asin PARAMS ((float, float)); | |
293 | static float math_atan PARAMS ((float, float)); | |
294 | static float math_atan2 PARAMS ((float, float)); | |
295 | static float math_cosh PARAMS ((float, float)); | |
296 | static float math_cos PARAMS ((float, float)); | |
297 | static float math_cvf PARAMS ((float, float)); | |
298 | static float math_exp PARAMS ((float, float)); | |
299 | static float math_fabs PARAMS ((float, float)); | |
300 | static float math_ldexp PARAMS ((float, float)); | |
301 | static float math_log10 PARAMS ((float, float)); | |
302 | static float math_log PARAMS ((float, float)); | |
303 | static float math_max PARAMS ((float, float)); | |
304 | static float math_min PARAMS ((float, float)); | |
305 | static float math_pow PARAMS ((float, float)); | |
306 | static float math_sin PARAMS ((float, float)); | |
307 | static float math_sinh PARAMS ((float, float)); | |
308 | static float math_sqrt PARAMS ((float, float)); | |
309 | static float math_tan PARAMS ((float, float)); | |
310 | static float math_tanh PARAMS ((float, float)); | |
311 | static int is_accumulator PARAMS ((struct opstruct *)); | |
312 | static int get_operands PARAMS ((struct opstruct operands[], char *)); | |
313 | static int is_immediate PARAMS ((struct opstruct *)); | |
314 | static int is_absolute PARAMS ((struct opstruct *)); | |
315 | static int is_indirect PARAMS ((struct opstruct *)); | |
316 | static int is_dual PARAMS ((struct opstruct *)); | |
317 | static int is_mmreg PARAMS ((struct opstruct *)); | |
318 | static int is_type PARAMS ((struct opstruct *, enum optype)); | |
319 | static int operands_match PARAMS ((tic54x_insn *, struct opstruct *, int, const enum optype *, int, int)); | |
320 | static int encode_dmad PARAMS ((tic54x_insn *, struct opstruct *, int)); | |
321 | static int encode_address PARAMS ((tic54x_insn *, struct opstruct *)); | |
322 | static int encode_indirect PARAMS ((tic54x_insn *, struct opstruct *)); | |
323 | static int encode_integer PARAMS ((tic54x_insn *, struct opstruct *, int, int, int, unsigned short)); | |
324 | static int encode_condition PARAMS ((tic54x_insn *, struct opstruct *)); | |
325 | static int encode_cc3 PARAMS ((tic54x_insn *, struct opstruct *)); | |
326 | static int encode_arx PARAMS ((tic54x_insn *, struct opstruct *)); | |
327 | static int encode_cc2 PARAMS ((tic54x_insn *, struct opstruct *)); | |
328 | static int encode_operand PARAMS ((tic54x_insn *, enum optype, struct opstruct *)); | |
329 | static void emit_insn PARAMS ((tic54x_insn *)); | |
330 | static int build_insn PARAMS ((tic54x_insn *)); | |
331 | static int optimize_insn PARAMS ((tic54x_insn *)); | |
332 | static int tic54x_parse_insn PARAMS ((tic54x_insn *, char *)); | |
333 | static int next_line_shows_parallel PARAMS ((char *)); | |
334 | static int tic54x_parse_parallel_insn_firstline PARAMS ((tic54x_insn *, char *)); | |
335 | static int tic54x_parse_parallel_insn_lastline PARAMS ((tic54x_insn *, char *)); | |
336 | static char * subsym_get_arg PARAMS ((char *, char *, char **, int)); | |
337 | static void subsym_create_or_replace PARAMS ((char *, char *)); | |
338 | static char * subsym_lookup PARAMS ((char *, int)); | |
339 | static char * subsym_substitute PARAMS ((char *, int)); | |
39bec121 | 340 | |
f1e7a2c9 NC |
341 | |
342 | void | |
343 | md_show_usage (stream) | |
344 | FILE *stream; | |
345 | { | |
346 | fprintf (stream, _("C54x-specific command line options:\n")); | |
347 | fprintf (stream, _("-mfar-mode | -mf Use extended addressing\n")); | |
348 | fprintf (stream, _("-mcpu=<CPU version> Specify the CPU version\n")); | |
f1e7a2c9 NC |
349 | fprintf (stream, _("-merrors-to-file <filename>\n")); |
350 | fprintf (stream, _("-me <filename> Redirect errors to a file\n")); | |
351 | } | |
39bec121 | 352 | |
d0313fb7 | 353 | /* Output a single character (upper octect is zero). */ |
9a736b6b | 354 | |
d0313fb7 | 355 | static void |
f1e7a2c9 NC |
356 | tic54x_emit_char (c) |
357 | char c; | |
39bec121 TW |
358 | { |
359 | expressionS exp; | |
360 | ||
361 | exp.X_op = O_constant; | |
362 | exp.X_add_number = c; | |
363 | emit_expr (&exp, 2); | |
364 | } | |
365 | ||
d0313fb7 | 366 | /* Walk backwards in the frag chain. */ |
9a736b6b | 367 | |
39bec121 | 368 | static fragS * |
f1e7a2c9 NC |
369 | frag_prev (frag, seg) |
370 | fragS *frag; | |
371 | segT seg; | |
39bec121 TW |
372 | { |
373 | segment_info_type *seginfo = seg_info (seg); | |
374 | fragS *fragp; | |
375 | ||
d0313fb7 | 376 | for (fragp = seginfo->frchainP->frch_root; fragp; fragp = fragp->fr_next) |
39bec121 TW |
377 | if (fragp->fr_next == frag) |
378 | return fragp; | |
1aea3bb8 | 379 | |
39bec121 TW |
380 | return NULL; |
381 | } | |
382 | ||
383 | static fragS * | |
f1e7a2c9 NC |
384 | bit_offset_frag (frag, seg) |
385 | fragS *frag; | |
386 | segT seg; | |
39bec121 TW |
387 | { |
388 | while (frag != NULL) | |
389 | { | |
d0313fb7 NC |
390 | if (frag->fr_fix == 0 |
391 | && frag->fr_opcode == NULL | |
392 | && frag->tc_frag_data == 0) | |
393 | frag = frag_prev (frag, seg); | |
39bec121 | 394 | else |
d0313fb7 | 395 | return frag; |
39bec121 TW |
396 | } |
397 | return NULL; | |
398 | } | |
399 | ||
d0313fb7 NC |
400 | /* Return the number of bits allocated in the most recent word, or zero if |
401 | none. .field/.space/.bes may leave words partially allocated. */ | |
9a736b6b | 402 | |
39bec121 | 403 | static int |
f1e7a2c9 NC |
404 | frag_bit_offset (frag, seg) |
405 | fragS *frag; | |
406 | segT seg; | |
39bec121 TW |
407 | { |
408 | frag = bit_offset_frag (frag, seg); | |
1aea3bb8 | 409 | |
39bec121 | 410 | if (frag) |
d0313fb7 NC |
411 | return frag->fr_opcode != NULL ? -1 : frag->tc_frag_data; |
412 | ||
39bec121 TW |
413 | return 0; |
414 | } | |
415 | ||
d0313fb7 NC |
416 | /* Read an expression from a C string; returns a pointer past the end of the |
417 | expression. */ | |
9a736b6b | 418 | |
39bec121 | 419 | static char * |
f1e7a2c9 NC |
420 | parse_expression (str, exp) |
421 | char *str; | |
422 | expressionS * exp; | |
39bec121 TW |
423 | { |
424 | char *s; | |
425 | char *tmp; | |
426 | ||
427 | tmp = input_line_pointer; /* Save line pointer. */ | |
428 | input_line_pointer = str; | |
429 | expression (exp); | |
430 | s = input_line_pointer; | |
431 | input_line_pointer = tmp; /* Restore line pointer. */ | |
432 | return s; /* Return pointer to where parsing stopped. */ | |
433 | } | |
434 | ||
1aea3bb8 NC |
435 | /* .asg "character-string"|character-string, symbol |
436 | ||
39bec121 TW |
437 | .eval is the only pseudo-op allowed to perform arithmetic on substitution |
438 | symbols. all other use of symbols defined with .asg are currently | |
d0313fb7 | 439 | unsupported. */ |
9a736b6b | 440 | |
d0313fb7 | 441 | static void |
f1e7a2c9 NC |
442 | tic54x_asg (x) |
443 | int x ATTRIBUTE_UNUSED; | |
39bec121 TW |
444 | { |
445 | int c; | |
446 | char *name; | |
447 | char *str; | |
448 | char *tmp; | |
449 | int quoted = *input_line_pointer == '"'; | |
450 | ||
451 | ILLEGAL_WITHIN_STRUCT (); | |
452 | ||
453 | if (quoted) | |
454 | { | |
455 | int len; | |
456 | str = demand_copy_C_string (&len); | |
457 | c = *input_line_pointer; | |
458 | } | |
459 | else | |
460 | { | |
461 | str = input_line_pointer; | |
462 | while ((c = *input_line_pointer) != ',') | |
d0313fb7 NC |
463 | { |
464 | if (is_end_of_line[(int) *input_line_pointer]) | |
465 | break; | |
466 | ++input_line_pointer; | |
467 | } | |
39bec121 TW |
468 | *input_line_pointer = 0; |
469 | } | |
470 | if (c != ',') | |
471 | { | |
472 | as_bad (_("Comma and symbol expected for '.asg STRING, SYMBOL'")); | |
473 | ignore_rest_of_line (); | |
474 | return; | |
475 | } | |
476 | ||
477 | name = ++input_line_pointer; | |
478 | c = get_symbol_end (); /* Get terminator. */ | |
3882b010 | 479 | if (!ISALPHA (*name)) |
39bec121 TW |
480 | { |
481 | as_bad ("symbols assigned with .asg must begin with a letter"); | |
482 | ignore_rest_of_line (); | |
483 | return; | |
484 | } | |
485 | ||
486 | tmp = xmalloc (strlen (str) + 1); | |
487 | strcpy (tmp, str); | |
488 | str = tmp; | |
489 | tmp = xmalloc (strlen (name) + 1); | |
490 | strcpy (tmp, name); | |
491 | name = tmp; | |
492 | subsym_create_or_replace (name, str); | |
493 | *input_line_pointer = c; | |
494 | demand_empty_rest_of_line (); | |
495 | } | |
496 | ||
1aea3bb8 | 497 | /* .eval expression, symbol |
39bec121 | 498 | There's something screwy about this. The other assembler sometimes does and |
1aea3bb8 | 499 | sometimes doesn't substitute symbols defined with .eval. |
39bec121 | 500 | We'll put the symbols into the subsym table as well as the normal symbol |
d0313fb7 | 501 | table, since that's what works best. */ |
9a736b6b | 502 | |
d0313fb7 | 503 | static void |
f1e7a2c9 NC |
504 | tic54x_eval (x) |
505 | int x ATTRIBUTE_UNUSED; | |
39bec121 TW |
506 | { |
507 | char c; | |
508 | int value; | |
509 | char *name; | |
510 | symbolS *symbolP; | |
511 | char valuestr[32], *tmp; | |
512 | int quoted; | |
513 | ||
514 | ILLEGAL_WITHIN_STRUCT (); | |
515 | ||
516 | SKIP_WHITESPACE (); | |
517 | ||
518 | quoted = *input_line_pointer == '"'; | |
519 | if (quoted) | |
520 | ++input_line_pointer; | |
521 | value = get_absolute_expression (); | |
522 | if (quoted) | |
523 | { | |
524 | if (*input_line_pointer != '"') | |
d0313fb7 NC |
525 | { |
526 | as_bad (_("Unterminated string after absolute expression")); | |
527 | ignore_rest_of_line (); | |
528 | return; | |
529 | } | |
39bec121 TW |
530 | ++input_line_pointer; |
531 | } | |
532 | if (*input_line_pointer++ != ',') | |
533 | { | |
534 | as_bad (_("Comma and symbol expected for '.eval EXPR, SYMBOL'")); | |
535 | ignore_rest_of_line (); | |
536 | return; | |
537 | } | |
538 | name = input_line_pointer; | |
539 | c = get_symbol_end (); /* Get terminator. */ | |
d0313fb7 | 540 | tmp = xmalloc (strlen (name) + 1); |
39bec121 TW |
541 | name = strcpy (tmp, name); |
542 | *input_line_pointer = c; | |
543 | ||
3882b010 | 544 | if (!ISALPHA (*name)) |
39bec121 TW |
545 | { |
546 | as_bad (_("symbols assigned with .eval must begin with a letter")); | |
547 | ignore_rest_of_line (); | |
548 | return; | |
549 | } | |
550 | symbolP = symbol_new (name, absolute_section, | |
551 | (valueT) value, &zero_address_frag); | |
552 | SF_SET_LOCAL (symbolP); | |
553 | symbol_table_insert (symbolP); | |
554 | ||
555 | /* The "other" assembler sometimes doesn't put .eval's in the subsym table | |
556 | But since there's not written rule as to when, don't even bother trying | |
d0313fb7 | 557 | to match their behavior. */ |
39bec121 TW |
558 | sprintf (valuestr, "%d", value); |
559 | tmp = xmalloc (strlen (valuestr) + 1); | |
560 | strcpy (tmp, valuestr); | |
561 | subsym_create_or_replace (name, tmp); | |
562 | ||
563 | demand_empty_rest_of_line (); | |
564 | } | |
565 | ||
1aea3bb8 | 566 | /* .bss symbol, size [, [blocking flag] [, alignment flag] |
39bec121 TW |
567 | |
568 | alignment is to a longword boundary; blocking is to 128-word boundary. | |
569 | ||
570 | 1) if there is a hole in memory, this directive should attempt to fill it | |
571 | (not yet implemented). | |
572 | ||
573 | 2) if the blocking flag is not set, allocate at the current SPC | |
574 | otherwise, check to see if the current SPC plus the space to be | |
575 | allocated crosses the page boundary (128 words). | |
576 | if there's not enough space, create a hole and align with the next page | |
1aea3bb8 | 577 | boundary. |
d0313fb7 | 578 | (not yet implemented). */ |
9a736b6b | 579 | |
d0313fb7 | 580 | static void |
f1e7a2c9 NC |
581 | tic54x_bss (x) |
582 | int x ATTRIBUTE_UNUSED; | |
39bec121 TW |
583 | { |
584 | char c; | |
585 | char *name; | |
586 | char *p; | |
587 | int words; | |
588 | segT current_seg; | |
589 | subsegT current_subseg; | |
590 | symbolS *symbolP; | |
591 | int block = 0; | |
592 | int align = 0; | |
593 | ||
594 | ILLEGAL_WITHIN_STRUCT (); | |
595 | ||
d0313fb7 NC |
596 | current_seg = now_seg; /* Save current seg. */ |
597 | current_subseg = now_subseg; /* Save current subseg. */ | |
39bec121 TW |
598 | |
599 | name = input_line_pointer; | |
600 | c = get_symbol_end (); /* Get terminator. */ | |
601 | if (c != ',') | |
602 | { | |
603 | as_bad (".bss size argument missing\n"); | |
604 | ignore_rest_of_line (); | |
605 | return; | |
606 | } | |
607 | ||
608 | ++input_line_pointer; | |
609 | words = get_absolute_expression (); | |
610 | if (words < 0) | |
611 | { | |
612 | as_bad (".bss size %d < 0!", words); | |
613 | ignore_rest_of_line (); | |
614 | return; | |
615 | } | |
616 | ||
617 | if (*input_line_pointer == ',') | |
618 | { | |
9a736b6b | 619 | /* The blocking flag may be missing. */ |
39bec121 TW |
620 | ++input_line_pointer; |
621 | if (*input_line_pointer != ',') | |
d0313fb7 | 622 | block = get_absolute_expression (); |
39bec121 | 623 | else |
d0313fb7 | 624 | block = 0; |
39bec121 TW |
625 | |
626 | if (*input_line_pointer == ',') | |
d0313fb7 NC |
627 | { |
628 | ++input_line_pointer; | |
629 | align = get_absolute_expression (); | |
630 | } | |
39bec121 | 631 | else |
d0313fb7 | 632 | align = 0; |
39bec121 TW |
633 | } |
634 | else | |
635 | block = align = 0; | |
636 | ||
637 | subseg_set (bss_section, 0); | |
638 | symbolP = symbol_find_or_make (name); | |
639 | ||
640 | if (S_GET_SEGMENT (symbolP) == bss_section) | |
641 | symbolP->sy_frag->fr_symbol = (symbolS *) NULL; | |
642 | ||
643 | symbol_set_frag (symbolP, frag_now); | |
644 | p = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, | |
6e917903 | 645 | (offsetT) (words * OCTETS_PER_BYTE), (char *) 0); |
9a736b6b | 646 | *p = 0; /* Fill char. */ |
39bec121 TW |
647 | |
648 | S_SET_SEGMENT (symbolP, bss_section); | |
649 | ||
650 | /* The symbol may already have been created with a preceding | |
651 | ".globl" directive -- be careful not to step on storage class | |
652 | in that case. Otherwise, set it to static. */ | |
653 | if (S_GET_STORAGE_CLASS (symbolP) != C_EXT) | |
654 | S_SET_STORAGE_CLASS (symbolP, C_STAT); | |
655 | ||
656 | if (align) | |
657 | { | |
658 | /* s_align eats end of line; restore it */ | |
659 | s_align_bytes (4); | |
660 | --input_line_pointer; | |
661 | } | |
662 | ||
663 | if (block) | |
1aea3bb8 | 664 | bss_section->flags |= SEC_BLOCK; |
39bec121 | 665 | |
9a736b6b | 666 | subseg_set (current_seg, current_subseg); /* Restore current seg. */ |
39bec121 TW |
667 | demand_empty_rest_of_line (); |
668 | } | |
669 | ||
670 | static void | |
f1e7a2c9 NC |
671 | stag_add_field_symbols (stag, path, base_offset, rootsym, root_stag_name) |
672 | struct stag *stag; | |
673 | const char *path; | |
674 | bfd_vma base_offset; | |
675 | symbolS *rootsym; | |
676 | const char *root_stag_name; | |
39bec121 TW |
677 | { |
678 | char prefix[strlen (path) + 2]; | |
679 | struct stag_field *field = stag->field; | |
1aea3bb8 NC |
680 | |
681 | /* Construct a symbol for every field contained within this structure | |
d0313fb7 | 682 | including fields within structure fields. */ |
39bec121 TW |
683 | strcpy (prefix, path); |
684 | if (*path) | |
685 | strcat (prefix, "."); | |
686 | ||
687 | while (field != NULL) | |
688 | { | |
689 | int len = strlen (prefix) + strlen (field->name) + 2; | |
690 | char *name = xmalloc (len); | |
691 | strcpy (name, prefix); | |
692 | strcat (name, field->name); | |
693 | ||
694 | if (rootsym == NULL) | |
9a736b6b NC |
695 | { |
696 | symbolS *sym; | |
697 | sym = symbol_new (name, absolute_section, | |
698 | (field->stag ? field->offset : | |
699 | (valueT) (base_offset + field->offset)), | |
700 | &zero_address_frag); | |
701 | SF_SET_LOCAL (sym); | |
702 | symbol_table_insert (sym); | |
703 | } | |
39bec121 | 704 | else |
9a736b6b NC |
705 | { |
706 | char *replacement = xmalloc (strlen (name) | |
1aea3bb8 | 707 | + strlen (stag->name) + 2); |
9a736b6b NC |
708 | strcpy (replacement, S_GET_NAME (rootsym)); |
709 | strcat (replacement, "+"); | |
710 | strcat (replacement, root_stag_name); | |
711 | strcat (replacement, name + strlen (S_GET_NAME (rootsym))); | |
712 | hash_insert (subsym_hash[0], name, replacement); | |
713 | } | |
39bec121 | 714 | |
d0313fb7 | 715 | /* Recurse if the field is a structure. |
9a736b6b | 716 | Note the field offset is relative to the outermost struct. */ |
39bec121 | 717 | if (field->stag != NULL) |
9a736b6b NC |
718 | stag_add_field_symbols (field->stag, name, |
719 | field->offset, | |
720 | rootsym, root_stag_name); | |
39bec121 TW |
721 | field = field->next; |
722 | } | |
723 | } | |
724 | ||
d0313fb7 NC |
725 | /* Keep track of stag fields so that when structures are nested we can add the |
726 | complete dereferencing symbols to the symbol table. */ | |
9a736b6b | 727 | |
39bec121 | 728 | static void |
f1e7a2c9 NC |
729 | stag_add_field (parent, name, offset, stag) |
730 | struct stag *parent; | |
731 | const char *name; | |
732 | bfd_vma offset; | |
733 | struct stag *stag; | |
39bec121 TW |
734 | { |
735 | struct stag_field *sfield = xmalloc (sizeof (struct stag_field)); | |
736 | ||
737 | memset (sfield, 0, sizeof (*sfield)); | |
1aea3bb8 | 738 | sfield->name = strcpy (xmalloc (strlen (name) + 1), name); |
39bec121 TW |
739 | sfield->offset = offset; |
740 | sfield->bitfield_offset = parent->current_bitfield_offset; | |
741 | sfield->stag = stag; | |
742 | if (parent->field == NULL) | |
743 | parent->field = sfield; | |
1aea3bb8 NC |
744 | else |
745 | { | |
746 | struct stag_field *sf = parent->field; | |
747 | while (sf->next != NULL) | |
748 | sf = sf->next; | |
749 | sf->next = sfield; | |
750 | } | |
d0313fb7 | 751 | /* Only create a symbol for this field if the parent has no name. */ |
39bec121 TW |
752 | if (!strncmp (".fake", parent->name, 5)) |
753 | { | |
1aea3bb8 | 754 | symbolS *sym = symbol_new (name, absolute_section, |
9a736b6b | 755 | (valueT) offset, &zero_address_frag); |
39bec121 TW |
756 | SF_SET_LOCAL (sym); |
757 | symbol_table_insert (sym); | |
758 | } | |
759 | } | |
760 | ||
761 | /* [STAG] .struct [OFFSET] | |
9a736b6b NC |
762 | Start defining structure offsets (symbols in absolute section). */ |
763 | ||
39bec121 | 764 | static void |
f1e7a2c9 NC |
765 | tic54x_struct (arg) |
766 | int arg; | |
39bec121 TW |
767 | { |
768 | int start_offset = 0; | |
769 | int is_union = arg; | |
770 | ||
771 | if (!current_stag) | |
772 | { | |
d0313fb7 | 773 | /* Starting a new struct, switch to absolute section. */ |
39bec121 TW |
774 | stag_saved_seg = now_seg; |
775 | stag_saved_subseg = now_subseg; | |
776 | subseg_set (absolute_section, 0); | |
777 | } | |
d0313fb7 | 778 | /* Align the current pointer. */ |
39bec121 TW |
779 | else if (current_stag->current_bitfield_offset != 0) |
780 | { | |
781 | ++abs_section_offset; | |
782 | current_stag->current_bitfield_offset = 0; | |
783 | } | |
784 | ||
d0313fb7 | 785 | /* Offset expression is only meaningful for global .structs. */ |
39bec121 TW |
786 | if (!is_union) |
787 | { | |
d0313fb7 | 788 | /* Offset is ignored in inner structs. */ |
39bec121 | 789 | SKIP_WHITESPACE (); |
1aea3bb8 | 790 | if (!is_end_of_line[(int) *input_line_pointer]) |
9a736b6b | 791 | start_offset = get_absolute_expression (); |
39bec121 | 792 | else |
9a736b6b | 793 | start_offset = 0; |
39bec121 TW |
794 | } |
795 | ||
796 | if (current_stag) | |
797 | { | |
d0313fb7 | 798 | /* Nesting, link to outer one. */ |
1aea3bb8 | 799 | current_stag->inner = (struct stag *) xmalloc (sizeof (struct stag)); |
39bec121 TW |
800 | memset (current_stag->inner, 0, sizeof (struct stag)); |
801 | current_stag->inner->outer = current_stag; | |
802 | current_stag = current_stag->inner; | |
803 | if (start_offset) | |
9a736b6b | 804 | as_warn (_("Offset on nested structures is ignored")); |
39bec121 TW |
805 | start_offset = abs_section_offset; |
806 | } | |
1aea3bb8 | 807 | else |
39bec121 | 808 | { |
1aea3bb8 | 809 | current_stag = (struct stag *) xmalloc (sizeof (struct stag)); |
39bec121 TW |
810 | memset (current_stag, 0, sizeof (struct stag)); |
811 | abs_section_offset = start_offset; | |
812 | } | |
813 | current_stag->is_union = is_union; | |
814 | ||
815 | if (line_label == NULL) | |
816 | { | |
817 | static int struct_count = 0; | |
818 | char fake[] = ".fake_stagNNNNNNN"; | |
819 | sprintf (fake, ".fake_stag%d", struct_count++); | |
820 | current_stag->sym = symbol_new (fake, absolute_section, | |
9a736b6b NC |
821 | (valueT) abs_section_offset, |
822 | &zero_address_frag); | |
39bec121 TW |
823 | } |
824 | else | |
825 | { | |
826 | char label[strlen (S_GET_NAME (line_label)) + 1]; | |
827 | strcpy (label, S_GET_NAME (line_label)); | |
828 | current_stag->sym = symbol_new (label, absolute_section, | |
9a736b6b NC |
829 | (valueT) abs_section_offset, |
830 | &zero_address_frag); | |
39bec121 TW |
831 | } |
832 | current_stag->name = S_GET_NAME (current_stag->sym); | |
833 | SF_SET_LOCAL (current_stag->sym); | |
d0313fb7 | 834 | /* Nested .structs don't go into the symbol table. */ |
39bec121 TW |
835 | if (current_stag->outer == NULL) |
836 | symbol_table_insert (current_stag->sym); | |
837 | ||
838 | line_label = NULL; | |
839 | } | |
840 | ||
1aea3bb8 | 841 | /* [LABEL] .endstruct |
39bec121 | 842 | finish defining structure offsets; optional LABEL's value will be the size |
d0313fb7 | 843 | of the structure. */ |
9a736b6b | 844 | |
39bec121 | 845 | static void |
f1e7a2c9 NC |
846 | tic54x_endstruct (is_union) |
847 | int is_union; | |
39bec121 TW |
848 | { |
849 | int size; | |
1aea3bb8 | 850 | const char *path = |
39bec121 | 851 | !strncmp (current_stag->name, ".fake", 5) ? "" : current_stag->name; |
1aea3bb8 | 852 | |
39bec121 TW |
853 | if (!current_stag || current_stag->is_union != is_union) |
854 | { | |
1aea3bb8 | 855 | as_bad (_(".end%s without preceding .%s"), |
9a736b6b NC |
856 | is_union ? "union" : "struct", |
857 | is_union ? "union" : "struct"); | |
39bec121 TW |
858 | ignore_rest_of_line (); |
859 | return; | |
860 | } | |
861 | ||
d0313fb7 | 862 | /* Align end of structures. */ |
39bec121 TW |
863 | if (current_stag->current_bitfield_offset) |
864 | { | |
865 | ++abs_section_offset; | |
866 | current_stag->current_bitfield_offset = 0; | |
867 | } | |
868 | ||
869 | if (current_stag->is_union) | |
870 | size = current_stag->size; | |
871 | else | |
872 | size = abs_section_offset - S_GET_VALUE (current_stag->sym); | |
873 | if (line_label != NULL) | |
874 | { | |
875 | S_SET_VALUE (line_label, size); | |
876 | symbol_table_insert (line_label); | |
877 | line_label = NULL; | |
878 | } | |
879 | ||
d0313fb7 | 880 | /* Union size has already been calculated. */ |
39bec121 TW |
881 | if (!current_stag->is_union) |
882 | current_stag->size = size; | |
d0313fb7 | 883 | /* Nested .structs don't get put in the stag table. */ |
39bec121 TW |
884 | if (current_stag->outer == NULL) |
885 | { | |
886 | hash_insert (stag_hash, current_stag->name, current_stag); | |
1aea3bb8 | 887 | stag_add_field_symbols (current_stag, path, |
9a736b6b NC |
888 | S_GET_VALUE (current_stag->sym), |
889 | NULL, NULL); | |
39bec121 TW |
890 | } |
891 | current_stag = current_stag->outer; | |
892 | ||
d0313fb7 NC |
893 | /* If this is a nested .struct/.union, add it as a field to the enclosing |
894 | one. otherwise, restore the section we were in. */ | |
39bec121 TW |
895 | if (current_stag != NULL) |
896 | { | |
897 | stag_add_field (current_stag, current_stag->inner->name, | |
9a736b6b NC |
898 | S_GET_VALUE (current_stag->inner->sym), |
899 | current_stag->inner); | |
39bec121 TW |
900 | } |
901 | else | |
902 | subseg_set (stag_saved_seg, stag_saved_subseg); | |
903 | } | |
904 | ||
905 | /* [LABEL] .tag STAG | |
906 | Reference a structure within a structure, as a sized field with an optional | |
1aea3bb8 | 907 | label. |
39bec121 | 908 | If used outside of a .struct/.endstruct, overlays the given structure |
d0313fb7 | 909 | format on the existing allocated space. */ |
9a736b6b | 910 | |
39bec121 | 911 | static void |
f1e7a2c9 NC |
912 | tic54x_tag (ignore) |
913 | int ignore ATTRIBUTE_UNUSED; | |
39bec121 TW |
914 | { |
915 | char *name = input_line_pointer; | |
916 | int c = get_symbol_end (); | |
1aea3bb8 | 917 | struct stag *stag = (struct stag *) hash_find (stag_hash, name); |
39bec121 TW |
918 | |
919 | if (!stag) | |
920 | { | |
921 | if (*name) | |
9a736b6b | 922 | as_bad (_("Unrecognized struct/union tag '%s'"), name); |
39bec121 | 923 | else |
9a736b6b | 924 | as_bad (_(".tag requires a structure tag")); |
39bec121 TW |
925 | ignore_rest_of_line (); |
926 | return; | |
927 | } | |
928 | if (line_label == NULL) | |
929 | { | |
930 | as_bad (_("Label required for .tag")); | |
931 | ignore_rest_of_line (); | |
932 | return; | |
933 | } | |
934 | else | |
935 | { | |
1aea3bb8 NC |
936 | char label[strlen (S_GET_NAME (line_label)) + 1]; |
937 | ||
938 | strcpy (label, S_GET_NAME (line_label)); | |
39bec121 | 939 | if (current_stag != NULL) |
9a736b6b NC |
940 | stag_add_field (current_stag, label, |
941 | abs_section_offset - S_GET_VALUE (current_stag->sym), | |
942 | stag); | |
39bec121 | 943 | else |
9a736b6b NC |
944 | { |
945 | symbolS *sym = symbol_find (label); | |
f1e7a2c9 | 946 | |
9a736b6b NC |
947 | if (!sym) |
948 | { | |
949 | as_bad (_(".tag target '%s' undefined"), label); | |
950 | ignore_rest_of_line (); | |
951 | return; | |
952 | } | |
953 | stag_add_field_symbols (stag, S_GET_NAME (sym), | |
954 | S_GET_VALUE (stag->sym), sym, stag->name); | |
955 | } | |
39bec121 | 956 | } |
1aea3bb8 | 957 | |
d0313fb7 | 958 | /* Bump by the struct size, but only if we're within a .struct section. */ |
39bec121 TW |
959 | if (current_stag != NULL && !current_stag->is_union) |
960 | abs_section_offset += stag->size; | |
961 | ||
962 | *input_line_pointer = c; | |
963 | demand_empty_rest_of_line (); | |
964 | line_label = NULL; | |
965 | } | |
966 | ||
d0313fb7 | 967 | /* Handle all .byte, .char, .double, .field, .float, .half, .int, .long, |
39bec121 | 968 | .short, .string, .ubyte, .uchar, .uhalf, .uint, .ulong, .ushort, .uword, |
d0313fb7 | 969 | and .word. */ |
9a736b6b | 970 | |
39bec121 | 971 | static void |
f1e7a2c9 NC |
972 | tic54x_struct_field (type) |
973 | int type; | |
39bec121 TW |
974 | { |
975 | int size; | |
976 | int count = 1; | |
977 | int new_bitfield_offset = 0; | |
978 | int field_align = current_stag->current_bitfield_offset != 0; | |
979 | int longword_align = 0; | |
980 | ||
981 | SKIP_WHITESPACE (); | |
1aea3bb8 | 982 | if (!is_end_of_line[(int) *input_line_pointer]) |
39bec121 TW |
983 | count = get_absolute_expression (); |
984 | ||
985 | switch (type) | |
986 | { | |
987 | case 'b': | |
988 | case 'B': | |
989 | case 'c': | |
990 | case 'C': | |
991 | case 'h': | |
992 | case 'H': | |
993 | case 'i': | |
994 | case 'I': | |
995 | case 's': | |
996 | case 'S': | |
997 | case 'w': | |
998 | case 'W': | |
9a736b6b | 999 | case '*': /* String. */ |
39bec121 TW |
1000 | size = 1; |
1001 | break; | |
1002 | case 'f': | |
1003 | case 'l': | |
1004 | case 'L': | |
1005 | longword_align = 1; | |
1006 | size = 2; | |
1007 | break; | |
9a736b6b | 1008 | case '.': /* Bitfield. */ |
39bec121 TW |
1009 | size = 0; |
1010 | if (count < 1 || count > 32) | |
9a736b6b NC |
1011 | { |
1012 | as_bad (_(".field count '%d' out of range (1 <= X <= 32)"), count); | |
1013 | ignore_rest_of_line (); | |
1014 | return; | |
1015 | } | |
39bec121 | 1016 | if (current_stag->current_bitfield_offset + count > 16) |
9a736b6b NC |
1017 | { |
1018 | /* Set the appropriate size and new field offset. */ | |
1019 | if (count == 32) | |
1020 | { | |
1021 | size = 2; | |
1aea3bb8 | 1022 | count = 1; |
9a736b6b NC |
1023 | } |
1024 | else if (count > 16) | |
1025 | { | |
1026 | size = 1; | |
1aea3bb8 | 1027 | count = 1; |
9a736b6b NC |
1028 | new_bitfield_offset = count - 16; |
1029 | } | |
1030 | else | |
f1e7a2c9 | 1031 | new_bitfield_offset = count; |
9a736b6b | 1032 | } |
39bec121 | 1033 | else |
9a736b6b NC |
1034 | { |
1035 | field_align = 0; | |
1036 | new_bitfield_offset = current_stag->current_bitfield_offset + count; | |
1037 | } | |
39bec121 TW |
1038 | break; |
1039 | default: | |
1040 | as_bad (_("Unrecognized field type '%c'"), type); | |
1041 | ignore_rest_of_line (); | |
1042 | return; | |
1043 | } | |
1044 | ||
1045 | if (field_align) | |
1046 | { | |
d0313fb7 | 1047 | /* Align to the actual starting position of the field. */ |
39bec121 TW |
1048 | current_stag->current_bitfield_offset = 0; |
1049 | ++abs_section_offset; | |
1050 | } | |
d0313fb7 | 1051 | /* Align to longword boundary. */ |
39bec121 TW |
1052 | if (longword_align && (abs_section_offset & 0x1)) |
1053 | ++abs_section_offset; | |
1054 | ||
1055 | if (line_label == NULL) | |
1056 | { | |
1057 | static int fieldno = 0; | |
1058 | char fake[] = ".fake_fieldNNNNN"; | |
f1e7a2c9 | 1059 | |
39bec121 | 1060 | sprintf (fake, ".fake_field%d", fieldno++); |
1aea3bb8 | 1061 | stag_add_field (current_stag, fake, |
9a736b6b NC |
1062 | abs_section_offset - S_GET_VALUE (current_stag->sym), |
1063 | NULL); | |
39bec121 TW |
1064 | } |
1065 | else | |
1066 | { | |
1067 | char label[strlen (S_GET_NAME (line_label) + 1)]; | |
f1e7a2c9 | 1068 | |
39bec121 | 1069 | strcpy (label, S_GET_NAME (line_label)); |
1aea3bb8 | 1070 | stag_add_field (current_stag, label, |
9a736b6b NC |
1071 | abs_section_offset - S_GET_VALUE (current_stag->sym), |
1072 | NULL); | |
39bec121 TW |
1073 | } |
1074 | ||
1075 | if (current_stag->is_union) | |
1076 | { | |
d0313fb7 | 1077 | /* Note we treat the element as if it were an array of COUNT. */ |
1aea3bb8 | 1078 | if (current_stag->size < (unsigned) size * count) |
9a736b6b | 1079 | current_stag->size = size * count; |
39bec121 TW |
1080 | } |
1081 | else | |
1082 | { | |
1aea3bb8 | 1083 | abs_section_offset += (unsigned) size * count; |
39bec121 TW |
1084 | current_stag->current_bitfield_offset = new_bitfield_offset; |
1085 | } | |
1086 | line_label = NULL; | |
1087 | } | |
1088 | ||
d0313fb7 | 1089 | /* Handle .byte, .word. .int, .long and all variants. */ |
9a736b6b | 1090 | |
1aea3bb8 | 1091 | static void |
f1e7a2c9 NC |
1092 | tic54x_cons (type) |
1093 | int type; | |
39bec121 | 1094 | { |
f1e7a2c9 | 1095 | unsigned int c; |
39bec121 TW |
1096 | int octets; |
1097 | ||
d0313fb7 | 1098 | /* If we're within a .struct construct, don't actually allocate space. */ |
39bec121 TW |
1099 | if (current_stag != NULL) |
1100 | { | |
1101 | tic54x_struct_field (type); | |
1102 | return; | |
1103 | } | |
1104 | ||
1105 | #ifdef md_flush_pending_output | |
1106 | md_flush_pending_output (); | |
1107 | #endif | |
1108 | ||
1109 | generate_lineno_debug (); | |
1110 | ||
d0313fb7 | 1111 | /* Align long words to long word boundaries (4 octets). */ |
39bec121 TW |
1112 | if (type == 'l' || type == 'L') |
1113 | { | |
1114 | frag_align (2, 0, 2); | |
d0313fb7 | 1115 | /* If there's a label, assign it to the first allocated word. */ |
39bec121 | 1116 | if (line_label != NULL) |
9a736b6b NC |
1117 | { |
1118 | symbol_set_frag (line_label, frag_now); | |
1119 | S_SET_VALUE (line_label, frag_now_fix ()); | |
1120 | } | |
39bec121 TW |
1121 | } |
1122 | ||
1123 | switch (type) | |
1124 | { | |
1125 | case 'l': | |
1126 | case 'L': | |
1127 | case 'x': | |
1128 | octets = 4; | |
1129 | break; | |
1130 | case 'b': | |
1131 | case 'B': | |
1132 | case 'c': | |
1133 | case 'C': | |
1134 | octets = 1; | |
1135 | break; | |
1136 | default: | |
1137 | octets = 2; | |
1138 | break; | |
1139 | } | |
1140 | ||
1141 | do | |
1142 | { | |
1143 | if (*input_line_pointer == '"') | |
1144 | { | |
1145 | input_line_pointer++; | |
1146 | while (is_a_char (c = next_char_of_string ())) | |
1147 | tic54x_emit_char (c); | |
1148 | know (input_line_pointer[-1] == '\"'); | |
1149 | } | |
1150 | else | |
1151 | { | |
1152 | expressionS exp; | |
1153 | ||
1154 | input_line_pointer = parse_expression (input_line_pointer, &exp); | |
1155 | if (exp.X_op == O_constant) | |
1156 | { | |
9a736b6b NC |
1157 | offsetT value = exp.X_add_number; |
1158 | /* Truncate overflows. */ | |
39bec121 TW |
1159 | switch (octets) |
1160 | { | |
1161 | case 1: | |
9a736b6b NC |
1162 | if ((value > 0 && value > 0xFF) |
1163 | || (value < 0 && value < - 0x100)) | |
1164 | as_warn ("Overflow in expression, truncated to 8 bits"); | |
39bec121 TW |
1165 | break; |
1166 | case 2: | |
9a736b6b NC |
1167 | if ((value > 0 && value > 0xFFFF) |
1168 | || (value < 0 && value < - 0x10000)) | |
1169 | as_warn ("Overflow in expression, truncated to 16 bits"); | |
39bec121 TW |
1170 | break; |
1171 | } | |
1172 | } | |
9a736b6b NC |
1173 | if (exp.X_op != O_constant && octets < 2) |
1174 | { | |
1175 | /* Disallow .byte with a non constant expression that will | |
1176 | require relocation. */ | |
1177 | as_bad (_("Relocatable values require at least WORD storage")); | |
1178 | ignore_rest_of_line (); | |
1179 | return; | |
1180 | } | |
1181 | ||
1182 | if (exp.X_op != O_constant | |
1183 | && amode == c_mode | |
1184 | && octets == 4) | |
1185 | { | |
1186 | /* FIXME -- at one point TI tools used to output REL16 | |
1187 | relocations, but I don't think the latest tools do at all | |
1188 | The current tools output extended relocations regardless of | |
33b7f697 | 1189 | the addressing mode (I actually think that ".c_mode" is |
9a736b6b NC |
1190 | totally ignored in the latest tools). */ |
1191 | amode = far_mode; | |
1192 | emitting_long = 1; | |
1193 | emit_expr (&exp, 4); | |
1194 | emitting_long = 0; | |
1195 | amode = c_mode; | |
1196 | } | |
1197 | else | |
1198 | { | |
1199 | emitting_long = octets == 4; | |
1200 | emit_expr (&exp, (octets == 1) ? 2 : octets); | |
1201 | emitting_long = 0; | |
1202 | } | |
39bec121 TW |
1203 | } |
1204 | } | |
1205 | while (*input_line_pointer++ == ','); | |
1206 | ||
1207 | input_line_pointer--; /* Put terminator back into stream. */ | |
1208 | demand_empty_rest_of_line (); | |
1209 | } | |
1210 | ||
1211 | /* .global <symbol>[,...,<symbolN>] | |
1212 | .def <symbol>[,...,<symbolN>] | |
1213 | .ref <symbol>[,...,<symbolN>] | |
1214 | ||
1aea3bb8 | 1215 | These all identify global symbols. |
39bec121 TW |
1216 | |
1217 | .def means the symbol is defined in the current module and can be accessed | |
1218 | by other files. The symbol should be placed in the symbol table. | |
1219 | ||
1220 | .ref means the symbol is used in the current module but defined in another | |
1221 | module. The linker is to resolve this symbol's definition at link time. | |
1222 | ||
1223 | .global should act as a .ref or .def, as needed. | |
1224 | ||
1aea3bb8 | 1225 | global, def and ref all have symbol storage classes of C_EXT. |
39bec121 TW |
1226 | |
1227 | I can't identify any difference in how the "other" c54x assembler treats | |
d0313fb7 | 1228 | these, so we ignore the type here. */ |
9a736b6b | 1229 | |
39bec121 | 1230 | void |
f1e7a2c9 NC |
1231 | tic54x_global (type) |
1232 | int type; | |
39bec121 TW |
1233 | { |
1234 | char *name; | |
1235 | int c; | |
1236 | symbolS *symbolP; | |
1237 | ||
1238 | if (type == 'r') | |
9a736b6b | 1239 | as_warn (_("Use of .def/.ref is deprecated. Use .global instead")); |
39bec121 TW |
1240 | |
1241 | ILLEGAL_WITHIN_STRUCT (); | |
1242 | ||
1243 | do | |
1244 | { | |
1245 | name = input_line_pointer; | |
1246 | c = get_symbol_end (); | |
1247 | symbolP = symbol_find_or_make (name); | |
1248 | ||
1249 | *input_line_pointer = c; | |
1250 | S_SET_STORAGE_CLASS (symbolP, C_EXT); | |
1251 | if (c == ',') | |
1252 | { | |
1253 | input_line_pointer++; | |
1aea3bb8 | 1254 | if (is_end_of_line[(int) *input_line_pointer]) |
39bec121 TW |
1255 | c = *input_line_pointer; |
1256 | } | |
1257 | } | |
1258 | while (c == ','); | |
1259 | ||
1260 | demand_empty_rest_of_line (); | |
1261 | } | |
1262 | ||
d0313fb7 | 1263 | /* Remove the symbol from the local label hash lookup. */ |
9a736b6b | 1264 | |
39bec121 | 1265 | static void |
f1e7a2c9 NC |
1266 | tic54x_remove_local_label (key, value) |
1267 | const char *key; | |
1268 | PTR value ATTRIBUTE_UNUSED; | |
39bec121 TW |
1269 | { |
1270 | PTR *elem = hash_delete (local_label_hash[macro_level], key); | |
1271 | free (elem); | |
1272 | } | |
1273 | ||
d0313fb7 | 1274 | /* Reset all local labels. */ |
9a736b6b | 1275 | |
1aea3bb8 | 1276 | static void |
f1e7a2c9 NC |
1277 | tic54x_clear_local_labels (ignored) |
1278 | int ignored ATTRIBUTE_UNUSED; | |
39bec121 TW |
1279 | { |
1280 | hash_traverse (local_label_hash[macro_level], tic54x_remove_local_label); | |
1281 | } | |
1282 | ||
d0313fb7 | 1283 | /* .text |
39bec121 TW |
1284 | .data |
1285 | .sect "section name" | |
1286 | ||
1287 | Initialized section | |
1aea3bb8 | 1288 | make sure local labels get cleared when changing sections |
39bec121 TW |
1289 | |
1290 | ARG is 't' for text, 'd' for data, or '*' for a named section | |
1291 | ||
6e917903 TW |
1292 | For compatibility, '*' sections are SEC_CODE if instructions are |
1293 | encountered, or SEC_DATA if not. | |
1294 | */ | |
9a736b6b | 1295 | |
39bec121 | 1296 | static void |
f1e7a2c9 NC |
1297 | tic54x_sect (arg) |
1298 | int arg; | |
39bec121 TW |
1299 | { |
1300 | ILLEGAL_WITHIN_STRUCT (); | |
1301 | ||
d0313fb7 | 1302 | /* Local labels are cleared when changing sections. */ |
39bec121 TW |
1303 | tic54x_clear_local_labels (0); |
1304 | ||
1305 | if (arg == 't') | |
1306 | s_text (0); | |
1307 | else if (arg == 'd') | |
1308 | s_data (0); | |
1309 | else | |
1310 | { | |
1311 | char *name = NULL; | |
1312 | int len; | |
f1e7a2c9 | 1313 | |
d0313fb7 | 1314 | /* If there are quotes, remove them. */ |
39bec121 | 1315 | if (*input_line_pointer == '"') |
9a736b6b NC |
1316 | { |
1317 | name = demand_copy_C_string (&len); | |
1318 | demand_empty_rest_of_line (); | |
1319 | name = strcpy (xmalloc (len + 10), name); | |
1320 | } | |
1aea3bb8 | 1321 | else |
9a736b6b NC |
1322 | { |
1323 | int c; | |
1324 | name = input_line_pointer; | |
1325 | c = get_symbol_end (); | |
6e917903 | 1326 | len = strlen(name); |
9a736b6b NC |
1327 | name = strcpy (xmalloc (len + 10), name); |
1328 | *input_line_pointer = c; | |
1329 | demand_empty_rest_of_line (); | |
1330 | } | |
6e917903 | 1331 | /* Make sure all named initialized sections flagged properly. If we |
f1e7a2c9 | 1332 | encounter instructions, we'll flag it with SEC_CODE as well. */ |
39bec121 TW |
1333 | strcat (name, ",\"w\"\n"); |
1334 | input_scrub_insert_line (name); | |
1335 | obj_coff_section (0); | |
1336 | ||
d0313fb7 | 1337 | /* If there was a line label, make sure that it gets assigned the proper |
9a736b6b NC |
1338 | section. This is for compatibility, even though the actual behavior |
1339 | is not explicitly defined. For consistency, we make .sect behave | |
1340 | like .usect, since that is probably what people expect. */ | |
39bec121 | 1341 | if (line_label != NULL) |
9a736b6b NC |
1342 | { |
1343 | S_SET_SEGMENT (line_label, now_seg); | |
1344 | symbol_set_frag (line_label, frag_now); | |
1345 | S_SET_VALUE (line_label, frag_now_fix ()); | |
1346 | if (S_GET_STORAGE_CLASS (line_label) != C_EXT) | |
1347 | S_SET_STORAGE_CLASS (line_label, C_LABEL); | |
1348 | } | |
39bec121 TW |
1349 | } |
1350 | } | |
1351 | ||
1aea3bb8 | 1352 | /* [symbol] .space space_in_bits |
39bec121 | 1353 | [symbol] .bes space_in_bits |
1aea3bb8 | 1354 | BES puts the symbol at the *last* word allocated |
39bec121 | 1355 | |
d0313fb7 | 1356 | cribbed from s_space. */ |
9a736b6b | 1357 | |
39bec121 | 1358 | static void |
f1e7a2c9 NC |
1359 | tic54x_space (arg) |
1360 | int arg; | |
39bec121 TW |
1361 | { |
1362 | expressionS exp; | |
1363 | char *p = 0; | |
1364 | int octets = 0; | |
1365 | long words; | |
1366 | int bits_per_byte = (OCTETS_PER_BYTE * 8); | |
1367 | int bit_offset = 0; | |
1368 | symbolS *label = line_label; | |
1369 | int bes = arg; | |
1370 | ||
1371 | ILLEGAL_WITHIN_STRUCT (); | |
1372 | ||
1373 | #ifdef md_flush_pending_output | |
1374 | md_flush_pending_output (); | |
1375 | #endif | |
1376 | ||
d0313fb7 | 1377 | /* Read the bit count. */ |
39bec121 TW |
1378 | expression (&exp); |
1379 | ||
d0313fb7 | 1380 | /* Some expressions are unresolvable until later in the assembly pass; |
39bec121 | 1381 | postpone until relaxation/fixup. we also have to postpone if a previous |
d0313fb7 | 1382 | partial allocation has not been completed yet. */ |
39bec121 TW |
1383 | if (exp.X_op != O_constant || frag_bit_offset (frag_now, now_seg) == -1) |
1384 | { | |
1385 | struct bit_info *bi = xmalloc (sizeof (struct bit_info)); | |
1386 | char *p; | |
1387 | ||
1388 | bi->seg = now_seg; | |
1389 | bi->type = bes; | |
1390 | bi->sym = label; | |
1aea3bb8 | 1391 | p = frag_var (rs_machine_dependent, |
9a736b6b NC |
1392 | 65536 * 2, 1, (relax_substateT) 0, |
1393 | make_expr_symbol (&exp), (offsetT) 0, | |
1394 | (char *) bi); | |
39bec121 | 1395 | if (p) |
9a736b6b | 1396 | *p = 0; |
39bec121 TW |
1397 | |
1398 | return; | |
1399 | } | |
1400 | ||
d0313fb7 NC |
1401 | /* Reduce the required size by any bit offsets currently left over |
1402 | from a previous .space/.bes/.field directive. */ | |
39bec121 TW |
1403 | bit_offset = frag_now->tc_frag_data; |
1404 | if (bit_offset != 0 && bit_offset < 16) | |
1405 | { | |
1406 | int spare_bits = bits_per_byte - bit_offset; | |
f1e7a2c9 | 1407 | |
39bec121 | 1408 | if (spare_bits >= exp.X_add_number) |
9a736b6b NC |
1409 | { |
1410 | /* Don't have to do anything; sufficient bits have already been | |
1411 | allocated; just point the label to the right place. */ | |
1412 | if (label != NULL) | |
1413 | { | |
1414 | symbol_set_frag (label, frag_now); | |
1415 | S_SET_VALUE (label, frag_now_fix () - 1); | |
1416 | label = NULL; | |
1417 | } | |
1418 | frag_now->tc_frag_data += exp.X_add_number; | |
1419 | goto getout; | |
1420 | } | |
39bec121 | 1421 | exp.X_add_number -= spare_bits; |
d0313fb7 | 1422 | /* Set the label to point to the first word allocated, which in this |
9a736b6b | 1423 | case is the previous word, which was only partially filled. */ |
39bec121 | 1424 | if (!bes && label != NULL) |
9a736b6b NC |
1425 | { |
1426 | symbol_set_frag (label, frag_now); | |
1427 | S_SET_VALUE (label, frag_now_fix () - 1); | |
1428 | label = NULL; | |
1429 | } | |
39bec121 | 1430 | } |
d0313fb7 | 1431 | /* Convert bits to bytes/words and octets, rounding up. */ |
39bec121 | 1432 | words = ((exp.X_add_number + bits_per_byte - 1) / bits_per_byte); |
d0313fb7 | 1433 | /* How many do we have left over? */ |
39bec121 TW |
1434 | bit_offset = exp.X_add_number % bits_per_byte; |
1435 | octets = words * OCTETS_PER_BYTE; | |
1436 | if (octets < 0) | |
1437 | { | |
1438 | as_warn (_(".space/.bes repeat count is negative, ignored")); | |
1439 | goto getout; | |
1440 | } | |
1441 | else if (octets == 0) | |
1442 | { | |
1443 | as_warn (_(".space/.bes repeat count is zero, ignored")); | |
1444 | goto getout; | |
1445 | } | |
1aea3bb8 | 1446 | |
39bec121 TW |
1447 | /* If we are in the absolute section, just bump the offset. */ |
1448 | if (now_seg == absolute_section) | |
1449 | { | |
1450 | abs_section_offset += words; | |
1451 | if (bes && label != NULL) | |
9a736b6b | 1452 | S_SET_VALUE (label, abs_section_offset - 1); |
39bec121 TW |
1453 | frag_now->tc_frag_data = bit_offset; |
1454 | goto getout; | |
1455 | } | |
1aea3bb8 | 1456 | |
39bec121 | 1457 | if (!need_pass_2) |
1aea3bb8 | 1458 | p = frag_var (rs_fill, 1, 1, |
9a736b6b NC |
1459 | (relax_substateT) 0, (symbolS *) 0, |
1460 | (offsetT) octets, (char *) 0); | |
39bec121 | 1461 | |
d0313fb7 | 1462 | /* Make note of how many bits of this word we've allocated so far. */ |
39bec121 TW |
1463 | frag_now->tc_frag_data = bit_offset; |
1464 | ||
d0313fb7 | 1465 | /* .bes puts label at *last* word allocated. */ |
39bec121 TW |
1466 | if (bes && label != NULL) |
1467 | { | |
1468 | symbol_set_frag (label, frag_now); | |
1aea3bb8 | 1469 | S_SET_VALUE (label, frag_now_fix () - 1); |
39bec121 | 1470 | } |
1aea3bb8 | 1471 | |
39bec121 TW |
1472 | if (p) |
1473 | *p = 0; | |
1474 | ||
1475 | getout: | |
1476 | ||
1477 | demand_empty_rest_of_line (); | |
1478 | } | |
1479 | ||
1aea3bb8 | 1480 | /* [symbol] .usect "section-name", size-in-words |
9a736b6b | 1481 | [, [blocking-flag] [, alignment-flag]] |
39bec121 | 1482 | |
33b7f697 | 1483 | Uninitialized section. |
39bec121 TW |
1484 | Non-zero blocking means that if the section would cross a page (128-word) |
1485 | boundary, it will be page-aligned. | |
1486 | Non-zero alignment aligns on a longword boundary. | |
1487 | ||
d0313fb7 | 1488 | Has no effect on the current section. */ |
9a736b6b | 1489 | |
1aea3bb8 | 1490 | static void |
f1e7a2c9 NC |
1491 | tic54x_usect (x) |
1492 | int x ATTRIBUTE_UNUSED; | |
39bec121 TW |
1493 | { |
1494 | char c; | |
1495 | char *name; | |
1496 | char *section_name; | |
1497 | char *p; | |
1498 | segT seg; | |
1499 | int size, blocking_flag, alignment_flag; | |
1500 | segT current_seg; | |
1501 | subsegT current_subseg; | |
1502 | flagword flags; | |
1503 | ||
1504 | ILLEGAL_WITHIN_STRUCT (); | |
1505 | ||
9a736b6b NC |
1506 | current_seg = now_seg; /* Save current seg. */ |
1507 | current_subseg = now_subseg; /* Save current subseg. */ | |
39bec121 TW |
1508 | |
1509 | if (*input_line_pointer == '"') | |
1510 | input_line_pointer++; | |
1511 | section_name = input_line_pointer; | |
1512 | c = get_symbol_end (); /* Get terminator. */ | |
1513 | input_line_pointer++; /* Skip null symbol terminator. */ | |
1514 | name = xmalloc (input_line_pointer - section_name + 1); | |
1515 | strcpy (name, section_name); | |
1516 | ||
1517 | if (*input_line_pointer == ',') | |
1518 | ++input_line_pointer; | |
1519 | else if (c != ',') | |
1520 | { | |
1521 | as_bad (_("Missing size argument")); | |
1522 | ignore_rest_of_line (); | |
1523 | return; | |
1524 | } | |
1525 | ||
1526 | size = get_absolute_expression (); | |
1527 | ||
d0313fb7 | 1528 | /* Read a possibly present third argument (blocking flag). */ |
39bec121 TW |
1529 | if (*input_line_pointer == ',') |
1530 | { | |
1531 | ++input_line_pointer; | |
1532 | if (*input_line_pointer != ',') | |
9a736b6b | 1533 | blocking_flag = get_absolute_expression (); |
39bec121 | 1534 | else |
9a736b6b | 1535 | blocking_flag = 0; |
39bec121 | 1536 | |
d0313fb7 | 1537 | /* Read a possibly present fourth argument (alignment flag). */ |
39bec121 | 1538 | if (*input_line_pointer == ',') |
9a736b6b NC |
1539 | { |
1540 | ++input_line_pointer; | |
1541 | alignment_flag = get_absolute_expression (); | |
1542 | } | |
39bec121 | 1543 | else |
9a736b6b | 1544 | alignment_flag = 0; |
39bec121 TW |
1545 | } |
1546 | else | |
1547 | blocking_flag = alignment_flag = 0; | |
1548 | ||
1549 | seg = subseg_new (name, 0); | |
1550 | flags = bfd_get_section_flags (stdoutput, seg) | SEC_ALLOC; | |
1551 | ||
1552 | if (alignment_flag) | |
1553 | { | |
d0313fb7 | 1554 | /* s_align eats end of line; restore it. */ |
39bec121 TW |
1555 | s_align_bytes (4); |
1556 | --input_line_pointer; | |
1557 | } | |
1558 | ||
1559 | if (line_label != NULL) | |
1560 | { | |
1561 | S_SET_SEGMENT (line_label, seg); | |
1562 | symbol_set_frag (line_label, frag_now); | |
1563 | S_SET_VALUE (line_label, frag_now_fix ()); | |
9a736b6b | 1564 | /* Set scl to label, since that's what TI does. */ |
39bec121 | 1565 | if (S_GET_STORAGE_CLASS (line_label) != C_EXT) |
9a736b6b | 1566 | S_SET_STORAGE_CLASS (line_label, C_LABEL); |
39bec121 TW |
1567 | } |
1568 | ||
1569 | seg_info (seg)->bss = 1; /* Uninitialized data. */ | |
1570 | ||
1aea3bb8 | 1571 | p = frag_var (rs_fill, 1, 1, |
9a736b6b NC |
1572 | (relax_substateT) 0, (symbolS *) line_label, |
1573 | size * OCTETS_PER_BYTE, (char *) 0); | |
39bec121 TW |
1574 | *p = 0; |
1575 | ||
1576 | if (blocking_flag) | |
1577 | flags |= SEC_BLOCK; | |
1578 | ||
1579 | if (!bfd_set_section_flags (stdoutput, seg, flags)) | |
1580 | as_warn ("Error setting flags for \"%s\": %s", name, | |
1581 | bfd_errmsg (bfd_get_error ())); | |
1582 | ||
1583 | subseg_set (current_seg, current_subseg); /* Restore current seg. */ | |
1584 | demand_empty_rest_of_line (); | |
1aea3bb8 | 1585 | } |
39bec121 TW |
1586 | |
1587 | static enum cpu_version | |
f1e7a2c9 NC |
1588 | lookup_version (ver) |
1589 | const char *ver; | |
39bec121 TW |
1590 | { |
1591 | enum cpu_version version = VNONE; | |
1aea3bb8 | 1592 | |
39bec121 TW |
1593 | if (ver[0] == '5' && ver[1] == '4') |
1594 | { | |
9a736b6b NC |
1595 | if (strlen (ver) == 3 |
1596 | && (ver[2] == '1' || ver[2] == '2' || ver[2] == '3' | |
1597 | || ver[2] == '5' || ver[2] == '8' || ver[2] == '9')) | |
1598 | version = ver[2] - '0'; | |
1599 | else if (strlen (ver) == 5 | |
3882b010 L |
1600 | && TOUPPER (ver[3]) == 'L' |
1601 | && TOUPPER (ver[4]) == 'P' | |
9a736b6b NC |
1602 | && (ver[2] == '5' || ver[2] == '6')) |
1603 | version = ver[2] - '0' + 10; | |
39bec121 TW |
1604 | } |
1605 | ||
1606 | return version; | |
1607 | } | |
1608 | ||
1609 | static void | |
f1e7a2c9 NC |
1610 | set_cpu (version) |
1611 | enum cpu_version version; | |
39bec121 TW |
1612 | { |
1613 | cpu = version; | |
1614 | if (version == V545LP || version == V546LP) | |
1615 | { | |
1616 | symbolS *symbolP = symbol_new ("__allow_lp", absolute_section, | |
9a736b6b | 1617 | (valueT) 1, &zero_address_frag); |
39bec121 TW |
1618 | SF_SET_LOCAL (symbolP); |
1619 | symbol_table_insert (symbolP); | |
1620 | } | |
1621 | } | |
1622 | ||
1aea3bb8 | 1623 | /* .version cpu-version |
39bec121 TW |
1624 | cpu-version may be one of the following: |
1625 | 541 | |
1626 | 542 | |
1627 | 543 | |
1628 | 545 | |
1629 | 545LP | |
1630 | 546LP | |
1631 | 548 | |
1632 | 549 | |
1633 | ||
d0313fb7 | 1634 | This is for compatibility only. It currently has no affect on assembly. */ |
39bec121 | 1635 | static int cpu_needs_set = 1; |
d0313fb7 | 1636 | |
1aea3bb8 | 1637 | static void |
f1e7a2c9 NC |
1638 | tic54x_version (x) |
1639 | int x ATTRIBUTE_UNUSED; | |
39bec121 TW |
1640 | { |
1641 | enum cpu_version version = VNONE; | |
1642 | enum cpu_version old_version = cpu; | |
1643 | int c; | |
1644 | char *ver; | |
1645 | ||
1646 | ILLEGAL_WITHIN_STRUCT (); | |
1647 | ||
1648 | SKIP_WHITESPACE (); | |
1649 | ver = input_line_pointer; | |
1aea3bb8 | 1650 | while (!is_end_of_line[(int) *input_line_pointer]) |
39bec121 TW |
1651 | ++input_line_pointer; |
1652 | c = *input_line_pointer; | |
1653 | *input_line_pointer = 0; | |
1aea3bb8 | 1654 | |
39bec121 TW |
1655 | version = lookup_version (ver); |
1656 | ||
1657 | if (cpu != VNONE && cpu != version) | |
1658 | as_warn (_("CPU version has already been set")); | |
1659 | ||
1660 | if (version == VNONE) | |
1661 | { | |
1662 | as_bad (_("Unrecognized version '%s'"), ver); | |
1663 | ignore_rest_of_line (); | |
1664 | return; | |
1665 | } | |
1666 | else if (assembly_begun && version != old_version) | |
1667 | { | |
1668 | as_bad (_("Changing of CPU version on the fly not supported")); | |
1669 | ignore_rest_of_line (); | |
1670 | return; | |
1671 | } | |
1672 | ||
1673 | set_cpu (version); | |
1674 | ||
1675 | *input_line_pointer = c; | |
1676 | demand_empty_rest_of_line (); | |
1677 | } | |
1678 | ||
d0313fb7 | 1679 | /* 'f' = float, 'x' = xfloat, 'd' = double, 'l' = ldouble. */ |
9a736b6b | 1680 | |
39bec121 | 1681 | static void |
f1e7a2c9 NC |
1682 | tic54x_float_cons (type) |
1683 | int type; | |
39bec121 TW |
1684 | { |
1685 | if (current_stag != 0) | |
d0313fb7 | 1686 | tic54x_struct_field ('f'); |
39bec121 TW |
1687 | |
1688 | #ifdef md_flush_pending_output | |
1689 | md_flush_pending_output (); | |
1690 | #endif | |
1aea3bb8 | 1691 | |
d0313fb7 | 1692 | /* Align to long word boundary (4 octets) unless it's ".xfloat". */ |
39bec121 TW |
1693 | if (type != 'x') |
1694 | { | |
1695 | frag_align (2, 0, 2); | |
d0313fb7 | 1696 | /* If there's a label, assign it to the first allocated word. */ |
39bec121 | 1697 | if (line_label != NULL) |
9a736b6b NC |
1698 | { |
1699 | symbol_set_frag (line_label, frag_now); | |
1700 | S_SET_VALUE (line_label, frag_now_fix ()); | |
1701 | } | |
39bec121 TW |
1702 | } |
1703 | ||
1704 | float_cons ('f'); | |
1705 | } | |
1706 | ||
1aea3bb8 | 1707 | /* The argument is capitalized if it should be zero-terminated |
39bec121 | 1708 | 's' is normal string with upper 8-bits zero-filled, 'p' is packed. |
5d6255fe | 1709 | Code copied from stringer, and slightly modified so that strings are packed |
d0313fb7 | 1710 | and encoded into the correct octets. */ |
9a736b6b | 1711 | |
39bec121 | 1712 | static void |
f1e7a2c9 NC |
1713 | tic54x_stringer (type) |
1714 | int type; | |
39bec121 | 1715 | { |
f1e7a2c9 | 1716 | unsigned int c; |
39bec121 TW |
1717 | char *start; |
1718 | int append_zero = type == 'S' || type == 'P'; | |
1719 | int packed = type == 'p' || type == 'P'; | |
d0313fb7 | 1720 | int last_char = -1; /* Packed strings need two bytes at a time to encode. */ |
39bec121 TW |
1721 | |
1722 | if (current_stag != NULL) | |
1723 | { | |
1724 | tic54x_struct_field ('*'); | |
1725 | return; | |
1726 | } | |
1727 | ||
1728 | #ifdef md_flush_pending_output | |
1729 | md_flush_pending_output (); | |
1730 | #endif | |
1731 | ||
1dab94dd | 1732 | c = ','; /* Do loop. */ |
39bec121 TW |
1733 | while (c == ',') |
1734 | { | |
1735 | SKIP_WHITESPACE (); | |
1736 | switch (*input_line_pointer) | |
1737 | { | |
9a736b6b NC |
1738 | default: |
1739 | { | |
1740 | unsigned short value = get_absolute_expression (); | |
1741 | FRAG_APPEND_1_CHAR ( value & 0xFF); | |
1742 | FRAG_APPEND_1_CHAR ((value >> 8) & 0xFF); | |
1743 | break; | |
1744 | } | |
39bec121 | 1745 | case '\"': |
9a736b6b | 1746 | ++input_line_pointer; /* -> 1st char of string. */ |
39bec121 TW |
1747 | start = input_line_pointer; |
1748 | while (is_a_char (c = next_char_of_string ())) | |
1749 | { | |
9a736b6b NC |
1750 | if (!packed) |
1751 | { | |
1752 | FRAG_APPEND_1_CHAR (c); | |
1753 | FRAG_APPEND_1_CHAR (0); | |
1754 | } | |
1755 | else | |
1756 | { | |
1757 | /* Packed strings are filled MS octet first. */ | |
1758 | if (last_char == -1) | |
1759 | last_char = c; | |
1760 | else | |
1761 | { | |
1762 | FRAG_APPEND_1_CHAR (c); | |
1763 | FRAG_APPEND_1_CHAR (last_char); | |
1764 | last_char = -1; | |
1765 | } | |
1766 | } | |
39bec121 TW |
1767 | } |
1768 | if (append_zero) | |
9a736b6b NC |
1769 | { |
1770 | if (packed && last_char != -1) | |
1771 | { | |
1772 | FRAG_APPEND_1_CHAR (0); | |
1773 | FRAG_APPEND_1_CHAR (last_char); | |
1774 | last_char = -1; | |
1775 | } | |
1776 | else | |
1777 | { | |
1778 | FRAG_APPEND_1_CHAR (0); | |
1779 | FRAG_APPEND_1_CHAR (0); | |
1780 | } | |
1781 | } | |
39bec121 TW |
1782 | know (input_line_pointer[-1] == '\"'); |
1783 | break; | |
1784 | } | |
1785 | SKIP_WHITESPACE (); | |
1786 | c = *input_line_pointer; | |
1787 | if (!is_end_of_line[c]) | |
9a736b6b | 1788 | ++input_line_pointer; |
39bec121 TW |
1789 | } |
1790 | ||
d0313fb7 | 1791 | /* Finish up any leftover packed string. */ |
39bec121 TW |
1792 | if (packed && last_char != -1) |
1793 | { | |
1794 | FRAG_APPEND_1_CHAR (0); | |
1795 | FRAG_APPEND_1_CHAR (last_char); | |
1796 | } | |
1797 | demand_empty_rest_of_line (); | |
1798 | } | |
1799 | ||
1800 | static void | |
f1e7a2c9 NC |
1801 | tic54x_p2align (arg) |
1802 | int arg ATTRIBUTE_UNUSED; | |
39bec121 TW |
1803 | { |
1804 | as_bad (_("p2align not supported on this target")); | |
1805 | } | |
1806 | ||
1807 | static void | |
f1e7a2c9 NC |
1808 | tic54x_align_words (arg) |
1809 | int arg; | |
39bec121 | 1810 | { |
d0313fb7 | 1811 | /* Only ".align" with no argument is allowed within .struct/.union. */ |
39bec121 TW |
1812 | int count = arg; |
1813 | ||
1aea3bb8 | 1814 | if (!is_end_of_line[(int) *input_line_pointer]) |
39bec121 TW |
1815 | { |
1816 | if (arg == 2) | |
9a736b6b | 1817 | as_warn (_("Argument to .even ignored")); |
39bec121 | 1818 | else |
9a736b6b | 1819 | count = get_absolute_expression (); |
39bec121 TW |
1820 | } |
1821 | ||
1822 | if (current_stag != NULL && arg == 128) | |
1823 | { | |
1824 | if (current_stag->current_bitfield_offset != 0) | |
9a736b6b NC |
1825 | { |
1826 | current_stag->current_bitfield_offset = 0; | |
1827 | ++abs_section_offset; | |
1828 | } | |
39bec121 TW |
1829 | demand_empty_rest_of_line (); |
1830 | return; | |
1831 | } | |
1832 | ||
1833 | ILLEGAL_WITHIN_STRUCT (); | |
1834 | ||
1835 | s_align_bytes (count << 1); | |
1836 | } | |
1837 | ||
d0313fb7 | 1838 | /* Initialize multiple-bit fields withing a single word of memory. */ |
9a736b6b | 1839 | |
39bec121 | 1840 | static void |
f1e7a2c9 NC |
1841 | tic54x_field (ignore) |
1842 | int ignore ATTRIBUTE_UNUSED; | |
39bec121 TW |
1843 | { |
1844 | expressionS exp; | |
1845 | int size = 16; | |
1846 | char *p; | |
1847 | valueT value; | |
1848 | symbolS *label = line_label; | |
1849 | ||
1850 | if (current_stag != NULL) | |
1851 | { | |
1852 | tic54x_struct_field ('.'); | |
1853 | return; | |
1854 | } | |
1855 | ||
1856 | input_line_pointer = parse_expression (input_line_pointer, &exp); | |
1857 | ||
1858 | if (*input_line_pointer == ',') | |
1859 | { | |
1860 | ++input_line_pointer; | |
1861 | size = get_absolute_expression (); | |
1862 | if (size < 1 || size > 32) | |
9a736b6b NC |
1863 | { |
1864 | as_bad (_("Invalid field size, must be from 1 to 32")); | |
1865 | ignore_rest_of_line (); | |
1866 | return; | |
1867 | } | |
39bec121 TW |
1868 | } |
1869 | ||
d0313fb7 | 1870 | /* Truncate values to the field width. */ |
39bec121 TW |
1871 | if (exp.X_op != O_constant) |
1872 | { | |
9a736b6b NC |
1873 | /* If the expression value is relocatable, the field size *must* |
1874 | be 16. */ | |
39bec121 | 1875 | if (size != 16) |
9a736b6b NC |
1876 | { |
1877 | as_bad (_("field size must be 16 when value is relocatable")); | |
1878 | ignore_rest_of_line (); | |
1879 | return; | |
1880 | } | |
39bec121 TW |
1881 | |
1882 | frag_now->tc_frag_data = 0; | |
1883 | emit_expr (&exp, 2); | |
1884 | } | |
1885 | else | |
1886 | { | |
1887 | unsigned long fmask = (size == 32) ? 0xFFFFFFFF : (1ul << size) - 1; | |
f1e7a2c9 | 1888 | |
39bec121 TW |
1889 | value = exp.X_add_number; |
1890 | exp.X_add_number &= fmask; | |
1aea3bb8 | 1891 | if (value != (valueT) exp.X_add_number) |
9a736b6b | 1892 | as_warn (_("field value truncated")); |
39bec121 | 1893 | value = exp.X_add_number; |
d0313fb7 | 1894 | /* Bits are stored MS first. */ |
39bec121 | 1895 | while (size >= 16) |
9a736b6b NC |
1896 | { |
1897 | frag_now->tc_frag_data = 0; | |
1898 | p = frag_more (2); | |
1899 | md_number_to_chars (p, (value >> (size - 16)) & 0xFFFF, 2); | |
1900 | size -= 16; | |
1901 | } | |
39bec121 | 1902 | if (size > 0) |
9a736b6b NC |
1903 | { |
1904 | int bit_offset = frag_bit_offset (frag_now, now_seg); | |
f1e7a2c9 | 1905 | |
9a736b6b NC |
1906 | fragS *alloc_frag = bit_offset_frag (frag_now, now_seg); |
1907 | if (bit_offset == -1) | |
1908 | { | |
1909 | struct bit_info *bi = xmalloc (sizeof (struct bit_info)); | |
1910 | /* We don't know the previous offset at this time, so store the | |
1911 | info we need and figure it out later. */ | |
1912 | expressionS size_exp; | |
f1e7a2c9 | 1913 | |
9a736b6b NC |
1914 | size_exp.X_op = O_constant; |
1915 | size_exp.X_add_number = size; | |
1916 | bi->seg = now_seg; | |
1917 | bi->type = TYPE_FIELD; | |
1918 | bi->value = value; | |
1919 | p = frag_var (rs_machine_dependent, | |
1920 | 4, 1, (relax_substateT) 0, | |
1921 | make_expr_symbol (&size_exp), (offsetT) 0, | |
1922 | (char *) bi); | |
1923 | goto getout; | |
1924 | } | |
1925 | else if (bit_offset == 0 || bit_offset + size > 16) | |
1926 | { | |
1927 | /* Align a new field. */ | |
1928 | p = frag_more (2); | |
1929 | frag_now->tc_frag_data = 0; | |
1930 | alloc_frag = frag_now; | |
1931 | } | |
1932 | else | |
1933 | { | |
1934 | /* Put the new value entirely within the existing one. */ | |
1935 | p = alloc_frag == frag_now ? | |
1936 | frag_now->fr_literal + frag_now_fix_octets () - 2 : | |
1937 | alloc_frag->fr_literal; | |
1938 | if (label != NULL) | |
1939 | { | |
1940 | symbol_set_frag (label, alloc_frag); | |
1941 | if (alloc_frag == frag_now) | |
1942 | S_SET_VALUE (label, frag_now_fix () - 1); | |
1943 | label = NULL; | |
1944 | } | |
1945 | } | |
1946 | value <<= 16 - alloc_frag->tc_frag_data - size; | |
1947 | ||
1948 | /* OR in existing value. */ | |
1949 | if (alloc_frag->tc_frag_data) | |
1950 | value |= ((unsigned short) p[1] << 8) | p[0]; | |
1951 | md_number_to_chars (p, value, 2); | |
1952 | alloc_frag->tc_frag_data += size; | |
1953 | if (alloc_frag->tc_frag_data == 16) | |
1954 | alloc_frag->tc_frag_data = 0; | |
1955 | } | |
39bec121 TW |
1956 | } |
1957 | getout: | |
1958 | demand_empty_rest_of_line (); | |
1959 | } | |
1960 | ||
1961 | /* Ideally, we want to check SEC_LOAD and SEC_HAS_CONTENTS, but those aren't | |
d0313fb7 | 1962 | available yet. seg_info ()->bss is the next best thing. */ |
9a736b6b | 1963 | |
39bec121 | 1964 | static int |
f1e7a2c9 NC |
1965 | tic54x_initialized_section (seg) |
1966 | segT seg; | |
39bec121 TW |
1967 | { |
1968 | return !seg_info (seg)->bss; | |
1969 | } | |
1970 | ||
1aea3bb8 | 1971 | /* .clink ["section name"] |
39bec121 TW |
1972 | |
1973 | Marks the section as conditionally linked (link only if contents are | |
1974 | referenced elsewhere. | |
1975 | Without a name, refers to the current initialized section. | |
d0313fb7 | 1976 | Name is required for uninitialized sections. */ |
9a736b6b | 1977 | |
39bec121 | 1978 | static void |
f1e7a2c9 NC |
1979 | tic54x_clink (ignored) |
1980 | int ignored ATTRIBUTE_UNUSED; | |
39bec121 TW |
1981 | { |
1982 | segT seg = now_seg; | |
1983 | ||
1984 | ILLEGAL_WITHIN_STRUCT (); | |
1985 | ||
1986 | if (*input_line_pointer == '\"') | |
1987 | { | |
1988 | char *section_name = ++input_line_pointer; | |
1989 | char *name; | |
f1e7a2c9 | 1990 | |
39bec121 | 1991 | while (is_a_char (next_char_of_string ())) |
9a736b6b | 1992 | ; |
39bec121 TW |
1993 | know (input_line_pointer[-1] == '\"'); |
1994 | input_line_pointer[-1] = 0; | |
1995 | name = xmalloc (input_line_pointer - section_name + 1); | |
1996 | strcpy (name, section_name); | |
1997 | ||
1998 | seg = bfd_get_section_by_name (stdoutput, name); | |
1999 | if (seg == NULL) | |
9a736b6b NC |
2000 | { |
2001 | as_bad (_("Unrecognized section '%s'"), section_name); | |
2002 | ignore_rest_of_line (); | |
2003 | return; | |
2004 | } | |
39bec121 TW |
2005 | } |
2006 | else | |
2007 | { | |
2008 | if (!tic54x_initialized_section (seg)) | |
9a736b6b NC |
2009 | { |
2010 | as_bad (_("Current section is unitialized, " | |
2011 | "section name required for .clink")); | |
2012 | ignore_rest_of_line (); | |
2013 | return; | |
2014 | } | |
39bec121 TW |
2015 | } |
2016 | ||
2017 | seg->flags |= SEC_CLINK; | |
2018 | ||
2019 | demand_empty_rest_of_line (); | |
2020 | } | |
2021 | ||
d0313fb7 | 2022 | /* Change the default include directory to be the current source file's |
39bec121 | 2023 | directory, instead of the current working directory. If DOT is non-zero, |
d0313fb7 | 2024 | set to "." instead. */ |
9a736b6b | 2025 | |
39bec121 | 2026 | static void |
f1e7a2c9 NC |
2027 | tic54x_set_default_include (dot) |
2028 | int dot; | |
39bec121 TW |
2029 | { |
2030 | char *dir = "."; | |
2031 | char *tmp = NULL; | |
1aea3bb8 | 2032 | |
39bec121 TW |
2033 | if (!dot) |
2034 | { | |
2035 | char *curfile; | |
2036 | unsigned lineno; | |
1aea3bb8 | 2037 | |
39bec121 | 2038 | as_where (&curfile, &lineno); |
1aea3bb8 | 2039 | dir = strcpy (xmalloc (strlen (curfile) + 1), curfile); |
39bec121 TW |
2040 | tmp = strrchr (dir, '/'); |
2041 | } | |
2042 | if (tmp != NULL) | |
2043 | { | |
2044 | int len; | |
f1e7a2c9 | 2045 | |
39bec121 TW |
2046 | *tmp = '\0'; |
2047 | len = strlen (dir); | |
2048 | if (include_dir_count == 0) | |
9a736b6b NC |
2049 | { |
2050 | include_dirs = (char **) xmalloc (sizeof (*include_dirs)); | |
2051 | include_dir_count = 1; | |
2052 | } | |
39bec121 TW |
2053 | include_dirs[0] = dir; |
2054 | if (len > include_dir_maxlen) | |
9a736b6b | 2055 | include_dir_maxlen = len; |
39bec121 TW |
2056 | } |
2057 | else if (include_dirs != NULL) | |
2058 | include_dirs[0] = "."; | |
2059 | } | |
2060 | ||
1aea3bb8 | 2061 | /* .include "filename" | filename |
39bec121 TW |
2062 | .copy "filename" | filename |
2063 | ||
1aea3bb8 | 2064 | FIXME 'include' file should be omitted from any output listing, |
39bec121 TW |
2065 | 'copy' should be included in any output listing |
2066 | FIXME -- prevent any included files from changing listing (compat only) | |
2067 | FIXME -- need to include source file directory in search path; what's a | |
2068 | good way to do this? | |
2069 | ||
d0313fb7 | 2070 | Entering/exiting included/copied file clears all local labels. */ |
9a736b6b | 2071 | |
39bec121 | 2072 | static void |
f1e7a2c9 NC |
2073 | tic54x_include (ignored) |
2074 | int ignored ATTRIBUTE_UNUSED; | |
39bec121 TW |
2075 | { |
2076 | char newblock[] = " .newblock\n"; | |
2077 | char *filename; | |
2078 | char *input; | |
2079 | int len, c = -1; | |
2080 | ||
2081 | ILLEGAL_WITHIN_STRUCT (); | |
1aea3bb8 | 2082 | |
39bec121 TW |
2083 | SKIP_WHITESPACE (); |
2084 | ||
2085 | if (*input_line_pointer == '"') | |
2086 | { | |
2087 | filename = demand_copy_C_string (&len); | |
2088 | demand_empty_rest_of_line (); | |
2089 | } | |
2090 | else | |
2091 | { | |
2092 | filename = input_line_pointer; | |
1aea3bb8 | 2093 | while (!is_end_of_line[(int) *input_line_pointer]) |
9a736b6b | 2094 | ++input_line_pointer; |
39bec121 TW |
2095 | c = *input_line_pointer; |
2096 | *input_line_pointer = '\0'; | |
1aea3bb8 | 2097 | filename = strcpy (xmalloc (strlen (filename) + 1), filename); |
39bec121 TW |
2098 | *input_line_pointer = c; |
2099 | demand_empty_rest_of_line (); | |
2100 | } | |
2101 | /* Insert a partial line with the filename (for the sake of s_include) | |
2102 | and a .newblock. | |
2103 | The included file will be inserted before the newblock, so that the | |
d0313fb7 | 2104 | newblock is executed after the included file is processed. */ |
39bec121 TW |
2105 | input = xmalloc (sizeof (newblock) + strlen (filename) + 4); |
2106 | sprintf (input, "\"%s\"\n%s", filename, newblock); | |
2107 | input_scrub_insert_line (input); | |
2108 | ||
2109 | tic54x_clear_local_labels (0); | |
2110 | ||
2111 | tic54x_set_default_include (0); | |
2112 | ||
2113 | s_include (0); | |
2114 | } | |
2115 | ||
2116 | static void | |
f1e7a2c9 NC |
2117 | tic54x_message (type) |
2118 | int type; | |
39bec121 TW |
2119 | { |
2120 | char *msg; | |
2121 | char c; | |
2122 | int len; | |
2123 | ||
2124 | ILLEGAL_WITHIN_STRUCT (); | |
2125 | ||
2126 | if (*input_line_pointer == '"') | |
2127 | msg = demand_copy_C_string (&len); | |
2128 | else | |
2129 | { | |
2130 | msg = input_line_pointer; | |
1aea3bb8 | 2131 | while (!is_end_of_line[(int) *input_line_pointer]) |
9a736b6b | 2132 | ++input_line_pointer; |
39bec121 TW |
2133 | c = *input_line_pointer; |
2134 | *input_line_pointer = 0; | |
2135 | msg = strcpy (xmalloc (strlen (msg) + 1), msg); | |
2136 | *input_line_pointer = c; | |
2137 | } | |
2138 | ||
2139 | switch (type) | |
2140 | { | |
2141 | case 'm': | |
2142 | as_tsktsk ("%s", msg); | |
2143 | break; | |
2144 | case 'w': | |
2145 | as_warn ("%s", msg); | |
2146 | break; | |
2147 | case 'e': | |
2148 | as_bad ("%s", msg); | |
2149 | break; | |
2150 | } | |
2151 | ||
2152 | demand_empty_rest_of_line (); | |
2153 | } | |
2154 | ||
1aea3bb8 | 2155 | /* .label <symbol> |
9a736b6b | 2156 | Define a special symbol that refers to the loadtime address rather than the |
39bec121 TW |
2157 | runtime address within the current section. |
2158 | ||
2159 | This symbol gets a special storage class so that when it is resolved, it is | |
2160 | resolved relative to the load address (lma) of the section rather than the | |
d0313fb7 | 2161 | run address (vma). */ |
9a736b6b | 2162 | |
39bec121 | 2163 | static void |
f1e7a2c9 NC |
2164 | tic54x_label (ignored) |
2165 | int ignored ATTRIBUTE_UNUSED; | |
39bec121 TW |
2166 | { |
2167 | char *name = input_line_pointer; | |
2168 | symbolS *symbolP; | |
2169 | int c; | |
2170 | ||
2171 | ILLEGAL_WITHIN_STRUCT (); | |
2172 | ||
2173 | c = get_symbol_end (); | |
2174 | symbolP = colon (name); | |
2175 | S_SET_STORAGE_CLASS (symbolP, C_STATLAB); | |
2176 | ||
2177 | *input_line_pointer = c; | |
2178 | demand_empty_rest_of_line (); | |
2179 | } | |
2180 | ||
d0313fb7 | 2181 | /* .mmregs |
9a736b6b NC |
2182 | Install all memory-mapped register names into the symbol table as |
2183 | absolute local symbols. */ | |
2184 | ||
39bec121 | 2185 | static void |
f1e7a2c9 NC |
2186 | tic54x_mmregs (ignored) |
2187 | int ignored ATTRIBUTE_UNUSED; | |
39bec121 TW |
2188 | { |
2189 | symbol *sym; | |
2190 | ||
2191 | ILLEGAL_WITHIN_STRUCT (); | |
2192 | ||
1aea3bb8 | 2193 | for (sym = (symbol *) mmregs; sym->name; sym++) |
39bec121 TW |
2194 | { |
2195 | symbolS *symbolP = symbol_new (sym->name, absolute_section, | |
9a736b6b | 2196 | (valueT) sym->value, &zero_address_frag); |
39bec121 TW |
2197 | SF_SET_LOCAL (symbolP); |
2198 | symbol_table_insert (symbolP); | |
2199 | } | |
2200 | } | |
2201 | ||
d0313fb7 | 2202 | /* .loop [count] |
9a736b6b NC |
2203 | Count defaults to 1024. */ |
2204 | ||
39bec121 | 2205 | static void |
f1e7a2c9 NC |
2206 | tic54x_loop (count) |
2207 | int count; | |
39bec121 TW |
2208 | { |
2209 | ILLEGAL_WITHIN_STRUCT (); | |
2210 | ||
2211 | SKIP_WHITESPACE (); | |
1aea3bb8 | 2212 | if (!is_end_of_line[(int) *input_line_pointer]) |
9a736b6b | 2213 | count = get_absolute_expression (); |
39bec121 TW |
2214 | |
2215 | do_repeat (count, "LOOP", "ENDLOOP"); | |
2216 | } | |
2217 | ||
d0313fb7 | 2218 | /* Normally, endloop gets eaten by the preceding loop. */ |
9a736b6b | 2219 | |
39bec121 | 2220 | static void |
f1e7a2c9 NC |
2221 | tic54x_endloop (ignore) |
2222 | int ignore ATTRIBUTE_UNUSED; | |
39bec121 TW |
2223 | { |
2224 | as_bad (_("ENDLOOP without corresponding LOOP")); | |
2225 | ignore_rest_of_line (); | |
2226 | } | |
2227 | ||
d0313fb7 | 2228 | /* .break [condition]. */ |
9a736b6b | 2229 | |
39bec121 | 2230 | static void |
f1e7a2c9 NC |
2231 | tic54x_break (ignore) |
2232 | int ignore ATTRIBUTE_UNUSED; | |
39bec121 TW |
2233 | { |
2234 | int cond = 1; | |
2235 | ||
2236 | ILLEGAL_WITHIN_STRUCT (); | |
2237 | ||
2238 | SKIP_WHITESPACE (); | |
1aea3bb8 | 2239 | if (!is_end_of_line[(int) *input_line_pointer]) |
9a736b6b NC |
2240 | cond = get_absolute_expression (); |
2241 | ||
39bec121 | 2242 | if (cond) |
9a736b6b | 2243 | end_repeat (substitution_line ? 1 : 0); |
39bec121 TW |
2244 | } |
2245 | ||
2246 | static void | |
f1e7a2c9 NC |
2247 | set_address_mode (mode) |
2248 | int mode; | |
39bec121 TW |
2249 | { |
2250 | amode = mode; | |
2251 | if (mode == far_mode) | |
2252 | { | |
1aea3bb8 | 2253 | symbolS *symbolP = symbol_new ("__allow_far", absolute_section, |
9a736b6b | 2254 | (valueT) 1, &zero_address_frag); |
39bec121 TW |
2255 | SF_SET_LOCAL (symbolP); |
2256 | symbol_table_insert (symbolP); | |
2257 | } | |
2258 | } | |
2259 | ||
2260 | static int address_mode_needs_set = 1; | |
f1e7a2c9 | 2261 | |
39bec121 | 2262 | static void |
f1e7a2c9 NC |
2263 | tic54x_address_mode (mode) |
2264 | int mode; | |
39bec121 | 2265 | { |
1aea3bb8 | 2266 | if (assembly_begun && amode != (unsigned) mode) |
39bec121 TW |
2267 | { |
2268 | as_bad (_("Mixing of normal and extended addressing not supported")); | |
2269 | ignore_rest_of_line (); | |
2270 | return; | |
2271 | } | |
2272 | if (mode == far_mode && cpu != VNONE && cpu != V548 && cpu != V549) | |
2273 | { | |
2274 | as_bad (_("Extended addressing not supported on the specified CPU")); | |
2275 | ignore_rest_of_line (); | |
2276 | return; | |
2277 | } | |
2278 | ||
2279 | set_address_mode (mode); | |
2280 | demand_empty_rest_of_line (); | |
2281 | } | |
2282 | ||
2283 | /* .sblock "section"|section [,...,"section"|section] | |
9a736b6b NC |
2284 | Designate initialized sections for blocking. */ |
2285 | ||
39bec121 | 2286 | static void |
f1e7a2c9 NC |
2287 | tic54x_sblock (ignore) |
2288 | int ignore ATTRIBUTE_UNUSED; | |
39bec121 TW |
2289 | { |
2290 | int c = ','; | |
2291 | ||
2292 | ILLEGAL_WITHIN_STRUCT (); | |
2293 | ||
2294 | while (c == ',') | |
2295 | { | |
2296 | segT seg; | |
2297 | char *name; | |
1aea3bb8 | 2298 | |
39bec121 | 2299 | if (*input_line_pointer == '"') |
9a736b6b NC |
2300 | { |
2301 | int len; | |
f1e7a2c9 | 2302 | |
9a736b6b NC |
2303 | name = demand_copy_C_string (&len); |
2304 | } | |
39bec121 | 2305 | else |
9a736b6b NC |
2306 | { |
2307 | char *section_name = input_line_pointer; | |
f1e7a2c9 | 2308 | |
9a736b6b NC |
2309 | c = get_symbol_end (); |
2310 | name = xmalloc (strlen (section_name) + 1); | |
2311 | strcpy (name, section_name); | |
2312 | *input_line_pointer = c; | |
2313 | } | |
39bec121 TW |
2314 | |
2315 | seg = bfd_get_section_by_name (stdoutput, name); | |
2316 | if (seg == NULL) | |
9a736b6b NC |
2317 | { |
2318 | as_bad (_("Unrecognized section '%s'"), name); | |
2319 | ignore_rest_of_line (); | |
2320 | return; | |
2321 | } | |
39bec121 | 2322 | else if (!tic54x_initialized_section (seg)) |
9a736b6b NC |
2323 | { |
2324 | as_bad (_(".sblock may be used for initialized sections only")); | |
2325 | ignore_rest_of_line (); | |
2326 | return; | |
2327 | } | |
39bec121 TW |
2328 | seg->flags |= SEC_BLOCK; |
2329 | ||
2330 | c = *input_line_pointer; | |
1aea3bb8 | 2331 | if (!is_end_of_line[(int) c]) |
9a736b6b | 2332 | ++input_line_pointer; |
39bec121 TW |
2333 | } |
2334 | ||
2335 | demand_empty_rest_of_line (); | |
2336 | } | |
2337 | ||
2338 | /* symbol .set value | |
1aea3bb8 | 2339 | symbol .equ value |
39bec121 TW |
2340 | |
2341 | value must be defined externals; no forward-referencing allowed | |
d0313fb7 | 2342 | symbols assigned with .set/.equ may not be redefined. */ |
9a736b6b | 2343 | |
39bec121 | 2344 | static void |
f1e7a2c9 NC |
2345 | tic54x_set (ignore) |
2346 | int ignore ATTRIBUTE_UNUSED; | |
39bec121 TW |
2347 | { |
2348 | symbolS *symbolP; | |
2349 | char *name; | |
2350 | ||
2351 | ILLEGAL_WITHIN_STRUCT (); | |
2352 | ||
2353 | if (!line_label) | |
2354 | { | |
2355 | as_bad (_("Symbol missing for .set/.equ")); | |
2356 | ignore_rest_of_line (); | |
2357 | return; | |
2358 | } | |
2359 | name = xstrdup (S_GET_NAME (line_label)); | |
2360 | line_label = NULL; | |
2361 | if ((symbolP = symbol_find (name)) == NULL | |
2362 | && (symbolP = md_undefined_symbol (name)) == NULL) | |
2363 | { | |
2364 | symbolP = symbol_new (name, absolute_section, 0, &zero_address_frag); | |
2365 | S_SET_STORAGE_CLASS (symbolP, C_STAT); | |
2366 | } | |
2367 | free (name); | |
2368 | S_SET_DATA_TYPE (symbolP, T_INT); | |
2369 | S_SET_SEGMENT (symbolP, absolute_section); | |
2370 | symbol_table_insert (symbolP); | |
2371 | pseudo_set (symbolP); | |
2372 | demand_empty_rest_of_line (); | |
2373 | } | |
2374 | ||
2375 | /* .fclist | |
2376 | .fcnolist | |
9a736b6b NC |
2377 | List false conditional blocks. */ |
2378 | ||
39bec121 | 2379 | static void |
f1e7a2c9 NC |
2380 | tic54x_fclist (show) |
2381 | int show; | |
39bec121 TW |
2382 | { |
2383 | if (show) | |
2384 | listing &= ~LISTING_NOCOND; | |
2385 | else | |
2386 | listing |= LISTING_NOCOND; | |
2387 | demand_empty_rest_of_line (); | |
2388 | } | |
2389 | ||
2390 | static void | |
f1e7a2c9 NC |
2391 | tic54x_sslist (show) |
2392 | int show; | |
39bec121 TW |
2393 | { |
2394 | ILLEGAL_WITHIN_STRUCT (); | |
2395 | ||
2396 | listing_sslist = show; | |
2397 | } | |
2398 | ||
1aea3bb8 | 2399 | /* .var SYM[,...,SYMN] |
9a736b6b NC |
2400 | Define a substitution string to be local to a macro. */ |
2401 | ||
39bec121 | 2402 | static void |
f1e7a2c9 NC |
2403 | tic54x_var (ignore) |
2404 | int ignore ATTRIBUTE_UNUSED; | |
39bec121 TW |
2405 | { |
2406 | static char empty[] = ""; | |
2407 | char *name; | |
2408 | int c; | |
2409 | ||
2410 | ILLEGAL_WITHIN_STRUCT (); | |
2411 | ||
2412 | if (macro_level == 0) | |
2413 | { | |
2414 | as_bad (_(".var may only be used within a macro definition")); | |
2415 | ignore_rest_of_line (); | |
2416 | return; | |
2417 | } | |
1aea3bb8 | 2418 | do |
39bec121 | 2419 | { |
3882b010 | 2420 | if (!ISALPHA (*input_line_pointer)) |
9a736b6b NC |
2421 | { |
2422 | as_bad (_("Substitution symbols must begin with a letter")); | |
2423 | ignore_rest_of_line (); | |
2424 | return; | |
2425 | } | |
39bec121 TW |
2426 | name = input_line_pointer; |
2427 | c = get_symbol_end (); | |
9a736b6b | 2428 | /* .var symbols start out with a null string. */ |
1aea3bb8 | 2429 | name = strcpy (xmalloc (strlen (name) + 1), name); |
39bec121 TW |
2430 | hash_insert (subsym_hash[macro_level], name, empty); |
2431 | *input_line_pointer = c; | |
2432 | if (c == ',') | |
9a736b6b NC |
2433 | { |
2434 | ++input_line_pointer; | |
2435 | if (is_end_of_line[(int) *input_line_pointer]) | |
2436 | c = *input_line_pointer; | |
2437 | } | |
39bec121 TW |
2438 | } |
2439 | while (c == ','); | |
2440 | ||
2441 | demand_empty_rest_of_line (); | |
2442 | } | |
2443 | ||
1aea3bb8 | 2444 | /* .mlib <macro library filename> |
39bec121 TW |
2445 | |
2446 | Macro libraries are archived (standard AR-format) text macro definitions | |
2447 | Expand the file and include it. | |
2448 | ||
d0313fb7 | 2449 | FIXME need to try the source file directory as well. */ |
9a736b6b | 2450 | |
39bec121 | 2451 | static void |
f1e7a2c9 NC |
2452 | tic54x_mlib (ignore) |
2453 | int ignore ATTRIBUTE_UNUSED; | |
39bec121 TW |
2454 | { |
2455 | char *filename; | |
2456 | char *path; | |
2457 | int len, i; | |
2458 | bfd *abfd, *mbfd; | |
2459 | ||
2460 | ILLEGAL_WITHIN_STRUCT (); | |
2461 | ||
9a736b6b | 2462 | /* Parse the filename. */ |
39bec121 TW |
2463 | if (*input_line_pointer == '"') |
2464 | { | |
2465 | if ((filename = demand_copy_C_string (&len)) == NULL) | |
9a736b6b | 2466 | return; |
39bec121 TW |
2467 | } |
2468 | else | |
2469 | { | |
2470 | SKIP_WHITESPACE (); | |
2471 | len = 0; | |
1aea3bb8 | 2472 | while (!is_end_of_line[(int) *input_line_pointer] |
3882b010 | 2473 | && !ISSPACE (*input_line_pointer)) |
9a736b6b NC |
2474 | { |
2475 | obstack_1grow (¬es, *input_line_pointer); | |
2476 | ++input_line_pointer; | |
2477 | ++len; | |
2478 | } | |
39bec121 TW |
2479 | obstack_1grow (¬es, '\0'); |
2480 | filename = obstack_finish (¬es); | |
2481 | } | |
2482 | demand_empty_rest_of_line (); | |
2483 | ||
2484 | tic54x_set_default_include (0); | |
2485 | path = xmalloc ((unsigned long) len + include_dir_maxlen + 5); | |
f1e7a2c9 | 2486 | |
1aea3bb8 | 2487 | for (i = 0; i < include_dir_count; i++) |
39bec121 TW |
2488 | { |
2489 | FILE *try; | |
f1e7a2c9 | 2490 | |
39bec121 TW |
2491 | strcpy (path, include_dirs[i]); |
2492 | strcat (path, "/"); | |
2493 | strcat (path, filename); | |
2494 | if ((try = fopen (path, "r")) != NULL) | |
9a736b6b NC |
2495 | { |
2496 | fclose (try); | |
2497 | break; | |
2498 | } | |
1aea3bb8 | 2499 | } |
f1e7a2c9 | 2500 | |
39bec121 TW |
2501 | if (i >= include_dir_count) |
2502 | { | |
2503 | free (path); | |
2504 | path = filename; | |
2505 | } | |
2506 | ||
2507 | /* FIXME: if path is found, malloc'd storage is not freed. Of course, this | |
2508 | happens all over the place, and since the assembler doesn't usually keep | |
9a736b6b | 2509 | running for a very long time, it really doesn't matter. */ |
39bec121 TW |
2510 | register_dependency (path); |
2511 | ||
d0313fb7 | 2512 | /* Expand all archive entries to temporary files and include them. */ |
39bec121 TW |
2513 | abfd = bfd_openr (path, NULL); |
2514 | if (!abfd) | |
2515 | { | |
2516 | as_bad (_("Can't open macro library file '%s' for reading."), path); | |
2517 | as_perror ("%s", path); | |
2518 | ignore_rest_of_line (); | |
2519 | return; | |
2520 | } | |
2521 | if (!bfd_check_format (abfd, bfd_archive)) | |
2522 | { | |
2523 | as_bad (_("File '%s' not in macro archive format"), path); | |
2524 | ignore_rest_of_line (); | |
2525 | return; | |
2526 | } | |
2527 | ||
d0313fb7 | 2528 | /* Open each BFD as binary (it should be straight ASCII text). */ |
39bec121 TW |
2529 | for (mbfd = bfd_openr_next_archived_file (abfd, NULL); |
2530 | mbfd != NULL; mbfd = bfd_openr_next_archived_file (abfd, mbfd)) | |
2531 | { | |
d0313fb7 | 2532 | /* Get a size at least as big as the archive member. */ |
39bec121 TW |
2533 | bfd_size_type size = bfd_get_size (mbfd); |
2534 | char *buf = xmalloc (size); | |
2535 | char *fname = tmpnam (NULL); | |
2536 | FILE *ftmp; | |
2537 | ||
d0313fb7 | 2538 | /* We're not sure how big it is, but it will be smaller than "size". */ |
0e1a166b | 2539 | bfd_bread (buf, size, mbfd); |
39bec121 | 2540 | |
1aea3bb8 | 2541 | /* Write to a temporary file, then use s_include to include it |
9a736b6b | 2542 | a bit of a hack. */ |
39bec121 | 2543 | ftmp = fopen (fname, "w+b"); |
1aea3bb8 NC |
2544 | fwrite ((void *) buf, size, 1, ftmp); |
2545 | if (buf[size - 1] != '\n') | |
9a736b6b | 2546 | fwrite ("\n", 1, 1, ftmp); |
39bec121 TW |
2547 | fclose (ftmp); |
2548 | free (buf); | |
2549 | input_scrub_insert_file (fname); | |
2550 | unlink (fname); | |
2551 | } | |
2552 | } | |
2553 | ||
1aea3bb8 | 2554 | const pseudo_typeS md_pseudo_table[] = |
39bec121 | 2555 | { |
9a736b6b NC |
2556 | { "algebraic", s_ignore , 0 }, |
2557 | { "align" , tic54x_align_words , 128 }, | |
6e917903 TW |
2558 | { "ascii" , tic54x_stringer , 'p' }, |
2559 | { "asciz" , tic54x_stringer , 'P' }, | |
9a736b6b NC |
2560 | { "even" , tic54x_align_words , 2 }, |
2561 | { "asg" , tic54x_asg , 0 }, | |
2562 | { "eval" , tic54x_eval , 0 }, | |
2563 | { "bss" , tic54x_bss , 0 }, | |
2564 | { "byte" , tic54x_cons , 'b' }, | |
2565 | { "ubyte" , tic54x_cons , 'B' }, | |
2566 | { "char" , tic54x_cons , 'c' }, | |
2567 | { "uchar" , tic54x_cons , 'C' }, | |
2568 | { "clink" , tic54x_clink , 0 }, | |
2569 | { "c_mode" , tic54x_address_mode , c_mode }, | |
2570 | { "copy" , tic54x_include , 'c' }, | |
2571 | { "include" , tic54x_include , 'i' }, | |
2572 | { "data" , tic54x_sect , 'd' }, | |
2573 | { "double" , tic54x_float_cons , 'd' }, | |
2574 | { "ldouble" , tic54x_float_cons , 'l' }, | |
2575 | { "drlist" , s_ignore , 0 }, | |
2576 | { "drnolist" , s_ignore , 0 }, | |
2577 | { "emsg" , tic54x_message , 'e' }, | |
2578 | { "mmsg" , tic54x_message , 'm' }, | |
2579 | { "wmsg" , tic54x_message , 'w' }, | |
9a736b6b NC |
2580 | { "far_mode" , tic54x_address_mode , far_mode }, |
2581 | { "fclist" , tic54x_fclist , 1 }, | |
2582 | { "fcnolist" , tic54x_fclist , 0 }, | |
2583 | { "field" , tic54x_field , -1 }, | |
2584 | { "float" , tic54x_float_cons , 'f' }, | |
2585 | { "xfloat" , tic54x_float_cons , 'x' }, | |
2586 | { "global" , tic54x_global , 'g' }, | |
2587 | { "def" , tic54x_global , 'd' }, | |
2588 | { "ref" , tic54x_global , 'r' }, | |
2589 | { "half" , tic54x_cons , 'h' }, | |
2590 | { "uhalf" , tic54x_cons , 'H' }, | |
2591 | { "short" , tic54x_cons , 's' }, | |
2592 | { "ushort" , tic54x_cons , 'S' }, | |
2593 | { "if" , s_if , (int) O_ne }, | |
2594 | { "elseif" , s_elseif , (int) O_ne }, | |
2595 | { "else" , s_else , 0 }, | |
2596 | { "endif" , s_endif , 0 }, | |
2597 | { "int" , tic54x_cons , 'i' }, | |
2598 | { "uint" , tic54x_cons , 'I' }, | |
2599 | { "word" , tic54x_cons , 'w' }, | |
2600 | { "uword" , tic54x_cons , 'W' }, | |
2601 | { "label" , tic54x_label , 0 }, /* Loadtime | |
2602 | address. */ | |
2603 | { "length" , s_ignore , 0 }, | |
2604 | { "width" , s_ignore , 0 }, | |
9a736b6b NC |
2605 | { "long" , tic54x_cons , 'l' }, |
2606 | { "ulong" , tic54x_cons , 'L' }, | |
2607 | { "xlong" , tic54x_cons , 'x' }, | |
2608 | { "loop" , tic54x_loop , 1024 }, | |
2609 | { "break" , tic54x_break , 0 }, | |
2610 | { "endloop" , tic54x_endloop , 0 }, | |
2611 | { "mlib" , tic54x_mlib , 0 }, | |
2612 | { "mlist" , s_ignore , 0 }, | |
2613 | { "mnolist" , s_ignore , 0 }, | |
2614 | { "mmregs" , tic54x_mmregs , 0 }, | |
2615 | { "newblock" , tic54x_clear_local_labels, 0 }, | |
2616 | { "option" , s_ignore , 0 }, | |
2617 | { "p2align" , tic54x_p2align , 0 }, | |
9a736b6b NC |
2618 | { "sblock" , tic54x_sblock , 0 }, |
2619 | { "sect" , tic54x_sect , '*' }, | |
2620 | { "set" , tic54x_set , 0 }, | |
2621 | { "equ" , tic54x_set , 0 }, | |
2622 | { "space" , tic54x_space , 0 }, | |
2623 | { "bes" , tic54x_space , 1 }, | |
2624 | { "sslist" , tic54x_sslist , 1 }, | |
2625 | { "ssnolist" , tic54x_sslist , 0 }, | |
2626 | { "string" , tic54x_stringer , 's' }, | |
2627 | { "pstring" , tic54x_stringer , 'p' }, | |
2628 | { "struct" , tic54x_struct , 0 }, | |
2629 | { "tag" , tic54x_tag , 0 }, | |
2630 | { "endstruct", tic54x_endstruct , 0 }, | |
2631 | { "tab" , s_ignore , 0 }, | |
2632 | { "text" , tic54x_sect , 't' }, | |
9a736b6b NC |
2633 | { "union" , tic54x_struct , 1 }, |
2634 | { "endunion" , tic54x_endstruct , 1 }, | |
2635 | { "usect" , tic54x_usect , 0 }, | |
2636 | { "var" , tic54x_var , 0 }, | |
2637 | { "version" , tic54x_version , 0 }, | |
2638 | {0 , 0 , 0 } | |
39bec121 TW |
2639 | }; |
2640 | ||
39bec121 TW |
2641 | int |
2642 | md_parse_option (c, arg) | |
1aea3bb8 NC |
2643 | int c; |
2644 | char *arg; | |
39bec121 TW |
2645 | { |
2646 | switch (c) | |
2647 | { | |
2648 | default: | |
2649 | return 0; | |
2650 | case OPTION_COFF_VERSION: | |
2651 | { | |
9a736b6b | 2652 | int version = atoi (arg); |
f1e7a2c9 | 2653 | |
9a736b6b NC |
2654 | if (version != 0 && version != 1 && version != 2) |
2655 | as_fatal (_("Bad COFF version '%s'"), arg); | |
2656 | /* FIXME -- not yet implemented. */ | |
2657 | break; | |
39bec121 TW |
2658 | } |
2659 | case OPTION_CPU_VERSION: | |
2660 | { | |
9a736b6b NC |
2661 | cpu = lookup_version (arg); |
2662 | cpu_needs_set = 1; | |
2663 | if (cpu == VNONE) | |
2664 | as_fatal (_("Bad CPU version '%s'"), arg); | |
2665 | break; | |
39bec121 TW |
2666 | } |
2667 | case OPTION_ADDRESS_MODE: | |
2668 | amode = far_mode; | |
2669 | address_mode_needs_set = 1; | |
2670 | break; | |
2671 | case OPTION_STDERR_TO_FILE: | |
2672 | { | |
9a736b6b NC |
2673 | char *filename = arg; |
2674 | FILE *fp = fopen (filename, "w+"); | |
f1e7a2c9 | 2675 | |
9a736b6b NC |
2676 | if (fp == NULL) |
2677 | as_fatal (_("Can't redirect stderr to the file '%s'"), filename); | |
2678 | fclose (fp); | |
2679 | if ((fp = freopen (filename, "w+", stderr)) == NULL) | |
2680 | as_fatal (_("Can't redirect stderr to the file '%s'"), filename); | |
2681 | break; | |
39bec121 TW |
2682 | } |
2683 | } | |
2684 | ||
2685 | return 1; | |
2686 | } | |
2687 | ||
1aea3bb8 | 2688 | /* Create a "local" substitution string hash table for a new macro level |
39bec121 TW |
2689 | Some docs imply that macros have to use .newblock in order to be able |
2690 | to re-use a local label. We effectively do an automatic .newblock by | |
d0313fb7 | 2691 | deleting the local label hash between macro invocations. */ |
9a736b6b | 2692 | |
1aea3bb8 | 2693 | void |
39bec121 TW |
2694 | tic54x_macro_start () |
2695 | { | |
2696 | ++macro_level; | |
2697 | subsym_hash[macro_level] = hash_new (); | |
2698 | local_label_hash[macro_level] = hash_new (); | |
2699 | } | |
2700 | ||
2701 | void | |
d0313fb7 NC |
2702 | tic54x_macro_info (info) |
2703 | void *info; | |
39bec121 TW |
2704 | { |
2705 | struct formal_struct | |
2706 | { | |
9a736b6b NC |
2707 | struct formal_struct *next; /* Next formal in list */ |
2708 | sb name; /* Name of the formal */ | |
2709 | sb def; /* The default value */ | |
2710 | sb actual; /* The actual argument (changed on | |
2711 | each expansion) */ | |
2712 | int index; /* The index of the formal | |
2713 | 0 .. formal_count - 1 */ | |
39bec121 TW |
2714 | } *entry; |
2715 | struct macro_struct | |
2716 | { | |
9a736b6b NC |
2717 | sb sub; /* Substitution text. */ |
2718 | int formal_count; /* Number of formal args. */ | |
2719 | struct formal_struct *formals; /* Pointer to list of | |
2720 | formal_structs. */ | |
2721 | struct hash_control *formal_hash; /* Hash table of formals. */ | |
39bec121 TW |
2722 | } *macro; |
2723 | ||
1aea3bb8 | 2724 | macro = (struct macro_struct *) info; |
39bec121 | 2725 | |
d0313fb7 | 2726 | /* Put the formal args into the substitution symbol table. */ |
39bec121 TW |
2727 | for (entry = macro->formals; entry; entry = entry->next) |
2728 | { | |
2729 | char *name = strncpy (xmalloc (entry->name.len + 1), | |
9a736b6b | 2730 | entry->name.ptr, entry->name.len); |
39bec121 | 2731 | char *value = strncpy (xmalloc (entry->actual.len + 1), |
9a736b6b | 2732 | entry->actual.ptr, entry->actual.len); |
f1e7a2c9 | 2733 | |
39bec121 TW |
2734 | name[entry->name.len] = '\0'; |
2735 | value[entry->actual.len] = '\0'; | |
2736 | hash_insert (subsym_hash[macro_level], name, value); | |
2737 | } | |
2738 | } | |
2739 | ||
d0313fb7 | 2740 | /* Get rid of this macro's .var's, arguments, and local labels. */ |
9a736b6b | 2741 | |
39bec121 TW |
2742 | void |
2743 | tic54x_macro_end () | |
2744 | { | |
2745 | hash_die (subsym_hash[macro_level]); | |
2746 | subsym_hash[macro_level] = NULL; | |
2747 | hash_die (local_label_hash[macro_level]); | |
2748 | local_label_hash[macro_level] = NULL; | |
2749 | --macro_level; | |
2750 | } | |
2751 | ||
2752 | static int | |
f1e7a2c9 NC |
2753 | subsym_symlen (a, ignore) |
2754 | char *a; | |
2755 | char *ignore ATTRIBUTE_UNUSED; | |
39bec121 TW |
2756 | { |
2757 | return strlen (a); | |
2758 | } | |
2759 | ||
d0313fb7 | 2760 | /* Compare symbol A to string B. */ |
9a736b6b | 2761 | |
39bec121 | 2762 | static int |
f1e7a2c9 NC |
2763 | subsym_symcmp (a, b) |
2764 | char *a; | |
2765 | char *b; | |
39bec121 TW |
2766 | { |
2767 | return strcmp (a, b); | |
2768 | } | |
2769 | ||
33b7f697 | 2770 | /* Return the index of the first occurrence of B in A, or zero if none |
d0313fb7 | 2771 | assumes b is an integer char value as a string. Index is one-based. */ |
9a736b6b | 2772 | |
39bec121 | 2773 | static int |
f1e7a2c9 NC |
2774 | subsym_firstch (a, b) |
2775 | char *a; | |
2776 | char *b; | |
39bec121 TW |
2777 | { |
2778 | int val = atoi (b); | |
2779 | char *tmp = strchr (a, val); | |
1aea3bb8 | 2780 | |
39bec121 TW |
2781 | return tmp ? tmp - a + 1 : 0; |
2782 | } | |
2783 | ||
d0313fb7 | 2784 | /* Similar to firstch, but returns index of last occurrence of B in A. */ |
9a736b6b | 2785 | |
39bec121 | 2786 | static int |
f1e7a2c9 NC |
2787 | subsym_lastch (a, b) |
2788 | char *a; | |
2789 | char *b; | |
39bec121 TW |
2790 | { |
2791 | int val = atoi (b); | |
2792 | char *tmp = strrchr (a, val); | |
2793 | ||
2794 | return tmp ? tmp - a + 1 : 0; | |
2795 | } | |
2796 | ||
d0313fb7 | 2797 | /* Returns 1 if string A is defined in the symbol table (NOT the substitution |
9a736b6b NC |
2798 | symbol table). */ |
2799 | ||
39bec121 | 2800 | static int |
f1e7a2c9 NC |
2801 | subsym_isdefed (a, ignore) |
2802 | char *a; | |
2803 | char *ignore ATTRIBUTE_UNUSED; | |
39bec121 TW |
2804 | { |
2805 | symbolS *symbolP = symbol_find (a); | |
2806 | ||
2807 | return symbolP != NULL; | |
2808 | } | |
2809 | ||
d0313fb7 | 2810 | /* Assign first member of comma-separated list B (e.g. "1,2,3") to the symbol |
39bec121 | 2811 | A, or zero if B is a null string. Both arguments *must* be substitution |
d0313fb7 | 2812 | symbols, unsubstituted. */ |
9a736b6b | 2813 | |
39bec121 | 2814 | static int |
f1e7a2c9 NC |
2815 | subsym_ismember (sym, list) |
2816 | char *sym; | |
2817 | char *list; | |
39bec121 TW |
2818 | { |
2819 | char *elem, *ptr, *listv; | |
2820 | ||
2821 | if (!list) | |
2822 | return 0; | |
2823 | ||
2824 | listv = subsym_lookup (list, macro_level); | |
2825 | if (!listv) | |
2826 | { | |
2827 | as_bad (_("Undefined substitution symbol '%s'"), list); | |
2828 | ignore_rest_of_line (); | |
2829 | return 0; | |
2830 | } | |
2831 | ||
1aea3bb8 | 2832 | ptr = elem = xmalloc (strlen (listv) + 1); |
39bec121 TW |
2833 | strcpy (elem, listv); |
2834 | while (*ptr && *ptr != ',') | |
2835 | ++ptr; | |
2836 | *ptr++ = 0; | |
2837 | ||
d0313fb7 | 2838 | subsym_create_or_replace (sym, elem); |
39bec121 | 2839 | |
d0313fb7 | 2840 | /* Reassign the list. */ |
39bec121 | 2841 | subsym_create_or_replace (list, ptr); |
1aea3bb8 | 2842 | |
d0313fb7 | 2843 | /* Assume this value, docs aren't clear. */ |
39bec121 TW |
2844 | return *list != 0; |
2845 | } | |
2846 | ||
d0313fb7 | 2847 | /* Return zero if not a constant; otherwise: |
39bec121 TW |
2848 | 1 if binary |
2849 | 2 if octal | |
2850 | 3 if hexadecimal | |
2851 | 4 if character | |
d0313fb7 | 2852 | 5 if decimal. */ |
9a736b6b | 2853 | |
39bec121 | 2854 | static int |
f1e7a2c9 NC |
2855 | subsym_iscons (a, ignore) |
2856 | char *a; | |
2857 | char *ignore ATTRIBUTE_UNUSED; | |
39bec121 TW |
2858 | { |
2859 | expressionS exp; | |
2860 | ||
2861 | parse_expression (a, &exp); | |
2862 | ||
2863 | if (exp.X_op == O_constant) | |
2864 | { | |
2865 | int len = strlen (a); | |
2866 | ||
3882b010 | 2867 | switch (TOUPPER (a[len - 1])) |
9a736b6b NC |
2868 | { |
2869 | case 'B': | |
2870 | return 1; | |
2871 | case 'Q': | |
2872 | return 2; | |
2873 | case 'H': | |
2874 | return 3; | |
2875 | case '\'': | |
2876 | return 4; | |
2877 | default: | |
2878 | break; | |
2879 | } | |
d0313fb7 | 2880 | /* No suffix; either octal, hex, or decimal. */ |
39bec121 | 2881 | if (*a == '0' && len > 1) |
9a736b6b | 2882 | { |
3882b010 | 2883 | if (TOUPPER (a[1]) == 'X') |
9a736b6b NC |
2884 | return 3; |
2885 | return 2; | |
2886 | } | |
39bec121 TW |
2887 | return 5; |
2888 | } | |
2889 | ||
2890 | return 0; | |
2891 | } | |
2892 | ||
d0313fb7 | 2893 | /* Return 1 if A is a valid symbol name. Expects string input. */ |
9a736b6b | 2894 | |
39bec121 | 2895 | static int |
f1e7a2c9 NC |
2896 | subsym_isname (a, ignore) |
2897 | char *a; | |
2898 | char *ignore ATTRIBUTE_UNUSED; | |
39bec121 TW |
2899 | { |
2900 | if (!is_name_beginner (*a)) | |
2901 | return 0; | |
2902 | while (*a) | |
2903 | { | |
2904 | if (!is_part_of_name (*a)) | |
9a736b6b | 2905 | return 0; |
39bec121 TW |
2906 | ++a; |
2907 | } | |
2908 | return 1; | |
2909 | } | |
2910 | ||
d0313fb7 | 2911 | /* Return whether the string is a register; accepts ar0-7, unless .mmregs has |
39bec121 | 2912 | been seen; if so, recognize any memory-mapped register. |
d0313fb7 | 2913 | Note this does not recognize "A" or "B" accumulators. */ |
9a736b6b | 2914 | |
39bec121 | 2915 | static int |
f1e7a2c9 NC |
2916 | subsym_isreg (a, ignore) |
2917 | char *a; | |
2918 | char *ignore ATTRIBUTE_UNUSED; | |
39bec121 TW |
2919 | { |
2920 | if (hash_find (reg_hash, a)) | |
2921 | return 1; | |
2922 | if (hash_find (mmreg_hash, a)) | |
2923 | return 1; | |
2924 | return 0; | |
2925 | } | |
2926 | ||
33b7f697 | 2927 | /* Return the structure size, given the stag. */ |
9a736b6b | 2928 | |
39bec121 | 2929 | static int |
f1e7a2c9 NC |
2930 | subsym_structsz (name, ignore) |
2931 | char *name; | |
2932 | char *ignore ATTRIBUTE_UNUSED; | |
39bec121 | 2933 | { |
1aea3bb8 | 2934 | struct stag *stag = (struct stag *) hash_find (stag_hash, name); |
f1e7a2c9 | 2935 | |
39bec121 TW |
2936 | if (stag) |
2937 | return stag->size; | |
2938 | ||
2939 | return 0; | |
2940 | } | |
2941 | ||
2942 | /* If anybody actually uses this, they can fix it :) | |
2943 | FIXME I'm not sure what the "reference point" of a structure is. It might | |
2944 | be either the initial offset given .struct, or it may be the offset of the | |
2945 | structure within another structure, or it might be something else | |
2946 | altogether. since the TI assembler doesn't seem to ever do anything but | |
d0313fb7 | 2947 | return zero, we punt and return zero. */ |
9a736b6b | 2948 | |
39bec121 | 2949 | static int |
f1e7a2c9 NC |
2950 | subsym_structacc (stag_name, ignore) |
2951 | char *stag_name ATTRIBUTE_UNUSED; | |
2952 | char *ignore ATTRIBUTE_UNUSED; | |
39bec121 TW |
2953 | { |
2954 | return 0; | |
2955 | } | |
2956 | ||
2957 | static float | |
2958 | math_ceil (arg1, ignore) | |
1aea3bb8 NC |
2959 | float arg1; |
2960 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 2961 | { |
1aea3bb8 | 2962 | return (float) ceil (arg1); |
39bec121 | 2963 | } |
d0313fb7 | 2964 | |
39bec121 TW |
2965 | static float |
2966 | math_cvi (arg1, ignore) | |
1aea3bb8 NC |
2967 | float arg1; |
2968 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 2969 | { |
1aea3bb8 | 2970 | return (int) arg1; |
39bec121 | 2971 | } |
d0313fb7 | 2972 | |
39bec121 TW |
2973 | static float |
2974 | math_floor (arg1, ignore) | |
1aea3bb8 NC |
2975 | float arg1; |
2976 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 2977 | { |
1aea3bb8 | 2978 | return (float) floor (arg1); |
39bec121 | 2979 | } |
d0313fb7 | 2980 | |
39bec121 | 2981 | static float |
f1e7a2c9 NC |
2982 | math_fmod (arg1, arg2) |
2983 | float arg1; | |
2984 | float arg2; | |
39bec121 | 2985 | { |
1aea3bb8 | 2986 | return (int) arg1 % (int) arg2; |
39bec121 | 2987 | } |
d0313fb7 | 2988 | |
39bec121 TW |
2989 | static float |
2990 | math_int (arg1, ignore) | |
1aea3bb8 NC |
2991 | float arg1; |
2992 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 2993 | { |
1aea3bb8 | 2994 | return ((float) ((int) arg1)) == arg1; |
39bec121 | 2995 | } |
d0313fb7 | 2996 | |
39bec121 TW |
2997 | static float |
2998 | math_round (arg1, ignore) | |
1aea3bb8 NC |
2999 | float arg1; |
3000 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 3001 | { |
1aea3bb8 | 3002 | return arg1 > 0 ? (int) (arg1 + 0.5) : (int) (arg1 - 0.5); |
39bec121 | 3003 | } |
d0313fb7 | 3004 | |
39bec121 TW |
3005 | static float |
3006 | math_sgn (arg1, ignore) | |
1aea3bb8 NC |
3007 | float arg1; |
3008 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 TW |
3009 | { |
3010 | return (arg1 < 0) ? -1 : (arg1 ? 1 : 0); | |
3011 | } | |
d0313fb7 | 3012 | |
39bec121 TW |
3013 | static float |
3014 | math_trunc (arg1, ignore) | |
1aea3bb8 NC |
3015 | float arg1; |
3016 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 3017 | { |
1aea3bb8 | 3018 | return (int) arg1; |
39bec121 TW |
3019 | } |
3020 | ||
3021 | static float | |
3022 | math_acos (arg1, ignore) | |
1aea3bb8 NC |
3023 | float arg1; |
3024 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 3025 | { |
1aea3bb8 | 3026 | return (float) acos (arg1); |
39bec121 | 3027 | } |
d0313fb7 | 3028 | |
39bec121 TW |
3029 | static float |
3030 | math_asin (arg1, ignore) | |
1aea3bb8 NC |
3031 | float arg1; |
3032 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 3033 | { |
1aea3bb8 | 3034 | return (float) asin (arg1); |
39bec121 | 3035 | } |
d0313fb7 | 3036 | |
39bec121 TW |
3037 | static float |
3038 | math_atan (arg1, ignore) | |
1aea3bb8 NC |
3039 | float arg1; |
3040 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 3041 | { |
1aea3bb8 | 3042 | return (float) atan (arg1); |
39bec121 | 3043 | } |
d0313fb7 | 3044 | |
39bec121 | 3045 | static float |
f1e7a2c9 NC |
3046 | math_atan2 (arg1, arg2) |
3047 | float arg1; | |
3048 | float arg2; | |
39bec121 | 3049 | { |
1aea3bb8 | 3050 | return (float) atan2 (arg1, arg2); |
39bec121 | 3051 | } |
d0313fb7 | 3052 | |
39bec121 TW |
3053 | static float |
3054 | math_cosh (arg1, ignore) | |
1aea3bb8 NC |
3055 | float arg1; |
3056 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 3057 | { |
1aea3bb8 | 3058 | return (float) cosh (arg1); |
39bec121 | 3059 | } |
d0313fb7 | 3060 | |
39bec121 TW |
3061 | static float |
3062 | math_cos (arg1, ignore) | |
1aea3bb8 NC |
3063 | float arg1; |
3064 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 3065 | { |
1aea3bb8 | 3066 | return (float) cos (arg1); |
39bec121 | 3067 | } |
d0313fb7 | 3068 | |
39bec121 TW |
3069 | static float |
3070 | math_cvf (arg1, ignore) | |
1aea3bb8 NC |
3071 | float arg1; |
3072 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 3073 | { |
1aea3bb8 | 3074 | return (float) arg1; |
39bec121 | 3075 | } |
d0313fb7 | 3076 | |
39bec121 TW |
3077 | static float |
3078 | math_exp (arg1, ignore) | |
1aea3bb8 NC |
3079 | float arg1; |
3080 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 3081 | { |
1aea3bb8 | 3082 | return (float) exp (arg1); |
39bec121 | 3083 | } |
d0313fb7 | 3084 | |
39bec121 TW |
3085 | static float |
3086 | math_fabs (arg1, ignore) | |
1aea3bb8 NC |
3087 | float arg1; |
3088 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 3089 | { |
1aea3bb8 | 3090 | return (float) fabs (arg1); |
39bec121 | 3091 | } |
d0313fb7 NC |
3092 | |
3093 | /* expr1 * 2^expr2. */ | |
9a736b6b | 3094 | |
39bec121 | 3095 | static float |
f1e7a2c9 NC |
3096 | math_ldexp (arg1, arg2) |
3097 | float arg1; | |
3098 | float arg2; | |
39bec121 | 3099 | { |
1aea3bb8 | 3100 | return arg1 * (float) pow (2.0, arg2); |
39bec121 | 3101 | } |
d0313fb7 | 3102 | |
39bec121 TW |
3103 | static float |
3104 | math_log10 (arg1, ignore) | |
1aea3bb8 NC |
3105 | float arg1; |
3106 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 3107 | { |
1aea3bb8 | 3108 | return (float) log10 (arg1); |
39bec121 | 3109 | } |
d0313fb7 | 3110 | |
39bec121 TW |
3111 | static float |
3112 | math_log (arg1, ignore) | |
1aea3bb8 NC |
3113 | float arg1; |
3114 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 3115 | { |
1aea3bb8 | 3116 | return (float) log (arg1); |
39bec121 | 3117 | } |
d0313fb7 | 3118 | |
39bec121 | 3119 | static float |
f1e7a2c9 NC |
3120 | math_max (arg1, arg2) |
3121 | float arg1; | |
3122 | float arg2; | |
39bec121 TW |
3123 | { |
3124 | return (arg1 > arg2) ? arg1 : arg2; | |
3125 | } | |
d0313fb7 | 3126 | |
39bec121 | 3127 | static float |
f1e7a2c9 NC |
3128 | math_min (arg1, arg2) |
3129 | float arg1; | |
3130 | float arg2; | |
39bec121 TW |
3131 | { |
3132 | return (arg1 < arg2) ? arg1 : arg2; | |
3133 | } | |
d0313fb7 | 3134 | |
39bec121 | 3135 | static float |
f1e7a2c9 NC |
3136 | math_pow (arg1, arg2) |
3137 | float arg1; | |
3138 | float arg2; | |
39bec121 | 3139 | { |
1aea3bb8 | 3140 | return (float) pow (arg1, arg2); |
39bec121 | 3141 | } |
d0313fb7 | 3142 | |
39bec121 TW |
3143 | static float |
3144 | math_sin (arg1, ignore) | |
1aea3bb8 NC |
3145 | float arg1; |
3146 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 3147 | { |
1aea3bb8 | 3148 | return (float) sin (arg1); |
39bec121 | 3149 | } |
d0313fb7 | 3150 | |
39bec121 TW |
3151 | static float |
3152 | math_sinh (arg1, ignore) | |
1aea3bb8 NC |
3153 | float arg1; |
3154 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 3155 | { |
1aea3bb8 | 3156 | return (float) sinh (arg1); |
39bec121 | 3157 | } |
d0313fb7 | 3158 | |
39bec121 TW |
3159 | static float |
3160 | math_sqrt (arg1, ignore) | |
1aea3bb8 NC |
3161 | float arg1; |
3162 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 3163 | { |
1aea3bb8 | 3164 | return (float) sqrt (arg1); |
39bec121 | 3165 | } |
d0313fb7 | 3166 | |
39bec121 TW |
3167 | static float |
3168 | math_tan (arg1, ignore) | |
1aea3bb8 NC |
3169 | float arg1; |
3170 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 3171 | { |
1aea3bb8 | 3172 | return (float) tan (arg1); |
39bec121 | 3173 | } |
d0313fb7 | 3174 | |
39bec121 TW |
3175 | static float |
3176 | math_tanh (arg1, ignore) | |
1aea3bb8 NC |
3177 | float arg1; |
3178 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 3179 | { |
1aea3bb8 | 3180 | return (float) tanh (arg1); |
39bec121 TW |
3181 | } |
3182 | ||
d0313fb7 | 3183 | /* Built-in substitution symbol functions and math functions. */ |
1aea3bb8 | 3184 | typedef struct |
39bec121 TW |
3185 | { |
3186 | char *name; | |
f1e7a2c9 | 3187 | int (*proc) PARAMS ((char *, char *)); |
39bec121 TW |
3188 | int nargs; |
3189 | } subsym_proc_entry; | |
3190 | ||
d0313fb7 NC |
3191 | static const subsym_proc_entry subsym_procs[] = |
3192 | { | |
3193 | /* Assembler built-in string substitution functions. */ | |
39bec121 TW |
3194 | { "$symlen", subsym_symlen, 1, }, |
3195 | { "$symcmp", subsym_symcmp, 2, }, | |
3196 | { "$firstch", subsym_firstch, 2, }, | |
3197 | { "$lastch", subsym_lastch, 2, }, | |
3198 | { "$isdefed", subsym_isdefed, 1, }, | |
3199 | { "$ismember", subsym_ismember, 2, }, | |
3200 | { "$iscons", subsym_iscons, 1, }, | |
3201 | { "$isname", subsym_isname, 1, }, | |
3202 | { "$isreg", subsym_isreg, 1, }, | |
3203 | { "$structsz", subsym_structsz, 1, }, | |
3204 | { "$structacc", subsym_structacc, 1, }, | |
3205 | { NULL, NULL, 0 }, | |
3206 | }; | |
3207 | ||
3208 | typedef struct | |
3209 | { | |
3210 | char *name; | |
f1e7a2c9 | 3211 | float (*proc) PARAMS ((float, float)); |
39bec121 TW |
3212 | int nargs; |
3213 | int int_return; | |
3214 | } math_proc_entry; | |
3215 | ||
d0313fb7 NC |
3216 | static const math_proc_entry math_procs[] = |
3217 | { | |
3218 | /* Integer-returning built-in math functions. */ | |
39bec121 TW |
3219 | { "$cvi", math_cvi, 1, 1 }, |
3220 | { "$int", math_int, 1, 1 }, | |
3221 | { "$sgn", math_sgn, 1, 1 }, | |
3222 | ||
d0313fb7 | 3223 | /* Float-returning built-in math functions. */ |
39bec121 TW |
3224 | { "$acos", math_acos, 1, 0 }, |
3225 | { "$asin", math_asin, 1, 0 }, | |
3226 | { "$atan", math_atan, 1, 0 }, | |
1aea3bb8 | 3227 | { "$atan2", math_atan2, 2, 0 }, |
39bec121 TW |
3228 | { "$ceil", math_ceil, 1, 0 }, |
3229 | { "$cosh", math_cosh, 1, 0 }, | |
3230 | { "$cos", math_cos, 1, 0 }, | |
3231 | { "$cvf", math_cvf, 1, 0 }, | |
3232 | { "$exp", math_exp, 1, 0 }, | |
3233 | { "$fabs", math_fabs, 1, 0 }, | |
3234 | { "$floor", math_floor, 1, 0 }, | |
3235 | { "$fmod", math_fmod, 2, 0 }, | |
3236 | { "$ldexp", math_ldexp, 2, 0 }, | |
3237 | { "$log10", math_log10, 1, 0 }, | |
3238 | { "$log", math_log, 1, 0 }, | |
3239 | { "$max", math_max, 2, 0 }, | |
3240 | { "$min", math_min, 2, 0 }, | |
3241 | { "$pow", math_pow, 2, 0 }, | |
3242 | { "$round", math_round, 1, 0 }, | |
3243 | { "$sin", math_sin, 1, 0 }, | |
3244 | { "$sinh", math_sinh, 1, 0 }, | |
3245 | { "$sqrt", math_sqrt, 1, 0 }, | |
3246 | { "$tan", math_tan, 1, 0 }, | |
3247 | { "$tanh", math_tanh, 1, 0 }, | |
3248 | { "$trunc", math_trunc, 1, 0 }, | |
3249 | { NULL, NULL, 0, 0 }, | |
3250 | }; | |
3251 | ||
3252 | void | |
3253 | md_begin () | |
3254 | { | |
6e917903 | 3255 | template *tm; |
39bec121 TW |
3256 | symbol *sym; |
3257 | const subsym_proc_entry *subsym_proc; | |
3258 | const math_proc_entry *math_proc; | |
3259 | const char *hash_err; | |
3260 | char **symname; | |
3261 | char *TIC54X_DIR = getenv ("TIC54X_DIR"); | |
3262 | char *A_DIR = TIC54X_DIR ? TIC54X_DIR : getenv ("A_DIR"); | |
3263 | ||
3264 | local_label_id = 0; | |
3265 | ||
f1e7a2c9 | 3266 | /* Look for A_DIR and add it to the include list. */ |
39bec121 TW |
3267 | if (A_DIR != NULL) |
3268 | { | |
3269 | char *tmp = xstrdup (A_DIR); | |
f1e7a2c9 | 3270 | |
1aea3bb8 NC |
3271 | do |
3272 | { | |
3273 | char *next = strchr (tmp, ';'); | |
f1e7a2c9 | 3274 | |
1aea3bb8 NC |
3275 | if (next) |
3276 | *next++ = '\0'; | |
3277 | add_include_dir (tmp); | |
3278 | tmp = next; | |
3279 | } | |
3280 | while (tmp != NULL); | |
39bec121 TW |
3281 | } |
3282 | ||
3283 | op_hash = hash_new (); | |
6e917903 | 3284 | for (tm = (template *) tic54x_optab; tm->name; tm++) |
39bec121 | 3285 | { |
6e917903 | 3286 | if (hash_find (op_hash, tm->name)) |
9a736b6b | 3287 | continue; |
6e917903 | 3288 | hash_err = hash_insert (op_hash, tm->name, (char *) tm); |
39bec121 | 3289 | if (hash_err) |
9a736b6b | 3290 | as_fatal ("Internal Error: Can't hash %s: %s", |
6e917903 | 3291 | tm->name, hash_err); |
39bec121 TW |
3292 | } |
3293 | parop_hash = hash_new (); | |
5d6255fe | 3294 | for (tm = (template *) tic54x_paroptab; tm->name; tm++) |
39bec121 | 3295 | { |
6e917903 | 3296 | if (hash_find (parop_hash, tm->name)) |
9a736b6b | 3297 | continue; |
6e917903 | 3298 | hash_err = hash_insert (parop_hash, tm->name, (char *) tm); |
39bec121 | 3299 | if (hash_err) |
9a736b6b | 3300 | as_fatal ("Internal Error: Can't hash %s: %s", |
6e917903 | 3301 | tm->name, hash_err); |
39bec121 TW |
3302 | } |
3303 | reg_hash = hash_new (); | |
1aea3bb8 | 3304 | for (sym = (symbol *) regs; sym->name; sym++) |
39bec121 | 3305 | { |
d0313fb7 | 3306 | /* Add basic registers to the symbol table. */ |
39bec121 | 3307 | symbolS *symbolP = symbol_new (sym->name, absolute_section, |
9a736b6b | 3308 | (valueT) sym->value, &zero_address_frag); |
39bec121 TW |
3309 | SF_SET_LOCAL (symbolP); |
3310 | symbol_table_insert (symbolP); | |
1aea3bb8 | 3311 | hash_err = hash_insert (reg_hash, sym->name, (char *) sym); |
39bec121 | 3312 | } |
1aea3bb8 NC |
3313 | for (sym = (symbol *) mmregs; sym->name; sym++) |
3314 | hash_err = hash_insert (reg_hash, sym->name, (char *) sym); | |
39bec121 | 3315 | mmreg_hash = hash_new (); |
1aea3bb8 | 3316 | for (sym = (symbol *) mmregs; sym->name; sym++) |
f1e7a2c9 NC |
3317 | hash_err = hash_insert (mmreg_hash, sym->name, (char *) sym); |
3318 | ||
39bec121 | 3319 | cc_hash = hash_new (); |
1aea3bb8 | 3320 | for (sym = (symbol *) condition_codes; sym->name; sym++) |
f1e7a2c9 NC |
3321 | hash_err = hash_insert (cc_hash, sym->name, (char *) sym); |
3322 | ||
39bec121 | 3323 | cc2_hash = hash_new (); |
1aea3bb8 | 3324 | for (sym = (symbol *) cc2_codes; sym->name; sym++) |
f1e7a2c9 NC |
3325 | hash_err = hash_insert (cc2_hash, sym->name, (char *) sym); |
3326 | ||
39bec121 | 3327 | cc3_hash = hash_new (); |
1aea3bb8 | 3328 | for (sym = (symbol *) cc3_codes; sym->name; sym++) |
f1e7a2c9 NC |
3329 | hash_err = hash_insert (cc3_hash, sym->name, (char *) sym); |
3330 | ||
39bec121 | 3331 | sbit_hash = hash_new (); |
1aea3bb8 | 3332 | for (sym = (symbol *) status_bits; sym->name; sym++) |
f1e7a2c9 NC |
3333 | hash_err = hash_insert (sbit_hash, sym->name, (char *) sym); |
3334 | ||
39bec121 | 3335 | misc_symbol_hash = hash_new (); |
1aea3bb8 | 3336 | for (symname = (char **) misc_symbols; *symname; symname++) |
f1e7a2c9 NC |
3337 | hash_err = hash_insert (misc_symbol_hash, *symname, *symname); |
3338 | ||
d0313fb7 NC |
3339 | /* Only the base substitution table and local label table are initialized; |
3340 | the others (for local macro substitution) get instantiated as needed. */ | |
39bec121 TW |
3341 | local_label_hash[0] = hash_new (); |
3342 | subsym_hash[0] = hash_new (); | |
3343 | for (subsym_proc = subsym_procs; subsym_proc->name; subsym_proc++) | |
f1e7a2c9 NC |
3344 | hash_err = hash_insert (subsym_hash[0], subsym_proc->name, |
3345 | (char *) subsym_proc); | |
3346 | ||
39bec121 TW |
3347 | math_hash = hash_new (); |
3348 | for (math_proc = math_procs; math_proc->name; math_proc++) | |
3349 | { | |
d0313fb7 | 3350 | /* Insert into the main subsym hash for recognition; insert into |
9a736b6b | 3351 | the math hash to actually store information. */ |
39bec121 | 3352 | hash_err = hash_insert (subsym_hash[0], math_proc->name, |
9a736b6b | 3353 | (char *) math_proc); |
39bec121 | 3354 | hash_err = hash_insert (math_hash, math_proc->name, |
9a736b6b | 3355 | (char *) math_proc); |
39bec121 TW |
3356 | } |
3357 | subsym_recurse_hash = hash_new (); | |
3358 | stag_hash = hash_new (); | |
3359 | } | |
3360 | ||
39bec121 | 3361 | static int |
f1e7a2c9 NC |
3362 | is_accumulator (operand) |
3363 | struct opstruct *operand; | |
39bec121 | 3364 | { |
1aea3bb8 | 3365 | return strcasecmp (operand->buf, "a") == 0 |
39bec121 TW |
3366 | || strcasecmp (operand->buf, "b") == 0; |
3367 | } | |
3368 | ||
9a736b6b NC |
3369 | /* Return the number of operands found, or -1 on error, copying the |
3370 | operands into the given array and the accompanying expressions into | |
3371 | the next array. */ | |
3372 | ||
39bec121 | 3373 | static int |
f1e7a2c9 NC |
3374 | get_operands (operands, line) |
3375 | struct opstruct operands[]; | |
3376 | char *line; | |
39bec121 TW |
3377 | { |
3378 | char *lptr = line; | |
3379 | int numexp = 0; | |
3380 | int expecting_operand = 0; | |
3381 | int i; | |
3382 | ||
1aea3bb8 | 3383 | while (numexp < MAX_OPERANDS && !is_end_of_line[(int) *lptr]) |
39bec121 TW |
3384 | { |
3385 | int paren_not_balanced = 0; | |
3386 | char *op_start, *op_end; | |
f1e7a2c9 | 3387 | |
3882b010 | 3388 | while (*lptr && ISSPACE (*lptr)) |
9a736b6b | 3389 | ++lptr; |
39bec121 TW |
3390 | op_start = lptr; |
3391 | while (paren_not_balanced || *lptr != ',') | |
9a736b6b NC |
3392 | { |
3393 | if (*lptr == '\0') | |
3394 | { | |
3395 | if (paren_not_balanced) | |
3396 | { | |
3397 | as_bad ("Unbalanced parenthesis in operand %d", numexp); | |
3398 | return -1; | |
3399 | } | |
3400 | else | |
3401 | break; | |
3402 | } | |
3403 | if (*lptr == '(') | |
3404 | ++paren_not_balanced; | |
3405 | else if (*lptr == ')') | |
3406 | --paren_not_balanced; | |
3407 | ++lptr; | |
3408 | } | |
39bec121 TW |
3409 | op_end = lptr; |
3410 | if (op_end != op_start) | |
9a736b6b NC |
3411 | { |
3412 | int len = op_end - op_start; | |
f1e7a2c9 | 3413 | |
9a736b6b NC |
3414 | strncpy (operands[numexp].buf, op_start, len); |
3415 | operands[numexp].buf[len] = 0; | |
3416 | /* Trim trailing spaces; while the preprocessor gets rid of most, | |
3417 | there are weird usage patterns that can introduce them | |
3418 | (i.e. using strings for macro args). */ | |
3882b010 | 3419 | while (len > 0 && ISSPACE (operands[numexp].buf[len - 1])) |
9a736b6b NC |
3420 | operands[numexp].buf[--len] = 0; |
3421 | lptr = op_end; | |
3422 | ++numexp; | |
3423 | } | |
1aea3bb8 | 3424 | else |
9a736b6b NC |
3425 | { |
3426 | if (expecting_operand || *lptr == ',') | |
3427 | { | |
3428 | as_bad ("Expecting operand after ','"); | |
3429 | return -1; | |
3430 | } | |
3431 | } | |
39bec121 | 3432 | if (*lptr == ',') |
9a736b6b NC |
3433 | { |
3434 | if (*++lptr == '\0') | |
3435 | { | |
3436 | as_bad ("Expecting operand after ','"); | |
3437 | return -1; | |
3438 | } | |
3439 | expecting_operand = 1; | |
3440 | } | |
39bec121 TW |
3441 | } |
3442 | ||
3882b010 | 3443 | while (*lptr && ISSPACE (*lptr++)) |
39bec121 | 3444 | ; |
1aea3bb8 | 3445 | if (!is_end_of_line[(int) *lptr]) |
39bec121 TW |
3446 | { |
3447 | as_bad ("Extra junk on line"); | |
3448 | return -1; | |
3449 | } | |
3450 | ||
d0313fb7 | 3451 | /* OK, now parse them into expressions. */ |
1aea3bb8 | 3452 | for (i = 0; i < numexp; i++) |
39bec121 TW |
3453 | { |
3454 | memset (&operands[i].exp, 0, sizeof (operands[i].exp)); | |
3455 | if (operands[i].buf[0] == '#') | |
9a736b6b NC |
3456 | { |
3457 | /* Immediate. */ | |
3458 | parse_expression (operands[i].buf + 1, &operands[i].exp); | |
3459 | } | |
39bec121 | 3460 | else if (operands[i].buf[0] == '@') |
9a736b6b NC |
3461 | { |
3462 | /* Direct notation. */ | |
3463 | parse_expression (operands[i].buf + 1, &operands[i].exp); | |
3464 | } | |
39bec121 | 3465 | else if (operands[i].buf[0] == '*') |
9a736b6b NC |
3466 | { |
3467 | /* Indirect. */ | |
3468 | char *paren = strchr (operands[i].buf, '('); | |
f1e7a2c9 | 3469 | |
9a736b6b NC |
3470 | /* Allow immediate syntax in the inner expression. */ |
3471 | if (paren && paren[1] == '#') | |
3472 | *++paren = '('; | |
3473 | ||
3474 | /* Pull out the lk expression or SP offset, if present. */ | |
3475 | if (paren != NULL) | |
3476 | { | |
3477 | int len = strlen (paren); | |
3478 | char *end = paren + len; | |
3479 | int c; | |
f1e7a2c9 | 3480 | |
9a736b6b NC |
3481 | while (end[-1] != ')') |
3482 | if (--end <= paren) | |
3483 | { | |
3484 | as_bad (_("Badly formed address expression")); | |
3485 | return -1; | |
3486 | } | |
3487 | c = *end; | |
3488 | *end = '\0'; | |
3489 | parse_expression (paren, &operands[i].exp); | |
3490 | *end = c; | |
3491 | } | |
3492 | else | |
3493 | operands[i].exp.X_op = O_absent; | |
3494 | } | |
39bec121 | 3495 | else |
9a736b6b | 3496 | parse_expression (operands[i].buf, &operands[i].exp); |
39bec121 TW |
3497 | } |
3498 | ||
3499 | return numexp; | |
3500 | } | |
3501 | ||
d0313fb7 | 3502 | /* Predicates for different operand types. */ |
9a736b6b | 3503 | |
39bec121 | 3504 | static int |
f1e7a2c9 NC |
3505 | is_immediate (operand) |
3506 | struct opstruct *operand; | |
39bec121 | 3507 | { |
1aea3bb8 | 3508 | return *operand->buf == '#'; |
39bec121 TW |
3509 | } |
3510 | ||
3511 | /* This is distinguished from immediate because some numbers must be constants | |
d0313fb7 | 3512 | and must *not* have the '#' prefix. */ |
9a736b6b | 3513 | |
39bec121 | 3514 | static int |
f1e7a2c9 NC |
3515 | is_absolute (operand) |
3516 | struct opstruct *operand; | |
39bec121 TW |
3517 | { |
3518 | return operand->exp.X_op == O_constant && !is_immediate (operand); | |
3519 | } | |
3520 | ||
d0313fb7 | 3521 | /* Is this an indirect operand? */ |
9a736b6b | 3522 | |
39bec121 | 3523 | static int |
f1e7a2c9 NC |
3524 | is_indirect (operand) |
3525 | struct opstruct *operand; | |
39bec121 TW |
3526 | { |
3527 | return operand->buf[0] == '*'; | |
3528 | } | |
3529 | ||
d0313fb7 | 3530 | /* Is this a valid dual-memory operand? */ |
9a736b6b | 3531 | |
39bec121 | 3532 | static int |
f1e7a2c9 NC |
3533 | is_dual (operand) |
3534 | struct opstruct *operand; | |
39bec121 TW |
3535 | { |
3536 | if (is_indirect (operand) && strncasecmp (operand->buf, "*ar", 3) == 0) | |
3537 | { | |
3538 | char *tmp = operand->buf + 3; | |
3539 | int arf; | |
3540 | int valid_mod; | |
1aea3bb8 | 3541 | |
39bec121 | 3542 | arf = *tmp++ - '0'; |
d0313fb7 | 3543 | /* Only allow *ARx, *ARx-, *ARx+, or *ARx+0%. */ |
39bec121 | 3544 | valid_mod = *tmp == '\0' || |
9a736b6b NC |
3545 | strcasecmp (tmp, "-") == 0 || |
3546 | strcasecmp (tmp, "+") == 0 || | |
3547 | strcasecmp (tmp, "+0%") == 0; | |
39bec121 TW |
3548 | return arf >= 2 && arf <= 5 && valid_mod; |
3549 | } | |
3550 | return 0; | |
3551 | } | |
3552 | ||
3553 | static int | |
f1e7a2c9 NC |
3554 | is_mmreg (operand) |
3555 | struct opstruct *operand; | |
39bec121 | 3556 | { |
9a736b6b NC |
3557 | return (is_absolute (operand) |
3558 | || is_immediate (operand) | |
3559 | || hash_find (mmreg_hash, operand->buf) != 0); | |
39bec121 TW |
3560 | } |
3561 | ||
3562 | static int | |
f1e7a2c9 NC |
3563 | is_type (operand, type) |
3564 | struct opstruct *operand; | |
3565 | enum optype type; | |
39bec121 TW |
3566 | { |
3567 | switch (type) | |
3568 | { | |
3569 | case OP_None: | |
3570 | return operand->buf[0] == 0; | |
3571 | case OP_Xmem: | |
3572 | case OP_Ymem: | |
3573 | return is_dual (operand); | |
3574 | case OP_Sind: | |
3575 | return is_indirect (operand); | |
3576 | case OP_xpmad_ms7: | |
d0313fb7 | 3577 | /* This one *must* be immediate. */ |
39bec121 TW |
3578 | return is_immediate (operand); |
3579 | case OP_xpmad: | |
3580 | case OP_pmad: | |
3581 | case OP_PA: | |
3582 | case OP_dmad: | |
3583 | case OP_Lmem: | |
3584 | case OP_MMR: | |
3585 | return 1; | |
3586 | case OP_Smem: | |
d0313fb7 | 3587 | /* Address may be a numeric, indirect, or an expression. */ |
39bec121 TW |
3588 | return !is_immediate (operand); |
3589 | case OP_MMRY: | |
3590 | case OP_MMRX: | |
3591 | return is_mmreg (operand); | |
3592 | case OP_SRC: | |
3593 | case OP_SRC1: | |
3594 | case OP_RND: | |
3595 | case OP_DST: | |
3596 | return is_accumulator (operand); | |
3597 | case OP_B: | |
3882b010 | 3598 | return is_accumulator (operand) && TOUPPER (operand->buf[0]) == 'B'; |
39bec121 | 3599 | case OP_A: |
3882b010 | 3600 | return is_accumulator (operand) && TOUPPER (operand->buf[0]) == 'A'; |
39bec121 | 3601 | case OP_ARX: |
1aea3bb8 | 3602 | return strncasecmp ("ar", operand->buf, 2) == 0 |
3882b010 | 3603 | && ISDIGIT (operand->buf[2]); |
39bec121 TW |
3604 | case OP_SBIT: |
3605 | return hash_find (sbit_hash, operand->buf) != 0 || is_absolute (operand); | |
3606 | case OP_CC: | |
3607 | return hash_find (cc_hash, operand->buf) != 0; | |
3608 | case OP_CC2: | |
3609 | return hash_find (cc2_hash, operand->buf) != 0; | |
3610 | case OP_CC3: | |
1aea3bb8 | 3611 | return hash_find (cc3_hash, operand->buf) != 0 |
9a736b6b | 3612 | || is_immediate (operand) || is_absolute (operand); |
39bec121 TW |
3613 | case OP_16: |
3614 | return (is_immediate (operand) || is_absolute (operand)) | |
9a736b6b | 3615 | && operand->exp.X_add_number == 16; |
39bec121 | 3616 | case OP_N: |
d0313fb7 | 3617 | /* Allow st0 or st1 instead of a numeric. */ |
39bec121 | 3618 | return is_absolute (operand) || is_immediate (operand) || |
9a736b6b NC |
3619 | strcasecmp ("st0", operand->buf) == 0 || |
3620 | strcasecmp ("st1", operand->buf) == 0; | |
39bec121 TW |
3621 | case OP_12: |
3622 | case OP_123: | |
3623 | return is_absolute (operand) || is_immediate (operand); | |
3624 | case OP_SHFT: | |
3625 | return (is_immediate (operand) || is_absolute (operand)) | |
9a736b6b | 3626 | && operand->exp.X_add_number >= 0 && operand->exp.X_add_number < 16; |
39bec121 | 3627 | case OP_SHIFT: |
d0313fb7 | 3628 | /* Let this one catch out-of-range values. */ |
39bec121 | 3629 | return (is_immediate (operand) || is_absolute (operand)) |
9a736b6b | 3630 | && operand->exp.X_add_number != 16; |
39bec121 TW |
3631 | case OP_BITC: |
3632 | case OP_031: | |
3633 | case OP_k8: | |
3634 | return is_absolute (operand) || is_immediate (operand); | |
3635 | case OP_k8u: | |
1aea3bb8 | 3636 | return is_immediate (operand) |
9a736b6b NC |
3637 | && operand->exp.X_op == O_constant |
3638 | && operand->exp.X_add_number >= 0 | |
3639 | && operand->exp.X_add_number < 256; | |
39bec121 TW |
3640 | case OP_lk: |
3641 | case OP_lku: | |
1aea3bb8 | 3642 | /* Allow anything; assumes opcodes are ordered with Smem operands |
9a736b6b | 3643 | versions first. */ |
39bec121 TW |
3644 | return 1; |
3645 | case OP_k5: | |
3646 | case OP_k3: | |
3647 | case OP_k9: | |
d0313fb7 | 3648 | /* Just make sure it's an integer; check range later. */ |
39bec121 TW |
3649 | return is_immediate (operand); |
3650 | case OP_T: | |
1aea3bb8 | 3651 | return strcasecmp ("t", operand->buf) == 0 || |
9a736b6b | 3652 | strcasecmp ("treg", operand->buf) == 0; |
39bec121 TW |
3653 | case OP_TS: |
3654 | return strcasecmp ("ts", operand->buf) == 0; | |
3655 | case OP_ASM: | |
3656 | return strcasecmp ("asm", operand->buf) == 0; | |
3657 | case OP_TRN: | |
3658 | return strcasecmp ("trn", operand->buf) == 0; | |
3659 | case OP_DP: | |
3660 | return strcasecmp ("dp", operand->buf) == 0; | |
3661 | case OP_ARP: | |
3662 | return strcasecmp ("arp", operand->buf) == 0; | |
3663 | default: | |
3664 | return 0; | |
3665 | } | |
3666 | } | |
3667 | ||
3668 | static int | |
3669 | operands_match (insn, operands, opcount, refoptype, minops, maxops) | |
1aea3bb8 NC |
3670 | tic54x_insn *insn; |
3671 | struct opstruct *operands; | |
3672 | int opcount; | |
3673 | const enum optype *refoptype; | |
f1e7a2c9 NC |
3674 | int minops; |
3675 | int maxops; | |
39bec121 TW |
3676 | { |
3677 | int op = 0, refop = 0; | |
3678 | ||
3679 | if (opcount == 0 && minops == 0) | |
f1e7a2c9 | 3680 | return 1; |
39bec121 TW |
3681 | |
3682 | while (op <= maxops && refop <= maxops) | |
3683 | { | |
3684 | while (!is_type (&operands[op], OPTYPE (refoptype[refop]))) | |
9a736b6b NC |
3685 | { |
3686 | /* Skip an optional template operand if it doesn't agree | |
3687 | with the current operand. */ | |
3688 | if (refoptype[refop] & OPT) | |
3689 | { | |
3690 | ++refop; | |
3691 | --maxops; | |
3692 | if (refop > maxops) | |
3693 | return 0; | |
3694 | } | |
3695 | else | |
3696 | return 0; | |
3697 | } | |
39bec121 | 3698 | |
d0313fb7 | 3699 | /* Save the actual operand type for later use. */ |
39bec121 TW |
3700 | operands[op].type = OPTYPE (refoptype[refop]); |
3701 | ++refop; | |
3702 | ++op; | |
d0313fb7 | 3703 | /* Have we matched them all yet? */ |
39bec121 | 3704 | if (op == opcount) |
9a736b6b NC |
3705 | { |
3706 | while (op < maxops) | |
3707 | { | |
3708 | /* If a later operand is *not* optional, no match. */ | |
3709 | if ((refoptype[refop] & OPT) == 0) | |
3710 | return 0; | |
3711 | /* Flag any implicit default OP_DST operands so we know to add | |
3712 | them explicitly when encoding the operand later. */ | |
3713 | if (OPTYPE (refoptype[refop]) == OP_DST) | |
3714 | insn->using_default_dst = 1; | |
3715 | ++refop; | |
3716 | ++op; | |
3717 | } | |
3718 | ||
3719 | return 1; | |
3720 | } | |
39bec121 TW |
3721 | } |
3722 | ||
3723 | return 0; | |
3724 | } | |
3725 | ||
1aea3bb8 | 3726 | /* 16-bit direct memory address |
39bec121 TW |
3727 | Explicit dmad operands are always in last word of insn (usually second |
3728 | word, but bumped to third if lk addressing is used) | |
3729 | ||
3730 | We allow *(dmad) notation because the TI assembler allows it. | |
3731 | ||
1aea3bb8 | 3732 | XPC_CODE: |
39bec121 TW |
3733 | 0 for 16-bit addresses |
3734 | 1 for full 23-bit addresses | |
d0313fb7 | 3735 | 2 for the upper 7 bits of a 23-bit address (LDX). */ |
9a736b6b | 3736 | |
39bec121 TW |
3737 | static int |
3738 | encode_dmad (insn, operand, xpc_code) | |
1aea3bb8 NC |
3739 | tic54x_insn *insn; |
3740 | struct opstruct *operand; | |
3741 | int xpc_code; | |
39bec121 TW |
3742 | { |
3743 | int op = 1 + insn->is_lkaddr; | |
3744 | ||
d0313fb7 | 3745 | /* Only allow *(dmad) expressions; all others are invalid. */ |
1aea3bb8 | 3746 | if (is_indirect (operand) && operand->buf[strlen (operand->buf) - 1] != ')') |
39bec121 TW |
3747 | { |
3748 | as_bad (_("Invalid dmad syntax '%s'"), operand->buf); | |
3749 | return 0; | |
3750 | } | |
3751 | ||
3752 | insn->opcode[op].addr_expr = operand->exp; | |
3753 | ||
3754 | if (insn->opcode[op].addr_expr.X_op == O_constant) | |
3755 | { | |
3756 | valueT value = insn->opcode[op].addr_expr.X_add_number; | |
f1e7a2c9 | 3757 | |
39bec121 | 3758 | if (xpc_code == 1) |
9a736b6b NC |
3759 | { |
3760 | insn->opcode[0].word &= 0xFF80; | |
3761 | insn->opcode[0].word |= (value >> 16) & 0x7F; | |
3762 | insn->opcode[1].word = value & 0xFFFF; | |
3763 | } | |
39bec121 | 3764 | else if (xpc_code == 2) |
9a736b6b | 3765 | insn->opcode[op].word = (value >> 16) & 0xFFFF; |
39bec121 | 3766 | else |
9a736b6b | 3767 | insn->opcode[op].word = value; |
39bec121 TW |
3768 | } |
3769 | else | |
3770 | { | |
d0313fb7 | 3771 | /* Do the fixup later; just store the expression. */ |
39bec121 TW |
3772 | insn->opcode[op].word = 0; |
3773 | insn->opcode[op].r_nchars = 2; | |
3774 | ||
3775 | if (amode == c_mode) | |
9a736b6b | 3776 | insn->opcode[op].r_type = BFD_RELOC_TIC54X_16_OF_23; |
39bec121 | 3777 | else if (xpc_code == 1) |
9a736b6b NC |
3778 | { |
3779 | /* This relocation spans two words, so adjust accordingly. */ | |
3780 | insn->opcode[0].addr_expr = operand->exp; | |
3781 | insn->opcode[0].r_type = BFD_RELOC_TIC54X_23; | |
3782 | insn->opcode[0].r_nchars = 4; | |
3783 | insn->opcode[0].unresolved = 1; | |
3784 | /* It's really 2 words, but we want to stop encoding after the | |
3785 | first, since we must encode both words at once. */ | |
3786 | insn->words = 1; | |
3787 | } | |
39bec121 | 3788 | else if (xpc_code == 2) |
9a736b6b | 3789 | insn->opcode[op].r_type = BFD_RELOC_TIC54X_MS7_OF_23; |
39bec121 | 3790 | else |
9a736b6b | 3791 | insn->opcode[op].r_type = BFD_RELOC_TIC54X_16_OF_23; |
39bec121 TW |
3792 | |
3793 | insn->opcode[op].unresolved = 1; | |
3794 | } | |
3795 | ||
3796 | return 1; | |
3797 | } | |
3798 | ||
d0313fb7 | 3799 | /* 7-bit direct address encoding. */ |
9a736b6b | 3800 | |
39bec121 TW |
3801 | static int |
3802 | encode_address (insn, operand) | |
1aea3bb8 NC |
3803 | tic54x_insn *insn; |
3804 | struct opstruct *operand; | |
39bec121 | 3805 | { |
d0313fb7 | 3806 | /* Assumes that dma addresses are *always* in word 0 of the opcode. */ |
39bec121 TW |
3807 | insn->opcode[0].addr_expr = operand->exp; |
3808 | ||
3809 | if (operand->exp.X_op == O_constant) | |
3810 | insn->opcode[0].word |= (operand->exp.X_add_number & 0x7F); | |
3811 | else | |
3812 | { | |
f1e7a2c9 NC |
3813 | if (operand->exp.X_op == O_register) |
3814 | as_bad (_("Use the .mmregs directive to use memory-mapped register names such as '%s'"), operand->buf); | |
d0313fb7 | 3815 | /* Do the fixup later; just store the expression. */ |
39bec121 TW |
3816 | insn->opcode[0].r_nchars = 1; |
3817 | insn->opcode[0].r_type = BFD_RELOC_TIC54X_PARTLS7; | |
3818 | insn->opcode[0].unresolved = 1; | |
3819 | } | |
3820 | ||
3821 | return 1; | |
3822 | } | |
3823 | ||
3824 | static int | |
f1e7a2c9 NC |
3825 | encode_indirect (insn, operand) |
3826 | tic54x_insn *insn; | |
3827 | struct opstruct *operand; | |
39bec121 TW |
3828 | { |
3829 | int arf; | |
3830 | int mod; | |
3831 | ||
3832 | if (insn->is_lkaddr) | |
3833 | { | |
d0313fb7 | 3834 | /* lk addresses always go in the second insn word. */ |
3882b010 | 3835 | mod = ((TOUPPER (operand->buf[1]) == 'A') ? 12 : |
9a736b6b NC |
3836 | (operand->buf[1] == '(') ? 15 : |
3837 | (strchr (operand->buf, '%') != NULL) ? 14 : 13); | |
39bec121 | 3838 | arf = ((mod == 12) ? operand->buf[3] - '0' : |
9a736b6b | 3839 | (mod == 15) ? 0 : operand->buf[4] - '0'); |
1aea3bb8 | 3840 | |
39bec121 TW |
3841 | insn->opcode[1].addr_expr = operand->exp; |
3842 | ||
3843 | if (operand->exp.X_op == O_constant) | |
9a736b6b | 3844 | insn->opcode[1].word = operand->exp.X_add_number; |
39bec121 | 3845 | else |
9a736b6b NC |
3846 | { |
3847 | insn->opcode[1].word = 0; | |
3848 | insn->opcode[1].r_nchars = 2; | |
3849 | insn->opcode[1].r_type = BFD_RELOC_TIC54X_16_OF_23; | |
3850 | insn->opcode[1].unresolved = 1; | |
3851 | } | |
39bec121 TW |
3852 | } |
3853 | else if (strncasecmp (operand->buf, "*sp (", 4) == 0) | |
3854 | { | |
d0313fb7 | 3855 | /* Stack offsets look the same as 7-bit direct addressing. */ |
39bec121 TW |
3856 | return encode_address (insn, operand); |
3857 | } | |
3858 | else | |
3859 | { | |
3882b010 | 3860 | arf = (TOUPPER (operand->buf[1]) == 'A' ? |
9a736b6b | 3861 | operand->buf[3] : operand->buf[4]) - '0'; |
1aea3bb8 NC |
3862 | |
3863 | if (operand->buf[1] == '+') | |
9a736b6b NC |
3864 | { |
3865 | mod = 3; /* *+ARx */ | |
3866 | if (insn->tm->flags & FL_SMR) | |
3867 | as_warn (_("Address mode *+ARx is write-only. " | |
3868 | "Results of reading are undefined.")); | |
3869 | } | |
1aea3bb8 | 3870 | else if (operand->buf[4] == '\0') |
9a736b6b | 3871 | mod = 0; /* *ARx */ |
39bec121 | 3872 | else if (operand->buf[5] == '\0') |
9a736b6b | 3873 | mod = (operand->buf[4] == '-' ? 1 : 2); /* *ARx+ / *ARx- */ |
39bec121 | 3874 | else if (operand->buf[6] == '\0') |
9a736b6b NC |
3875 | { |
3876 | if (operand->buf[5] == '0') | |
3877 | mod = (operand->buf[4] == '-' ? 5 : 6); /* *ARx+0 / *ARx-0 */ | |
3878 | else | |
3879 | mod = (operand->buf[4] == '-' ? 8 : 10);/* *ARx+% / *ARx-% */ | |
3880 | } | |
3882b010 | 3881 | else if (TOUPPER (operand->buf[6]) == 'B') |
9a736b6b | 3882 | mod = (operand->buf[4] == '-' ? 4 : 7); /* ARx+0B / *ARx-0B */ |
3882b010 | 3883 | else if (TOUPPER (operand->buf[6]) == '%') |
9a736b6b | 3884 | mod = (operand->buf[4] == '-' ? 9 : 11); /* ARx+0% / *ARx - 0% */ |
39bec121 | 3885 | else |
9a736b6b NC |
3886 | { |
3887 | as_bad (_("Unrecognized indirect address format \"%s\""), | |
3888 | operand->buf); | |
3889 | return 0; | |
3890 | } | |
1aea3bb8 | 3891 | } |
39bec121 | 3892 | |
1aea3bb8 | 3893 | insn->opcode[0].word |= 0x80 | (mod << 3) | arf; |
39bec121 TW |
3894 | |
3895 | return 1; | |
3896 | } | |
3897 | ||
3898 | static int | |
f1e7a2c9 NC |
3899 | encode_integer (insn, operand, which, min, max, mask) |
3900 | tic54x_insn *insn; | |
3901 | struct opstruct *operand; | |
3902 | int which; | |
3903 | int min; | |
3904 | int max; | |
3905 | unsigned short mask; | |
39bec121 TW |
3906 | { |
3907 | long parse, integer; | |
3908 | ||
3909 | insn->opcode[which].addr_expr = operand->exp; | |
3910 | ||
3911 | if (operand->exp.X_op == O_constant) | |
3912 | { | |
3913 | parse = operand->exp.X_add_number; | |
d0313fb7 | 3914 | /* Hack -- fixup for 16-bit hex quantities that get converted positive |
9a736b6b | 3915 | instead of negative. */ |
39bec121 | 3916 | if ((parse & 0x8000) && min == -32768 && max == 32767) |
9a736b6b | 3917 | integer = (short) parse; |
39bec121 | 3918 | else |
9a736b6b | 3919 | integer = parse; |
39bec121 TW |
3920 | |
3921 | if (integer >= min && integer <= max) | |
9a736b6b NC |
3922 | { |
3923 | insn->opcode[which].word |= (integer & mask); | |
3924 | return 1; | |
3925 | } | |
1aea3bb8 | 3926 | as_bad (_("Operand '%s' out of range (%d <= x <= %d)"), |
9a736b6b | 3927 | operand->buf, min, max); |
39bec121 TW |
3928 | } |
3929 | else | |
3930 | { | |
3931 | if (insn->opcode[which].addr_expr.X_op == O_constant) | |
9a736b6b NC |
3932 | { |
3933 | insn->opcode[which].word |= | |
3934 | insn->opcode[which].addr_expr.X_add_number & mask; | |
3935 | } | |
39bec121 | 3936 | else |
9a736b6b NC |
3937 | { |
3938 | /* Do the fixup later; just store the expression. */ | |
3939 | bfd_reloc_code_real_type rtype = | |
3940 | (mask == 0x1FF ? BFD_RELOC_TIC54X_PARTMS9 : | |
3941 | mask == 0xFFFF ? BFD_RELOC_TIC54X_16_OF_23 : | |
3942 | mask == 0x7F ? BFD_RELOC_TIC54X_PARTLS7 : BFD_RELOC_8); | |
3943 | int size = (mask == 0x1FF || mask == 0xFFFF) ? 2 : 1; | |
3944 | ||
3945 | if (rtype == BFD_RELOC_8) | |
3946 | as_bad (_("Error in relocation handling")); | |
3947 | ||
3948 | insn->opcode[which].r_nchars = size; | |
3949 | insn->opcode[which].r_type = rtype; | |
3950 | insn->opcode[which].unresolved = 1; | |
3951 | } | |
39bec121 TW |
3952 | |
3953 | return 1; | |
3954 | } | |
3955 | ||
3956 | return 0; | |
3957 | } | |
3958 | ||
3959 | static int | |
f1e7a2c9 NC |
3960 | encode_condition (insn, operand) |
3961 | tic54x_insn *insn; | |
3962 | struct opstruct *operand; | |
39bec121 | 3963 | { |
1aea3bb8 | 3964 | symbol *cc = (symbol *) hash_find (cc_hash, operand->buf); |
39bec121 TW |
3965 | if (!cc) |
3966 | { | |
3967 | as_bad (_("Unrecognized condition code \"%s\""), operand->buf); | |
3968 | return 0; | |
3969 | } | |
3970 | #define CC_GROUP 0x40 | |
3971 | #define CC_ACC 0x08 | |
3972 | #define CATG_A1 0x07 | |
3973 | #define CATG_B1 0x30 | |
3974 | #define CATG_A2 0x30 | |
3975 | #define CATG_B2 0x0C | |
3976 | #define CATG_C2 0x03 | |
d0313fb7 | 3977 | /* Disallow group 1 conditions mixed with group 2 conditions |
39bec121 | 3978 | if group 1, allow only one category A and one category B |
d0313fb7 | 3979 | if group 2, allow only one each of category A, B, and C. */ |
39bec121 TW |
3980 | if (((insn->opcode[0].word & 0xFF) != 0)) |
3981 | { | |
3982 | if ((insn->opcode[0].word & CC_GROUP) != (cc->value & CC_GROUP)) | |
9a736b6b NC |
3983 | { |
3984 | as_bad (_("Condition \"%s\" does not match preceding group"), | |
3985 | operand->buf); | |
3986 | return 0; | |
3987 | } | |
39bec121 | 3988 | if (insn->opcode[0].word & CC_GROUP) |
9a736b6b NC |
3989 | { |
3990 | if ((insn->opcode[0].word & CC_ACC) != (cc->value & CC_ACC)) | |
3991 | { | |
3992 | as_bad (_("Condition \"%s\" uses a different accumulator from " | |
3993 | "a preceding condition"), | |
3994 | operand->buf); | |
3995 | return 0; | |
3996 | } | |
3997 | if ((insn->opcode[0].word & CATG_A1) && (cc->value & CATG_A1)) | |
3998 | { | |
3999 | as_bad (_("Only one comparison conditional allowed")); | |
4000 | return 0; | |
4001 | } | |
4002 | if ((insn->opcode[0].word & CATG_B1) && (cc->value & CATG_B1)) | |
4003 | { | |
4004 | as_bad (_("Only one overflow conditional allowed")); | |
4005 | return 0; | |
4006 | } | |
4007 | } | |
f1e7a2c9 NC |
4008 | else if ( ((insn->opcode[0].word & CATG_A2) && (cc->value & CATG_A2)) |
4009 | || ((insn->opcode[0].word & CATG_B2) && (cc->value & CATG_B2)) | |
4010 | || ((insn->opcode[0].word & CATG_C2) && (cc->value & CATG_C2))) | |
9a736b6b NC |
4011 | { |
4012 | as_bad (_("Duplicate %s conditional"), operand->buf); | |
4013 | return 0; | |
4014 | } | |
39bec121 TW |
4015 | } |
4016 | ||
4017 | insn->opcode[0].word |= cc->value; | |
4018 | return 1; | |
4019 | } | |
4020 | ||
4021 | static int | |
f1e7a2c9 NC |
4022 | encode_cc3 (insn, operand) |
4023 | tic54x_insn *insn; | |
4024 | struct opstruct *operand; | |
39bec121 | 4025 | { |
1aea3bb8 | 4026 | symbol *cc3 = (symbol *) hash_find (cc3_hash, operand->buf); |
39bec121 TW |
4027 | int value = cc3 ? cc3->value : operand->exp.X_add_number << 8; |
4028 | ||
4029 | if ((value & 0x0300) != value) | |
4030 | { | |
4031 | as_bad (_("Unrecognized condition code \"%s\""), operand->buf); | |
4032 | return 0; | |
4033 | } | |
4034 | insn->opcode[0].word |= value; | |
4035 | return 1; | |
4036 | } | |
4037 | ||
4038 | static int | |
f1e7a2c9 NC |
4039 | encode_arx (insn, operand) |
4040 | tic54x_insn *insn; | |
4041 | struct opstruct *operand; | |
39bec121 TW |
4042 | { |
4043 | int arf = strlen (operand->buf) >= 3 ? operand->buf[2] - '0' : -1; | |
f1e7a2c9 | 4044 | |
39bec121 TW |
4045 | if (strncasecmp ("ar", operand->buf, 2) || arf < 0 || arf > 7) |
4046 | { | |
4047 | as_bad (_("Invalid auxiliary register (use AR0-AR7)")); | |
4048 | return 0; | |
4049 | } | |
4050 | insn->opcode[0].word |= arf; | |
4051 | return 1; | |
4052 | } | |
4053 | ||
4054 | static int | |
f1e7a2c9 NC |
4055 | encode_cc2 (insn, operand) |
4056 | tic54x_insn *insn; | |
4057 | struct opstruct *operand; | |
39bec121 | 4058 | { |
1aea3bb8 | 4059 | symbol *cc2 = (symbol *) hash_find (cc2_hash, operand->buf); |
f1e7a2c9 | 4060 | |
39bec121 TW |
4061 | if (!cc2) |
4062 | { | |
4063 | as_bad (_("Unrecognized condition code \"%s\""), operand->buf); | |
4064 | return 0; | |
4065 | } | |
4066 | insn->opcode[0].word |= cc2->value; | |
4067 | return 1; | |
4068 | } | |
4069 | ||
4070 | static int | |
4071 | encode_operand (insn, type, operand) | |
1aea3bb8 NC |
4072 | tic54x_insn *insn; |
4073 | enum optype type; | |
4074 | struct opstruct *operand; | |
39bec121 | 4075 | { |
6e917903 | 4076 | int ext = (insn->tm->flags & FL_EXT) != 0; |
39bec121 TW |
4077 | |
4078 | if (type == OP_MMR && operand->exp.X_op != O_constant) | |
4079 | { | |
d0313fb7 | 4080 | /* Disallow long-constant addressing for memory-mapped addressing. */ |
39bec121 | 4081 | if (insn->is_lkaddr) |
9a736b6b NC |
4082 | { |
4083 | as_bad (_("lk addressing modes are invalid for memory-mapped " | |
4084 | "register addressing")); | |
4085 | return 0; | |
4086 | } | |
39bec121 | 4087 | type = OP_Smem; |
d0313fb7 | 4088 | /* Warn about *+ARx when used with MMR operands. */ |
39bec121 | 4089 | if (strncasecmp (operand->buf, "*+ar", 4) == 0) |
9a736b6b NC |
4090 | { |
4091 | as_warn (_("Address mode *+ARx is not allowed in memory-mapped " | |
4092 | "register addressing. Resulting behavior is " | |
4093 | "undefined.")); | |
4094 | } | |
39bec121 TW |
4095 | } |
4096 | ||
4097 | switch (type) | |
4098 | { | |
4099 | case OP_None: | |
4100 | return 1; | |
4101 | case OP_dmad: | |
d0313fb7 | 4102 | /* 16-bit immediate value. */ |
39bec121 TW |
4103 | return encode_dmad (insn, operand, 0); |
4104 | case OP_SRC: | |
3882b010 | 4105 | if (TOUPPER (*operand->buf) == 'B') |
9a736b6b NC |
4106 | { |
4107 | insn->opcode[ext ? (1 + insn->is_lkaddr) : 0].word |= (1 << 9); | |
4108 | if (insn->using_default_dst) | |
4109 | insn->opcode[ext ? (1 + insn->is_lkaddr) : 0].word |= (1 << 8); | |
4110 | } | |
39bec121 TW |
4111 | return 1; |
4112 | case OP_RND: | |
5f5e16be | 4113 | /* Make sure this agrees with the OP_DST operand. */ |
3882b010 | 4114 | if (!((TOUPPER (operand->buf[0]) == 'B') ^ |
9a736b6b NC |
4115 | ((insn->opcode[0].word & (1 << 8)) != 0))) |
4116 | { | |
4117 | as_bad (_("Destination accumulator for each part of this parallel " | |
4118 | "instruction must be different")); | |
4119 | return 0; | |
4120 | } | |
39bec121 TW |
4121 | return 1; |
4122 | case OP_SRC1: | |
4123 | case OP_DST: | |
3882b010 | 4124 | if (TOUPPER (operand->buf[0]) == 'B') |
9a736b6b | 4125 | insn->opcode[ext ? (1 + insn->is_lkaddr) : 0].word |= (1 << 8); |
39bec121 TW |
4126 | return 1; |
4127 | case OP_Xmem: | |
4128 | case OP_Ymem: | |
1aea3bb8 | 4129 | { |
9a736b6b NC |
4130 | int mod = (operand->buf[4] == '\0' ? 0 : /* *arx */ |
4131 | operand->buf[4] == '-' ? 1 : /* *arx- */ | |
4132 | operand->buf[5] == '\0' ? 2 : 3); /* *arx+, *arx+0% */ | |
1aea3bb8 NC |
4133 | int arf = operand->buf[3] - '0' - 2; |
4134 | int code = (mod << 2) | arf; | |
4135 | insn->opcode[0].word |= (code << (type == OP_Xmem ? 4 : 0)); | |
4136 | return 1; | |
4137 | } | |
39bec121 TW |
4138 | case OP_Lmem: |
4139 | case OP_Smem: | |
4140 | if (!is_indirect (operand)) | |
9a736b6b NC |
4141 | return encode_address (insn, operand); |
4142 | /* Fall through. */ | |
39bec121 TW |
4143 | case OP_Sind: |
4144 | return encode_indirect (insn, operand); | |
4145 | case OP_xpmad_ms7: | |
4146 | return encode_dmad (insn, operand, 2); | |
4147 | case OP_xpmad: | |
4148 | return encode_dmad (insn, operand, 1); | |
4149 | case OP_PA: | |
4150 | case OP_pmad: | |
4151 | return encode_dmad (insn, operand, 0); | |
4152 | case OP_ARX: | |
4153 | return encode_arx (insn, operand); | |
4154 | case OP_MMRX: | |
4155 | case OP_MMRY: | |
4156 | case OP_MMR: | |
1aea3bb8 NC |
4157 | { |
4158 | int value = operand->exp.X_add_number; | |
4159 | ||
4160 | if (type == OP_MMR) | |
4161 | insn->opcode[0].word |= value; | |
4162 | else | |
4163 | { | |
4164 | if (value < 16 || value > 24) | |
4165 | { | |
4166 | as_bad (_("Memory mapped register \"%s\" out of range"), | |
4167 | operand->buf); | |
4168 | return 0; | |
4169 | } | |
4170 | if (type == OP_MMRX) | |
4171 | insn->opcode[0].word |= (value - 16) << 4; | |
4172 | else | |
4173 | insn->opcode[0].word |= (value - 16); | |
4174 | } | |
4175 | return 1; | |
39bec121 | 4176 | } |
39bec121 TW |
4177 | case OP_B: |
4178 | case OP_A: | |
4179 | return 1; | |
4180 | case OP_SHFT: | |
1aea3bb8 | 4181 | return encode_integer (insn, operand, ext + insn->is_lkaddr, |
9a736b6b | 4182 | 0, 15, 0xF); |
39bec121 | 4183 | case OP_SHIFT: |
1aea3bb8 | 4184 | return encode_integer (insn, operand, ext + insn->is_lkaddr, |
9a736b6b | 4185 | -16, 15, 0x1F); |
39bec121 TW |
4186 | case OP_lk: |
4187 | return encode_integer (insn, operand, 1 + insn->is_lkaddr, | |
9a736b6b | 4188 | -32768, 32767, 0xFFFF); |
39bec121 TW |
4189 | case OP_CC: |
4190 | return encode_condition (insn, operand); | |
4191 | case OP_CC2: | |
4192 | return encode_cc2 (insn, operand); | |
4193 | case OP_CC3: | |
4194 | return encode_cc3 (insn, operand); | |
4195 | case OP_BITC: | |
4196 | return encode_integer (insn, operand, 0, 0, 15, 0xF); | |
4197 | case OP_k8: | |
4198 | return encode_integer (insn, operand, 0, -128, 127, 0xFF); | |
4199 | case OP_123: | |
1aea3bb8 NC |
4200 | { |
4201 | int value = operand->exp.X_add_number; | |
4202 | int code; | |
4203 | if (value < 1 || value > 3) | |
4204 | { | |
4205 | as_bad (_("Invalid operand (use 1, 2, or 3)")); | |
4206 | return 0; | |
4207 | } | |
4208 | code = value == 1 ? 0 : value == 2 ? 0x2 : 0x1; | |
4209 | insn->opcode[0].word |= (code << 8); | |
4210 | return 1; | |
4211 | } | |
39bec121 TW |
4212 | case OP_031: |
4213 | return encode_integer (insn, operand, 0, 0, 31, 0x1F); | |
4214 | case OP_k8u: | |
4215 | return encode_integer (insn, operand, 0, 0, 255, 0xFF); | |
4216 | case OP_lku: | |
1aea3bb8 | 4217 | return encode_integer (insn, operand, 1 + insn->is_lkaddr, |
9a736b6b | 4218 | 0, 65535, 0xFFFF); |
39bec121 | 4219 | case OP_SBIT: |
1aea3bb8 NC |
4220 | { |
4221 | symbol *sbit = (symbol *) hash_find (sbit_hash, operand->buf); | |
4222 | int value = is_absolute (operand) ? | |
4223 | operand->exp.X_add_number : (sbit ? sbit->value : -1); | |
4224 | int reg = 0; | |
4225 | ||
4226 | if (insn->opcount == 1) | |
4227 | { | |
4228 | if (!sbit) | |
4229 | { | |
4230 | as_bad (_("A status register or status bit name is required")); | |
4231 | return 0; | |
4232 | } | |
4233 | /* Guess the register based on the status bit; "ovb" is the last | |
4234 | status bit defined for st0. */ | |
4235 | if (sbit > (symbol *) hash_find (sbit_hash, "ovb")) | |
4236 | reg = 1; | |
4237 | } | |
4238 | if (value == -1) | |
4239 | { | |
4240 | as_bad (_("Unrecognized status bit \"%s\""), operand->buf); | |
4241 | return 0; | |
4242 | } | |
4243 | insn->opcode[0].word |= value; | |
4244 | insn->opcode[0].word |= (reg << 9); | |
4245 | return 1; | |
4246 | } | |
39bec121 TW |
4247 | case OP_N: |
4248 | if (strcasecmp (operand->buf, "st0") == 0 | |
9a736b6b NC |
4249 | || strcasecmp (operand->buf, "st1") == 0) |
4250 | { | |
4251 | insn->opcode[0].word |= | |
4252 | ((unsigned short) (operand->buf[2] - '0')) << 9; | |
4253 | return 1; | |
4254 | } | |
39bec121 | 4255 | else if (operand->exp.X_op == O_constant |
9a736b6b NC |
4256 | && (operand->exp.X_add_number == 0 |
4257 | || operand->exp.X_add_number == 1)) | |
4258 | { | |
4259 | insn->opcode[0].word |= | |
4260 | ((unsigned short) (operand->exp.X_add_number)) << 9; | |
4261 | return 1; | |
4262 | } | |
39bec121 TW |
4263 | as_bad (_("Invalid status register \"%s\""), operand->buf); |
4264 | return 0; | |
4265 | case OP_k5: | |
4266 | return encode_integer (insn, operand, 0, -16, 15, 0x1F); | |
4267 | case OP_k3: | |
4268 | return encode_integer (insn, operand, 0, 0, 7, 0x7); | |
4269 | case OP_k9: | |
4270 | return encode_integer (insn, operand, 0, 0, 0x1FF, 0x1FF); | |
4271 | case OP_12: | |
1aea3bb8 | 4272 | if (operand->exp.X_add_number != 1 |
9a736b6b NC |
4273 | && operand->exp.X_add_number != 2) |
4274 | { | |
4275 | as_bad (_("Operand \"%s\" out of range (use 1 or 2)"), operand->buf); | |
4276 | return 0; | |
4277 | } | |
39bec121 TW |
4278 | insn->opcode[0].word |= (operand->exp.X_add_number - 1) << 9; |
4279 | return 1; | |
4280 | case OP_16: | |
4281 | case OP_T: | |
4282 | case OP_TS: | |
4283 | case OP_ASM: | |
4284 | case OP_TRN: | |
4285 | case OP_DP: | |
4286 | case OP_ARP: | |
d0313fb7 | 4287 | /* No encoding necessary. */ |
39bec121 TW |
4288 | return 1; |
4289 | default: | |
4290 | return 0; | |
4291 | } | |
4292 | ||
4293 | return 1; | |
4294 | } | |
4295 | ||
4296 | static void | |
f1e7a2c9 NC |
4297 | emit_insn (insn) |
4298 | tic54x_insn *insn; | |
39bec121 TW |
4299 | { |
4300 | int i; | |
6e917903 TW |
4301 | flagword oldflags = bfd_get_section_flags (stdoutput, now_seg); |
4302 | flagword flags = oldflags | SEC_CODE; | |
4303 | ||
4304 | if (! bfd_set_section_flags (stdoutput, now_seg, flags)) | |
4305 | as_warn (_("error setting flags for \"%s\": %s"), | |
4306 | bfd_section_name (stdoutput, now_seg), | |
4307 | bfd_errmsg (bfd_get_error ())); | |
1aea3bb8 NC |
4308 | |
4309 | for (i = 0; i < insn->words; i++) | |
39bec121 | 4310 | { |
1aea3bb8 | 4311 | int size = (insn->opcode[i].unresolved |
9a736b6b | 4312 | && insn->opcode[i].r_type == BFD_RELOC_TIC54X_23) ? 4 : 2; |
39bec121 TW |
4313 | char *p = frag_more (size); |
4314 | ||
4315 | if (size == 2) | |
9a736b6b | 4316 | md_number_to_chars (p, (valueT) insn->opcode[i].word, 2); |
39bec121 | 4317 | else |
9a736b6b | 4318 | md_number_to_chars (p, (valueT) insn->opcode[i].word << 16, 4); |
1aea3bb8 | 4319 | |
39bec121 | 4320 | if (insn->opcode[i].unresolved) |
9a736b6b NC |
4321 | fix_new_exp (frag_now, p - frag_now->fr_literal, |
4322 | insn->opcode[i].r_nchars, &insn->opcode[i].addr_expr, | |
b34976b6 | 4323 | FALSE, insn->opcode[i].r_type); |
39bec121 TW |
4324 | } |
4325 | } | |
4326 | ||
1aea3bb8 | 4327 | /* Convert the operand strings into appropriate opcode values |
d0313fb7 | 4328 | return the total number of words used by the instruction. */ |
9a736b6b | 4329 | |
39bec121 | 4330 | static int |
f1e7a2c9 NC |
4331 | build_insn (insn) |
4332 | tic54x_insn *insn; | |
39bec121 TW |
4333 | { |
4334 | int i; | |
4335 | ||
d0313fb7 | 4336 | /* Only non-parallel instructions support lk addressing. */ |
6e917903 | 4337 | if (!(insn->tm->flags & FL_PAR)) |
39bec121 | 4338 | { |
1aea3bb8 | 4339 | for (i = 0; i < insn->opcount; i++) |
9a736b6b NC |
4340 | { |
4341 | if ((OPTYPE (insn->operands[i].type) == OP_Smem | |
4342 | || OPTYPE (insn->operands[i].type) == OP_Lmem | |
4343 | || OPTYPE (insn->operands[i].type) == OP_Sind) | |
4344 | && strchr (insn->operands[i].buf, '(') | |
4345 | /* Don't mistake stack-relative addressing for lk addressing. */ | |
4346 | && strncasecmp (insn->operands[i].buf, "*sp (", 4) != 0) | |
4347 | { | |
4348 | insn->is_lkaddr = 1; | |
4349 | insn->lkoperand = i; | |
4350 | break; | |
4351 | } | |
4352 | } | |
39bec121 | 4353 | } |
6e917903 | 4354 | insn->words = insn->tm->words + insn->is_lkaddr; |
39bec121 | 4355 | |
6e917903 TW |
4356 | insn->opcode[0].word = insn->tm->opcode; |
4357 | if (insn->tm->flags & FL_EXT) | |
1aea3bb8 | 4358 | insn->opcode[1 + insn->is_lkaddr].word = insn->tm->opcode2; |
39bec121 | 4359 | |
9a736b6b | 4360 | for (i = 0; i < insn->opcount; i++) |
39bec121 TW |
4361 | { |
4362 | enum optype type = insn->operands[i].type; | |
f1e7a2c9 | 4363 | |
39bec121 | 4364 | if (!encode_operand (insn, type, &insn->operands[i])) |
9a736b6b | 4365 | return 0; |
39bec121 | 4366 | } |
6e917903 | 4367 | if (insn->tm->flags & FL_PAR) |
9a736b6b NC |
4368 | for (i = 0; i < insn->paropcount; i++) |
4369 | { | |
4370 | enum optype partype = insn->paroperands[i].type; | |
f1e7a2c9 | 4371 | |
9a736b6b NC |
4372 | if (!encode_operand (insn, partype, &insn->paroperands[i])) |
4373 | return 0; | |
4374 | } | |
39bec121 TW |
4375 | |
4376 | emit_insn (insn); | |
4377 | ||
4378 | return insn->words; | |
4379 | } | |
4380 | ||
4381 | static int | |
f1e7a2c9 NC |
4382 | optimize_insn (insn) |
4383 | tic54x_insn *insn; | |
39bec121 | 4384 | { |
1aea3bb8 | 4385 | /* Optimize some instructions, helping out the brain-dead programmer. */ |
39bec121 TW |
4386 | #define is_zero(op) ((op).exp.X_op == O_constant && (op).exp.X_add_number == 0) |
4387 | if (strcasecmp (insn->tm->name, "add") == 0) | |
4388 | { | |
9a736b6b NC |
4389 | if (insn->opcount > 1 |
4390 | && is_accumulator (&insn->operands[insn->opcount - 2]) | |
4391 | && is_accumulator (&insn->operands[insn->opcount - 1]) | |
4392 | && strcasecmp (insn->operands[insn->opcount - 2].buf, | |
4393 | insn->operands[insn->opcount - 1].buf) == 0) | |
4394 | { | |
4395 | --insn->opcount; | |
4396 | insn->using_default_dst = 1; | |
4397 | return 1; | |
4398 | } | |
1aea3bb8 | 4399 | |
d0313fb7 | 4400 | /* Try to collapse if Xmem and shift count is zero. */ |
9a736b6b NC |
4401 | if ((OPTYPE (insn->tm->operand_types[0]) == OP_Xmem |
4402 | && OPTYPE (insn->tm->operand_types[1]) == OP_SHFT | |
4403 | && is_zero (insn->operands[1])) | |
4404 | /* Or if Smem, shift is zero or absent, and SRC == DST. */ | |
4405 | || (OPTYPE (insn->tm->operand_types[0]) == OP_Smem | |
4406 | && OPTYPE (insn->tm->operand_types[1]) == OP_SHIFT | |
4407 | && is_type (&insn->operands[1], OP_SHIFT) | |
4408 | && is_zero (insn->operands[1]) && insn->opcount == 3)) | |
4409 | { | |
4410 | insn->operands[1] = insn->operands[2]; | |
4411 | insn->opcount = 2; | |
4412 | return 1; | |
4413 | } | |
39bec121 TW |
4414 | } |
4415 | else if (strcasecmp (insn->tm->name, "ld") == 0) | |
4416 | { | |
4417 | if (insn->opcount == 3 && insn->operands[0].type != OP_SRC) | |
9a736b6b NC |
4418 | { |
4419 | if ((OPTYPE (insn->tm->operand_types[1]) == OP_SHIFT | |
4420 | || OPTYPE (insn->tm->operand_types[1]) == OP_SHFT) | |
4421 | && is_zero (insn->operands[1]) | |
4422 | && (OPTYPE (insn->tm->operand_types[0]) != OP_lk | |
4423 | || (insn->operands[0].exp.X_op == O_constant | |
4424 | && insn->operands[0].exp.X_add_number <= 255 | |
4425 | && insn->operands[0].exp.X_add_number >= 0))) | |
4426 | { | |
4427 | insn->operands[1] = insn->operands[2]; | |
4428 | insn->opcount = 2; | |
4429 | return 1; | |
4430 | } | |
4431 | } | |
4432 | } | |
4433 | else if (strcasecmp (insn->tm->name, "sth") == 0 | |
4434 | || strcasecmp (insn->tm->name, "stl") == 0) | |
4435 | { | |
4436 | if ((OPTYPE (insn->tm->operand_types[1]) == OP_SHIFT | |
4437 | || OPTYPE (insn->tm->operand_types[1]) == OP_SHFT) | |
4438 | && is_zero (insn->operands[1])) | |
4439 | { | |
4440 | insn->operands[1] = insn->operands[2]; | |
4441 | insn->opcount = 2; | |
4442 | return 1; | |
4443 | } | |
39bec121 TW |
4444 | } |
4445 | else if (strcasecmp (insn->tm->name, "sub") == 0) | |
4446 | { | |
9a736b6b NC |
4447 | if (insn->opcount > 1 |
4448 | && is_accumulator (&insn->operands[insn->opcount - 2]) | |
4449 | && is_accumulator (&insn->operands[insn->opcount - 1]) | |
4450 | && strcasecmp (insn->operands[insn->opcount - 2].buf, | |
4451 | insn->operands[insn->opcount - 1].buf) == 0) | |
4452 | { | |
4453 | --insn->opcount; | |
4454 | insn->using_default_dst = 1; | |
4455 | return 1; | |
4456 | } | |
4457 | ||
f1e7a2c9 | 4458 | if ( ((OPTYPE (insn->tm->operand_types[0]) == OP_Smem |
9a736b6b NC |
4459 | && OPTYPE (insn->tm->operand_types[1]) == OP_SHIFT) |
4460 | || (OPTYPE (insn->tm->operand_types[0]) == OP_Xmem | |
f1e7a2c9 | 4461 | && OPTYPE (insn->tm->operand_types[1]) == OP_SHFT)) |
9a736b6b NC |
4462 | && is_zero (insn->operands[1]) |
4463 | && insn->opcount == 3) | |
4464 | { | |
4465 | insn->operands[1] = insn->operands[2]; | |
4466 | insn->opcount = 2; | |
4467 | return 1; | |
4468 | } | |
39bec121 TW |
4469 | } |
4470 | return 0; | |
4471 | } | |
4472 | ||
d0313fb7 | 4473 | /* Find a matching template if possible, and get the operand strings. */ |
9a736b6b | 4474 | |
39bec121 | 4475 | static int |
f1e7a2c9 NC |
4476 | tic54x_parse_insn (insn, line) |
4477 | tic54x_insn *insn; | |
4478 | char *line; | |
39bec121 | 4479 | { |
1aea3bb8 | 4480 | insn->tm = (template *) hash_find (op_hash, insn->mnemonic); |
39bec121 TW |
4481 | if (!insn->tm) |
4482 | { | |
4483 | as_bad (_("Unrecognized instruction \"%s\""), insn->mnemonic); | |
4484 | return 0; | |
4485 | } | |
4486 | ||
4487 | insn->opcount = get_operands (insn->operands, line); | |
4488 | if (insn->opcount < 0) | |
1aea3bb8 | 4489 | return 0; |
39bec121 | 4490 | |
d0313fb7 | 4491 | /* Check each variation of operands for this mnemonic. */ |
39bec121 TW |
4492 | while (insn->tm->name && strcasecmp (insn->tm->name, insn->mnemonic) == 0) |
4493 | { | |
9a736b6b NC |
4494 | if (insn->opcount >= insn->tm->minops |
4495 | && insn->opcount <= insn->tm->maxops | |
4496 | && operands_match (insn, &insn->operands[0], insn->opcount, | |
4497 | insn->tm->operand_types, | |
4498 | insn->tm->minops, insn->tm->maxops)) | |
4499 | { | |
4500 | /* SUCCESS! now try some optimizations. */ | |
4501 | if (optimize_insn (insn)) | |
4502 | { | |
4503 | insn->tm = (template *) hash_find (op_hash, | |
1aea3bb8 | 4504 | insn->mnemonic); |
9a736b6b NC |
4505 | continue; |
4506 | } | |
39bec121 | 4507 | |
9a736b6b NC |
4508 | return 1; |
4509 | } | |
39bec121 TW |
4510 | ++(insn->tm); |
4511 | } | |
1aea3bb8 NC |
4512 | as_bad (_("Unrecognized operand list '%s' for instruction '%s'"), |
4513 | line, insn->mnemonic); | |
39bec121 TW |
4514 | return 0; |
4515 | } | |
4516 | ||
d0313fb7 NC |
4517 | /* We set this in start_line_hook, 'cause if we do a line replacement, we |
4518 | won't be able to see the next line. */ | |
39bec121 | 4519 | static int parallel_on_next_line_hint = 0; |
9a736b6b | 4520 | |
39bec121 | 4521 | /* See if this is part of a parallel instruction |
d0313fb7 | 4522 | Look for a subsequent line starting with "||". */ |
9a736b6b | 4523 | |
39bec121 | 4524 | static int |
f1e7a2c9 NC |
4525 | next_line_shows_parallel (next_line) |
4526 | char *next_line; | |
39bec121 | 4527 | { |
9a736b6b | 4528 | /* Look for the second half. */ |
3882b010 | 4529 | while (ISSPACE (*next_line)) |
39bec121 TW |
4530 | ++next_line; |
4531 | ||
9a736b6b NC |
4532 | return (next_line[0] == PARALLEL_SEPARATOR |
4533 | && next_line[1] == PARALLEL_SEPARATOR); | |
39bec121 TW |
4534 | } |
4535 | ||
4536 | static int | |
f1e7a2c9 NC |
4537 | tic54x_parse_parallel_insn_firstline (insn, line) |
4538 | tic54x_insn *insn; | |
4539 | char *line; | |
39bec121 | 4540 | { |
6e917903 TW |
4541 | insn->tm = (template *) hash_find (parop_hash, insn->mnemonic); |
4542 | if (!insn->tm) | |
39bec121 | 4543 | { |
1aea3bb8 | 4544 | as_bad (_("Unrecognized parallel instruction \"%s\""), |
9a736b6b | 4545 | insn->mnemonic); |
39bec121 TW |
4546 | return 0; |
4547 | } | |
4548 | ||
6e917903 TW |
4549 | while (insn->tm->name && strcasecmp (insn->tm->name, |
4550 | insn->mnemonic) == 0) | |
39bec121 TW |
4551 | { |
4552 | insn->opcount = get_operands (insn->operands, line); | |
4553 | if (insn->opcount < 0) | |
9a736b6b NC |
4554 | return 0; |
4555 | if (insn->opcount == 2 | |
4556 | && operands_match (insn, &insn->operands[0], insn->opcount, | |
6e917903 | 4557 | insn->tm->operand_types, 2, 2)) |
9a736b6b NC |
4558 | { |
4559 | return 1; | |
4560 | } | |
6e917903 | 4561 | ++(insn->tm); |
39bec121 | 4562 | } |
d0313fb7 | 4563 | /* Didn't find a matching parallel; try for a normal insn. */ |
39bec121 TW |
4564 | return 0; |
4565 | } | |
4566 | ||
d0313fb7 | 4567 | /* Parse the second line of a two-line parallel instruction. */ |
9a736b6b | 4568 | |
39bec121 | 4569 | static int |
f1e7a2c9 NC |
4570 | tic54x_parse_parallel_insn_lastline (insn, line) |
4571 | tic54x_insn *insn; | |
4572 | char *line; | |
39bec121 TW |
4573 | { |
4574 | int valid_mnemonic = 0; | |
1aea3bb8 | 4575 | |
39bec121 | 4576 | insn->paropcount = get_operands (insn->paroperands, line); |
6e917903 | 4577 | while (insn->tm->name && strcasecmp (insn->tm->name, |
9a736b6b | 4578 | insn->mnemonic) == 0) |
39bec121 | 4579 | { |
6e917903 | 4580 | if (strcasecmp (insn->tm->parname, insn->parmnemonic) == 0) |
9a736b6b NC |
4581 | { |
4582 | valid_mnemonic = 1; | |
f1e7a2c9 | 4583 | |
6e917903 TW |
4584 | if (insn->paropcount >= insn->tm->minops |
4585 | && insn->paropcount <= insn->tm->maxops | |
9a736b6b NC |
4586 | && operands_match (insn, insn->paroperands, |
4587 | insn->paropcount, | |
6e917903 TW |
4588 | insn->tm->paroperand_types, |
4589 | insn->tm->minops, insn->tm->maxops)) | |
f1e7a2c9 | 4590 | return 1; |
9a736b6b | 4591 | } |
6e917903 | 4592 | ++(insn->tm); |
39bec121 TW |
4593 | } |
4594 | if (valid_mnemonic) | |
4595 | as_bad (_("Invalid operand (s) for parallel instruction \"%s\""), | |
9a736b6b | 4596 | insn->parmnemonic); |
39bec121 TW |
4597 | else |
4598 | as_bad (_("Unrecognized parallel instruction combination \"%s || %s\""), | |
9a736b6b | 4599 | insn->mnemonic, insn->parmnemonic); |
39bec121 TW |
4600 | |
4601 | return 0; | |
4602 | } | |
4603 | ||
d0313fb7 | 4604 | /* If quotes found, return copy of line up to closing quote; |
9a736b6b NC |
4605 | otherwise up until terminator. |
4606 | If it's a string, pass as-is; otherwise attempt substitution symbol | |
d0313fb7 | 4607 | replacement on the value. */ |
9a736b6b | 4608 | |
39bec121 | 4609 | static char * |
f1e7a2c9 NC |
4610 | subsym_get_arg (line, terminators, str, nosub) |
4611 | char *line; | |
4612 | char *terminators; | |
4613 | char **str; | |
4614 | int nosub; | |
39bec121 TW |
4615 | { |
4616 | char *ptr = line; | |
4617 | char *endp; | |
4618 | int is_string = *line == '"'; | |
3882b010 | 4619 | int is_char = ISDIGIT (*line); |
39bec121 TW |
4620 | |
4621 | if (is_char) | |
4622 | { | |
3882b010 | 4623 | while (ISDIGIT (*ptr)) |
9a736b6b | 4624 | ++ptr; |
39bec121 TW |
4625 | endp = ptr; |
4626 | *str = xmalloc (ptr - line + 1); | |
4627 | strncpy (*str, line, ptr - line); | |
4628 | (*str)[ptr - line] = 0; | |
4629 | } | |
4630 | else if (is_string) | |
4631 | { | |
4632 | char *savedp = input_line_pointer; | |
4633 | int len; | |
f1e7a2c9 | 4634 | |
39bec121 TW |
4635 | input_line_pointer = ptr; |
4636 | *str = demand_copy_C_string (&len); | |
4637 | endp = input_line_pointer; | |
4638 | input_line_pointer = savedp; | |
4639 | ||
d0313fb7 | 4640 | /* Do forced substitutions if requested. */ |
39bec121 | 4641 | if (!nosub && **str == ':') |
9a736b6b | 4642 | *str = subsym_substitute (*str, 1); |
39bec121 TW |
4643 | } |
4644 | else | |
4645 | { | |
4646 | char *term = terminators; | |
4647 | char *value = NULL; | |
4648 | ||
4649 | while (*ptr && *ptr != *term) | |
9a736b6b NC |
4650 | { |
4651 | if (!*term) | |
4652 | { | |
4653 | term = terminators; | |
4654 | ++ptr; | |
4655 | } | |
4656 | else | |
4657 | ++term; | |
4658 | } | |
39bec121 TW |
4659 | endp = ptr; |
4660 | *str = xmalloc (ptr - line + 1); | |
4661 | strncpy (*str, line, ptr - line); | |
4662 | (*str)[ptr - line] = 0; | |
d0313fb7 | 4663 | /* Do simple substitution, if available. */ |
39bec121 | 4664 | if (!nosub && (value = subsym_lookup (*str, macro_level)) != NULL) |
1aea3bb8 | 4665 | *str = value; |
39bec121 TW |
4666 | } |
4667 | ||
4668 | return endp; | |
4669 | } | |
4670 | ||
d0313fb7 | 4671 | /* Replace the given substitution string. |
39bec121 TW |
4672 | We start at the innermost macro level, so that existing locals remain local |
4673 | Note: we're treating macro args identically to .var's; I don't know if | |
d0313fb7 | 4674 | that's compatible w/TI's assembler. */ |
9a736b6b | 4675 | |
39bec121 | 4676 | static void |
d0313fb7 NC |
4677 | subsym_create_or_replace (name, value) |
4678 | char *name; | |
4679 | char *value; | |
39bec121 TW |
4680 | { |
4681 | int i; | |
4682 | ||
1aea3bb8 | 4683 | for (i = macro_level; i > 0; i--) |
39bec121 TW |
4684 | { |
4685 | if (hash_find (subsym_hash[i], name)) | |
9a736b6b NC |
4686 | { |
4687 | hash_replace (subsym_hash[i], name, value); | |
4688 | return; | |
4689 | } | |
39bec121 TW |
4690 | } |
4691 | if (hash_find (subsym_hash[0], name)) | |
4692 | hash_replace (subsym_hash[0], name, value); | |
4693 | else | |
4694 | hash_insert (subsym_hash[0], name, value); | |
4695 | } | |
4696 | ||
9a736b6b | 4697 | /* Look up the substitution string replacement for the given symbol. |
33b7f697 | 4698 | Start with the innermost macro substitution table given and work |
9a736b6b NC |
4699 | outwards. */ |
4700 | ||
39bec121 | 4701 | static char * |
d0313fb7 NC |
4702 | subsym_lookup (name, nest_level) |
4703 | char *name; | |
4704 | int nest_level; | |
39bec121 TW |
4705 | { |
4706 | char *value = hash_find (subsym_hash[nest_level], name); | |
4707 | ||
4708 | if (value || nest_level == 0) | |
4709 | return value; | |
4710 | ||
1aea3bb8 | 4711 | return subsym_lookup (name, nest_level - 1); |
39bec121 TW |
4712 | } |
4713 | ||
d0313fb7 | 4714 | /* Do substitution-symbol replacement on the given line (recursively). |
1aea3bb8 | 4715 | return the argument if no substitution was done |
39bec121 TW |
4716 | |
4717 | Also look for built-in functions ($func (arg)) and local labels. | |
4718 | ||
d0313fb7 | 4719 | If FORCED is set, look for forced substitutions of the form ':SYMBOL:'. */ |
9a736b6b | 4720 | |
39bec121 | 4721 | static char * |
f1e7a2c9 NC |
4722 | subsym_substitute (line, forced) |
4723 | char * line; | |
4724 | int forced; | |
39bec121 | 4725 | { |
d0313fb7 NC |
4726 | /* For each apparent symbol, see if it's a substitution symbol, and if so, |
4727 | replace it in the input. */ | |
9a736b6b NC |
4728 | char *replacement; /* current replacement for LINE. */ |
4729 | char *head; /* Start of line. */ | |
4730 | char *ptr; /* Current examination point. */ | |
4731 | int changed = 0; /* Did we make a substitution? */ | |
4732 | int eval_line = 0; /* Is this line a .eval/.asg statement? */ | |
4733 | int eval_symbol = 0; /* Are we in the middle of the symbol for | |
4734 | .eval/.asg? */ | |
39bec121 TW |
4735 | char *eval_end = NULL; |
4736 | int recurse = 1; | |
4737 | int line_conditional = 0; | |
4738 | char *tmp; | |
4739 | ||
d0313fb7 | 4740 | /* Work with a copy of the input line. */ |
39bec121 TW |
4741 | replacement = xmalloc (strlen (line) + 1); |
4742 | strcpy (replacement, line); | |
4743 | ||
4744 | ptr = head = replacement; | |
4745 | ||
d0313fb7 | 4746 | /* Flag lines where we might need to replace a single '=' with two; |
39bec121 | 4747 | GAS uses single '=' to assign macro args values, and possibly other |
d0313fb7 | 4748 | places, so limit what we replace. */ |
1aea3bb8 NC |
4749 | if (strstr (line, ".if") |
4750 | || strstr (line, ".elseif") | |
39bec121 | 4751 | || strstr (line, ".break")) |
f1e7a2c9 | 4752 | line_conditional = 1; |
39bec121 | 4753 | |
d0313fb7 NC |
4754 | /* Watch out for .eval, so that we avoid doing substitution on the |
4755 | symbol being assigned a value. */ | |
39bec121 | 4756 | if (strstr (line, ".eval") || strstr (line, ".asg")) |
1aea3bb8 | 4757 | eval_line = 1; |
39bec121 | 4758 | |
9a736b6b NC |
4759 | /* If it's a macro definition, don't do substitution on the argument |
4760 | names. */ | |
39bec121 TW |
4761 | if (strstr (line, ".macro")) |
4762 | return line; | |
4763 | ||
1aea3bb8 | 4764 | while (!is_end_of_line[(int) *ptr]) |
39bec121 TW |
4765 | { |
4766 | int current_char = *ptr; | |
4767 | ||
d0313fb7 | 4768 | /* Need to update this since LINE may have been modified. */ |
39bec121 | 4769 | if (eval_line) |
1aea3bb8 | 4770 | eval_end = strrchr (ptr, ','); |
39bec121 | 4771 | |
d0313fb7 | 4772 | /* Replace triple double quotes with bounding quote/escapes. */ |
39bec121 | 4773 | if (current_char == '"' && ptr[1] == '"' && ptr[2] == '"') |
9a736b6b NC |
4774 | { |
4775 | ptr[1] = '\\'; | |
4776 | tmp = strstr (ptr + 2, "\"\"\""); | |
4777 | if (tmp) | |
4778 | tmp[0] = '\\'; | |
4779 | changed = 1; | |
4780 | } | |
39bec121 | 4781 | |
d0313fb7 | 4782 | /* Replace a single '=' with a '=='; |
9a736b6b | 4783 | for compatibility with older code only. */ |
1aea3bb8 | 4784 | if (line_conditional && current_char == '=') |
9a736b6b NC |
4785 | { |
4786 | if (ptr[1] == '=') | |
4787 | { | |
4788 | ptr += 2; | |
4789 | continue; | |
4790 | } | |
4791 | *ptr++ = '\0'; | |
4792 | tmp = xmalloc (strlen (head) + 2 + strlen (ptr) + 1); | |
4793 | sprintf (tmp, "%s==%s", head, ptr); | |
4794 | /* Continue examining after the '=='. */ | |
4795 | ptr = tmp + strlen (head) + 2; | |
4796 | free (replacement); | |
4797 | head = replacement = tmp; | |
4798 | changed = 1; | |
4799 | } | |
39bec121 | 4800 | |
d0313fb7 | 4801 | /* Flag when we've reached the symbol part of .eval/.asg. */ |
39bec121 | 4802 | if (eval_line && ptr >= eval_end) |
9a736b6b | 4803 | eval_symbol = 1; |
39bec121 | 4804 | |
d0313fb7 | 4805 | /* For each apparent symbol, see if it's a substitution symbol, and if |
9a736b6b | 4806 | so, replace it in the input. */ |
39bec121 | 4807 | if ((forced && current_char == ':') |
9a736b6b NC |
4808 | || (!forced && is_name_beginner (current_char))) |
4809 | { | |
4810 | char *name; /* Symbol to be replaced. */ | |
4811 | char *savedp = input_line_pointer; | |
4812 | int c; | |
4813 | char *value = NULL; | |
4814 | char *tail; /* Rest of line after symbol. */ | |
4815 | ||
4816 | /* Skip the colon. */ | |
4817 | if (forced) | |
4818 | ++ptr; | |
4819 | ||
4820 | name = input_line_pointer = ptr; | |
4821 | c = get_symbol_end (); | |
4822 | /* '?' is not normally part of a symbol, but it IS part of a local | |
4823 | label. */ | |
4824 | if (c == '?') | |
4825 | { | |
4826 | *input_line_pointer++ = c; | |
4827 | c = *input_line_pointer; | |
4828 | *input_line_pointer = '\0'; | |
4829 | } | |
4830 | /* Avoid infinite recursion; if a symbol shows up a second time for | |
4831 | substitution, leave it as is. */ | |
4832 | if (hash_find (subsym_recurse_hash, name) == NULL) | |
4833 | value = subsym_lookup (name, macro_level); | |
4834 | else | |
4835 | as_warn (_("%s symbol recursion stopped at " | |
4836 | "second appearance of '%s'"), | |
4837 | forced ? "Forced substitution" : "Substitution", name); | |
4838 | ptr = tail = input_line_pointer; | |
4839 | input_line_pointer = savedp; | |
4840 | ||
4841 | /* Check for local labels; replace them with the appropriate | |
4842 | substitution. */ | |
3882b010 | 4843 | if ((*name == '$' && ISDIGIT (name[1]) && name[2] == '\0') |
9a736b6b NC |
4844 | || name[strlen (name) - 1] == '?') |
4845 | { | |
4846 | /* Use an existing identifier for that label if, available, or | |
4847 | create a new, unique identifier. */ | |
4848 | value = hash_find (local_label_hash[macro_level], name); | |
4849 | if (value == NULL) | |
4850 | { | |
4851 | char digit[11]; | |
4852 | char *namecopy = strcpy (xmalloc (strlen (name) + 1), name); | |
f1e7a2c9 | 4853 | |
9a736b6b NC |
4854 | value = strcpy (xmalloc (strlen (name) + sizeof (digit) + 1), |
4855 | name); | |
4856 | if (*value != '$') | |
4857 | value[strlen (value) - 1] = '\0'; | |
4858 | sprintf (digit, ".%d", local_label_id++); | |
4859 | strcat (value, digit); | |
4860 | hash_insert (local_label_hash[macro_level], namecopy, value); | |
4861 | } | |
4862 | /* Indicate where to continue looking for substitutions. */ | |
4863 | ptr = tail; | |
4864 | } | |
4865 | /* Check for built-in subsym and math functions. */ | |
4866 | else if (value != NULL && *name == '$') | |
4867 | { | |
4868 | subsym_proc_entry *entry = (subsym_proc_entry *) value; | |
4869 | math_proc_entry *math_entry = hash_find (math_hash, name); | |
4870 | char *arg1, *arg2 = NULL; | |
4871 | ||
4872 | *ptr = c; | |
4873 | if (entry == NULL) | |
4874 | { | |
4875 | as_bad (_("Unrecognized substitution symbol function")); | |
4876 | break; | |
4877 | } | |
4878 | else if (*ptr != '(') | |
4879 | { | |
4880 | as_bad (_("Missing '(' after substitution symbol function")); | |
4881 | break; | |
4882 | } | |
4883 | ++ptr; | |
4884 | if (math_entry != NULL) | |
4885 | { | |
4886 | float arg1, arg2 = 0; | |
4887 | volatile float fresult; | |
4888 | ||
4889 | arg1 = (float) strtod (ptr, &ptr); | |
4890 | if (math_entry->nargs == 2) | |
4891 | { | |
4892 | if (*ptr++ != ',') | |
4893 | { | |
4894 | as_bad (_("Expecting second argument")); | |
4895 | break; | |
4896 | } | |
4897 | arg2 = (float) strtod (ptr, &ptr); | |
4898 | } | |
4899 | fresult = (*math_entry->proc) (arg1, arg2); | |
4900 | value = xmalloc (128); | |
4901 | if (math_entry->int_return) | |
4902 | sprintf (value, "%d", (int) fresult); | |
4903 | else | |
4904 | sprintf (value, "%f", fresult); | |
4905 | if (*ptr++ != ')') | |
4906 | { | |
4907 | as_bad (_("Extra junk in function call, expecting ')'")); | |
4908 | break; | |
4909 | } | |
4910 | /* Don't bother recursing; the replacement isn't a | |
4911 | symbol. */ | |
4912 | recurse = 0; | |
4913 | } | |
4914 | else | |
4915 | { | |
4916 | int val; | |
4917 | int arg_type[2] = { *ptr == '"' , 0 }; | |
4918 | int ismember = !strcmp (entry->name, "$ismember"); | |
f1e7a2c9 | 4919 | |
9a736b6b NC |
4920 | /* Parse one or two args, which must be a substitution |
4921 | symbol, string or a character-string constant. */ | |
4922 | /* For all functions, a string or substitution symbol may be | |
4923 | used, with the following exceptions: | |
4924 | firstch/lastch: 2nd arg must be character constant | |
4925 | ismember: both args must be substitution symbols. */ | |
4926 | ptr = subsym_get_arg (ptr, ",)", &arg1, ismember); | |
4927 | if (!arg1) | |
4928 | break; | |
4929 | if (entry->nargs == 2) | |
4930 | { | |
4931 | if (*ptr++ != ',') | |
4932 | { | |
4933 | as_bad (_("Function expects two arguments")); | |
4934 | break; | |
4935 | } | |
4936 | /* Character constants are converted to numerics | |
4937 | by the preprocessor. */ | |
3882b010 | 4938 | arg_type[1] = (ISDIGIT (*ptr)) ? 2 : (*ptr == '"'); |
9a736b6b NC |
4939 | ptr = subsym_get_arg (ptr, ")", &arg2, ismember); |
4940 | } | |
4941 | /* Args checking. */ | |
4942 | if ((!strcmp (entry->name, "$firstch") | |
4943 | || !strcmp (entry->name, "$lastch")) | |
4944 | && arg_type[1] != 2) | |
4945 | { | |
4946 | as_bad (_("Expecting character constant argument")); | |
4947 | break; | |
4948 | } | |
4949 | if (ismember | |
4950 | && (arg_type[0] != 0 || arg_type[1] != 0)) | |
4951 | { | |
4952 | as_bad (_("Both arguments must be substitution symbols")); | |
4953 | break; | |
4954 | } | |
4955 | if (*ptr++ != ')') | |
4956 | { | |
4957 | as_bad (_("Extra junk in function call, expecting ')'")); | |
4958 | break; | |
4959 | } | |
4960 | val = (*entry->proc) (arg1, arg2); | |
4961 | value = xmalloc (64); | |
4962 | sprintf (value, "%d", val); | |
4963 | } | |
4964 | /* Fix things up to replace the entire expression, not just the | |
4965 | function name. */ | |
4966 | tail = ptr; | |
4967 | c = *tail; | |
4968 | } | |
4969 | ||
4970 | if (value != NULL && !eval_symbol) | |
4971 | { | |
4972 | /* Replace the symbol with its string replacement and | |
4973 | continue. Recursively replace VALUE until either no | |
4974 | substitutions are performed, or a substitution that has been | |
4975 | previously made is encountered again. | |
4976 | ||
4977 | put the symbol into the recursion hash table so we only | |
4978 | try to replace a symbol once. */ | |
4979 | if (recurse) | |
4980 | { | |
4981 | hash_insert (subsym_recurse_hash, name, name); | |
4982 | value = subsym_substitute (value, macro_level > 0); | |
4983 | hash_delete (subsym_recurse_hash, name); | |
4984 | } | |
4985 | ||
4986 | /* Temporarily zero-terminate where the symbol started. */ | |
4987 | *name = 0; | |
4988 | if (forced) | |
4989 | { | |
4990 | if (c == '(') | |
4991 | { | |
4992 | /* Subscripted substitution symbol -- use just the | |
4993 | indicated portion of the string; the description | |
33b7f697 | 4994 | kinda indicates that forced substitution is not |
9a736b6b NC |
4995 | supposed to be recursive, but I'm not sure. */ |
4996 | unsigned beg, len = 1; /* default to a single char */ | |
4997 | char *newval = strcpy (xmalloc (strlen (value) + 1), | |
4998 | value); | |
4999 | ||
5000 | savedp = input_line_pointer; | |
5001 | input_line_pointer = tail + 1; | |
5002 | beg = get_absolute_expression (); | |
5003 | if (beg < 1) | |
5004 | { | |
5005 | as_bad (_("Invalid subscript (use 1 to %d)"), | |
5006 | strlen (value)); | |
5007 | break; | |
5008 | } | |
5009 | if (*input_line_pointer == ',') | |
5010 | { | |
5011 | ++input_line_pointer; | |
5012 | len = get_absolute_expression (); | |
5013 | if (beg + len > strlen (value)) | |
5014 | { | |
5015 | as_bad (_("Invalid length (use 0 to %d"), | |
1aea3bb8 | 5016 | strlen (value) - beg); |
9a736b6b NC |
5017 | break; |
5018 | } | |
5019 | } | |
5020 | newval += beg - 1; | |
5021 | newval[len] = 0; | |
5022 | tail = input_line_pointer; | |
5023 | if (*tail++ != ')') | |
5024 | { | |
5025 | as_bad (_("Missing ')' in subscripted substitution " | |
5026 | "symbol expression")); | |
5027 | break; | |
5028 | } | |
5029 | c = *tail; | |
5030 | input_line_pointer = savedp; | |
5031 | ||
5032 | value = newval; | |
5033 | } | |
5034 | name[-1] = 0; | |
5035 | } | |
5036 | tmp = xmalloc (strlen (head) + strlen (value) + | |
5037 | strlen (tail + 1) + 2); | |
5038 | strcpy (tmp, head); | |
5039 | strcat (tmp, value); | |
5040 | /* Make sure forced substitutions are properly terminated. */ | |
5041 | if (forced) | |
5042 | { | |
5043 | if (c != ':') | |
5044 | { | |
5045 | as_bad (_("Missing forced substitution terminator ':'")); | |
5046 | break; | |
5047 | } | |
5048 | ++tail; | |
9a736b6b NC |
5049 | } |
5050 | else | |
5051 | /* Restore the character after the symbol end. */ | |
5052 | *tail = c; | |
5053 | strcat (tmp, tail); | |
5054 | /* Continue examining after the replacement value. */ | |
5055 | ptr = tmp + strlen (head) + strlen (value); | |
5056 | free (replacement); | |
5057 | head = replacement = tmp; | |
5058 | changed = 1; | |
5059 | } | |
5060 | else | |
5061 | *ptr = c; | |
5062 | } | |
39bec121 | 5063 | else |
9a736b6b NC |
5064 | { |
5065 | ++ptr; | |
5066 | } | |
39bec121 TW |
5067 | } |
5068 | ||
5069 | if (changed) | |
5070 | return replacement; | |
5071 | else | |
5072 | return line; | |
5073 | } | |
5074 | ||
1aea3bb8 | 5075 | /* We use this to handle substitution symbols |
39bec121 TW |
5076 | hijack input_line_pointer, replacing it with our substituted string. |
5077 | ||
5078 | .sslist should enable listing the line after replacements are made... | |
5079 | ||
d0313fb7 | 5080 | returns the new buffer limit. */ |
9a736b6b | 5081 | |
39bec121 TW |
5082 | void |
5083 | tic54x_start_line_hook () | |
5084 | { | |
5085 | char *line, *endp; | |
5086 | char *replacement = NULL; | |
5087 | ||
d0313fb7 | 5088 | /* Work with a copy of the input line, including EOL char. */ |
39bec121 | 5089 | endp = input_line_pointer; |
1aea3bb8 | 5090 | while (!is_end_of_line[(int) *endp++]) |
39bec121 TW |
5091 | ; |
5092 | line = xmalloc (endp - input_line_pointer + 1); | |
5093 | strncpy (line, input_line_pointer, endp - input_line_pointer + 1); | |
5094 | line[endp - input_line_pointer] = 0; | |
5095 | ||
d0313fb7 | 5096 | /* Scan ahead for parallel insns. */ |
39bec121 TW |
5097 | parallel_on_next_line_hint = next_line_shows_parallel (endp + 1); |
5098 | ||
d0313fb7 | 5099 | /* If within a macro, first process forced replacements. */ |
39bec121 TW |
5100 | if (macro_level > 0) |
5101 | replacement = subsym_substitute (line, 1); | |
5102 | else | |
5103 | replacement = line; | |
5104 | replacement = subsym_substitute (replacement, 0); | |
5105 | ||
5106 | if (replacement != line) | |
5107 | { | |
5108 | char *tmp = replacement; | |
9a736b6b | 5109 | char *comment = strchr (replacement, ';'); |
1aea3bb8 | 5110 | char endc = replacement[strlen (replacement) - 1]; |
39bec121 | 5111 | |
d0313fb7 | 5112 | /* Clean up the replacement; we'd prefer to have this done by the |
9a736b6b NC |
5113 | standard preprocessing equipment (maybe do_scrub_chars?) |
5114 | but for now, do a quick-and-dirty. */ | |
39bec121 | 5115 | if (comment != NULL) |
9a736b6b NC |
5116 | { |
5117 | comment[0] = endc; | |
5118 | comment[1] = 0; | |
5119 | --comment; | |
5120 | } | |
1aea3bb8 | 5121 | else |
9a736b6b | 5122 | comment = replacement + strlen (replacement) - 1; |
39bec121 | 5123 | |
d0313fb7 | 5124 | /* Trim trailing whitespace. */ |
3882b010 | 5125 | while (ISSPACE (*comment)) |
9a736b6b NC |
5126 | { |
5127 | comment[0] = endc; | |
5128 | comment[1] = 0; | |
5129 | --comment; | |
5130 | } | |
39bec121 | 5131 | |
d0313fb7 | 5132 | /* Compact leading whitespace. */ |
3882b010 | 5133 | while (ISSPACE (tmp[0]) && ISSPACE (tmp[1])) |
9a736b6b | 5134 | ++tmp; |
39bec121 TW |
5135 | |
5136 | input_line_pointer = endp; | |
5137 | input_scrub_insert_line (tmp); | |
5138 | free (replacement); | |
5139 | free (line); | |
d0313fb7 | 5140 | /* Keep track of whether we've done a substitution. */ |
39bec121 TW |
5141 | substitution_line = 1; |
5142 | } | |
5143 | else | |
5144 | { | |
d0313fb7 | 5145 | /* No change. */ |
39bec121 TW |
5146 | free (line); |
5147 | substitution_line = 0; | |
5148 | } | |
5149 | } | |
5150 | ||
5151 | /* This is the guts of the machine-dependent assembler. STR points to a | |
5152 | machine dependent instruction. This function is supposed to emit | |
d0313fb7 | 5153 | the frags/bytes it assembles to. */ |
39bec121 TW |
5154 | void |
5155 | md_assemble (line) | |
1aea3bb8 | 5156 | char *line; |
39bec121 TW |
5157 | { |
5158 | static int repeat_slot = 0; | |
9a736b6b | 5159 | static int delay_slots = 0; /* How many delay slots left to fill? */ |
39bec121 TW |
5160 | static int is_parallel = 0; |
5161 | static tic54x_insn insn; | |
5162 | char *lptr; | |
5163 | char *savedp = input_line_pointer; | |
5164 | int c; | |
5165 | ||
5166 | input_line_pointer = line; | |
5167 | c = get_symbol_end (); | |
5168 | ||
5169 | if (cpu == VNONE) | |
5170 | cpu = V542; | |
5171 | if (address_mode_needs_set) | |
5172 | { | |
5173 | set_address_mode (amode); | |
5174 | address_mode_needs_set = 0; | |
5175 | } | |
5176 | if (cpu_needs_set) | |
5177 | { | |
5178 | set_cpu (cpu); | |
5179 | cpu_needs_set = 0; | |
5180 | } | |
5181 | assembly_begun = 1; | |
5182 | ||
5183 | if (is_parallel) | |
5184 | { | |
5185 | is_parallel = 0; | |
5186 | ||
5187 | strcpy (insn.parmnemonic, line); | |
5188 | lptr = input_line_pointer; | |
5189 | *lptr = c; | |
5190 | input_line_pointer = savedp; | |
5191 | ||
5192 | if (tic54x_parse_parallel_insn_lastline (&insn, lptr)) | |
9a736b6b NC |
5193 | { |
5194 | int words = build_insn (&insn); | |
5195 | ||
5196 | if (delay_slots != 0) | |
5197 | { | |
5198 | if (words > delay_slots) | |
5199 | { | |
5200 | as_bad (_("Instruction does not fit in available delay " | |
5201 | "slots (%d-word insn, %d slots left)"), | |
1aea3bb8 | 5202 | words, delay_slots); |
9a736b6b NC |
5203 | delay_slots = 0; |
5204 | return; | |
5205 | } | |
5206 | delay_slots -= words; | |
5207 | } | |
5208 | } | |
39bec121 TW |
5209 | return; |
5210 | } | |
5211 | ||
5212 | memset (&insn, 0, sizeof (insn)); | |
5213 | strcpy (insn.mnemonic, line); | |
5214 | lptr = input_line_pointer; | |
5215 | *lptr = c; | |
5216 | input_line_pointer = savedp; | |
1aea3bb8 | 5217 | |
39bec121 TW |
5218 | /* See if this line is part of a parallel instruction; if so, either this |
5219 | line or the next line will have the "||" specifier preceding the | |
d0313fb7 | 5220 | mnemonic, and we look for it in the parallel insn hash table. */ |
39bec121 TW |
5221 | if (strstr (line, "||") != NULL || parallel_on_next_line_hint) |
5222 | { | |
5223 | char *tmp = strstr (line, "||"); | |
5224 | if (tmp != NULL) | |
9a736b6b | 5225 | *tmp = '\0'; |
39bec121 TW |
5226 | |
5227 | if (tic54x_parse_parallel_insn_firstline (&insn, lptr)) | |
9a736b6b NC |
5228 | { |
5229 | is_parallel = 1; | |
5230 | /* If the parallel part is on the same line, process it now, | |
5231 | otherwise let the assembler pick up the next line for us. */ | |
5232 | if (tmp != NULL) | |
5233 | { | |
3882b010 | 5234 | while (ISSPACE (tmp[2])) |
9a736b6b NC |
5235 | ++tmp; |
5236 | md_assemble (tmp + 2); | |
5237 | } | |
5238 | } | |
39bec121 | 5239 | else |
9a736b6b NC |
5240 | { |
5241 | as_bad (_("Unrecognized parallel instruction '%s'"), line); | |
5242 | } | |
39bec121 TW |
5243 | return; |
5244 | } | |
5245 | ||
5246 | if (tic54x_parse_insn (&insn, lptr)) | |
5247 | { | |
5248 | int words; | |
5249 | ||
1aea3bb8 | 5250 | if ((insn.tm->flags & FL_LP) |
9a736b6b NC |
5251 | && cpu != V545LP && cpu != V546LP) |
5252 | { | |
5253 | as_bad (_("Instruction '%s' requires an LP cpu version"), | |
5254 | insn.tm->name); | |
5255 | return; | |
5256 | } | |
1aea3bb8 | 5257 | if ((insn.tm->flags & FL_FAR) |
9a736b6b NC |
5258 | && amode != far_mode) |
5259 | { | |
5260 | as_bad (_("Instruction '%s' requires far mode addressing"), | |
5261 | insn.tm->name); | |
5262 | return; | |
5263 | } | |
39bec121 TW |
5264 | |
5265 | words = build_insn (&insn); | |
5266 | ||
d0313fb7 | 5267 | /* Is this instruction in a delay slot? */ |
39bec121 | 5268 | if (delay_slots) |
9a736b6b NC |
5269 | { |
5270 | if (words > delay_slots) | |
5271 | { | |
5272 | as_warn (_("Instruction does not fit in available delay " | |
5273 | "slots (%d-word insn, %d slots left). " | |
5274 | "Resulting behavior is undefined."), | |
5275 | words, delay_slots); | |
5276 | delay_slots = 0; | |
5277 | return; | |
5278 | } | |
5279 | /* Branches in delay slots are not allowed. */ | |
5280 | if (insn.tm->flags & FL_BMASK) | |
5281 | { | |
5282 | as_warn (_("Instructions which cause PC discontinuity are not " | |
5283 | "allowed in a delay slot. " | |
5284 | "Resulting behavior is undefined.")); | |
5285 | } | |
5286 | delay_slots -= words; | |
5287 | } | |
5288 | ||
5289 | /* Is this instruction the target of a repeat? */ | |
39bec121 | 5290 | if (repeat_slot) |
9a736b6b NC |
5291 | { |
5292 | if (insn.tm->flags & FL_NR) | |
5293 | as_warn (_("'%s' is not repeatable. " | |
5294 | "Resulting behavior is undefined."), | |
5295 | insn.tm->name); | |
5296 | else if (insn.is_lkaddr) | |
5297 | as_warn (_("Instructions using long offset modifiers or absolute " | |
5298 | "addresses are not repeatable. " | |
5299 | "Resulting behavior is undefined.")); | |
5300 | repeat_slot = 0; | |
5301 | } | |
1aea3bb8 | 5302 | |
d0313fb7 | 5303 | /* Make sure we check the target of a repeat instruction. */ |
39bec121 | 5304 | if (insn.tm->flags & B_REPEAT) |
9a736b6b NC |
5305 | { |
5306 | repeat_slot = 1; | |
5307 | /* FIXME -- warn if repeat_slot == 1 at EOF. */ | |
5308 | } | |
d0313fb7 | 5309 | /* Make sure we check our delay slots for validity. */ |
39bec121 | 5310 | if (insn.tm->flags & FL_DELAY) |
9a736b6b NC |
5311 | { |
5312 | delay_slots = 2; | |
5313 | /* FIXME -- warn if delay_slots != 0 at EOF. */ | |
5314 | } | |
39bec121 TW |
5315 | } |
5316 | } | |
5317 | ||
5318 | /* Do a final adjustment on the symbol table; in this case, make sure we have | |
d0313fb7 | 5319 | a ".file" symbol. */ |
9a736b6b | 5320 | |
39bec121 TW |
5321 | void |
5322 | tic54x_adjust_symtab () | |
5323 | { | |
5324 | if (symbol_rootP == NULL | |
5325 | || S_GET_STORAGE_CLASS (symbol_rootP) != C_FILE) | |
5326 | { | |
5327 | char *filename; | |
5328 | unsigned lineno; | |
5329 | as_where (&filename, &lineno); | |
5519f6ea | 5330 | c_dot_file_symbol (filename, 0); |
39bec121 TW |
5331 | } |
5332 | } | |
5333 | ||
5334 | /* In order to get gas to ignore any | chars at the start of a line, | |
1aea3bb8 | 5335 | this function returns true if a | is found in a line. |
9a736b6b NC |
5336 | This lets us process parallel instructions, which span two lines. */ |
5337 | ||
39bec121 TW |
5338 | int |
5339 | tic54x_unrecognized_line (int c) | |
5340 | { | |
5341 | return c == PARALLEL_SEPARATOR; | |
5342 | } | |
5343 | ||
5344 | /* Watch for local labels of the form $[0-9] and [_a-zA-Z][_a-zA-Z0-9]*? | |
5345 | Encode their names so that only we see them and can map them to the | |
5346 | appropriate places. | |
5347 | FIXME -- obviously this isn't done yet. These locals still show up in the | |
d0313fb7 | 5348 | symbol table. */ |
39bec121 | 5349 | void |
d0313fb7 NC |
5350 | tic54x_define_label (sym) |
5351 | symbolS *sym; | |
39bec121 | 5352 | { |
d0313fb7 | 5353 | /* Just in case we need this later; note that this is not necessarily the |
1aea3bb8 | 5354 | same thing as line_label... |
39bec121 TW |
5355 | When aligning or assigning labels to fields, sometimes the label is |
5356 | assigned other than the address at which the label appears. | |
5357 | FIXME -- is this really needed? I think all the proper label assignment | |
d0313fb7 | 5358 | is done in tic54x_cons. */ |
39bec121 TW |
5359 | last_label_seen = sym; |
5360 | } | |
5361 | ||
d0313fb7 | 5362 | /* Try to parse something that normal parsing failed at. */ |
9a736b6b | 5363 | |
39bec121 TW |
5364 | symbolS * |
5365 | tic54x_undefined_symbol (name) | |
5366 | char *name; | |
5367 | { | |
5368 | symbol *sym; | |
5369 | ||
d0313fb7 | 5370 | /* Not sure how to handle predefined symbols. */ |
1aea3bb8 NC |
5371 | if ((sym = (symbol *) hash_find (cc_hash, name)) != NULL || |
5372 | (sym = (symbol *) hash_find (cc2_hash, name)) != NULL || | |
5373 | (sym = (symbol *) hash_find (cc3_hash, name)) != NULL || | |
5374 | (sym = (symbol *) hash_find (misc_symbol_hash, name)) != NULL || | |
5375 | (sym = (symbol *) hash_find (sbit_hash, name)) != NULL) | |
39bec121 | 5376 | { |
1aea3bb8 | 5377 | return symbol_new (name, reg_section, |
9a736b6b NC |
5378 | (valueT) sym->value, |
5379 | &zero_address_frag); | |
39bec121 TW |
5380 | } |
5381 | ||
1aea3bb8 NC |
5382 | if ((sym = (symbol *) hash_find (reg_hash, name)) != NULL || |
5383 | (sym = (symbol *) hash_find (mmreg_hash, name)) != NULL || | |
39bec121 TW |
5384 | !strcasecmp (name, "a") || !strcasecmp (name, "b")) |
5385 | { | |
1aea3bb8 | 5386 | return symbol_new (name, reg_section, |
9a736b6b NC |
5387 | (valueT) sym ? sym->value : 0, |
5388 | &zero_address_frag); | |
39bec121 TW |
5389 | } |
5390 | ||
5391 | return NULL; | |
5392 | } | |
5393 | ||
d0313fb7 NC |
5394 | /* Parse a name in an expression before the expression parser takes a stab at |
5395 | it. */ | |
9a736b6b | 5396 | |
39bec121 TW |
5397 | int |
5398 | tic54x_parse_name (name, exp) | |
5399 | char *name ATTRIBUTE_UNUSED; | |
5400 | expressionS *exp ATTRIBUTE_UNUSED; | |
5401 | { | |
39bec121 TW |
5402 | return 0; |
5403 | } | |
5404 | ||
5405 | char * | |
5406 | md_atof (type, literalP, sizeP) | |
5407 | int type; | |
5408 | char *literalP; | |
5409 | int *sizeP; | |
5410 | { | |
5411 | #define MAX_LITTLENUMS 2 | |
5412 | LITTLENUM_TYPE words[MAX_LITTLENUMS]; | |
5413 | LITTLENUM_TYPE *word; | |
9a736b6b | 5414 | /* Only one precision on the c54x. */ |
39bec121 TW |
5415 | int prec = 2; |
5416 | char *t = atof_ieee (input_line_pointer, type, words); | |
5417 | if (t) | |
5418 | input_line_pointer = t; | |
5419 | *sizeP = 4; | |
5420 | ||
1aea3bb8 NC |
5421 | /* Target data is little-endian, but floats are stored |
5422 | big-"word"ian. ugh. */ | |
39bec121 TW |
5423 | for (word = words; prec--;) |
5424 | { | |
1aea3bb8 | 5425 | md_number_to_chars (literalP, (long) (*word++), sizeof (LITTLENUM_TYPE)); |
39bec121 TW |
5426 | literalP += sizeof (LITTLENUM_TYPE); |
5427 | } | |
5428 | ||
5429 | return 0; | |
5430 | } | |
5431 | ||
5432 | arelent * | |
5433 | tc_gen_reloc (section, fixP) | |
5434 | asection *section; | |
5435 | fixS *fixP; | |
5436 | { | |
5437 | arelent *rel; | |
5438 | bfd_reloc_code_real_type code = fixP->fx_r_type; | |
5439 | asymbol *sym = symbol_get_bfdsym (fixP->fx_addsy); | |
5440 | ||
5441 | rel = (arelent *) xmalloc (sizeof (arelent)); | |
1aea3bb8 | 5442 | rel->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); |
39bec121 | 5443 | *rel->sym_ptr_ptr = sym; |
9a736b6b | 5444 | /* We assume that all rel->address are host byte offsets. */ |
39bec121 TW |
5445 | rel->address = fixP->fx_frag->fr_address + fixP->fx_where; |
5446 | rel->address /= OCTETS_PER_BYTE; | |
5447 | rel->howto = bfd_reloc_type_lookup (stdoutput, code); | |
5448 | if (!strcmp (sym->name, section->name)) | |
5449 | rel->howto += HOWTO_BANK; | |
5450 | ||
5451 | if (!rel->howto) | |
5452 | { | |
5453 | const char *name = S_GET_NAME (fixP->fx_addsy); | |
5454 | if (name == NULL) | |
5455 | name = "<unknown>"; | |
1aea3bb8 | 5456 | as_fatal ("Cannot generate relocation type for symbol %s, code %s", |
9a736b6b | 5457 | name, bfd_get_reloc_code_name (code)); |
39bec121 TW |
5458 | return NULL; |
5459 | } | |
5460 | return rel; | |
5461 | } | |
5462 | ||
d0313fb7 | 5463 | /* Handle cons expressions. */ |
9a736b6b | 5464 | |
39bec121 | 5465 | void |
f1e7a2c9 NC |
5466 | tic54x_cons_fix_new (frag, where, octets, exp) |
5467 | fragS *frag; | |
5468 | int where; | |
5469 | int octets; | |
5470 | expressionS *exp; | |
39bec121 TW |
5471 | { |
5472 | bfd_reloc_code_real_type r; | |
f1e7a2c9 | 5473 | |
39bec121 TW |
5474 | switch (octets) |
5475 | { | |
5476 | default: | |
5477 | as_bad (_("Unsupported relocation size %d"), octets); | |
5478 | r = BFD_RELOC_TIC54X_16_OF_23; | |
5479 | break; | |
5480 | case 2: | |
5481 | r = BFD_RELOC_TIC54X_16_OF_23; | |
5482 | break; | |
5483 | case 4: | |
d0313fb7 | 5484 | /* TI assembler always uses this, regardless of addressing mode. */ |
39bec121 | 5485 | if (emitting_long) |
9a736b6b | 5486 | r = BFD_RELOC_TIC54X_23; |
39bec121 | 5487 | else |
9a736b6b NC |
5488 | /* We never want to directly generate this; this is provided for |
5489 | stabs support only. */ | |
5490 | r = BFD_RELOC_32; | |
39bec121 TW |
5491 | break; |
5492 | } | |
5493 | fix_new_exp (frag, where, octets, exp, 0, r); | |
5494 | } | |
5495 | ||
1aea3bb8 | 5496 | /* Attempt to simplify or even eliminate a fixup. |
39bec121 TW |
5497 | To indicate that a fixup has been eliminated, set fixP->fx_done. |
5498 | ||
d0313fb7 | 5499 | If fixp->fx_addsy is non-NULL, we'll have to generate a reloc entry. */ |
9a736b6b | 5500 | |
94f592af NC |
5501 | void |
5502 | md_apply_fix3 (fixP, valP, seg) | |
39bec121 | 5503 | fixS *fixP; |
94f592af NC |
5504 | valueT * valP; |
5505 | segT seg ATTRIBUTE_UNUSED; | |
39bec121 TW |
5506 | { |
5507 | char *buf = fixP->fx_where + fixP->fx_frag->fr_literal; | |
94f592af | 5508 | valueT val = * valP; |
39bec121 TW |
5509 | |
5510 | switch (fixP->fx_r_type) | |
5511 | { | |
5512 | default: | |
5513 | as_fatal ("Bad relocation type: 0x%02x", fixP->fx_r_type); | |
94f592af | 5514 | return; |
39bec121 TW |
5515 | case BFD_RELOC_TIC54X_MS7_OF_23: |
5516 | val = (val >> 16) & 0x7F; | |
d0313fb7 | 5517 | /* Fall through. */ |
39bec121 TW |
5518 | case BFD_RELOC_TIC54X_16_OF_23: |
5519 | case BFD_RELOC_16: | |
5520 | bfd_put_16 (stdoutput, val, buf); | |
d0313fb7 | 5521 | /* Indicate what we're actually writing, so that we don't get warnings |
9a736b6b | 5522 | about exceeding available space. */ |
39bec121 TW |
5523 | *valP = val & 0xFFFF; |
5524 | break; | |
5525 | case BFD_RELOC_TIC54X_PARTLS7: | |
5526 | bfd_put_16 (stdoutput, | |
9a736b6b NC |
5527 | (bfd_get_16 (stdoutput, buf) & 0xFF80) | (val & 0x7F), |
5528 | buf); | |
d0313fb7 | 5529 | /* Indicate what we're actually writing, so that we don't get warnings |
9a736b6b | 5530 | about exceeding available space. */ |
39bec121 TW |
5531 | *valP = val & 0x7F; |
5532 | break; | |
5533 | case BFD_RELOC_TIC54X_PARTMS9: | |
5534 | /* TI assembler doesn't shift its encoding for relocatable files, and is | |
9a736b6b | 5535 | thus incompatible with this implementation's relocatable files. */ |
1aea3bb8 | 5536 | bfd_put_16 (stdoutput, |
9a736b6b NC |
5537 | (bfd_get_16 (stdoutput, buf) & 0xFE00) | (val >> 7), |
5538 | buf); | |
39bec121 TW |
5539 | break; |
5540 | case BFD_RELOC_32: | |
5541 | case BFD_RELOC_TIC54X_23: | |
5542 | bfd_put_32 (stdoutput, | |
9a736b6b NC |
5543 | (bfd_get_32 (stdoutput, buf) & 0xFF800000) | val, |
5544 | buf); | |
39bec121 TW |
5545 | break; |
5546 | } | |
5547 | ||
94f592af NC |
5548 | if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0) |
5549 | fixP->fx_done = 1; | |
39bec121 TW |
5550 | } |
5551 | ||
1aea3bb8 | 5552 | /* This is our chance to record section alignment |
d0313fb7 | 5553 | don't need to do anything here, since BFD does the proper encoding. */ |
9a736b6b | 5554 | |
39bec121 TW |
5555 | valueT |
5556 | md_section_align (segment, section_size) | |
5557 | segT segment ATTRIBUTE_UNUSED; | |
5558 | valueT section_size; | |
5559 | { | |
5560 | return section_size; | |
5561 | } | |
5562 | ||
5563 | long | |
5564 | md_pcrel_from (fixP) | |
5565 | fixS *fixP ATTRIBUTE_UNUSED; | |
5566 | { | |
5567 | return 0; | |
5568 | } | |
5569 | ||
5570 | #if defined OBJ_COFF | |
5571 | ||
5572 | short | |
5573 | tc_coff_fix2rtype (fixP) | |
5574 | fixS *fixP; | |
5575 | { | |
5576 | return (fixP->fx_r_type); | |
5577 | } | |
5578 | ||
9a736b6b NC |
5579 | #endif /* OBJ_COFF */ |
5580 | ||
5581 | /* Mostly little-endian, but longwords (4 octets) get MS word stored | |
5582 | first. */ | |
39bec121 | 5583 | |
39bec121 TW |
5584 | void |
5585 | tic54x_number_to_chars (buf, val, n) | |
9a736b6b NC |
5586 | char *buf; |
5587 | valueT val; | |
5588 | int n; | |
39bec121 TW |
5589 | { |
5590 | if (n != 4) | |
9a736b6b | 5591 | number_to_chars_littleendian (buf, val, n); |
39bec121 TW |
5592 | else |
5593 | { | |
1aea3bb8 NC |
5594 | number_to_chars_littleendian (buf , val >> 16 , 2); |
5595 | number_to_chars_littleendian (buf + 2, val & 0xFFFF, 2); | |
39bec121 TW |
5596 | } |
5597 | } | |
5598 | ||
1aea3bb8 | 5599 | int |
39bec121 | 5600 | tic54x_estimate_size_before_relax (frag, seg) |
9a736b6b NC |
5601 | fragS *frag ATTRIBUTE_UNUSED; |
5602 | segT seg ATTRIBUTE_UNUSED; | |
39bec121 TW |
5603 | { |
5604 | return 0; | |
5605 | } | |
5606 | ||
d0313fb7 NC |
5607 | /* We use this to handle bit allocations which we couldn't handle before due |
5608 | to symbols being in different frags. return number of octets added. */ | |
9a736b6b | 5609 | |
1aea3bb8 | 5610 | int |
39bec121 | 5611 | tic54x_relax_frag (frag, stretch) |
1aea3bb8 NC |
5612 | fragS *frag; |
5613 | long stretch ATTRIBUTE_UNUSED; | |
39bec121 TW |
5614 | { |
5615 | symbolS *sym = frag->fr_symbol; | |
5616 | int growth = 0; | |
5617 | int i; | |
5618 | ||
5619 | if (sym != NULL) | |
5620 | { | |
1aea3bb8 | 5621 | struct bit_info *bi = (struct bit_info *) frag->fr_opcode; |
39bec121 TW |
5622 | int bit_offset = frag_bit_offset (frag_prev (frag, bi->seg), bi->seg); |
5623 | int size = S_GET_VALUE (sym); | |
5624 | fragS *prev_frag = bit_offset_frag (frag_prev (frag, bi->seg), bi->seg); | |
5625 | int available = 16 - bit_offset; | |
5626 | ||
5627 | if (symbol_get_frag (sym) != &zero_address_frag | |
9a736b6b NC |
5628 | || S_IS_COMMON (sym) |
5629 | || !S_IS_DEFINED (sym)) | |
5630 | as_bad_where (frag->fr_file, frag->fr_line, | |
5631 | _("non-absolute value used with .space/.bes")); | |
39bec121 TW |
5632 | |
5633 | if (size < 0) | |
9a736b6b NC |
5634 | { |
5635 | as_warn (_("negative value ignored in %s"), | |
5636 | bi->type == TYPE_SPACE ? ".space" : | |
5637 | bi->type == TYPE_BES ? ".bes" : ".field"); | |
5638 | growth = 0; | |
5639 | frag->tc_frag_data = frag->fr_fix = 0; | |
5640 | return 0; | |
5641 | } | |
39bec121 TW |
5642 | |
5643 | if (bi->type == TYPE_FIELD) | |
9a736b6b NC |
5644 | { |
5645 | /* Bit fields of 16 or larger will have already been handled. */ | |
5646 | if (bit_offset != 0 && available >= size) | |
5647 | { | |
5648 | char *p = prev_frag->fr_literal; | |
f1e7a2c9 | 5649 | |
9a736b6b NC |
5650 | valueT value = bi->value; |
5651 | value <<= available - size; | |
5652 | value |= ((unsigned short) p[1] << 8) | p[0]; | |
5653 | md_number_to_chars (p, value, 2); | |
5654 | if ((prev_frag->tc_frag_data += size) == 16) | |
5655 | prev_frag->tc_frag_data = 0; | |
5656 | if (bi->sym) | |
5657 | symbol_set_frag (bi->sym, prev_frag); | |
5658 | /* This frag is no longer used. */ | |
5659 | growth = -frag->fr_fix; | |
5660 | frag->fr_fix = 0; | |
5661 | frag->tc_frag_data = 0; | |
5662 | } | |
5663 | else | |
5664 | { | |
5665 | char *p = frag->fr_literal; | |
f1e7a2c9 | 5666 | |
9a736b6b NC |
5667 | valueT value = bi->value << (16 - size); |
5668 | md_number_to_chars (p, value, 2); | |
5669 | if ((frag->tc_frag_data = size) == 16) | |
5670 | frag->tc_frag_data = 0; | |
5671 | growth = 0; | |
5672 | } | |
5673 | } | |
39bec121 | 5674 | else |
9a736b6b NC |
5675 | { |
5676 | if (bit_offset != 0 && bit_offset < 16) | |
5677 | { | |
5678 | if (available >= size) | |
5679 | { | |
5680 | if ((prev_frag->tc_frag_data += size) == 16) | |
5681 | prev_frag->tc_frag_data = 0; | |
5682 | if (bi->sym) | |
5683 | symbol_set_frag (bi->sym, prev_frag); | |
5684 | /* This frag is no longer used. */ | |
5685 | growth = -frag->fr_fix; | |
5686 | frag->fr_fix = 0; | |
5687 | frag->tc_frag_data = 0; | |
5688 | goto getout; | |
5689 | } | |
5690 | if (bi->type == TYPE_SPACE && bi->sym) | |
5691 | symbol_set_frag (bi->sym, prev_frag); | |
5692 | size -= available; | |
5693 | } | |
5694 | growth = (size + 15) / 16 * OCTETS_PER_BYTE - frag->fr_fix; | |
5695 | for (i = 0; i < growth; i++) | |
5696 | frag->fr_literal[i] = 0; | |
5697 | frag->fr_fix = growth; | |
5698 | frag->tc_frag_data = size % 16; | |
5699 | /* Make sure any BES label points to the LAST word allocated. */ | |
5700 | if (bi->type == TYPE_BES && bi->sym) | |
5701 | S_SET_VALUE (bi->sym, frag->fr_fix / OCTETS_PER_BYTE - 1); | |
5702 | } | |
39bec121 TW |
5703 | getout: |
5704 | frag->fr_symbol = 0; | |
5705 | frag->fr_opcode = 0; | |
1aea3bb8 | 5706 | free ((void *) bi); |
39bec121 TW |
5707 | } |
5708 | return growth; | |
5709 | } | |
5710 | ||
5711 | void | |
5712 | tic54x_convert_frag (abfd, seg, frag) | |
1aea3bb8 NC |
5713 | bfd *abfd ATTRIBUTE_UNUSED; |
5714 | segT seg ATTRIBUTE_UNUSED; | |
5715 | fragS *frag; | |
39bec121 | 5716 | { |
d0313fb7 | 5717 | /* Offset is in bytes. */ |
1aea3bb8 | 5718 | frag->fr_offset = (frag->fr_next->fr_address |
9a736b6b NC |
5719 | - frag->fr_address |
5720 | - frag->fr_fix) / frag->fr_var; | |
39bec121 TW |
5721 | if (frag->fr_offset < 0) |
5722 | { | |
5723 | as_bad_where (frag->fr_file, frag->fr_line, | |
9a736b6b NC |
5724 | _("attempt to .space/.bes backwards? (%ld)"), |
5725 | (long) frag->fr_offset); | |
39bec121 TW |
5726 | } |
5727 | frag->fr_type = rs_space; | |
5728 | } | |
5729 | ||
d0313fb7 | 5730 | /* We need to avoid having labels defined for certain directives/pseudo-ops |
39bec121 TW |
5731 | since once the label is defined, it's in the symbol table for good. TI |
5732 | syntax puts the symbol *before* the pseudo (which is kinda like MRI syntax, | |
5733 | I guess, except I've never seen a definition of MRI syntax). | |
5734 | ||
5735 | C is the character that used to be at *REST, which points to the end of the | |
1aea3bb8 | 5736 | label. |
39bec121 | 5737 | |
d0313fb7 | 5738 | Don't allow labels to start with '.' */ |
9a736b6b | 5739 | |
39bec121 TW |
5740 | int |
5741 | tic54x_start_label (c, rest) | |
1aea3bb8 NC |
5742 | int c; |
5743 | char *rest; | |
39bec121 | 5744 | { |
d0313fb7 | 5745 | /* If within .struct/.union, no auto line labels, please. */ |
39bec121 TW |
5746 | if (current_stag != NULL) |
5747 | return 0; | |
5748 | ||
d0313fb7 | 5749 | /* Disallow labels starting with "." */ |
39bec121 TW |
5750 | if (c != ':') |
5751 | { | |
5752 | char *label = rest; | |
f1e7a2c9 | 5753 | |
1aea3bb8 | 5754 | while (!is_end_of_line[(int) label[-1]]) |
9a736b6b | 5755 | --label; |
39bec121 | 5756 | if (*label == '.') |
9a736b6b NC |
5757 | { |
5758 | as_bad (_("Invalid label '%s'"), label); | |
5759 | return 0; | |
5760 | } | |
39bec121 TW |
5761 | } |
5762 | ||
1aea3bb8 | 5763 | if (is_end_of_line[(int) c]) |
39bec121 TW |
5764 | return 1; |
5765 | ||
3882b010 L |
5766 | if (ISSPACE (c)) |
5767 | while (ISSPACE (c = *++rest)) | |
39bec121 TW |
5768 | ; |
5769 | if (c == '.') | |
5770 | { | |
d0313fb7 | 5771 | /* Don't let colon () define a label for any of these... */ |
3882b010 L |
5772 | return (strncasecmp (rest, ".tag", 4) != 0 || !ISSPACE (rest[4])) |
5773 | && (strncasecmp (rest, ".struct", 7) != 0 || !ISSPACE (rest[7])) | |
5774 | && (strncasecmp (rest, ".union", 6) != 0 || !ISSPACE (rest[6])) | |
5775 | && (strncasecmp (rest, ".macro", 6) != 0 || !ISSPACE (rest[6])) | |
5776 | && (strncasecmp (rest, ".set", 4) != 0 || !ISSPACE (rest[4])) | |
5777 | && (strncasecmp (rest, ".equ", 4) != 0 || !ISSPACE (rest[4])); | |
39bec121 TW |
5778 | } |
5779 | ||
5780 | return 1; | |
5781 | } |