Commit | Line | Data |
---|---|---|
39bec121 | 1 | /* tc-tic54x.c -- Assembly code for the Texas Instruments TMS320C54X |
8ad7c533 | 2 | Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 |
aef6203b | 3 | Free Software Foundation, Inc. |
39bec121 TW |
4 | Contributed by Timothy Wall (twall@cygnus.com) |
5 | ||
6 | This file is part of GAS, the GNU Assembler. | |
7 | ||
8 | GAS is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2, or (at your option) | |
11 | any later version. | |
12 | ||
13 | GAS is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GAS; see the file COPYING. If not, write to the Free | |
4b4da160 NC |
20 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
21 | 02110-1301, USA. */ | |
39bec121 | 22 | |
d0313fb7 | 23 | /* Texas Instruments TMS320C54X machine specific gas. |
39bec121 TW |
24 | Written by Timothy Wall (twall@alum.mit.edu). |
25 | ||
26 | Valuable things to do: | |
27 | Pipeline conflict warnings | |
28 | We encode/decode "ld #_label, dp" differently in relocatable files | |
29 | This means we're not compatible with TI output containing those | |
30 | expressions. We store the upper nine bits; TI stores the lower nine | |
31 | bits. How they recover the original upper nine bits is beyond me. | |
32 | ||
33 | Tests to add to expect testsuite: | |
34 | '=' and '==' with .if, .elseif, and .break | |
35 | ||
36 | Incompatibilities (mostly trivial): | |
37 | We don't allow ''' | |
38 | We fill text section with zeroes instead of "nop"s | |
39 | We don't convert '' or "" to a single instance | |
40 | We don't convert '' to '\0' | |
41 | We don't allow strings with .byte/.half/.short/.long | |
42 | Probably details of the subsym stuff are different | |
6e917903 TW |
43 | TI sets labels to be data type 4 (T_INT); GAS uses T_NULL. |
44 | ||
45 | COFF1 limits section names to 8 characters. | |
f1e7a2c9 | 46 | Some of the default behavior changed from COFF1 to COFF2. */ |
39bec121 | 47 | |
39bec121 | 48 | #include <limits.h> |
39bec121 | 49 | #include "as.h" |
3882b010 | 50 | #include "safe-ctype.h" |
39bec121 TW |
51 | #include "sb.h" |
52 | #include "macro.h" | |
53 | #include "subsegs.h" | |
54 | #include "struc-symbol.h" | |
55 | #include "opcode/tic54x.h" | |
56 | #include "obj-coff.h" | |
57 | #include <math.h> | |
58 | ||
39bec121 | 59 | |
f1e7a2c9 NC |
60 | static struct stag |
61 | { | |
62 | symbolS *sym; /* Symbol for this stag; value is offset. */ | |
63 | const char *name; /* Shortcut to symbol name. */ | |
64 | bfd_vma size; /* Size of struct/union. */ | |
65 | int current_bitfield_offset; /* Temporary for tracking fields. */ | |
66 | int is_union; | |
67 | struct stag_field /* List of fields. */ | |
68 | { | |
69 | const char *name; | |
70 | bfd_vma offset; /* Of start of this field. */ | |
71 | int bitfield_offset; /* Of start of this field. */ | |
72 | struct stag *stag; /* If field is struct/union. */ | |
73 | struct stag_field *next; | |
74 | } *field; | |
75 | /* For nesting; used only in stag construction. */ | |
76 | struct stag *inner; /* Enclosed .struct. */ | |
77 | struct stag *outer; /* Enclosing .struct. */ | |
78 | } *current_stag = NULL; | |
39bec121 | 79 | |
f1e7a2c9 | 80 | #define MAX_LINE 256 /* Lines longer than this are truncated by TI's asm. */ |
9a736b6b | 81 | |
f1e7a2c9 NC |
82 | typedef struct _tic54x_insn |
83 | { | |
84 | const template *tm; /* Opcode template. */ | |
39bec121 | 85 | |
f1e7a2c9 NC |
86 | char mnemonic[MAX_LINE]; /* Opcode name/mnemonic. */ |
87 | char parmnemonic[MAX_LINE]; /* 2nd mnemonic of parallel insn. */ | |
39bec121 | 88 | |
f1e7a2c9 NC |
89 | int opcount; |
90 | struct opstruct | |
91 | { | |
92 | char buf[MAX_LINE]; | |
93 | enum optype type; | |
94 | expressionS exp; | |
95 | } operands[MAX_OPERANDS]; | |
39bec121 | 96 | |
f1e7a2c9 NC |
97 | int paropcount; |
98 | struct opstruct paroperands[MAX_OPERANDS]; | |
99 | ||
100 | int is_lkaddr; | |
101 | int lkoperand; | |
102 | int words; /* Size of insn in 16-bit words. */ | |
103 | int using_default_dst; /* Do we need to explicitly set an | |
104 | omitted OP_DST operand? */ | |
105 | struct | |
106 | { | |
107 | unsigned short word; /* Final encoded opcode data. */ | |
108 | int unresolved; | |
109 | int r_nchars; /* Relocation size. */ | |
110 | bfd_reloc_code_real_type r_type; /* Relocation type. */ | |
111 | expressionS addr_expr; /* Storage for unresolved expressions. */ | |
112 | } opcode[3]; | |
113 | } tic54x_insn; | |
d0313fb7 NC |
114 | |
115 | enum cpu_version | |
116 | { | |
39bec121 TW |
117 | VNONE = 0, V541 = 1, V542 = 2, V543 = 3, V545 = 5, V548 = 8, V549 = 9, |
118 | V545LP = 15, V546LP = 16 | |
119 | }; | |
120 | ||
d0313fb7 NC |
121 | enum address_mode |
122 | { | |
9a736b6b NC |
123 | c_mode, /* 16-bit addresses. */ |
124 | far_mode /* >16-bit addresses. */ | |
39bec121 TW |
125 | }; |
126 | ||
f1e7a2c9 NC |
127 | static segT stag_saved_seg; |
128 | static subsegT stag_saved_subseg; | |
129 | ||
130 | const char comment_chars[] = ";"; | |
131 | const char line_comment_chars[] = ";*#"; /* At column zero only. */ | |
132 | const char line_separator_chars[] = ""; /* Not permitted. */ | |
133 | ||
134 | int emitting_long = 0; | |
135 | ||
136 | /* Characters which indicate that this is a floating point constant. */ | |
137 | const char FLT_CHARS[] = "fF"; | |
138 | ||
139 | /* Characters that can be used to separate mantissa from exp in FP | |
140 | nums. */ | |
141 | const char EXP_CHARS[] = "eE"; | |
142 | ||
143 | const char *md_shortopts = ""; | |
144 | ||
39bec121 | 145 | #define OPTION_ADDRESS_MODE (OPTION_MD_BASE) |
1aea3bb8 NC |
146 | #define OPTION_CPU_VERSION (OPTION_ADDRESS_MODE + 1) |
147 | #define OPTION_COFF_VERSION (OPTION_CPU_VERSION + 1) | |
148 | #define OPTION_STDERR_TO_FILE (OPTION_COFF_VERSION + 1) | |
39bec121 | 149 | |
1aea3bb8 | 150 | struct option md_longopts[] = |
39bec121 | 151 | { |
f1e7a2c9 NC |
152 | { "mfar-mode", no_argument, NULL, OPTION_ADDRESS_MODE }, |
153 | { "mf", no_argument, NULL, OPTION_ADDRESS_MODE }, | |
154 | { "mcpu", required_argument, NULL, OPTION_CPU_VERSION }, | |
39bec121 | 155 | { "merrors-to-file", required_argument, NULL, OPTION_STDERR_TO_FILE }, |
f1e7a2c9 NC |
156 | { "me", required_argument, NULL, OPTION_STDERR_TO_FILE }, |
157 | { NULL, no_argument, NULL, 0}, | |
39bec121 TW |
158 | }; |
159 | ||
160 | size_t md_longopts_size = sizeof (md_longopts); | |
161 | ||
d0313fb7 | 162 | static int assembly_begun = 0; |
39bec121 TW |
163 | /* Addressing mode is not entirely implemented; the latest rev of the Other |
164 | assembler doesn't seem to make any distinction whatsoever; all relocations | |
165 | are stored as extended relocatiosn. Older versions used REL16 vs RELEXT16, | |
166 | but now it seems all relocations are RELEXT16. We use all RELEXT16. | |
167 | ||
168 | The cpu version is kind of a waste of time as well. There is one | |
169 | instruction (RND) for LP devices only, and several for devices with | |
d0313fb7 | 170 | extended addressing only. We include it for compatibility. */ |
39bec121 | 171 | static enum address_mode amode = c_mode; |
d0313fb7 | 172 | static enum cpu_version cpu = VNONE; |
39bec121 | 173 | |
d0313fb7 | 174 | /* Include string substitutions in listing? */ |
39bec121 | 175 | static int listing_sslist = 0; |
9a736b6b | 176 | |
d0313fb7 | 177 | /* Did we do subsym substitutions on the line? */ |
39bec121 | 178 | static int substitution_line = 0; |
9a736b6b | 179 | |
d0313fb7 | 180 | /* Last label seen. */ |
39bec121 | 181 | static symbolS *last_label_seen = NULL; |
9a736b6b | 182 | |
d0313fb7 | 183 | /* This ensures that all new labels are unique. */ |
39bec121 TW |
184 | static int local_label_id; |
185 | ||
1dab94dd | 186 | static struct hash_control *subsym_recurse_hash; /* Prevent infinite recurse. */ |
9a736b6b | 187 | static struct hash_control *math_hash; /* Built-in math functions. */ |
d0313fb7 NC |
188 | /* Allow maximum levels of macro nesting; level 0 is the main substitution |
189 | symbol table. The other assembler only does 32 levels, so there! */ | |
39bec121 | 190 | static struct hash_control *subsym_hash[100]; |
9a736b6b | 191 | |
1aea3bb8 | 192 | /* Keep track of local labels so we can substitute them before GAS sees them |
39bec121 TW |
193 | since macros use their own 'namespace' for local labels, use a separate hash |
194 | ||
195 | We do our own local label handling 'cuz it's subtly different from the | |
196 | stock GAS handling. | |
197 | ||
198 | We use our own macro nesting counter, since GAS overloads it when expanding | |
d0313fb7 | 199 | other things (like conditionals and repeat loops). */ |
39bec121 TW |
200 | static int macro_level = 0; |
201 | static struct hash_control *local_label_hash[100]; | |
d0313fb7 | 202 | /* Keep track of struct/union tags. */ |
39bec121 TW |
203 | static struct hash_control *stag_hash; |
204 | static struct hash_control *op_hash; | |
205 | static struct hash_control *parop_hash; | |
206 | static struct hash_control *reg_hash; | |
207 | static struct hash_control *mmreg_hash; | |
208 | static struct hash_control *cc_hash; | |
209 | static struct hash_control *cc2_hash; | |
210 | static struct hash_control *cc3_hash; | |
211 | static struct hash_control *sbit_hash; | |
212 | static struct hash_control *misc_symbol_hash; | |
213 | ||
f1e7a2c9 NC |
214 | /* Only word (et al.), align, or conditionals are allowed within |
215 | .struct/.union. */ | |
216 | #define ILLEGAL_WITHIN_STRUCT() \ | |
217 | do \ | |
218 | if (current_stag != NULL) \ | |
219 | { \ | |
220 | as_bad (_("pseudo-op illegal within .struct/.union")); \ | |
221 | return; \ | |
222 | } \ | |
223 | while (0) | |
39bec121 | 224 | |
f1e7a2c9 NC |
225 | static void tic54x_emit_char PARAMS ((char)); |
226 | static fragS * frag_prev PARAMS ((fragS *, segT)); | |
227 | static fragS * bit_offset_frag PARAMS ((fragS *, segT)); | |
228 | static int frag_bit_offset PARAMS ((fragS *, segT)); | |
229 | static char * parse_expression PARAMS ((char *, expressionS *)); | |
230 | static void tic54x_asg PARAMS ((int)); | |
231 | static void tic54x_eval PARAMS ((int)); | |
232 | static void tic54x_bss PARAMS ((int)); | |
233 | static void stag_add_field_symbols PARAMS ((struct stag *, const char *, bfd_vma, symbolS *, const char *)); | |
234 | static void stag_add_field PARAMS ((struct stag *, const char *, bfd_vma, struct stag *)); | |
235 | static void tic54x_struct PARAMS ((int)); | |
236 | static void tic54x_endstruct PARAMS ((int)); | |
237 | static void tic54x_tag PARAMS ((int)); | |
238 | static void tic54x_struct_field PARAMS ((int)); | |
239 | static void tic54x_cons PARAMS ((int)); | |
240 | static void tic54x_remove_local_label PARAMS ((const char *, PTR)); | |
241 | static void tic54x_clear_local_labels PARAMS ((int)); | |
242 | static void tic54x_sect PARAMS ((int)); | |
243 | static void tic54x_space PARAMS ((int)); | |
244 | static void tic54x_usect PARAMS ((int)); | |
245 | static enum cpu_version lookup_version PARAMS ((const char *)); | |
246 | static void set_cpu PARAMS ((enum cpu_version)); | |
247 | static void tic54x_version PARAMS ((int)); | |
248 | static void tic54x_float_cons PARAMS ((int)); | |
249 | static void tic54x_stringer PARAMS ((int)); | |
250 | static void tic54x_p2align PARAMS ((int)); | |
251 | static void tic54x_align_words PARAMS ((int)); | |
252 | static void tic54x_field PARAMS ((int)); | |
253 | static int tic54x_initialized_section PARAMS ((segT)); | |
254 | static void tic54x_clink PARAMS ((int)); | |
255 | static void tic54x_set_default_include PARAMS ((int)); | |
256 | static void tic54x_include PARAMS ((int)); | |
257 | static void tic54x_message PARAMS ((int)); | |
258 | static void tic54x_label PARAMS ((int)); | |
259 | static void tic54x_mmregs PARAMS ((int)); | |
260 | static void tic54x_loop PARAMS ((int)); | |
261 | static void tic54x_endloop PARAMS ((int)); | |
262 | static void tic54x_break PARAMS ((int)); | |
263 | static void set_address_mode PARAMS ((int)); | |
264 | static void tic54x_address_mode PARAMS ((int)); | |
265 | static void tic54x_sblock PARAMS ((int)); | |
266 | static void tic54x_set PARAMS ((int)); | |
267 | static void tic54x_fclist PARAMS ((int)); | |
268 | static void tic54x_sslist PARAMS ((int)); | |
269 | static void tic54x_var PARAMS ((int)); | |
270 | static void tic54x_mlib PARAMS ((int)); | |
271 | static int subsym_symlen PARAMS ((char *, char *)); | |
272 | static int subsym_symcmp PARAMS ((char *, char *)); | |
273 | static int subsym_firstch PARAMS ((char *, char *)); | |
274 | static int subsym_lastch PARAMS ((char *, char *)); | |
275 | static int subsym_isdefed PARAMS ((char *, char *)); | |
276 | static int subsym_ismember PARAMS ((char *, char *)); | |
277 | static int subsym_iscons PARAMS ((char *, char *)); | |
278 | static int subsym_isname PARAMS ((char *, char *)); | |
279 | static int subsym_isreg PARAMS ((char *, char *)); | |
280 | static int subsym_structsz PARAMS ((char *, char *)); | |
281 | static int subsym_structacc PARAMS ((char *, char *)); | |
282 | static float math_ceil PARAMS ((float, float)); | |
283 | static float math_cvi PARAMS ((float, float)); | |
284 | static float math_floor PARAMS ((float, float)); | |
285 | static float math_fmod PARAMS ((float, float)); | |
286 | static float math_int PARAMS ((float, float)); | |
287 | static float math_round PARAMS ((float, float)); | |
288 | static float math_sgn PARAMS ((float, float)); | |
289 | static float math_trunc PARAMS ((float, float)); | |
290 | static float math_acos PARAMS ((float, float)); | |
291 | static float math_asin PARAMS ((float, float)); | |
292 | static float math_atan PARAMS ((float, float)); | |
293 | static float math_atan2 PARAMS ((float, float)); | |
294 | static float math_cosh PARAMS ((float, float)); | |
295 | static float math_cos PARAMS ((float, float)); | |
296 | static float math_cvf PARAMS ((float, float)); | |
297 | static float math_exp PARAMS ((float, float)); | |
298 | static float math_fabs PARAMS ((float, float)); | |
299 | static float math_ldexp PARAMS ((float, float)); | |
300 | static float math_log10 PARAMS ((float, float)); | |
301 | static float math_log PARAMS ((float, float)); | |
302 | static float math_max PARAMS ((float, float)); | |
303 | static float math_min PARAMS ((float, float)); | |
304 | static float math_pow PARAMS ((float, float)); | |
305 | static float math_sin PARAMS ((float, float)); | |
306 | static float math_sinh PARAMS ((float, float)); | |
307 | static float math_sqrt PARAMS ((float, float)); | |
308 | static float math_tan PARAMS ((float, float)); | |
309 | static float math_tanh PARAMS ((float, float)); | |
310 | static int is_accumulator PARAMS ((struct opstruct *)); | |
311 | static int get_operands PARAMS ((struct opstruct operands[], char *)); | |
312 | static int is_immediate PARAMS ((struct opstruct *)); | |
313 | static int is_absolute PARAMS ((struct opstruct *)); | |
314 | static int is_indirect PARAMS ((struct opstruct *)); | |
315 | static int is_dual PARAMS ((struct opstruct *)); | |
316 | static int is_mmreg PARAMS ((struct opstruct *)); | |
317 | static int is_type PARAMS ((struct opstruct *, enum optype)); | |
318 | static int operands_match PARAMS ((tic54x_insn *, struct opstruct *, int, const enum optype *, int, int)); | |
319 | static int encode_dmad PARAMS ((tic54x_insn *, struct opstruct *, int)); | |
320 | static int encode_address PARAMS ((tic54x_insn *, struct opstruct *)); | |
321 | static int encode_indirect PARAMS ((tic54x_insn *, struct opstruct *)); | |
322 | static int encode_integer PARAMS ((tic54x_insn *, struct opstruct *, int, int, int, unsigned short)); | |
323 | static int encode_condition PARAMS ((tic54x_insn *, struct opstruct *)); | |
324 | static int encode_cc3 PARAMS ((tic54x_insn *, struct opstruct *)); | |
325 | static int encode_arx PARAMS ((tic54x_insn *, struct opstruct *)); | |
326 | static int encode_cc2 PARAMS ((tic54x_insn *, struct opstruct *)); | |
327 | static int encode_operand PARAMS ((tic54x_insn *, enum optype, struct opstruct *)); | |
328 | static void emit_insn PARAMS ((tic54x_insn *)); | |
329 | static int build_insn PARAMS ((tic54x_insn *)); | |
330 | static int optimize_insn PARAMS ((tic54x_insn *)); | |
331 | static int tic54x_parse_insn PARAMS ((tic54x_insn *, char *)); | |
332 | static int next_line_shows_parallel PARAMS ((char *)); | |
333 | static int tic54x_parse_parallel_insn_firstline PARAMS ((tic54x_insn *, char *)); | |
334 | static int tic54x_parse_parallel_insn_lastline PARAMS ((tic54x_insn *, char *)); | |
335 | static char * subsym_get_arg PARAMS ((char *, char *, char **, int)); | |
336 | static void subsym_create_or_replace PARAMS ((char *, char *)); | |
337 | static char * subsym_lookup PARAMS ((char *, int)); | |
338 | static char * subsym_substitute PARAMS ((char *, int)); | |
39bec121 | 339 | |
f1e7a2c9 NC |
340 | |
341 | void | |
342 | md_show_usage (stream) | |
343 | FILE *stream; | |
344 | { | |
345 | fprintf (stream, _("C54x-specific command line options:\n")); | |
346 | fprintf (stream, _("-mfar-mode | -mf Use extended addressing\n")); | |
347 | fprintf (stream, _("-mcpu=<CPU version> Specify the CPU version\n")); | |
f1e7a2c9 NC |
348 | fprintf (stream, _("-merrors-to-file <filename>\n")); |
349 | fprintf (stream, _("-me <filename> Redirect errors to a file\n")); | |
350 | } | |
39bec121 | 351 | |
d0313fb7 | 352 | /* Output a single character (upper octect is zero). */ |
9a736b6b | 353 | |
d0313fb7 | 354 | static void |
f1e7a2c9 NC |
355 | tic54x_emit_char (c) |
356 | char c; | |
39bec121 TW |
357 | { |
358 | expressionS exp; | |
359 | ||
360 | exp.X_op = O_constant; | |
361 | exp.X_add_number = c; | |
362 | emit_expr (&exp, 2); | |
363 | } | |
364 | ||
d0313fb7 | 365 | /* Walk backwards in the frag chain. */ |
9a736b6b | 366 | |
39bec121 | 367 | static fragS * |
f1e7a2c9 NC |
368 | frag_prev (frag, seg) |
369 | fragS *frag; | |
370 | segT seg; | |
39bec121 TW |
371 | { |
372 | segment_info_type *seginfo = seg_info (seg); | |
373 | fragS *fragp; | |
374 | ||
d0313fb7 | 375 | for (fragp = seginfo->frchainP->frch_root; fragp; fragp = fragp->fr_next) |
39bec121 TW |
376 | if (fragp->fr_next == frag) |
377 | return fragp; | |
1aea3bb8 | 378 | |
39bec121 TW |
379 | return NULL; |
380 | } | |
381 | ||
382 | static fragS * | |
f1e7a2c9 NC |
383 | bit_offset_frag (frag, seg) |
384 | fragS *frag; | |
385 | segT seg; | |
39bec121 TW |
386 | { |
387 | while (frag != NULL) | |
388 | { | |
d0313fb7 NC |
389 | if (frag->fr_fix == 0 |
390 | && frag->fr_opcode == NULL | |
391 | && frag->tc_frag_data == 0) | |
392 | frag = frag_prev (frag, seg); | |
39bec121 | 393 | else |
d0313fb7 | 394 | return frag; |
39bec121 TW |
395 | } |
396 | return NULL; | |
397 | } | |
398 | ||
d0313fb7 NC |
399 | /* Return the number of bits allocated in the most recent word, or zero if |
400 | none. .field/.space/.bes may leave words partially allocated. */ | |
9a736b6b | 401 | |
39bec121 | 402 | static int |
f1e7a2c9 NC |
403 | frag_bit_offset (frag, seg) |
404 | fragS *frag; | |
405 | segT seg; | |
39bec121 TW |
406 | { |
407 | frag = bit_offset_frag (frag, seg); | |
1aea3bb8 | 408 | |
39bec121 | 409 | if (frag) |
d0313fb7 NC |
410 | return frag->fr_opcode != NULL ? -1 : frag->tc_frag_data; |
411 | ||
39bec121 TW |
412 | return 0; |
413 | } | |
414 | ||
d0313fb7 NC |
415 | /* Read an expression from a C string; returns a pointer past the end of the |
416 | expression. */ | |
9a736b6b | 417 | |
39bec121 | 418 | static char * |
f1e7a2c9 NC |
419 | parse_expression (str, exp) |
420 | char *str; | |
421 | expressionS * exp; | |
39bec121 TW |
422 | { |
423 | char *s; | |
424 | char *tmp; | |
425 | ||
426 | tmp = input_line_pointer; /* Save line pointer. */ | |
427 | input_line_pointer = str; | |
428 | expression (exp); | |
429 | s = input_line_pointer; | |
430 | input_line_pointer = tmp; /* Restore line pointer. */ | |
431 | return s; /* Return pointer to where parsing stopped. */ | |
432 | } | |
433 | ||
1aea3bb8 NC |
434 | /* .asg "character-string"|character-string, symbol |
435 | ||
39bec121 TW |
436 | .eval is the only pseudo-op allowed to perform arithmetic on substitution |
437 | symbols. all other use of symbols defined with .asg are currently | |
d0313fb7 | 438 | unsupported. */ |
9a736b6b | 439 | |
d0313fb7 | 440 | static void |
f1e7a2c9 NC |
441 | tic54x_asg (x) |
442 | int x ATTRIBUTE_UNUSED; | |
39bec121 TW |
443 | { |
444 | int c; | |
445 | char *name; | |
446 | char *str; | |
447 | char *tmp; | |
448 | int quoted = *input_line_pointer == '"'; | |
449 | ||
450 | ILLEGAL_WITHIN_STRUCT (); | |
451 | ||
452 | if (quoted) | |
453 | { | |
454 | int len; | |
455 | str = demand_copy_C_string (&len); | |
456 | c = *input_line_pointer; | |
457 | } | |
458 | else | |
459 | { | |
460 | str = input_line_pointer; | |
461 | while ((c = *input_line_pointer) != ',') | |
d0313fb7 NC |
462 | { |
463 | if (is_end_of_line[(int) *input_line_pointer]) | |
464 | break; | |
465 | ++input_line_pointer; | |
466 | } | |
39bec121 TW |
467 | *input_line_pointer = 0; |
468 | } | |
469 | if (c != ',') | |
470 | { | |
471 | as_bad (_("Comma and symbol expected for '.asg STRING, SYMBOL'")); | |
472 | ignore_rest_of_line (); | |
473 | return; | |
474 | } | |
475 | ||
476 | name = ++input_line_pointer; | |
477 | c = get_symbol_end (); /* Get terminator. */ | |
3882b010 | 478 | if (!ISALPHA (*name)) |
39bec121 TW |
479 | { |
480 | as_bad ("symbols assigned with .asg must begin with a letter"); | |
481 | ignore_rest_of_line (); | |
482 | return; | |
483 | } | |
484 | ||
485 | tmp = xmalloc (strlen (str) + 1); | |
486 | strcpy (tmp, str); | |
487 | str = tmp; | |
488 | tmp = xmalloc (strlen (name) + 1); | |
489 | strcpy (tmp, name); | |
490 | name = tmp; | |
491 | subsym_create_or_replace (name, str); | |
492 | *input_line_pointer = c; | |
493 | demand_empty_rest_of_line (); | |
494 | } | |
495 | ||
1aea3bb8 | 496 | /* .eval expression, symbol |
39bec121 | 497 | There's something screwy about this. The other assembler sometimes does and |
1aea3bb8 | 498 | sometimes doesn't substitute symbols defined with .eval. |
39bec121 | 499 | We'll put the symbols into the subsym table as well as the normal symbol |
d0313fb7 | 500 | table, since that's what works best. */ |
9a736b6b | 501 | |
d0313fb7 | 502 | static void |
f1e7a2c9 NC |
503 | tic54x_eval (x) |
504 | int x ATTRIBUTE_UNUSED; | |
39bec121 TW |
505 | { |
506 | char c; | |
507 | int value; | |
508 | char *name; | |
509 | symbolS *symbolP; | |
510 | char valuestr[32], *tmp; | |
511 | int quoted; | |
512 | ||
513 | ILLEGAL_WITHIN_STRUCT (); | |
514 | ||
515 | SKIP_WHITESPACE (); | |
516 | ||
517 | quoted = *input_line_pointer == '"'; | |
518 | if (quoted) | |
519 | ++input_line_pointer; | |
520 | value = get_absolute_expression (); | |
521 | if (quoted) | |
522 | { | |
523 | if (*input_line_pointer != '"') | |
d0313fb7 NC |
524 | { |
525 | as_bad (_("Unterminated string after absolute expression")); | |
526 | ignore_rest_of_line (); | |
527 | return; | |
528 | } | |
39bec121 TW |
529 | ++input_line_pointer; |
530 | } | |
531 | if (*input_line_pointer++ != ',') | |
532 | { | |
533 | as_bad (_("Comma and symbol expected for '.eval EXPR, SYMBOL'")); | |
534 | ignore_rest_of_line (); | |
535 | return; | |
536 | } | |
537 | name = input_line_pointer; | |
538 | c = get_symbol_end (); /* Get terminator. */ | |
d0313fb7 | 539 | tmp = xmalloc (strlen (name) + 1); |
39bec121 TW |
540 | name = strcpy (tmp, name); |
541 | *input_line_pointer = c; | |
542 | ||
3882b010 | 543 | if (!ISALPHA (*name)) |
39bec121 TW |
544 | { |
545 | as_bad (_("symbols assigned with .eval must begin with a letter")); | |
546 | ignore_rest_of_line (); | |
547 | return; | |
548 | } | |
549 | symbolP = symbol_new (name, absolute_section, | |
550 | (valueT) value, &zero_address_frag); | |
551 | SF_SET_LOCAL (symbolP); | |
552 | symbol_table_insert (symbolP); | |
553 | ||
554 | /* The "other" assembler sometimes doesn't put .eval's in the subsym table | |
555 | But since there's not written rule as to when, don't even bother trying | |
d0313fb7 | 556 | to match their behavior. */ |
39bec121 TW |
557 | sprintf (valuestr, "%d", value); |
558 | tmp = xmalloc (strlen (valuestr) + 1); | |
559 | strcpy (tmp, valuestr); | |
560 | subsym_create_or_replace (name, tmp); | |
561 | ||
562 | demand_empty_rest_of_line (); | |
563 | } | |
564 | ||
1aea3bb8 | 565 | /* .bss symbol, size [, [blocking flag] [, alignment flag] |
39bec121 TW |
566 | |
567 | alignment is to a longword boundary; blocking is to 128-word boundary. | |
568 | ||
569 | 1) if there is a hole in memory, this directive should attempt to fill it | |
570 | (not yet implemented). | |
571 | ||
572 | 2) if the blocking flag is not set, allocate at the current SPC | |
573 | otherwise, check to see if the current SPC plus the space to be | |
574 | allocated crosses the page boundary (128 words). | |
575 | if there's not enough space, create a hole and align with the next page | |
1aea3bb8 | 576 | boundary. |
d0313fb7 | 577 | (not yet implemented). */ |
9a736b6b | 578 | |
d0313fb7 | 579 | static void |
f1e7a2c9 NC |
580 | tic54x_bss (x) |
581 | int x ATTRIBUTE_UNUSED; | |
39bec121 TW |
582 | { |
583 | char c; | |
584 | char *name; | |
585 | char *p; | |
586 | int words; | |
587 | segT current_seg; | |
588 | subsegT current_subseg; | |
589 | symbolS *symbolP; | |
590 | int block = 0; | |
591 | int align = 0; | |
592 | ||
593 | ILLEGAL_WITHIN_STRUCT (); | |
594 | ||
d0313fb7 NC |
595 | current_seg = now_seg; /* Save current seg. */ |
596 | current_subseg = now_subseg; /* Save current subseg. */ | |
39bec121 TW |
597 | |
598 | name = input_line_pointer; | |
599 | c = get_symbol_end (); /* Get terminator. */ | |
600 | if (c != ',') | |
601 | { | |
602 | as_bad (".bss size argument missing\n"); | |
603 | ignore_rest_of_line (); | |
604 | return; | |
605 | } | |
606 | ||
607 | ++input_line_pointer; | |
608 | words = get_absolute_expression (); | |
609 | if (words < 0) | |
610 | { | |
611 | as_bad (".bss size %d < 0!", words); | |
612 | ignore_rest_of_line (); | |
613 | return; | |
614 | } | |
615 | ||
616 | if (*input_line_pointer == ',') | |
617 | { | |
9a736b6b | 618 | /* The blocking flag may be missing. */ |
39bec121 TW |
619 | ++input_line_pointer; |
620 | if (*input_line_pointer != ',') | |
d0313fb7 | 621 | block = get_absolute_expression (); |
39bec121 | 622 | else |
d0313fb7 | 623 | block = 0; |
39bec121 TW |
624 | |
625 | if (*input_line_pointer == ',') | |
d0313fb7 NC |
626 | { |
627 | ++input_line_pointer; | |
628 | align = get_absolute_expression (); | |
629 | } | |
39bec121 | 630 | else |
d0313fb7 | 631 | align = 0; |
39bec121 TW |
632 | } |
633 | else | |
634 | block = align = 0; | |
635 | ||
636 | subseg_set (bss_section, 0); | |
637 | symbolP = symbol_find_or_make (name); | |
638 | ||
639 | if (S_GET_SEGMENT (symbolP) == bss_section) | |
640 | symbolP->sy_frag->fr_symbol = (symbolS *) NULL; | |
641 | ||
642 | symbol_set_frag (symbolP, frag_now); | |
643 | p = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, | |
6e917903 | 644 | (offsetT) (words * OCTETS_PER_BYTE), (char *) 0); |
9a736b6b | 645 | *p = 0; /* Fill char. */ |
39bec121 TW |
646 | |
647 | S_SET_SEGMENT (symbolP, bss_section); | |
648 | ||
649 | /* The symbol may already have been created with a preceding | |
650 | ".globl" directive -- be careful not to step on storage class | |
651 | in that case. Otherwise, set it to static. */ | |
652 | if (S_GET_STORAGE_CLASS (symbolP) != C_EXT) | |
653 | S_SET_STORAGE_CLASS (symbolP, C_STAT); | |
654 | ||
655 | if (align) | |
656 | { | |
657 | /* s_align eats end of line; restore it */ | |
658 | s_align_bytes (4); | |
659 | --input_line_pointer; | |
660 | } | |
661 | ||
662 | if (block) | |
ebe372c1 | 663 | bss_section->flags |= SEC_TIC54X_BLOCK; |
39bec121 | 664 | |
9a736b6b | 665 | subseg_set (current_seg, current_subseg); /* Restore current seg. */ |
39bec121 TW |
666 | demand_empty_rest_of_line (); |
667 | } | |
668 | ||
669 | static void | |
f1e7a2c9 NC |
670 | stag_add_field_symbols (stag, path, base_offset, rootsym, root_stag_name) |
671 | struct stag *stag; | |
672 | const char *path; | |
673 | bfd_vma base_offset; | |
674 | symbolS *rootsym; | |
675 | const char *root_stag_name; | |
39bec121 TW |
676 | { |
677 | char prefix[strlen (path) + 2]; | |
678 | struct stag_field *field = stag->field; | |
1aea3bb8 NC |
679 | |
680 | /* Construct a symbol for every field contained within this structure | |
d0313fb7 | 681 | including fields within structure fields. */ |
39bec121 TW |
682 | strcpy (prefix, path); |
683 | if (*path) | |
684 | strcat (prefix, "."); | |
685 | ||
686 | while (field != NULL) | |
687 | { | |
688 | int len = strlen (prefix) + strlen (field->name) + 2; | |
689 | char *name = xmalloc (len); | |
690 | strcpy (name, prefix); | |
691 | strcat (name, field->name); | |
692 | ||
693 | if (rootsym == NULL) | |
9a736b6b NC |
694 | { |
695 | symbolS *sym; | |
696 | sym = symbol_new (name, absolute_section, | |
697 | (field->stag ? field->offset : | |
698 | (valueT) (base_offset + field->offset)), | |
699 | &zero_address_frag); | |
700 | SF_SET_LOCAL (sym); | |
701 | symbol_table_insert (sym); | |
702 | } | |
39bec121 | 703 | else |
9a736b6b NC |
704 | { |
705 | char *replacement = xmalloc (strlen (name) | |
1aea3bb8 | 706 | + strlen (stag->name) + 2); |
9a736b6b NC |
707 | strcpy (replacement, S_GET_NAME (rootsym)); |
708 | strcat (replacement, "+"); | |
709 | strcat (replacement, root_stag_name); | |
710 | strcat (replacement, name + strlen (S_GET_NAME (rootsym))); | |
711 | hash_insert (subsym_hash[0], name, replacement); | |
712 | } | |
39bec121 | 713 | |
d0313fb7 | 714 | /* Recurse if the field is a structure. |
9a736b6b | 715 | Note the field offset is relative to the outermost struct. */ |
39bec121 | 716 | if (field->stag != NULL) |
9a736b6b NC |
717 | stag_add_field_symbols (field->stag, name, |
718 | field->offset, | |
719 | rootsym, root_stag_name); | |
39bec121 TW |
720 | field = field->next; |
721 | } | |
722 | } | |
723 | ||
d0313fb7 NC |
724 | /* Keep track of stag fields so that when structures are nested we can add the |
725 | complete dereferencing symbols to the symbol table. */ | |
9a736b6b | 726 | |
39bec121 | 727 | static void |
f1e7a2c9 NC |
728 | stag_add_field (parent, name, offset, stag) |
729 | struct stag *parent; | |
730 | const char *name; | |
731 | bfd_vma offset; | |
732 | struct stag *stag; | |
39bec121 TW |
733 | { |
734 | struct stag_field *sfield = xmalloc (sizeof (struct stag_field)); | |
735 | ||
736 | memset (sfield, 0, sizeof (*sfield)); | |
1aea3bb8 | 737 | sfield->name = strcpy (xmalloc (strlen (name) + 1), name); |
39bec121 TW |
738 | sfield->offset = offset; |
739 | sfield->bitfield_offset = parent->current_bitfield_offset; | |
740 | sfield->stag = stag; | |
741 | if (parent->field == NULL) | |
742 | parent->field = sfield; | |
1aea3bb8 NC |
743 | else |
744 | { | |
745 | struct stag_field *sf = parent->field; | |
746 | while (sf->next != NULL) | |
747 | sf = sf->next; | |
748 | sf->next = sfield; | |
749 | } | |
d0313fb7 | 750 | /* Only create a symbol for this field if the parent has no name. */ |
39bec121 TW |
751 | if (!strncmp (".fake", parent->name, 5)) |
752 | { | |
1aea3bb8 | 753 | symbolS *sym = symbol_new (name, absolute_section, |
9a736b6b | 754 | (valueT) offset, &zero_address_frag); |
39bec121 TW |
755 | SF_SET_LOCAL (sym); |
756 | symbol_table_insert (sym); | |
757 | } | |
758 | } | |
759 | ||
760 | /* [STAG] .struct [OFFSET] | |
9a736b6b NC |
761 | Start defining structure offsets (symbols in absolute section). */ |
762 | ||
39bec121 | 763 | static void |
f1e7a2c9 NC |
764 | tic54x_struct (arg) |
765 | int arg; | |
39bec121 TW |
766 | { |
767 | int start_offset = 0; | |
768 | int is_union = arg; | |
769 | ||
770 | if (!current_stag) | |
771 | { | |
d0313fb7 | 772 | /* Starting a new struct, switch to absolute section. */ |
39bec121 TW |
773 | stag_saved_seg = now_seg; |
774 | stag_saved_subseg = now_subseg; | |
775 | subseg_set (absolute_section, 0); | |
776 | } | |
d0313fb7 | 777 | /* Align the current pointer. */ |
39bec121 TW |
778 | else if (current_stag->current_bitfield_offset != 0) |
779 | { | |
780 | ++abs_section_offset; | |
781 | current_stag->current_bitfield_offset = 0; | |
782 | } | |
783 | ||
d0313fb7 | 784 | /* Offset expression is only meaningful for global .structs. */ |
39bec121 TW |
785 | if (!is_union) |
786 | { | |
d0313fb7 | 787 | /* Offset is ignored in inner structs. */ |
39bec121 | 788 | SKIP_WHITESPACE (); |
1aea3bb8 | 789 | if (!is_end_of_line[(int) *input_line_pointer]) |
9a736b6b | 790 | start_offset = get_absolute_expression (); |
39bec121 | 791 | else |
9a736b6b | 792 | start_offset = 0; |
39bec121 TW |
793 | } |
794 | ||
795 | if (current_stag) | |
796 | { | |
d0313fb7 | 797 | /* Nesting, link to outer one. */ |
1aea3bb8 | 798 | current_stag->inner = (struct stag *) xmalloc (sizeof (struct stag)); |
39bec121 TW |
799 | memset (current_stag->inner, 0, sizeof (struct stag)); |
800 | current_stag->inner->outer = current_stag; | |
801 | current_stag = current_stag->inner; | |
802 | if (start_offset) | |
9a736b6b | 803 | as_warn (_("Offset on nested structures is ignored")); |
39bec121 TW |
804 | start_offset = abs_section_offset; |
805 | } | |
1aea3bb8 | 806 | else |
39bec121 | 807 | { |
1aea3bb8 | 808 | current_stag = (struct stag *) xmalloc (sizeof (struct stag)); |
39bec121 TW |
809 | memset (current_stag, 0, sizeof (struct stag)); |
810 | abs_section_offset = start_offset; | |
811 | } | |
812 | current_stag->is_union = is_union; | |
813 | ||
814 | if (line_label == NULL) | |
815 | { | |
816 | static int struct_count = 0; | |
817 | char fake[] = ".fake_stagNNNNNNN"; | |
818 | sprintf (fake, ".fake_stag%d", struct_count++); | |
819 | current_stag->sym = symbol_new (fake, absolute_section, | |
9a736b6b NC |
820 | (valueT) abs_section_offset, |
821 | &zero_address_frag); | |
39bec121 TW |
822 | } |
823 | else | |
824 | { | |
825 | char label[strlen (S_GET_NAME (line_label)) + 1]; | |
826 | strcpy (label, S_GET_NAME (line_label)); | |
827 | current_stag->sym = symbol_new (label, absolute_section, | |
9a736b6b NC |
828 | (valueT) abs_section_offset, |
829 | &zero_address_frag); | |
39bec121 TW |
830 | } |
831 | current_stag->name = S_GET_NAME (current_stag->sym); | |
832 | SF_SET_LOCAL (current_stag->sym); | |
d0313fb7 | 833 | /* Nested .structs don't go into the symbol table. */ |
39bec121 TW |
834 | if (current_stag->outer == NULL) |
835 | symbol_table_insert (current_stag->sym); | |
836 | ||
837 | line_label = NULL; | |
838 | } | |
839 | ||
1aea3bb8 | 840 | /* [LABEL] .endstruct |
39bec121 | 841 | finish defining structure offsets; optional LABEL's value will be the size |
d0313fb7 | 842 | of the structure. */ |
9a736b6b | 843 | |
39bec121 | 844 | static void |
f1e7a2c9 NC |
845 | tic54x_endstruct (is_union) |
846 | int is_union; | |
39bec121 TW |
847 | { |
848 | int size; | |
1aea3bb8 | 849 | const char *path = |
39bec121 | 850 | !strncmp (current_stag->name, ".fake", 5) ? "" : current_stag->name; |
1aea3bb8 | 851 | |
39bec121 TW |
852 | if (!current_stag || current_stag->is_union != is_union) |
853 | { | |
1aea3bb8 | 854 | as_bad (_(".end%s without preceding .%s"), |
9a736b6b NC |
855 | is_union ? "union" : "struct", |
856 | is_union ? "union" : "struct"); | |
39bec121 TW |
857 | ignore_rest_of_line (); |
858 | return; | |
859 | } | |
860 | ||
d0313fb7 | 861 | /* Align end of structures. */ |
39bec121 TW |
862 | if (current_stag->current_bitfield_offset) |
863 | { | |
864 | ++abs_section_offset; | |
865 | current_stag->current_bitfield_offset = 0; | |
866 | } | |
867 | ||
868 | if (current_stag->is_union) | |
869 | size = current_stag->size; | |
870 | else | |
871 | size = abs_section_offset - S_GET_VALUE (current_stag->sym); | |
872 | if (line_label != NULL) | |
873 | { | |
874 | S_SET_VALUE (line_label, size); | |
875 | symbol_table_insert (line_label); | |
876 | line_label = NULL; | |
877 | } | |
878 | ||
d0313fb7 | 879 | /* Union size has already been calculated. */ |
39bec121 TW |
880 | if (!current_stag->is_union) |
881 | current_stag->size = size; | |
d0313fb7 | 882 | /* Nested .structs don't get put in the stag table. */ |
39bec121 TW |
883 | if (current_stag->outer == NULL) |
884 | { | |
885 | hash_insert (stag_hash, current_stag->name, current_stag); | |
1aea3bb8 | 886 | stag_add_field_symbols (current_stag, path, |
9a736b6b NC |
887 | S_GET_VALUE (current_stag->sym), |
888 | NULL, NULL); | |
39bec121 TW |
889 | } |
890 | current_stag = current_stag->outer; | |
891 | ||
d0313fb7 NC |
892 | /* If this is a nested .struct/.union, add it as a field to the enclosing |
893 | one. otherwise, restore the section we were in. */ | |
39bec121 TW |
894 | if (current_stag != NULL) |
895 | { | |
896 | stag_add_field (current_stag, current_stag->inner->name, | |
9a736b6b NC |
897 | S_GET_VALUE (current_stag->inner->sym), |
898 | current_stag->inner); | |
39bec121 TW |
899 | } |
900 | else | |
901 | subseg_set (stag_saved_seg, stag_saved_subseg); | |
902 | } | |
903 | ||
904 | /* [LABEL] .tag STAG | |
905 | Reference a structure within a structure, as a sized field with an optional | |
1aea3bb8 | 906 | label. |
39bec121 | 907 | If used outside of a .struct/.endstruct, overlays the given structure |
d0313fb7 | 908 | format on the existing allocated space. */ |
9a736b6b | 909 | |
39bec121 | 910 | static void |
f1e7a2c9 NC |
911 | tic54x_tag (ignore) |
912 | int ignore ATTRIBUTE_UNUSED; | |
39bec121 TW |
913 | { |
914 | char *name = input_line_pointer; | |
915 | int c = get_symbol_end (); | |
1aea3bb8 | 916 | struct stag *stag = (struct stag *) hash_find (stag_hash, name); |
39bec121 TW |
917 | |
918 | if (!stag) | |
919 | { | |
920 | if (*name) | |
9a736b6b | 921 | as_bad (_("Unrecognized struct/union tag '%s'"), name); |
39bec121 | 922 | else |
9a736b6b | 923 | as_bad (_(".tag requires a structure tag")); |
39bec121 TW |
924 | ignore_rest_of_line (); |
925 | return; | |
926 | } | |
927 | if (line_label == NULL) | |
928 | { | |
929 | as_bad (_("Label required for .tag")); | |
930 | ignore_rest_of_line (); | |
931 | return; | |
932 | } | |
933 | else | |
934 | { | |
1aea3bb8 NC |
935 | char label[strlen (S_GET_NAME (line_label)) + 1]; |
936 | ||
937 | strcpy (label, S_GET_NAME (line_label)); | |
39bec121 | 938 | if (current_stag != NULL) |
9a736b6b NC |
939 | stag_add_field (current_stag, label, |
940 | abs_section_offset - S_GET_VALUE (current_stag->sym), | |
941 | stag); | |
39bec121 | 942 | else |
9a736b6b NC |
943 | { |
944 | symbolS *sym = symbol_find (label); | |
f1e7a2c9 | 945 | |
9a736b6b NC |
946 | if (!sym) |
947 | { | |
948 | as_bad (_(".tag target '%s' undefined"), label); | |
949 | ignore_rest_of_line (); | |
950 | return; | |
951 | } | |
952 | stag_add_field_symbols (stag, S_GET_NAME (sym), | |
953 | S_GET_VALUE (stag->sym), sym, stag->name); | |
954 | } | |
39bec121 | 955 | } |
1aea3bb8 | 956 | |
d0313fb7 | 957 | /* Bump by the struct size, but only if we're within a .struct section. */ |
39bec121 TW |
958 | if (current_stag != NULL && !current_stag->is_union) |
959 | abs_section_offset += stag->size; | |
960 | ||
961 | *input_line_pointer = c; | |
962 | demand_empty_rest_of_line (); | |
963 | line_label = NULL; | |
964 | } | |
965 | ||
d0313fb7 | 966 | /* Handle all .byte, .char, .double, .field, .float, .half, .int, .long, |
39bec121 | 967 | .short, .string, .ubyte, .uchar, .uhalf, .uint, .ulong, .ushort, .uword, |
d0313fb7 | 968 | and .word. */ |
9a736b6b | 969 | |
39bec121 | 970 | static void |
f1e7a2c9 NC |
971 | tic54x_struct_field (type) |
972 | int type; | |
39bec121 TW |
973 | { |
974 | int size; | |
975 | int count = 1; | |
976 | int new_bitfield_offset = 0; | |
977 | int field_align = current_stag->current_bitfield_offset != 0; | |
978 | int longword_align = 0; | |
979 | ||
980 | SKIP_WHITESPACE (); | |
1aea3bb8 | 981 | if (!is_end_of_line[(int) *input_line_pointer]) |
39bec121 TW |
982 | count = get_absolute_expression (); |
983 | ||
984 | switch (type) | |
985 | { | |
986 | case 'b': | |
987 | case 'B': | |
988 | case 'c': | |
989 | case 'C': | |
990 | case 'h': | |
991 | case 'H': | |
992 | case 'i': | |
993 | case 'I': | |
994 | case 's': | |
995 | case 'S': | |
996 | case 'w': | |
997 | case 'W': | |
9a736b6b | 998 | case '*': /* String. */ |
39bec121 TW |
999 | size = 1; |
1000 | break; | |
1001 | case 'f': | |
1002 | case 'l': | |
1003 | case 'L': | |
1004 | longword_align = 1; | |
1005 | size = 2; | |
1006 | break; | |
9a736b6b | 1007 | case '.': /* Bitfield. */ |
39bec121 TW |
1008 | size = 0; |
1009 | if (count < 1 || count > 32) | |
9a736b6b NC |
1010 | { |
1011 | as_bad (_(".field count '%d' out of range (1 <= X <= 32)"), count); | |
1012 | ignore_rest_of_line (); | |
1013 | return; | |
1014 | } | |
39bec121 | 1015 | if (current_stag->current_bitfield_offset + count > 16) |
9a736b6b NC |
1016 | { |
1017 | /* Set the appropriate size and new field offset. */ | |
1018 | if (count == 32) | |
1019 | { | |
1020 | size = 2; | |
1aea3bb8 | 1021 | count = 1; |
9a736b6b NC |
1022 | } |
1023 | else if (count > 16) | |
1024 | { | |
1025 | size = 1; | |
1aea3bb8 | 1026 | count = 1; |
9a736b6b NC |
1027 | new_bitfield_offset = count - 16; |
1028 | } | |
1029 | else | |
f1e7a2c9 | 1030 | new_bitfield_offset = count; |
9a736b6b | 1031 | } |
39bec121 | 1032 | else |
9a736b6b NC |
1033 | { |
1034 | field_align = 0; | |
1035 | new_bitfield_offset = current_stag->current_bitfield_offset + count; | |
1036 | } | |
39bec121 TW |
1037 | break; |
1038 | default: | |
1039 | as_bad (_("Unrecognized field type '%c'"), type); | |
1040 | ignore_rest_of_line (); | |
1041 | return; | |
1042 | } | |
1043 | ||
1044 | if (field_align) | |
1045 | { | |
d0313fb7 | 1046 | /* Align to the actual starting position of the field. */ |
39bec121 TW |
1047 | current_stag->current_bitfield_offset = 0; |
1048 | ++abs_section_offset; | |
1049 | } | |
d0313fb7 | 1050 | /* Align to longword boundary. */ |
39bec121 TW |
1051 | if (longword_align && (abs_section_offset & 0x1)) |
1052 | ++abs_section_offset; | |
1053 | ||
1054 | if (line_label == NULL) | |
1055 | { | |
1056 | static int fieldno = 0; | |
1057 | char fake[] = ".fake_fieldNNNNN"; | |
f1e7a2c9 | 1058 | |
39bec121 | 1059 | sprintf (fake, ".fake_field%d", fieldno++); |
1aea3bb8 | 1060 | stag_add_field (current_stag, fake, |
9a736b6b NC |
1061 | abs_section_offset - S_GET_VALUE (current_stag->sym), |
1062 | NULL); | |
39bec121 TW |
1063 | } |
1064 | else | |
1065 | { | |
1066 | char label[strlen (S_GET_NAME (line_label) + 1)]; | |
f1e7a2c9 | 1067 | |
39bec121 | 1068 | strcpy (label, S_GET_NAME (line_label)); |
1aea3bb8 | 1069 | stag_add_field (current_stag, label, |
9a736b6b NC |
1070 | abs_section_offset - S_GET_VALUE (current_stag->sym), |
1071 | NULL); | |
39bec121 TW |
1072 | } |
1073 | ||
1074 | if (current_stag->is_union) | |
1075 | { | |
d0313fb7 | 1076 | /* Note we treat the element as if it were an array of COUNT. */ |
1aea3bb8 | 1077 | if (current_stag->size < (unsigned) size * count) |
9a736b6b | 1078 | current_stag->size = size * count; |
39bec121 TW |
1079 | } |
1080 | else | |
1081 | { | |
1aea3bb8 | 1082 | abs_section_offset += (unsigned) size * count; |
39bec121 TW |
1083 | current_stag->current_bitfield_offset = new_bitfield_offset; |
1084 | } | |
1085 | line_label = NULL; | |
1086 | } | |
1087 | ||
d0313fb7 | 1088 | /* Handle .byte, .word. .int, .long and all variants. */ |
9a736b6b | 1089 | |
1aea3bb8 | 1090 | static void |
f1e7a2c9 NC |
1091 | tic54x_cons (type) |
1092 | int type; | |
39bec121 | 1093 | { |
f1e7a2c9 | 1094 | unsigned int c; |
39bec121 TW |
1095 | int octets; |
1096 | ||
d0313fb7 | 1097 | /* If we're within a .struct construct, don't actually allocate space. */ |
39bec121 TW |
1098 | if (current_stag != NULL) |
1099 | { | |
1100 | tic54x_struct_field (type); | |
1101 | return; | |
1102 | } | |
1103 | ||
1104 | #ifdef md_flush_pending_output | |
1105 | md_flush_pending_output (); | |
1106 | #endif | |
1107 | ||
1108 | generate_lineno_debug (); | |
1109 | ||
d0313fb7 | 1110 | /* Align long words to long word boundaries (4 octets). */ |
39bec121 TW |
1111 | if (type == 'l' || type == 'L') |
1112 | { | |
1113 | frag_align (2, 0, 2); | |
d0313fb7 | 1114 | /* If there's a label, assign it to the first allocated word. */ |
39bec121 | 1115 | if (line_label != NULL) |
9a736b6b NC |
1116 | { |
1117 | symbol_set_frag (line_label, frag_now); | |
1118 | S_SET_VALUE (line_label, frag_now_fix ()); | |
1119 | } | |
39bec121 TW |
1120 | } |
1121 | ||
1122 | switch (type) | |
1123 | { | |
1124 | case 'l': | |
1125 | case 'L': | |
1126 | case 'x': | |
1127 | octets = 4; | |
1128 | break; | |
1129 | case 'b': | |
1130 | case 'B': | |
1131 | case 'c': | |
1132 | case 'C': | |
1133 | octets = 1; | |
1134 | break; | |
1135 | default: | |
1136 | octets = 2; | |
1137 | break; | |
1138 | } | |
1139 | ||
1140 | do | |
1141 | { | |
1142 | if (*input_line_pointer == '"') | |
1143 | { | |
1144 | input_line_pointer++; | |
1145 | while (is_a_char (c = next_char_of_string ())) | |
1146 | tic54x_emit_char (c); | |
1147 | know (input_line_pointer[-1] == '\"'); | |
1148 | } | |
1149 | else | |
1150 | { | |
1151 | expressionS exp; | |
1152 | ||
1153 | input_line_pointer = parse_expression (input_line_pointer, &exp); | |
1154 | if (exp.X_op == O_constant) | |
1155 | { | |
9a736b6b NC |
1156 | offsetT value = exp.X_add_number; |
1157 | /* Truncate overflows. */ | |
39bec121 TW |
1158 | switch (octets) |
1159 | { | |
1160 | case 1: | |
9a736b6b NC |
1161 | if ((value > 0 && value > 0xFF) |
1162 | || (value < 0 && value < - 0x100)) | |
1163 | as_warn ("Overflow in expression, truncated to 8 bits"); | |
39bec121 TW |
1164 | break; |
1165 | case 2: | |
9a736b6b NC |
1166 | if ((value > 0 && value > 0xFFFF) |
1167 | || (value < 0 && value < - 0x10000)) | |
1168 | as_warn ("Overflow in expression, truncated to 16 bits"); | |
39bec121 TW |
1169 | break; |
1170 | } | |
1171 | } | |
9a736b6b NC |
1172 | if (exp.X_op != O_constant && octets < 2) |
1173 | { | |
1174 | /* Disallow .byte with a non constant expression that will | |
1175 | require relocation. */ | |
1176 | as_bad (_("Relocatable values require at least WORD storage")); | |
1177 | ignore_rest_of_line (); | |
1178 | return; | |
1179 | } | |
1180 | ||
1181 | if (exp.X_op != O_constant | |
1182 | && amode == c_mode | |
1183 | && octets == 4) | |
1184 | { | |
1185 | /* FIXME -- at one point TI tools used to output REL16 | |
1186 | relocations, but I don't think the latest tools do at all | |
1187 | The current tools output extended relocations regardless of | |
33b7f697 | 1188 | the addressing mode (I actually think that ".c_mode" is |
9a736b6b NC |
1189 | totally ignored in the latest tools). */ |
1190 | amode = far_mode; | |
1191 | emitting_long = 1; | |
1192 | emit_expr (&exp, 4); | |
1193 | emitting_long = 0; | |
1194 | amode = c_mode; | |
1195 | } | |
1196 | else | |
1197 | { | |
1198 | emitting_long = octets == 4; | |
1199 | emit_expr (&exp, (octets == 1) ? 2 : octets); | |
1200 | emitting_long = 0; | |
1201 | } | |
39bec121 TW |
1202 | } |
1203 | } | |
1204 | while (*input_line_pointer++ == ','); | |
1205 | ||
1206 | input_line_pointer--; /* Put terminator back into stream. */ | |
1207 | demand_empty_rest_of_line (); | |
1208 | } | |
1209 | ||
1210 | /* .global <symbol>[,...,<symbolN>] | |
1211 | .def <symbol>[,...,<symbolN>] | |
1212 | .ref <symbol>[,...,<symbolN>] | |
1213 | ||
1aea3bb8 | 1214 | These all identify global symbols. |
39bec121 TW |
1215 | |
1216 | .def means the symbol is defined in the current module and can be accessed | |
1217 | by other files. The symbol should be placed in the symbol table. | |
1218 | ||
1219 | .ref means the symbol is used in the current module but defined in another | |
1220 | module. The linker is to resolve this symbol's definition at link time. | |
1221 | ||
1222 | .global should act as a .ref or .def, as needed. | |
1223 | ||
1aea3bb8 | 1224 | global, def and ref all have symbol storage classes of C_EXT. |
39bec121 TW |
1225 | |
1226 | I can't identify any difference in how the "other" c54x assembler treats | |
d0313fb7 | 1227 | these, so we ignore the type here. */ |
9a736b6b | 1228 | |
39bec121 | 1229 | void |
f1e7a2c9 NC |
1230 | tic54x_global (type) |
1231 | int type; | |
39bec121 TW |
1232 | { |
1233 | char *name; | |
1234 | int c; | |
1235 | symbolS *symbolP; | |
1236 | ||
1237 | if (type == 'r') | |
9a736b6b | 1238 | as_warn (_("Use of .def/.ref is deprecated. Use .global instead")); |
39bec121 TW |
1239 | |
1240 | ILLEGAL_WITHIN_STRUCT (); | |
1241 | ||
1242 | do | |
1243 | { | |
1244 | name = input_line_pointer; | |
1245 | c = get_symbol_end (); | |
1246 | symbolP = symbol_find_or_make (name); | |
1247 | ||
1248 | *input_line_pointer = c; | |
1249 | S_SET_STORAGE_CLASS (symbolP, C_EXT); | |
1250 | if (c == ',') | |
1251 | { | |
1252 | input_line_pointer++; | |
1aea3bb8 | 1253 | if (is_end_of_line[(int) *input_line_pointer]) |
39bec121 TW |
1254 | c = *input_line_pointer; |
1255 | } | |
1256 | } | |
1257 | while (c == ','); | |
1258 | ||
1259 | demand_empty_rest_of_line (); | |
1260 | } | |
1261 | ||
d0313fb7 | 1262 | /* Remove the symbol from the local label hash lookup. */ |
9a736b6b | 1263 | |
39bec121 | 1264 | static void |
f1e7a2c9 NC |
1265 | tic54x_remove_local_label (key, value) |
1266 | const char *key; | |
1267 | PTR value ATTRIBUTE_UNUSED; | |
39bec121 TW |
1268 | { |
1269 | PTR *elem = hash_delete (local_label_hash[macro_level], key); | |
1270 | free (elem); | |
1271 | } | |
1272 | ||
d0313fb7 | 1273 | /* Reset all local labels. */ |
9a736b6b | 1274 | |
1aea3bb8 | 1275 | static void |
f1e7a2c9 NC |
1276 | tic54x_clear_local_labels (ignored) |
1277 | int ignored ATTRIBUTE_UNUSED; | |
39bec121 TW |
1278 | { |
1279 | hash_traverse (local_label_hash[macro_level], tic54x_remove_local_label); | |
1280 | } | |
1281 | ||
d0313fb7 | 1282 | /* .text |
39bec121 TW |
1283 | .data |
1284 | .sect "section name" | |
1285 | ||
1286 | Initialized section | |
1aea3bb8 | 1287 | make sure local labels get cleared when changing sections |
39bec121 TW |
1288 | |
1289 | ARG is 't' for text, 'd' for data, or '*' for a named section | |
1290 | ||
6e917903 TW |
1291 | For compatibility, '*' sections are SEC_CODE if instructions are |
1292 | encountered, or SEC_DATA if not. | |
1293 | */ | |
9a736b6b | 1294 | |
39bec121 | 1295 | static void |
f1e7a2c9 NC |
1296 | tic54x_sect (arg) |
1297 | int arg; | |
39bec121 TW |
1298 | { |
1299 | ILLEGAL_WITHIN_STRUCT (); | |
1300 | ||
d0313fb7 | 1301 | /* Local labels are cleared when changing sections. */ |
39bec121 TW |
1302 | tic54x_clear_local_labels (0); |
1303 | ||
1304 | if (arg == 't') | |
1305 | s_text (0); | |
1306 | else if (arg == 'd') | |
1307 | s_data (0); | |
1308 | else | |
1309 | { | |
1310 | char *name = NULL; | |
1311 | int len; | |
f1e7a2c9 | 1312 | |
d0313fb7 | 1313 | /* If there are quotes, remove them. */ |
39bec121 | 1314 | if (*input_line_pointer == '"') |
9a736b6b NC |
1315 | { |
1316 | name = demand_copy_C_string (&len); | |
1317 | demand_empty_rest_of_line (); | |
1318 | name = strcpy (xmalloc (len + 10), name); | |
1319 | } | |
1aea3bb8 | 1320 | else |
9a736b6b NC |
1321 | { |
1322 | int c; | |
1323 | name = input_line_pointer; | |
1324 | c = get_symbol_end (); | |
6e917903 | 1325 | len = strlen(name); |
9a736b6b NC |
1326 | name = strcpy (xmalloc (len + 10), name); |
1327 | *input_line_pointer = c; | |
1328 | demand_empty_rest_of_line (); | |
1329 | } | |
6e917903 | 1330 | /* Make sure all named initialized sections flagged properly. If we |
f1e7a2c9 | 1331 | encounter instructions, we'll flag it with SEC_CODE as well. */ |
39bec121 TW |
1332 | strcat (name, ",\"w\"\n"); |
1333 | input_scrub_insert_line (name); | |
1334 | obj_coff_section (0); | |
1335 | ||
d0313fb7 | 1336 | /* If there was a line label, make sure that it gets assigned the proper |
9a736b6b NC |
1337 | section. This is for compatibility, even though the actual behavior |
1338 | is not explicitly defined. For consistency, we make .sect behave | |
1339 | like .usect, since that is probably what people expect. */ | |
39bec121 | 1340 | if (line_label != NULL) |
9a736b6b NC |
1341 | { |
1342 | S_SET_SEGMENT (line_label, now_seg); | |
1343 | symbol_set_frag (line_label, frag_now); | |
1344 | S_SET_VALUE (line_label, frag_now_fix ()); | |
1345 | if (S_GET_STORAGE_CLASS (line_label) != C_EXT) | |
1346 | S_SET_STORAGE_CLASS (line_label, C_LABEL); | |
1347 | } | |
39bec121 TW |
1348 | } |
1349 | } | |
1350 | ||
1aea3bb8 | 1351 | /* [symbol] .space space_in_bits |
39bec121 | 1352 | [symbol] .bes space_in_bits |
1aea3bb8 | 1353 | BES puts the symbol at the *last* word allocated |
39bec121 | 1354 | |
d0313fb7 | 1355 | cribbed from s_space. */ |
9a736b6b | 1356 | |
39bec121 | 1357 | static void |
f1e7a2c9 NC |
1358 | tic54x_space (arg) |
1359 | int arg; | |
39bec121 TW |
1360 | { |
1361 | expressionS exp; | |
1362 | char *p = 0; | |
1363 | int octets = 0; | |
1364 | long words; | |
1365 | int bits_per_byte = (OCTETS_PER_BYTE * 8); | |
1366 | int bit_offset = 0; | |
1367 | symbolS *label = line_label; | |
1368 | int bes = arg; | |
1369 | ||
1370 | ILLEGAL_WITHIN_STRUCT (); | |
1371 | ||
1372 | #ifdef md_flush_pending_output | |
1373 | md_flush_pending_output (); | |
1374 | #endif | |
1375 | ||
d0313fb7 | 1376 | /* Read the bit count. */ |
39bec121 TW |
1377 | expression (&exp); |
1378 | ||
d0313fb7 | 1379 | /* Some expressions are unresolvable until later in the assembly pass; |
39bec121 | 1380 | postpone until relaxation/fixup. we also have to postpone if a previous |
d0313fb7 | 1381 | partial allocation has not been completed yet. */ |
39bec121 TW |
1382 | if (exp.X_op != O_constant || frag_bit_offset (frag_now, now_seg) == -1) |
1383 | { | |
1384 | struct bit_info *bi = xmalloc (sizeof (struct bit_info)); | |
1385 | char *p; | |
1386 | ||
1387 | bi->seg = now_seg; | |
1388 | bi->type = bes; | |
1389 | bi->sym = label; | |
1aea3bb8 | 1390 | p = frag_var (rs_machine_dependent, |
9a736b6b NC |
1391 | 65536 * 2, 1, (relax_substateT) 0, |
1392 | make_expr_symbol (&exp), (offsetT) 0, | |
1393 | (char *) bi); | |
39bec121 | 1394 | if (p) |
9a736b6b | 1395 | *p = 0; |
39bec121 TW |
1396 | |
1397 | return; | |
1398 | } | |
1399 | ||
d0313fb7 NC |
1400 | /* Reduce the required size by any bit offsets currently left over |
1401 | from a previous .space/.bes/.field directive. */ | |
39bec121 TW |
1402 | bit_offset = frag_now->tc_frag_data; |
1403 | if (bit_offset != 0 && bit_offset < 16) | |
1404 | { | |
1405 | int spare_bits = bits_per_byte - bit_offset; | |
f1e7a2c9 | 1406 | |
39bec121 | 1407 | if (spare_bits >= exp.X_add_number) |
9a736b6b NC |
1408 | { |
1409 | /* Don't have to do anything; sufficient bits have already been | |
1410 | allocated; just point the label to the right place. */ | |
1411 | if (label != NULL) | |
1412 | { | |
1413 | symbol_set_frag (label, frag_now); | |
1414 | S_SET_VALUE (label, frag_now_fix () - 1); | |
1415 | label = NULL; | |
1416 | } | |
1417 | frag_now->tc_frag_data += exp.X_add_number; | |
1418 | goto getout; | |
1419 | } | |
39bec121 | 1420 | exp.X_add_number -= spare_bits; |
d0313fb7 | 1421 | /* Set the label to point to the first word allocated, which in this |
9a736b6b | 1422 | case is the previous word, which was only partially filled. */ |
39bec121 | 1423 | if (!bes && label != NULL) |
9a736b6b NC |
1424 | { |
1425 | symbol_set_frag (label, frag_now); | |
1426 | S_SET_VALUE (label, frag_now_fix () - 1); | |
1427 | label = NULL; | |
1428 | } | |
39bec121 | 1429 | } |
d0313fb7 | 1430 | /* Convert bits to bytes/words and octets, rounding up. */ |
39bec121 | 1431 | words = ((exp.X_add_number + bits_per_byte - 1) / bits_per_byte); |
d0313fb7 | 1432 | /* How many do we have left over? */ |
39bec121 TW |
1433 | bit_offset = exp.X_add_number % bits_per_byte; |
1434 | octets = words * OCTETS_PER_BYTE; | |
1435 | if (octets < 0) | |
1436 | { | |
1437 | as_warn (_(".space/.bes repeat count is negative, ignored")); | |
1438 | goto getout; | |
1439 | } | |
1440 | else if (octets == 0) | |
1441 | { | |
1442 | as_warn (_(".space/.bes repeat count is zero, ignored")); | |
1443 | goto getout; | |
1444 | } | |
1aea3bb8 | 1445 | |
39bec121 TW |
1446 | /* If we are in the absolute section, just bump the offset. */ |
1447 | if (now_seg == absolute_section) | |
1448 | { | |
1449 | abs_section_offset += words; | |
1450 | if (bes && label != NULL) | |
9a736b6b | 1451 | S_SET_VALUE (label, abs_section_offset - 1); |
39bec121 TW |
1452 | frag_now->tc_frag_data = bit_offset; |
1453 | goto getout; | |
1454 | } | |
1aea3bb8 | 1455 | |
39bec121 | 1456 | if (!need_pass_2) |
1aea3bb8 | 1457 | p = frag_var (rs_fill, 1, 1, |
9a736b6b NC |
1458 | (relax_substateT) 0, (symbolS *) 0, |
1459 | (offsetT) octets, (char *) 0); | |
39bec121 | 1460 | |
d0313fb7 | 1461 | /* Make note of how many bits of this word we've allocated so far. */ |
39bec121 TW |
1462 | frag_now->tc_frag_data = bit_offset; |
1463 | ||
d0313fb7 | 1464 | /* .bes puts label at *last* word allocated. */ |
39bec121 TW |
1465 | if (bes && label != NULL) |
1466 | { | |
1467 | symbol_set_frag (label, frag_now); | |
1aea3bb8 | 1468 | S_SET_VALUE (label, frag_now_fix () - 1); |
39bec121 | 1469 | } |
1aea3bb8 | 1470 | |
39bec121 TW |
1471 | if (p) |
1472 | *p = 0; | |
1473 | ||
1474 | getout: | |
1475 | ||
1476 | demand_empty_rest_of_line (); | |
1477 | } | |
1478 | ||
1aea3bb8 | 1479 | /* [symbol] .usect "section-name", size-in-words |
9a736b6b | 1480 | [, [blocking-flag] [, alignment-flag]] |
39bec121 | 1481 | |
33b7f697 | 1482 | Uninitialized section. |
39bec121 TW |
1483 | Non-zero blocking means that if the section would cross a page (128-word) |
1484 | boundary, it will be page-aligned. | |
1485 | Non-zero alignment aligns on a longword boundary. | |
1486 | ||
d0313fb7 | 1487 | Has no effect on the current section. */ |
9a736b6b | 1488 | |
1aea3bb8 | 1489 | static void |
f1e7a2c9 NC |
1490 | tic54x_usect (x) |
1491 | int x ATTRIBUTE_UNUSED; | |
39bec121 TW |
1492 | { |
1493 | char c; | |
1494 | char *name; | |
1495 | char *section_name; | |
1496 | char *p; | |
1497 | segT seg; | |
1498 | int size, blocking_flag, alignment_flag; | |
1499 | segT current_seg; | |
1500 | subsegT current_subseg; | |
1501 | flagword flags; | |
1502 | ||
1503 | ILLEGAL_WITHIN_STRUCT (); | |
1504 | ||
9a736b6b NC |
1505 | current_seg = now_seg; /* Save current seg. */ |
1506 | current_subseg = now_subseg; /* Save current subseg. */ | |
39bec121 TW |
1507 | |
1508 | if (*input_line_pointer == '"') | |
1509 | input_line_pointer++; | |
1510 | section_name = input_line_pointer; | |
1511 | c = get_symbol_end (); /* Get terminator. */ | |
1512 | input_line_pointer++; /* Skip null symbol terminator. */ | |
1513 | name = xmalloc (input_line_pointer - section_name + 1); | |
1514 | strcpy (name, section_name); | |
1515 | ||
1516 | if (*input_line_pointer == ',') | |
1517 | ++input_line_pointer; | |
1518 | else if (c != ',') | |
1519 | { | |
1520 | as_bad (_("Missing size argument")); | |
1521 | ignore_rest_of_line (); | |
1522 | return; | |
1523 | } | |
1524 | ||
1525 | size = get_absolute_expression (); | |
1526 | ||
d0313fb7 | 1527 | /* Read a possibly present third argument (blocking flag). */ |
39bec121 TW |
1528 | if (*input_line_pointer == ',') |
1529 | { | |
1530 | ++input_line_pointer; | |
1531 | if (*input_line_pointer != ',') | |
9a736b6b | 1532 | blocking_flag = get_absolute_expression (); |
39bec121 | 1533 | else |
9a736b6b | 1534 | blocking_flag = 0; |
39bec121 | 1535 | |
d0313fb7 | 1536 | /* Read a possibly present fourth argument (alignment flag). */ |
39bec121 | 1537 | if (*input_line_pointer == ',') |
9a736b6b NC |
1538 | { |
1539 | ++input_line_pointer; | |
1540 | alignment_flag = get_absolute_expression (); | |
1541 | } | |
39bec121 | 1542 | else |
9a736b6b | 1543 | alignment_flag = 0; |
39bec121 TW |
1544 | } |
1545 | else | |
1546 | blocking_flag = alignment_flag = 0; | |
1547 | ||
1548 | seg = subseg_new (name, 0); | |
1549 | flags = bfd_get_section_flags (stdoutput, seg) | SEC_ALLOC; | |
1550 | ||
1551 | if (alignment_flag) | |
1552 | { | |
d0313fb7 | 1553 | /* s_align eats end of line; restore it. */ |
39bec121 TW |
1554 | s_align_bytes (4); |
1555 | --input_line_pointer; | |
1556 | } | |
1557 | ||
1558 | if (line_label != NULL) | |
1559 | { | |
1560 | S_SET_SEGMENT (line_label, seg); | |
1561 | symbol_set_frag (line_label, frag_now); | |
1562 | S_SET_VALUE (line_label, frag_now_fix ()); | |
9a736b6b | 1563 | /* Set scl to label, since that's what TI does. */ |
39bec121 | 1564 | if (S_GET_STORAGE_CLASS (line_label) != C_EXT) |
9a736b6b | 1565 | S_SET_STORAGE_CLASS (line_label, C_LABEL); |
39bec121 TW |
1566 | } |
1567 | ||
1568 | seg_info (seg)->bss = 1; /* Uninitialized data. */ | |
1569 | ||
1aea3bb8 | 1570 | p = frag_var (rs_fill, 1, 1, |
9a736b6b NC |
1571 | (relax_substateT) 0, (symbolS *) line_label, |
1572 | size * OCTETS_PER_BYTE, (char *) 0); | |
39bec121 TW |
1573 | *p = 0; |
1574 | ||
1575 | if (blocking_flag) | |
ebe372c1 | 1576 | flags |= SEC_TIC54X_BLOCK; |
39bec121 TW |
1577 | |
1578 | if (!bfd_set_section_flags (stdoutput, seg, flags)) | |
1579 | as_warn ("Error setting flags for \"%s\": %s", name, | |
1580 | bfd_errmsg (bfd_get_error ())); | |
1581 | ||
1582 | subseg_set (current_seg, current_subseg); /* Restore current seg. */ | |
1583 | demand_empty_rest_of_line (); | |
1aea3bb8 | 1584 | } |
39bec121 TW |
1585 | |
1586 | static enum cpu_version | |
f1e7a2c9 NC |
1587 | lookup_version (ver) |
1588 | const char *ver; | |
39bec121 TW |
1589 | { |
1590 | enum cpu_version version = VNONE; | |
1aea3bb8 | 1591 | |
39bec121 TW |
1592 | if (ver[0] == '5' && ver[1] == '4') |
1593 | { | |
9a736b6b NC |
1594 | if (strlen (ver) == 3 |
1595 | && (ver[2] == '1' || ver[2] == '2' || ver[2] == '3' | |
1596 | || ver[2] == '5' || ver[2] == '8' || ver[2] == '9')) | |
1597 | version = ver[2] - '0'; | |
1598 | else if (strlen (ver) == 5 | |
3882b010 L |
1599 | && TOUPPER (ver[3]) == 'L' |
1600 | && TOUPPER (ver[4]) == 'P' | |
9a736b6b NC |
1601 | && (ver[2] == '5' || ver[2] == '6')) |
1602 | version = ver[2] - '0' + 10; | |
39bec121 TW |
1603 | } |
1604 | ||
1605 | return version; | |
1606 | } | |
1607 | ||
1608 | static void | |
f1e7a2c9 NC |
1609 | set_cpu (version) |
1610 | enum cpu_version version; | |
39bec121 TW |
1611 | { |
1612 | cpu = version; | |
1613 | if (version == V545LP || version == V546LP) | |
1614 | { | |
1615 | symbolS *symbolP = symbol_new ("__allow_lp", absolute_section, | |
9a736b6b | 1616 | (valueT) 1, &zero_address_frag); |
39bec121 TW |
1617 | SF_SET_LOCAL (symbolP); |
1618 | symbol_table_insert (symbolP); | |
1619 | } | |
1620 | } | |
1621 | ||
1aea3bb8 | 1622 | /* .version cpu-version |
39bec121 TW |
1623 | cpu-version may be one of the following: |
1624 | 541 | |
1625 | 542 | |
1626 | 543 | |
1627 | 545 | |
1628 | 545LP | |
1629 | 546LP | |
1630 | 548 | |
1631 | 549 | |
1632 | ||
d0313fb7 | 1633 | This is for compatibility only. It currently has no affect on assembly. */ |
39bec121 | 1634 | static int cpu_needs_set = 1; |
d0313fb7 | 1635 | |
1aea3bb8 | 1636 | static void |
f1e7a2c9 NC |
1637 | tic54x_version (x) |
1638 | int x ATTRIBUTE_UNUSED; | |
39bec121 TW |
1639 | { |
1640 | enum cpu_version version = VNONE; | |
1641 | enum cpu_version old_version = cpu; | |
1642 | int c; | |
1643 | char *ver; | |
1644 | ||
1645 | ILLEGAL_WITHIN_STRUCT (); | |
1646 | ||
1647 | SKIP_WHITESPACE (); | |
1648 | ver = input_line_pointer; | |
1aea3bb8 | 1649 | while (!is_end_of_line[(int) *input_line_pointer]) |
39bec121 TW |
1650 | ++input_line_pointer; |
1651 | c = *input_line_pointer; | |
1652 | *input_line_pointer = 0; | |
1aea3bb8 | 1653 | |
39bec121 TW |
1654 | version = lookup_version (ver); |
1655 | ||
1656 | if (cpu != VNONE && cpu != version) | |
1657 | as_warn (_("CPU version has already been set")); | |
1658 | ||
1659 | if (version == VNONE) | |
1660 | { | |
1661 | as_bad (_("Unrecognized version '%s'"), ver); | |
1662 | ignore_rest_of_line (); | |
1663 | return; | |
1664 | } | |
1665 | else if (assembly_begun && version != old_version) | |
1666 | { | |
1667 | as_bad (_("Changing of CPU version on the fly not supported")); | |
1668 | ignore_rest_of_line (); | |
1669 | return; | |
1670 | } | |
1671 | ||
1672 | set_cpu (version); | |
1673 | ||
1674 | *input_line_pointer = c; | |
1675 | demand_empty_rest_of_line (); | |
1676 | } | |
1677 | ||
d0313fb7 | 1678 | /* 'f' = float, 'x' = xfloat, 'd' = double, 'l' = ldouble. */ |
9a736b6b | 1679 | |
39bec121 | 1680 | static void |
f1e7a2c9 NC |
1681 | tic54x_float_cons (type) |
1682 | int type; | |
39bec121 TW |
1683 | { |
1684 | if (current_stag != 0) | |
d0313fb7 | 1685 | tic54x_struct_field ('f'); |
39bec121 TW |
1686 | |
1687 | #ifdef md_flush_pending_output | |
1688 | md_flush_pending_output (); | |
1689 | #endif | |
1aea3bb8 | 1690 | |
d0313fb7 | 1691 | /* Align to long word boundary (4 octets) unless it's ".xfloat". */ |
39bec121 TW |
1692 | if (type != 'x') |
1693 | { | |
1694 | frag_align (2, 0, 2); | |
d0313fb7 | 1695 | /* If there's a label, assign it to the first allocated word. */ |
39bec121 | 1696 | if (line_label != NULL) |
9a736b6b NC |
1697 | { |
1698 | symbol_set_frag (line_label, frag_now); | |
1699 | S_SET_VALUE (line_label, frag_now_fix ()); | |
1700 | } | |
39bec121 TW |
1701 | } |
1702 | ||
1703 | float_cons ('f'); | |
1704 | } | |
1705 | ||
1aea3bb8 | 1706 | /* The argument is capitalized if it should be zero-terminated |
39bec121 | 1707 | 's' is normal string with upper 8-bits zero-filled, 'p' is packed. |
5d6255fe | 1708 | Code copied from stringer, and slightly modified so that strings are packed |
d0313fb7 | 1709 | and encoded into the correct octets. */ |
9a736b6b | 1710 | |
39bec121 | 1711 | static void |
f1e7a2c9 NC |
1712 | tic54x_stringer (type) |
1713 | int type; | |
39bec121 | 1714 | { |
f1e7a2c9 | 1715 | unsigned int c; |
39bec121 TW |
1716 | char *start; |
1717 | int append_zero = type == 'S' || type == 'P'; | |
1718 | int packed = type == 'p' || type == 'P'; | |
d0313fb7 | 1719 | int last_char = -1; /* Packed strings need two bytes at a time to encode. */ |
39bec121 TW |
1720 | |
1721 | if (current_stag != NULL) | |
1722 | { | |
1723 | tic54x_struct_field ('*'); | |
1724 | return; | |
1725 | } | |
1726 | ||
1727 | #ifdef md_flush_pending_output | |
1728 | md_flush_pending_output (); | |
1729 | #endif | |
1730 | ||
1dab94dd | 1731 | c = ','; /* Do loop. */ |
39bec121 TW |
1732 | while (c == ',') |
1733 | { | |
1734 | SKIP_WHITESPACE (); | |
1735 | switch (*input_line_pointer) | |
1736 | { | |
9a736b6b NC |
1737 | default: |
1738 | { | |
1739 | unsigned short value = get_absolute_expression (); | |
1740 | FRAG_APPEND_1_CHAR ( value & 0xFF); | |
1741 | FRAG_APPEND_1_CHAR ((value >> 8) & 0xFF); | |
1742 | break; | |
1743 | } | |
39bec121 | 1744 | case '\"': |
9a736b6b | 1745 | ++input_line_pointer; /* -> 1st char of string. */ |
39bec121 TW |
1746 | start = input_line_pointer; |
1747 | while (is_a_char (c = next_char_of_string ())) | |
1748 | { | |
9a736b6b NC |
1749 | if (!packed) |
1750 | { | |
1751 | FRAG_APPEND_1_CHAR (c); | |
1752 | FRAG_APPEND_1_CHAR (0); | |
1753 | } | |
1754 | else | |
1755 | { | |
1756 | /* Packed strings are filled MS octet first. */ | |
1757 | if (last_char == -1) | |
1758 | last_char = c; | |
1759 | else | |
1760 | { | |
1761 | FRAG_APPEND_1_CHAR (c); | |
1762 | FRAG_APPEND_1_CHAR (last_char); | |
1763 | last_char = -1; | |
1764 | } | |
1765 | } | |
39bec121 TW |
1766 | } |
1767 | if (append_zero) | |
9a736b6b NC |
1768 | { |
1769 | if (packed && last_char != -1) | |
1770 | { | |
1771 | FRAG_APPEND_1_CHAR (0); | |
1772 | FRAG_APPEND_1_CHAR (last_char); | |
1773 | last_char = -1; | |
1774 | } | |
1775 | else | |
1776 | { | |
1777 | FRAG_APPEND_1_CHAR (0); | |
1778 | FRAG_APPEND_1_CHAR (0); | |
1779 | } | |
1780 | } | |
39bec121 TW |
1781 | know (input_line_pointer[-1] == '\"'); |
1782 | break; | |
1783 | } | |
1784 | SKIP_WHITESPACE (); | |
1785 | c = *input_line_pointer; | |
1786 | if (!is_end_of_line[c]) | |
9a736b6b | 1787 | ++input_line_pointer; |
39bec121 TW |
1788 | } |
1789 | ||
d0313fb7 | 1790 | /* Finish up any leftover packed string. */ |
39bec121 TW |
1791 | if (packed && last_char != -1) |
1792 | { | |
1793 | FRAG_APPEND_1_CHAR (0); | |
1794 | FRAG_APPEND_1_CHAR (last_char); | |
1795 | } | |
1796 | demand_empty_rest_of_line (); | |
1797 | } | |
1798 | ||
1799 | static void | |
f1e7a2c9 NC |
1800 | tic54x_p2align (arg) |
1801 | int arg ATTRIBUTE_UNUSED; | |
39bec121 TW |
1802 | { |
1803 | as_bad (_("p2align not supported on this target")); | |
1804 | } | |
1805 | ||
1806 | static void | |
f1e7a2c9 NC |
1807 | tic54x_align_words (arg) |
1808 | int arg; | |
39bec121 | 1809 | { |
d0313fb7 | 1810 | /* Only ".align" with no argument is allowed within .struct/.union. */ |
39bec121 TW |
1811 | int count = arg; |
1812 | ||
1aea3bb8 | 1813 | if (!is_end_of_line[(int) *input_line_pointer]) |
39bec121 TW |
1814 | { |
1815 | if (arg == 2) | |
9a736b6b | 1816 | as_warn (_("Argument to .even ignored")); |
39bec121 | 1817 | else |
9a736b6b | 1818 | count = get_absolute_expression (); |
39bec121 TW |
1819 | } |
1820 | ||
1821 | if (current_stag != NULL && arg == 128) | |
1822 | { | |
1823 | if (current_stag->current_bitfield_offset != 0) | |
9a736b6b NC |
1824 | { |
1825 | current_stag->current_bitfield_offset = 0; | |
1826 | ++abs_section_offset; | |
1827 | } | |
39bec121 TW |
1828 | demand_empty_rest_of_line (); |
1829 | return; | |
1830 | } | |
1831 | ||
1832 | ILLEGAL_WITHIN_STRUCT (); | |
1833 | ||
1834 | s_align_bytes (count << 1); | |
1835 | } | |
1836 | ||
d0313fb7 | 1837 | /* Initialize multiple-bit fields withing a single word of memory. */ |
9a736b6b | 1838 | |
39bec121 | 1839 | static void |
f1e7a2c9 NC |
1840 | tic54x_field (ignore) |
1841 | int ignore ATTRIBUTE_UNUSED; | |
39bec121 TW |
1842 | { |
1843 | expressionS exp; | |
1844 | int size = 16; | |
1845 | char *p; | |
1846 | valueT value; | |
1847 | symbolS *label = line_label; | |
1848 | ||
1849 | if (current_stag != NULL) | |
1850 | { | |
1851 | tic54x_struct_field ('.'); | |
1852 | return; | |
1853 | } | |
1854 | ||
1855 | input_line_pointer = parse_expression (input_line_pointer, &exp); | |
1856 | ||
1857 | if (*input_line_pointer == ',') | |
1858 | { | |
1859 | ++input_line_pointer; | |
1860 | size = get_absolute_expression (); | |
1861 | if (size < 1 || size > 32) | |
9a736b6b NC |
1862 | { |
1863 | as_bad (_("Invalid field size, must be from 1 to 32")); | |
1864 | ignore_rest_of_line (); | |
1865 | return; | |
1866 | } | |
39bec121 TW |
1867 | } |
1868 | ||
d0313fb7 | 1869 | /* Truncate values to the field width. */ |
39bec121 TW |
1870 | if (exp.X_op != O_constant) |
1871 | { | |
9a736b6b NC |
1872 | /* If the expression value is relocatable, the field size *must* |
1873 | be 16. */ | |
39bec121 | 1874 | if (size != 16) |
9a736b6b NC |
1875 | { |
1876 | as_bad (_("field size must be 16 when value is relocatable")); | |
1877 | ignore_rest_of_line (); | |
1878 | return; | |
1879 | } | |
39bec121 TW |
1880 | |
1881 | frag_now->tc_frag_data = 0; | |
1882 | emit_expr (&exp, 2); | |
1883 | } | |
1884 | else | |
1885 | { | |
1886 | unsigned long fmask = (size == 32) ? 0xFFFFFFFF : (1ul << size) - 1; | |
f1e7a2c9 | 1887 | |
39bec121 TW |
1888 | value = exp.X_add_number; |
1889 | exp.X_add_number &= fmask; | |
1aea3bb8 | 1890 | if (value != (valueT) exp.X_add_number) |
9a736b6b | 1891 | as_warn (_("field value truncated")); |
39bec121 | 1892 | value = exp.X_add_number; |
d0313fb7 | 1893 | /* Bits are stored MS first. */ |
39bec121 | 1894 | while (size >= 16) |
9a736b6b NC |
1895 | { |
1896 | frag_now->tc_frag_data = 0; | |
1897 | p = frag_more (2); | |
1898 | md_number_to_chars (p, (value >> (size - 16)) & 0xFFFF, 2); | |
1899 | size -= 16; | |
1900 | } | |
39bec121 | 1901 | if (size > 0) |
9a736b6b NC |
1902 | { |
1903 | int bit_offset = frag_bit_offset (frag_now, now_seg); | |
f1e7a2c9 | 1904 | |
9a736b6b NC |
1905 | fragS *alloc_frag = bit_offset_frag (frag_now, now_seg); |
1906 | if (bit_offset == -1) | |
1907 | { | |
1908 | struct bit_info *bi = xmalloc (sizeof (struct bit_info)); | |
1909 | /* We don't know the previous offset at this time, so store the | |
1910 | info we need and figure it out later. */ | |
1911 | expressionS size_exp; | |
f1e7a2c9 | 1912 | |
9a736b6b NC |
1913 | size_exp.X_op = O_constant; |
1914 | size_exp.X_add_number = size; | |
1915 | bi->seg = now_seg; | |
1916 | bi->type = TYPE_FIELD; | |
1917 | bi->value = value; | |
1918 | p = frag_var (rs_machine_dependent, | |
1919 | 4, 1, (relax_substateT) 0, | |
1920 | make_expr_symbol (&size_exp), (offsetT) 0, | |
1921 | (char *) bi); | |
1922 | goto getout; | |
1923 | } | |
1924 | else if (bit_offset == 0 || bit_offset + size > 16) | |
1925 | { | |
1926 | /* Align a new field. */ | |
1927 | p = frag_more (2); | |
1928 | frag_now->tc_frag_data = 0; | |
1929 | alloc_frag = frag_now; | |
1930 | } | |
1931 | else | |
1932 | { | |
1933 | /* Put the new value entirely within the existing one. */ | |
1934 | p = alloc_frag == frag_now ? | |
1935 | frag_now->fr_literal + frag_now_fix_octets () - 2 : | |
1936 | alloc_frag->fr_literal; | |
1937 | if (label != NULL) | |
1938 | { | |
1939 | symbol_set_frag (label, alloc_frag); | |
1940 | if (alloc_frag == frag_now) | |
1941 | S_SET_VALUE (label, frag_now_fix () - 1); | |
1942 | label = NULL; | |
1943 | } | |
1944 | } | |
1945 | value <<= 16 - alloc_frag->tc_frag_data - size; | |
1946 | ||
1947 | /* OR in existing value. */ | |
1948 | if (alloc_frag->tc_frag_data) | |
1949 | value |= ((unsigned short) p[1] << 8) | p[0]; | |
1950 | md_number_to_chars (p, value, 2); | |
1951 | alloc_frag->tc_frag_data += size; | |
1952 | if (alloc_frag->tc_frag_data == 16) | |
1953 | alloc_frag->tc_frag_data = 0; | |
1954 | } | |
39bec121 TW |
1955 | } |
1956 | getout: | |
1957 | demand_empty_rest_of_line (); | |
1958 | } | |
1959 | ||
1960 | /* Ideally, we want to check SEC_LOAD and SEC_HAS_CONTENTS, but those aren't | |
d0313fb7 | 1961 | available yet. seg_info ()->bss is the next best thing. */ |
9a736b6b | 1962 | |
39bec121 | 1963 | static int |
f1e7a2c9 NC |
1964 | tic54x_initialized_section (seg) |
1965 | segT seg; | |
39bec121 TW |
1966 | { |
1967 | return !seg_info (seg)->bss; | |
1968 | } | |
1969 | ||
1aea3bb8 | 1970 | /* .clink ["section name"] |
39bec121 TW |
1971 | |
1972 | Marks the section as conditionally linked (link only if contents are | |
1973 | referenced elsewhere. | |
1974 | Without a name, refers to the current initialized section. | |
d0313fb7 | 1975 | Name is required for uninitialized sections. */ |
9a736b6b | 1976 | |
39bec121 | 1977 | static void |
f1e7a2c9 NC |
1978 | tic54x_clink (ignored) |
1979 | int ignored ATTRIBUTE_UNUSED; | |
39bec121 TW |
1980 | { |
1981 | segT seg = now_seg; | |
1982 | ||
1983 | ILLEGAL_WITHIN_STRUCT (); | |
1984 | ||
1985 | if (*input_line_pointer == '\"') | |
1986 | { | |
1987 | char *section_name = ++input_line_pointer; | |
1988 | char *name; | |
f1e7a2c9 | 1989 | |
39bec121 | 1990 | while (is_a_char (next_char_of_string ())) |
9a736b6b | 1991 | ; |
39bec121 TW |
1992 | know (input_line_pointer[-1] == '\"'); |
1993 | input_line_pointer[-1] = 0; | |
1994 | name = xmalloc (input_line_pointer - section_name + 1); | |
1995 | strcpy (name, section_name); | |
1996 | ||
1997 | seg = bfd_get_section_by_name (stdoutput, name); | |
1998 | if (seg == NULL) | |
9a736b6b NC |
1999 | { |
2000 | as_bad (_("Unrecognized section '%s'"), section_name); | |
2001 | ignore_rest_of_line (); | |
2002 | return; | |
2003 | } | |
39bec121 TW |
2004 | } |
2005 | else | |
2006 | { | |
2007 | if (!tic54x_initialized_section (seg)) | |
9a736b6b NC |
2008 | { |
2009 | as_bad (_("Current section is unitialized, " | |
2010 | "section name required for .clink")); | |
2011 | ignore_rest_of_line (); | |
2012 | return; | |
2013 | } | |
39bec121 TW |
2014 | } |
2015 | ||
ebe372c1 | 2016 | seg->flags |= SEC_TIC54X_CLINK; |
39bec121 TW |
2017 | |
2018 | demand_empty_rest_of_line (); | |
2019 | } | |
2020 | ||
d0313fb7 | 2021 | /* Change the default include directory to be the current source file's |
39bec121 | 2022 | directory, instead of the current working directory. If DOT is non-zero, |
d0313fb7 | 2023 | set to "." instead. */ |
9a736b6b | 2024 | |
39bec121 | 2025 | static void |
f1e7a2c9 NC |
2026 | tic54x_set_default_include (dot) |
2027 | int dot; | |
39bec121 TW |
2028 | { |
2029 | char *dir = "."; | |
2030 | char *tmp = NULL; | |
1aea3bb8 | 2031 | |
39bec121 TW |
2032 | if (!dot) |
2033 | { | |
2034 | char *curfile; | |
2035 | unsigned lineno; | |
1aea3bb8 | 2036 | |
39bec121 | 2037 | as_where (&curfile, &lineno); |
1aea3bb8 | 2038 | dir = strcpy (xmalloc (strlen (curfile) + 1), curfile); |
39bec121 TW |
2039 | tmp = strrchr (dir, '/'); |
2040 | } | |
2041 | if (tmp != NULL) | |
2042 | { | |
2043 | int len; | |
f1e7a2c9 | 2044 | |
39bec121 TW |
2045 | *tmp = '\0'; |
2046 | len = strlen (dir); | |
2047 | if (include_dir_count == 0) | |
9a736b6b NC |
2048 | { |
2049 | include_dirs = (char **) xmalloc (sizeof (*include_dirs)); | |
2050 | include_dir_count = 1; | |
2051 | } | |
39bec121 TW |
2052 | include_dirs[0] = dir; |
2053 | if (len > include_dir_maxlen) | |
9a736b6b | 2054 | include_dir_maxlen = len; |
39bec121 TW |
2055 | } |
2056 | else if (include_dirs != NULL) | |
2057 | include_dirs[0] = "."; | |
2058 | } | |
2059 | ||
1aea3bb8 | 2060 | /* .include "filename" | filename |
39bec121 TW |
2061 | .copy "filename" | filename |
2062 | ||
1aea3bb8 | 2063 | FIXME 'include' file should be omitted from any output listing, |
39bec121 TW |
2064 | 'copy' should be included in any output listing |
2065 | FIXME -- prevent any included files from changing listing (compat only) | |
2066 | FIXME -- need to include source file directory in search path; what's a | |
2067 | good way to do this? | |
2068 | ||
d0313fb7 | 2069 | Entering/exiting included/copied file clears all local labels. */ |
9a736b6b | 2070 | |
39bec121 | 2071 | static void |
f1e7a2c9 NC |
2072 | tic54x_include (ignored) |
2073 | int ignored ATTRIBUTE_UNUSED; | |
39bec121 TW |
2074 | { |
2075 | char newblock[] = " .newblock\n"; | |
2076 | char *filename; | |
2077 | char *input; | |
2078 | int len, c = -1; | |
2079 | ||
2080 | ILLEGAL_WITHIN_STRUCT (); | |
1aea3bb8 | 2081 | |
39bec121 TW |
2082 | SKIP_WHITESPACE (); |
2083 | ||
2084 | if (*input_line_pointer == '"') | |
2085 | { | |
2086 | filename = demand_copy_C_string (&len); | |
2087 | demand_empty_rest_of_line (); | |
2088 | } | |
2089 | else | |
2090 | { | |
2091 | filename = input_line_pointer; | |
1aea3bb8 | 2092 | while (!is_end_of_line[(int) *input_line_pointer]) |
9a736b6b | 2093 | ++input_line_pointer; |
39bec121 TW |
2094 | c = *input_line_pointer; |
2095 | *input_line_pointer = '\0'; | |
1aea3bb8 | 2096 | filename = strcpy (xmalloc (strlen (filename) + 1), filename); |
39bec121 TW |
2097 | *input_line_pointer = c; |
2098 | demand_empty_rest_of_line (); | |
2099 | } | |
2100 | /* Insert a partial line with the filename (for the sake of s_include) | |
2101 | and a .newblock. | |
2102 | The included file will be inserted before the newblock, so that the | |
d0313fb7 | 2103 | newblock is executed after the included file is processed. */ |
39bec121 TW |
2104 | input = xmalloc (sizeof (newblock) + strlen (filename) + 4); |
2105 | sprintf (input, "\"%s\"\n%s", filename, newblock); | |
2106 | input_scrub_insert_line (input); | |
2107 | ||
2108 | tic54x_clear_local_labels (0); | |
2109 | ||
2110 | tic54x_set_default_include (0); | |
2111 | ||
2112 | s_include (0); | |
2113 | } | |
2114 | ||
2115 | static void | |
f1e7a2c9 NC |
2116 | tic54x_message (type) |
2117 | int type; | |
39bec121 TW |
2118 | { |
2119 | char *msg; | |
2120 | char c; | |
2121 | int len; | |
2122 | ||
2123 | ILLEGAL_WITHIN_STRUCT (); | |
2124 | ||
2125 | if (*input_line_pointer == '"') | |
2126 | msg = demand_copy_C_string (&len); | |
2127 | else | |
2128 | { | |
2129 | msg = input_line_pointer; | |
1aea3bb8 | 2130 | while (!is_end_of_line[(int) *input_line_pointer]) |
9a736b6b | 2131 | ++input_line_pointer; |
39bec121 TW |
2132 | c = *input_line_pointer; |
2133 | *input_line_pointer = 0; | |
2134 | msg = strcpy (xmalloc (strlen (msg) + 1), msg); | |
2135 | *input_line_pointer = c; | |
2136 | } | |
2137 | ||
2138 | switch (type) | |
2139 | { | |
2140 | case 'm': | |
2141 | as_tsktsk ("%s", msg); | |
2142 | break; | |
2143 | case 'w': | |
2144 | as_warn ("%s", msg); | |
2145 | break; | |
2146 | case 'e': | |
2147 | as_bad ("%s", msg); | |
2148 | break; | |
2149 | } | |
2150 | ||
2151 | demand_empty_rest_of_line (); | |
2152 | } | |
2153 | ||
1aea3bb8 | 2154 | /* .label <symbol> |
9a736b6b | 2155 | Define a special symbol that refers to the loadtime address rather than the |
39bec121 TW |
2156 | runtime address within the current section. |
2157 | ||
2158 | This symbol gets a special storage class so that when it is resolved, it is | |
2159 | resolved relative to the load address (lma) of the section rather than the | |
d0313fb7 | 2160 | run address (vma). */ |
9a736b6b | 2161 | |
39bec121 | 2162 | static void |
f1e7a2c9 NC |
2163 | tic54x_label (ignored) |
2164 | int ignored ATTRIBUTE_UNUSED; | |
39bec121 TW |
2165 | { |
2166 | char *name = input_line_pointer; | |
2167 | symbolS *symbolP; | |
2168 | int c; | |
2169 | ||
2170 | ILLEGAL_WITHIN_STRUCT (); | |
2171 | ||
2172 | c = get_symbol_end (); | |
2173 | symbolP = colon (name); | |
2174 | S_SET_STORAGE_CLASS (symbolP, C_STATLAB); | |
2175 | ||
2176 | *input_line_pointer = c; | |
2177 | demand_empty_rest_of_line (); | |
2178 | } | |
2179 | ||
d0313fb7 | 2180 | /* .mmregs |
9a736b6b NC |
2181 | Install all memory-mapped register names into the symbol table as |
2182 | absolute local symbols. */ | |
2183 | ||
39bec121 | 2184 | static void |
f1e7a2c9 NC |
2185 | tic54x_mmregs (ignored) |
2186 | int ignored ATTRIBUTE_UNUSED; | |
39bec121 TW |
2187 | { |
2188 | symbol *sym; | |
2189 | ||
2190 | ILLEGAL_WITHIN_STRUCT (); | |
2191 | ||
1aea3bb8 | 2192 | for (sym = (symbol *) mmregs; sym->name; sym++) |
39bec121 TW |
2193 | { |
2194 | symbolS *symbolP = symbol_new (sym->name, absolute_section, | |
9a736b6b | 2195 | (valueT) sym->value, &zero_address_frag); |
39bec121 TW |
2196 | SF_SET_LOCAL (symbolP); |
2197 | symbol_table_insert (symbolP); | |
2198 | } | |
2199 | } | |
2200 | ||
d0313fb7 | 2201 | /* .loop [count] |
9a736b6b NC |
2202 | Count defaults to 1024. */ |
2203 | ||
39bec121 | 2204 | static void |
f1e7a2c9 NC |
2205 | tic54x_loop (count) |
2206 | int count; | |
39bec121 TW |
2207 | { |
2208 | ILLEGAL_WITHIN_STRUCT (); | |
2209 | ||
2210 | SKIP_WHITESPACE (); | |
1aea3bb8 | 2211 | if (!is_end_of_line[(int) *input_line_pointer]) |
9a736b6b | 2212 | count = get_absolute_expression (); |
39bec121 TW |
2213 | |
2214 | do_repeat (count, "LOOP", "ENDLOOP"); | |
2215 | } | |
2216 | ||
d0313fb7 | 2217 | /* Normally, endloop gets eaten by the preceding loop. */ |
9a736b6b | 2218 | |
39bec121 | 2219 | static void |
f1e7a2c9 NC |
2220 | tic54x_endloop (ignore) |
2221 | int ignore ATTRIBUTE_UNUSED; | |
39bec121 TW |
2222 | { |
2223 | as_bad (_("ENDLOOP without corresponding LOOP")); | |
2224 | ignore_rest_of_line (); | |
2225 | } | |
2226 | ||
d0313fb7 | 2227 | /* .break [condition]. */ |
9a736b6b | 2228 | |
39bec121 | 2229 | static void |
f1e7a2c9 NC |
2230 | tic54x_break (ignore) |
2231 | int ignore ATTRIBUTE_UNUSED; | |
39bec121 TW |
2232 | { |
2233 | int cond = 1; | |
2234 | ||
2235 | ILLEGAL_WITHIN_STRUCT (); | |
2236 | ||
2237 | SKIP_WHITESPACE (); | |
1aea3bb8 | 2238 | if (!is_end_of_line[(int) *input_line_pointer]) |
9a736b6b NC |
2239 | cond = get_absolute_expression (); |
2240 | ||
39bec121 | 2241 | if (cond) |
9a736b6b | 2242 | end_repeat (substitution_line ? 1 : 0); |
39bec121 TW |
2243 | } |
2244 | ||
2245 | static void | |
f1e7a2c9 NC |
2246 | set_address_mode (mode) |
2247 | int mode; | |
39bec121 TW |
2248 | { |
2249 | amode = mode; | |
2250 | if (mode == far_mode) | |
2251 | { | |
1aea3bb8 | 2252 | symbolS *symbolP = symbol_new ("__allow_far", absolute_section, |
9a736b6b | 2253 | (valueT) 1, &zero_address_frag); |
39bec121 TW |
2254 | SF_SET_LOCAL (symbolP); |
2255 | symbol_table_insert (symbolP); | |
2256 | } | |
2257 | } | |
2258 | ||
2259 | static int address_mode_needs_set = 1; | |
f1e7a2c9 | 2260 | |
39bec121 | 2261 | static void |
f1e7a2c9 NC |
2262 | tic54x_address_mode (mode) |
2263 | int mode; | |
39bec121 | 2264 | { |
1aea3bb8 | 2265 | if (assembly_begun && amode != (unsigned) mode) |
39bec121 TW |
2266 | { |
2267 | as_bad (_("Mixing of normal and extended addressing not supported")); | |
2268 | ignore_rest_of_line (); | |
2269 | return; | |
2270 | } | |
2271 | if (mode == far_mode && cpu != VNONE && cpu != V548 && cpu != V549) | |
2272 | { | |
2273 | as_bad (_("Extended addressing not supported on the specified CPU")); | |
2274 | ignore_rest_of_line (); | |
2275 | return; | |
2276 | } | |
2277 | ||
2278 | set_address_mode (mode); | |
2279 | demand_empty_rest_of_line (); | |
2280 | } | |
2281 | ||
2282 | /* .sblock "section"|section [,...,"section"|section] | |
9a736b6b NC |
2283 | Designate initialized sections for blocking. */ |
2284 | ||
39bec121 | 2285 | static void |
f1e7a2c9 NC |
2286 | tic54x_sblock (ignore) |
2287 | int ignore ATTRIBUTE_UNUSED; | |
39bec121 TW |
2288 | { |
2289 | int c = ','; | |
2290 | ||
2291 | ILLEGAL_WITHIN_STRUCT (); | |
2292 | ||
2293 | while (c == ',') | |
2294 | { | |
2295 | segT seg; | |
2296 | char *name; | |
1aea3bb8 | 2297 | |
39bec121 | 2298 | if (*input_line_pointer == '"') |
9a736b6b NC |
2299 | { |
2300 | int len; | |
f1e7a2c9 | 2301 | |
9a736b6b NC |
2302 | name = demand_copy_C_string (&len); |
2303 | } | |
39bec121 | 2304 | else |
9a736b6b NC |
2305 | { |
2306 | char *section_name = input_line_pointer; | |
f1e7a2c9 | 2307 | |
9a736b6b NC |
2308 | c = get_symbol_end (); |
2309 | name = xmalloc (strlen (section_name) + 1); | |
2310 | strcpy (name, section_name); | |
2311 | *input_line_pointer = c; | |
2312 | } | |
39bec121 TW |
2313 | |
2314 | seg = bfd_get_section_by_name (stdoutput, name); | |
2315 | if (seg == NULL) | |
9a736b6b NC |
2316 | { |
2317 | as_bad (_("Unrecognized section '%s'"), name); | |
2318 | ignore_rest_of_line (); | |
2319 | return; | |
2320 | } | |
39bec121 | 2321 | else if (!tic54x_initialized_section (seg)) |
9a736b6b NC |
2322 | { |
2323 | as_bad (_(".sblock may be used for initialized sections only")); | |
2324 | ignore_rest_of_line (); | |
2325 | return; | |
2326 | } | |
ebe372c1 | 2327 | seg->flags |= SEC_TIC54X_BLOCK; |
39bec121 TW |
2328 | |
2329 | c = *input_line_pointer; | |
1aea3bb8 | 2330 | if (!is_end_of_line[(int) c]) |
9a736b6b | 2331 | ++input_line_pointer; |
39bec121 TW |
2332 | } |
2333 | ||
2334 | demand_empty_rest_of_line (); | |
2335 | } | |
2336 | ||
2337 | /* symbol .set value | |
1aea3bb8 | 2338 | symbol .equ value |
39bec121 TW |
2339 | |
2340 | value must be defined externals; no forward-referencing allowed | |
d0313fb7 | 2341 | symbols assigned with .set/.equ may not be redefined. */ |
9a736b6b | 2342 | |
39bec121 | 2343 | static void |
f1e7a2c9 NC |
2344 | tic54x_set (ignore) |
2345 | int ignore ATTRIBUTE_UNUSED; | |
39bec121 TW |
2346 | { |
2347 | symbolS *symbolP; | |
2348 | char *name; | |
2349 | ||
2350 | ILLEGAL_WITHIN_STRUCT (); | |
2351 | ||
2352 | if (!line_label) | |
2353 | { | |
2354 | as_bad (_("Symbol missing for .set/.equ")); | |
2355 | ignore_rest_of_line (); | |
2356 | return; | |
2357 | } | |
2358 | name = xstrdup (S_GET_NAME (line_label)); | |
2359 | line_label = NULL; | |
2360 | if ((symbolP = symbol_find (name)) == NULL | |
2361 | && (symbolP = md_undefined_symbol (name)) == NULL) | |
2362 | { | |
2363 | symbolP = symbol_new (name, absolute_section, 0, &zero_address_frag); | |
2364 | S_SET_STORAGE_CLASS (symbolP, C_STAT); | |
2365 | } | |
2366 | free (name); | |
2367 | S_SET_DATA_TYPE (symbolP, T_INT); | |
2368 | S_SET_SEGMENT (symbolP, absolute_section); | |
2369 | symbol_table_insert (symbolP); | |
2370 | pseudo_set (symbolP); | |
2371 | demand_empty_rest_of_line (); | |
2372 | } | |
2373 | ||
2374 | /* .fclist | |
2375 | .fcnolist | |
9a736b6b NC |
2376 | List false conditional blocks. */ |
2377 | ||
39bec121 | 2378 | static void |
f1e7a2c9 NC |
2379 | tic54x_fclist (show) |
2380 | int show; | |
39bec121 TW |
2381 | { |
2382 | if (show) | |
2383 | listing &= ~LISTING_NOCOND; | |
2384 | else | |
2385 | listing |= LISTING_NOCOND; | |
2386 | demand_empty_rest_of_line (); | |
2387 | } | |
2388 | ||
2389 | static void | |
f1e7a2c9 NC |
2390 | tic54x_sslist (show) |
2391 | int show; | |
39bec121 TW |
2392 | { |
2393 | ILLEGAL_WITHIN_STRUCT (); | |
2394 | ||
2395 | listing_sslist = show; | |
2396 | } | |
2397 | ||
1aea3bb8 | 2398 | /* .var SYM[,...,SYMN] |
9a736b6b NC |
2399 | Define a substitution string to be local to a macro. */ |
2400 | ||
39bec121 | 2401 | static void |
f1e7a2c9 NC |
2402 | tic54x_var (ignore) |
2403 | int ignore ATTRIBUTE_UNUSED; | |
39bec121 TW |
2404 | { |
2405 | static char empty[] = ""; | |
2406 | char *name; | |
2407 | int c; | |
2408 | ||
2409 | ILLEGAL_WITHIN_STRUCT (); | |
2410 | ||
2411 | if (macro_level == 0) | |
2412 | { | |
2413 | as_bad (_(".var may only be used within a macro definition")); | |
2414 | ignore_rest_of_line (); | |
2415 | return; | |
2416 | } | |
1aea3bb8 | 2417 | do |
39bec121 | 2418 | { |
3882b010 | 2419 | if (!ISALPHA (*input_line_pointer)) |
9a736b6b NC |
2420 | { |
2421 | as_bad (_("Substitution symbols must begin with a letter")); | |
2422 | ignore_rest_of_line (); | |
2423 | return; | |
2424 | } | |
39bec121 TW |
2425 | name = input_line_pointer; |
2426 | c = get_symbol_end (); | |
9a736b6b | 2427 | /* .var symbols start out with a null string. */ |
1aea3bb8 | 2428 | name = strcpy (xmalloc (strlen (name) + 1), name); |
39bec121 TW |
2429 | hash_insert (subsym_hash[macro_level], name, empty); |
2430 | *input_line_pointer = c; | |
2431 | if (c == ',') | |
9a736b6b NC |
2432 | { |
2433 | ++input_line_pointer; | |
2434 | if (is_end_of_line[(int) *input_line_pointer]) | |
2435 | c = *input_line_pointer; | |
2436 | } | |
39bec121 TW |
2437 | } |
2438 | while (c == ','); | |
2439 | ||
2440 | demand_empty_rest_of_line (); | |
2441 | } | |
2442 | ||
1aea3bb8 | 2443 | /* .mlib <macro library filename> |
39bec121 TW |
2444 | |
2445 | Macro libraries are archived (standard AR-format) text macro definitions | |
2446 | Expand the file and include it. | |
2447 | ||
d0313fb7 | 2448 | FIXME need to try the source file directory as well. */ |
9a736b6b | 2449 | |
39bec121 | 2450 | static void |
f1e7a2c9 NC |
2451 | tic54x_mlib (ignore) |
2452 | int ignore ATTRIBUTE_UNUSED; | |
39bec121 TW |
2453 | { |
2454 | char *filename; | |
2455 | char *path; | |
2456 | int len, i; | |
2457 | bfd *abfd, *mbfd; | |
2458 | ||
2459 | ILLEGAL_WITHIN_STRUCT (); | |
2460 | ||
9a736b6b | 2461 | /* Parse the filename. */ |
39bec121 TW |
2462 | if (*input_line_pointer == '"') |
2463 | { | |
2464 | if ((filename = demand_copy_C_string (&len)) == NULL) | |
9a736b6b | 2465 | return; |
39bec121 TW |
2466 | } |
2467 | else | |
2468 | { | |
2469 | SKIP_WHITESPACE (); | |
2470 | len = 0; | |
1aea3bb8 | 2471 | while (!is_end_of_line[(int) *input_line_pointer] |
3882b010 | 2472 | && !ISSPACE (*input_line_pointer)) |
9a736b6b NC |
2473 | { |
2474 | obstack_1grow (¬es, *input_line_pointer); | |
2475 | ++input_line_pointer; | |
2476 | ++len; | |
2477 | } | |
39bec121 TW |
2478 | obstack_1grow (¬es, '\0'); |
2479 | filename = obstack_finish (¬es); | |
2480 | } | |
2481 | demand_empty_rest_of_line (); | |
2482 | ||
2483 | tic54x_set_default_include (0); | |
2484 | path = xmalloc ((unsigned long) len + include_dir_maxlen + 5); | |
f1e7a2c9 | 2485 | |
1aea3bb8 | 2486 | for (i = 0; i < include_dir_count; i++) |
39bec121 TW |
2487 | { |
2488 | FILE *try; | |
f1e7a2c9 | 2489 | |
39bec121 TW |
2490 | strcpy (path, include_dirs[i]); |
2491 | strcat (path, "/"); | |
2492 | strcat (path, filename); | |
2493 | if ((try = fopen (path, "r")) != NULL) | |
9a736b6b NC |
2494 | { |
2495 | fclose (try); | |
2496 | break; | |
2497 | } | |
1aea3bb8 | 2498 | } |
f1e7a2c9 | 2499 | |
39bec121 TW |
2500 | if (i >= include_dir_count) |
2501 | { | |
2502 | free (path); | |
2503 | path = filename; | |
2504 | } | |
2505 | ||
2506 | /* FIXME: if path is found, malloc'd storage is not freed. Of course, this | |
2507 | happens all over the place, and since the assembler doesn't usually keep | |
9a736b6b | 2508 | running for a very long time, it really doesn't matter. */ |
39bec121 TW |
2509 | register_dependency (path); |
2510 | ||
d0313fb7 | 2511 | /* Expand all archive entries to temporary files and include them. */ |
39bec121 TW |
2512 | abfd = bfd_openr (path, NULL); |
2513 | if (!abfd) | |
2514 | { | |
885afe7b AM |
2515 | as_bad (_("can't open macro library file '%s' for reading: %s"), |
2516 | path, bfd_errmsg (bfd_get_error ())); | |
39bec121 TW |
2517 | ignore_rest_of_line (); |
2518 | return; | |
2519 | } | |
2520 | if (!bfd_check_format (abfd, bfd_archive)) | |
2521 | { | |
2522 | as_bad (_("File '%s' not in macro archive format"), path); | |
2523 | ignore_rest_of_line (); | |
2524 | return; | |
2525 | } | |
2526 | ||
d0313fb7 | 2527 | /* Open each BFD as binary (it should be straight ASCII text). */ |
39bec121 TW |
2528 | for (mbfd = bfd_openr_next_archived_file (abfd, NULL); |
2529 | mbfd != NULL; mbfd = bfd_openr_next_archived_file (abfd, mbfd)) | |
2530 | { | |
d0313fb7 | 2531 | /* Get a size at least as big as the archive member. */ |
39bec121 TW |
2532 | bfd_size_type size = bfd_get_size (mbfd); |
2533 | char *buf = xmalloc (size); | |
2534 | char *fname = tmpnam (NULL); | |
2535 | FILE *ftmp; | |
2536 | ||
d0313fb7 | 2537 | /* We're not sure how big it is, but it will be smaller than "size". */ |
0e1a166b | 2538 | bfd_bread (buf, size, mbfd); |
39bec121 | 2539 | |
1aea3bb8 | 2540 | /* Write to a temporary file, then use s_include to include it |
9a736b6b | 2541 | a bit of a hack. */ |
39bec121 | 2542 | ftmp = fopen (fname, "w+b"); |
1aea3bb8 NC |
2543 | fwrite ((void *) buf, size, 1, ftmp); |
2544 | if (buf[size - 1] != '\n') | |
9a736b6b | 2545 | fwrite ("\n", 1, 1, ftmp); |
39bec121 TW |
2546 | fclose (ftmp); |
2547 | free (buf); | |
2548 | input_scrub_insert_file (fname); | |
2549 | unlink (fname); | |
2550 | } | |
2551 | } | |
2552 | ||
1aea3bb8 | 2553 | const pseudo_typeS md_pseudo_table[] = |
39bec121 | 2554 | { |
9a736b6b NC |
2555 | { "algebraic", s_ignore , 0 }, |
2556 | { "align" , tic54x_align_words , 128 }, | |
6e917903 TW |
2557 | { "ascii" , tic54x_stringer , 'p' }, |
2558 | { "asciz" , tic54x_stringer , 'P' }, | |
9a736b6b NC |
2559 | { "even" , tic54x_align_words , 2 }, |
2560 | { "asg" , tic54x_asg , 0 }, | |
2561 | { "eval" , tic54x_eval , 0 }, | |
2562 | { "bss" , tic54x_bss , 0 }, | |
2563 | { "byte" , tic54x_cons , 'b' }, | |
2564 | { "ubyte" , tic54x_cons , 'B' }, | |
2565 | { "char" , tic54x_cons , 'c' }, | |
2566 | { "uchar" , tic54x_cons , 'C' }, | |
2567 | { "clink" , tic54x_clink , 0 }, | |
2568 | { "c_mode" , tic54x_address_mode , c_mode }, | |
2569 | { "copy" , tic54x_include , 'c' }, | |
2570 | { "include" , tic54x_include , 'i' }, | |
2571 | { "data" , tic54x_sect , 'd' }, | |
2572 | { "double" , tic54x_float_cons , 'd' }, | |
2573 | { "ldouble" , tic54x_float_cons , 'l' }, | |
2574 | { "drlist" , s_ignore , 0 }, | |
2575 | { "drnolist" , s_ignore , 0 }, | |
2576 | { "emsg" , tic54x_message , 'e' }, | |
2577 | { "mmsg" , tic54x_message , 'm' }, | |
2578 | { "wmsg" , tic54x_message , 'w' }, | |
9a736b6b NC |
2579 | { "far_mode" , tic54x_address_mode , far_mode }, |
2580 | { "fclist" , tic54x_fclist , 1 }, | |
2581 | { "fcnolist" , tic54x_fclist , 0 }, | |
2582 | { "field" , tic54x_field , -1 }, | |
2583 | { "float" , tic54x_float_cons , 'f' }, | |
2584 | { "xfloat" , tic54x_float_cons , 'x' }, | |
2585 | { "global" , tic54x_global , 'g' }, | |
2586 | { "def" , tic54x_global , 'd' }, | |
2587 | { "ref" , tic54x_global , 'r' }, | |
2588 | { "half" , tic54x_cons , 'h' }, | |
2589 | { "uhalf" , tic54x_cons , 'H' }, | |
2590 | { "short" , tic54x_cons , 's' }, | |
2591 | { "ushort" , tic54x_cons , 'S' }, | |
2592 | { "if" , s_if , (int) O_ne }, | |
2593 | { "elseif" , s_elseif , (int) O_ne }, | |
2594 | { "else" , s_else , 0 }, | |
2595 | { "endif" , s_endif , 0 }, | |
2596 | { "int" , tic54x_cons , 'i' }, | |
2597 | { "uint" , tic54x_cons , 'I' }, | |
2598 | { "word" , tic54x_cons , 'w' }, | |
2599 | { "uword" , tic54x_cons , 'W' }, | |
2600 | { "label" , tic54x_label , 0 }, /* Loadtime | |
2601 | address. */ | |
2602 | { "length" , s_ignore , 0 }, | |
2603 | { "width" , s_ignore , 0 }, | |
9a736b6b NC |
2604 | { "long" , tic54x_cons , 'l' }, |
2605 | { "ulong" , tic54x_cons , 'L' }, | |
2606 | { "xlong" , tic54x_cons , 'x' }, | |
2607 | { "loop" , tic54x_loop , 1024 }, | |
2608 | { "break" , tic54x_break , 0 }, | |
2609 | { "endloop" , tic54x_endloop , 0 }, | |
2610 | { "mlib" , tic54x_mlib , 0 }, | |
2611 | { "mlist" , s_ignore , 0 }, | |
2612 | { "mnolist" , s_ignore , 0 }, | |
2613 | { "mmregs" , tic54x_mmregs , 0 }, | |
2614 | { "newblock" , tic54x_clear_local_labels, 0 }, | |
2615 | { "option" , s_ignore , 0 }, | |
2616 | { "p2align" , tic54x_p2align , 0 }, | |
9a736b6b NC |
2617 | { "sblock" , tic54x_sblock , 0 }, |
2618 | { "sect" , tic54x_sect , '*' }, | |
2619 | { "set" , tic54x_set , 0 }, | |
2620 | { "equ" , tic54x_set , 0 }, | |
2621 | { "space" , tic54x_space , 0 }, | |
2622 | { "bes" , tic54x_space , 1 }, | |
2623 | { "sslist" , tic54x_sslist , 1 }, | |
2624 | { "ssnolist" , tic54x_sslist , 0 }, | |
2625 | { "string" , tic54x_stringer , 's' }, | |
2626 | { "pstring" , tic54x_stringer , 'p' }, | |
2627 | { "struct" , tic54x_struct , 0 }, | |
2628 | { "tag" , tic54x_tag , 0 }, | |
2629 | { "endstruct", tic54x_endstruct , 0 }, | |
2630 | { "tab" , s_ignore , 0 }, | |
2631 | { "text" , tic54x_sect , 't' }, | |
9a736b6b NC |
2632 | { "union" , tic54x_struct , 1 }, |
2633 | { "endunion" , tic54x_endstruct , 1 }, | |
2634 | { "usect" , tic54x_usect , 0 }, | |
2635 | { "var" , tic54x_var , 0 }, | |
2636 | { "version" , tic54x_version , 0 }, | |
2637 | {0 , 0 , 0 } | |
39bec121 TW |
2638 | }; |
2639 | ||
39bec121 TW |
2640 | int |
2641 | md_parse_option (c, arg) | |
1aea3bb8 NC |
2642 | int c; |
2643 | char *arg; | |
39bec121 TW |
2644 | { |
2645 | switch (c) | |
2646 | { | |
2647 | default: | |
2648 | return 0; | |
2649 | case OPTION_COFF_VERSION: | |
2650 | { | |
9a736b6b | 2651 | int version = atoi (arg); |
f1e7a2c9 | 2652 | |
9a736b6b NC |
2653 | if (version != 0 && version != 1 && version != 2) |
2654 | as_fatal (_("Bad COFF version '%s'"), arg); | |
2655 | /* FIXME -- not yet implemented. */ | |
2656 | break; | |
39bec121 TW |
2657 | } |
2658 | case OPTION_CPU_VERSION: | |
2659 | { | |
9a736b6b NC |
2660 | cpu = lookup_version (arg); |
2661 | cpu_needs_set = 1; | |
2662 | if (cpu == VNONE) | |
2663 | as_fatal (_("Bad CPU version '%s'"), arg); | |
2664 | break; | |
39bec121 TW |
2665 | } |
2666 | case OPTION_ADDRESS_MODE: | |
2667 | amode = far_mode; | |
2668 | address_mode_needs_set = 1; | |
2669 | break; | |
2670 | case OPTION_STDERR_TO_FILE: | |
2671 | { | |
9a736b6b NC |
2672 | char *filename = arg; |
2673 | FILE *fp = fopen (filename, "w+"); | |
f1e7a2c9 | 2674 | |
9a736b6b NC |
2675 | if (fp == NULL) |
2676 | as_fatal (_("Can't redirect stderr to the file '%s'"), filename); | |
2677 | fclose (fp); | |
2678 | if ((fp = freopen (filename, "w+", stderr)) == NULL) | |
2679 | as_fatal (_("Can't redirect stderr to the file '%s'"), filename); | |
2680 | break; | |
39bec121 TW |
2681 | } |
2682 | } | |
2683 | ||
2684 | return 1; | |
2685 | } | |
2686 | ||
1aea3bb8 | 2687 | /* Create a "local" substitution string hash table for a new macro level |
39bec121 TW |
2688 | Some docs imply that macros have to use .newblock in order to be able |
2689 | to re-use a local label. We effectively do an automatic .newblock by | |
d0313fb7 | 2690 | deleting the local label hash between macro invocations. */ |
9a736b6b | 2691 | |
1aea3bb8 | 2692 | void |
39bec121 TW |
2693 | tic54x_macro_start () |
2694 | { | |
2695 | ++macro_level; | |
2696 | subsym_hash[macro_level] = hash_new (); | |
2697 | local_label_hash[macro_level] = hash_new (); | |
2698 | } | |
2699 | ||
2700 | void | |
4962e196 JB |
2701 | tic54x_macro_info (macro) |
2702 | const macro_entry *macro; | |
39bec121 | 2703 | { |
4962e196 | 2704 | const formal_entry *entry; |
39bec121 | 2705 | |
d0313fb7 | 2706 | /* Put the formal args into the substitution symbol table. */ |
39bec121 TW |
2707 | for (entry = macro->formals; entry; entry = entry->next) |
2708 | { | |
2709 | char *name = strncpy (xmalloc (entry->name.len + 1), | |
9a736b6b | 2710 | entry->name.ptr, entry->name.len); |
39bec121 | 2711 | char *value = strncpy (xmalloc (entry->actual.len + 1), |
9a736b6b | 2712 | entry->actual.ptr, entry->actual.len); |
f1e7a2c9 | 2713 | |
39bec121 TW |
2714 | name[entry->name.len] = '\0'; |
2715 | value[entry->actual.len] = '\0'; | |
2716 | hash_insert (subsym_hash[macro_level], name, value); | |
2717 | } | |
2718 | } | |
2719 | ||
d0313fb7 | 2720 | /* Get rid of this macro's .var's, arguments, and local labels. */ |
9a736b6b | 2721 | |
39bec121 TW |
2722 | void |
2723 | tic54x_macro_end () | |
2724 | { | |
2725 | hash_die (subsym_hash[macro_level]); | |
2726 | subsym_hash[macro_level] = NULL; | |
2727 | hash_die (local_label_hash[macro_level]); | |
2728 | local_label_hash[macro_level] = NULL; | |
2729 | --macro_level; | |
2730 | } | |
2731 | ||
2732 | static int | |
f1e7a2c9 NC |
2733 | subsym_symlen (a, ignore) |
2734 | char *a; | |
2735 | char *ignore ATTRIBUTE_UNUSED; | |
39bec121 TW |
2736 | { |
2737 | return strlen (a); | |
2738 | } | |
2739 | ||
d0313fb7 | 2740 | /* Compare symbol A to string B. */ |
9a736b6b | 2741 | |
39bec121 | 2742 | static int |
f1e7a2c9 NC |
2743 | subsym_symcmp (a, b) |
2744 | char *a; | |
2745 | char *b; | |
39bec121 TW |
2746 | { |
2747 | return strcmp (a, b); | |
2748 | } | |
2749 | ||
33b7f697 | 2750 | /* Return the index of the first occurrence of B in A, or zero if none |
d0313fb7 | 2751 | assumes b is an integer char value as a string. Index is one-based. */ |
9a736b6b | 2752 | |
39bec121 | 2753 | static int |
f1e7a2c9 NC |
2754 | subsym_firstch (a, b) |
2755 | char *a; | |
2756 | char *b; | |
39bec121 TW |
2757 | { |
2758 | int val = atoi (b); | |
2759 | char *tmp = strchr (a, val); | |
1aea3bb8 | 2760 | |
39bec121 TW |
2761 | return tmp ? tmp - a + 1 : 0; |
2762 | } | |
2763 | ||
d0313fb7 | 2764 | /* Similar to firstch, but returns index of last occurrence of B in A. */ |
9a736b6b | 2765 | |
39bec121 | 2766 | static int |
f1e7a2c9 NC |
2767 | subsym_lastch (a, b) |
2768 | char *a; | |
2769 | char *b; | |
39bec121 TW |
2770 | { |
2771 | int val = atoi (b); | |
2772 | char *tmp = strrchr (a, val); | |
2773 | ||
2774 | return tmp ? tmp - a + 1 : 0; | |
2775 | } | |
2776 | ||
d0313fb7 | 2777 | /* Returns 1 if string A is defined in the symbol table (NOT the substitution |
9a736b6b NC |
2778 | symbol table). */ |
2779 | ||
39bec121 | 2780 | static int |
f1e7a2c9 NC |
2781 | subsym_isdefed (a, ignore) |
2782 | char *a; | |
2783 | char *ignore ATTRIBUTE_UNUSED; | |
39bec121 TW |
2784 | { |
2785 | symbolS *symbolP = symbol_find (a); | |
2786 | ||
2787 | return symbolP != NULL; | |
2788 | } | |
2789 | ||
d0313fb7 | 2790 | /* Assign first member of comma-separated list B (e.g. "1,2,3") to the symbol |
39bec121 | 2791 | A, or zero if B is a null string. Both arguments *must* be substitution |
d0313fb7 | 2792 | symbols, unsubstituted. */ |
9a736b6b | 2793 | |
39bec121 | 2794 | static int |
f1e7a2c9 NC |
2795 | subsym_ismember (sym, list) |
2796 | char *sym; | |
2797 | char *list; | |
39bec121 TW |
2798 | { |
2799 | char *elem, *ptr, *listv; | |
2800 | ||
2801 | if (!list) | |
2802 | return 0; | |
2803 | ||
2804 | listv = subsym_lookup (list, macro_level); | |
2805 | if (!listv) | |
2806 | { | |
2807 | as_bad (_("Undefined substitution symbol '%s'"), list); | |
2808 | ignore_rest_of_line (); | |
2809 | return 0; | |
2810 | } | |
2811 | ||
1aea3bb8 | 2812 | ptr = elem = xmalloc (strlen (listv) + 1); |
39bec121 TW |
2813 | strcpy (elem, listv); |
2814 | while (*ptr && *ptr != ',') | |
2815 | ++ptr; | |
2816 | *ptr++ = 0; | |
2817 | ||
d0313fb7 | 2818 | subsym_create_or_replace (sym, elem); |
39bec121 | 2819 | |
d0313fb7 | 2820 | /* Reassign the list. */ |
39bec121 | 2821 | subsym_create_or_replace (list, ptr); |
1aea3bb8 | 2822 | |
d0313fb7 | 2823 | /* Assume this value, docs aren't clear. */ |
39bec121 TW |
2824 | return *list != 0; |
2825 | } | |
2826 | ||
d0313fb7 | 2827 | /* Return zero if not a constant; otherwise: |
39bec121 TW |
2828 | 1 if binary |
2829 | 2 if octal | |
2830 | 3 if hexadecimal | |
2831 | 4 if character | |
d0313fb7 | 2832 | 5 if decimal. */ |
9a736b6b | 2833 | |
39bec121 | 2834 | static int |
f1e7a2c9 NC |
2835 | subsym_iscons (a, ignore) |
2836 | char *a; | |
2837 | char *ignore ATTRIBUTE_UNUSED; | |
39bec121 TW |
2838 | { |
2839 | expressionS exp; | |
2840 | ||
2841 | parse_expression (a, &exp); | |
2842 | ||
2843 | if (exp.X_op == O_constant) | |
2844 | { | |
2845 | int len = strlen (a); | |
2846 | ||
3882b010 | 2847 | switch (TOUPPER (a[len - 1])) |
9a736b6b NC |
2848 | { |
2849 | case 'B': | |
2850 | return 1; | |
2851 | case 'Q': | |
2852 | return 2; | |
2853 | case 'H': | |
2854 | return 3; | |
2855 | case '\'': | |
2856 | return 4; | |
2857 | default: | |
2858 | break; | |
2859 | } | |
d0313fb7 | 2860 | /* No suffix; either octal, hex, or decimal. */ |
39bec121 | 2861 | if (*a == '0' && len > 1) |
9a736b6b | 2862 | { |
3882b010 | 2863 | if (TOUPPER (a[1]) == 'X') |
9a736b6b NC |
2864 | return 3; |
2865 | return 2; | |
2866 | } | |
39bec121 TW |
2867 | return 5; |
2868 | } | |
2869 | ||
2870 | return 0; | |
2871 | } | |
2872 | ||
d0313fb7 | 2873 | /* Return 1 if A is a valid symbol name. Expects string input. */ |
9a736b6b | 2874 | |
39bec121 | 2875 | static int |
f1e7a2c9 NC |
2876 | subsym_isname (a, ignore) |
2877 | char *a; | |
2878 | char *ignore ATTRIBUTE_UNUSED; | |
39bec121 TW |
2879 | { |
2880 | if (!is_name_beginner (*a)) | |
2881 | return 0; | |
2882 | while (*a) | |
2883 | { | |
2884 | if (!is_part_of_name (*a)) | |
9a736b6b | 2885 | return 0; |
39bec121 TW |
2886 | ++a; |
2887 | } | |
2888 | return 1; | |
2889 | } | |
2890 | ||
d0313fb7 | 2891 | /* Return whether the string is a register; accepts ar0-7, unless .mmregs has |
39bec121 | 2892 | been seen; if so, recognize any memory-mapped register. |
d0313fb7 | 2893 | Note this does not recognize "A" or "B" accumulators. */ |
9a736b6b | 2894 | |
39bec121 | 2895 | static int |
f1e7a2c9 NC |
2896 | subsym_isreg (a, ignore) |
2897 | char *a; | |
2898 | char *ignore ATTRIBUTE_UNUSED; | |
39bec121 TW |
2899 | { |
2900 | if (hash_find (reg_hash, a)) | |
2901 | return 1; | |
2902 | if (hash_find (mmreg_hash, a)) | |
2903 | return 1; | |
2904 | return 0; | |
2905 | } | |
2906 | ||
33b7f697 | 2907 | /* Return the structure size, given the stag. */ |
9a736b6b | 2908 | |
39bec121 | 2909 | static int |
f1e7a2c9 NC |
2910 | subsym_structsz (name, ignore) |
2911 | char *name; | |
2912 | char *ignore ATTRIBUTE_UNUSED; | |
39bec121 | 2913 | { |
1aea3bb8 | 2914 | struct stag *stag = (struct stag *) hash_find (stag_hash, name); |
f1e7a2c9 | 2915 | |
39bec121 TW |
2916 | if (stag) |
2917 | return stag->size; | |
2918 | ||
2919 | return 0; | |
2920 | } | |
2921 | ||
2922 | /* If anybody actually uses this, they can fix it :) | |
2923 | FIXME I'm not sure what the "reference point" of a structure is. It might | |
2924 | be either the initial offset given .struct, or it may be the offset of the | |
2925 | structure within another structure, or it might be something else | |
2926 | altogether. since the TI assembler doesn't seem to ever do anything but | |
d0313fb7 | 2927 | return zero, we punt and return zero. */ |
9a736b6b | 2928 | |
39bec121 | 2929 | static int |
f1e7a2c9 NC |
2930 | subsym_structacc (stag_name, ignore) |
2931 | char *stag_name ATTRIBUTE_UNUSED; | |
2932 | char *ignore ATTRIBUTE_UNUSED; | |
39bec121 TW |
2933 | { |
2934 | return 0; | |
2935 | } | |
2936 | ||
2937 | static float | |
2938 | math_ceil (arg1, ignore) | |
1aea3bb8 NC |
2939 | float arg1; |
2940 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 2941 | { |
1aea3bb8 | 2942 | return (float) ceil (arg1); |
39bec121 | 2943 | } |
d0313fb7 | 2944 | |
39bec121 TW |
2945 | static float |
2946 | math_cvi (arg1, ignore) | |
1aea3bb8 NC |
2947 | float arg1; |
2948 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 2949 | { |
1aea3bb8 | 2950 | return (int) arg1; |
39bec121 | 2951 | } |
d0313fb7 | 2952 | |
39bec121 TW |
2953 | static float |
2954 | math_floor (arg1, ignore) | |
1aea3bb8 NC |
2955 | float arg1; |
2956 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 2957 | { |
1aea3bb8 | 2958 | return (float) floor (arg1); |
39bec121 | 2959 | } |
d0313fb7 | 2960 | |
39bec121 | 2961 | static float |
f1e7a2c9 NC |
2962 | math_fmod (arg1, arg2) |
2963 | float arg1; | |
2964 | float arg2; | |
39bec121 | 2965 | { |
1aea3bb8 | 2966 | return (int) arg1 % (int) arg2; |
39bec121 | 2967 | } |
d0313fb7 | 2968 | |
39bec121 TW |
2969 | static float |
2970 | math_int (arg1, ignore) | |
1aea3bb8 NC |
2971 | float arg1; |
2972 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 2973 | { |
1aea3bb8 | 2974 | return ((float) ((int) arg1)) == arg1; |
39bec121 | 2975 | } |
d0313fb7 | 2976 | |
39bec121 TW |
2977 | static float |
2978 | math_round (arg1, ignore) | |
1aea3bb8 NC |
2979 | float arg1; |
2980 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 2981 | { |
1aea3bb8 | 2982 | return arg1 > 0 ? (int) (arg1 + 0.5) : (int) (arg1 - 0.5); |
39bec121 | 2983 | } |
d0313fb7 | 2984 | |
39bec121 TW |
2985 | static float |
2986 | math_sgn (arg1, ignore) | |
1aea3bb8 NC |
2987 | float arg1; |
2988 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 TW |
2989 | { |
2990 | return (arg1 < 0) ? -1 : (arg1 ? 1 : 0); | |
2991 | } | |
d0313fb7 | 2992 | |
39bec121 TW |
2993 | static float |
2994 | math_trunc (arg1, ignore) | |
1aea3bb8 NC |
2995 | float arg1; |
2996 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 2997 | { |
1aea3bb8 | 2998 | return (int) arg1; |
39bec121 TW |
2999 | } |
3000 | ||
3001 | static float | |
3002 | math_acos (arg1, ignore) | |
1aea3bb8 NC |
3003 | float arg1; |
3004 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 3005 | { |
1aea3bb8 | 3006 | return (float) acos (arg1); |
39bec121 | 3007 | } |
d0313fb7 | 3008 | |
39bec121 TW |
3009 | static float |
3010 | math_asin (arg1, ignore) | |
1aea3bb8 NC |
3011 | float arg1; |
3012 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 3013 | { |
1aea3bb8 | 3014 | return (float) asin (arg1); |
39bec121 | 3015 | } |
d0313fb7 | 3016 | |
39bec121 TW |
3017 | static float |
3018 | math_atan (arg1, ignore) | |
1aea3bb8 NC |
3019 | float arg1; |
3020 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 3021 | { |
1aea3bb8 | 3022 | return (float) atan (arg1); |
39bec121 | 3023 | } |
d0313fb7 | 3024 | |
39bec121 | 3025 | static float |
f1e7a2c9 NC |
3026 | math_atan2 (arg1, arg2) |
3027 | float arg1; | |
3028 | float arg2; | |
39bec121 | 3029 | { |
1aea3bb8 | 3030 | return (float) atan2 (arg1, arg2); |
39bec121 | 3031 | } |
d0313fb7 | 3032 | |
39bec121 TW |
3033 | static float |
3034 | math_cosh (arg1, ignore) | |
1aea3bb8 NC |
3035 | float arg1; |
3036 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 3037 | { |
1aea3bb8 | 3038 | return (float) cosh (arg1); |
39bec121 | 3039 | } |
d0313fb7 | 3040 | |
39bec121 TW |
3041 | static float |
3042 | math_cos (arg1, ignore) | |
1aea3bb8 NC |
3043 | float arg1; |
3044 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 3045 | { |
1aea3bb8 | 3046 | return (float) cos (arg1); |
39bec121 | 3047 | } |
d0313fb7 | 3048 | |
39bec121 TW |
3049 | static float |
3050 | math_cvf (arg1, ignore) | |
1aea3bb8 NC |
3051 | float arg1; |
3052 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 3053 | { |
1aea3bb8 | 3054 | return (float) arg1; |
39bec121 | 3055 | } |
d0313fb7 | 3056 | |
39bec121 TW |
3057 | static float |
3058 | math_exp (arg1, ignore) | |
1aea3bb8 NC |
3059 | float arg1; |
3060 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 3061 | { |
1aea3bb8 | 3062 | return (float) exp (arg1); |
39bec121 | 3063 | } |
d0313fb7 | 3064 | |
39bec121 TW |
3065 | static float |
3066 | math_fabs (arg1, ignore) | |
1aea3bb8 NC |
3067 | float arg1; |
3068 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 3069 | { |
1aea3bb8 | 3070 | return (float) fabs (arg1); |
39bec121 | 3071 | } |
d0313fb7 NC |
3072 | |
3073 | /* expr1 * 2^expr2. */ | |
9a736b6b | 3074 | |
39bec121 | 3075 | static float |
f1e7a2c9 NC |
3076 | math_ldexp (arg1, arg2) |
3077 | float arg1; | |
3078 | float arg2; | |
39bec121 | 3079 | { |
1aea3bb8 | 3080 | return arg1 * (float) pow (2.0, arg2); |
39bec121 | 3081 | } |
d0313fb7 | 3082 | |
39bec121 TW |
3083 | static float |
3084 | math_log10 (arg1, ignore) | |
1aea3bb8 NC |
3085 | float arg1; |
3086 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 3087 | { |
1aea3bb8 | 3088 | return (float) log10 (arg1); |
39bec121 | 3089 | } |
d0313fb7 | 3090 | |
39bec121 TW |
3091 | static float |
3092 | math_log (arg1, ignore) | |
1aea3bb8 NC |
3093 | float arg1; |
3094 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 3095 | { |
1aea3bb8 | 3096 | return (float) log (arg1); |
39bec121 | 3097 | } |
d0313fb7 | 3098 | |
39bec121 | 3099 | static float |
f1e7a2c9 NC |
3100 | math_max (arg1, arg2) |
3101 | float arg1; | |
3102 | float arg2; | |
39bec121 TW |
3103 | { |
3104 | return (arg1 > arg2) ? arg1 : arg2; | |
3105 | } | |
d0313fb7 | 3106 | |
39bec121 | 3107 | static float |
f1e7a2c9 NC |
3108 | math_min (arg1, arg2) |
3109 | float arg1; | |
3110 | float arg2; | |
39bec121 TW |
3111 | { |
3112 | return (arg1 < arg2) ? arg1 : arg2; | |
3113 | } | |
d0313fb7 | 3114 | |
39bec121 | 3115 | static float |
f1e7a2c9 NC |
3116 | math_pow (arg1, arg2) |
3117 | float arg1; | |
3118 | float arg2; | |
39bec121 | 3119 | { |
1aea3bb8 | 3120 | return (float) pow (arg1, arg2); |
39bec121 | 3121 | } |
d0313fb7 | 3122 | |
39bec121 TW |
3123 | static float |
3124 | math_sin (arg1, ignore) | |
1aea3bb8 NC |
3125 | float arg1; |
3126 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 3127 | { |
1aea3bb8 | 3128 | return (float) sin (arg1); |
39bec121 | 3129 | } |
d0313fb7 | 3130 | |
39bec121 TW |
3131 | static float |
3132 | math_sinh (arg1, ignore) | |
1aea3bb8 NC |
3133 | float arg1; |
3134 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 3135 | { |
1aea3bb8 | 3136 | return (float) sinh (arg1); |
39bec121 | 3137 | } |
d0313fb7 | 3138 | |
39bec121 TW |
3139 | static float |
3140 | math_sqrt (arg1, ignore) | |
1aea3bb8 NC |
3141 | float arg1; |
3142 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 3143 | { |
1aea3bb8 | 3144 | return (float) sqrt (arg1); |
39bec121 | 3145 | } |
d0313fb7 | 3146 | |
39bec121 TW |
3147 | static float |
3148 | math_tan (arg1, ignore) | |
1aea3bb8 NC |
3149 | float arg1; |
3150 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 3151 | { |
1aea3bb8 | 3152 | return (float) tan (arg1); |
39bec121 | 3153 | } |
d0313fb7 | 3154 | |
39bec121 TW |
3155 | static float |
3156 | math_tanh (arg1, ignore) | |
1aea3bb8 NC |
3157 | float arg1; |
3158 | float ignore ATTRIBUTE_UNUSED; | |
39bec121 | 3159 | { |
1aea3bb8 | 3160 | return (float) tanh (arg1); |
39bec121 TW |
3161 | } |
3162 | ||
d0313fb7 | 3163 | /* Built-in substitution symbol functions and math functions. */ |
1aea3bb8 | 3164 | typedef struct |
39bec121 TW |
3165 | { |
3166 | char *name; | |
f1e7a2c9 | 3167 | int (*proc) PARAMS ((char *, char *)); |
39bec121 TW |
3168 | int nargs; |
3169 | } subsym_proc_entry; | |
3170 | ||
d0313fb7 NC |
3171 | static const subsym_proc_entry subsym_procs[] = |
3172 | { | |
3173 | /* Assembler built-in string substitution functions. */ | |
39bec121 TW |
3174 | { "$symlen", subsym_symlen, 1, }, |
3175 | { "$symcmp", subsym_symcmp, 2, }, | |
3176 | { "$firstch", subsym_firstch, 2, }, | |
3177 | { "$lastch", subsym_lastch, 2, }, | |
3178 | { "$isdefed", subsym_isdefed, 1, }, | |
3179 | { "$ismember", subsym_ismember, 2, }, | |
3180 | { "$iscons", subsym_iscons, 1, }, | |
3181 | { "$isname", subsym_isname, 1, }, | |
3182 | { "$isreg", subsym_isreg, 1, }, | |
3183 | { "$structsz", subsym_structsz, 1, }, | |
3184 | { "$structacc", subsym_structacc, 1, }, | |
3185 | { NULL, NULL, 0 }, | |
3186 | }; | |
3187 | ||
3188 | typedef struct | |
3189 | { | |
3190 | char *name; | |
f1e7a2c9 | 3191 | float (*proc) PARAMS ((float, float)); |
39bec121 TW |
3192 | int nargs; |
3193 | int int_return; | |
3194 | } math_proc_entry; | |
3195 | ||
d0313fb7 NC |
3196 | static const math_proc_entry math_procs[] = |
3197 | { | |
3198 | /* Integer-returning built-in math functions. */ | |
39bec121 TW |
3199 | { "$cvi", math_cvi, 1, 1 }, |
3200 | { "$int", math_int, 1, 1 }, | |
3201 | { "$sgn", math_sgn, 1, 1 }, | |
3202 | ||
d0313fb7 | 3203 | /* Float-returning built-in math functions. */ |
39bec121 TW |
3204 | { "$acos", math_acos, 1, 0 }, |
3205 | { "$asin", math_asin, 1, 0 }, | |
3206 | { "$atan", math_atan, 1, 0 }, | |
1aea3bb8 | 3207 | { "$atan2", math_atan2, 2, 0 }, |
39bec121 TW |
3208 | { "$ceil", math_ceil, 1, 0 }, |
3209 | { "$cosh", math_cosh, 1, 0 }, | |
3210 | { "$cos", math_cos, 1, 0 }, | |
3211 | { "$cvf", math_cvf, 1, 0 }, | |
3212 | { "$exp", math_exp, 1, 0 }, | |
3213 | { "$fabs", math_fabs, 1, 0 }, | |
3214 | { "$floor", math_floor, 1, 0 }, | |
3215 | { "$fmod", math_fmod, 2, 0 }, | |
3216 | { "$ldexp", math_ldexp, 2, 0 }, | |
3217 | { "$log10", math_log10, 1, 0 }, | |
3218 | { "$log", math_log, 1, 0 }, | |
3219 | { "$max", math_max, 2, 0 }, | |
3220 | { "$min", math_min, 2, 0 }, | |
3221 | { "$pow", math_pow, 2, 0 }, | |
3222 | { "$round", math_round, 1, 0 }, | |
3223 | { "$sin", math_sin, 1, 0 }, | |
3224 | { "$sinh", math_sinh, 1, 0 }, | |
3225 | { "$sqrt", math_sqrt, 1, 0 }, | |
3226 | { "$tan", math_tan, 1, 0 }, | |
3227 | { "$tanh", math_tanh, 1, 0 }, | |
3228 | { "$trunc", math_trunc, 1, 0 }, | |
3229 | { NULL, NULL, 0, 0 }, | |
3230 | }; | |
3231 | ||
3232 | void | |
3233 | md_begin () | |
3234 | { | |
6e917903 | 3235 | template *tm; |
39bec121 TW |
3236 | symbol *sym; |
3237 | const subsym_proc_entry *subsym_proc; | |
3238 | const math_proc_entry *math_proc; | |
3239 | const char *hash_err; | |
3240 | char **symname; | |
3241 | char *TIC54X_DIR = getenv ("TIC54X_DIR"); | |
3242 | char *A_DIR = TIC54X_DIR ? TIC54X_DIR : getenv ("A_DIR"); | |
3243 | ||
3244 | local_label_id = 0; | |
3245 | ||
f1e7a2c9 | 3246 | /* Look for A_DIR and add it to the include list. */ |
39bec121 TW |
3247 | if (A_DIR != NULL) |
3248 | { | |
3249 | char *tmp = xstrdup (A_DIR); | |
f1e7a2c9 | 3250 | |
1aea3bb8 NC |
3251 | do |
3252 | { | |
3253 | char *next = strchr (tmp, ';'); | |
f1e7a2c9 | 3254 | |
1aea3bb8 NC |
3255 | if (next) |
3256 | *next++ = '\0'; | |
3257 | add_include_dir (tmp); | |
3258 | tmp = next; | |
3259 | } | |
3260 | while (tmp != NULL); | |
39bec121 TW |
3261 | } |
3262 | ||
3263 | op_hash = hash_new (); | |
6e917903 | 3264 | for (tm = (template *) tic54x_optab; tm->name; tm++) |
39bec121 | 3265 | { |
6e917903 | 3266 | if (hash_find (op_hash, tm->name)) |
9a736b6b | 3267 | continue; |
6e917903 | 3268 | hash_err = hash_insert (op_hash, tm->name, (char *) tm); |
39bec121 | 3269 | if (hash_err) |
9a736b6b | 3270 | as_fatal ("Internal Error: Can't hash %s: %s", |
6e917903 | 3271 | tm->name, hash_err); |
39bec121 TW |
3272 | } |
3273 | parop_hash = hash_new (); | |
5d6255fe | 3274 | for (tm = (template *) tic54x_paroptab; tm->name; tm++) |
39bec121 | 3275 | { |
6e917903 | 3276 | if (hash_find (parop_hash, tm->name)) |
9a736b6b | 3277 | continue; |
6e917903 | 3278 | hash_err = hash_insert (parop_hash, tm->name, (char *) tm); |
39bec121 | 3279 | if (hash_err) |
9a736b6b | 3280 | as_fatal ("Internal Error: Can't hash %s: %s", |
6e917903 | 3281 | tm->name, hash_err); |
39bec121 TW |
3282 | } |
3283 | reg_hash = hash_new (); | |
1aea3bb8 | 3284 | for (sym = (symbol *) regs; sym->name; sym++) |
39bec121 | 3285 | { |
d0313fb7 | 3286 | /* Add basic registers to the symbol table. */ |
39bec121 | 3287 | symbolS *symbolP = symbol_new (sym->name, absolute_section, |
9a736b6b | 3288 | (valueT) sym->value, &zero_address_frag); |
39bec121 TW |
3289 | SF_SET_LOCAL (symbolP); |
3290 | symbol_table_insert (symbolP); | |
1aea3bb8 | 3291 | hash_err = hash_insert (reg_hash, sym->name, (char *) sym); |
39bec121 | 3292 | } |
1aea3bb8 NC |
3293 | for (sym = (symbol *) mmregs; sym->name; sym++) |
3294 | hash_err = hash_insert (reg_hash, sym->name, (char *) sym); | |
39bec121 | 3295 | mmreg_hash = hash_new (); |
1aea3bb8 | 3296 | for (sym = (symbol *) mmregs; sym->name; sym++) |
f1e7a2c9 NC |
3297 | hash_err = hash_insert (mmreg_hash, sym->name, (char *) sym); |
3298 | ||
39bec121 | 3299 | cc_hash = hash_new (); |
1aea3bb8 | 3300 | for (sym = (symbol *) condition_codes; sym->name; sym++) |
f1e7a2c9 NC |
3301 | hash_err = hash_insert (cc_hash, sym->name, (char *) sym); |
3302 | ||
39bec121 | 3303 | cc2_hash = hash_new (); |
1aea3bb8 | 3304 | for (sym = (symbol *) cc2_codes; sym->name; sym++) |
f1e7a2c9 NC |
3305 | hash_err = hash_insert (cc2_hash, sym->name, (char *) sym); |
3306 | ||
39bec121 | 3307 | cc3_hash = hash_new (); |
1aea3bb8 | 3308 | for (sym = (symbol *) cc3_codes; sym->name; sym++) |
f1e7a2c9 NC |
3309 | hash_err = hash_insert (cc3_hash, sym->name, (char *) sym); |
3310 | ||
39bec121 | 3311 | sbit_hash = hash_new (); |
1aea3bb8 | 3312 | for (sym = (symbol *) status_bits; sym->name; sym++) |
f1e7a2c9 NC |
3313 | hash_err = hash_insert (sbit_hash, sym->name, (char *) sym); |
3314 | ||
39bec121 | 3315 | misc_symbol_hash = hash_new (); |
1aea3bb8 | 3316 | for (symname = (char **) misc_symbols; *symname; symname++) |
f1e7a2c9 NC |
3317 | hash_err = hash_insert (misc_symbol_hash, *symname, *symname); |
3318 | ||
d0313fb7 NC |
3319 | /* Only the base substitution table and local label table are initialized; |
3320 | the others (for local macro substitution) get instantiated as needed. */ | |
39bec121 TW |
3321 | local_label_hash[0] = hash_new (); |
3322 | subsym_hash[0] = hash_new (); | |
3323 | for (subsym_proc = subsym_procs; subsym_proc->name; subsym_proc++) | |
f1e7a2c9 NC |
3324 | hash_err = hash_insert (subsym_hash[0], subsym_proc->name, |
3325 | (char *) subsym_proc); | |
3326 | ||
39bec121 TW |
3327 | math_hash = hash_new (); |
3328 | for (math_proc = math_procs; math_proc->name; math_proc++) | |
3329 | { | |
d0313fb7 | 3330 | /* Insert into the main subsym hash for recognition; insert into |
9a736b6b | 3331 | the math hash to actually store information. */ |
39bec121 | 3332 | hash_err = hash_insert (subsym_hash[0], math_proc->name, |
9a736b6b | 3333 | (char *) math_proc); |
39bec121 | 3334 | hash_err = hash_insert (math_hash, math_proc->name, |
9a736b6b | 3335 | (char *) math_proc); |
39bec121 TW |
3336 | } |
3337 | subsym_recurse_hash = hash_new (); | |
3338 | stag_hash = hash_new (); | |
3339 | } | |
3340 | ||
39bec121 | 3341 | static int |
f1e7a2c9 NC |
3342 | is_accumulator (operand) |
3343 | struct opstruct *operand; | |
39bec121 | 3344 | { |
1aea3bb8 | 3345 | return strcasecmp (operand->buf, "a") == 0 |
39bec121 TW |
3346 | || strcasecmp (operand->buf, "b") == 0; |
3347 | } | |
3348 | ||
9a736b6b NC |
3349 | /* Return the number of operands found, or -1 on error, copying the |
3350 | operands into the given array and the accompanying expressions into | |
3351 | the next array. */ | |
3352 | ||
39bec121 | 3353 | static int |
f1e7a2c9 NC |
3354 | get_operands (operands, line) |
3355 | struct opstruct operands[]; | |
3356 | char *line; | |
39bec121 TW |
3357 | { |
3358 | char *lptr = line; | |
3359 | int numexp = 0; | |
3360 | int expecting_operand = 0; | |
3361 | int i; | |
3362 | ||
1aea3bb8 | 3363 | while (numexp < MAX_OPERANDS && !is_end_of_line[(int) *lptr]) |
39bec121 TW |
3364 | { |
3365 | int paren_not_balanced = 0; | |
3366 | char *op_start, *op_end; | |
f1e7a2c9 | 3367 | |
3882b010 | 3368 | while (*lptr && ISSPACE (*lptr)) |
9a736b6b | 3369 | ++lptr; |
39bec121 TW |
3370 | op_start = lptr; |
3371 | while (paren_not_balanced || *lptr != ',') | |
9a736b6b NC |
3372 | { |
3373 | if (*lptr == '\0') | |
3374 | { | |
3375 | if (paren_not_balanced) | |
3376 | { | |
3377 | as_bad ("Unbalanced parenthesis in operand %d", numexp); | |
3378 | return -1; | |
3379 | } | |
3380 | else | |
3381 | break; | |
3382 | } | |
3383 | if (*lptr == '(') | |
3384 | ++paren_not_balanced; | |
3385 | else if (*lptr == ')') | |
3386 | --paren_not_balanced; | |
3387 | ++lptr; | |
3388 | } | |
39bec121 TW |
3389 | op_end = lptr; |
3390 | if (op_end != op_start) | |
9a736b6b NC |
3391 | { |
3392 | int len = op_end - op_start; | |
f1e7a2c9 | 3393 | |
9a736b6b NC |
3394 | strncpy (operands[numexp].buf, op_start, len); |
3395 | operands[numexp].buf[len] = 0; | |
3396 | /* Trim trailing spaces; while the preprocessor gets rid of most, | |
3397 | there are weird usage patterns that can introduce them | |
3398 | (i.e. using strings for macro args). */ | |
3882b010 | 3399 | while (len > 0 && ISSPACE (operands[numexp].buf[len - 1])) |
9a736b6b NC |
3400 | operands[numexp].buf[--len] = 0; |
3401 | lptr = op_end; | |
3402 | ++numexp; | |
3403 | } | |
1aea3bb8 | 3404 | else |
9a736b6b NC |
3405 | { |
3406 | if (expecting_operand || *lptr == ',') | |
3407 | { | |
3408 | as_bad ("Expecting operand after ','"); | |
3409 | return -1; | |
3410 | } | |
3411 | } | |
39bec121 | 3412 | if (*lptr == ',') |
9a736b6b NC |
3413 | { |
3414 | if (*++lptr == '\0') | |
3415 | { | |
3416 | as_bad ("Expecting operand after ','"); | |
3417 | return -1; | |
3418 | } | |
3419 | expecting_operand = 1; | |
3420 | } | |
39bec121 TW |
3421 | } |
3422 | ||
3882b010 | 3423 | while (*lptr && ISSPACE (*lptr++)) |
39bec121 | 3424 | ; |
1aea3bb8 | 3425 | if (!is_end_of_line[(int) *lptr]) |
39bec121 TW |
3426 | { |
3427 | as_bad ("Extra junk on line"); | |
3428 | return -1; | |
3429 | } | |
3430 | ||
d0313fb7 | 3431 | /* OK, now parse them into expressions. */ |
1aea3bb8 | 3432 | for (i = 0; i < numexp; i++) |
39bec121 TW |
3433 | { |
3434 | memset (&operands[i].exp, 0, sizeof (operands[i].exp)); | |
3435 | if (operands[i].buf[0] == '#') | |
9a736b6b NC |
3436 | { |
3437 | /* Immediate. */ | |
3438 | parse_expression (operands[i].buf + 1, &operands[i].exp); | |
3439 | } | |
39bec121 | 3440 | else if (operands[i].buf[0] == '@') |
9a736b6b NC |
3441 | { |
3442 | /* Direct notation. */ | |
3443 | parse_expression (operands[i].buf + 1, &operands[i].exp); | |
3444 | } | |
39bec121 | 3445 | else if (operands[i].buf[0] == '*') |
9a736b6b NC |
3446 | { |
3447 | /* Indirect. */ | |
3448 | char *paren = strchr (operands[i].buf, '('); | |
f1e7a2c9 | 3449 | |
9a736b6b NC |
3450 | /* Allow immediate syntax in the inner expression. */ |
3451 | if (paren && paren[1] == '#') | |
3452 | *++paren = '('; | |
3453 | ||
3454 | /* Pull out the lk expression or SP offset, if present. */ | |
3455 | if (paren != NULL) | |
3456 | { | |
3457 | int len = strlen (paren); | |
3458 | char *end = paren + len; | |
3459 | int c; | |
f1e7a2c9 | 3460 | |
9a736b6b NC |
3461 | while (end[-1] != ')') |
3462 | if (--end <= paren) | |
3463 | { | |
3464 | as_bad (_("Badly formed address expression")); | |
3465 | return -1; | |
3466 | } | |
3467 | c = *end; | |
3468 | *end = '\0'; | |
3469 | parse_expression (paren, &operands[i].exp); | |
3470 | *end = c; | |
3471 | } | |
3472 | else | |
3473 | operands[i].exp.X_op = O_absent; | |
3474 | } | |
39bec121 | 3475 | else |
9a736b6b | 3476 | parse_expression (operands[i].buf, &operands[i].exp); |
39bec121 TW |
3477 | } |
3478 | ||
3479 | return numexp; | |
3480 | } | |
3481 | ||
d0313fb7 | 3482 | /* Predicates for different operand types. */ |
9a736b6b | 3483 | |
39bec121 | 3484 | static int |
f1e7a2c9 NC |
3485 | is_immediate (operand) |
3486 | struct opstruct *operand; | |
39bec121 | 3487 | { |
1aea3bb8 | 3488 | return *operand->buf == '#'; |
39bec121 TW |
3489 | } |
3490 | ||
3491 | /* This is distinguished from immediate because some numbers must be constants | |
d0313fb7 | 3492 | and must *not* have the '#' prefix. */ |
9a736b6b | 3493 | |
39bec121 | 3494 | static int |
f1e7a2c9 NC |
3495 | is_absolute (operand) |
3496 | struct opstruct *operand; | |
39bec121 TW |
3497 | { |
3498 | return operand->exp.X_op == O_constant && !is_immediate (operand); | |
3499 | } | |
3500 | ||
d0313fb7 | 3501 | /* Is this an indirect operand? */ |
9a736b6b | 3502 | |
39bec121 | 3503 | static int |
f1e7a2c9 NC |
3504 | is_indirect (operand) |
3505 | struct opstruct *operand; | |
39bec121 TW |
3506 | { |
3507 | return operand->buf[0] == '*'; | |
3508 | } | |
3509 | ||
d0313fb7 | 3510 | /* Is this a valid dual-memory operand? */ |
9a736b6b | 3511 | |
39bec121 | 3512 | static int |
f1e7a2c9 NC |
3513 | is_dual (operand) |
3514 | struct opstruct *operand; | |
39bec121 TW |
3515 | { |
3516 | if (is_indirect (operand) && strncasecmp (operand->buf, "*ar", 3) == 0) | |
3517 | { | |
3518 | char *tmp = operand->buf + 3; | |
3519 | int arf; | |
3520 | int valid_mod; | |
1aea3bb8 | 3521 | |
39bec121 | 3522 | arf = *tmp++ - '0'; |
d0313fb7 | 3523 | /* Only allow *ARx, *ARx-, *ARx+, or *ARx+0%. */ |
39bec121 | 3524 | valid_mod = *tmp == '\0' || |
9a736b6b NC |
3525 | strcasecmp (tmp, "-") == 0 || |
3526 | strcasecmp (tmp, "+") == 0 || | |
3527 | strcasecmp (tmp, "+0%") == 0; | |
39bec121 TW |
3528 | return arf >= 2 && arf <= 5 && valid_mod; |
3529 | } | |
3530 | return 0; | |
3531 | } | |
3532 | ||
3533 | static int | |
f1e7a2c9 NC |
3534 | is_mmreg (operand) |
3535 | struct opstruct *operand; | |
39bec121 | 3536 | { |
9a736b6b NC |
3537 | return (is_absolute (operand) |
3538 | || is_immediate (operand) | |
3539 | || hash_find (mmreg_hash, operand->buf) != 0); | |
39bec121 TW |
3540 | } |
3541 | ||
3542 | static int | |
f1e7a2c9 NC |
3543 | is_type (operand, type) |
3544 | struct opstruct *operand; | |
3545 | enum optype type; | |
39bec121 TW |
3546 | { |
3547 | switch (type) | |
3548 | { | |
3549 | case OP_None: | |
3550 | return operand->buf[0] == 0; | |
3551 | case OP_Xmem: | |
3552 | case OP_Ymem: | |
3553 | return is_dual (operand); | |
3554 | case OP_Sind: | |
3555 | return is_indirect (operand); | |
3556 | case OP_xpmad_ms7: | |
d0313fb7 | 3557 | /* This one *must* be immediate. */ |
39bec121 TW |
3558 | return is_immediate (operand); |
3559 | case OP_xpmad: | |
3560 | case OP_pmad: | |
3561 | case OP_PA: | |
3562 | case OP_dmad: | |
3563 | case OP_Lmem: | |
3564 | case OP_MMR: | |
3565 | return 1; | |
3566 | case OP_Smem: | |
d0313fb7 | 3567 | /* Address may be a numeric, indirect, or an expression. */ |
39bec121 TW |
3568 | return !is_immediate (operand); |
3569 | case OP_MMRY: | |
3570 | case OP_MMRX: | |
3571 | return is_mmreg (operand); | |
3572 | case OP_SRC: | |
3573 | case OP_SRC1: | |
3574 | case OP_RND: | |
3575 | case OP_DST: | |
3576 | return is_accumulator (operand); | |
3577 | case OP_B: | |
3882b010 | 3578 | return is_accumulator (operand) && TOUPPER (operand->buf[0]) == 'B'; |
39bec121 | 3579 | case OP_A: |
3882b010 | 3580 | return is_accumulator (operand) && TOUPPER (operand->buf[0]) == 'A'; |
39bec121 | 3581 | case OP_ARX: |
1aea3bb8 | 3582 | return strncasecmp ("ar", operand->buf, 2) == 0 |
3882b010 | 3583 | && ISDIGIT (operand->buf[2]); |
39bec121 TW |
3584 | case OP_SBIT: |
3585 | return hash_find (sbit_hash, operand->buf) != 0 || is_absolute (operand); | |
3586 | case OP_CC: | |
3587 | return hash_find (cc_hash, operand->buf) != 0; | |
3588 | case OP_CC2: | |
3589 | return hash_find (cc2_hash, operand->buf) != 0; | |
3590 | case OP_CC3: | |
1aea3bb8 | 3591 | return hash_find (cc3_hash, operand->buf) != 0 |
9a736b6b | 3592 | || is_immediate (operand) || is_absolute (operand); |
39bec121 TW |
3593 | case OP_16: |
3594 | return (is_immediate (operand) || is_absolute (operand)) | |
9a736b6b | 3595 | && operand->exp.X_add_number == 16; |
39bec121 | 3596 | case OP_N: |
d0313fb7 | 3597 | /* Allow st0 or st1 instead of a numeric. */ |
39bec121 | 3598 | return is_absolute (operand) || is_immediate (operand) || |
9a736b6b NC |
3599 | strcasecmp ("st0", operand->buf) == 0 || |
3600 | strcasecmp ("st1", operand->buf) == 0; | |
39bec121 TW |
3601 | case OP_12: |
3602 | case OP_123: | |
3603 | return is_absolute (operand) || is_immediate (operand); | |
3604 | case OP_SHFT: | |
3605 | return (is_immediate (operand) || is_absolute (operand)) | |
9a736b6b | 3606 | && operand->exp.X_add_number >= 0 && operand->exp.X_add_number < 16; |
39bec121 | 3607 | case OP_SHIFT: |
d0313fb7 | 3608 | /* Let this one catch out-of-range values. */ |
39bec121 | 3609 | return (is_immediate (operand) || is_absolute (operand)) |
9a736b6b | 3610 | && operand->exp.X_add_number != 16; |
39bec121 TW |
3611 | case OP_BITC: |
3612 | case OP_031: | |
3613 | case OP_k8: | |
3614 | return is_absolute (operand) || is_immediate (operand); | |
3615 | case OP_k8u: | |
1aea3bb8 | 3616 | return is_immediate (operand) |
9a736b6b NC |
3617 | && operand->exp.X_op == O_constant |
3618 | && operand->exp.X_add_number >= 0 | |
3619 | && operand->exp.X_add_number < 256; | |
39bec121 TW |
3620 | case OP_lk: |
3621 | case OP_lku: | |
1aea3bb8 | 3622 | /* Allow anything; assumes opcodes are ordered with Smem operands |
9a736b6b | 3623 | versions first. */ |
39bec121 TW |
3624 | return 1; |
3625 | case OP_k5: | |
3626 | case OP_k3: | |
3627 | case OP_k9: | |
d0313fb7 | 3628 | /* Just make sure it's an integer; check range later. */ |
39bec121 TW |
3629 | return is_immediate (operand); |
3630 | case OP_T: | |
1aea3bb8 | 3631 | return strcasecmp ("t", operand->buf) == 0 || |
9a736b6b | 3632 | strcasecmp ("treg", operand->buf) == 0; |
39bec121 TW |
3633 | case OP_TS: |
3634 | return strcasecmp ("ts", operand->buf) == 0; | |
3635 | case OP_ASM: | |
3636 | return strcasecmp ("asm", operand->buf) == 0; | |
3637 | case OP_TRN: | |
3638 | return strcasecmp ("trn", operand->buf) == 0; | |
3639 | case OP_DP: | |
3640 | return strcasecmp ("dp", operand->buf) == 0; | |
3641 | case OP_ARP: | |
3642 | return strcasecmp ("arp", operand->buf) == 0; | |
3643 | default: | |
3644 | return 0; | |
3645 | } | |
3646 | } | |
3647 | ||
3648 | static int | |
3649 | operands_match (insn, operands, opcount, refoptype, minops, maxops) | |
1aea3bb8 NC |
3650 | tic54x_insn *insn; |
3651 | struct opstruct *operands; | |
3652 | int opcount; | |
3653 | const enum optype *refoptype; | |
f1e7a2c9 NC |
3654 | int minops; |
3655 | int maxops; | |
39bec121 TW |
3656 | { |
3657 | int op = 0, refop = 0; | |
3658 | ||
3659 | if (opcount == 0 && minops == 0) | |
f1e7a2c9 | 3660 | return 1; |
39bec121 TW |
3661 | |
3662 | while (op <= maxops && refop <= maxops) | |
3663 | { | |
3664 | while (!is_type (&operands[op], OPTYPE (refoptype[refop]))) | |
9a736b6b NC |
3665 | { |
3666 | /* Skip an optional template operand if it doesn't agree | |
3667 | with the current operand. */ | |
3668 | if (refoptype[refop] & OPT) | |
3669 | { | |
3670 | ++refop; | |
3671 | --maxops; | |
3672 | if (refop > maxops) | |
3673 | return 0; | |
3674 | } | |
3675 | else | |
3676 | return 0; | |
3677 | } | |
39bec121 | 3678 | |
d0313fb7 | 3679 | /* Save the actual operand type for later use. */ |
39bec121 TW |
3680 | operands[op].type = OPTYPE (refoptype[refop]); |
3681 | ++refop; | |
3682 | ++op; | |
d0313fb7 | 3683 | /* Have we matched them all yet? */ |
39bec121 | 3684 | if (op == opcount) |
9a736b6b NC |
3685 | { |
3686 | while (op < maxops) | |
3687 | { | |
3688 | /* If a later operand is *not* optional, no match. */ | |
3689 | if ((refoptype[refop] & OPT) == 0) | |
3690 | return 0; | |
3691 | /* Flag any implicit default OP_DST operands so we know to add | |
3692 | them explicitly when encoding the operand later. */ | |
3693 | if (OPTYPE (refoptype[refop]) == OP_DST) | |
3694 | insn->using_default_dst = 1; | |
3695 | ++refop; | |
3696 | ++op; | |
3697 | } | |
3698 | ||
3699 | return 1; | |
3700 | } | |
39bec121 TW |
3701 | } |
3702 | ||
3703 | return 0; | |
3704 | } | |
3705 | ||
1aea3bb8 | 3706 | /* 16-bit direct memory address |
39bec121 TW |
3707 | Explicit dmad operands are always in last word of insn (usually second |
3708 | word, but bumped to third if lk addressing is used) | |
3709 | ||
3710 | We allow *(dmad) notation because the TI assembler allows it. | |
3711 | ||
1aea3bb8 | 3712 | XPC_CODE: |
39bec121 TW |
3713 | 0 for 16-bit addresses |
3714 | 1 for full 23-bit addresses | |
d0313fb7 | 3715 | 2 for the upper 7 bits of a 23-bit address (LDX). */ |
9a736b6b | 3716 | |
39bec121 TW |
3717 | static int |
3718 | encode_dmad (insn, operand, xpc_code) | |
1aea3bb8 NC |
3719 | tic54x_insn *insn; |
3720 | struct opstruct *operand; | |
3721 | int xpc_code; | |
39bec121 TW |
3722 | { |
3723 | int op = 1 + insn->is_lkaddr; | |
3724 | ||
d0313fb7 | 3725 | /* Only allow *(dmad) expressions; all others are invalid. */ |
1aea3bb8 | 3726 | if (is_indirect (operand) && operand->buf[strlen (operand->buf) - 1] != ')') |
39bec121 TW |
3727 | { |
3728 | as_bad (_("Invalid dmad syntax '%s'"), operand->buf); | |
3729 | return 0; | |
3730 | } | |
3731 | ||
3732 | insn->opcode[op].addr_expr = operand->exp; | |
3733 | ||
3734 | if (insn->opcode[op].addr_expr.X_op == O_constant) | |
3735 | { | |
3736 | valueT value = insn->opcode[op].addr_expr.X_add_number; | |
f1e7a2c9 | 3737 | |
39bec121 | 3738 | if (xpc_code == 1) |
9a736b6b NC |
3739 | { |
3740 | insn->opcode[0].word &= 0xFF80; | |
3741 | insn->opcode[0].word |= (value >> 16) & 0x7F; | |
3742 | insn->opcode[1].word = value & 0xFFFF; | |
3743 | } | |
39bec121 | 3744 | else if (xpc_code == 2) |
9a736b6b | 3745 | insn->opcode[op].word = (value >> 16) & 0xFFFF; |
39bec121 | 3746 | else |
9a736b6b | 3747 | insn->opcode[op].word = value; |
39bec121 TW |
3748 | } |
3749 | else | |
3750 | { | |
d0313fb7 | 3751 | /* Do the fixup later; just store the expression. */ |
39bec121 TW |
3752 | insn->opcode[op].word = 0; |
3753 | insn->opcode[op].r_nchars = 2; | |
3754 | ||
3755 | if (amode == c_mode) | |
9a736b6b | 3756 | insn->opcode[op].r_type = BFD_RELOC_TIC54X_16_OF_23; |
39bec121 | 3757 | else if (xpc_code == 1) |
9a736b6b NC |
3758 | { |
3759 | /* This relocation spans two words, so adjust accordingly. */ | |
3760 | insn->opcode[0].addr_expr = operand->exp; | |
3761 | insn->opcode[0].r_type = BFD_RELOC_TIC54X_23; | |
3762 | insn->opcode[0].r_nchars = 4; | |
3763 | insn->opcode[0].unresolved = 1; | |
3764 | /* It's really 2 words, but we want to stop encoding after the | |
3765 | first, since we must encode both words at once. */ | |
3766 | insn->words = 1; | |
3767 | } | |
39bec121 | 3768 | else if (xpc_code == 2) |
9a736b6b | 3769 | insn->opcode[op].r_type = BFD_RELOC_TIC54X_MS7_OF_23; |
39bec121 | 3770 | else |
9a736b6b | 3771 | insn->opcode[op].r_type = BFD_RELOC_TIC54X_16_OF_23; |
39bec121 TW |
3772 | |
3773 | insn->opcode[op].unresolved = 1; | |
3774 | } | |
3775 | ||
3776 | return 1; | |
3777 | } | |
3778 | ||
d0313fb7 | 3779 | /* 7-bit direct address encoding. */ |
9a736b6b | 3780 | |
39bec121 TW |
3781 | static int |
3782 | encode_address (insn, operand) | |
1aea3bb8 NC |
3783 | tic54x_insn *insn; |
3784 | struct opstruct *operand; | |
39bec121 | 3785 | { |
d0313fb7 | 3786 | /* Assumes that dma addresses are *always* in word 0 of the opcode. */ |
39bec121 TW |
3787 | insn->opcode[0].addr_expr = operand->exp; |
3788 | ||
3789 | if (operand->exp.X_op == O_constant) | |
3790 | insn->opcode[0].word |= (operand->exp.X_add_number & 0x7F); | |
3791 | else | |
3792 | { | |
f1e7a2c9 NC |
3793 | if (operand->exp.X_op == O_register) |
3794 | as_bad (_("Use the .mmregs directive to use memory-mapped register names such as '%s'"), operand->buf); | |
d0313fb7 | 3795 | /* Do the fixup later; just store the expression. */ |
39bec121 TW |
3796 | insn->opcode[0].r_nchars = 1; |
3797 | insn->opcode[0].r_type = BFD_RELOC_TIC54X_PARTLS7; | |
3798 | insn->opcode[0].unresolved = 1; | |
3799 | } | |
3800 | ||
3801 | return 1; | |
3802 | } | |
3803 | ||
3804 | static int | |
f1e7a2c9 NC |
3805 | encode_indirect (insn, operand) |
3806 | tic54x_insn *insn; | |
3807 | struct opstruct *operand; | |
39bec121 TW |
3808 | { |
3809 | int arf; | |
3810 | int mod; | |
3811 | ||
3812 | if (insn->is_lkaddr) | |
3813 | { | |
d0313fb7 | 3814 | /* lk addresses always go in the second insn word. */ |
3882b010 | 3815 | mod = ((TOUPPER (operand->buf[1]) == 'A') ? 12 : |
9a736b6b NC |
3816 | (operand->buf[1] == '(') ? 15 : |
3817 | (strchr (operand->buf, '%') != NULL) ? 14 : 13); | |
39bec121 | 3818 | arf = ((mod == 12) ? operand->buf[3] - '0' : |
9a736b6b | 3819 | (mod == 15) ? 0 : operand->buf[4] - '0'); |
1aea3bb8 | 3820 | |
39bec121 TW |
3821 | insn->opcode[1].addr_expr = operand->exp; |
3822 | ||
3823 | if (operand->exp.X_op == O_constant) | |
9a736b6b | 3824 | insn->opcode[1].word = operand->exp.X_add_number; |
39bec121 | 3825 | else |
9a736b6b NC |
3826 | { |
3827 | insn->opcode[1].word = 0; | |
3828 | insn->opcode[1].r_nchars = 2; | |
3829 | insn->opcode[1].r_type = BFD_RELOC_TIC54X_16_OF_23; | |
3830 | insn->opcode[1].unresolved = 1; | |
3831 | } | |
39bec121 TW |
3832 | } |
3833 | else if (strncasecmp (operand->buf, "*sp (", 4) == 0) | |
3834 | { | |
d0313fb7 | 3835 | /* Stack offsets look the same as 7-bit direct addressing. */ |
39bec121 TW |
3836 | return encode_address (insn, operand); |
3837 | } | |
3838 | else | |
3839 | { | |
3882b010 | 3840 | arf = (TOUPPER (operand->buf[1]) == 'A' ? |
9a736b6b | 3841 | operand->buf[3] : operand->buf[4]) - '0'; |
1aea3bb8 NC |
3842 | |
3843 | if (operand->buf[1] == '+') | |
9a736b6b NC |
3844 | { |
3845 | mod = 3; /* *+ARx */ | |
3846 | if (insn->tm->flags & FL_SMR) | |
3847 | as_warn (_("Address mode *+ARx is write-only. " | |
3848 | "Results of reading are undefined.")); | |
3849 | } | |
1aea3bb8 | 3850 | else if (operand->buf[4] == '\0') |
9a736b6b | 3851 | mod = 0; /* *ARx */ |
39bec121 | 3852 | else if (operand->buf[5] == '\0') |
9a736b6b | 3853 | mod = (operand->buf[4] == '-' ? 1 : 2); /* *ARx+ / *ARx- */ |
39bec121 | 3854 | else if (operand->buf[6] == '\0') |
9a736b6b NC |
3855 | { |
3856 | if (operand->buf[5] == '0') | |
3857 | mod = (operand->buf[4] == '-' ? 5 : 6); /* *ARx+0 / *ARx-0 */ | |
3858 | else | |
3859 | mod = (operand->buf[4] == '-' ? 8 : 10);/* *ARx+% / *ARx-% */ | |
3860 | } | |
3882b010 | 3861 | else if (TOUPPER (operand->buf[6]) == 'B') |
9a736b6b | 3862 | mod = (operand->buf[4] == '-' ? 4 : 7); /* ARx+0B / *ARx-0B */ |
3882b010 | 3863 | else if (TOUPPER (operand->buf[6]) == '%') |
9a736b6b | 3864 | mod = (operand->buf[4] == '-' ? 9 : 11); /* ARx+0% / *ARx - 0% */ |
39bec121 | 3865 | else |
9a736b6b NC |
3866 | { |
3867 | as_bad (_("Unrecognized indirect address format \"%s\""), | |
3868 | operand->buf); | |
3869 | return 0; | |
3870 | } | |
1aea3bb8 | 3871 | } |
39bec121 | 3872 | |
1aea3bb8 | 3873 | insn->opcode[0].word |= 0x80 | (mod << 3) | arf; |
39bec121 TW |
3874 | |
3875 | return 1; | |
3876 | } | |
3877 | ||
3878 | static int | |
f1e7a2c9 NC |
3879 | encode_integer (insn, operand, which, min, max, mask) |
3880 | tic54x_insn *insn; | |
3881 | struct opstruct *operand; | |
3882 | int which; | |
3883 | int min; | |
3884 | int max; | |
3885 | unsigned short mask; | |
39bec121 TW |
3886 | { |
3887 | long parse, integer; | |
3888 | ||
3889 | insn->opcode[which].addr_expr = operand->exp; | |
3890 | ||
3891 | if (operand->exp.X_op == O_constant) | |
3892 | { | |
3893 | parse = operand->exp.X_add_number; | |
d0313fb7 | 3894 | /* Hack -- fixup for 16-bit hex quantities that get converted positive |
9a736b6b | 3895 | instead of negative. */ |
39bec121 | 3896 | if ((parse & 0x8000) && min == -32768 && max == 32767) |
9a736b6b | 3897 | integer = (short) parse; |
39bec121 | 3898 | else |
9a736b6b | 3899 | integer = parse; |
39bec121 TW |
3900 | |
3901 | if (integer >= min && integer <= max) | |
9a736b6b NC |
3902 | { |
3903 | insn->opcode[which].word |= (integer & mask); | |
3904 | return 1; | |
3905 | } | |
1aea3bb8 | 3906 | as_bad (_("Operand '%s' out of range (%d <= x <= %d)"), |
9a736b6b | 3907 | operand->buf, min, max); |
39bec121 TW |
3908 | } |
3909 | else | |
3910 | { | |
3911 | if (insn->opcode[which].addr_expr.X_op == O_constant) | |
9a736b6b NC |
3912 | { |
3913 | insn->opcode[which].word |= | |
3914 | insn->opcode[which].addr_expr.X_add_number & mask; | |
3915 | } | |
39bec121 | 3916 | else |
9a736b6b NC |
3917 | { |
3918 | /* Do the fixup later; just store the expression. */ | |
3919 | bfd_reloc_code_real_type rtype = | |
3920 | (mask == 0x1FF ? BFD_RELOC_TIC54X_PARTMS9 : | |
3921 | mask == 0xFFFF ? BFD_RELOC_TIC54X_16_OF_23 : | |
3922 | mask == 0x7F ? BFD_RELOC_TIC54X_PARTLS7 : BFD_RELOC_8); | |
3923 | int size = (mask == 0x1FF || mask == 0xFFFF) ? 2 : 1; | |
3924 | ||
3925 | if (rtype == BFD_RELOC_8) | |
3926 | as_bad (_("Error in relocation handling")); | |
3927 | ||
3928 | insn->opcode[which].r_nchars = size; | |
3929 | insn->opcode[which].r_type = rtype; | |
3930 | insn->opcode[which].unresolved = 1; | |
3931 | } | |
39bec121 TW |
3932 | |
3933 | return 1; | |
3934 | } | |
3935 | ||
3936 | return 0; | |
3937 | } | |
3938 | ||
3939 | static int | |
f1e7a2c9 NC |
3940 | encode_condition (insn, operand) |
3941 | tic54x_insn *insn; | |
3942 | struct opstruct *operand; | |
39bec121 | 3943 | { |
1aea3bb8 | 3944 | symbol *cc = (symbol *) hash_find (cc_hash, operand->buf); |
39bec121 TW |
3945 | if (!cc) |
3946 | { | |
3947 | as_bad (_("Unrecognized condition code \"%s\""), operand->buf); | |
3948 | return 0; | |
3949 | } | |
3950 | #define CC_GROUP 0x40 | |
3951 | #define CC_ACC 0x08 | |
3952 | #define CATG_A1 0x07 | |
3953 | #define CATG_B1 0x30 | |
3954 | #define CATG_A2 0x30 | |
3955 | #define CATG_B2 0x0C | |
3956 | #define CATG_C2 0x03 | |
d0313fb7 | 3957 | /* Disallow group 1 conditions mixed with group 2 conditions |
39bec121 | 3958 | if group 1, allow only one category A and one category B |
d0313fb7 | 3959 | if group 2, allow only one each of category A, B, and C. */ |
39bec121 TW |
3960 | if (((insn->opcode[0].word & 0xFF) != 0)) |
3961 | { | |
3962 | if ((insn->opcode[0].word & CC_GROUP) != (cc->value & CC_GROUP)) | |
9a736b6b NC |
3963 | { |
3964 | as_bad (_("Condition \"%s\" does not match preceding group"), | |
3965 | operand->buf); | |
3966 | return 0; | |
3967 | } | |
39bec121 | 3968 | if (insn->opcode[0].word & CC_GROUP) |
9a736b6b NC |
3969 | { |
3970 | if ((insn->opcode[0].word & CC_ACC) != (cc->value & CC_ACC)) | |
3971 | { | |
3972 | as_bad (_("Condition \"%s\" uses a different accumulator from " | |
3973 | "a preceding condition"), | |
3974 | operand->buf); | |
3975 | return 0; | |
3976 | } | |
3977 | if ((insn->opcode[0].word & CATG_A1) && (cc->value & CATG_A1)) | |
3978 | { | |
3979 | as_bad (_("Only one comparison conditional allowed")); | |
3980 | return 0; | |
3981 | } | |
3982 | if ((insn->opcode[0].word & CATG_B1) && (cc->value & CATG_B1)) | |
3983 | { | |
3984 | as_bad (_("Only one overflow conditional allowed")); | |
3985 | return 0; | |
3986 | } | |
3987 | } | |
f1e7a2c9 NC |
3988 | else if ( ((insn->opcode[0].word & CATG_A2) && (cc->value & CATG_A2)) |
3989 | || ((insn->opcode[0].word & CATG_B2) && (cc->value & CATG_B2)) | |
3990 | || ((insn->opcode[0].word & CATG_C2) && (cc->value & CATG_C2))) | |
9a736b6b NC |
3991 | { |
3992 | as_bad (_("Duplicate %s conditional"), operand->buf); | |
3993 | return 0; | |
3994 | } | |
39bec121 TW |
3995 | } |
3996 | ||
3997 | insn->opcode[0].word |= cc->value; | |
3998 | return 1; | |
3999 | } | |
4000 | ||
4001 | static int | |
f1e7a2c9 NC |
4002 | encode_cc3 (insn, operand) |
4003 | tic54x_insn *insn; | |
4004 | struct opstruct *operand; | |
39bec121 | 4005 | { |
1aea3bb8 | 4006 | symbol *cc3 = (symbol *) hash_find (cc3_hash, operand->buf); |
39bec121 TW |
4007 | int value = cc3 ? cc3->value : operand->exp.X_add_number << 8; |
4008 | ||
4009 | if ((value & 0x0300) != value) | |
4010 | { | |
4011 | as_bad (_("Unrecognized condition code \"%s\""), operand->buf); | |
4012 | return 0; | |
4013 | } | |
4014 | insn->opcode[0].word |= value; | |
4015 | return 1; | |
4016 | } | |
4017 | ||
4018 | static int | |
f1e7a2c9 NC |
4019 | encode_arx (insn, operand) |
4020 | tic54x_insn *insn; | |
4021 | struct opstruct *operand; | |
39bec121 TW |
4022 | { |
4023 | int arf = strlen (operand->buf) >= 3 ? operand->buf[2] - '0' : -1; | |
f1e7a2c9 | 4024 | |
39bec121 TW |
4025 | if (strncasecmp ("ar", operand->buf, 2) || arf < 0 || arf > 7) |
4026 | { | |
4027 | as_bad (_("Invalid auxiliary register (use AR0-AR7)")); | |
4028 | return 0; | |
4029 | } | |
4030 | insn->opcode[0].word |= arf; | |
4031 | return 1; | |
4032 | } | |
4033 | ||
4034 | static int | |
f1e7a2c9 NC |
4035 | encode_cc2 (insn, operand) |
4036 | tic54x_insn *insn; | |
4037 | struct opstruct *operand; | |
39bec121 | 4038 | { |
1aea3bb8 | 4039 | symbol *cc2 = (symbol *) hash_find (cc2_hash, operand->buf); |
f1e7a2c9 | 4040 | |
39bec121 TW |
4041 | if (!cc2) |
4042 | { | |
4043 | as_bad (_("Unrecognized condition code \"%s\""), operand->buf); | |
4044 | return 0; | |
4045 | } | |
4046 | insn->opcode[0].word |= cc2->value; | |
4047 | return 1; | |
4048 | } | |
4049 | ||
4050 | static int | |
4051 | encode_operand (insn, type, operand) | |
1aea3bb8 NC |
4052 | tic54x_insn *insn; |
4053 | enum optype type; | |
4054 | struct opstruct *operand; | |
39bec121 | 4055 | { |
6e917903 | 4056 | int ext = (insn->tm->flags & FL_EXT) != 0; |
39bec121 TW |
4057 | |
4058 | if (type == OP_MMR && operand->exp.X_op != O_constant) | |
4059 | { | |
d0313fb7 | 4060 | /* Disallow long-constant addressing for memory-mapped addressing. */ |
39bec121 | 4061 | if (insn->is_lkaddr) |
9a736b6b NC |
4062 | { |
4063 | as_bad (_("lk addressing modes are invalid for memory-mapped " | |
4064 | "register addressing")); | |
4065 | return 0; | |
4066 | } | |
39bec121 | 4067 | type = OP_Smem; |
d0313fb7 | 4068 | /* Warn about *+ARx when used with MMR operands. */ |
39bec121 | 4069 | if (strncasecmp (operand->buf, "*+ar", 4) == 0) |
9a736b6b NC |
4070 | { |
4071 | as_warn (_("Address mode *+ARx is not allowed in memory-mapped " | |
4072 | "register addressing. Resulting behavior is " | |
4073 | "undefined.")); | |
4074 | } | |
39bec121 TW |
4075 | } |
4076 | ||
4077 | switch (type) | |
4078 | { | |
4079 | case OP_None: | |
4080 | return 1; | |
4081 | case OP_dmad: | |
d0313fb7 | 4082 | /* 16-bit immediate value. */ |
39bec121 TW |
4083 | return encode_dmad (insn, operand, 0); |
4084 | case OP_SRC: | |
3882b010 | 4085 | if (TOUPPER (*operand->buf) == 'B') |
9a736b6b NC |
4086 | { |
4087 | insn->opcode[ext ? (1 + insn->is_lkaddr) : 0].word |= (1 << 9); | |
4088 | if (insn->using_default_dst) | |
4089 | insn->opcode[ext ? (1 + insn->is_lkaddr) : 0].word |= (1 << 8); | |
4090 | } | |
39bec121 TW |
4091 | return 1; |
4092 | case OP_RND: | |
5f5e16be | 4093 | /* Make sure this agrees with the OP_DST operand. */ |
3882b010 | 4094 | if (!((TOUPPER (operand->buf[0]) == 'B') ^ |
9a736b6b NC |
4095 | ((insn->opcode[0].word & (1 << 8)) != 0))) |
4096 | { | |
4097 | as_bad (_("Destination accumulator for each part of this parallel " | |
4098 | "instruction must be different")); | |
4099 | return 0; | |
4100 | } | |
39bec121 TW |
4101 | return 1; |
4102 | case OP_SRC1: | |
4103 | case OP_DST: | |
3882b010 | 4104 | if (TOUPPER (operand->buf[0]) == 'B') |
9a736b6b | 4105 | insn->opcode[ext ? (1 + insn->is_lkaddr) : 0].word |= (1 << 8); |
39bec121 TW |
4106 | return 1; |
4107 | case OP_Xmem: | |
4108 | case OP_Ymem: | |
1aea3bb8 | 4109 | { |
9a736b6b NC |
4110 | int mod = (operand->buf[4] == '\0' ? 0 : /* *arx */ |
4111 | operand->buf[4] == '-' ? 1 : /* *arx- */ | |
4112 | operand->buf[5] == '\0' ? 2 : 3); /* *arx+, *arx+0% */ | |
1aea3bb8 NC |
4113 | int arf = operand->buf[3] - '0' - 2; |
4114 | int code = (mod << 2) | arf; | |
4115 | insn->opcode[0].word |= (code << (type == OP_Xmem ? 4 : 0)); | |
4116 | return 1; | |
4117 | } | |
39bec121 TW |
4118 | case OP_Lmem: |
4119 | case OP_Smem: | |
4120 | if (!is_indirect (operand)) | |
9a736b6b NC |
4121 | return encode_address (insn, operand); |
4122 | /* Fall through. */ | |
39bec121 TW |
4123 | case OP_Sind: |
4124 | return encode_indirect (insn, operand); | |
4125 | case OP_xpmad_ms7: | |
4126 | return encode_dmad (insn, operand, 2); | |
4127 | case OP_xpmad: | |
4128 | return encode_dmad (insn, operand, 1); | |
4129 | case OP_PA: | |
4130 | case OP_pmad: | |
4131 | return encode_dmad (insn, operand, 0); | |
4132 | case OP_ARX: | |
4133 | return encode_arx (insn, operand); | |
4134 | case OP_MMRX: | |
4135 | case OP_MMRY: | |
4136 | case OP_MMR: | |
1aea3bb8 NC |
4137 | { |
4138 | int value = operand->exp.X_add_number; | |
4139 | ||
4140 | if (type == OP_MMR) | |
4141 | insn->opcode[0].word |= value; | |
4142 | else | |
4143 | { | |
4144 | if (value < 16 || value > 24) | |
4145 | { | |
4146 | as_bad (_("Memory mapped register \"%s\" out of range"), | |
4147 | operand->buf); | |
4148 | return 0; | |
4149 | } | |
4150 | if (type == OP_MMRX) | |
4151 | insn->opcode[0].word |= (value - 16) << 4; | |
4152 | else | |
4153 | insn->opcode[0].word |= (value - 16); | |
4154 | } | |
4155 | return 1; | |
39bec121 | 4156 | } |
39bec121 TW |
4157 | case OP_B: |
4158 | case OP_A: | |
4159 | return 1; | |
4160 | case OP_SHFT: | |
1aea3bb8 | 4161 | return encode_integer (insn, operand, ext + insn->is_lkaddr, |
9a736b6b | 4162 | 0, 15, 0xF); |
39bec121 | 4163 | case OP_SHIFT: |
1aea3bb8 | 4164 | return encode_integer (insn, operand, ext + insn->is_lkaddr, |
9a736b6b | 4165 | -16, 15, 0x1F); |
39bec121 TW |
4166 | case OP_lk: |
4167 | return encode_integer (insn, operand, 1 + insn->is_lkaddr, | |
9a736b6b | 4168 | -32768, 32767, 0xFFFF); |
39bec121 TW |
4169 | case OP_CC: |
4170 | return encode_condition (insn, operand); | |
4171 | case OP_CC2: | |
4172 | return encode_cc2 (insn, operand); | |
4173 | case OP_CC3: | |
4174 | return encode_cc3 (insn, operand); | |
4175 | case OP_BITC: | |
4176 | return encode_integer (insn, operand, 0, 0, 15, 0xF); | |
4177 | case OP_k8: | |
4178 | return encode_integer (insn, operand, 0, -128, 127, 0xFF); | |
4179 | case OP_123: | |
1aea3bb8 NC |
4180 | { |
4181 | int value = operand->exp.X_add_number; | |
4182 | int code; | |
4183 | if (value < 1 || value > 3) | |
4184 | { | |
4185 | as_bad (_("Invalid operand (use 1, 2, or 3)")); | |
4186 | return 0; | |
4187 | } | |
4188 | code = value == 1 ? 0 : value == 2 ? 0x2 : 0x1; | |
4189 | insn->opcode[0].word |= (code << 8); | |
4190 | return 1; | |
4191 | } | |
39bec121 TW |
4192 | case OP_031: |
4193 | return encode_integer (insn, operand, 0, 0, 31, 0x1F); | |
4194 | case OP_k8u: | |
4195 | return encode_integer (insn, operand, 0, 0, 255, 0xFF); | |
4196 | case OP_lku: | |
1aea3bb8 | 4197 | return encode_integer (insn, operand, 1 + insn->is_lkaddr, |
9a736b6b | 4198 | 0, 65535, 0xFFFF); |
39bec121 | 4199 | case OP_SBIT: |
1aea3bb8 NC |
4200 | { |
4201 | symbol *sbit = (symbol *) hash_find (sbit_hash, operand->buf); | |
4202 | int value = is_absolute (operand) ? | |
4203 | operand->exp.X_add_number : (sbit ? sbit->value : -1); | |
4204 | int reg = 0; | |
4205 | ||
4206 | if (insn->opcount == 1) | |
4207 | { | |
4208 | if (!sbit) | |
4209 | { | |
4210 | as_bad (_("A status register or status bit name is required")); | |
4211 | return 0; | |
4212 | } | |
4213 | /* Guess the register based on the status bit; "ovb" is the last | |
4214 | status bit defined for st0. */ | |
4215 | if (sbit > (symbol *) hash_find (sbit_hash, "ovb")) | |
4216 | reg = 1; | |
4217 | } | |
4218 | if (value == -1) | |
4219 | { | |
4220 | as_bad (_("Unrecognized status bit \"%s\""), operand->buf); | |
4221 | return 0; | |
4222 | } | |
4223 | insn->opcode[0].word |= value; | |
4224 | insn->opcode[0].word |= (reg << 9); | |
4225 | return 1; | |
4226 | } | |
39bec121 TW |
4227 | case OP_N: |
4228 | if (strcasecmp (operand->buf, "st0") == 0 | |
9a736b6b NC |
4229 | || strcasecmp (operand->buf, "st1") == 0) |
4230 | { | |
4231 | insn->opcode[0].word |= | |
4232 | ((unsigned short) (operand->buf[2] - '0')) << 9; | |
4233 | return 1; | |
4234 | } | |
39bec121 | 4235 | else if (operand->exp.X_op == O_constant |
9a736b6b NC |
4236 | && (operand->exp.X_add_number == 0 |
4237 | || operand->exp.X_add_number == 1)) | |
4238 | { | |
4239 | insn->opcode[0].word |= | |
4240 | ((unsigned short) (operand->exp.X_add_number)) << 9; | |
4241 | return 1; | |
4242 | } | |
39bec121 TW |
4243 | as_bad (_("Invalid status register \"%s\""), operand->buf); |
4244 | return 0; | |
4245 | case OP_k5: | |
4246 | return encode_integer (insn, operand, 0, -16, 15, 0x1F); | |
4247 | case OP_k3: | |
4248 | return encode_integer (insn, operand, 0, 0, 7, 0x7); | |
4249 | case OP_k9: | |
4250 | return encode_integer (insn, operand, 0, 0, 0x1FF, 0x1FF); | |
4251 | case OP_12: | |
1aea3bb8 | 4252 | if (operand->exp.X_add_number != 1 |
9a736b6b NC |
4253 | && operand->exp.X_add_number != 2) |
4254 | { | |
4255 | as_bad (_("Operand \"%s\" out of range (use 1 or 2)"), operand->buf); | |
4256 | return 0; | |
4257 | } | |
39bec121 TW |
4258 | insn->opcode[0].word |= (operand->exp.X_add_number - 1) << 9; |
4259 | return 1; | |
4260 | case OP_16: | |
4261 | case OP_T: | |
4262 | case OP_TS: | |
4263 | case OP_ASM: | |
4264 | case OP_TRN: | |
4265 | case OP_DP: | |
4266 | case OP_ARP: | |
d0313fb7 | 4267 | /* No encoding necessary. */ |
39bec121 TW |
4268 | return 1; |
4269 | default: | |
4270 | return 0; | |
4271 | } | |
4272 | ||
4273 | return 1; | |
4274 | } | |
4275 | ||
4276 | static void | |
f1e7a2c9 NC |
4277 | emit_insn (insn) |
4278 | tic54x_insn *insn; | |
39bec121 TW |
4279 | { |
4280 | int i; | |
6e917903 TW |
4281 | flagword oldflags = bfd_get_section_flags (stdoutput, now_seg); |
4282 | flagword flags = oldflags | SEC_CODE; | |
4283 | ||
4284 | if (! bfd_set_section_flags (stdoutput, now_seg, flags)) | |
4285 | as_warn (_("error setting flags for \"%s\": %s"), | |
4286 | bfd_section_name (stdoutput, now_seg), | |
4287 | bfd_errmsg (bfd_get_error ())); | |
1aea3bb8 NC |
4288 | |
4289 | for (i = 0; i < insn->words; i++) | |
39bec121 | 4290 | { |
1aea3bb8 | 4291 | int size = (insn->opcode[i].unresolved |
9a736b6b | 4292 | && insn->opcode[i].r_type == BFD_RELOC_TIC54X_23) ? 4 : 2; |
39bec121 TW |
4293 | char *p = frag_more (size); |
4294 | ||
4295 | if (size == 2) | |
9a736b6b | 4296 | md_number_to_chars (p, (valueT) insn->opcode[i].word, 2); |
39bec121 | 4297 | else |
9a736b6b | 4298 | md_number_to_chars (p, (valueT) insn->opcode[i].word << 16, 4); |
1aea3bb8 | 4299 | |
39bec121 | 4300 | if (insn->opcode[i].unresolved) |
9a736b6b NC |
4301 | fix_new_exp (frag_now, p - frag_now->fr_literal, |
4302 | insn->opcode[i].r_nchars, &insn->opcode[i].addr_expr, | |
b34976b6 | 4303 | FALSE, insn->opcode[i].r_type); |
39bec121 TW |
4304 | } |
4305 | } | |
4306 | ||
1aea3bb8 | 4307 | /* Convert the operand strings into appropriate opcode values |
d0313fb7 | 4308 | return the total number of words used by the instruction. */ |
9a736b6b | 4309 | |
39bec121 | 4310 | static int |
f1e7a2c9 NC |
4311 | build_insn (insn) |
4312 | tic54x_insn *insn; | |
39bec121 TW |
4313 | { |
4314 | int i; | |
4315 | ||
d0313fb7 | 4316 | /* Only non-parallel instructions support lk addressing. */ |
6e917903 | 4317 | if (!(insn->tm->flags & FL_PAR)) |
39bec121 | 4318 | { |
1aea3bb8 | 4319 | for (i = 0; i < insn->opcount; i++) |
9a736b6b NC |
4320 | { |
4321 | if ((OPTYPE (insn->operands[i].type) == OP_Smem | |
4322 | || OPTYPE (insn->operands[i].type) == OP_Lmem | |
4323 | || OPTYPE (insn->operands[i].type) == OP_Sind) | |
4324 | && strchr (insn->operands[i].buf, '(') | |
4325 | /* Don't mistake stack-relative addressing for lk addressing. */ | |
4326 | && strncasecmp (insn->operands[i].buf, "*sp (", 4) != 0) | |
4327 | { | |
4328 | insn->is_lkaddr = 1; | |
4329 | insn->lkoperand = i; | |
4330 | break; | |
4331 | } | |
4332 | } | |
39bec121 | 4333 | } |
6e917903 | 4334 | insn->words = insn->tm->words + insn->is_lkaddr; |
39bec121 | 4335 | |
6e917903 TW |
4336 | insn->opcode[0].word = insn->tm->opcode; |
4337 | if (insn->tm->flags & FL_EXT) | |
1aea3bb8 | 4338 | insn->opcode[1 + insn->is_lkaddr].word = insn->tm->opcode2; |
39bec121 | 4339 | |
9a736b6b | 4340 | for (i = 0; i < insn->opcount; i++) |
39bec121 TW |
4341 | { |
4342 | enum optype type = insn->operands[i].type; | |
f1e7a2c9 | 4343 | |
39bec121 | 4344 | if (!encode_operand (insn, type, &insn->operands[i])) |
9a736b6b | 4345 | return 0; |
39bec121 | 4346 | } |
6e917903 | 4347 | if (insn->tm->flags & FL_PAR) |
9a736b6b NC |
4348 | for (i = 0; i < insn->paropcount; i++) |
4349 | { | |
4350 | enum optype partype = insn->paroperands[i].type; | |
f1e7a2c9 | 4351 | |
9a736b6b NC |
4352 | if (!encode_operand (insn, partype, &insn->paroperands[i])) |
4353 | return 0; | |
4354 | } | |
39bec121 TW |
4355 | |
4356 | emit_insn (insn); | |
4357 | ||
4358 | return insn->words; | |
4359 | } | |
4360 | ||
4361 | static int | |
f1e7a2c9 NC |
4362 | optimize_insn (insn) |
4363 | tic54x_insn *insn; | |
39bec121 | 4364 | { |
1aea3bb8 | 4365 | /* Optimize some instructions, helping out the brain-dead programmer. */ |
39bec121 TW |
4366 | #define is_zero(op) ((op).exp.X_op == O_constant && (op).exp.X_add_number == 0) |
4367 | if (strcasecmp (insn->tm->name, "add") == 0) | |
4368 | { | |
9a736b6b NC |
4369 | if (insn->opcount > 1 |
4370 | && is_accumulator (&insn->operands[insn->opcount - 2]) | |
4371 | && is_accumulator (&insn->operands[insn->opcount - 1]) | |
4372 | && strcasecmp (insn->operands[insn->opcount - 2].buf, | |
4373 | insn->operands[insn->opcount - 1].buf) == 0) | |
4374 | { | |
4375 | --insn->opcount; | |
4376 | insn->using_default_dst = 1; | |
4377 | return 1; | |
4378 | } | |
1aea3bb8 | 4379 | |
d0313fb7 | 4380 | /* Try to collapse if Xmem and shift count is zero. */ |
9a736b6b NC |
4381 | if ((OPTYPE (insn->tm->operand_types[0]) == OP_Xmem |
4382 | && OPTYPE (insn->tm->operand_types[1]) == OP_SHFT | |
4383 | && is_zero (insn->operands[1])) | |
4384 | /* Or if Smem, shift is zero or absent, and SRC == DST. */ | |
4385 | || (OPTYPE (insn->tm->operand_types[0]) == OP_Smem | |
4386 | && OPTYPE (insn->tm->operand_types[1]) == OP_SHIFT | |
4387 | && is_type (&insn->operands[1], OP_SHIFT) | |
4388 | && is_zero (insn->operands[1]) && insn->opcount == 3)) | |
4389 | { | |
4390 | insn->operands[1] = insn->operands[2]; | |
4391 | insn->opcount = 2; | |
4392 | return 1; | |
4393 | } | |
39bec121 TW |
4394 | } |
4395 | else if (strcasecmp (insn->tm->name, "ld") == 0) | |
4396 | { | |
4397 | if (insn->opcount == 3 && insn->operands[0].type != OP_SRC) | |
9a736b6b NC |
4398 | { |
4399 | if ((OPTYPE (insn->tm->operand_types[1]) == OP_SHIFT | |
4400 | || OPTYPE (insn->tm->operand_types[1]) == OP_SHFT) | |
4401 | && is_zero (insn->operands[1]) | |
4402 | && (OPTYPE (insn->tm->operand_types[0]) != OP_lk | |
4403 | || (insn->operands[0].exp.X_op == O_constant | |
4404 | && insn->operands[0].exp.X_add_number <= 255 | |
4405 | && insn->operands[0].exp.X_add_number >= 0))) | |
4406 | { | |
4407 | insn->operands[1] = insn->operands[2]; | |
4408 | insn->opcount = 2; | |
4409 | return 1; | |
4410 | } | |
4411 | } | |
4412 | } | |
4413 | else if (strcasecmp (insn->tm->name, "sth") == 0 | |
4414 | || strcasecmp (insn->tm->name, "stl") == 0) | |
4415 | { | |
4416 | if ((OPTYPE (insn->tm->operand_types[1]) == OP_SHIFT | |
4417 | || OPTYPE (insn->tm->operand_types[1]) == OP_SHFT) | |
4418 | && is_zero (insn->operands[1])) | |
4419 | { | |
4420 | insn->operands[1] = insn->operands[2]; | |
4421 | insn->opcount = 2; | |
4422 | return 1; | |
4423 | } | |
39bec121 TW |
4424 | } |
4425 | else if (strcasecmp (insn->tm->name, "sub") == 0) | |
4426 | { | |
9a736b6b NC |
4427 | if (insn->opcount > 1 |
4428 | && is_accumulator (&insn->operands[insn->opcount - 2]) | |
4429 | && is_accumulator (&insn->operands[insn->opcount - 1]) | |
4430 | && strcasecmp (insn->operands[insn->opcount - 2].buf, | |
4431 | insn->operands[insn->opcount - 1].buf) == 0) | |
4432 | { | |
4433 | --insn->opcount; | |
4434 | insn->using_default_dst = 1; | |
4435 | return 1; | |
4436 | } | |
4437 | ||
f1e7a2c9 | 4438 | if ( ((OPTYPE (insn->tm->operand_types[0]) == OP_Smem |
9a736b6b NC |
4439 | && OPTYPE (insn->tm->operand_types[1]) == OP_SHIFT) |
4440 | || (OPTYPE (insn->tm->operand_types[0]) == OP_Xmem | |
f1e7a2c9 | 4441 | && OPTYPE (insn->tm->operand_types[1]) == OP_SHFT)) |
9a736b6b NC |
4442 | && is_zero (insn->operands[1]) |
4443 | && insn->opcount == 3) | |
4444 | { | |
4445 | insn->operands[1] = insn->operands[2]; | |
4446 | insn->opcount = 2; | |
4447 | return 1; | |
4448 | } | |
39bec121 TW |
4449 | } |
4450 | return 0; | |
4451 | } | |
4452 | ||
d0313fb7 | 4453 | /* Find a matching template if possible, and get the operand strings. */ |
9a736b6b | 4454 | |
39bec121 | 4455 | static int |
f1e7a2c9 NC |
4456 | tic54x_parse_insn (insn, line) |
4457 | tic54x_insn *insn; | |
4458 | char *line; | |
39bec121 | 4459 | { |
1aea3bb8 | 4460 | insn->tm = (template *) hash_find (op_hash, insn->mnemonic); |
39bec121 TW |
4461 | if (!insn->tm) |
4462 | { | |
4463 | as_bad (_("Unrecognized instruction \"%s\""), insn->mnemonic); | |
4464 | return 0; | |
4465 | } | |
4466 | ||
4467 | insn->opcount = get_operands (insn->operands, line); | |
4468 | if (insn->opcount < 0) | |
1aea3bb8 | 4469 | return 0; |
39bec121 | 4470 | |
d0313fb7 | 4471 | /* Check each variation of operands for this mnemonic. */ |
39bec121 TW |
4472 | while (insn->tm->name && strcasecmp (insn->tm->name, insn->mnemonic) == 0) |
4473 | { | |
9a736b6b NC |
4474 | if (insn->opcount >= insn->tm->minops |
4475 | && insn->opcount <= insn->tm->maxops | |
4476 | && operands_match (insn, &insn->operands[0], insn->opcount, | |
4477 | insn->tm->operand_types, | |
4478 | insn->tm->minops, insn->tm->maxops)) | |
4479 | { | |
4480 | /* SUCCESS! now try some optimizations. */ | |
4481 | if (optimize_insn (insn)) | |
4482 | { | |
4483 | insn->tm = (template *) hash_find (op_hash, | |
1aea3bb8 | 4484 | insn->mnemonic); |
9a736b6b NC |
4485 | continue; |
4486 | } | |
39bec121 | 4487 | |
9a736b6b NC |
4488 | return 1; |
4489 | } | |
39bec121 TW |
4490 | ++(insn->tm); |
4491 | } | |
1aea3bb8 NC |
4492 | as_bad (_("Unrecognized operand list '%s' for instruction '%s'"), |
4493 | line, insn->mnemonic); | |
39bec121 TW |
4494 | return 0; |
4495 | } | |
4496 | ||
d0313fb7 NC |
4497 | /* We set this in start_line_hook, 'cause if we do a line replacement, we |
4498 | won't be able to see the next line. */ | |
39bec121 | 4499 | static int parallel_on_next_line_hint = 0; |
9a736b6b | 4500 | |
39bec121 | 4501 | /* See if this is part of a parallel instruction |
d0313fb7 | 4502 | Look for a subsequent line starting with "||". */ |
9a736b6b | 4503 | |
39bec121 | 4504 | static int |
f1e7a2c9 NC |
4505 | next_line_shows_parallel (next_line) |
4506 | char *next_line; | |
39bec121 | 4507 | { |
9a736b6b | 4508 | /* Look for the second half. */ |
3882b010 | 4509 | while (ISSPACE (*next_line)) |
39bec121 TW |
4510 | ++next_line; |
4511 | ||
9a736b6b NC |
4512 | return (next_line[0] == PARALLEL_SEPARATOR |
4513 | && next_line[1] == PARALLEL_SEPARATOR); | |
39bec121 TW |
4514 | } |
4515 | ||
4516 | static int | |
f1e7a2c9 NC |
4517 | tic54x_parse_parallel_insn_firstline (insn, line) |
4518 | tic54x_insn *insn; | |
4519 | char *line; | |
39bec121 | 4520 | { |
6e917903 TW |
4521 | insn->tm = (template *) hash_find (parop_hash, insn->mnemonic); |
4522 | if (!insn->tm) | |
39bec121 | 4523 | { |
1aea3bb8 | 4524 | as_bad (_("Unrecognized parallel instruction \"%s\""), |
9a736b6b | 4525 | insn->mnemonic); |
39bec121 TW |
4526 | return 0; |
4527 | } | |
4528 | ||
6e917903 TW |
4529 | while (insn->tm->name && strcasecmp (insn->tm->name, |
4530 | insn->mnemonic) == 0) | |
39bec121 TW |
4531 | { |
4532 | insn->opcount = get_operands (insn->operands, line); | |
4533 | if (insn->opcount < 0) | |
9a736b6b NC |
4534 | return 0; |
4535 | if (insn->opcount == 2 | |
4536 | && operands_match (insn, &insn->operands[0], insn->opcount, | |
6e917903 | 4537 | insn->tm->operand_types, 2, 2)) |
9a736b6b NC |
4538 | { |
4539 | return 1; | |
4540 | } | |
6e917903 | 4541 | ++(insn->tm); |
39bec121 | 4542 | } |
d0313fb7 | 4543 | /* Didn't find a matching parallel; try for a normal insn. */ |
39bec121 TW |
4544 | return 0; |
4545 | } | |
4546 | ||
d0313fb7 | 4547 | /* Parse the second line of a two-line parallel instruction. */ |
9a736b6b | 4548 | |
39bec121 | 4549 | static int |
f1e7a2c9 NC |
4550 | tic54x_parse_parallel_insn_lastline (insn, line) |
4551 | tic54x_insn *insn; | |
4552 | char *line; | |
39bec121 TW |
4553 | { |
4554 | int valid_mnemonic = 0; | |
1aea3bb8 | 4555 | |
39bec121 | 4556 | insn->paropcount = get_operands (insn->paroperands, line); |
6e917903 | 4557 | while (insn->tm->name && strcasecmp (insn->tm->name, |
9a736b6b | 4558 | insn->mnemonic) == 0) |
39bec121 | 4559 | { |
6e917903 | 4560 | if (strcasecmp (insn->tm->parname, insn->parmnemonic) == 0) |
9a736b6b NC |
4561 | { |
4562 | valid_mnemonic = 1; | |
f1e7a2c9 | 4563 | |
6e917903 TW |
4564 | if (insn->paropcount >= insn->tm->minops |
4565 | && insn->paropcount <= insn->tm->maxops | |
9a736b6b NC |
4566 | && operands_match (insn, insn->paroperands, |
4567 | insn->paropcount, | |
6e917903 TW |
4568 | insn->tm->paroperand_types, |
4569 | insn->tm->minops, insn->tm->maxops)) | |
f1e7a2c9 | 4570 | return 1; |
9a736b6b | 4571 | } |
6e917903 | 4572 | ++(insn->tm); |
39bec121 TW |
4573 | } |
4574 | if (valid_mnemonic) | |
4575 | as_bad (_("Invalid operand (s) for parallel instruction \"%s\""), | |
9a736b6b | 4576 | insn->parmnemonic); |
39bec121 TW |
4577 | else |
4578 | as_bad (_("Unrecognized parallel instruction combination \"%s || %s\""), | |
9a736b6b | 4579 | insn->mnemonic, insn->parmnemonic); |
39bec121 TW |
4580 | |
4581 | return 0; | |
4582 | } | |
4583 | ||
d0313fb7 | 4584 | /* If quotes found, return copy of line up to closing quote; |
9a736b6b NC |
4585 | otherwise up until terminator. |
4586 | If it's a string, pass as-is; otherwise attempt substitution symbol | |
d0313fb7 | 4587 | replacement on the value. */ |
9a736b6b | 4588 | |
39bec121 | 4589 | static char * |
f1e7a2c9 NC |
4590 | subsym_get_arg (line, terminators, str, nosub) |
4591 | char *line; | |
4592 | char *terminators; | |
4593 | char **str; | |
4594 | int nosub; | |
39bec121 TW |
4595 | { |
4596 | char *ptr = line; | |
4597 | char *endp; | |
4598 | int is_string = *line == '"'; | |
3882b010 | 4599 | int is_char = ISDIGIT (*line); |
39bec121 TW |
4600 | |
4601 | if (is_char) | |
4602 | { | |
3882b010 | 4603 | while (ISDIGIT (*ptr)) |
9a736b6b | 4604 | ++ptr; |
39bec121 TW |
4605 | endp = ptr; |
4606 | *str = xmalloc (ptr - line + 1); | |
4607 | strncpy (*str, line, ptr - line); | |
4608 | (*str)[ptr - line] = 0; | |
4609 | } | |
4610 | else if (is_string) | |
4611 | { | |
4612 | char *savedp = input_line_pointer; | |
4613 | int len; | |
f1e7a2c9 | 4614 | |
39bec121 TW |
4615 | input_line_pointer = ptr; |
4616 | *str = demand_copy_C_string (&len); | |
4617 | endp = input_line_pointer; | |
4618 | input_line_pointer = savedp; | |
4619 | ||
d0313fb7 | 4620 | /* Do forced substitutions if requested. */ |
39bec121 | 4621 | if (!nosub && **str == ':') |
9a736b6b | 4622 | *str = subsym_substitute (*str, 1); |
39bec121 TW |
4623 | } |
4624 | else | |
4625 | { | |
4626 | char *term = terminators; | |
4627 | char *value = NULL; | |
4628 | ||
4629 | while (*ptr && *ptr != *term) | |
9a736b6b NC |
4630 | { |
4631 | if (!*term) | |
4632 | { | |
4633 | term = terminators; | |
4634 | ++ptr; | |
4635 | } | |
4636 | else | |
4637 | ++term; | |
4638 | } | |
39bec121 TW |
4639 | endp = ptr; |
4640 | *str = xmalloc (ptr - line + 1); | |
4641 | strncpy (*str, line, ptr - line); | |
4642 | (*str)[ptr - line] = 0; | |
d0313fb7 | 4643 | /* Do simple substitution, if available. */ |
39bec121 | 4644 | if (!nosub && (value = subsym_lookup (*str, macro_level)) != NULL) |
1aea3bb8 | 4645 | *str = value; |
39bec121 TW |
4646 | } |
4647 | ||
4648 | return endp; | |
4649 | } | |
4650 | ||
d0313fb7 | 4651 | /* Replace the given substitution string. |
39bec121 TW |
4652 | We start at the innermost macro level, so that existing locals remain local |
4653 | Note: we're treating macro args identically to .var's; I don't know if | |
d0313fb7 | 4654 | that's compatible w/TI's assembler. */ |
9a736b6b | 4655 | |
39bec121 | 4656 | static void |
d0313fb7 NC |
4657 | subsym_create_or_replace (name, value) |
4658 | char *name; | |
4659 | char *value; | |
39bec121 TW |
4660 | { |
4661 | int i; | |
4662 | ||
1aea3bb8 | 4663 | for (i = macro_level; i > 0; i--) |
39bec121 TW |
4664 | { |
4665 | if (hash_find (subsym_hash[i], name)) | |
9a736b6b NC |
4666 | { |
4667 | hash_replace (subsym_hash[i], name, value); | |
4668 | return; | |
4669 | } | |
39bec121 TW |
4670 | } |
4671 | if (hash_find (subsym_hash[0], name)) | |
4672 | hash_replace (subsym_hash[0], name, value); | |
4673 | else | |
4674 | hash_insert (subsym_hash[0], name, value); | |
4675 | } | |
4676 | ||
9a736b6b | 4677 | /* Look up the substitution string replacement for the given symbol. |
33b7f697 | 4678 | Start with the innermost macro substitution table given and work |
9a736b6b NC |
4679 | outwards. */ |
4680 | ||
39bec121 | 4681 | static char * |
d0313fb7 NC |
4682 | subsym_lookup (name, nest_level) |
4683 | char *name; | |
4684 | int nest_level; | |
39bec121 TW |
4685 | { |
4686 | char *value = hash_find (subsym_hash[nest_level], name); | |
4687 | ||
4688 | if (value || nest_level == 0) | |
4689 | return value; | |
4690 | ||
1aea3bb8 | 4691 | return subsym_lookup (name, nest_level - 1); |
39bec121 TW |
4692 | } |
4693 | ||
d0313fb7 | 4694 | /* Do substitution-symbol replacement on the given line (recursively). |
1aea3bb8 | 4695 | return the argument if no substitution was done |
39bec121 TW |
4696 | |
4697 | Also look for built-in functions ($func (arg)) and local labels. | |
4698 | ||
d0313fb7 | 4699 | If FORCED is set, look for forced substitutions of the form ':SYMBOL:'. */ |
9a736b6b | 4700 | |
39bec121 | 4701 | static char * |
f1e7a2c9 NC |
4702 | subsym_substitute (line, forced) |
4703 | char * line; | |
4704 | int forced; | |
39bec121 | 4705 | { |
d0313fb7 NC |
4706 | /* For each apparent symbol, see if it's a substitution symbol, and if so, |
4707 | replace it in the input. */ | |
9a736b6b NC |
4708 | char *replacement; /* current replacement for LINE. */ |
4709 | char *head; /* Start of line. */ | |
4710 | char *ptr; /* Current examination point. */ | |
4711 | int changed = 0; /* Did we make a substitution? */ | |
4712 | int eval_line = 0; /* Is this line a .eval/.asg statement? */ | |
4713 | int eval_symbol = 0; /* Are we in the middle of the symbol for | |
4714 | .eval/.asg? */ | |
39bec121 TW |
4715 | char *eval_end = NULL; |
4716 | int recurse = 1; | |
4717 | int line_conditional = 0; | |
4718 | char *tmp; | |
4719 | ||
d0313fb7 | 4720 | /* Work with a copy of the input line. */ |
39bec121 TW |
4721 | replacement = xmalloc (strlen (line) + 1); |
4722 | strcpy (replacement, line); | |
4723 | ||
4724 | ptr = head = replacement; | |
4725 | ||
d0313fb7 | 4726 | /* Flag lines where we might need to replace a single '=' with two; |
39bec121 | 4727 | GAS uses single '=' to assign macro args values, and possibly other |
d0313fb7 | 4728 | places, so limit what we replace. */ |
1aea3bb8 NC |
4729 | if (strstr (line, ".if") |
4730 | || strstr (line, ".elseif") | |
39bec121 | 4731 | || strstr (line, ".break")) |
f1e7a2c9 | 4732 | line_conditional = 1; |
39bec121 | 4733 | |
d0313fb7 NC |
4734 | /* Watch out for .eval, so that we avoid doing substitution on the |
4735 | symbol being assigned a value. */ | |
39bec121 | 4736 | if (strstr (line, ".eval") || strstr (line, ".asg")) |
1aea3bb8 | 4737 | eval_line = 1; |
39bec121 | 4738 | |
9a736b6b NC |
4739 | /* If it's a macro definition, don't do substitution on the argument |
4740 | names. */ | |
39bec121 TW |
4741 | if (strstr (line, ".macro")) |
4742 | return line; | |
4743 | ||
1aea3bb8 | 4744 | while (!is_end_of_line[(int) *ptr]) |
39bec121 TW |
4745 | { |
4746 | int current_char = *ptr; | |
4747 | ||
d0313fb7 | 4748 | /* Need to update this since LINE may have been modified. */ |
39bec121 | 4749 | if (eval_line) |
1aea3bb8 | 4750 | eval_end = strrchr (ptr, ','); |
39bec121 | 4751 | |
d0313fb7 | 4752 | /* Replace triple double quotes with bounding quote/escapes. */ |
39bec121 | 4753 | if (current_char == '"' && ptr[1] == '"' && ptr[2] == '"') |
9a736b6b NC |
4754 | { |
4755 | ptr[1] = '\\'; | |
4756 | tmp = strstr (ptr + 2, "\"\"\""); | |
4757 | if (tmp) | |
4758 | tmp[0] = '\\'; | |
4759 | changed = 1; | |
4760 | } | |
39bec121 | 4761 | |
d0313fb7 | 4762 | /* Replace a single '=' with a '=='; |
9a736b6b | 4763 | for compatibility with older code only. */ |
1aea3bb8 | 4764 | if (line_conditional && current_char == '=') |
9a736b6b NC |
4765 | { |
4766 | if (ptr[1] == '=') | |
4767 | { | |
4768 | ptr += 2; | |
4769 | continue; | |
4770 | } | |
4771 | *ptr++ = '\0'; | |
4772 | tmp = xmalloc (strlen (head) + 2 + strlen (ptr) + 1); | |
4773 | sprintf (tmp, "%s==%s", head, ptr); | |
4774 | /* Continue examining after the '=='. */ | |
4775 | ptr = tmp + strlen (head) + 2; | |
4776 | free (replacement); | |
4777 | head = replacement = tmp; | |
4778 | changed = 1; | |
4779 | } | |
39bec121 | 4780 | |
d0313fb7 | 4781 | /* Flag when we've reached the symbol part of .eval/.asg. */ |
39bec121 | 4782 | if (eval_line && ptr >= eval_end) |
9a736b6b | 4783 | eval_symbol = 1; |
39bec121 | 4784 | |
d0313fb7 | 4785 | /* For each apparent symbol, see if it's a substitution symbol, and if |
9a736b6b | 4786 | so, replace it in the input. */ |
39bec121 | 4787 | if ((forced && current_char == ':') |
9a736b6b NC |
4788 | || (!forced && is_name_beginner (current_char))) |
4789 | { | |
4790 | char *name; /* Symbol to be replaced. */ | |
4791 | char *savedp = input_line_pointer; | |
4792 | int c; | |
4793 | char *value = NULL; | |
4794 | char *tail; /* Rest of line after symbol. */ | |
4795 | ||
4796 | /* Skip the colon. */ | |
4797 | if (forced) | |
4798 | ++ptr; | |
4799 | ||
4800 | name = input_line_pointer = ptr; | |
4801 | c = get_symbol_end (); | |
4802 | /* '?' is not normally part of a symbol, but it IS part of a local | |
4803 | label. */ | |
4804 | if (c == '?') | |
4805 | { | |
4806 | *input_line_pointer++ = c; | |
4807 | c = *input_line_pointer; | |
4808 | *input_line_pointer = '\0'; | |
4809 | } | |
4810 | /* Avoid infinite recursion; if a symbol shows up a second time for | |
4811 | substitution, leave it as is. */ | |
4812 | if (hash_find (subsym_recurse_hash, name) == NULL) | |
4813 | value = subsym_lookup (name, macro_level); | |
4814 | else | |
4815 | as_warn (_("%s symbol recursion stopped at " | |
4816 | "second appearance of '%s'"), | |
4817 | forced ? "Forced substitution" : "Substitution", name); | |
4818 | ptr = tail = input_line_pointer; | |
4819 | input_line_pointer = savedp; | |
4820 | ||
4821 | /* Check for local labels; replace them with the appropriate | |
4822 | substitution. */ | |
3882b010 | 4823 | if ((*name == '$' && ISDIGIT (name[1]) && name[2] == '\0') |
9a736b6b NC |
4824 | || name[strlen (name) - 1] == '?') |
4825 | { | |
4826 | /* Use an existing identifier for that label if, available, or | |
4827 | create a new, unique identifier. */ | |
4828 | value = hash_find (local_label_hash[macro_level], name); | |
4829 | if (value == NULL) | |
4830 | { | |
4831 | char digit[11]; | |
4832 | char *namecopy = strcpy (xmalloc (strlen (name) + 1), name); | |
f1e7a2c9 | 4833 | |
9a736b6b NC |
4834 | value = strcpy (xmalloc (strlen (name) + sizeof (digit) + 1), |
4835 | name); | |
4836 | if (*value != '$') | |
4837 | value[strlen (value) - 1] = '\0'; | |
4838 | sprintf (digit, ".%d", local_label_id++); | |
4839 | strcat (value, digit); | |
4840 | hash_insert (local_label_hash[macro_level], namecopy, value); | |
4841 | } | |
4842 | /* Indicate where to continue looking for substitutions. */ | |
4843 | ptr = tail; | |
4844 | } | |
4845 | /* Check for built-in subsym and math functions. */ | |
4846 | else if (value != NULL && *name == '$') | |
4847 | { | |
4848 | subsym_proc_entry *entry = (subsym_proc_entry *) value; | |
4849 | math_proc_entry *math_entry = hash_find (math_hash, name); | |
4850 | char *arg1, *arg2 = NULL; | |
4851 | ||
4852 | *ptr = c; | |
4853 | if (entry == NULL) | |
4854 | { | |
4855 | as_bad (_("Unrecognized substitution symbol function")); | |
4856 | break; | |
4857 | } | |
4858 | else if (*ptr != '(') | |
4859 | { | |
4860 | as_bad (_("Missing '(' after substitution symbol function")); | |
4861 | break; | |
4862 | } | |
4863 | ++ptr; | |
4864 | if (math_entry != NULL) | |
4865 | { | |
4866 | float arg1, arg2 = 0; | |
4867 | volatile float fresult; | |
4868 | ||
4869 | arg1 = (float) strtod (ptr, &ptr); | |
4870 | if (math_entry->nargs == 2) | |
4871 | { | |
4872 | if (*ptr++ != ',') | |
4873 | { | |
4874 | as_bad (_("Expecting second argument")); | |
4875 | break; | |
4876 | } | |
4877 | arg2 = (float) strtod (ptr, &ptr); | |
4878 | } | |
4879 | fresult = (*math_entry->proc) (arg1, arg2); | |
4880 | value = xmalloc (128); | |
4881 | if (math_entry->int_return) | |
4882 | sprintf (value, "%d", (int) fresult); | |
4883 | else | |
4884 | sprintf (value, "%f", fresult); | |
4885 | if (*ptr++ != ')') | |
4886 | { | |
4887 | as_bad (_("Extra junk in function call, expecting ')'")); | |
4888 | break; | |
4889 | } | |
4890 | /* Don't bother recursing; the replacement isn't a | |
4891 | symbol. */ | |
4892 | recurse = 0; | |
4893 | } | |
4894 | else | |
4895 | { | |
4896 | int val; | |
4897 | int arg_type[2] = { *ptr == '"' , 0 }; | |
4898 | int ismember = !strcmp (entry->name, "$ismember"); | |
f1e7a2c9 | 4899 | |
9a736b6b NC |
4900 | /* Parse one or two args, which must be a substitution |
4901 | symbol, string or a character-string constant. */ | |
4902 | /* For all functions, a string or substitution symbol may be | |
4903 | used, with the following exceptions: | |
4904 | firstch/lastch: 2nd arg must be character constant | |
4905 | ismember: both args must be substitution symbols. */ | |
4906 | ptr = subsym_get_arg (ptr, ",)", &arg1, ismember); | |
4907 | if (!arg1) | |
4908 | break; | |
4909 | if (entry->nargs == 2) | |
4910 | { | |
4911 | if (*ptr++ != ',') | |
4912 | { | |
4913 | as_bad (_("Function expects two arguments")); | |
4914 | break; | |
4915 | } | |
4916 | /* Character constants are converted to numerics | |
4917 | by the preprocessor. */ | |
3882b010 | 4918 | arg_type[1] = (ISDIGIT (*ptr)) ? 2 : (*ptr == '"'); |
9a736b6b NC |
4919 | ptr = subsym_get_arg (ptr, ")", &arg2, ismember); |
4920 | } | |
4921 | /* Args checking. */ | |
4922 | if ((!strcmp (entry->name, "$firstch") | |
4923 | || !strcmp (entry->name, "$lastch")) | |
4924 | && arg_type[1] != 2) | |
4925 | { | |
4926 | as_bad (_("Expecting character constant argument")); | |
4927 | break; | |
4928 | } | |
4929 | if (ismember | |
4930 | && (arg_type[0] != 0 || arg_type[1] != 0)) | |
4931 | { | |
4932 | as_bad (_("Both arguments must be substitution symbols")); | |
4933 | break; | |
4934 | } | |
4935 | if (*ptr++ != ')') | |
4936 | { | |
4937 | as_bad (_("Extra junk in function call, expecting ')'")); | |
4938 | break; | |
4939 | } | |
4940 | val = (*entry->proc) (arg1, arg2); | |
4941 | value = xmalloc (64); | |
4942 | sprintf (value, "%d", val); | |
4943 | } | |
4944 | /* Fix things up to replace the entire expression, not just the | |
4945 | function name. */ | |
4946 | tail = ptr; | |
4947 | c = *tail; | |
4948 | } | |
4949 | ||
4950 | if (value != NULL && !eval_symbol) | |
4951 | { | |
4952 | /* Replace the symbol with its string replacement and | |
4953 | continue. Recursively replace VALUE until either no | |
4954 | substitutions are performed, or a substitution that has been | |
4955 | previously made is encountered again. | |
4956 | ||
4957 | put the symbol into the recursion hash table so we only | |
4958 | try to replace a symbol once. */ | |
4959 | if (recurse) | |
4960 | { | |
4961 | hash_insert (subsym_recurse_hash, name, name); | |
4962 | value = subsym_substitute (value, macro_level > 0); | |
4963 | hash_delete (subsym_recurse_hash, name); | |
4964 | } | |
4965 | ||
4966 | /* Temporarily zero-terminate where the symbol started. */ | |
4967 | *name = 0; | |
4968 | if (forced) | |
4969 | { | |
4970 | if (c == '(') | |
4971 | { | |
4972 | /* Subscripted substitution symbol -- use just the | |
4973 | indicated portion of the string; the description | |
33b7f697 | 4974 | kinda indicates that forced substitution is not |
9a736b6b NC |
4975 | supposed to be recursive, but I'm not sure. */ |
4976 | unsigned beg, len = 1; /* default to a single char */ | |
4977 | char *newval = strcpy (xmalloc (strlen (value) + 1), | |
4978 | value); | |
4979 | ||
4980 | savedp = input_line_pointer; | |
4981 | input_line_pointer = tail + 1; | |
4982 | beg = get_absolute_expression (); | |
4983 | if (beg < 1) | |
4984 | { | |
4985 | as_bad (_("Invalid subscript (use 1 to %d)"), | |
8ad7c533 | 4986 | (int) strlen (value)); |
9a736b6b NC |
4987 | break; |
4988 | } | |
4989 | if (*input_line_pointer == ',') | |
4990 | { | |
4991 | ++input_line_pointer; | |
4992 | len = get_absolute_expression (); | |
4993 | if (beg + len > strlen (value)) | |
4994 | { | |
4995 | as_bad (_("Invalid length (use 0 to %d"), | |
8ad7c533 | 4996 | (int) strlen (value) - beg); |
9a736b6b NC |
4997 | break; |
4998 | } | |
4999 | } | |
5000 | newval += beg - 1; | |
5001 | newval[len] = 0; | |
5002 | tail = input_line_pointer; | |
5003 | if (*tail++ != ')') | |
5004 | { | |
5005 | as_bad (_("Missing ')' in subscripted substitution " | |
5006 | "symbol expression")); | |
5007 | break; | |
5008 | } | |
5009 | c = *tail; | |
5010 | input_line_pointer = savedp; | |
5011 | ||
5012 | value = newval; | |
5013 | } | |
5014 | name[-1] = 0; | |
5015 | } | |
5016 | tmp = xmalloc (strlen (head) + strlen (value) + | |
5017 | strlen (tail + 1) + 2); | |
5018 | strcpy (tmp, head); | |
5019 | strcat (tmp, value); | |
5020 | /* Make sure forced substitutions are properly terminated. */ | |
5021 | if (forced) | |
5022 | { | |
5023 | if (c != ':') | |
5024 | { | |
5025 | as_bad (_("Missing forced substitution terminator ':'")); | |
5026 | break; | |
5027 | } | |
5028 | ++tail; | |
9a736b6b NC |
5029 | } |
5030 | else | |
5031 | /* Restore the character after the symbol end. */ | |
5032 | *tail = c; | |
5033 | strcat (tmp, tail); | |
5034 | /* Continue examining after the replacement value. */ | |
5035 | ptr = tmp + strlen (head) + strlen (value); | |
5036 | free (replacement); | |
5037 | head = replacement = tmp; | |
5038 | changed = 1; | |
5039 | } | |
5040 | else | |
5041 | *ptr = c; | |
5042 | } | |
39bec121 | 5043 | else |
9a736b6b NC |
5044 | { |
5045 | ++ptr; | |
5046 | } | |
39bec121 TW |
5047 | } |
5048 | ||
5049 | if (changed) | |
5050 | return replacement; | |
5051 | else | |
5052 | return line; | |
5053 | } | |
5054 | ||
1aea3bb8 | 5055 | /* We use this to handle substitution symbols |
39bec121 TW |
5056 | hijack input_line_pointer, replacing it with our substituted string. |
5057 | ||
5058 | .sslist should enable listing the line after replacements are made... | |
5059 | ||
d0313fb7 | 5060 | returns the new buffer limit. */ |
9a736b6b | 5061 | |
39bec121 TW |
5062 | void |
5063 | tic54x_start_line_hook () | |
5064 | { | |
5065 | char *line, *endp; | |
5066 | char *replacement = NULL; | |
5067 | ||
d0313fb7 | 5068 | /* Work with a copy of the input line, including EOL char. */ |
39bec121 | 5069 | endp = input_line_pointer; |
1aea3bb8 | 5070 | while (!is_end_of_line[(int) *endp++]) |
39bec121 TW |
5071 | ; |
5072 | line = xmalloc (endp - input_line_pointer + 1); | |
5073 | strncpy (line, input_line_pointer, endp - input_line_pointer + 1); | |
5074 | line[endp - input_line_pointer] = 0; | |
5075 | ||
d0313fb7 | 5076 | /* Scan ahead for parallel insns. */ |
39bec121 TW |
5077 | parallel_on_next_line_hint = next_line_shows_parallel (endp + 1); |
5078 | ||
d0313fb7 | 5079 | /* If within a macro, first process forced replacements. */ |
39bec121 TW |
5080 | if (macro_level > 0) |
5081 | replacement = subsym_substitute (line, 1); | |
5082 | else | |
5083 | replacement = line; | |
5084 | replacement = subsym_substitute (replacement, 0); | |
5085 | ||
5086 | if (replacement != line) | |
5087 | { | |
5088 | char *tmp = replacement; | |
9a736b6b | 5089 | char *comment = strchr (replacement, ';'); |
1aea3bb8 | 5090 | char endc = replacement[strlen (replacement) - 1]; |
39bec121 | 5091 | |
d0313fb7 | 5092 | /* Clean up the replacement; we'd prefer to have this done by the |
9a736b6b NC |
5093 | standard preprocessing equipment (maybe do_scrub_chars?) |
5094 | but for now, do a quick-and-dirty. */ | |
39bec121 | 5095 | if (comment != NULL) |
9a736b6b NC |
5096 | { |
5097 | comment[0] = endc; | |
5098 | comment[1] = 0; | |
5099 | --comment; | |
5100 | } | |
1aea3bb8 | 5101 | else |
9a736b6b | 5102 | comment = replacement + strlen (replacement) - 1; |
39bec121 | 5103 | |
d0313fb7 | 5104 | /* Trim trailing whitespace. */ |
3882b010 | 5105 | while (ISSPACE (*comment)) |
9a736b6b NC |
5106 | { |
5107 | comment[0] = endc; | |
5108 | comment[1] = 0; | |
5109 | --comment; | |
5110 | } | |
39bec121 | 5111 | |
d0313fb7 | 5112 | /* Compact leading whitespace. */ |
3882b010 | 5113 | while (ISSPACE (tmp[0]) && ISSPACE (tmp[1])) |
9a736b6b | 5114 | ++tmp; |
39bec121 TW |
5115 | |
5116 | input_line_pointer = endp; | |
5117 | input_scrub_insert_line (tmp); | |
5118 | free (replacement); | |
5119 | free (line); | |
d0313fb7 | 5120 | /* Keep track of whether we've done a substitution. */ |
39bec121 TW |
5121 | substitution_line = 1; |
5122 | } | |
5123 | else | |
5124 | { | |
d0313fb7 | 5125 | /* No change. */ |
39bec121 TW |
5126 | free (line); |
5127 | substitution_line = 0; | |
5128 | } | |
5129 | } | |
5130 | ||
5131 | /* This is the guts of the machine-dependent assembler. STR points to a | |
5132 | machine dependent instruction. This function is supposed to emit | |
d0313fb7 | 5133 | the frags/bytes it assembles to. */ |
39bec121 TW |
5134 | void |
5135 | md_assemble (line) | |
1aea3bb8 | 5136 | char *line; |
39bec121 TW |
5137 | { |
5138 | static int repeat_slot = 0; | |
9a736b6b | 5139 | static int delay_slots = 0; /* How many delay slots left to fill? */ |
39bec121 TW |
5140 | static int is_parallel = 0; |
5141 | static tic54x_insn insn; | |
5142 | char *lptr; | |
5143 | char *savedp = input_line_pointer; | |
5144 | int c; | |
5145 | ||
5146 | input_line_pointer = line; | |
5147 | c = get_symbol_end (); | |
5148 | ||
5149 | if (cpu == VNONE) | |
5150 | cpu = V542; | |
5151 | if (address_mode_needs_set) | |
5152 | { | |
5153 | set_address_mode (amode); | |
5154 | address_mode_needs_set = 0; | |
5155 | } | |
5156 | if (cpu_needs_set) | |
5157 | { | |
5158 | set_cpu (cpu); | |
5159 | cpu_needs_set = 0; | |
5160 | } | |
5161 | assembly_begun = 1; | |
5162 | ||
5163 | if (is_parallel) | |
5164 | { | |
5165 | is_parallel = 0; | |
5166 | ||
5167 | strcpy (insn.parmnemonic, line); | |
5168 | lptr = input_line_pointer; | |
5169 | *lptr = c; | |
5170 | input_line_pointer = savedp; | |
5171 | ||
5172 | if (tic54x_parse_parallel_insn_lastline (&insn, lptr)) | |
9a736b6b NC |
5173 | { |
5174 | int words = build_insn (&insn); | |
5175 | ||
5176 | if (delay_slots != 0) | |
5177 | { | |
5178 | if (words > delay_slots) | |
5179 | { | |
5180 | as_bad (_("Instruction does not fit in available delay " | |
5181 | "slots (%d-word insn, %d slots left)"), | |
1aea3bb8 | 5182 | words, delay_slots); |
9a736b6b NC |
5183 | delay_slots = 0; |
5184 | return; | |
5185 | } | |
5186 | delay_slots -= words; | |
5187 | } | |
5188 | } | |
39bec121 TW |
5189 | return; |
5190 | } | |
5191 | ||
5192 | memset (&insn, 0, sizeof (insn)); | |
5193 | strcpy (insn.mnemonic, line); | |
5194 | lptr = input_line_pointer; | |
5195 | *lptr = c; | |
5196 | input_line_pointer = savedp; | |
1aea3bb8 | 5197 | |
39bec121 TW |
5198 | /* See if this line is part of a parallel instruction; if so, either this |
5199 | line or the next line will have the "||" specifier preceding the | |
d0313fb7 | 5200 | mnemonic, and we look for it in the parallel insn hash table. */ |
39bec121 TW |
5201 | if (strstr (line, "||") != NULL || parallel_on_next_line_hint) |
5202 | { | |
5203 | char *tmp = strstr (line, "||"); | |
5204 | if (tmp != NULL) | |
9a736b6b | 5205 | *tmp = '\0'; |
39bec121 TW |
5206 | |
5207 | if (tic54x_parse_parallel_insn_firstline (&insn, lptr)) | |
9a736b6b NC |
5208 | { |
5209 | is_parallel = 1; | |
5210 | /* If the parallel part is on the same line, process it now, | |
5211 | otherwise let the assembler pick up the next line for us. */ | |
5212 | if (tmp != NULL) | |
5213 | { | |
3882b010 | 5214 | while (ISSPACE (tmp[2])) |
9a736b6b NC |
5215 | ++tmp; |
5216 | md_assemble (tmp + 2); | |
5217 | } | |
5218 | } | |
39bec121 | 5219 | else |
9a736b6b NC |
5220 | { |
5221 | as_bad (_("Unrecognized parallel instruction '%s'"), line); | |
5222 | } | |
39bec121 TW |
5223 | return; |
5224 | } | |
5225 | ||
5226 | if (tic54x_parse_insn (&insn, lptr)) | |
5227 | { | |
5228 | int words; | |
5229 | ||
1aea3bb8 | 5230 | if ((insn.tm->flags & FL_LP) |
9a736b6b NC |
5231 | && cpu != V545LP && cpu != V546LP) |
5232 | { | |
5233 | as_bad (_("Instruction '%s' requires an LP cpu version"), | |
5234 | insn.tm->name); | |
5235 | return; | |
5236 | } | |
1aea3bb8 | 5237 | if ((insn.tm->flags & FL_FAR) |
9a736b6b NC |
5238 | && amode != far_mode) |
5239 | { | |
5240 | as_bad (_("Instruction '%s' requires far mode addressing"), | |
5241 | insn.tm->name); | |
5242 | return; | |
5243 | } | |
39bec121 TW |
5244 | |
5245 | words = build_insn (&insn); | |
5246 | ||
d0313fb7 | 5247 | /* Is this instruction in a delay slot? */ |
39bec121 | 5248 | if (delay_slots) |
9a736b6b NC |
5249 | { |
5250 | if (words > delay_slots) | |
5251 | { | |
5252 | as_warn (_("Instruction does not fit in available delay " | |
5253 | "slots (%d-word insn, %d slots left). " | |
5254 | "Resulting behavior is undefined."), | |
5255 | words, delay_slots); | |
5256 | delay_slots = 0; | |
5257 | return; | |
5258 | } | |
5259 | /* Branches in delay slots are not allowed. */ | |
5260 | if (insn.tm->flags & FL_BMASK) | |
5261 | { | |
5262 | as_warn (_("Instructions which cause PC discontinuity are not " | |
5263 | "allowed in a delay slot. " | |
5264 | "Resulting behavior is undefined.")); | |
5265 | } | |
5266 | delay_slots -= words; | |
5267 | } | |
5268 | ||
5269 | /* Is this instruction the target of a repeat? */ | |
39bec121 | 5270 | if (repeat_slot) |
9a736b6b NC |
5271 | { |
5272 | if (insn.tm->flags & FL_NR) | |
5273 | as_warn (_("'%s' is not repeatable. " | |
5274 | "Resulting behavior is undefined."), | |
5275 | insn.tm->name); | |
5276 | else if (insn.is_lkaddr) | |
5277 | as_warn (_("Instructions using long offset modifiers or absolute " | |
5278 | "addresses are not repeatable. " | |
5279 | "Resulting behavior is undefined.")); | |
5280 | repeat_slot = 0; | |
5281 | } | |
1aea3bb8 | 5282 | |
d0313fb7 | 5283 | /* Make sure we check the target of a repeat instruction. */ |
39bec121 | 5284 | if (insn.tm->flags & B_REPEAT) |
9a736b6b NC |
5285 | { |
5286 | repeat_slot = 1; | |
5287 | /* FIXME -- warn if repeat_slot == 1 at EOF. */ | |
5288 | } | |
d0313fb7 | 5289 | /* Make sure we check our delay slots for validity. */ |
39bec121 | 5290 | if (insn.tm->flags & FL_DELAY) |
9a736b6b NC |
5291 | { |
5292 | delay_slots = 2; | |
5293 | /* FIXME -- warn if delay_slots != 0 at EOF. */ | |
5294 | } | |
39bec121 TW |
5295 | } |
5296 | } | |
5297 | ||
5298 | /* Do a final adjustment on the symbol table; in this case, make sure we have | |
d0313fb7 | 5299 | a ".file" symbol. */ |
9a736b6b | 5300 | |
39bec121 TW |
5301 | void |
5302 | tic54x_adjust_symtab () | |
5303 | { | |
5304 | if (symbol_rootP == NULL | |
5305 | || S_GET_STORAGE_CLASS (symbol_rootP) != C_FILE) | |
5306 | { | |
5307 | char *filename; | |
5308 | unsigned lineno; | |
5309 | as_where (&filename, &lineno); | |
5519f6ea | 5310 | c_dot_file_symbol (filename, 0); |
39bec121 TW |
5311 | } |
5312 | } | |
5313 | ||
5314 | /* In order to get gas to ignore any | chars at the start of a line, | |
1aea3bb8 | 5315 | this function returns true if a | is found in a line. |
9a736b6b NC |
5316 | This lets us process parallel instructions, which span two lines. */ |
5317 | ||
39bec121 TW |
5318 | int |
5319 | tic54x_unrecognized_line (int c) | |
5320 | { | |
5321 | return c == PARALLEL_SEPARATOR; | |
5322 | } | |
5323 | ||
5324 | /* Watch for local labels of the form $[0-9] and [_a-zA-Z][_a-zA-Z0-9]*? | |
5325 | Encode their names so that only we see them and can map them to the | |
5326 | appropriate places. | |
5327 | FIXME -- obviously this isn't done yet. These locals still show up in the | |
d0313fb7 | 5328 | symbol table. */ |
39bec121 | 5329 | void |
d0313fb7 NC |
5330 | tic54x_define_label (sym) |
5331 | symbolS *sym; | |
39bec121 | 5332 | { |
d0313fb7 | 5333 | /* Just in case we need this later; note that this is not necessarily the |
1aea3bb8 | 5334 | same thing as line_label... |
39bec121 TW |
5335 | When aligning or assigning labels to fields, sometimes the label is |
5336 | assigned other than the address at which the label appears. | |
5337 | FIXME -- is this really needed? I think all the proper label assignment | |
d0313fb7 | 5338 | is done in tic54x_cons. */ |
39bec121 TW |
5339 | last_label_seen = sym; |
5340 | } | |
5341 | ||
d0313fb7 | 5342 | /* Try to parse something that normal parsing failed at. */ |
9a736b6b | 5343 | |
39bec121 TW |
5344 | symbolS * |
5345 | tic54x_undefined_symbol (name) | |
5346 | char *name; | |
5347 | { | |
5348 | symbol *sym; | |
5349 | ||
d0313fb7 | 5350 | /* Not sure how to handle predefined symbols. */ |
1aea3bb8 NC |
5351 | if ((sym = (symbol *) hash_find (cc_hash, name)) != NULL || |
5352 | (sym = (symbol *) hash_find (cc2_hash, name)) != NULL || | |
5353 | (sym = (symbol *) hash_find (cc3_hash, name)) != NULL || | |
5354 | (sym = (symbol *) hash_find (misc_symbol_hash, name)) != NULL || | |
5355 | (sym = (symbol *) hash_find (sbit_hash, name)) != NULL) | |
39bec121 | 5356 | { |
1aea3bb8 | 5357 | return symbol_new (name, reg_section, |
9a736b6b NC |
5358 | (valueT) sym->value, |
5359 | &zero_address_frag); | |
39bec121 TW |
5360 | } |
5361 | ||
1aea3bb8 NC |
5362 | if ((sym = (symbol *) hash_find (reg_hash, name)) != NULL || |
5363 | (sym = (symbol *) hash_find (mmreg_hash, name)) != NULL || | |
39bec121 TW |
5364 | !strcasecmp (name, "a") || !strcasecmp (name, "b")) |
5365 | { | |
1aea3bb8 | 5366 | return symbol_new (name, reg_section, |
9a736b6b NC |
5367 | (valueT) sym ? sym->value : 0, |
5368 | &zero_address_frag); | |
39bec121 TW |
5369 | } |
5370 | ||
5371 | return NULL; | |
5372 | } | |
5373 | ||
d0313fb7 NC |
5374 | /* Parse a name in an expression before the expression parser takes a stab at |
5375 | it. */ | |
9a736b6b | 5376 | |
39bec121 TW |
5377 | int |
5378 | tic54x_parse_name (name, exp) | |
5379 | char *name ATTRIBUTE_UNUSED; | |
5380 | expressionS *exp ATTRIBUTE_UNUSED; | |
5381 | { | |
39bec121 TW |
5382 | return 0; |
5383 | } | |
5384 | ||
5385 | char * | |
5386 | md_atof (type, literalP, sizeP) | |
5387 | int type; | |
5388 | char *literalP; | |
5389 | int *sizeP; | |
5390 | { | |
5391 | #define MAX_LITTLENUMS 2 | |
5392 | LITTLENUM_TYPE words[MAX_LITTLENUMS]; | |
5393 | LITTLENUM_TYPE *word; | |
9a736b6b | 5394 | /* Only one precision on the c54x. */ |
39bec121 TW |
5395 | int prec = 2; |
5396 | char *t = atof_ieee (input_line_pointer, type, words); | |
5397 | if (t) | |
5398 | input_line_pointer = t; | |
5399 | *sizeP = 4; | |
5400 | ||
1aea3bb8 NC |
5401 | /* Target data is little-endian, but floats are stored |
5402 | big-"word"ian. ugh. */ | |
39bec121 TW |
5403 | for (word = words; prec--;) |
5404 | { | |
1aea3bb8 | 5405 | md_number_to_chars (literalP, (long) (*word++), sizeof (LITTLENUM_TYPE)); |
39bec121 TW |
5406 | literalP += sizeof (LITTLENUM_TYPE); |
5407 | } | |
5408 | ||
5409 | return 0; | |
5410 | } | |
5411 | ||
5412 | arelent * | |
5413 | tc_gen_reloc (section, fixP) | |
5414 | asection *section; | |
5415 | fixS *fixP; | |
5416 | { | |
5417 | arelent *rel; | |
5418 | bfd_reloc_code_real_type code = fixP->fx_r_type; | |
5419 | asymbol *sym = symbol_get_bfdsym (fixP->fx_addsy); | |
5420 | ||
5421 | rel = (arelent *) xmalloc (sizeof (arelent)); | |
1aea3bb8 | 5422 | rel->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); |
39bec121 | 5423 | *rel->sym_ptr_ptr = sym; |
9a736b6b | 5424 | /* We assume that all rel->address are host byte offsets. */ |
39bec121 TW |
5425 | rel->address = fixP->fx_frag->fr_address + fixP->fx_where; |
5426 | rel->address /= OCTETS_PER_BYTE; | |
5427 | rel->howto = bfd_reloc_type_lookup (stdoutput, code); | |
5428 | if (!strcmp (sym->name, section->name)) | |
5429 | rel->howto += HOWTO_BANK; | |
5430 | ||
5431 | if (!rel->howto) | |
5432 | { | |
5433 | const char *name = S_GET_NAME (fixP->fx_addsy); | |
5434 | if (name == NULL) | |
5435 | name = "<unknown>"; | |
1aea3bb8 | 5436 | as_fatal ("Cannot generate relocation type for symbol %s, code %s", |
9a736b6b | 5437 | name, bfd_get_reloc_code_name (code)); |
39bec121 TW |
5438 | return NULL; |
5439 | } | |
5440 | return rel; | |
5441 | } | |
5442 | ||
d0313fb7 | 5443 | /* Handle cons expressions. */ |
9a736b6b | 5444 | |
39bec121 | 5445 | void |
f1e7a2c9 NC |
5446 | tic54x_cons_fix_new (frag, where, octets, exp) |
5447 | fragS *frag; | |
5448 | int where; | |
5449 | int octets; | |
5450 | expressionS *exp; | |
39bec121 TW |
5451 | { |
5452 | bfd_reloc_code_real_type r; | |
f1e7a2c9 | 5453 | |
39bec121 TW |
5454 | switch (octets) |
5455 | { | |
5456 | default: | |
5457 | as_bad (_("Unsupported relocation size %d"), octets); | |
5458 | r = BFD_RELOC_TIC54X_16_OF_23; | |
5459 | break; | |
5460 | case 2: | |
5461 | r = BFD_RELOC_TIC54X_16_OF_23; | |
5462 | break; | |
5463 | case 4: | |
d0313fb7 | 5464 | /* TI assembler always uses this, regardless of addressing mode. */ |
39bec121 | 5465 | if (emitting_long) |
9a736b6b | 5466 | r = BFD_RELOC_TIC54X_23; |
39bec121 | 5467 | else |
9a736b6b NC |
5468 | /* We never want to directly generate this; this is provided for |
5469 | stabs support only. */ | |
5470 | r = BFD_RELOC_32; | |
39bec121 TW |
5471 | break; |
5472 | } | |
5473 | fix_new_exp (frag, where, octets, exp, 0, r); | |
5474 | } | |
5475 | ||
1aea3bb8 | 5476 | /* Attempt to simplify or even eliminate a fixup. |
39bec121 TW |
5477 | To indicate that a fixup has been eliminated, set fixP->fx_done. |
5478 | ||
d0313fb7 | 5479 | If fixp->fx_addsy is non-NULL, we'll have to generate a reloc entry. */ |
9a736b6b | 5480 | |
94f592af | 5481 | void |
55cf6793 | 5482 | md_apply_fix (fixP, valP, seg) |
39bec121 | 5483 | fixS *fixP; |
94f592af NC |
5484 | valueT * valP; |
5485 | segT seg ATTRIBUTE_UNUSED; | |
39bec121 TW |
5486 | { |
5487 | char *buf = fixP->fx_where + fixP->fx_frag->fr_literal; | |
94f592af | 5488 | valueT val = * valP; |
39bec121 TW |
5489 | |
5490 | switch (fixP->fx_r_type) | |
5491 | { | |
5492 | default: | |
5493 | as_fatal ("Bad relocation type: 0x%02x", fixP->fx_r_type); | |
94f592af | 5494 | return; |
39bec121 TW |
5495 | case BFD_RELOC_TIC54X_MS7_OF_23: |
5496 | val = (val >> 16) & 0x7F; | |
d0313fb7 | 5497 | /* Fall through. */ |
39bec121 TW |
5498 | case BFD_RELOC_TIC54X_16_OF_23: |
5499 | case BFD_RELOC_16: | |
5500 | bfd_put_16 (stdoutput, val, buf); | |
d0313fb7 | 5501 | /* Indicate what we're actually writing, so that we don't get warnings |
9a736b6b | 5502 | about exceeding available space. */ |
39bec121 TW |
5503 | *valP = val & 0xFFFF; |
5504 | break; | |
5505 | case BFD_RELOC_TIC54X_PARTLS7: | |
5506 | bfd_put_16 (stdoutput, | |
9a736b6b NC |
5507 | (bfd_get_16 (stdoutput, buf) & 0xFF80) | (val & 0x7F), |
5508 | buf); | |
d0313fb7 | 5509 | /* Indicate what we're actually writing, so that we don't get warnings |
9a736b6b | 5510 | about exceeding available space. */ |
39bec121 TW |
5511 | *valP = val & 0x7F; |
5512 | break; | |
5513 | case BFD_RELOC_TIC54X_PARTMS9: | |
5514 | /* TI assembler doesn't shift its encoding for relocatable files, and is | |
9a736b6b | 5515 | thus incompatible with this implementation's relocatable files. */ |
1aea3bb8 | 5516 | bfd_put_16 (stdoutput, |
9a736b6b NC |
5517 | (bfd_get_16 (stdoutput, buf) & 0xFE00) | (val >> 7), |
5518 | buf); | |
39bec121 TW |
5519 | break; |
5520 | case BFD_RELOC_32: | |
5521 | case BFD_RELOC_TIC54X_23: | |
5522 | bfd_put_32 (stdoutput, | |
9a736b6b NC |
5523 | (bfd_get_32 (stdoutput, buf) & 0xFF800000) | val, |
5524 | buf); | |
39bec121 TW |
5525 | break; |
5526 | } | |
5527 | ||
94f592af NC |
5528 | if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0) |
5529 | fixP->fx_done = 1; | |
39bec121 TW |
5530 | } |
5531 | ||
1aea3bb8 | 5532 | /* This is our chance to record section alignment |
d0313fb7 | 5533 | don't need to do anything here, since BFD does the proper encoding. */ |
9a736b6b | 5534 | |
39bec121 TW |
5535 | valueT |
5536 | md_section_align (segment, section_size) | |
5537 | segT segment ATTRIBUTE_UNUSED; | |
5538 | valueT section_size; | |
5539 | { | |
5540 | return section_size; | |
5541 | } | |
5542 | ||
5543 | long | |
5544 | md_pcrel_from (fixP) | |
5545 | fixS *fixP ATTRIBUTE_UNUSED; | |
5546 | { | |
5547 | return 0; | |
5548 | } | |
5549 | ||
9a736b6b NC |
5550 | /* Mostly little-endian, but longwords (4 octets) get MS word stored |
5551 | first. */ | |
39bec121 | 5552 | |
39bec121 TW |
5553 | void |
5554 | tic54x_number_to_chars (buf, val, n) | |
9a736b6b NC |
5555 | char *buf; |
5556 | valueT val; | |
5557 | int n; | |
39bec121 TW |
5558 | { |
5559 | if (n != 4) | |
9a736b6b | 5560 | number_to_chars_littleendian (buf, val, n); |
39bec121 TW |
5561 | else |
5562 | { | |
1aea3bb8 NC |
5563 | number_to_chars_littleendian (buf , val >> 16 , 2); |
5564 | number_to_chars_littleendian (buf + 2, val & 0xFFFF, 2); | |
39bec121 TW |
5565 | } |
5566 | } | |
5567 | ||
1aea3bb8 | 5568 | int |
39bec121 | 5569 | tic54x_estimate_size_before_relax (frag, seg) |
9a736b6b NC |
5570 | fragS *frag ATTRIBUTE_UNUSED; |
5571 | segT seg ATTRIBUTE_UNUSED; | |
39bec121 TW |
5572 | { |
5573 | return 0; | |
5574 | } | |
5575 | ||
d0313fb7 NC |
5576 | /* We use this to handle bit allocations which we couldn't handle before due |
5577 | to symbols being in different frags. return number of octets added. */ | |
9a736b6b | 5578 | |
1aea3bb8 | 5579 | int |
39bec121 | 5580 | tic54x_relax_frag (frag, stretch) |
1aea3bb8 NC |
5581 | fragS *frag; |
5582 | long stretch ATTRIBUTE_UNUSED; | |
39bec121 TW |
5583 | { |
5584 | symbolS *sym = frag->fr_symbol; | |
5585 | int growth = 0; | |
5586 | int i; | |
5587 | ||
5588 | if (sym != NULL) | |
5589 | { | |
1aea3bb8 | 5590 | struct bit_info *bi = (struct bit_info *) frag->fr_opcode; |
39bec121 TW |
5591 | int bit_offset = frag_bit_offset (frag_prev (frag, bi->seg), bi->seg); |
5592 | int size = S_GET_VALUE (sym); | |
5593 | fragS *prev_frag = bit_offset_frag (frag_prev (frag, bi->seg), bi->seg); | |
5594 | int available = 16 - bit_offset; | |
5595 | ||
5596 | if (symbol_get_frag (sym) != &zero_address_frag | |
9a736b6b NC |
5597 | || S_IS_COMMON (sym) |
5598 | || !S_IS_DEFINED (sym)) | |
5599 | as_bad_where (frag->fr_file, frag->fr_line, | |
5600 | _("non-absolute value used with .space/.bes")); | |
39bec121 TW |
5601 | |
5602 | if (size < 0) | |
9a736b6b NC |
5603 | { |
5604 | as_warn (_("negative value ignored in %s"), | |
5605 | bi->type == TYPE_SPACE ? ".space" : | |
5606 | bi->type == TYPE_BES ? ".bes" : ".field"); | |
5607 | growth = 0; | |
5608 | frag->tc_frag_data = frag->fr_fix = 0; | |
5609 | return 0; | |
5610 | } | |
39bec121 TW |
5611 | |
5612 | if (bi->type == TYPE_FIELD) | |
9a736b6b NC |
5613 | { |
5614 | /* Bit fields of 16 or larger will have already been handled. */ | |
5615 | if (bit_offset != 0 && available >= size) | |
5616 | { | |
5617 | char *p = prev_frag->fr_literal; | |
f1e7a2c9 | 5618 | |
9a736b6b NC |
5619 | valueT value = bi->value; |
5620 | value <<= available - size; | |
5621 | value |= ((unsigned short) p[1] << 8) | p[0]; | |
5622 | md_number_to_chars (p, value, 2); | |
5623 | if ((prev_frag->tc_frag_data += size) == 16) | |
5624 | prev_frag->tc_frag_data = 0; | |
5625 | if (bi->sym) | |
5626 | symbol_set_frag (bi->sym, prev_frag); | |
5627 | /* This frag is no longer used. */ | |
5628 | growth = -frag->fr_fix; | |
5629 | frag->fr_fix = 0; | |
5630 | frag->tc_frag_data = 0; | |
5631 | } | |
5632 | else | |
5633 | { | |
5634 | char *p = frag->fr_literal; | |
f1e7a2c9 | 5635 | |
9a736b6b NC |
5636 | valueT value = bi->value << (16 - size); |
5637 | md_number_to_chars (p, value, 2); | |
5638 | if ((frag->tc_frag_data = size) == 16) | |
5639 | frag->tc_frag_data = 0; | |
5640 | growth = 0; | |
5641 | } | |
5642 | } | |
39bec121 | 5643 | else |
9a736b6b NC |
5644 | { |
5645 | if (bit_offset != 0 && bit_offset < 16) | |
5646 | { | |
5647 | if (available >= size) | |
5648 | { | |
5649 | if ((prev_frag->tc_frag_data += size) == 16) | |
5650 | prev_frag->tc_frag_data = 0; | |
5651 | if (bi->sym) | |
5652 | symbol_set_frag (bi->sym, prev_frag); | |
5653 | /* This frag is no longer used. */ | |
5654 | growth = -frag->fr_fix; | |
5655 | frag->fr_fix = 0; | |
5656 | frag->tc_frag_data = 0; | |
5657 | goto getout; | |
5658 | } | |
5659 | if (bi->type == TYPE_SPACE && bi->sym) | |
5660 | symbol_set_frag (bi->sym, prev_frag); | |
5661 | size -= available; | |
5662 | } | |
5663 | growth = (size + 15) / 16 * OCTETS_PER_BYTE - frag->fr_fix; | |
5664 | for (i = 0; i < growth; i++) | |
5665 | frag->fr_literal[i] = 0; | |
5666 | frag->fr_fix = growth; | |
5667 | frag->tc_frag_data = size % 16; | |
5668 | /* Make sure any BES label points to the LAST word allocated. */ | |
5669 | if (bi->type == TYPE_BES && bi->sym) | |
5670 | S_SET_VALUE (bi->sym, frag->fr_fix / OCTETS_PER_BYTE - 1); | |
5671 | } | |
39bec121 TW |
5672 | getout: |
5673 | frag->fr_symbol = 0; | |
5674 | frag->fr_opcode = 0; | |
1aea3bb8 | 5675 | free ((void *) bi); |
39bec121 TW |
5676 | } |
5677 | return growth; | |
5678 | } | |
5679 | ||
5680 | void | |
5681 | tic54x_convert_frag (abfd, seg, frag) | |
1aea3bb8 NC |
5682 | bfd *abfd ATTRIBUTE_UNUSED; |
5683 | segT seg ATTRIBUTE_UNUSED; | |
5684 | fragS *frag; | |
39bec121 | 5685 | { |
d0313fb7 | 5686 | /* Offset is in bytes. */ |
1aea3bb8 | 5687 | frag->fr_offset = (frag->fr_next->fr_address |
9a736b6b NC |
5688 | - frag->fr_address |
5689 | - frag->fr_fix) / frag->fr_var; | |
39bec121 TW |
5690 | if (frag->fr_offset < 0) |
5691 | { | |
5692 | as_bad_where (frag->fr_file, frag->fr_line, | |
9a736b6b NC |
5693 | _("attempt to .space/.bes backwards? (%ld)"), |
5694 | (long) frag->fr_offset); | |
39bec121 TW |
5695 | } |
5696 | frag->fr_type = rs_space; | |
5697 | } | |
5698 | ||
d0313fb7 | 5699 | /* We need to avoid having labels defined for certain directives/pseudo-ops |
39bec121 TW |
5700 | since once the label is defined, it's in the symbol table for good. TI |
5701 | syntax puts the symbol *before* the pseudo (which is kinda like MRI syntax, | |
5702 | I guess, except I've never seen a definition of MRI syntax). | |
5703 | ||
5704 | C is the character that used to be at *REST, which points to the end of the | |
1aea3bb8 | 5705 | label. |
39bec121 | 5706 | |
d0313fb7 | 5707 | Don't allow labels to start with '.' */ |
9a736b6b | 5708 | |
39bec121 TW |
5709 | int |
5710 | tic54x_start_label (c, rest) | |
1aea3bb8 NC |
5711 | int c; |
5712 | char *rest; | |
39bec121 | 5713 | { |
d0313fb7 | 5714 | /* If within .struct/.union, no auto line labels, please. */ |
39bec121 TW |
5715 | if (current_stag != NULL) |
5716 | return 0; | |
5717 | ||
d0313fb7 | 5718 | /* Disallow labels starting with "." */ |
39bec121 TW |
5719 | if (c != ':') |
5720 | { | |
5721 | char *label = rest; | |
f1e7a2c9 | 5722 | |
1aea3bb8 | 5723 | while (!is_end_of_line[(int) label[-1]]) |
9a736b6b | 5724 | --label; |
39bec121 | 5725 | if (*label == '.') |
9a736b6b NC |
5726 | { |
5727 | as_bad (_("Invalid label '%s'"), label); | |
5728 | return 0; | |
5729 | } | |
39bec121 TW |
5730 | } |
5731 | ||
1aea3bb8 | 5732 | if (is_end_of_line[(int) c]) |
39bec121 TW |
5733 | return 1; |
5734 | ||
3882b010 L |
5735 | if (ISSPACE (c)) |
5736 | while (ISSPACE (c = *++rest)) | |
39bec121 TW |
5737 | ; |
5738 | if (c == '.') | |
5739 | { | |
d0313fb7 | 5740 | /* Don't let colon () define a label for any of these... */ |
3882b010 L |
5741 | return (strncasecmp (rest, ".tag", 4) != 0 || !ISSPACE (rest[4])) |
5742 | && (strncasecmp (rest, ".struct", 7) != 0 || !ISSPACE (rest[7])) | |
5743 | && (strncasecmp (rest, ".union", 6) != 0 || !ISSPACE (rest[6])) | |
5744 | && (strncasecmp (rest, ".macro", 6) != 0 || !ISSPACE (rest[6])) | |
5745 | && (strncasecmp (rest, ".set", 4) != 0 || !ISSPACE (rest[4])) | |
5746 | && (strncasecmp (rest, ".equ", 4) != 0 || !ISSPACE (rest[4])); | |
39bec121 TW |
5747 | } |
5748 | ||
5749 | return 1; | |
5750 | } |