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1 578 markom 
/*  This file is part of the program psim.
2 
 
3 
    Copyright (C) 1994-1998, Andrew Cagney <cagney@highland.com.au>
4 
 
5 
    This program is free software; you can redistribute it and/or modify
6 
    it under the terms of the GNU General Public License as published by
7 
    the Free Software Foundation; either version 2 of the License, or
8 
    (at your option) any later version.
9 
 
10 
    This program is distributed in the hope that it will be useful,
11 
    but WITHOUT ANY WARRANTY; without even the implied warranty of
12 
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13 
    GNU General Public License for more details.
14 
 
15 
    You should have received a copy of the GNU General Public License
16 
    along with this program; if not, write to the Free Software
17 
    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18 
 
19 
    */
20 
 
21 
 
22 
 
23 
#include <getopt.h>
24 
 
25 
#include "misc.h"
26 
#include "lf.h"
27 
#include "table.h"
28 
#include "config.h"
29 
#include "filter.h"
30 
 
31 
#include "igen.h"
32 
 
33 
#include "ld-insn.h"
34 
#include "ld-decode.h"
35 
#include "ld-cache.h"
36 
 
37 
#include "gen.h"
38 
 
39 
#include "gen-model.h"
40 
#include "gen-icache.h"
41 
#include "gen-itable.h"
42 
#include "gen-idecode.h"
43 
#include "gen-semantics.h"
44 
#include "gen-engine.h"
45 
#include "gen-support.h"
46 
#include "gen-engine.h"
47 
 
48 
 
49 
/****************************************************************/
50 
 
51 
 
52 
/* Semantic functions */
53 
 
54 
int
55 
print_semantic_function_formal (lf *file,
56 
                                int nr_prefetched_words)
57 
{
58 
  int nr = 0;
59 
  int word_nr;
60 
  if (options.gen.icache || nr_prefetched_words < 0)
61 
    {
62 
      nr += lf_printf (file, "SIM_DESC sd,\n");
63 
      nr += lf_printf (file, "%sidecode_cache *cache_entry,\n",
64 
                       options.module.global.prefix.l);
65 
      nr += lf_printf (file, "%sinstruction_address cia",
66 
                       options.module.global.prefix.l);
67 
    }
68 
  else if (options.gen.smp)
69 
    {
70 
      nr += lf_printf (file, "sim_cpu *cpu,\n");
71 
      for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
72 
        {
73 
          nr += lf_printf (file, "%sinstruction_word instruction_%d,\n",
74 
                           options.module.global.prefix.l,
75 
                           word_nr);
76 
        }
77 
      nr += lf_printf (file, "%sinstruction_address cia",
78 
                       options.module.global.prefix.l);
79 
    }
80 
  else
81 
    {
82 
      nr += lf_printf (file, "SIM_DESC sd,\n");
83 
      for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
84 
        {
85 
          nr += lf_printf (file, "%sinstruction_word instruction_%d,\n",
86 
                           options.module.global.prefix.l,
87 
                           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,
97 
                                int nr_prefetched_words)
98 
{
99 
  int nr = 0;
100 
  int word_nr;
101 
  if (options.gen.icache || nr_prefetched_words < 0)
102 
    {
103 
      nr += lf_printf (file, "sd, cache_entry, cia");
104 
    }
105 
  else
106 
    {
107 
      if (options.gen.smp)
108 
        nr += lf_printf (file, "cpu");
109 
      else
110 
        nr += lf_printf (file, "sd");
111 
      for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
112 
        nr += lf_printf (file, ", instruction_%d", word_nr);
113 
      nr += lf_printf (file, ", cia");
114 
    }
115 
  return nr;
116 
}
117 
 
118 
int
119 
print_semantic_function_type (lf *file)
120 
{
121 
  int nr = 0;
122 
  nr += lf_printf (file, "%sinstruction_address",
123 
                   options.module.global.prefix.l);
124 
  return nr;
125 
}
126 
 
127 
 
128 
/* Idecode functions */
129 
 
130 
int
131 
print_icache_function_formal (lf *file,
132 
                              int nr_prefetched_words)
133 
{
134 
  int nr = 0;
135 
  int word_nr;
136 
  if (options.gen.smp)
137 
      nr += lf_printf (file, "sim_cpu *cpu,\n");
138 
  else
139 
      nr += lf_printf (file, "SIM_DESC sd,\n");
140 
  for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
141 
    nr += lf_printf (file, " %sinstruction_word instruction_%d,\n",
142 
                     options.module.global.prefix.l, word_nr);
143 
  nr += lf_printf (file, " %sinstruction_address cia,\n",
144 
                   options.module.global.prefix.l);
145 
  nr += lf_printf (file, " %sidecode_cache *cache_entry",
146 
                   options.module.global.prefix.l);
147 
  return nr;
148 
}
149 
 
150 
int
151 
print_icache_function_actual (lf *file,
152 
                              int nr_prefetched_words)
153 
{
154 
  int nr = 0;
155 
  int word_nr;
156 
  if (options.gen.smp)
157 
    nr += lf_printf (file, "cpu");
158 
  else
159 
    nr += lf_printf (file, "sd");
160 
  for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
161 
    nr += lf_printf (file, ", instruction_%d", word_nr);
162 
  nr += lf_printf (file, ", cia, cache_entry");
163 
  return nr;
164 
}
165 
 
166 
int
167 
print_icache_function_type (lf *file)
168 
{
169 
  int nr;
170 
  if (options.gen.semantic_icache)
171 
    {
172 
      nr = print_semantic_function_type (file);
173 
    }
174 
  else
175 
    {
176 
      nr = lf_printf (file, "%sidecode_semantic *",
177 
                      options.module.global.prefix.l);
178 
    }
179 
  return nr;
180 
}
181 
 
182 
 
183 
/* Function names */
184 
 
185 
static int
186 
print_opcode_bits (lf *file,
187 
                   opcode_bits *bits)
188 
{
189 
  int nr = 0;
190 
  if (bits == NULL)
191 
    return nr;
192 
  nr += lf_putchr (file, '_');
193 
  nr += lf_putstr (file, bits->field->val_string);
194 
  if (bits->opcode->is_boolean && bits->value == 0)
195 
    nr += lf_putint (file, bits->opcode->boolean_constant);
196 
  else if (!bits->opcode->is_boolean) {
197 
    if (bits->opcode->last < bits->field->last)
198 
      nr += lf_putint (file, bits->value << (bits->field->last - bits->opcode->last));
199 
    else
200 
      nr += lf_putint (file, bits->value);
201 
  }
202 
  nr += print_opcode_bits (file, bits->next);
203 
  return nr;
204 
}
205 
 
206 
static int
207 
print_c_name (lf *file,
208 
              const char *name)
209 
{
210 
  int nr = 0;
211 
  const char *pos;
212 
  for (pos = name; *pos != '\0'; pos++)
213 
    {
214 
      switch (*pos)
215 
        {
216 
        case '/':
217 
        case '-':
218 
          break;
219 
        case ' ':
220 
        case '.':
221 
          nr += lf_putchr (file, '_');
222 
          break;
223 
        default:
224 
          nr += lf_putchr (file, *pos);
225 
          break;
226 
        }
227 
    }
228 
  return nr;
229 
}
230 
 
231 
extern int
232 
print_function_name (lf *file,
233 
                     const char *basename,
234 
                     const char *format_name,
235 
                     const char *model_name,
236 
                     opcode_bits *expanded_bits,
237 
                     lf_function_name_prefixes prefix)
238 
{
239 
  int nr = 0;
240 
  /* the prefix */
241 
  switch (prefix)
242 
    {
243 
    case function_name_prefix_semantics:
244 
      nr += lf_printf (file, "%s", options.module.semantics.prefix.l);
245 
      nr += lf_printf (file, "semantic_");
246 
      break;
247 
    case function_name_prefix_idecode:
248 
      nr += lf_printf (file, "%s", options.module.idecode.prefix.l);
249 
      nr += lf_printf (file, "idecode_");
250 
      break;
251 
    case function_name_prefix_itable:
252 
      nr += lf_printf (file, "%sitable_", options.module.itable.prefix.l);
253 
      break;
254 
    case function_name_prefix_icache:
255 
      nr += lf_printf (file, "%s", options.module.icache.prefix.l);
256 
      nr += lf_printf (file, "icache_");
257 
      break;
258 
    case function_name_prefix_engine:
259 
      nr += lf_printf (file, "%s", options.module.engine.prefix.l);
260 
      nr += lf_printf (file, "engine_");
261 
    default:
262 
      break;
263 
    }
264 
 
265 
  if (model_name != NULL)
266 
    {
267 
      nr += print_c_name (file, model_name);
268 
      nr += lf_printf (file, "_");
269 
    }
270 
 
271 
  /* the function name */
272 
  nr += print_c_name (file, basename);
273 
 
274 
  /* the format name if available */
275 
  if (format_name != NULL)
276 
    {
277 
      nr += lf_printf (file, "_");
278 
      nr += print_c_name (file, format_name);
279 
    }
280 
 
281 
  /* the suffix */
282 
  nr += print_opcode_bits (file, expanded_bits);
283 
 
284 
  return nr;
285 
}
286 
 
287 
 
288 
void
289 
print_my_defines (lf *file,
290 
                  const char *basename,
291 
                  const char *format_name,
292 
                  opcode_bits *expanded_bits)
293 
{
294 
  /* #define MY_INDEX xxxxx */
295 
  lf_indent_suppress (file);
296 
  lf_printf (file, "#undef MY_INDEX\n");
297 
  lf_indent_suppress (file);
298 
  lf_printf (file, "#define MY_INDEX ");
299 
  print_function_name (file,
300 
                       basename, format_name, NULL,
301 
                       NULL,
302 
                       function_name_prefix_itable);
303 
  lf_printf (file, "\n");
304 
  /* #define MY_PREFIX xxxxxx */
305 
  lf_indent_suppress (file);
306 
  lf_printf (file, "#undef ");
307 
  print_function_name (file,
308 
                       basename, format_name, NULL,
309 
                       expanded_bits,
310 
                       function_name_prefix_none);
311 
  lf_printf (file, "\n");
312 
  lf_indent_suppress (file);
313 
  lf_printf (file, "#undef MY_PREFIX\n");
314 
  lf_indent_suppress (file);
315 
  lf_printf (file, "#define MY_PREFIX ");
316 
  print_function_name (file,
317 
                       basename, format_name, NULL,
318 
                       expanded_bits,
319 
                       function_name_prefix_none);
320 
  lf_printf (file, "\n");
321 
  /* #define MY_NAME xxxxxx */
322 
  lf_indent_suppress (file);
323 
  lf_indent_suppress (file);
324 
  lf_printf (file, "#undef MY_NAME\n");
325 
  lf_indent_suppress (file);
326 
  lf_printf (file, "#define MY_NAME \"");
327 
  print_function_name (file,
328 
                       basename, format_name, NULL,
329 
                       expanded_bits,
330 
                       function_name_prefix_none);
331 
  lf_printf (file, "\"\n");
332 
}
333 
 
334 
 
335 
static int
336 
print_itrace_prefix (lf *file)
337 
{
338 
  const char *prefix = "trace_prefix (";
339 
  int indent = strlen (prefix);
340 
  lf_printf (file, "%sSD, CPU, cia, CIA, TRACE_LINENUM_P (CPU), \\\n", prefix);
341 
  lf_indent (file, +indent);
342 
  lf_printf (file, "%sitable[MY_INDEX].file, \\\n", options.module.itable.prefix.l);
343 
  lf_printf (file, "%sitable[MY_INDEX].line_nr, \\\n", options.module.itable.prefix.l);
344 
  lf_printf (file, "\"");
345 
  return indent;
346 
}
347 
 
348 
 
349 
static void
350 
print_itrace_format (lf *file,
351 
                     insn_mnemonic_entry *assembler)
352 
{
353 
  /* pass=1 is fmt string; pass=2 is arguments */
354 
  int pass;
355 
  /* print the format string */
356 
  for (pass = 1; pass <= 2; pass++)
357 
    {
358 
      const char *chp = assembler->format;
359 
      chp++; /* skip the leading quote */
360 
      /* write out the format/args */
361 
      while (*chp != '\0')
362 
        {
363 
          if (chp[0] == '\\' && (chp[1] == '<' || chp[1] == '>'))
364 
            {
365 
              if (pass == 1)
366 
                lf_putchr (file, chp[1]);
367 
              chp += 2;
368 
            }
369 
          else if (chp[0] == '<' || chp[0] == '%')
370 
            {
371 
              /* parse [ "%" ... ] "<" [ func "#" ] param ">" */
372 
              const char *fmt;
373 
              const char *func;
374 
              int strlen_func;
375 
              const char *param;
376 
              int strlen_param;
377 
              /* the "%" ... "<" format */
378 
              fmt = chp;
379 
              while (chp[0] != '<' && chp[0] != '\0')
380 
                chp++;
381 
              if (chp[0] != '<')
382 
                error (assembler->line, "Missing `<' after `%%'\n");
383 
              chp++;
384 
              /* [ "func" # ] OR "param" */
385 
              func = chp;
386 
              param = chp;
387 
              while (chp[0] != '>' && chp[0] != '#' && chp[0] != '\0')
388 
                chp++;
389 
              strlen_func = chp - func;
390 
              if (chp[0] == '#')
391 
                {
392 
                  chp++;
393 
                  param = chp;
394 
                  while (chp[0] != '>' && chp[0] != '\0')
395 
                    chp++;
396 
                }
397 
              strlen_param = chp - param;
398 
              if (chp[0] != '>')
399 
                error (assembler->line, "Missing closing `>' in assembler string\n");
400 
              chp++;
401 
              /* now process it */
402 
              if (pass == 2)
403 
                lf_printf (file, ", \\\n");
404 
              if (strncmp (fmt, "<", 1) == 0)
405 
                /* implicit long int format */
406 
                {
407 
                  if (pass == 1)
408 
                    lf_printf (file, "%%ld");
409 
                  else
410 
                    {
411 
                      lf_printf (file, "(long) ");
412 
                      lf_write (file, param, strlen_param);
413 
                    }
414 
                }
415 
              else if (strncmp (fmt, "%<", 2) == 0)
416 
                /* explicit format */
417 
                {
418 
                  if (pass == 1)
419 
                    lf_printf (file, "%%");
420 
                  else
421 
                    lf_write (file, param, strlen_param);
422 
                }
423 
              else if (strncmp (fmt, "%s<", 3) == 0)
424 
                /* string format */
425 
                {
426 
                  if (pass == 1)
427 
                    lf_printf (file, "%%s");
428 
                  else
429 
                    {
430 
                      lf_printf (file, "%sstr_", options.module.global.prefix.l);
431 
                      lf_write (file, func, strlen_func);
432 
                      lf_printf (file, " (SD_, ");
433 
                      lf_write (file, param, strlen_param);
434 
                      lf_printf (file, ")");
435 
                    }
436 
                }
437 
              else if (strncmp (fmt, "%lx<", 4) == 0)
438 
                /* simple hex */
439 
                {
440 
                  if (pass == 1)
441 
                    lf_printf (file, "%%lx");
442 
                  else
443 
                    {
444 
                      lf_printf (file, "(unsigned long) ");
445 
                      lf_write (file, param, strlen_param);
446 
                    }
447 
                }
448 
              else if (strncmp (fmt, "%08lx<", 6) == 0)
449 
                /* simple hex */
450 
                {
451 
                  if (pass == 1)
452 
                    lf_printf (file, "%%08lx");
453 
                  else
454 
                    {
455 
                      lf_printf (file, "(unsigned long) ");
456 
                      lf_write (file, param, strlen_param);
457 
                    }
458 
                }
459 
              else
460 
                error (assembler->line, "Unknown assembler string format\n");
461 
            }
462 
          else
463 
            {
464 
              if (pass == 1)
465 
                lf_putchr (file, chp[0]);
466 
              chp += 1;
467 
            }
468 
        }
469 
    }
470 
  lf_printf (file, ");\n");
471 
}
472 
 
473 
 
474 
void
475 
print_itrace (lf *file,
476 
              insn_entry *insn,
477 
              int idecode)
478 
{
479 
  /* NB: Here we escape each EOLN. This is so that the the compiler
480 
     treats a trace function call as a single line.  Consequently any
481 
     errors in the line are refered back to the same igen assembler
482 
     source line */
483 
  const char *phase = (idecode) ? "DECODE" : "INSN";
484 
  lf_printf (file, "\n");
485 
  lf_indent_suppress (file);
486 
  lf_printf (file, "#if defined (WITH_TRACE)\n");
487 
  lf_printf (file, "/* generate a trace prefix if any tracing enabled */\n");
488 
  lf_printf (file, "if (TRACE_ANY_P (CPU))\n");
489 
  lf_printf (file, "  {\n");
490 
  lf_indent (file, +4);
491 
  {
492 
    if (insn->mnemonics != NULL)
493 
      {
494 
        insn_mnemonic_entry *assembler = insn->mnemonics;
495 
        int is_first = 1;
496 
        do
497 
          {
498 
            if (assembler->condition != NULL)
499 
              {
500 
                int indent;
501 
                lf_printf (file, "%sif (%s)\n",
502 
                           is_first ? "" : "else ",
503 
                           assembler->condition);
504 
                lf_indent (file, +2);
505 
                lf_print__line_ref (file, assembler->line);
506 
                indent = print_itrace_prefix (file);
507 
                print_itrace_format (file, assembler);
508 
                lf_print__internal_ref (file);
509 
                lf_indent (file, -indent);
510 
                lf_indent (file, -2);
511 
                if (assembler->next == NULL)
512 
                  error (assembler->line, "Missing final unconditional assembler\n");
513 
              }
514 
            else
515 
              {
516 
                int indent;
517 
                if (!is_first)
518 
                  {
519 
                    lf_printf (file, "else\n");
520 
                    lf_indent (file, +2);
521 
                  }
522 
                lf_print__line_ref (file, assembler->line);
523 
                indent = print_itrace_prefix (file);
524 
                print_itrace_format (file, assembler);
525 
                lf_print__internal_ref (file);
526 
                lf_indent (file, -indent);
527 
                if (!is_first)
528 
                  lf_indent (file, -2);
529 
                if (assembler->next != NULL)
530 
                  error (assembler->line, "Unconditional assembler is not last\n");
531 
              }
532 
            is_first = 0;
533 
            assembler = assembler->next;
534 
          }
535 
        while (assembler != NULL);
536 
      }
537 
    else
538 
      {
539 
        int indent;
540 
        lf_indent (file, +2);
541 
        lf_print__line_ref (file, insn->line);
542 
        indent = print_itrace_prefix (file);
543 
        lf_printf (file, "%%s\", \\\n");
544 
        lf_printf (file, "itable[MY_INDEX].name);\n");
545 
        lf_print__internal_ref (file);
546 
        lf_indent (file, -indent);
547 
        lf_indent (file, -2);
548 
      }
549 
    lf_printf (file, "/* trace the instruction execution if enabled */\n");
550 
    lf_printf (file, "if (TRACE_%s_P (CPU))\n", phase);
551 
    lf_printf (file, "  trace_generic (SD, CPU, TRACE_%s_IDX, \" %%s\", itable[MY_INDEX].name);\n", phase);
552 
  }
553 
  lf_indent (file, -4);
554 
  lf_printf (file, "  }\n");
555 
  lf_indent_suppress (file);
556 
  lf_printf (file, "#endif\n");
557 
}
558 
 
559 
 
560 
void
561 
print_sim_engine_abort (lf *file,
562 
                        const char *message)
563 
{
564 
  lf_printf (file, "sim_engine_abort (SD, CPU, cia, ");
565 
  lf_printf (file, "\"%s\"", message);
566 
  lf_printf (file, ");\n");
567 
}
568 
 
569 
 
570 
void
571 
print_include (lf *file,
572 
               igen_module module)
573 
{
574 
  lf_printf (file, "#include \"%s%s.h\"\n", module.prefix.l, module.suffix.l);
575 
}
576 
 
577 
void
578 
print_include_inline (lf *file,
579 
                      igen_module module)
580 
{
581 
  lf_printf (file, "#if C_REVEALS_MODULE_P (%s_INLINE)\n", module.suffix.u);
582 
  lf_printf (file, "#include \"%s%s.c\"\n", module.prefix.l, module.suffix.l);
583 
  lf_printf (file, "#else\n");
584 
  print_include (file, module);
585 
  lf_printf (file, "#endif\n");
586 
  lf_printf (file, "\n");
587 
}
588 
 
589 
void
590 
print_includes (lf *file)
591 
{
592 
  lf_printf (file, "\n");
593 
  lf_printf (file, "#include \"sim-inline.c\"\n");
594 
  lf_printf (file, "\n");
595 
  print_include_inline (file, options.module.itable);
596 
  print_include_inline (file, options.module.idecode);
597 
  print_include_inline (file, options.module.support);
598 
}
599 
 
600 
 
601 
/****************************************************************/
602 
 
603 
 
604 
static void
605 
gen_semantics_h (lf *file,
606 
                 insn_list *semantics,
607 
                 int max_nr_words)
608 
{
609 
  int word_nr;
610 
  insn_list *semantic;
611 
  for (word_nr = -1; word_nr <= max_nr_words; word_nr++)
612 
    {
613 
      lf_printf (file, "typedef ");
614 
      print_semantic_function_type (file);
615 
      lf_printf (file, " %sidecode_semantic",
616 
                 options.module.global.prefix.l);
617 
      if (word_nr >= 0)
618 
        lf_printf (file, "_%d", word_nr);
619 
      lf_printf (file, "\n(");
620 
      lf_indent (file, +1);
621 
      print_semantic_function_formal (file, word_nr);
622 
      lf_indent (file, -1);
623 
      lf_printf (file, ");\n");
624 
      lf_printf (file, "\n");
625 
    }
626 
  switch (options.gen.code)
627 
    {
628 
    case generate_calls:
629 
      for (semantic = semantics; semantic != NULL; semantic = semantic->next)
630 
        {
631 
          /* Ignore any special/internal instructions */
632 
          if (semantic->insn->nr_words == 0)
633 
            continue;
634 
          print_semantic_declaration (file,
635 
                                      semantic->insn,
636 
                                      semantic->expanded_bits,
637 
                                      semantic->opcodes,
638 
                                      semantic->nr_prefetched_words);
639 
        }
640 
      break;
641 
    case generate_jumps:
642 
      lf_print__this_file_is_empty (file, "generating jumps");
643 
      break;
644 
    }
645 
}
646 
 
647 
 
648 
static void
649 
gen_semantics_c (lf *file,
650 
                 insn_list *semantics,
651 
                 cache_entry *cache_rules)
652 
{
653 
  if (options.gen.code == generate_calls)
654 
    {
655 
      insn_list *semantic;
656 
      print_includes (file);
657 
      print_include (file, options.module.semantics);
658 
      lf_printf (file, "\n");
659 
 
660 
      for (semantic = semantics; semantic != NULL; semantic = semantic->next)
661 
        {
662 
          /* Ignore any special/internal instructions */
663 
          if (semantic->insn->nr_words == 0)
664 
            continue;
665 
          print_semantic_definition (file,
666 
                                     semantic->insn,
667 
                                     semantic->expanded_bits,
668 
                                     semantic->opcodes,
669 
                                     cache_rules,
670 
                                     semantic->nr_prefetched_words);
671 
        }
672 
    }
673 
  else
674 
    {
675 
      lf_print__this_file_is_empty (file, "generating jump engine");
676 
    }
677 
}
678 
 
679 
 
680 
/****************************************************************/
681 
 
682 
 
683 
static void
684 
gen_icache_h (lf *file,
685 
              insn_list *semantic,
686 
              function_entry *functions,
687 
              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,
696 
                 word_nr);
697 
      print_icache_function_formal(file, word_nr);
698 
      lf_printf (file, ");\n");
699 
      lf_printf (file, "\n");
700 
    }
701 
  if (options.gen.code == generate_calls
702 
      && options.gen.icache)
703 
    {
704 
      function_entry_traverse (file, functions,
705 
                               print_icache_internal_function_declaration,
706 
                               NULL);
707 
      while (semantic != NULL)
708 
        {
709 
          print_icache_declaration (file,
710 
                                    semantic->insn,
711 
                                    semantic->expanded_bits,
712 
                                    semantic->opcodes,
713 
                                    semantic->nr_prefetched_words);
714 
          semantic = semantic->next;
715 
        }
716 
    }
717 
  else
718 
    {
719 
      lf_print__this_file_is_empty (file, "generating jump engine");
720 
    }
721 
}
722 
 
723 
static void
724 
gen_icache_c (lf *file,
725 
              insn_list *semantic,
726 
              function_entry *functions,
727 
              cache_entry *cache_rules)
728 
{
729 
  /* output `internal' invalid/floating-point unavailable functions
730 
     where needed */
731 
  if (options.gen.code == generate_calls
732 
      && options.gen.icache)
733 
    {
734 
      lf_printf (file, "\n");
735 
      lf_printf (file, "#include \"cpu.h\"\n");
736 
      lf_printf (file, "#include \"idecode.h\"\n");
737 
      lf_printf (file, "#include \"semantics.h\"\n");
738 
      lf_printf (file, "#include \"icache.h\"\n");
739 
      lf_printf (file, "#include \"support.h\"\n");
740 
      lf_printf (file, "\n");
741 
      function_entry_traverse (file, functions,
742 
                               print_icache_internal_function_definition,
743 
                               NULL);
744 
      lf_printf (file, "\n");
745 
      while (semantic != NULL)
746 
        {
747 
          print_icache_definition (file,
748 
                                   semantic->insn,
749 
                                   semantic->expanded_bits,
750 
                                   semantic->opcodes,
751 
                                   cache_rules,
752 
                                   semantic->nr_prefetched_words);
753 
          semantic = semantic->next;
754 
        }
755 
    }
756 
  else
757 
    {
758 
      lf_print__this_file_is_empty (file, "generating jump engine");
759 
    }
760 
}
761 
 
762 
 
763 
/****************************************************************/
764 
 
765 
 
766 
static void
767 
gen_idecode_h (lf *file,
768 
               gen_table *gen,
769 
               insn_table *insns,
770 
               cache_entry *cache_rules)
771 
{
772 
  lf_printf (file, "typedef unsigned%d %sinstruction_word;\n",
773 
             options.insn_bit_size, options.module.global.prefix.l);
774 
  if (options.gen.delayed_branch)
775 
    {
776 
      lf_printf (file, "typedef struct _%sinstruction_address {\n",
777 
                 options.module.global.prefix.l);
778 
      lf_printf (file, "  address_word ip; /* instruction pointer */\n");
779 
      lf_printf (file, "  address_word dp; /* delayed-slot pointer */\n");
780 
      lf_printf (file, "} %sinstruction_address;\n", options.module.global.prefix.l);
781 
    }
782 
  else
783 
    {
784 
      lf_printf (file, "typedef address_word %sinstruction_address;\n",
785 
                 options.module.global.prefix.l);
786 
 
787 
    }
788 
  if (options.gen.nia == nia_is_invalid
789 
      && strlen (options.module.global.prefix.u) > 0)
790 
    {
791 
      lf_indent_suppress (file);
792 
      lf_printf (file, "#define %sINVALID_INSTRUCTION_ADDRESS ",
793 
                 options.module.global.prefix.u);
794 
      lf_printf (file, "INVALID_INSTRUCTION_ADDRESS\n");
795 
    }
796 
  lf_printf (file, "\n");
797 
  print_icache_struct (file, insns, cache_rules);
798 
  lf_printf (file, "\n");
799 
  if (options.gen.icache)
800 
    {
801 
      ERROR ("FIXME - idecode with icache suffering from bit-rot");
802 
    }
803 
  else
804 
    {
805 
      gen_list *entry;
806 
      for (entry = gen->tables; entry != NULL; entry = entry->next)
807 
        {
808 
          print_idecode_issue_function_header (file,
809 
                                               (options.gen.multi_sim
810 
                                                ? entry->model->name
811 
                                                : NULL),
812 
                                               is_function_declaration,
813 
                                               1/*ALWAYS ONE WORD*/);
814 
        }
815 
      if (options.gen.multi_sim)
816 
        {
817 
          print_idecode_issue_function_header (file,
818 
                                               NULL,
819 
                                               is_function_variable,
820 
                                               1/*ALWAYS ONE WORD*/);
821 
        }
822 
    }
823 
}
824 
 
825 
 
826 
static void
827 
gen_idecode_c (lf *file,
828 
               gen_table *gen,
829 
               insn_table *isa,
830 
               cache_entry *cache_rules)
831 
{
832 
  /* the intro */
833 
  print_includes (file);
834 
  print_include_inline (file, options.module.semantics);
835 
  lf_printf (file, "\n");
836 
 
837 
  print_idecode_globals (file);
838 
  lf_printf (file, "\n");
839 
 
840 
  switch (options.gen.code)
841 
    {
842 
    case generate_calls:
843 
      {
844 
        gen_list *entry;
845 
        for (entry = gen->tables; entry != NULL; entry = entry->next)
846 
          {
847 
            print_idecode_lookups (file, entry->table, cache_rules);
848 
 
849 
            /* output the main idecode routine */
850 
            if (!options.gen.icache)
851 
              {
852 
                print_idecode_issue_function_header (file,
853 
                                                     (options.gen.multi_sim
854 
                                                      ? entry->model->name
855 
                                                      : NULL),
856 
                                                     1/*is definition*/,
857 
                                                     1/*ALWAYS ONE WORD*/);
858 
                lf_printf (file, "{\n");
859 
                lf_indent (file, +2);
860 
                lf_printf (file, "%sinstruction_address nia;\n",
861 
                           options.module.global.prefix.l);
862 
                print_idecode_body (file, entry->table, "nia =");
863 
                lf_printf (file, "return nia;");
864 
                lf_indent (file, -2);
865 
                lf_printf (file, "}\n");
866 
              }
867 
          }
868 
        break;
869 
      }
870 
    case generate_jumps:
871 
      {
872 
        lf_print__this_file_is_empty (file, "generating a jump engine");
873 
        break;
874 
      }
875 
    }
876 
}
877 
 
878 
 
879 
/****************************************************************/
880 
 
881 
 
882 
static void
883 
gen_run_c (lf *file,
884 
           gen_table *gen)
885 
{
886 
  gen_list *entry;
887 
  lf_printf (file, "#include \"sim-main.h\"\n");
888 
  lf_printf (file, "#include \"engine.h\"\n");
889 
  lf_printf (file, "#include \"idecode.h\"\n");
890 
  lf_printf (file, "#include \"bfd.h\"\n");
891 
  lf_printf (file, "\n");
892 
 
893 
  if (options.gen.multi_sim)
894 
    {
895 
      print_idecode_issue_function_header (file, NULL, is_function_variable, 1);
896 
      lf_printf (file, "\n");
897 
      print_engine_run_function_header (file, NULL, is_function_variable);
898 
      lf_printf (file, "\n");
899 
    }
900 
 
901 
  lf_printf (file, "void\n");
902 
  lf_printf (file, "sim_engine_run (SIM_DESC sd,\n");
903 
  lf_printf (file, "                int next_cpu_nr,\n");
904 
  lf_printf (file, "                int nr_cpus,\n");
905 
  lf_printf (file, "                int siggnal)\n");
906 
  lf_printf (file, "{\n");
907 
  lf_indent (file, +2);
908 
  if (options.gen.multi_sim)
909 
    {
910 
      lf_printf (file, "int mach;\n");
911 
      lf_printf (file, "if (STATE_ARCHITECTURE (sd) == NULL)\n");
912 
      lf_printf (file, "  mach = 0;\n");
913 
      lf_printf (file, "else\n");
914 
      lf_printf (file, "  mach = STATE_ARCHITECTURE (sd)->mach;\n");
915 
      lf_printf (file, "switch (mach)\n");
916 
      lf_printf (file, "  {\n");
917 
      lf_indent (file, +2);
918 
      for (entry = gen->tables; entry != NULL; entry = entry->next)
919 
        {
920 
          if (options.gen.default_model != NULL
921 
              && (strcmp (entry->model->name, options.gen.default_model) == 0
922 
                  || strcmp (entry->model->full_name, options.gen.default_model) == 0))
923 
            lf_printf (file, "default:\n");
924 
          lf_printf (file, "case bfd_mach_%s:\n", entry->model->full_name);
925 
          lf_indent (file, +2);
926 
          print_function_name (file,
927 
                               "issue",
928 
                               NULL, /* format name */
929 
                               NULL, /* NO processor */
930 
                               NULL, /* expanded bits */
931 
                               function_name_prefix_idecode);
932 
          lf_printf (file, " = ");
933 
          print_function_name (file,
934 
                               "issue",
935 
                               NULL, /* format name */
936 
                               entry->model->name,
937 
                               NULL, /* expanded bits */
938 
                               function_name_prefix_idecode);
939 
          lf_printf (file, ";\n");
940 
          print_function_name (file,
941 
                               "run",
942 
                               NULL, /* format name */
943 
                               NULL, /* NO processor */
944 
                               NULL, /* expanded bits */
945 
                               function_name_prefix_engine);
946 
          lf_printf (file, " = ");
947 
          print_function_name (file,
948 
                               "run",
949 
                               NULL, /* format name */
950 
                               entry->model->name,
951 
                               NULL, /* expanded bits */
952 
                               function_name_prefix_engine);
953 
          lf_printf (file, ";\n");
954 
          lf_printf (file, "break;\n");
955 
          lf_indent (file, -2);
956 
        }
957 
      if (options.gen.default_model == NULL)
958 
        {
959 
          lf_printf (file, "default:\n");
960 
          lf_indent (file, +2);
961 
          lf_printf (file, "sim_engine_abort (sd, NULL, NULL_CIA,\n");
962 
          lf_printf (file, "                  \"sim_engine_run - unknown machine\");\n");
963 
          lf_printf (file, "break;\n");
964 
          lf_indent (file, -2);
965 
        }
966 
      lf_indent (file, -2);
967 
      lf_printf (file, "  }\n");
968 
    }
969 
  print_function_name (file,
970 
                       "run",
971 
                       NULL, /* format name */
972 
                       NULL, /* NO processor */
973 
                       NULL, /* expanded bits */
974 
                       function_name_prefix_engine);
975 
  lf_printf (file, " (sd, next_cpu_nr, nr_cpus, siggnal);\n");
976 
  lf_indent (file, -2);
977 
  lf_printf (file, "}\n");
978 
}
979 
 
980 
/****************************************************************/
981 
 
982 
static gen_table *
983 
do_gen (insn_table *isa,
984 
        decode_table *decode_rules)
985 
{
986 
  gen_table *gen;
987 
  if (decode_rules == NULL)
988 
    error (NULL, "Must specify a decode table\n");
989 
  if (isa == NULL)
990 
    error (NULL, "Must specify an instruction table\n");
991 
  if (decode_table_max_word_nr (decode_rules) > 0)
992 
    options.gen.multi_word = decode_table_max_word_nr (decode_rules);
993 
  gen = make_gen_tables (isa, decode_rules);
994 
  gen_tables_expand_insns (gen);
995 
  gen_tables_expand_semantics (gen);
996 
  return gen;
997 
}
998 
 
999 
/****************************************************************/
1000 
 
1001 
igen_options options;
1002 
 
1003 
int
1004 
main (int argc,
1005 
      char **argv,
1006 
      char **envp)
1007 
{
1008 
  cache_entry *cache_rules = NULL;
1009 
  lf_file_references file_references = lf_include_references;
1010 
  decode_table *decode_rules = NULL;
1011 
  insn_table *isa = NULL;
1012 
  gen_table *gen = NULL;
1013 
  char *real_file_name = NULL;
1014 
  int is_header = 0;
1015 
  int ch;
1016 
  lf *standard_out = lf_open ("-", "stdout", lf_omit_references, lf_is_text, "igen");
1017 
 
1018 
  INIT_OPTIONS ();
1019 
 
1020 
  if (argc == 1)
1021 
    {
1022 
      printf ("Usage:\n");
1023 
      printf ("\n");
1024 
      printf ("  igen <config-opts> ... <input-opts>... <output-opts>...\n");
1025 
      printf ("\n");
1026 
      printf ("Config options:\n");
1027 
      printf ("\n");
1028 
      printf ("  -B <bit-size>\n");
1029 
      printf ("\t Set the number of bits in an instruction (depreciated).\n");
1030 
      printf ("\t This option can now be set directly in the instruction table.\n");
1031 
      printf ("\n");
1032 
      printf ("  -D <data-structure>\n");
1033 
      printf ("\t Dump the specified data structure to stdout. Valid structures include:\n");
1034 
      printf ("\t processor-names - list the names of all the processors (models)\n");
1035 
      printf ("\n");
1036 
      printf ("  -F <filter-list>\n");
1037 
      printf ("\t Filter out any instructions with a non-empty flags field that contains\n");
1038 
      printf ("\t a flag not listed in the <filter-list>.\n");
1039 
      printf ("\n");
1040 
      printf ("  -H <high-bit>\n");
1041 
      printf ("\t Set the number of the high (most significant) instruction bit (depreciated).\n");
1042 
      printf ("\t This option can now be set directly in the instruction table.\n");
1043 
      printf ("\n");
1044 
      printf ("  -I <directory>\n");
1045 
      printf ("\t Add <directory> to the list of directories searched when opening a file\n");
1046 
      printf ("\n");
1047 
      printf ("  -M <model-list>\n");
1048 
      printf ("\t Filter out any instructions that do not support at least one of the listed\n");
1049 
      printf ("\t models (An instructions with no model information is considered to support\n");
1050 
      printf ("\t all models.).\n");
1051 
      printf ("\n");
1052 
      printf ("  -N <nr-cpus>\n");
1053 
      printf ("\t Generate a simulator supporting <nr-cpus>\n");
1054 
      printf ("\t Specify `-N 0' to disable generation of the SMP. Specifying `-N 1' will\n");
1055 
      printf ("\t still generate an SMP enabled simulator but will only support one CPU.\n");
1056 
      printf ("\n");
1057 
      printf ("  -T <mechanism>\n");
1058 
      printf ("\t Override the decode mechanism specified by the decode rules\n");
1059 
      printf ("\n");
1060 
      printf ("  -P <prefix>\n");
1061 
      printf ("\t Prepend global names (except itable) with the string <prefix>.\n");
1062 
      printf ("\t Specify -P <module>=<prefix> to set a specific <module>'s prefix.\n");
1063 
      printf ("\n");
1064 
      printf ("  -S <suffix>\n");
1065 
      printf ("\t Replace a global name (suffix) (except itable) with the string <suffix>.\n");
1066 
      printf ("\t Specify -S <module>=<suffix> to change a specific <module>'s name (suffix).\n");
1067 
      printf ("\n");
1068 
      printf ("  -Werror\n");
1069 
      printf ("\t Make warnings errors\n");
1070 
      printf ("  -Wnodiscard\n");
1071 
      printf ("\t Suppress warnings about discarded functions and instructions\n");
1072 
      printf ("  -Wnowidth\n");
1073 
      printf ("\t Suppress warnings about instructions with invalid widths\n");
1074 
      printf ("  -Wnounimplemented\n");
1075 
      printf ("\t Suppress warnings about unimplemented instructions\n");
1076 
      printf ("\n");
1077 
      printf ("  -G [!]<gen-option>\n");
1078 
      printf ("\t Any of the following options:\n");
1079 
      printf ("\n");
1080 
      printf ("\t decode-duplicate       - Override the decode rules, forcing the duplication of\n");
1081 
      printf ("\t                          semantic functions\n");
1082 
      printf ("\t decode-combine         - Combine any duplicated entries within a table\n");
1083 
      printf ("\t decode-zero-reserved   - Override the decode rules, forcing reserved bits to be\n");
1084 
      printf ("\t                          treated as zero.\n");
1085 
      printf ("\t decode-switch-is-goto  - Overfide the padded-switch code type as a goto-switch\n");
1086 
      printf ("\n");
1087 
      printf ("\t gen-conditional-issue  - conditionally issue each instruction\n");
1088 
      printf ("\t gen-delayed-branch     - need both cia and nia passed around\n");
1089 
      printf ("\t gen-direct-access      - use #defines to directly access values\n");
1090 
      printf ("\t gen-zero-r<N>          - arch assumes GPR(<N>) == 0, keep it that way\n");
1091 
      printf ("\t gen-icache[=<N>        - generate an instruction cracking cache of size <N>\n");
1092 
      printf ("\t                          Default size is %d\n", options.gen.icache_size);
1093 
      printf ("\t gen-insn-in-icache     - save original instruction when cracking\n");
1094 
      printf ("\t gen-multi-sim[=MODEL]  - generate multiple simulators - one per model\n");
1095 
      printf ("\t                          If specified MODEL is made the default architecture.\n");
1096 
      printf ("\t                          By default, a single simulator that will\n");
1097 
      printf ("\t                          execute any instruction is generated\n");
1098 
      printf ("\t gen-multi-word         - generate code allowing for multi-word insns\n");
1099 
      printf ("\t gen-semantic-icache    - include semantic code in cracking functions\n");
1100 
      printf ("\t gen-slot-verification  - perform slot verification as part of decode\n");
1101 
      printf ("\t gen-nia-invalid        - NIA defaults to nia_invalid\n");
1102 
      printf ("\t gen-nia-void           - do not compute/return NIA\n");
1103 
      printf ("\n");
1104 
      printf ("\t trace-combine          - report combined entries a rule application\n");
1105 
      printf ("\t trace-entries          - report entries after a rules application\n");
1106 
      printf ("\t trace-rule-rejection   - report each rule as rejected\n");
1107 
      printf ("\t trace-rule-selection   - report each rule as selected\n");
1108 
      printf ("\t trace-insn-insertion   - report each instruction as it is inserted into a decode table\n");
1109 
      printf ("\t trace-rule-expansion   - report each instruction as it is expanded (before insertion into a decode table)\n");
1110 
      printf ("\t trace-all              - enable all trace options\n");
1111 
      printf ("\n");
1112 
      printf ("\t field-widths           - instruction formats specify widths (depreciated)\n");
1113 
      printf ("\t                          By default, an instruction format specifies bit\n");
1114 
      printf ("\t                          positions\n");
1115 
      printf ("\t                          This option can now be set directly in the\n");
1116 
      printf ("\t                          instruction table\n");
1117 
      printf ("\t jumps                  - use jumps instead of function calls\n");
1118 
      printf ("\t omit-line-numbers      - do not include line number information in the output\n");
1119 
      printf ("\n");
1120 
      printf ("Input options:\n");
1121 
      printf ("\n");
1122 
      printf ("  -k <cache-rules> (depreciated)\n");
1123 
      printf ("  -o <decode-rules>\n");
1124 
      printf ("  -i <instruction-table>\n");
1125 
      printf ("\n");
1126 
      printf ("Output options:\n");
1127 
      printf ("\n");
1128 
      printf ("  -x                    Perform expansion (required)\n");
1129 
      printf ("  -n <real-name>        Specify the real name of the next output file\n");
1130 
      printf ("  -h                    Generate the header (.h) file rather than the body (.c)\n");
1131 
      printf ("  -c <output-file>      output icache\n");
1132 
      printf ("  -d <output-file>      output idecode\n");
1133 
      printf ("  -e <output-file>      output engine\n");
1134 
      printf ("  -f <output-file>      output support functions\n");
1135 
      printf ("  -m <output-file>      output model\n");
1136 
      printf ("  -r <output-file>      output multi-sim run\n");
1137 
      printf ("  -s <output-file>      output schematic\n");
1138 
      printf ("  -t <output-file>      output itable\n");
1139 
    }
1140 
 
1141 
  while ((ch = getopt(argc, argv,
1142 
                      "B:D:F:G:H:I:M:N:P:T:W:o:k:i:n:hc:d:e:m:r:s:t:f:x"))
1143 
         != -1)
1144 
    {
1145 
      fprintf (stderr, "  -%c ", ch);
1146 
      if (optarg)
1147 
        fprintf (stderr, "%s ", optarg);
1148 
      fprintf (stderr, "\\\n");
1149 
 
1150 
      switch(ch)
1151 
        {
1152 
 
1153 
        case 'M':
1154 
          filter_parse (&options.model_filter, optarg);
1155 
          break;
1156 
 
1157 
        case 'D':
1158 
          if (strcmp (optarg, "processor-names"))
1159 
            {
1160 
              char *processor;
1161 
              for (processor = filter_next (options.model_filter, "");
1162 
                   processor != NULL;
1163 
                   processor = filter_next (options.model_filter, processor))
1164 
                lf_printf (standard_out, "%s\n", processor);
1165 
            }
1166 
          else
1167 
            error (NULL, "Unknown data structure %s, not dumped\n", optarg);
1168 
          break;
1169 
 
1170 
        case 'F':
1171 
          filter_parse (&options.flags_filter, optarg);
1172 
          break;
1173 
 
1174 
        case 'I':
1175 
          {
1176 
            table_include **dir = &options.include;
1177 
            while ((*dir) != NULL)
1178 
              dir = &(*dir)->next;
1179 
            (*dir) = ZALLOC (table_include);
1180 
            (*dir)->dir = strdup (optarg);
1181 
          }
1182 
          break;
1183 
 
1184 
        case 'B':
1185 
          options.insn_bit_size = a2i (optarg);
1186 
          if (options.insn_bit_size <= 0
1187 
              || options.insn_bit_size > max_insn_bit_size)
1188 
            {
1189 
              error (NULL, "Instruction bitsize must be in range 1..%d\n",
1190 
                     max_insn_bit_size);
1191 
            }
1192 
          if (options.hi_bit_nr != options.insn_bit_size - 1
1193 
              && options.hi_bit_nr != 0)
1194 
            {
1195 
              error (NULL, "Conflict betweem hi-bit-nr and insn-bit-size\n");
1196 
            }
1197 
          break;
1198 
 
1199 
        case 'H':
1200 
          options.hi_bit_nr = a2i (optarg);
1201 
          if (options.hi_bit_nr != options.insn_bit_size - 1
1202 
              && options.hi_bit_nr != 0)
1203 
            {
1204 
              error (NULL, "Conflict between hi-bit-nr and insn-bit-size\n");
1205 
            }
1206 
          break;
1207 
 
1208 
        case 'N':
1209 
          options.gen.smp = a2i (optarg);
1210 
          break;
1211 
 
1212 
        case 'P':
1213 
        case 'S':
1214 
          {
1215 
            igen_module *names;
1216 
            igen_name *name;
1217 
            char *chp;
1218 
            chp = strchr (optarg, '=');
1219 
            if (chp == NULL)
1220 
              {
1221 
                names = &options.module.global;
1222 
                chp = optarg;
1223 
              }
1224 
            else
1225 
              {
1226 
                chp = chp + 1; /* skip `=' */
1227 
                names = NULL;
1228 
                if (strncmp (optarg, "global=", chp - optarg) == 0)
1229 
                  {
1230 
                    names = &options.module.global;
1231 
                  }
1232 
                if (strncmp (optarg, "engine=", chp - optarg) == 0)
1233 
                  {
1234 
                    names = &options.module.engine;
1235 
                  }
1236 
                if (strncmp (optarg, "icache=", chp - optarg) == 0)
1237 
                  {
1238 
                    names = &options.module.icache;
1239 
                  }
1240 
                if (strncmp (optarg, "idecode=", chp - optarg) == 0)
1241 
                  {
1242 
                    names = &options.module.idecode;
1243 
                  }
1244 
                if (strncmp (optarg, "itable=", chp - optarg) == 0)
1245 
                  {
1246 
                    names = &options.module.itable;
1247 
                  }
1248 
                if (strncmp (optarg, "semantics=", chp - optarg) == 0)
1249 
                  {
1250 
                    names = &options.module.semantics;
1251 
                  }
1252 
                if (strncmp (optarg, "support=", chp - optarg) == 0)
1253 
                  {
1254 
                    names = &options.module.support;
1255 
                  }
1256 
                if (names == NULL)
1257 
                  {
1258 
                    error (NULL, "Prefix `%s' unreconized\n", optarg);
1259 
                  }
1260 
              }
1261 
            switch (ch)
1262 
              {
1263 
              case 'P':
1264 
                name = &names->prefix;
1265 
                break;
1266 
              case 'S':
1267 
                name = &names->suffix;
1268 
                break;
1269 
              }
1270 
            name->u = strdup (chp);
1271 
            name->l = strdup (chp);
1272 
            chp = name->u;
1273 
            while (*chp) {
1274 
              if (islower(*chp))
1275 
                *chp = toupper(*chp);
1276 
              chp++;
1277 
            }
1278 
            if (name == &options.module.global.prefix)
1279 
              {
1280 
                options.module.engine.prefix = options.module.global.prefix;
1281 
                options.module.icache.prefix = options.module.global.prefix;
1282 
                options.module.idecode.prefix = options.module.global.prefix;
1283 
                /* options.module.itable.prefix = options.module.global.prefix; */
1284 
                options.module.semantics.prefix = options.module.global.prefix;
1285 
                options.module.support.prefix = options.module.global.prefix;
1286 
              }
1287 
            if (name == &options.module.global.suffix)
1288 
              {
1289 
                options.module.engine.suffix = options.module.global.suffix;
1290 
                options.module.icache.suffix = options.module.global.suffix;
1291 
                options.module.idecode.suffix = options.module.global.suffix;
1292 
                /* options.module.itable.suffix = options.module.global.suffix; */
1293 
                options.module.semantics.suffix = options.module.global.suffix;
1294 
                options.module.support.suffix = options.module.global.suffix;
1295 
              }
1296 
            break;
1297 
          }
1298 
 
1299 
        case 'W':
1300 
          {
1301 
            if (strcmp (optarg, "error") == 0)
1302 
              options.warning = error;
1303 
            else if (strcmp (optarg, "nodiscard") == 0)
1304 
              options.warn.discard = 0;
1305 
            else if (strcmp (optarg, "discard") == 0)
1306 
              options.warn.discard = 1;
1307 
            else if (strcmp (optarg, "nowidth") == 0)
1308 
              options.warn.width = 0;
1309 
            else if (strcmp (optarg, "width") == 0)
1310 
              options.warn.width = 1;
1311 
            else if (strcmp (optarg, "nounimplemented") == 0)
1312 
              options.warn.unimplemented = 0;
1313 
            else if (strcmp (optarg, "unimplemented") == 0)
1314 
              options.warn.unimplemented = 1;
1315 
            else
1316 
              error (NULL, "Unknown -W argument `%s'\n", optarg);
1317 
            break;
1318 
          }
1319 
 
1320 
 
1321 
        case 'G':
1322 
          {
1323 
            int enable_p;
1324 
            char *argp;
1325 
            if (strncmp (optarg, "no-", strlen ("no-")) == 0)
1326 
              {
1327 
                argp = optarg + strlen ("no-");
1328 
                enable_p = 0;
1329 
              }
1330 
            else if (strncmp (optarg, "!", strlen ("!")) == 0)
1331 
              {
1332 
                argp = optarg + strlen ("no-");
1333 
                enable_p = 0;
1334 
              }
1335 
            else
1336 
              {
1337 
                argp = optarg;
1338 
                enable_p = 1;
1339 
              }
1340 
            if (strcmp (argp, "decode-duplicate") == 0)
1341 
              {
1342 
                options.decode.duplicate = enable_p;
1343 
              }
1344 
            else if (strcmp (argp, "decode-combine") == 0)
1345 
              {
1346 
                options.decode.combine = enable_p;
1347 
              }
1348 
            else if (strcmp (argp, "decode-zero-reserved") == 0)
1349 
              {
1350 
                options.decode.zero_reserved = enable_p;
1351 
              }
1352 
 
1353 
            else if (strcmp (argp, "gen-conditional-issue") == 0)
1354 
              {
1355 
                options.gen.conditional_issue = enable_p;
1356 
              }
1357 
            else if (strcmp (argp, "conditional-issue") == 0)
1358 
              {
1359 
                options.gen.conditional_issue = enable_p;
1360 
                options.warning (NULL, "Option conditional-issue replaced by gen-conditional-issue\n");
1361 
              }
1362 
            else if (strcmp (argp, "gen-delayed-branch") == 0)
1363 
              {
1364 
                options.gen.delayed_branch = enable_p;
1365 
              }
1366 
            else if (strcmp (argp, "delayed-branch") == 0)
1367 
              {
1368 
                options.gen.delayed_branch = enable_p;
1369 
                options.warning (NULL, "Option delayed-branch replaced by gen-delayed-branch\n");
1370 
              }
1371 
            else if (strcmp (argp, "gen-direct-access") == 0)
1372 
              {
1373 
                options.gen.direct_access = enable_p;
1374 
              }
1375 
            else if (strcmp (argp, "direct-access") == 0)
1376 
              {
1377 
                options.gen.direct_access = enable_p;
1378 
                options.warning (NULL, "Option direct-access replaced by gen-direct-access\n");
1379 
              }
1380 
            else if (strncmp (argp, "gen-zero-r", strlen ("gen-zero-r")) == 0)
1381 
              {
1382 
                options.gen.zero_reg = enable_p;
1383 
                options.gen.zero_reg_nr = atoi (argp + strlen ("gen-zero-r"));
1384 
              }
1385 
            else if (strncmp (argp, "zero-r", strlen ("zero-r")) == 0)
1386 
              {
1387 
                options.gen.zero_reg = enable_p;
1388 
                options.gen.zero_reg_nr = atoi (argp + strlen ("zero-r"));
1389 
                options.warning (NULL, "Option zero-r<N> replaced by gen-zero-r<N>\n");
1390 
              }
1391 
            else if (strncmp (argp, "gen-icache", strlen ("gen-icache")) == 0)
1392 
              {
1393 
                switch (argp[strlen ("gen-icache")])
1394 
                  {
1395 
                  case '=':
1396 
                    options.gen.icache_size = atoi (argp + strlen ("gen-icache") + 1);
1397 
                    options.gen.icache = enable_p;
1398 
                    break;
1399 
                  case '\0':
1400 
                    options.gen.icache = enable_p;
1401 
                    break;
1402 
                  default:
1403 
                    error (NULL, "Expecting -Ggen-icache or -Ggen-icache=<N>\n");
1404 
                  }
1405 
              }
1406 
            else if (strcmp (argp, "gen-insn-in-icache") == 0)
1407 
              {
1408 
                options.gen.insn_in_icache = enable_p;
1409 
              }
1410 
            else if (strncmp (argp, "gen-multi-sim", strlen ("gen-multi-sim")) == 0)
1411 
              {
1412 
                char *arg = &argp[strlen ("gen-multi-sim")];
1413 
                switch (arg[0])
1414 
                  {
1415 
                  case '=':
1416 
                    options.gen.multi_sim = enable_p;
1417 
                    options.gen.default_model = arg + 1;
1418 
                    if (! filter_is_member (options.model_filter, options.gen.default_model))
1419 
                      error (NULL, "multi-sim model %s unknown\n", options.gen.default_model);
1420 
                    break;
1421 
                  case '\0':
1422 
                    options.gen.multi_sim = enable_p;
1423 
                    options.gen.default_model = NULL;
1424 
                    break;
1425 
                  default:
1426 
                    error (NULL, "Expecting -Ggen-multi-sim or -Ggen-multi-sim=<MODEL>\n");
1427 
                    break;
1428 
                  }
1429 
              }
1430 
            else if (strcmp (argp, "gen-multi-word") == 0)
1431 
              {
1432 
                options.gen.multi_word = enable_p;
1433 
              }
1434 
            else if (strcmp (argp, "gen-semantic-icache") == 0)
1435 
              {
1436 
                options.gen.semantic_icache = enable_p;
1437 
              }
1438 
            else if (strcmp (argp, "gen-slot-verification") == 0)
1439 
              {
1440 
                options.gen.slot_verification = enable_p;
1441 
              }
1442 
            else if (strcmp (argp, "verify-slot") == 0)
1443 
              {
1444 
                options.gen.slot_verification = enable_p;
1445 
                options.warning (NULL, "Option verify-slot replaced by gen-slot-verification\n");
1446 
              }
1447 
            else if (strcmp (argp, "gen-nia-invalid") == 0)
1448 
              {
1449 
                options.gen.nia = nia_is_invalid;
1450 
              }
1451 
            else if (strcmp (argp, "default-nia-minus-one") == 0)
1452 
              {
1453 
                options.gen.nia = nia_is_invalid;
1454 
                options.warning (NULL, "Option default-nia-minus-one replaced by gen-nia-invalid\n");
1455 
              }
1456 
            else if (strcmp (argp, "gen-nia-void") == 0)
1457 
              {
1458 
                options.gen.nia = nia_is_void;
1459 
              }
1460 
            else if (strcmp (argp, "trace-all") == 0)
1461 
              {
1462 
                memset (&options.trace, enable_p, sizeof (options.trace));
1463 
              }
1464 
            else if (strcmp (argp, "trace-combine") == 0)
1465 
              {
1466 
                options.trace.combine = enable_p;
1467 
              }
1468 
            else if (strcmp (argp, "trace-entries") == 0)
1469 
              {
1470 
                options.trace.entries = enable_p;
1471 
              }
1472 
            else if (strcmp (argp, "trace-rule-rejection") == 0)
1473 
              {
1474 
                options.trace.rule_rejection = enable_p;
1475 
              }
1476 
            else if (strcmp (argp, "trace-rule-selection") == 0)
1477 
              {
1478 
                options.trace.rule_selection = enable_p;
1479 
              }
1480 
            else if (strcmp (argp, "trace-insn-insertion") == 0)
1481 
              {
1482 
                options.trace.insn_insertion = enable_p;
1483 
              }
1484 
            else if (strcmp (argp, "trace-insn-expansion") == 0)
1485 
              {
1486 
                options.trace.insn_expansion = enable_p;
1487 
              }
1488 
            else if (strcmp (argp, "jumps") == 0)
1489 
              {
1490 
                options.gen.code = generate_jumps;
1491 
              }
1492 
            else if (strcmp (argp, "field-widths") == 0)
1493 
              {
1494 
                options.insn_specifying_widths = enable_p;
1495 
              }
1496 
            else if (strcmp (argp, "omit-line-numbers") == 0)
1497 
              {
1498 
                file_references = lf_omit_references;
1499 
              }
1500 
            else
1501 
              {
1502 
                error (NULL, "Unknown option %s\n", optarg);
1503 
              }
1504 
            break;
1505 
          }
1506 
 
1507 
        case 'i':
1508 
          isa = load_insn_table (optarg, cache_rules);
1509 
          if (isa->illegal_insn == NULL)
1510 
            error (NULL, "illegal-instruction missing from insn table\n");
1511 
          break;
1512 
 
1513 
        case 'x':
1514 
          gen = do_gen (isa, decode_rules);
1515 
          break;
1516 
 
1517 
        case 'o':
1518 
          decode_rules = load_decode_table (optarg);
1519 
          break;
1520 
 
1521 
        case 'k':
1522 
          if (isa != NULL)
1523 
            error (NULL, "Cache file must appear before the insn file\n");
1524 
          cache_rules = load_cache_table (optarg);
1525 
          break;
1526 
 
1527 
        case 'n':
1528 
          real_file_name = strdup(optarg);
1529 
          break;
1530 
 
1531 
        case 'h':
1532 
          is_header = 1;
1533 
          break;
1534 
 
1535 
        case 'c':
1536 
        case 'd':
1537 
        case 'e':
1538 
        case 'f':
1539 
        case 'm':
1540 
        case 'r':
1541 
        case 's':
1542 
        case 't':
1543 
          {
1544 
            lf *file = lf_open(optarg, real_file_name, file_references,
1545 
                               (is_header ? lf_is_h : lf_is_c),
1546 
                               argv[0]);
1547 
            if (gen == NULL && ch != 't' && ch != 'm' && ch != 'f')
1548 
              {
1549 
                options.warning (NULL, "Explicitly generate tables with -x option\n");
1550 
                gen = do_gen (isa, decode_rules);
1551 
              }
1552 
            lf_print__file_start(file);
1553 
            switch (ch)
1554 
              {
1555 
              case 'm':
1556 
                if (is_header)
1557 
                  gen_model_h (file, isa);
1558 
                else
1559 
                  gen_model_c (file, isa);
1560 
                break;
1561 
              case 't':
1562 
                if (is_header)
1563 
                  gen_itable_h (file, isa);
1564 
                else
1565 
                  gen_itable_c (file, isa);
1566 
                break;
1567 
              case 'f':
1568 
                if (is_header)
1569 
                  gen_support_h (file, isa);
1570 
                else
1571 
                  gen_support_c (file, isa);
1572 
                break;
1573 
              case 'r':
1574 
                if (is_header)
1575 
                  options.warning (NULL, "-hr option ignored\n");
1576 
                else
1577 
                  gen_run_c (file, gen);
1578 
                break;
1579 
              case 's':
1580 
                if(is_header)
1581 
                  gen_semantics_h (file, gen->semantics, isa->max_nr_words);
1582 
                else
1583 
                  gen_semantics_c (file, gen->semantics, isa->caches);
1584 
                break;
1585 
              case 'd':
1586 
                if (is_header)
1587 
                  gen_idecode_h (file, gen, isa, cache_rules);
1588 
                else
1589 
                  gen_idecode_c (file, gen, isa, cache_rules);
1590 
                break;
1591 
              case 'e':
1592 
                if (is_header)
1593 
                  gen_engine_h (file, gen, isa, cache_rules);
1594 
                else
1595 
                  gen_engine_c (file, gen, isa, cache_rules);
1596 
                break;
1597 
              case 'c':
1598 
                if (is_header)
1599 
                  gen_icache_h (file,
1600 
                                gen->semantics,
1601 
                                isa->functions,
1602 
                                isa->max_nr_words);
1603 
                else
1604 
                  gen_icache_c (file,
1605 
                                gen->semantics,
1606 
                                isa->functions,
1607 
                                cache_rules);
1608 
                break;
1609 
              }
1610 
            lf_print__file_finish(file);
1611 
            lf_close(file);
1612 
            is_header = 0;
1613 
          }
1614 
        real_file_name = NULL;
1615 
        break;
1616 
        default:
1617 
          ERROR ("Bad switch");
1618 
        }
1619 
    }
1620 
  return (0);
1621 
}

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