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[/] [or1k/] [tags/] [VER_5_3/] [gdb-5.3/] [sim/] [igen/] [igen.c] - Blame information for rev 1765

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1 1181 sfurman 
/* The IGEN simulator generator for GDB, the GNU Debugger.
2 
 
3 
   Copyright 2002 Free Software Foundation, Inc.
4 
 
5 
   Contributed by Andrew Cagney.
6 
 
7 
   This file is part of GDB.
8 
 
9 
   This program is free software; you can redistribute it and/or modify
10 
   it under the terms of the GNU General Public License as published by
11 
   the Free Software Foundation; either version 2 of the License, or
12 
   (at your option) any later version.
13 
 
14 
   This program is distributed in the hope that it will be useful,
15 
   but WITHOUT ANY WARRANTY; without even the implied warranty of
16 
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17 
   GNU General Public License for more details.
18 
 
19 
   You should have received a copy of the GNU General Public License
20 
   along with this program; if not, write to the Free Software
21 
   Foundation, Inc., 59 Temple Place - Suite 330,
22 
   Boston, MA 02111-1307, USA.  */
23 
 
24 
 
25 
 
26 
#include <getopt.h>
27 
 
28 
#include "misc.h"
29 
#include "lf.h"
30 
#include "table.h"
31 
#include "config.h"
32 
#include "filter.h"
33 
 
34 
#include "igen.h"
35 
 
36 
#include "ld-insn.h"
37 
#include "ld-decode.h"
38 
#include "ld-cache.h"
39 
 
40 
#include "gen.h"
41 
 
42 
#include "gen-model.h"
43 
#include "gen-icache.h"
44 
#include "gen-itable.h"
45 
#include "gen-idecode.h"
46 
#include "gen-semantics.h"
47 
#include "gen-engine.h"
48 
#include "gen-support.h"
49 
#include "gen-engine.h"
50 
 
51 
 
52 
/****************************************************************/
53 
 
54 
 
55 
/* Semantic functions */
56 
 
57 
int
58 
print_semantic_function_formal (lf *file, int nr_prefetched_words)
59 
{
60 
  int nr = 0;
61 
  int word_nr;
62 
  if (options.gen.icache || nr_prefetched_words < 0)
63 
    {
64 
      nr += lf_printf (file, "SIM_DESC sd,\n");
65 
      nr += lf_printf (file, "%sidecode_cache *cache_entry,\n",
66 
                       options.module.global.prefix.l);
67 
      nr += lf_printf (file, "%sinstruction_address cia",
68 
                       options.module.global.prefix.l);
69 
    }
70 
  else if (options.gen.smp)
71 
    {
72 
      nr += lf_printf (file, "sim_cpu *cpu,\n");
73 
      for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
74 
        {
75 
          nr += lf_printf (file, "%sinstruction_word instruction_%d,\n",
76 
                           options.module.global.prefix.l, word_nr);
77 
        }
78 
      nr += lf_printf (file, "%sinstruction_address cia",
79 
                       options.module.global.prefix.l);
80 
    }
81 
  else
82 
    {
83 
      nr += lf_printf (file, "SIM_DESC sd,\n");
84 
      for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
85 
        {
86 
          nr += lf_printf (file, "%sinstruction_word instruction_%d,\n",
87 
                           options.module.global.prefix.l, word_nr);
88 
        }
89 
      nr += lf_printf (file, "%sinstruction_address cia",
90 
                       options.module.global.prefix.l);
91 
    }
92 
  return nr;
93 
}
94 
 
95 
int
96 
print_semantic_function_actual (lf *file, int nr_prefetched_words)
97 
{
98 
  int nr = 0;
99 
  int word_nr;
100 
  if (options.gen.icache || nr_prefetched_words < 0)
101 
    {
102 
      nr += lf_printf (file, "sd, cache_entry, cia");
103 
    }
104 
  else
105 
    {
106 
      if (options.gen.smp)
107 
        nr += lf_printf (file, "cpu");
108 
      else
109 
        nr += lf_printf (file, "sd");
110 
      for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
111 
        nr += lf_printf (file, ", instruction_%d", word_nr);
112 
      nr += lf_printf (file, ", cia");
113 
    }
114 
  return nr;
115 
}
116 
 
117 
int
118 
print_semantic_function_type (lf *file)
119 
{
120 
  int nr = 0;
121 
  nr += lf_printf (file, "%sinstruction_address",
122 
                   options.module.global.prefix.l);
123 
  return nr;
124 
}
125 
 
126 
 
127 
/* Idecode functions */
128 
 
129 
int
130 
print_icache_function_formal (lf *file, int nr_prefetched_words)
131 
{
132 
  int nr = 0;
133 
  int word_nr;
134 
  if (options.gen.smp)
135 
    nr += lf_printf (file, "sim_cpu *cpu,\n");
136 
  else
137 
    nr += lf_printf (file, "SIM_DESC sd,\n");
138 
  for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
139 
    nr += lf_printf (file, " %sinstruction_word instruction_%d,\n",
140 
                     options.module.global.prefix.l, word_nr);
141 
  nr += lf_printf (file, " %sinstruction_address cia,\n",
142 
                   options.module.global.prefix.l);
143 
  nr += lf_printf (file, " %sidecode_cache *cache_entry",
144 
                   options.module.global.prefix.l);
145 
  return nr;
146 
}
147 
 
148 
int
149 
print_icache_function_actual (lf *file, int nr_prefetched_words)
150 
{
151 
  int nr = 0;
152 
  int word_nr;
153 
  if (options.gen.smp)
154 
    nr += lf_printf (file, "cpu");
155 
  else
156 
    nr += lf_printf (file, "sd");
157 
  for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
158 
    nr += lf_printf (file, ", instruction_%d", word_nr);
159 
  nr += lf_printf (file, ", cia, cache_entry");
160 
  return nr;
161 
}
162 
 
163 
int
164 
print_icache_function_type (lf *file)
165 
{
166 
  int nr;
167 
  if (options.gen.semantic_icache)
168 
    {
169 
      nr = print_semantic_function_type (file);
170 
    }
171 
  else
172 
    {
173 
      nr = lf_printf (file, "%sidecode_semantic *",
174 
                      options.module.global.prefix.l);
175 
    }
176 
  return nr;
177 
}
178 
 
179 
 
180 
/* Function names */
181 
 
182 
static int
183 
print_opcode_bits (lf *file, opcode_bits *bits)
184 
{
185 
  int nr = 0;
186 
  if (bits == NULL)
187 
    return nr;
188 
  nr += lf_putchr (file, '_');
189 
  nr += lf_putstr (file, bits->field->val_string);
190 
  if (bits->opcode->is_boolean && bits->value == 0)
191 
    nr += lf_putint (file, bits->opcode->boolean_constant);
192 
  else if (!bits->opcode->is_boolean)
193 
    {
194 
      if (bits->opcode->last < bits->field->last)
195 
        nr +=
196 
          lf_putint (file,
197 
                     bits->value << (bits->field->last - bits->opcode->last));
198 
      else
199 
        nr += lf_putint (file, bits->value);
200 
    }
201 
  nr += print_opcode_bits (file, bits->next);
202 
  return nr;
203 
}
204 
 
205 
static int
206 
print_c_name (lf *file, const char *name)
207 
{
208 
  int nr = 0;
209 
  const char *pos;
210 
  for (pos = name; *pos != '\0'; pos++)
211 
    {
212 
      switch (*pos)
213 
        {
214 
        case '/':
215 
        case '-':
216 
          break;
217 
        case ' ':
218 
        case '.':
219 
          nr += lf_putchr (file, '_');
220 
          break;
221 
        default:
222 
          nr += lf_putchr (file, *pos);
223 
          break;
224 
        }
225 
    }
226 
  return nr;
227 
}
228 
 
229 
extern int
230 
print_function_name (lf *file,
231 
                     const char *basename,
232 
                     const char *format_name,
233 
                     const char *model_name,
234 
                     opcode_bits *expanded_bits,
235 
                     lf_function_name_prefixes prefix)
236 
{
237 
  int nr = 0;
238 
  /* the prefix */
239 
  switch (prefix)
240 
    {
241 
    case function_name_prefix_semantics:
242 
      nr += lf_printf (file, "%s", options.module.semantics.prefix.l);
243 
      nr += lf_printf (file, "semantic_");
244 
      break;
245 
    case function_name_prefix_idecode:
246 
      nr += lf_printf (file, "%s", options.module.idecode.prefix.l);
247 
      nr += lf_printf (file, "idecode_");
248 
      break;
249 
    case function_name_prefix_itable:
250 
      nr += lf_printf (file, "%sitable_", options.module.itable.prefix.l);
251 
      break;
252 
    case function_name_prefix_icache:
253 
      nr += lf_printf (file, "%s", options.module.icache.prefix.l);
254 
      nr += lf_printf (file, "icache_");
255 
      break;
256 
    case function_name_prefix_engine:
257 
      nr += lf_printf (file, "%s", options.module.engine.prefix.l);
258 
      nr += lf_printf (file, "engine_");
259 
    default:
260 
      break;
261 
    }
262 
 
263 
  if (model_name != NULL)
264 
    {
265 
      nr += print_c_name (file, model_name);
266 
      nr += lf_printf (file, "_");
267 
    }
268 
 
269 
  /* the function name */
270 
  nr += print_c_name (file, basename);
271 
 
272 
  /* the format name if available */
273 
  if (format_name != NULL)
274 
    {
275 
      nr += lf_printf (file, "_");
276 
      nr += print_c_name (file, format_name);
277 
    }
278 
 
279 
  /* the suffix */
280 
  nr += print_opcode_bits (file, expanded_bits);
281 
 
282 
  return nr;
283 
}
284 
 
285 
 
286 
void
287 
print_my_defines (lf *file,
288 
                  const char *basename,
289 
                  const char *format_name, opcode_bits *expanded_bits)
290 
{
291 
  /* #define MY_INDEX xxxxx */
292 
  lf_indent_suppress (file);
293 
  lf_printf (file, "#undef MY_INDEX\n");
294 
  lf_indent_suppress (file);
295 
  lf_printf (file, "#define MY_INDEX ");
296 
  print_function_name (file,
297 
                       basename, format_name, NULL,
298 
                       NULL, function_name_prefix_itable);
299 
  lf_printf (file, "\n");
300 
  /* #define MY_PREFIX xxxxxx */
301 
  lf_indent_suppress (file);
302 
  lf_printf (file, "#undef ");
303 
  print_function_name (file,
304 
                       basename, format_name, NULL,
305 
                       expanded_bits, function_name_prefix_none);
306 
  lf_printf (file, "\n");
307 
  lf_indent_suppress (file);
308 
  lf_printf (file, "#undef MY_PREFIX\n");
309 
  lf_indent_suppress (file);
310 
  lf_printf (file, "#define MY_PREFIX ");
311 
  print_function_name (file,
312 
                       basename, format_name, NULL,
313 
                       expanded_bits, function_name_prefix_none);
314 
  lf_printf (file, "\n");
315 
  /* #define MY_NAME xxxxxx */
316 
  lf_indent_suppress (file);
317 
  lf_indent_suppress (file);
318 
  lf_printf (file, "#undef MY_NAME\n");
319 
  lf_indent_suppress (file);
320 
  lf_printf (file, "#define MY_NAME \"");
321 
  print_function_name (file,
322 
                       basename, format_name, NULL,
323 
                       expanded_bits, function_name_prefix_none);
324 
  lf_printf (file, "\"\n");
325 
}
326 
 
327 
 
328 
static int
329 
print_itrace_prefix (lf *file)
330 
{
331 
  const char *prefix = "trace_prefix (";
332 
  int indent = strlen (prefix);
333 
  lf_printf (file, "%sSD, CPU, cia, CIA, TRACE_LINENUM_P (CPU), \\\n",
334 
             prefix);
335 
  lf_indent (file, +indent);
336 
  lf_printf (file, "%sitable[MY_INDEX].file, \\\n",
337 
             options.module.itable.prefix.l);
338 
  lf_printf (file, "%sitable[MY_INDEX].line_nr, \\\n",
339 
             options.module.itable.prefix.l);
340 
  lf_printf (file, "\"");
341 
  return indent;
342 
}
343 
 
344 
 
345 
static void
346 
print_itrace_format (lf *file, insn_mnemonic_entry *assembler)
347 
{
348 
  /* pass=1 is fmt string; pass=2 is arguments */
349 
  int pass;
350 
  /* print the format string */
351 
  for (pass = 1; pass <= 2; pass++)
352 
    {
353 
      const char *chp = assembler->format;
354 
      chp++;                    /* skip the leading quote */
355 
      /* write out the format/args */
356 
      while (*chp != '\0')
357 
        {
358 
          if (chp[0] == '\\' && (chp[1] == '<' || chp[1] == '>'))
359 
            {
360 
              if (pass == 1)
361 
                lf_putchr (file, chp[1]);
362 
              chp += 2;
363 
            }
364 
          else if (chp[0] == '<' || chp[0] == '%')
365 
            {
366 
              /* parse [ "%" ... ] "<" [ func "#" ] param ">" */
367 
              const char *fmt;
368 
              const char *func;
369 
              int strlen_func;
370 
              const char *param;
371 
              int strlen_param;
372 
              /* the "%" ... "<" format */
373 
              fmt = chp;
374 
              while (chp[0] != '<' && chp[0] != '\0')
375 
                chp++;
376 
              if (chp[0] != '<')
377 
                error (assembler->line, "Missing `<' after `%%'\n");
378 
              chp++;
379 
              /* [ "func" # ] OR "param" */
380 
              func = chp;
381 
              param = chp;
382 
              while (chp[0] != '>' && chp[0] != '#' && chp[0] != '\0')
383 
                chp++;
384 
              strlen_func = chp - func;
385 
              if (chp[0] == '#')
386 
                {
387 
                  chp++;
388 
                  param = chp;
389 
                  while (chp[0] != '>' && chp[0] != '\0')
390 
                    chp++;
391 
                }
392 
              strlen_param = chp - param;
393 
              if (chp[0] != '>')
394 
                error (assembler->line,
395 
                       "Missing closing `>' in assembler string\n");
396 
              chp++;
397 
              /* now process it */
398 
              if (pass == 2)
399 
                lf_printf (file, ", \\\n");
400 
              if (strncmp (fmt, "<", 1) == 0)
401 
                /* implicit long int format */
402 
                {
403 
                  if (pass == 1)
404 
                    lf_printf (file, "%%ld");
405 
                  else
406 
                    {
407 
                      lf_printf (file, "(long) ");
408 
                      lf_write (file, param, strlen_param);
409 
                    }
410 
                }
411 
              else if (strncmp (fmt, "%<", 2) == 0)
412 
                /* explicit format */
413 
                {
414 
                  if (pass == 1)
415 
                    lf_printf (file, "%%");
416 
                  else
417 
                    lf_write (file, param, strlen_param);
418 
                }
419 
              else if (strncmp (fmt, "%s<", 3) == 0)
420 
                /* string format */
421 
                {
422 
                  if (pass == 1)
423 
                    lf_printf (file, "%%s");
424 
                  else
425 
                    {
426 
                      lf_printf (file, "%sstr_",
427 
                                 options.module.global.prefix.l);
428 
                      lf_write (file, func, strlen_func);
429 
                      lf_printf (file, " (SD_, ");
430 
                      lf_write (file, param, strlen_param);
431 
                      lf_printf (file, ")");
432 
                    }
433 
                }
434 
              else if (strncmp (fmt, "%lx<", 4) == 0)
435 
                /* simple hex */
436 
                {
437 
                  if (pass == 1)
438 
                    lf_printf (file, "%%lx");
439 
                  else
440 
                    {
441 
                      lf_printf (file, "(unsigned long) ");
442 
                      lf_write (file, param, strlen_param);
443 
                    }
444 
                }
445 
              else if (strncmp (fmt, "%#lx<", 5) == 0)
446 
                /* simple hex with 0x prefix */
447 
                {
448 
                  if (pass == 1)
449 
                    lf_printf (file, "%%#lx");
450 
                  else
451 
                    {
452 
                      lf_printf (file, "(unsigned long) ");
453 
                      lf_write (file, param, strlen_param);
454 
                    }
455 
                }
456 
              else if (strncmp (fmt, "%08lx<", 6) == 0)
457 
                /* simple hex */
458 
                {
459 
                  if (pass == 1)
460 
                    lf_printf (file, "%%08lx");
461 
                  else
462 
                    {
463 
                      lf_printf (file, "(unsigned long) ");
464 
                      lf_write (file, param, strlen_param);
465 
                    }
466 
                }
467 
              else
468 
                error (assembler->line, "Unknown assembler string format\n");
469 
            }
470 
          else
471 
            {
472 
              if (pass == 1)
473 
                lf_putchr (file, chp[0]);
474 
              chp += 1;
475 
            }
476 
        }
477 
    }
478 
  lf_printf (file, ");\n");
479 
}
480 
 
481 
 
482 
void
483 
print_itrace (lf *file, insn_entry * insn, int idecode)
484 
{
485 
  /* NB: Here we escape each EOLN. This is so that the the compiler
486 
     treats a trace function call as a single line.  Consequently any
487 
     errors in the line are refered back to the same igen assembler
488 
     source line */
489 
  const char *phase = (idecode) ? "DECODE" : "INSN";
490 
  lf_printf (file, "\n");
491 
  lf_indent_suppress (file);
492 
  lf_printf (file, "#if defined (WITH_TRACE)\n");
493 
  lf_printf (file, "/* generate a trace prefix if any tracing enabled */\n");
494 
  lf_printf (file, "if (TRACE_ANY_P (CPU))\n");
495 
  lf_printf (file, "  {\n");
496 
  lf_indent (file, +4);
497 
  {
498 
    if (insn->mnemonics != NULL)
499 
      {
500 
        insn_mnemonic_entry *assembler = insn->mnemonics;
501 
        int is_first = 1;
502 
        do
503 
          {
504 
            if (assembler->condition != NULL)
505 
              {
506 
                int indent;
507 
                lf_printf (file, "%sif (%s)\n",
508 
                           is_first ? "" : "else ", assembler->condition);
509 
                lf_indent (file, +2);
510 
                lf_print__line_ref (file, assembler->line);
511 
                indent = print_itrace_prefix (file);
512 
                print_itrace_format (file, assembler);
513 
                lf_print__internal_ref (file);
514 
                lf_indent (file, -indent);
515 
                lf_indent (file, -2);
516 
                if (assembler->next == NULL)
517 
                  error (assembler->line,
518 
                         "Missing final unconditional assembler\n");
519 
              }
520 
            else
521 
              {
522 
                int indent;
523 
                if (!is_first)
524 
                  {
525 
                    lf_printf (file, "else\n");
526 
                    lf_indent (file, +2);
527 
                  }
528 
                lf_print__line_ref (file, assembler->line);
529 
                indent = print_itrace_prefix (file);
530 
                print_itrace_format (file, assembler);
531 
                lf_print__internal_ref (file);
532 
                lf_indent (file, -indent);
533 
                if (!is_first)
534 
                  lf_indent (file, -2);
535 
                if (assembler->next != NULL)
536 
                  error (assembler->line,
537 
                         "Unconditional assembler is not last\n");
538 
              }
539 
            is_first = 0;
540 
            assembler = assembler->next;
541 
          }
542 
        while (assembler != NULL);
543 
      }
544 
    else
545 
      {
546 
        int indent;
547 
        lf_indent (file, +2);
548 
        lf_print__line_ref (file, insn->line);
549 
        indent = print_itrace_prefix (file);
550 
        lf_printf (file, "%%s\", \\\n");
551 
        lf_printf (file, "itable[MY_INDEX].name);\n");
552 
        lf_print__internal_ref (file);
553 
        lf_indent (file, -indent);
554 
        lf_indent (file, -2);
555 
      }
556 
    lf_printf (file, "/* trace the instruction execution if enabled */\n");
557 
    lf_printf (file, "if (TRACE_%s_P (CPU))\n", phase);
558 
    lf_printf (file,
559 
               "  trace_generic (SD, CPU, TRACE_%s_IDX, \" %%s\", itable[MY_INDEX].name);\n",
560 
               phase);
561 
  }
562 
  lf_indent (file, -4);
563 
  lf_printf (file, "  }\n");
564 
  lf_indent_suppress (file);
565 
  lf_printf (file, "#endif\n");
566 
}
567 
 
568 
 
569 
void
570 
print_sim_engine_abort (lf *file, const char *message)
571 
{
572 
  lf_printf (file, "sim_engine_abort (SD, CPU, cia, ");
573 
  lf_printf (file, "\"%s\"", message);
574 
  lf_printf (file, ");\n");
575 
}
576 
 
577 
 
578 
void
579 
print_include (lf *file, igen_module module)
580 
{
581 
  lf_printf (file, "#include \"%s%s.h\"\n", module.prefix.l, module.suffix.l);
582 
}
583 
 
584 
void
585 
print_include_inline (lf *file, igen_module module)
586 
{
587 
  lf_printf (file, "#if C_REVEALS_MODULE_P (%s_INLINE)\n", module.suffix.u);
588 
  lf_printf (file, "#include \"%s%s.c\"\n", module.prefix.l, module.suffix.l);
589 
  lf_printf (file, "#else\n");
590 
  print_include (file, module);
591 
  lf_printf (file, "#endif\n");
592 
  lf_printf (file, "\n");
593 
}
594 
 
595 
void
596 
print_includes (lf *file)
597 
{
598 
  lf_printf (file, "\n");
599 
  lf_printf (file, "#include \"sim-inline.c\"\n");
600 
  lf_printf (file, "\n");
601 
  print_include_inline (file, options.module.itable);
602 
  print_include_inline (file, options.module.idecode);
603 
  print_include_inline (file, options.module.support);
604 
}
605 
 
606 
 
607 
/****************************************************************/
608 
 
609 
 
610 
static void
611 
gen_semantics_h (lf *file, insn_list *semantics, int max_nr_words)
612 
{
613 
  int word_nr;
614 
  insn_list *semantic;
615 
  for (word_nr = -1; word_nr <= max_nr_words; word_nr++)
616 
    {
617 
      lf_printf (file, "typedef ");
618 
      print_semantic_function_type (file);
619 
      lf_printf (file, " %sidecode_semantic", options.module.global.prefix.l);
620 
      if (word_nr >= 0)
621 
        lf_printf (file, "_%d", word_nr);
622 
      lf_printf (file, "\n(");
623 
      lf_indent (file, +1);
624 
      print_semantic_function_formal (file, word_nr);
625 
      lf_indent (file, -1);
626 
      lf_printf (file, ");\n");
627 
      lf_printf (file, "\n");
628 
    }
629 
  switch (options.gen.code)
630 
    {
631 
    case generate_calls:
632 
      for (semantic = semantics; semantic != NULL; semantic = semantic->next)
633 
        {
634 
          /* Ignore any special/internal instructions */
635 
          if (semantic->insn->nr_words == 0)
636 
            continue;
637 
          print_semantic_declaration (file,
638 
                                      semantic->insn,
639 
                                      semantic->expanded_bits,
640 
                                      semantic->opcodes,
641 
                                      semantic->nr_prefetched_words);
642 
        }
643 
      break;
644 
    case generate_jumps:
645 
      lf_print__this_file_is_empty (file, "generating jumps");
646 
      break;
647 
    }
648 
}
649 
 
650 
 
651 
static void
652 
gen_semantics_c (lf *file, insn_list *semantics, cache_entry *cache_rules)
653 
{
654 
  if (options.gen.code == generate_calls)
655 
    {
656 
      insn_list *semantic;
657 
      print_includes (file);
658 
      print_include (file, options.module.semantics);
659 
      lf_printf (file, "\n");
660 
 
661 
      for (semantic = semantics; semantic != NULL; semantic = semantic->next)
662 
        {
663 
          /* Ignore any special/internal instructions */
664 
          if (semantic->insn->nr_words == 0)
665 
            continue;
666 
          print_semantic_definition (file,
667 
                                     semantic->insn,
668 
                                     semantic->expanded_bits,
669 
                                     semantic->opcodes,
670 
                                     cache_rules,
671 
                                     semantic->nr_prefetched_words);
672 
        }
673 
    }
674 
  else
675 
    {
676 
      lf_print__this_file_is_empty (file, "generating jump engine");
677 
    }
678 
}
679 
 
680 
 
681 
/****************************************************************/
682 
 
683 
 
684 
static void
685 
gen_icache_h (lf *file,
686 
              insn_list *semantic,
687 
              function_entry * functions, int max_nr_words)
688 
{
689 
  int word_nr;
690 
  for (word_nr = 0; word_nr <= max_nr_words; word_nr++)
691 
    {
692 
      lf_printf (file, "typedef ");
693 
      print_icache_function_type (file);
694 
      lf_printf (file, " %sidecode_icache_%d\n(",
695 
                 options.module.global.prefix.l, word_nr);
696 
      print_icache_function_formal (file, word_nr);
697 
      lf_printf (file, ");\n");
698 
      lf_printf (file, "\n");
699 
    }
700 
  if (options.gen.code == generate_calls && options.gen.icache)
701 
    {
702 
      function_entry_traverse (file, functions,
703 
                               print_icache_internal_function_declaration,
704 
                               NULL);
705 
      while (semantic != NULL)
706 
        {
707 
          print_icache_declaration (file,
708 
                                    semantic->insn,
709 
                                    semantic->expanded_bits,
710 
                                    semantic->opcodes,
711 
                                    semantic->nr_prefetched_words);
712 
          semantic = semantic->next;
713 
        }
714 
    }
715 
  else
716 
    {
717 
      lf_print__this_file_is_empty (file, "generating jump engine");
718 
    }
719 
}
720 
 
721 
static void
722 
gen_icache_c (lf *file,
723 
              insn_list *semantic,
724 
              function_entry * functions, cache_entry *cache_rules)
725 
{
726 
  /* output `internal' invalid/floating-point unavailable functions
727 
     where needed */
728 
  if (options.gen.code == generate_calls && options.gen.icache)
729 
    {
730 
      lf_printf (file, "\n");
731 
      lf_printf (file, "#include \"cpu.h\"\n");
732 
      lf_printf (file, "#include \"idecode.h\"\n");
733 
      lf_printf (file, "#include \"semantics.h\"\n");
734 
      lf_printf (file, "#include \"icache.h\"\n");
735 
      lf_printf (file, "#include \"support.h\"\n");
736 
      lf_printf (file, "\n");
737 
      function_entry_traverse (file, functions,
738 
                               print_icache_internal_function_definition,
739 
                               NULL);
740 
      lf_printf (file, "\n");
741 
      while (semantic != NULL)
742 
        {
743 
          print_icache_definition (file,
744 
                                   semantic->insn,
745 
                                   semantic->expanded_bits,
746 
                                   semantic->opcodes,
747 
                                   cache_rules,
748 
                                   semantic->nr_prefetched_words);
749 
          semantic = semantic->next;
750 
        }
751 
    }
752 
  else
753 
    {
754 
      lf_print__this_file_is_empty (file, "generating jump engine");
755 
    }
756 
}
757 
 
758 
 
759 
/****************************************************************/
760 
 
761 
 
762 
static void
763 
gen_idecode_h (lf *file,
764 
               gen_table *gen, insn_table *insns, cache_entry *cache_rules)
765 
{
766 
  lf_printf (file, "typedef unsigned%d %sinstruction_word;\n",
767 
             options.insn_bit_size, options.module.global.prefix.l);
768 
  if (options.gen.delayed_branch)
769 
    {
770 
      lf_printf (file, "typedef struct _%sinstruction_address {\n",
771 
                 options.module.global.prefix.l);
772 
      lf_printf (file, "  address_word ip; /* instruction pointer */\n");
773 
      lf_printf (file, "  address_word dp; /* delayed-slot pointer */\n");
774 
      lf_printf (file, "} %sinstruction_address;\n",
775 
                 options.module.global.prefix.l);
776 
    }
777 
  else
778 
    {
779 
      lf_printf (file, "typedef address_word %sinstruction_address;\n",
780 
                 options.module.global.prefix.l);
781 
 
782 
    }
783 
  if (options.gen.nia == nia_is_invalid
784 
      && strlen (options.module.global.prefix.u) > 0)
785 
    {
786 
      lf_indent_suppress (file);
787 
      lf_printf (file, "#define %sINVALID_INSTRUCTION_ADDRESS ",
788 
                 options.module.global.prefix.u);
789 
      lf_printf (file, "INVALID_INSTRUCTION_ADDRESS\n");
790 
    }
791 
  lf_printf (file, "\n");
792 
  print_icache_struct (file, insns, cache_rules);
793 
  lf_printf (file, "\n");
794 
  if (options.gen.icache)
795 
    {
796 
      ERROR ("FIXME - idecode with icache suffering from bit-rot");
797 
    }
798 
  else
799 
    {
800 
      gen_list *entry;
801 
      for (entry = gen->tables; entry != NULL; entry = entry->next)
802 
        {
803 
          print_idecode_issue_function_header (file,
804 
                                               (options.gen.multi_sim
805 
                                                ? entry->model->name
806 
                                                : NULL),
807 
                                               is_function_declaration,
808 
                                               1 /*ALWAYS ONE WORD */ );
809 
        }
810 
      if (options.gen.multi_sim)
811 
        {
812 
          print_idecode_issue_function_header (file,
813 
                                               NULL,
814 
                                               is_function_variable,
815 
                                               1 /*ALWAYS ONE WORD */ );
816 
        }
817 
    }
818 
}
819 
 
820 
 
821 
static void
822 
gen_idecode_c (lf *file,
823 
               gen_table *gen, insn_table *isa, cache_entry *cache_rules)
824 
{
825 
  /* the intro */
826 
  print_includes (file);
827 
  print_include_inline (file, options.module.semantics);
828 
  lf_printf (file, "\n");
829 
 
830 
  print_idecode_globals (file);
831 
  lf_printf (file, "\n");
832 
 
833 
  switch (options.gen.code)
834 
    {
835 
    case generate_calls:
836 
      {
837 
        gen_list *entry;
838 
        for (entry = gen->tables; entry != NULL; entry = entry->next)
839 
          {
840 
            print_idecode_lookups (file, entry->table, cache_rules);
841 
 
842 
            /* output the main idecode routine */
843 
            if (!options.gen.icache)
844 
              {
845 
                print_idecode_issue_function_header (file,
846 
                                                     (options.gen.multi_sim
847 
                                                      ? entry->model->name
848 
                                                      : NULL),
849 
                                                     1 /*is definition */ ,
850 
                                                     1 /*ALWAYS ONE WORD */ );
851 
                lf_printf (file, "{\n");
852 
                lf_indent (file, +2);
853 
                lf_printf (file, "%sinstruction_address nia;\n",
854 
                           options.module.global.prefix.l);
855 
                print_idecode_body (file, entry->table, "nia =");
856 
                lf_printf (file, "return nia;");
857 
                lf_indent (file, -2);
858 
                lf_printf (file, "}\n");
859 
              }
860 
          }
861 
        break;
862 
      }
863 
    case generate_jumps:
864 
      {
865 
        lf_print__this_file_is_empty (file, "generating a jump engine");
866 
        break;
867 
      }
868 
    }
869 
}
870 
 
871 
 
872 
/****************************************************************/
873 
 
874 
 
875 
static void
876 
gen_run_c (lf *file, gen_table *gen)
877 
{
878 
  gen_list *entry;
879 
  lf_printf (file, "#include \"sim-main.h\"\n");
880 
  lf_printf (file, "#include \"engine.h\"\n");
881 
  lf_printf (file, "#include \"idecode.h\"\n");
882 
  lf_printf (file, "#include \"bfd.h\"\n");
883 
  lf_printf (file, "\n");
884 
 
885 
  if (options.gen.multi_sim)
886 
    {
887 
      print_idecode_issue_function_header (file, NULL, is_function_variable,
888 
                                           1);
889 
      lf_printf (file, "\n");
890 
      print_engine_run_function_header (file, NULL, is_function_variable);
891 
      lf_printf (file, "\n");
892 
    }
893 
 
894 
  lf_printf (file, "void\n");
895 
  lf_printf (file, "sim_engine_run (SIM_DESC sd,\n");
896 
  lf_printf (file, "                int next_cpu_nr,\n");
897 
  lf_printf (file, "                int nr_cpus,\n");
898 
  lf_printf (file, "                int siggnal)\n");
899 
  lf_printf (file, "{\n");
900 
  lf_indent (file, +2);
901 
  if (options.gen.multi_sim)
902 
    {
903 
      lf_printf (file, "int mach;\n");
904 
      lf_printf (file, "if (STATE_ARCHITECTURE (sd) == NULL)\n");
905 
      lf_printf (file, "  mach = 0;\n");
906 
      lf_printf (file, "else\n");
907 
      lf_printf (file, "  mach = STATE_ARCHITECTURE (sd)->mach;\n");
908 
      lf_printf (file, "switch (mach)\n");
909 
      lf_printf (file, "  {\n");
910 
      lf_indent (file, +2);
911 
      for (entry = gen->tables; entry != NULL; entry = entry->next)
912 
        {
913 
          if (options.gen.default_model != NULL
914 
              && (strcmp (entry->model->name, options.gen.default_model) == 0
915 
                  || strcmp (entry->model->full_name,
916 
                             options.gen.default_model) == 0))
917 
            lf_printf (file, "default:\n");
918 
          lf_printf (file, "case bfd_mach_%s:\n", entry->model->full_name);
919 
          lf_indent (file, +2);
920 
          print_function_name (file, "issue", NULL,     /* format name */
921 
                               NULL,    /* NO processor */
922 
                               NULL,    /* expanded bits */
923 
                               function_name_prefix_idecode);
924 
          lf_printf (file, " = ");
925 
          print_function_name (file, "issue", NULL,     /* format name */
926 
                               entry->model->name, NULL,        /* expanded bits */
927 
                               function_name_prefix_idecode);
928 
          lf_printf (file, ";\n");
929 
          print_function_name (file, "run", NULL,       /* format name */
930 
                               NULL,    /* NO processor */
931 
                               NULL,    /* expanded bits */
932 
                               function_name_prefix_engine);
933 
          lf_printf (file, " = ");
934 
          print_function_name (file, "run", NULL,       /* format name */
935 
                               entry->model->name, NULL,        /* expanded bits */
936 
                               function_name_prefix_engine);
937 
          lf_printf (file, ";\n");
938 
          lf_printf (file, "break;\n");
939 
          lf_indent (file, -2);
940 
        }
941 
      if (options.gen.default_model == NULL)
942 
        {
943 
          lf_printf (file, "default:\n");
944 
          lf_indent (file, +2);
945 
          lf_printf (file, "sim_engine_abort (sd, NULL, NULL_CIA,\n");
946 
          lf_printf (file,
947 
                     "                  \"sim_engine_run - unknown machine\");\n");
948 
          lf_printf (file, "break;\n");
949 
          lf_indent (file, -2);
950 
        }
951 
      lf_indent (file, -2);
952 
      lf_printf (file, "  }\n");
953 
    }
954 
  print_function_name (file, "run", NULL,       /* format name */
955 
                       NULL,    /* NO processor */
956 
                       NULL,    /* expanded bits */
957 
                       function_name_prefix_engine);
958 
  lf_printf (file, " (sd, next_cpu_nr, nr_cpus, siggnal);\n");
959 
  lf_indent (file, -2);
960 
  lf_printf (file, "}\n");
961 
}
962 
 
963 
/****************************************************************/
964 
 
965 
static gen_table *
966 
do_gen (insn_table *isa, decode_table *decode_rules)
967 
{
968 
  gen_table *gen;
969 
  if (decode_rules == NULL)
970 
    error (NULL, "Must specify a decode table\n");
971 
  if (isa == NULL)
972 
    error (NULL, "Must specify an instruction table\n");
973 
  if (decode_table_max_word_nr (decode_rules) > 0)
974 
    options.gen.multi_word = decode_table_max_word_nr (decode_rules);
975 
  gen = make_gen_tables (isa, decode_rules);
976 
  gen_tables_expand_insns (gen);
977 
  gen_tables_expand_semantics (gen);
978 
  return gen;
979 
}
980 
 
981 
/****************************************************************/
982 
 
983 
igen_options options;
984 
 
985 
int
986 
main (int argc, char **argv, char **envp)
987 
{
988 
  cache_entry *cache_rules = NULL;
989 
  lf_file_references file_references = lf_include_references;
990 
  decode_table *decode_rules = NULL;
991 
  insn_table *isa = NULL;
992 
  gen_table *gen = NULL;
993 
  char *real_file_name = NULL;
994 
  int is_header = 0;
995 
  int ch;
996 
  lf *standard_out =
997 
    lf_open ("-", "stdout", lf_omit_references, lf_is_text, "igen");
998 
 
999 
  INIT_OPTIONS ();
1000 
 
1001 
  if (argc == 1)
1002 
    {
1003 
      printf ("Usage:\n");
1004 
      printf ("\n");
1005 
      printf ("  igen <config-opts> ... <input-opts>... <output-opts>...\n");
1006 
      printf ("\n");
1007 
      printf ("Config options:\n");
1008 
      printf ("\n");
1009 
      printf ("  -B <bit-size>\n");
1010 
      printf ("\t Set the number of bits in an instruction (deprecated).\n");
1011 
      printf
1012 
        ("\t This option can now be set directly in the instruction table.\n");
1013 
      printf ("\n");
1014 
      printf ("  -D <data-structure>\n");
1015 
      printf
1016 
        ("\t Dump the specified data structure to stdout. Valid structures include:\n");
1017 
      printf
1018 
        ("\t processor-names - list the names of all the processors (models)\n");
1019 
      printf ("\n");
1020 
      printf ("  -F <filter-list>\n");
1021 
      printf
1022 
        ("\t Filter out any instructions with a non-empty flags field that contains\n");
1023 
      printf ("\t a flag not listed in the <filter-list>.\n");
1024 
      printf ("\n");
1025 
      printf ("  -H <high-bit>\n");
1026 
      printf
1027 
        ("\t Set the number of the high (most significant) instruction bit (deprecated).\n");
1028 
      printf
1029 
        ("\t This option can now be set directly in the instruction table.\n");
1030 
      printf ("\n");
1031 
      printf ("  -I <directory>\n");
1032 
      printf
1033 
        ("\t Add <directory> to the list of directories searched when opening a file\n");
1034 
      printf ("\n");
1035 
      printf ("  -M <model-list>\n");
1036 
      printf
1037 
        ("\t Filter out any instructions that do not support at least one of the listed\n");
1038 
      printf
1039 
        ("\t models (An instructions with no model information is considered to support\n");
1040 
      printf ("\t all models.).\n");
1041 
      printf ("\n");
1042 
      printf ("  -N <nr-cpus>\n");
1043 
      printf ("\t Generate a simulator supporting <nr-cpus>\n");
1044 
      printf
1045 
        ("\t Specify `-N 0' to disable generation of the SMP. Specifying `-N 1' will\n");
1046 
      printf
1047 
        ("\t still generate an SMP enabled simulator but will only support one CPU.\n");
1048 
      printf ("\n");
1049 
      printf ("  -T <mechanism>\n");
1050 
      printf
1051 
        ("\t Override the decode mechanism specified by the decode rules\n");
1052 
      printf ("\n");
1053 
      printf ("  -P <prefix>\n");
1054 
      printf
1055 
        ("\t Prepend global names (except itable) with the string <prefix>.\n");
1056 
      printf
1057 
        ("\t Specify -P <module>=<prefix> to set a specific <module>'s prefix.\n");
1058 
      printf ("\n");
1059 
      printf ("  -S <suffix>\n");
1060 
      printf
1061 
        ("\t Replace a global name (suffix) (except itable) with the string <suffix>.\n");
1062 
      printf
1063 
        ("\t Specify -S <module>=<suffix> to change a specific <module>'s name (suffix).\n");
1064 
      printf ("\n");
1065 
      printf ("  -Werror\n");
1066 
      printf ("\t Make warnings errors\n");
1067 
      printf ("  -Wnodiscard\n");
1068 
      printf
1069 
        ("\t Suppress warnings about discarded functions and instructions\n");
1070 
      printf ("  -Wnowidth\n");
1071 
      printf
1072 
        ("\t Suppress warnings about instructions with invalid widths\n");
1073 
      printf ("  -Wnounimplemented\n");
1074 
      printf ("\t Suppress warnings about unimplemented instructions\n");
1075 
      printf ("\n");
1076 
      printf ("  -G [!]<gen-option>\n");
1077 
      printf ("\t Any of the following options:\n");
1078 
      printf ("\n");
1079 
      printf
1080 
        ("\t decode-duplicate       - Override the decode rules, forcing the duplication of\n");
1081 
      printf ("\t                          semantic functions\n");
1082 
      printf
1083 
        ("\t decode-combine         - Combine any duplicated entries within a table\n");
1084 
      printf
1085 
        ("\t decode-zero-reserved   - Override the decode rules, forcing reserved bits to be\n");
1086 
      printf ("\t                          treated as zero.\n");
1087 
      printf
1088 
        ("\t decode-switch-is-goto  - Overfide the padded-switch code type as a goto-switch\n");
1089 
      printf ("\n");
1090 
      printf
1091 
        ("\t gen-conditional-issue  - conditionally issue each instruction\n");
1092 
      printf
1093 
        ("\t gen-delayed-branch     - need both cia and nia passed around\n");
1094 
      printf
1095 
        ("\t gen-direct-access      - use #defines to directly access values\n");
1096 
      printf
1097 
        ("\t gen-zero-r<N>          - arch assumes GPR(<N>) == 0, keep it that way\n");
1098 
      printf
1099 
        ("\t gen-icache[=<N>        - generate an instruction cracking cache of size <N>\n");
1100 
      printf ("\t                          Default size is %d\n",
1101 
              options.gen.icache_size);
1102 
      printf
1103 
        ("\t gen-insn-in-icache     - save original instruction when cracking\n");
1104 
      printf
1105 
        ("\t gen-multi-sim[=MODEL]  - generate multiple simulators - one per model\n");
1106 
      printf
1107 
        ("\t                          If specified MODEL is made the default architecture.\n");
1108 
      printf
1109 
        ("\t                          By default, a single simulator that will\n");
1110 
      printf
1111 
        ("\t                          execute any instruction is generated\n");
1112 
      printf
1113 
        ("\t gen-multi-word         - generate code allowing for multi-word insns\n");
1114 
      printf
1115 
        ("\t gen-semantic-icache    - include semantic code in cracking functions\n");
1116 
      printf
1117 
        ("\t gen-slot-verification  - perform slot verification as part of decode\n");
1118 
      printf ("\t gen-nia-invalid        - NIA defaults to nia_invalid\n");
1119 
      printf ("\t gen-nia-void           - do not compute/return NIA\n");
1120 
      printf ("\n");
1121 
      printf
1122 
        ("\t trace-combine          - report combined entries a rule application\n");
1123 
      printf
1124 
        ("\t trace-entries          - report entries after a rules application\n");
1125 
      printf ("\t trace-rule-rejection   - report each rule as rejected\n");
1126 
      printf ("\t trace-rule-selection   - report each rule as selected\n");
1127 
      printf
1128 
        ("\t trace-insn-insertion   - report each instruction as it is inserted into a decode table\n");
1129 
      printf
1130 
        ("\t trace-rule-expansion   - report each instruction as it is expanded (before insertion into a decode table)\n");
1131 
      printf ("\t trace-all              - enable all trace options\n");
1132 
      printf ("\n");
1133 
      printf
1134 
        ("\t field-widths           - instruction formats specify widths (deprecated)\n");
1135 
      printf
1136 
        ("\t                          By default, an instruction format specifies bit\n");
1137 
      printf ("\t                          positions\n");
1138 
      printf
1139 
        ("\t                          This option can now be set directly in the\n");
1140 
      printf ("\t                          instruction table\n");
1141 
      printf
1142 
        ("\t jumps                  - use jumps instead of function calls\n");
1143 
      printf
1144 
        ("\t omit-line-numbers      - do not include line number information in the output\n");
1145 
      printf ("\n");
1146 
      printf ("Input options:\n");
1147 
      printf ("\n");
1148 
      printf ("  -k <cache-rules> (deprecated)\n");
1149 
      printf ("  -o <decode-rules>\n");
1150 
      printf ("  -i <instruction-table>\n");
1151 
      printf ("\n");
1152 
      printf ("Output options:\n");
1153 
      printf ("\n");
1154 
      printf ("  -x                    Perform expansion (required)\n");
1155 
      printf
1156 
        ("  -n <real-name>        Specify the real name of the next output file\n");
1157 
      printf
1158 
        ("  -h                 Generate the header (.h) file rather than the body (.c)\n");
1159 
      printf ("  -c <output-file>      output icache\n");
1160 
      printf ("  -d <output-file>      output idecode\n");
1161 
      printf ("  -e <output-file>      output engine\n");
1162 
      printf ("  -f <output-file>      output support functions\n");
1163 
      printf ("  -m <output-file>      output model\n");
1164 
      printf ("  -r <output-file>      output multi-sim run\n");
1165 
      printf ("  -s <output-file>      output schematic\n");
1166 
      printf ("  -t <output-file>      output itable\n");
1167 
    }
1168 
 
1169 
  while ((ch = getopt (argc, argv,
1170 
                       "B:D:F:G:H:I:M:N:P:T:W:o:k:i:n:hc:d:e:m:r:s:t:f:x"))
1171 
         != -1)
1172 
    {
1173 
      fprintf (stderr, "  -%c ", ch);
1174 
      if (optarg)
1175 
        fprintf (stderr, "%s ", optarg);
1176 
      fprintf (stderr, "\\\n");
1177 
 
1178 
      switch (ch)
1179 
        {
1180 
 
1181 
        case 'M':
1182 
          filter_parse (&options.model_filter, optarg);
1183 
          break;
1184 
 
1185 
        case 'D':
1186 
          if (strcmp (optarg, "processor-names"))
1187 
            {
1188 
              char *processor;
1189 
              for (processor = filter_next (options.model_filter, "");
1190 
                   processor != NULL;
1191 
                   processor = filter_next (options.model_filter, processor))
1192 
                lf_printf (standard_out, "%s\n", processor);
1193 
            }
1194 
          else
1195 
            error (NULL, "Unknown data structure %s, not dumped\n", optarg);
1196 
          break;
1197 
 
1198 
        case 'F':
1199 
          filter_parse (&options.flags_filter, optarg);
1200 
          break;
1201 
 
1202 
        case 'I':
1203 
          {
1204 
            table_include **dir = &options.include;
1205 
            while ((*dir) != NULL)
1206 
              dir = &(*dir)->next;
1207 
            (*dir) = ZALLOC (table_include);
1208 
            (*dir)->dir = strdup (optarg);
1209 
          }
1210 
          break;
1211 
 
1212 
        case 'B':
1213 
          options.insn_bit_size = a2i (optarg);
1214 
          if (options.insn_bit_size <= 0
1215 
              || options.insn_bit_size > max_insn_bit_size)
1216 
            {
1217 
              error (NULL, "Instruction bitsize must be in range 1..%d\n",
1218 
                     max_insn_bit_size);
1219 
            }
1220 
          if (options.hi_bit_nr != options.insn_bit_size - 1
1221 
              && options.hi_bit_nr != 0)
1222 
            {
1223 
              error (NULL, "Conflict betweem hi-bit-nr and insn-bit-size\n");
1224 
            }
1225 
          break;
1226 
 
1227 
        case 'H':
1228 
          options.hi_bit_nr = a2i (optarg);
1229 
          if (options.hi_bit_nr != options.insn_bit_size - 1
1230 
              && options.hi_bit_nr != 0)
1231 
            {
1232 
              error (NULL, "Conflict between hi-bit-nr and insn-bit-size\n");
1233 
            }
1234 
          break;
1235 
 
1236 
        case 'N':
1237 
          options.gen.smp = a2i (optarg);
1238 
          break;
1239 
 
1240 
        case 'P':
1241 
        case 'S':
1242 
          {
1243 
            igen_module *names;
1244 
            igen_name *name;
1245 
            char *chp;
1246 
            chp = strchr (optarg, '=');
1247 
            if (chp == NULL)
1248 
              {
1249 
                names = &options.module.global;
1250 
                chp = optarg;
1251 
              }
1252 
            else
1253 
              {
1254 
                chp = chp + 1;  /* skip `=' */
1255 
                names = NULL;
1256 
                if (strncmp (optarg, "global=", chp - optarg) == 0)
1257 
                  {
1258 
                    names = &options.module.global;
1259 
                  }
1260 
                if (strncmp (optarg, "engine=", chp - optarg) == 0)
1261 
                  {
1262 
                    names = &options.module.engine;
1263 
                  }
1264 
                if (strncmp (optarg, "icache=", chp - optarg) == 0)
1265 
                  {
1266 
                    names = &options.module.icache;
1267 
                  }
1268 
                if (strncmp (optarg, "idecode=", chp - optarg) == 0)
1269 
                  {
1270 
                    names = &options.module.idecode;
1271 
                  }
1272 
                if (strncmp (optarg, "itable=", chp - optarg) == 0)
1273 
                  {
1274 
                    names = &options.module.itable;
1275 
                  }
1276 
                if (strncmp (optarg, "semantics=", chp - optarg) == 0)
1277 
                  {
1278 
                    names = &options.module.semantics;
1279 
                  }
1280 
                if (strncmp (optarg, "support=", chp - optarg) == 0)
1281 
                  {
1282 
                    names = &options.module.support;
1283 
                  }
1284 
                if (names == NULL)
1285 
                  {
1286 
                    error (NULL, "Prefix `%s' unreconized\n", optarg);
1287 
                  }
1288 
              }
1289 
            switch (ch)
1290 
              {
1291 
              case 'P':
1292 
                name = &names->prefix;
1293 
                break;
1294 
              case 'S':
1295 
                name = &names->suffix;
1296 
                break;
1297 
              default:
1298 
                abort ();       /* Bad switch.  */
1299 
              }
1300 
            name->u = strdup (chp);
1301 
            name->l = strdup (chp);
1302 
            chp = name->u;
1303 
            while (*chp)
1304 
              {
1305 
                if (islower (*chp))
1306 
                  *chp = toupper (*chp);
1307 
                chp++;
1308 
              }
1309 
            if (name == &options.module.global.prefix)
1310 
              {
1311 
                options.module.engine.prefix = options.module.global.prefix;
1312 
                options.module.icache.prefix = options.module.global.prefix;
1313 
                options.module.idecode.prefix = options.module.global.prefix;
1314 
                /* options.module.itable.prefix = options.module.global.prefix; */
1315 
                options.module.semantics.prefix =
1316 
                  options.module.global.prefix;
1317 
                options.module.support.prefix = options.module.global.prefix;
1318 
              }
1319 
            if (name == &options.module.global.suffix)
1320 
              {
1321 
                options.module.engine.suffix = options.module.global.suffix;
1322 
                options.module.icache.suffix = options.module.global.suffix;
1323 
                options.module.idecode.suffix = options.module.global.suffix;
1324 
                /* options.module.itable.suffix = options.module.global.suffix; */
1325 
                options.module.semantics.suffix =
1326 
                  options.module.global.suffix;
1327 
                options.module.support.suffix = options.module.global.suffix;
1328 
              }
1329 
            break;
1330 
          }
1331 
 
1332 
        case 'W':
1333 
          {
1334 
            if (strcmp (optarg, "error") == 0)
1335 
              options.warning = error;
1336 
            else if (strcmp (optarg, "nodiscard") == 0)
1337 
              options.warn.discard = 0;
1338 
            else if (strcmp (optarg, "discard") == 0)
1339 
              options.warn.discard = 1;
1340 
            else if (strcmp (optarg, "nowidth") == 0)
1341 
              options.warn.width = 0;
1342 
            else if (strcmp (optarg, "width") == 0)
1343 
              options.warn.width = 1;
1344 
            else if (strcmp (optarg, "nounimplemented") == 0)
1345 
              options.warn.unimplemented = 0;
1346 
            else if (strcmp (optarg, "unimplemented") == 0)
1347 
              options.warn.unimplemented = 1;
1348 
            else
1349 
              error (NULL, "Unknown -W argument `%s'\n", optarg);
1350 
            break;
1351 
          }
1352 
 
1353 
 
1354 
        case 'G':
1355 
          {
1356 
            int enable_p;
1357 
            char *argp;
1358 
            if (strncmp (optarg, "no-", strlen ("no-")) == 0)
1359 
              {
1360 
                argp = optarg + strlen ("no-");
1361 
                enable_p = 0;
1362 
              }
1363 
            else if (strncmp (optarg, "!", strlen ("!")) == 0)
1364 
              {
1365 
                argp = optarg + strlen ("no-");
1366 
                enable_p = 0;
1367 
              }
1368 
            else
1369 
              {
1370 
                argp = optarg;
1371 
                enable_p = 1;
1372 
              }
1373 
            if (strcmp (argp, "decode-duplicate") == 0)
1374 
              {
1375 
                options.decode.duplicate = enable_p;
1376 
              }
1377 
            else if (strcmp (argp, "decode-combine") == 0)
1378 
              {
1379 
                options.decode.combine = enable_p;
1380 
              }
1381 
            else if (strcmp (argp, "decode-zero-reserved") == 0)
1382 
              {
1383 
                options.decode.zero_reserved = enable_p;
1384 
              }
1385 
 
1386 
            else if (strcmp (argp, "gen-conditional-issue") == 0)
1387 
              {
1388 
                options.gen.conditional_issue = enable_p;
1389 
              }
1390 
            else if (strcmp (argp, "conditional-issue") == 0)
1391 
              {
1392 
                options.gen.conditional_issue = enable_p;
1393 
                options.warning (NULL,
1394 
                                 "Option conditional-issue replaced by gen-conditional-issue\n");
1395 
              }
1396 
            else if (strcmp (argp, "gen-delayed-branch") == 0)
1397 
              {
1398 
                options.gen.delayed_branch = enable_p;
1399 
              }
1400 
            else if (strcmp (argp, "delayed-branch") == 0)
1401 
              {
1402 
                options.gen.delayed_branch = enable_p;
1403 
                options.warning (NULL,
1404 
                                 "Option delayed-branch replaced by gen-delayed-branch\n");
1405 
              }
1406 
            else if (strcmp (argp, "gen-direct-access") == 0)
1407 
              {
1408 
                options.gen.direct_access = enable_p;
1409 
              }
1410 
            else if (strcmp (argp, "direct-access") == 0)
1411 
              {
1412 
                options.gen.direct_access = enable_p;
1413 
                options.warning (NULL,
1414 
                                 "Option direct-access replaced by gen-direct-access\n");
1415 
              }
1416 
            else if (strncmp (argp, "gen-zero-r", strlen ("gen-zero-r")) == 0)
1417 
              {
1418 
                options.gen.zero_reg = enable_p;
1419 
                options.gen.zero_reg_nr = atoi (argp + strlen ("gen-zero-r"));
1420 
              }
1421 
            else if (strncmp (argp, "zero-r", strlen ("zero-r")) == 0)
1422 
              {
1423 
                options.gen.zero_reg = enable_p;
1424 
                options.gen.zero_reg_nr = atoi (argp + strlen ("zero-r"));
1425 
                options.warning (NULL,
1426 
                                 "Option zero-r<N> replaced by gen-zero-r<N>\n");
1427 
              }
1428 
            else if (strncmp (argp, "gen-icache", strlen ("gen-icache")) == 0)
1429 
              {
1430 
                switch (argp[strlen ("gen-icache")])
1431 
                  {
1432 
                  case '=':
1433 
                    options.gen.icache_size =
1434 
                      atoi (argp + strlen ("gen-icache") + 1);
1435 
                    options.gen.icache = enable_p;
1436 
                    break;
1437 
                  case '\0':
1438 
                    options.gen.icache = enable_p;
1439 
                    break;
1440 
                  default:
1441 
                    error (NULL,
1442 
                           "Expecting -Ggen-icache or -Ggen-icache=<N>\n");
1443 
                  }
1444 
              }
1445 
            else if (strcmp (argp, "gen-insn-in-icache") == 0)
1446 
              {
1447 
                options.gen.insn_in_icache = enable_p;
1448 
              }
1449 
            else if (strncmp (argp, "gen-multi-sim", strlen ("gen-multi-sim"))
1450 
                     == 0)
1451 
              {
1452 
                char *arg = &argp[strlen ("gen-multi-sim")];
1453 
                switch (arg[0])
1454 
                  {
1455 
                  case '=':
1456 
                    options.gen.multi_sim = enable_p;
1457 
                    options.gen.default_model = arg + 1;
1458 
                    if (!filter_is_member
1459 
                        (options.model_filter, options.gen.default_model))
1460 
                      error (NULL, "multi-sim model %s unknown\n",
1461 
                             options.gen.default_model);
1462 
                    break;
1463 
                  case '\0':
1464 
                    options.gen.multi_sim = enable_p;
1465 
                    options.gen.default_model = NULL;
1466 
                    break;
1467 
                  default:
1468 
                    error (NULL,
1469 
                           "Expecting -Ggen-multi-sim or -Ggen-multi-sim=<MODEL>\n");
1470 
                    break;
1471 
                  }
1472 
              }
1473 
            else if (strcmp (argp, "gen-multi-word") == 0)
1474 
              {
1475 
                options.gen.multi_word = enable_p;
1476 
              }
1477 
            else if (strcmp (argp, "gen-semantic-icache") == 0)
1478 
              {
1479 
                options.gen.semantic_icache = enable_p;
1480 
              }
1481 
            else if (strcmp (argp, "gen-slot-verification") == 0)
1482 
              {
1483 
                options.gen.slot_verification = enable_p;
1484 
              }
1485 
            else if (strcmp (argp, "verify-slot") == 0)
1486 
              {
1487 
                options.gen.slot_verification = enable_p;
1488 
                options.warning (NULL,
1489 
                                 "Option verify-slot replaced by gen-slot-verification\n");
1490 
              }
1491 
            else if (strcmp (argp, "gen-nia-invalid") == 0)
1492 
              {
1493 
                options.gen.nia = nia_is_invalid;
1494 
              }
1495 
            else if (strcmp (argp, "default-nia-minus-one") == 0)
1496 
              {
1497 
                options.gen.nia = nia_is_invalid;
1498 
                options.warning (NULL,
1499 
                                 "Option default-nia-minus-one replaced by gen-nia-invalid\n");
1500 
              }
1501 
            else if (strcmp (argp, "gen-nia-void") == 0)
1502 
              {
1503 
                options.gen.nia = nia_is_void;
1504 
              }
1505 
            else if (strcmp (argp, "trace-all") == 0)
1506 
              {
1507 
                memset (&options.trace, enable_p, sizeof (options.trace));
1508 
              }
1509 
            else if (strcmp (argp, "trace-combine") == 0)
1510 
              {
1511 
                options.trace.combine = enable_p;
1512 
              }
1513 
            else if (strcmp (argp, "trace-entries") == 0)
1514 
              {
1515 
                options.trace.entries = enable_p;
1516 
              }
1517 
            else if (strcmp (argp, "trace-rule-rejection") == 0)
1518 
              {
1519 
                options.trace.rule_rejection = enable_p;
1520 
              }
1521 
            else if (strcmp (argp, "trace-rule-selection") == 0)
1522 
              {
1523 
                options.trace.rule_selection = enable_p;
1524 
              }
1525 
            else if (strcmp (argp, "trace-insn-insertion") == 0)
1526 
              {
1527 
                options.trace.insn_insertion = enable_p;
1528 
              }
1529 
            else if (strcmp (argp, "trace-insn-expansion") == 0)
1530 
              {
1531 
                options.trace.insn_expansion = enable_p;
1532 
              }
1533 
            else if (strcmp (argp, "jumps") == 0)
1534 
              {
1535 
                options.gen.code = generate_jumps;
1536 
              }
1537 
            else if (strcmp (argp, "field-widths") == 0)
1538 
              {
1539 
                options.insn_specifying_widths = enable_p;
1540 
              }
1541 
            else if (strcmp (argp, "omit-line-numbers") == 0)
1542 
              {
1543 
                file_references = lf_omit_references;
1544 
              }
1545 
            else
1546 
              {
1547 
                error (NULL, "Unknown option %s\n", optarg);
1548 
              }
1549 
            break;
1550 
          }
1551 
 
1552 
        case 'i':
1553 
          isa = load_insn_table (optarg, cache_rules);
1554 
          if (isa->illegal_insn == NULL)
1555 
            error (NULL, "illegal-instruction missing from insn table\n");
1556 
          break;
1557 
 
1558 
        case 'x':
1559 
          gen = do_gen (isa, decode_rules);
1560 
          break;
1561 
 
1562 
        case 'o':
1563 
          decode_rules = load_decode_table (optarg);
1564 
          break;
1565 
 
1566 
        case 'k':
1567 
          if (isa != NULL)
1568 
            error (NULL, "Cache file must appear before the insn file\n");
1569 
          cache_rules = load_cache_table (optarg);
1570 
          break;
1571 
 
1572 
        case 'n':
1573 
          real_file_name = strdup (optarg);
1574 
          break;
1575 
 
1576 
        case 'h':
1577 
          is_header = 1;
1578 
          break;
1579 
 
1580 
        case 'c':
1581 
        case 'd':
1582 
        case 'e':
1583 
        case 'f':
1584 
        case 'm':
1585 
        case 'r':
1586 
        case 's':
1587 
        case 't':
1588 
          {
1589 
            lf *file = lf_open (optarg, real_file_name, file_references,
1590 
                                (is_header ? lf_is_h : lf_is_c),
1591 
                                argv[0]);
1592 
            if (gen == NULL && ch != 't' && ch != 'm' && ch != 'f')
1593 
              {
1594 
                options.warning (NULL,
1595 
                                 "Explicitly generate tables with -x option\n");
1596 
                gen = do_gen (isa, decode_rules);
1597 
              }
1598 
            lf_print__file_start (file);
1599 
            switch (ch)
1600 
              {
1601 
              case 'm':
1602 
                if (is_header)
1603 
                  gen_model_h (file, isa);
1604 
                else
1605 
                  gen_model_c (file, isa);
1606 
                break;
1607 
              case 't':
1608 
                if (is_header)
1609 
                  gen_itable_h (file, isa);
1610 
                else
1611 
                  gen_itable_c (file, isa);
1612 
                break;
1613 
              case 'f':
1614 
                if (is_header)
1615 
                  gen_support_h (file, isa);
1616 
                else
1617 
                  gen_support_c (file, isa);
1618 
                break;
1619 
              case 'r':
1620 
                if (is_header)
1621 
                  options.warning (NULL, "-hr option ignored\n");
1622 
                else
1623 
                  gen_run_c (file, gen);
1624 
                break;
1625 
              case 's':
1626 
                if (is_header)
1627 
                  gen_semantics_h (file, gen->semantics, isa->max_nr_words);
1628 
                else
1629 
                  gen_semantics_c (file, gen->semantics, isa->caches);
1630 
                break;
1631 
              case 'd':
1632 
                if (is_header)
1633 
                  gen_idecode_h (file, gen, isa, cache_rules);
1634 
                else
1635 
                  gen_idecode_c (file, gen, isa, cache_rules);
1636 
                break;
1637 
              case 'e':
1638 
                if (is_header)
1639 
                  gen_engine_h (file, gen, isa, cache_rules);
1640 
                else
1641 
                  gen_engine_c (file, gen, isa, cache_rules);
1642 
                break;
1643 
              case 'c':
1644 
                if (is_header)
1645 
                  gen_icache_h (file,
1646 
                                gen->semantics,
1647 
                                isa->functions, isa->max_nr_words);
1648 
                else
1649 
                  gen_icache_c (file,
1650 
                                gen->semantics, isa->functions, cache_rules);
1651 
                break;
1652 
              }
1653 
            lf_print__file_finish (file);
1654 
            lf_close (file);
1655 
            is_header = 0;
1656 
          }
1657 
          real_file_name = NULL;
1658 
          break;
1659 
        default:
1660 
          ERROR ("Bad switch");
1661 
        }
1662 
    }
1663 
  return (0);
1664 
}

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