OpenCores
URL https://opencores.org/ocsvn/scarts/scarts/trunk

Subversion Repositories scarts

[/] [scarts/] [trunk/] [toolchain/] [scarts-gdb/] [gdb-6.8/] [sim/] [igen/] [igen.c] - Blame information for rev 26

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 26 jlechner 
/* The IGEN simulator generator for GDB, the GNU Debugger.
2 
 
3 
   Copyright 2002, 2007, 2008 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 3 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, see <http://www.gnu.org/licenses/>.  */
21 
 
22 
 
23 
 
24 
#include <getopt.h>
25 
 
26 
#include "misc.h"
27 
#include "lf.h"
28 
#include "table.h"
29 
#include "config.h"
30 
#include "filter.h"
31 
 
32 
#include "igen.h"
33 
 
34 
#include "ld-insn.h"
35 
#include "ld-decode.h"
36 
#include "ld-cache.h"
37 
 
38 
#include "gen.h"
39 
 
40 
#include "gen-model.h"
41 
#include "gen-icache.h"
42 
#include "gen-itable.h"
43 
#include "gen-idecode.h"
44 
#include "gen-semantics.h"
45 
#include "gen-engine.h"
46 
#include "gen-support.h"
47 
#include "gen-engine.h"
48 
 
49 
 
50 
/****************************************************************/
51 
 
52 
 
53 
/* Semantic functions */
54 
 
55 
int
56 
print_semantic_function_formal (lf *file, 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, word_nr);
75 
        }
76 
      nr += lf_printf (file, "%sinstruction_address cia",
77 
                       options.module.global.prefix.l);
78 
    }
79 
  else
80 
    {
81 
      nr += lf_printf (file, "SIM_DESC sd,\n");
82 
      for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
83 
        {
84 
          nr += lf_printf (file, "%sinstruction_word instruction_%d,\n",
85 
                           options.module.global.prefix.l, word_nr);
86 
        }
87 
      nr += lf_printf (file, "%sinstruction_address cia",
88 
                       options.module.global.prefix.l);
89 
    }
90 
  return nr;
91 
}
92 
 
93 
int
94 
print_semantic_function_actual (lf *file, int nr_prefetched_words)
95 
{
96 
  int nr = 0;
97 
  int word_nr;
98 
  if (options.gen.icache || nr_prefetched_words < 0)
99 
    {
100 
      nr += lf_printf (file, "sd, cache_entry, cia");
101 
    }
102 
  else
103 
    {
104 
      if (options.gen.smp)
105 
        nr += lf_printf (file, "cpu");
106 
      else
107 
        nr += lf_printf (file, "sd");
108 
      for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
109 
        nr += lf_printf (file, ", instruction_%d", word_nr);
110 
      nr += lf_printf (file, ", cia");
111 
    }
112 
  return nr;
113 
}
114 
 
115 
int
116 
print_semantic_function_type (lf *file)
117 
{
118 
  int nr = 0;
119 
  nr += lf_printf (file, "%sinstruction_address",
120 
                   options.module.global.prefix.l);
121 
  return nr;
122 
}
123 
 
124 
 
125 
/* Idecode functions */
126 
 
127 
int
128 
print_icache_function_formal (lf *file, int nr_prefetched_words)
129 
{
130 
  int nr = 0;
131 
  int word_nr;
132 
  if (options.gen.smp)
133 
    nr += lf_printf (file, "sim_cpu *cpu,\n");
134 
  else
135 
    nr += lf_printf (file, "SIM_DESC sd,\n");
136 
  for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
137 
    nr += lf_printf (file, " %sinstruction_word instruction_%d,\n",
138 
                     options.module.global.prefix.l, word_nr);
139 
  nr += lf_printf (file, " %sinstruction_address cia,\n",
140 
                   options.module.global.prefix.l);
141 
  nr += lf_printf (file, " %sidecode_cache *cache_entry",
142 
                   options.module.global.prefix.l);
143 
  return nr;
144 
}
145 
 
146 
int
147 
print_icache_function_actual (lf *file, int nr_prefetched_words)
148 
{
149 
  int nr = 0;
150 
  int word_nr;
151 
  if (options.gen.smp)
152 
    nr += lf_printf (file, "cpu");
153 
  else
154 
    nr += lf_printf (file, "sd");
155 
  for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
156 
    nr += lf_printf (file, ", instruction_%d", word_nr);
157 
  nr += lf_printf (file, ", cia, cache_entry");
158 
  return nr;
159 
}
160 
 
161 
int
162 
print_icache_function_type (lf *file)
163 
{
164 
  int nr;
165 
  if (options.gen.semantic_icache)
166 
    {
167 
      nr = print_semantic_function_type (file);
168 
    }
169 
  else
170 
    {
171 
      nr = lf_printf (file, "%sidecode_semantic *",
172 
                      options.module.global.prefix.l);
173 
    }
174 
  return nr;
175 
}
176 
 
177 
 
178 
/* Function names */
179 
 
180 
static int
181 
print_opcode_bits (lf *file, opcode_bits *bits)
182 
{
183 
  int nr = 0;
184 
  if (bits == NULL)
185 
    return nr;
186 
  nr += lf_putchr (file, '_');
187 
  nr += lf_putstr (file, bits->field->val_string);
188 
  if (bits->opcode->is_boolean && bits->value == 0)
189 
    nr += lf_putint (file, bits->opcode->boolean_constant);
190 
  else if (!bits->opcode->is_boolean)
191 
    {
192 
      if (bits->opcode->last < bits->field->last)
193 
        nr +=
194 
          lf_putint (file,
195 
                     bits->value << (bits->field->last - bits->opcode->last));
196 
      else
197 
        nr += lf_putint (file, bits->value);
198 
    }
199 
  nr += print_opcode_bits (file, bits->next);
200 
  return nr;
201 
}
202 
 
203 
static int
204 
print_c_name (lf *file, const char *name)
205 
{
206 
  int nr = 0;
207 
  const char *pos;
208 
  for (pos = name; *pos != '\0'; pos++)
209 
    {
210 
      switch (*pos)
211 
        {
212 
        case '/':
213 
        case '-':
214 
          break;
215 
        case ' ':
216 
        case '.':
217 
          nr += lf_putchr (file, '_');
218 
          break;
219 
        default:
220 
          nr += lf_putchr (file, *pos);
221 
          break;
222 
        }
223 
    }
224 
  return nr;
225 
}
226 
 
227 
extern int
228 
print_function_name (lf *file,
229 
                     const char *basename,
230 
                     const char *format_name,
231 
                     const char *model_name,
232 
                     opcode_bits *expanded_bits,
233 
                     lf_function_name_prefixes prefix)
234 
{
235 
  int nr = 0;
236 
  /* the prefix */
237 
  switch (prefix)
238 
    {
239 
    case function_name_prefix_semantics:
240 
      nr += lf_printf (file, "%s", options.module.semantics.prefix.l);
241 
      nr += lf_printf (file, "semantic_");
242 
      break;
243 
    case function_name_prefix_idecode:
244 
      nr += lf_printf (file, "%s", options.module.idecode.prefix.l);
245 
      nr += lf_printf (file, "idecode_");
246 
      break;
247 
    case function_name_prefix_itable:
248 
      nr += lf_printf (file, "%sitable_", options.module.itable.prefix.l);
249 
      break;
250 
    case function_name_prefix_icache:
251 
      nr += lf_printf (file, "%s", options.module.icache.prefix.l);
252 
      nr += lf_printf (file, "icache_");
253 
      break;
254 
    case function_name_prefix_engine:
255 
      nr += lf_printf (file, "%s", options.module.engine.prefix.l);
256 
      nr += lf_printf (file, "engine_");
257 
    default:
258 
      break;
259 
    }
260 
 
261 
  if (model_name != NULL)
262 
    {
263 
      nr += print_c_name (file, model_name);
264 
      nr += lf_printf (file, "_");
265 
    }
266 
 
267 
  /* the function name */
268 
  nr += print_c_name (file, basename);
269 
 
270 
  /* the format name if available */
271 
  if (format_name != NULL)
272 
    {
273 
      nr += lf_printf (file, "_");
274 
      nr += print_c_name (file, format_name);
275 
    }
276 
 
277 
  /* the suffix */
278 
  nr += print_opcode_bits (file, expanded_bits);
279 
 
280 
  return nr;
281 
}
282 
 
283 
 
284 
void
285 
print_my_defines (lf *file,
286 
                  const char *basename,
287 
                  const char *format_name, opcode_bits *expanded_bits)
288 
{
289 
  /* #define MY_INDEX xxxxx */
290 
  lf_indent_suppress (file);
291 
  lf_printf (file, "#undef MY_INDEX\n");
292 
  lf_indent_suppress (file);
293 
  lf_printf (file, "#define MY_INDEX ");
294 
  print_function_name (file,
295 
                       basename, format_name, NULL,
296 
                       NULL, function_name_prefix_itable);
297 
  lf_printf (file, "\n");
298 
  /* #define MY_PREFIX xxxxxx */
299 
  lf_indent_suppress (file);
300 
  lf_printf (file, "#undef ");
301 
  print_function_name (file,
302 
                       basename, format_name, NULL,
303 
                       expanded_bits, function_name_prefix_none);
304 
  lf_printf (file, "\n");
305 
  lf_indent_suppress (file);
306 
  lf_printf (file, "#undef MY_PREFIX\n");
307 
  lf_indent_suppress (file);
308 
  lf_printf (file, "#define MY_PREFIX ");
309 
  print_function_name (file,
310 
                       basename, format_name, NULL,
311 
                       expanded_bits, function_name_prefix_none);
312 
  lf_printf (file, "\n");
313 
  /* #define MY_NAME xxxxxx */
314 
  lf_indent_suppress (file);
315 
  lf_indent_suppress (file);
316 
  lf_printf (file, "#undef MY_NAME\n");
317 
  lf_indent_suppress (file);
318 
  lf_printf (file, "#define MY_NAME \"");
319 
  print_function_name (file,
320 
                       basename, format_name, NULL,
321 
                       expanded_bits, function_name_prefix_none);
322 
  lf_printf (file, "\"\n");
323 
}
324 
 
325 
 
326 
static int
327 
print_itrace_prefix (lf *file)
328 
{
329 
  const char *prefix = "trace_prefix (";
330 
  int indent = strlen (prefix);
331 
  lf_printf (file, "%sSD, CPU, cia, CIA, TRACE_LINENUM_P (CPU), \\\n",
332 
             prefix);
333 
  lf_indent (file, +indent);
334 
  lf_printf (file, "%sitable[MY_INDEX].file, \\\n",
335 
             options.module.itable.prefix.l);
336 
  lf_printf (file, "%sitable[MY_INDEX].line_nr, \\\n",
337 
             options.module.itable.prefix.l);
338 
  lf_printf (file, "\"");
339 
  return indent;
340 
}
341 
 
342 
 
343 
static void
344 
print_itrace_format (lf *file, insn_mnemonic_entry *assembler)
345 
{
346 
  /* pass=1 is fmt string; pass=2 is arguments */
347 
  int pass;
348 
  /* print the format string */
349 
  for (pass = 1; pass <= 2; pass++)
350 
    {
351 
      const char *chp = assembler->format;
352 
      chp++;                    /* skip the leading quote */
353 
      /* write out the format/args */
354 
      while (*chp != '\0')
355 
        {
356 
          if (chp[0] == '\\' && (chp[1] == '<' || chp[1] == '>'))
357 
            {
358 
              if (pass == 1)
359 
                lf_putchr (file, chp[1]);
360 
              chp += 2;
361 
            }
362 
          else if (chp[0] == '<' || chp[0] == '%')
363 
            {
364 
              /* parse [ "%" ... ] "<" [ func "#" ] param ">" */
365 
              const char *fmt;
366 
              const char *func;
367 
              int strlen_func;
368 
              const char *param;
369 
              int strlen_param;
370 
              /* the "%" ... "<" format */
371 
              fmt = chp;
372 
              while (chp[0] != '<' && chp[0] != '\0')
373 
                chp++;
374 
              if (chp[0] != '<')
375 
                error (assembler->line, "Missing `<' after `%%'\n");
376 
              chp++;
377 
              /* [ "func" # ] OR "param" */
378 
              func = chp;
379 
              param = chp;
380 
              while (chp[0] != '>' && chp[0] != '#' && chp[0] != '\0')
381 
                chp++;
382 
              strlen_func = chp - func;
383 
              if (chp[0] == '#')
384 
                {
385 
                  chp++;
386 
                  param = chp;
387 
                  while (chp[0] != '>' && chp[0] != '\0')
388 
                    chp++;
389 
                }
390 
              strlen_param = chp - param;
391 
              if (chp[0] != '>')
392 
                error (assembler->line,
393 
                       "Missing closing `>' in assembler string\n");
394 
              chp++;
395 
              /* now process it */
396 
              if (pass == 2)
397 
                lf_printf (file, ", \\\n");
398 
              if (strncmp (fmt, "<", 1) == 0)
399 
                /* implicit long int format */
400 
                {
401 
                  if (pass == 1)
402 
                    lf_printf (file, "%%ld");
403 
                  else
404 
                    {
405 
                      lf_printf (file, "(long) ");
406 
                      lf_write (file, param, strlen_param);
407 
                    }
408 
                }
409 
              else if (strncmp (fmt, "%<", 2) == 0)
410 
                /* explicit format */
411 
                {
412 
                  if (pass == 1)
413 
                    lf_printf (file, "%%");
414 
                  else
415 
                    lf_write (file, param, strlen_param);
416 
                }
417 
              else if (strncmp (fmt, "%s<", 3) == 0)
418 
                /* string format */
419 
                {
420 
                  if (pass == 1)
421 
                    lf_printf (file, "%%s");
422 
                  else
423 
                    {
424 
                      lf_printf (file, "%sstr_",
425 
                                 options.module.global.prefix.l);
426 
                      lf_write (file, func, strlen_func);
427 
                      lf_printf (file, " (SD_, ");
428 
                      lf_write (file, param, strlen_param);
429 
                      lf_printf (file, ")");
430 
                    }
431 
                }
432 
              else if (strncmp (fmt, "%lx<", 4) == 0)
433 
                /* simple hex */
434 
                {
435 
                  if (pass == 1)
436 
                    lf_printf (file, "%%lx");
437 
                  else
438 
                    {
439 
                      lf_printf (file, "(unsigned long) ");
440 
                      lf_write (file, param, strlen_param);
441 
                    }
442 
                }
443 
              else if (strncmp (fmt, "%#lx<", 5) == 0)
444 
                /* simple hex with 0x prefix */
445 
                {
446 
                  if (pass == 1)
447 
                    lf_printf (file, "%%#lx");
448 
                  else
449 
                    {
450 
                      lf_printf (file, "(unsigned long) ");
451 
                      lf_write (file, param, strlen_param);
452 
                    }
453 
                }
454 
              else if (strncmp (fmt, "%08lx<", 6) == 0)
455 
                /* simple hex */
456 
                {
457 
                  if (pass == 1)
458 
                    lf_printf (file, "%%08lx");
459 
                  else
460 
                    {
461 
                      lf_printf (file, "(unsigned long) ");
462 
                      lf_write (file, param, strlen_param);
463 
                    }
464 
                }
465 
              else
466 
                error (assembler->line, "Unknown assembler string format\n");
467 
            }
468 
          else
469 
            {
470 
              if (pass == 1)
471 
                lf_putchr (file, chp[0]);
472 
              chp += 1;
473 
            }
474 
        }
475 
    }
476 
  lf_printf (file, ");\n");
477 
}
478 
 
479 
 
480 
void
481 
print_itrace (lf *file, insn_entry * insn, int idecode)
482 
{
483 
  /* NB: Here we escape each EOLN. This is so that the the compiler
484 
     treats a trace function call as a single line.  Consequently any
485 
     errors in the line are refered back to the same igen assembler
486 
     source line */
487 
  const char *phase = (idecode) ? "DECODE" : "INSN";
488 
  lf_printf (file, "\n");
489 
  lf_indent_suppress (file);
490 
  lf_printf (file, "#if defined (WITH_TRACE)\n");
491 
  lf_printf (file, "/* generate a trace prefix if any tracing enabled */\n");
492 
  lf_printf (file, "if (TRACE_ANY_P (CPU))\n");
493 
  lf_printf (file, "  {\n");
494 
  lf_indent (file, +4);
495 
  {
496 
    if (insn->mnemonics != NULL)
497 
      {
498 
        insn_mnemonic_entry *assembler = insn->mnemonics;
499 
        int is_first = 1;
500 
        do
501 
          {
502 
            if (assembler->condition != NULL)
503 
              {
504 
                int indent;
505 
                lf_printf (file, "%sif (%s)\n",
506 
                           is_first ? "" : "else ", assembler->condition);
507 
                lf_indent (file, +2);
508 
                lf_print__line_ref (file, assembler->line);
509 
                indent = print_itrace_prefix (file);
510 
                print_itrace_format (file, assembler);
511 
                lf_print__internal_ref (file);
512 
                lf_indent (file, -indent);
513 
                lf_indent (file, -2);
514 
                if (assembler->next == NULL)
515 
                  error (assembler->line,
516 
                         "Missing final unconditional assembler\n");
517 
              }
518 
            else
519 
              {
520 
                int indent;
521 
                if (!is_first)
522 
                  {
523 
                    lf_printf (file, "else\n");
524 
                    lf_indent (file, +2);
525 
                  }
526 
                lf_print__line_ref (file, assembler->line);
527 
                indent = print_itrace_prefix (file);
528 
                print_itrace_format (file, assembler);
529 
                lf_print__internal_ref (file);
530 
                lf_indent (file, -indent);
531 
                if (!is_first)
532 
                  lf_indent (file, -2);
533 
                if (assembler->next != NULL)
534 
                  error (assembler->line,
535 
                         "Unconditional assembler is not last\n");
536 
              }
537 
            is_first = 0;
538 
            assembler = assembler->next;
539 
          }
540 
        while (assembler != NULL);
541 
      }
542 
    else
543 
      {
544 
        int indent;
545 
        lf_indent (file, +2);
546 
        lf_print__line_ref (file, insn->line);
547 
        indent = print_itrace_prefix (file);
548 
        lf_printf (file, "%%s\", \\\n");
549 
        lf_printf (file, "itable[MY_INDEX].name);\n");
550 
        lf_print__internal_ref (file);
551 
        lf_indent (file, -indent);
552 
        lf_indent (file, -2);
553 
      }
554 
    lf_printf (file, "/* trace the instruction execution if enabled */\n");
555 
    lf_printf (file, "if (TRACE_%s_P (CPU))\n", phase);
556 
    lf_printf (file,
557 
               "  trace_generic (SD, CPU, TRACE_%s_IDX, \" %%s\", itable[MY_INDEX].name);\n",
558 
               phase);
559 
  }
560 
  lf_indent (file, -4);
561 
  lf_printf (file, "  }\n");
562 
  lf_indent_suppress (file);
563 
  lf_printf (file, "#endif\n");
564 
}
565 
 
566 
 
567 
void
568 
print_sim_engine_abort (lf *file, const char *message)
569 
{
570 
  lf_printf (file, "sim_engine_abort (SD, CPU, cia, ");
571 
  lf_printf (file, "\"%s\"", message);
572 
  lf_printf (file, ");\n");
573 
}
574 
 
575 
 
576 
void
577 
print_include (lf *file, igen_module module)
578 
{
579 
  lf_printf (file, "#include \"%s%s.h\"\n", module.prefix.l, module.suffix.l);
580 
}
581 
 
582 
void
583 
print_include_inline (lf *file, igen_module module)
584 
{
585 
  lf_printf (file, "#if C_REVEALS_MODULE_P (%s_INLINE)\n", module.suffix.u);
586 
  lf_printf (file, "#include \"%s%s.c\"\n", module.prefix.l, module.suffix.l);
587 
  lf_printf (file, "#else\n");
588 
  print_include (file, module);
589 
  lf_printf (file, "#endif\n");
590 
  lf_printf (file, "\n");
591 
}
592 
 
593 
void
594 
print_includes (lf *file)
595 
{
596 
  lf_printf (file, "\n");
597 
  lf_printf (file, "#include \"sim-inline.c\"\n");
598 
  lf_printf (file, "\n");
599 
  print_include_inline (file, options.module.itable);
600 
  print_include_inline (file, options.module.idecode);
601 
  print_include_inline (file, options.module.support);
602 
}
603 
 
604 
 
605 
/****************************************************************/
606 
 
607 
 
608 
static void
609 
gen_semantics_h (lf *file, insn_list *semantics, int max_nr_words)
610 
{
611 
  int word_nr;
612 
  insn_list *semantic;
613 
  for (word_nr = -1; word_nr <= max_nr_words; word_nr++)
614 
    {
615 
      lf_printf (file, "typedef ");
616 
      print_semantic_function_type (file);
617 
      lf_printf (file, " %sidecode_semantic", options.module.global.prefix.l);
618 
      if (word_nr >= 0)
619 
        lf_printf (file, "_%d", word_nr);
620 
      lf_printf (file, "\n(");
621 
      lf_indent (file, +1);
622 
      print_semantic_function_formal (file, word_nr);
623 
      lf_indent (file, -1);
624 
      lf_printf (file, ");\n");
625 
      lf_printf (file, "\n");
626 
    }
627 
  switch (options.gen.code)
628 
    {
629 
    case generate_calls:
630 
      for (semantic = semantics; semantic != NULL; semantic = semantic->next)
631 
        {
632 
          /* Ignore any special/internal instructions */
633 
          if (semantic->insn->nr_words == 0)
634 
            continue;
635 
          print_semantic_declaration (file,
636 
                                      semantic->insn,
637 
                                      semantic->expanded_bits,
638 
                                      semantic->opcodes,
639 
                                      semantic->nr_prefetched_words);
640 
        }
641 
      break;
642 
    case generate_jumps:
643 
      lf_print__this_file_is_empty (file, "generating jumps");
644 
      break;
645 
    }
646 
}
647 
 
648 
 
649 
static void
650 
gen_semantics_c (lf *file, insn_list *semantics, cache_entry *cache_rules)
651 
{
652 
  if (options.gen.code == generate_calls)
653 
    {
654 
      insn_list *semantic;
655 
      print_includes (file);
656 
      print_include (file, options.module.semantics);
657 
      lf_printf (file, "\n");
658 
 
659 
      for (semantic = semantics; semantic != NULL; semantic = semantic->next)
660 
        {
661 
          /* Ignore any special/internal instructions */
662 
          if (semantic->insn->nr_words == 0)
663 
            continue;
664 
          print_semantic_definition (file,
665 
                                     semantic->insn,
666 
                                     semantic->expanded_bits,
667 
                                     semantic->opcodes,
668 
                                     cache_rules,
669 
                                     semantic->nr_prefetched_words);
670 
        }
671 
    }
672 
  else
673 
    {
674 
      lf_print__this_file_is_empty (file, "generating jump engine");
675 
    }
676 
}
677 
 
678 
 
679 
/****************************************************************/
680 
 
681 
 
682 
static void
683 
gen_icache_h (lf *file,
684 
              insn_list *semantic,
685 
              function_entry * functions, int max_nr_words)
686 
{
687 
  int word_nr;
688 
  for (word_nr = 0; word_nr <= max_nr_words; word_nr++)
689 
    {
690 
      lf_printf (file, "typedef ");
691 
      print_icache_function_type (file);
692 
      lf_printf (file, " %sidecode_icache_%d\n(",
693 
                 options.module.global.prefix.l, word_nr);
694 
      print_icache_function_formal (file, word_nr);
695 
      lf_printf (file, ");\n");
696 
      lf_printf (file, "\n");
697 
    }
698 
  if (options.gen.code == generate_calls && options.gen.icache)
699 
    {
700 
      function_entry_traverse (file, functions,
701 
                               print_icache_internal_function_declaration,
702 
                               NULL);
703 
      while (semantic != NULL)
704 
        {
705 
          print_icache_declaration (file,
706 
                                    semantic->insn,
707 
                                    semantic->expanded_bits,
708 
                                    semantic->opcodes,
709 
                                    semantic->nr_prefetched_words);
710 
          semantic = semantic->next;
711 
        }
712 
    }
713 
  else
714 
    {
715 
      lf_print__this_file_is_empty (file, "generating jump engine");
716 
    }
717 
}
718 
 
719 
static void
720 
gen_icache_c (lf *file,
721 
              insn_list *semantic,
722 
              function_entry * functions, cache_entry *cache_rules)
723 
{
724 
  /* output `internal' invalid/floating-point unavailable functions
725 
     where needed */
726 
  if (options.gen.code == generate_calls && options.gen.icache)
727 
    {
728 
      lf_printf (file, "\n");
729 
      lf_printf (file, "#include \"cpu.h\"\n");
730 
      lf_printf (file, "#include \"idecode.h\"\n");
731 
      lf_printf (file, "#include \"semantics.h\"\n");
732 
      lf_printf (file, "#include \"icache.h\"\n");
733 
      lf_printf (file, "#include \"support.h\"\n");
734 
      lf_printf (file, "\n");
735 
      function_entry_traverse (file, functions,
736 
                               print_icache_internal_function_definition,
737 
                               NULL);
738 
      lf_printf (file, "\n");
739 
      while (semantic != NULL)
740 
        {
741 
          print_icache_definition (file,
742 
                                   semantic->insn,
743 
                                   semantic->expanded_bits,
744 
                                   semantic->opcodes,
745 
                                   cache_rules,
746 
                                   semantic->nr_prefetched_words);
747 
          semantic = semantic->next;
748 
        }
749 
    }
750 
  else
751 
    {
752 
      lf_print__this_file_is_empty (file, "generating jump engine");
753 
    }
754 
}
755 
 
756 
 
757 
/****************************************************************/
758 
 
759 
 
760 
static void
761 
gen_idecode_h (lf *file,
762 
               gen_table *gen, insn_table *insns, cache_entry *cache_rules)
763 
{
764 
  lf_printf (file, "typedef unsigned%d %sinstruction_word;\n",
765 
             options.insn_bit_size, options.module.global.prefix.l);
766 
  if (options.gen.delayed_branch)
767 
    {
768 
      lf_printf (file, "typedef struct _%sinstruction_address {\n",
769 
                 options.module.global.prefix.l);
770 
      lf_printf (file, "  address_word ip; /* instruction pointer */\n");
771 
      lf_printf (file, "  address_word dp; /* delayed-slot pointer */\n");
772 
      lf_printf (file, "} %sinstruction_address;\n",
773 
                 options.module.global.prefix.l);
774 
    }
775 
  else
776 
    {
777 
      lf_printf (file, "typedef address_word %sinstruction_address;\n",
778 
                 options.module.global.prefix.l);
779 
 
780 
    }
781 
  if (options.gen.nia == nia_is_invalid
782 
      && strlen (options.module.global.prefix.u) > 0)
783 
    {
784 
      lf_indent_suppress (file);
785 
      lf_printf (file, "#define %sINVALID_INSTRUCTION_ADDRESS ",
786 
                 options.module.global.prefix.u);
787 
      lf_printf (file, "INVALID_INSTRUCTION_ADDRESS\n");
788 
    }
789 
  lf_printf (file, "\n");
790 
  print_icache_struct (file, insns, cache_rules);
791 
  lf_printf (file, "\n");
792 
  if (options.gen.icache)
793 
    {
794 
      ERROR ("FIXME - idecode with icache suffering from bit-rot");
795 
    }
796 
  else
797 
    {
798 
      gen_list *entry;
799 
      for (entry = gen->tables; entry != NULL; entry = entry->next)
800 
        {
801 
          print_idecode_issue_function_header (file,
802 
                                               (options.gen.multi_sim
803 
                                                ? entry->model->name
804 
                                                : NULL),
805 
                                               is_function_declaration,
806 
                                               1 /*ALWAYS ONE WORD */ );
807 
        }
808 
      if (options.gen.multi_sim)
809 
        {
810 
          print_idecode_issue_function_header (file,
811 
                                               NULL,
812 
                                               is_function_variable,
813 
                                               1 /*ALWAYS ONE WORD */ );
814 
        }
815 
    }
816 
}
817 
 
818 
 
819 
static void
820 
gen_idecode_c (lf *file,
821 
               gen_table *gen, insn_table *isa, cache_entry *cache_rules)
822 
{
823 
  /* the intro */
824 
  print_includes (file);
825 
  print_include_inline (file, options.module.semantics);
826 
  lf_printf (file, "\n");
827 
 
828 
  print_idecode_globals (file);
829 
  lf_printf (file, "\n");
830 
 
831 
  switch (options.gen.code)
832 
    {
833 
    case generate_calls:
834 
      {
835 
        gen_list *entry;
836 
        for (entry = gen->tables; entry != NULL; entry = entry->next)
837 
          {
838 
            print_idecode_lookups (file, entry->table, cache_rules);
839 
 
840 
            /* output the main idecode routine */
841 
            if (!options.gen.icache)
842 
              {
843 
                print_idecode_issue_function_header (file,
844 
                                                     (options.gen.multi_sim
845 
                                                      ? entry->model->name
846 
                                                      : NULL),
847 
                                                     1 /*is definition */ ,
848 
                                                     1 /*ALWAYS ONE WORD */ );
849 
                lf_printf (file, "{\n");
850 
                lf_indent (file, +2);
851 
                lf_printf (file, "%sinstruction_address nia;\n",
852 
                           options.module.global.prefix.l);
853 
                print_idecode_body (file, entry->table, "nia =");
854 
                lf_printf (file, "return nia;");
855 
                lf_indent (file, -2);
856 
                lf_printf (file, "}\n");
857 
              }
858 
          }
859 
        break;
860 
      }
861 
    case generate_jumps:
862 
      {
863 
        lf_print__this_file_is_empty (file, "generating a jump engine");
864 
        break;
865 
      }
866 
    }
867 
}
868 
 
869 
 
870 
/****************************************************************/
871 
 
872 
 
873 
static void
874 
gen_run_c (lf *file, gen_table *gen)
875 
{
876 
  gen_list *entry;
877 
  lf_printf (file, "#include \"sim-main.h\"\n");
878 
  lf_printf (file, "#include \"engine.h\"\n");
879 
  lf_printf (file, "#include \"idecode.h\"\n");
880 
  lf_printf (file, "#include \"bfd.h\"\n");
881 
  lf_printf (file, "\n");
882 
 
883 
  if (options.gen.multi_sim)
884 
    {
885 
      print_idecode_issue_function_header (file, NULL, is_function_variable,
886 
                                           1);
887 
      lf_printf (file, "\n");
888 
      print_engine_run_function_header (file, NULL, is_function_variable);
889 
      lf_printf (file, "\n");
890 
    }
891 
 
892 
  lf_printf (file, "void\n");
893 
  lf_printf (file, "sim_engine_run (SIM_DESC sd,\n");
894 
  lf_printf (file, "                int next_cpu_nr,\n");
895 
  lf_printf (file, "                int nr_cpus,\n");
896 
  lf_printf (file, "                int siggnal)\n");
897 
  lf_printf (file, "{\n");
898 
  lf_indent (file, +2);
899 
  if (options.gen.multi_sim)
900 
    {
901 
      lf_printf (file, "int mach;\n");
902 
      lf_printf (file, "if (STATE_ARCHITECTURE (sd) == NULL)\n");
903 
      lf_printf (file, "  mach = 0;\n");
904 
      lf_printf (file, "else\n");
905 
      lf_printf (file, "  mach = STATE_ARCHITECTURE (sd)->mach;\n");
906 
      lf_printf (file, "switch (mach)\n");
907 
      lf_printf (file, "  {\n");
908 
      lf_indent (file, +2);
909 
      for (entry = gen->tables; entry != NULL; entry = entry->next)
910 
        {
911 
          if (options.gen.default_model != NULL
912 
              && (strcmp (entry->model->name, options.gen.default_model) == 0
913 
                  || strcmp (entry->model->full_name,
914 
                             options.gen.default_model) == 0))
915 
            lf_printf (file, "default:\n");
916 
          lf_printf (file, "case bfd_mach_%s:\n", entry->model->full_name);
917 
          lf_indent (file, +2);
918 
          print_function_name (file, "issue", NULL,     /* format name */
919 
                               NULL,    /* NO processor */
920 
                               NULL,    /* expanded bits */
921 
                               function_name_prefix_idecode);
922 
          lf_printf (file, " = ");
923 
          print_function_name (file, "issue", NULL,     /* format name */
924 
                               entry->model->name, NULL,        /* expanded bits */
925 
                               function_name_prefix_idecode);
926 
          lf_printf (file, ";\n");
927 
          print_function_name (file, "run", NULL,       /* format name */
928 
                               NULL,    /* NO processor */
929 
                               NULL,    /* expanded bits */
930 
                               function_name_prefix_engine);
931 
          lf_printf (file, " = ");
932 
          print_function_name (file, "run", NULL,       /* format name */
933 
                               entry->model->name, NULL,        /* expanded bits */
934 
                               function_name_prefix_engine);
935 
          lf_printf (file, ";\n");
936 
          lf_printf (file, "break;\n");
937 
          lf_indent (file, -2);
938 
        }
939 
      if (options.gen.default_model == NULL)
940 
        {
941 
          lf_printf (file, "default:\n");
942 
          lf_indent (file, +2);
943 
          lf_printf (file, "sim_engine_abort (sd, NULL, NULL_CIA,\n");
944 
          lf_printf (file,
945 
                     "                  \"sim_engine_run - unknown machine\");\n");
946 
          lf_printf (file, "break;\n");
947 
          lf_indent (file, -2);
948 
        }
949 
      lf_indent (file, -2);
950 
      lf_printf (file, "  }\n");
951 
    }
952 
  print_function_name (file, "run", NULL,       /* format name */
953 
                       NULL,    /* NO processor */
954 
                       NULL,    /* expanded bits */
955 
                       function_name_prefix_engine);
956 
  lf_printf (file, " (sd, next_cpu_nr, nr_cpus, siggnal);\n");
957 
  lf_indent (file, -2);
958 
  lf_printf (file, "}\n");
959 
}
960 
 
961 
/****************************************************************/
962 
 
963 
static gen_table *
964 
do_gen (insn_table *isa, decode_table *decode_rules)
965 
{
966 
  gen_table *gen;
967 
  if (decode_rules == NULL)
968 
    error (NULL, "Must specify a decode table\n");
969 
  if (isa == NULL)
970 
    error (NULL, "Must specify an instruction table\n");
971 
  if (decode_table_max_word_nr (decode_rules) > 0)
972 
    options.gen.multi_word = decode_table_max_word_nr (decode_rules);
973 
  gen = make_gen_tables (isa, decode_rules);
974 
  gen_tables_expand_insns (gen);
975 
  gen_tables_expand_semantics (gen);
976 
  return gen;
977 
}
978 
 
979 
/****************************************************************/
980 
 
981 
igen_options options;
982 
 
983 
int
984 
main (int argc, char **argv, char **envp)
985 
{
986 
  cache_entry *cache_rules = NULL;
987 
  lf_file_references file_references = lf_include_references;
988 
  decode_table *decode_rules = NULL;
989 
  insn_table *isa = NULL;
990 
  gen_table *gen = NULL;
991 
  char *real_file_name = NULL;
992 
  int is_header = 0;
993 
  int ch;
994 
  lf *standard_out =
995 
    lf_open ("-", "stdout", lf_omit_references, lf_is_text, "igen");
996 
 
997 
  INIT_OPTIONS ();
998 
 
999 
  if (argc == 1)
1000 
    {
1001 
      printf ("Usage:\n");
1002 
      printf ("\n");
1003 
      printf ("  igen <config-opts> ... <input-opts>... <output-opts>...\n");
1004 
      printf ("\n");
1005 
      printf ("Config options:\n");
1006 
      printf ("\n");
1007 
      printf ("  -B <bit-size>\n");
1008 
      printf ("\t Set the number of bits in an instruction (deprecated).\n");
1009 
      printf
1010 
        ("\t This option can now be set directly in the instruction table.\n");
1011 
      printf ("\n");
1012 
      printf ("  -D <data-structure>\n");
1013 
      printf
1014 
        ("\t Dump the specified data structure to stdout. Valid structures include:\n");
1015 
      printf
1016 
        ("\t processor-names - list the names of all the processors (models)\n");
1017 
      printf ("\n");
1018 
      printf ("  -F <filter-list>\n");
1019 
      printf
1020 
        ("\t Filter out any instructions with a non-empty flags field that contains\n");
1021 
      printf ("\t a flag not listed in the <filter-list>.\n");
1022 
      printf ("\n");
1023 
      printf ("  -H <high-bit>\n");
1024 
      printf
1025 
        ("\t Set the number of the high (most significant) instruction bit (deprecated).\n");
1026 
      printf
1027 
        ("\t This option can now be set directly in the instruction table.\n");
1028 
      printf ("\n");
1029 
      printf ("  -I <directory>\n");
1030 
      printf
1031 
        ("\t Add <directory> to the list of directories searched when opening a file\n");
1032 
      printf ("\n");
1033 
      printf ("  -M <model-list>\n");
1034 
      printf
1035 
        ("\t Filter out any instructions that do not support at least one of the listed\n");
1036 
      printf
1037 
        ("\t models (An instructions with no model information is considered to support\n");
1038 
      printf ("\t all models.).\n");
1039 
      printf ("\n");
1040 
      printf ("  -N <nr-cpus>\n");
1041 
      printf ("\t Generate a simulator supporting <nr-cpus>\n");
1042 
      printf
1043 
        ("\t Specify `-N 0' to disable generation of the SMP. Specifying `-N 1' will\n");
1044 
      printf
1045 
        ("\t still generate an SMP enabled simulator but will only support one CPU.\n");
1046 
      printf ("\n");
1047 
      printf ("  -T <mechanism>\n");
1048 
      printf
1049 
        ("\t Override the decode mechanism specified by the decode rules\n");
1050 
      printf ("\n");
1051 
      printf ("  -P <prefix>\n");
1052 
      printf
1053 
        ("\t Prepend global names (except itable) with the string <prefix>.\n");
1054 
      printf
1055 
        ("\t Specify -P <module>=<prefix> to set a specific <module>'s prefix.\n");
1056 
      printf ("\n");
1057 
      printf ("  -S <suffix>\n");
1058 
      printf
1059 
        ("\t Replace a global name (suffix) (except itable) with the string <suffix>.\n");
1060 
      printf
1061 
        ("\t Specify -S <module>=<suffix> to change a specific <module>'s name (suffix).\n");
1062 
      printf ("\n");
1063 
      printf ("  -Werror\n");
1064 
      printf ("\t Make warnings errors\n");
1065 
      printf ("  -Wnodiscard\n");
1066 
      printf
1067 
        ("\t Suppress warnings about discarded functions and instructions\n");
1068 
      printf ("  -Wnowidth\n");
1069 
      printf
1070 
        ("\t Suppress warnings about instructions with invalid widths\n");
1071 
      printf ("  -Wnounimplemented\n");
1072 
      printf ("\t Suppress warnings about unimplemented instructions\n");
1073 
      printf ("\n");
1074 
      printf ("  -G [!]<gen-option>\n");
1075 
      printf ("\t Any of the following options:\n");
1076 
      printf ("\n");
1077 
      printf
1078 
        ("\t decode-duplicate       - Override the decode rules, forcing the duplication of\n");
1079 
      printf ("\t                          semantic functions\n");
1080 
      printf
1081 
        ("\t decode-combine         - Combine any duplicated entries within a table\n");
1082 
      printf
1083 
        ("\t decode-zero-reserved   - Override the decode rules, forcing reserved bits to be\n");
1084 
      printf ("\t                          treated as zero.\n");
1085 
      printf
1086 
        ("\t decode-switch-is-goto  - Overfide the padded-switch code type as a goto-switch\n");
1087 
      printf ("\n");
1088 
      printf
1089 
        ("\t gen-conditional-issue  - conditionally issue each instruction\n");
1090 
      printf
1091 
        ("\t gen-delayed-branch     - need both cia and nia passed around\n");
1092 
      printf
1093 
        ("\t gen-direct-access      - use #defines to directly access values\n");
1094 
      printf
1095 
        ("\t gen-zero-r<N>          - arch assumes GPR(<N>) == 0, keep it that way\n");
1096 
      printf
1097 
        ("\t gen-icache[=<N>        - generate an instruction cracking cache of size <N>\n");
1098 
      printf ("\t                          Default size is %d\n",
1099 
              options.gen.icache_size);
1100 
      printf
1101 
        ("\t gen-insn-in-icache     - save original instruction when cracking\n");
1102 
      printf
1103 
        ("\t gen-multi-sim[=MODEL]  - generate multiple simulators - one per model\n");
1104 
      printf
1105 
        ("\t                          If specified MODEL is made the default architecture.\n");
1106 
      printf
1107 
        ("\t                          By default, a single simulator that will\n");
1108 
      printf
1109 
        ("\t                          execute any instruction is generated\n");
1110 
      printf
1111 
        ("\t gen-multi-word         - generate code allowing for multi-word insns\n");
1112 
      printf
1113 
        ("\t gen-semantic-icache    - include semantic code in cracking functions\n");
1114 
      printf
1115 
        ("\t gen-slot-verification  - perform slot verification as part of decode\n");
1116 
      printf ("\t gen-nia-invalid        - NIA defaults to nia_invalid\n");
1117 
      printf ("\t gen-nia-void           - do not compute/return NIA\n");
1118 
      printf ("\n");
1119 
      printf
1120 
        ("\t trace-combine          - report combined entries a rule application\n");
1121 
      printf
1122 
        ("\t trace-entries          - report entries after a rules application\n");
1123 
      printf ("\t trace-rule-rejection   - report each rule as rejected\n");
1124 
      printf ("\t trace-rule-selection   - report each rule as selected\n");
1125 
      printf
1126 
        ("\t trace-insn-insertion   - report each instruction as it is inserted into a decode table\n");
1127 
      printf
1128 
        ("\t trace-rule-expansion   - report each instruction as it is expanded (before insertion into a decode table)\n");
1129 
      printf ("\t trace-all              - enable all trace options\n");
1130 
      printf ("\n");
1131 
      printf
1132 
        ("\t field-widths           - instruction formats specify widths (deprecated)\n");
1133 
      printf
1134 
        ("\t                          By default, an instruction format specifies bit\n");
1135 
      printf ("\t                          positions\n");
1136 
      printf
1137 
        ("\t                          This option can now be set directly in the\n");
1138 
      printf ("\t                          instruction table\n");
1139 
      printf
1140 
        ("\t jumps                  - use jumps instead of function calls\n");
1141 
      printf
1142 
        ("\t omit-line-numbers      - do not include line number information in the output\n");
1143 
      printf ("\n");
1144 
      printf ("Input options:\n");
1145 
      printf ("\n");
1146 
      printf ("  -k <cache-rules> (deprecated)\n");
1147 
      printf ("  -o <decode-rules>\n");
1148 
      printf ("  -i <instruction-table>\n");
1149 
      printf ("\n");
1150 
      printf ("Output options:\n");
1151 
      printf ("\n");
1152 
      printf ("  -x                    Perform expansion (required)\n");
1153 
      printf
1154 
        ("  -n <real-name>        Specify the real name of the next output file\n");
1155 
      printf
1156 
        ("  -h                 Generate the header (.h) file rather than the body (.c)\n");
1157 
      printf ("  -c <output-file>      output icache\n");
1158 
      printf ("  -d <output-file>      output idecode\n");
1159 
      printf ("  -e <output-file>      output engine\n");
1160 
      printf ("  -f <output-file>      output support functions\n");
1161 
      printf ("  -m <output-file>      output model\n");
1162 
      printf ("  -r <output-file>      output multi-sim run\n");
1163 
      printf ("  -s <output-file>      output schematic\n");
1164 
      printf ("  -t <output-file>      output itable\n");
1165 
    }
1166 
 
1167 
  while ((ch = getopt (argc, argv,
1168 
                       "B:D:F:G:H:I:M:N:P:T:W:o:k:i:n:hc:d:e:m:r:s:t:f:x"))
1169 
         != -1)
1170 
    {
1171 
      fprintf (stderr, "  -%c ", ch);
1172 
      if (optarg)
1173 
        fprintf (stderr, "%s ", optarg);
1174 
      fprintf (stderr, "\\\n");
1175 
 
1176 
      switch (ch)
1177 
        {
1178 
 
1179 
        case 'M':
1180 
          filter_parse (&options.model_filter, optarg);
1181 
          break;
1182 
 
1183 
        case 'D':
1184 
          if (strcmp (optarg, "processor-names"))
1185 
            {
1186 
              char *processor;
1187 
              for (processor = filter_next (options.model_filter, "");
1188 
                   processor != NULL;
1189 
                   processor = filter_next (options.model_filter, processor))
1190 
                lf_printf (standard_out, "%s\n", processor);
1191 
            }
1192 
          else
1193 
            error (NULL, "Unknown data structure %s, not dumped\n", optarg);
1194 
          break;
1195 
 
1196 
        case 'F':
1197 
          filter_parse (&options.flags_filter, optarg);
1198 
          break;
1199 
 
1200 
        case 'I':
1201 
          {
1202 
            table_include **dir = &options.include;
1203 
            while ((*dir) != NULL)
1204 
              dir = &(*dir)->next;
1205 
            (*dir) = ZALLOC (table_include);
1206 
            (*dir)->dir = strdup (optarg);
1207 
          }
1208 
          break;
1209 
 
1210 
        case 'B':
1211 
          options.insn_bit_size = a2i (optarg);
1212 
          if (options.insn_bit_size <= 0
1213 
              || options.insn_bit_size > max_insn_bit_size)
1214 
            {
1215 
              error (NULL, "Instruction bitsize must be in range 1..%d\n",
1216 
                     max_insn_bit_size);
1217 
            }
1218 
          if (options.hi_bit_nr != options.insn_bit_size - 1
1219 
              && options.hi_bit_nr != 0)
1220 
            {
1221 
              error (NULL, "Conflict betweem hi-bit-nr and insn-bit-size\n");
1222 
            }
1223 
          break;
1224 
 
1225 
        case 'H':
1226 
          options.hi_bit_nr = a2i (optarg);
1227 
          if (options.hi_bit_nr != options.insn_bit_size - 1
1228 
              && options.hi_bit_nr != 0)
1229 
            {
1230 
              error (NULL, "Conflict between hi-bit-nr and insn-bit-size\n");
1231 
            }
1232 
          break;
1233 
 
1234 
        case 'N':
1235 
          options.gen.smp = a2i (optarg);
1236 
          break;
1237 
 
1238 
        case 'P':
1239 
        case 'S':
1240 
          {
1241 
            igen_module *names;
1242 
            igen_name *name;
1243 
            char *chp;
1244 
            chp = strchr (optarg, '=');
1245 
            if (chp == NULL)
1246 
              {
1247 
                names = &options.module.global;
1248 
                chp = optarg;
1249 
              }
1250 
            else
1251 
              {
1252 
                chp = chp + 1;  /* skip `=' */
1253 
                names = NULL;
1254 
                if (strncmp (optarg, "global=", chp - optarg) == 0)
1255 
                  {
1256 
                    names = &options.module.global;
1257 
                  }
1258 
                if (strncmp (optarg, "engine=", chp - optarg) == 0)
1259 
                  {
1260 
                    names = &options.module.engine;
1261 
                  }
1262 
                if (strncmp (optarg, "icache=", chp - optarg) == 0)
1263 
                  {
1264 
                    names = &options.module.icache;
1265 
                  }
1266 
                if (strncmp (optarg, "idecode=", chp - optarg) == 0)
1267 
                  {
1268 
                    names = &options.module.idecode;
1269 
                  }
1270 
                if (strncmp (optarg, "itable=", chp - optarg) == 0)
1271 
                  {
1272 
                    names = &options.module.itable;
1273 
                  }
1274 
                if (strncmp (optarg, "semantics=", chp - optarg) == 0)
1275 
                  {
1276 
                    names = &options.module.semantics;
1277 
                  }
1278 
                if (strncmp (optarg, "support=", chp - optarg) == 0)
1279 
                  {
1280 
                    names = &options.module.support;
1281 
                  }
1282 
                if (names == NULL)
1283 
                  {
1284 
                    error (NULL, "Prefix `%s' unreconized\n", optarg);
1285 
                  }
1286 
              }
1287 
            switch (ch)
1288 
              {
1289 
              case 'P':
1290 
                name = &names->prefix;
1291 
                break;
1292 
              case 'S':
1293 
                name = &names->suffix;
1294 
                break;
1295 
              default:
1296 
                abort ();       /* Bad switch.  */
1297 
              }
1298 
            name->u = strdup (chp);
1299 
            name->l = strdup (chp);
1300 
            chp = name->u;
1301 
            while (*chp)
1302 
              {
1303 
                if (islower (*chp))
1304 
                  *chp = toupper (*chp);
1305 
                chp++;
1306 
              }
1307 
            if (name == &options.module.global.prefix)
1308 
              {
1309 
                options.module.engine.prefix = options.module.global.prefix;
1310 
                options.module.icache.prefix = options.module.global.prefix;
1311 
                options.module.idecode.prefix = options.module.global.prefix;
1312 
                /* options.module.itable.prefix = options.module.global.prefix; */
1313 
                options.module.semantics.prefix =
1314 
                  options.module.global.prefix;
1315 
                options.module.support.prefix = options.module.global.prefix;
1316 
              }
1317 
            if (name == &options.module.global.suffix)
1318 
              {
1319 
                options.module.engine.suffix = options.module.global.suffix;
1320 
                options.module.icache.suffix = options.module.global.suffix;
1321 
                options.module.idecode.suffix = options.module.global.suffix;
1322 
                /* options.module.itable.suffix = options.module.global.suffix; */
1323 
                options.module.semantics.suffix =
1324 
                  options.module.global.suffix;
1325 
                options.module.support.suffix = options.module.global.suffix;
1326 
              }
1327 
            break;
1328 
          }
1329 
 
1330 
        case 'W':
1331 
          {
1332 
            if (strcmp (optarg, "error") == 0)
1333 
              options.warning = error;
1334 
            else if (strcmp (optarg, "nodiscard") == 0)
1335 
              options.warn.discard = 0;
1336 
            else if (strcmp (optarg, "discard") == 0)
1337 
              options.warn.discard = 1;
1338 
            else if (strcmp (optarg, "nowidth") == 0)
1339 
              options.warn.width = 0;
1340 
            else if (strcmp (optarg, "width") == 0)
1341 
              options.warn.width = 1;
1342 
            else if (strcmp (optarg, "nounimplemented") == 0)
1343 
              options.warn.unimplemented = 0;
1344 
            else if (strcmp (optarg, "unimplemented") == 0)
1345 
              options.warn.unimplemented = 1;
1346 
            else
1347 
              error (NULL, "Unknown -W argument `%s'\n", optarg);
1348 
            break;
1349 
          }
1350 
 
1351 
 
1352 
        case 'G':
1353 
          {
1354 
            int enable_p;
1355 
            char *argp;
1356 
            if (strncmp (optarg, "no-", strlen ("no-")) == 0)
1357 
              {
1358 
                argp = optarg + strlen ("no-");
1359 
                enable_p = 0;
1360 
              }
1361 
            else if (strncmp (optarg, "!", strlen ("!")) == 0)
1362 
              {
1363 
                argp = optarg + strlen ("no-");
1364 
                enable_p = 0;
1365 
              }
1366 
            else
1367 
              {
1368 
                argp = optarg;
1369 
                enable_p = 1;
1370 
              }
1371 
            if (strcmp (argp, "decode-duplicate") == 0)
1372 
              {
1373 
                options.decode.duplicate = enable_p;
1374 
              }
1375 
            else if (strcmp (argp, "decode-combine") == 0)
1376 
              {
1377 
                options.decode.combine = enable_p;
1378 
              }
1379 
            else if (strcmp (argp, "decode-zero-reserved") == 0)
1380 
              {
1381 
                options.decode.zero_reserved = enable_p;
1382 
              }
1383 
 
1384 
            else if (strcmp (argp, "gen-conditional-issue") == 0)
1385 
              {
1386 
                options.gen.conditional_issue = enable_p;
1387 
              }
1388 
            else if (strcmp (argp, "conditional-issue") == 0)
1389 
              {
1390 
                options.gen.conditional_issue = enable_p;
1391 
                options.warning (NULL,
1392 
                                 "Option conditional-issue replaced by gen-conditional-issue\n");
1393 
              }
1394 
            else if (strcmp (argp, "gen-delayed-branch") == 0)
1395 
              {
1396 
                options.gen.delayed_branch = enable_p;
1397 
              }
1398 
            else if (strcmp (argp, "delayed-branch") == 0)
1399 
              {
1400 
                options.gen.delayed_branch = enable_p;
1401 
                options.warning (NULL,
1402 
                                 "Option delayed-branch replaced by gen-delayed-branch\n");
1403 
              }
1404 
            else if (strcmp (argp, "gen-direct-access") == 0)
1405 
              {
1406 
                options.gen.direct_access = enable_p;
1407 
              }
1408 
            else if (strcmp (argp, "direct-access") == 0)
1409 
              {
1410 
                options.gen.direct_access = enable_p;
1411 
                options.warning (NULL,
1412 
                                 "Option direct-access replaced by gen-direct-access\n");
1413 
              }
1414 
            else if (strncmp (argp, "gen-zero-r", strlen ("gen-zero-r")) == 0)
1415 
              {
1416 
                options.gen.zero_reg = enable_p;
1417 
                options.gen.zero_reg_nr = atoi (argp + strlen ("gen-zero-r"));
1418 
              }
1419 
            else if (strncmp (argp, "zero-r", strlen ("zero-r")) == 0)
1420 
              {
1421 
                options.gen.zero_reg = enable_p;
1422 
                options.gen.zero_reg_nr = atoi (argp + strlen ("zero-r"));
1423 
                options.warning (NULL,
1424 
                                 "Option zero-r<N> replaced by gen-zero-r<N>\n");
1425 
              }
1426 
            else if (strncmp (argp, "gen-icache", strlen ("gen-icache")) == 0)
1427 
              {
1428 
                switch (argp[strlen ("gen-icache")])
1429 
                  {
1430 
                  case '=':
1431 
                    options.gen.icache_size =
1432 
                      atoi (argp + strlen ("gen-icache") + 1);
1433 
                    options.gen.icache = enable_p;
1434 
                    break;
1435 
                  case '\0':
1436 
                    options.gen.icache = enable_p;
1437 
                    break;
1438 
                  default:
1439 
                    error (NULL,
1440 
                           "Expecting -Ggen-icache or -Ggen-icache=<N>\n");
1441 
                  }
1442 
              }
1443 
            else if (strcmp (argp, "gen-insn-in-icache") == 0)
1444 
              {
1445 
                options.gen.insn_in_icache = enable_p;
1446 
              }
1447 
            else if (strncmp (argp, "gen-multi-sim", strlen ("gen-multi-sim"))
1448 
                     == 0)
1449 
              {
1450 
                char *arg = &argp[strlen ("gen-multi-sim")];
1451 
                switch (arg[0])
1452 
                  {
1453 
                  case '=':
1454 
                    options.gen.multi_sim = enable_p;
1455 
                    options.gen.default_model = arg + 1;
1456 
                    if (!filter_is_member
1457 
                        (options.model_filter, options.gen.default_model))
1458 
                      error (NULL, "multi-sim model %s unknown\n",
1459 
                             options.gen.default_model);
1460 
                    break;
1461 
                  case '\0':
1462 
                    options.gen.multi_sim = enable_p;
1463 
                    options.gen.default_model = NULL;
1464 
                    break;
1465 
                  default:
1466 
                    error (NULL,
1467 
                           "Expecting -Ggen-multi-sim or -Ggen-multi-sim=<MODEL>\n");
1468 
                    break;
1469 
                  }
1470 
              }
1471 
            else if (strcmp (argp, "gen-multi-word") == 0)
1472 
              {
1473 
                options.gen.multi_word = enable_p;
1474 
              }
1475 
            else if (strcmp (argp, "gen-semantic-icache") == 0)
1476 
              {
1477 
                options.gen.semantic_icache = enable_p;
1478 
              }
1479 
            else if (strcmp (argp, "gen-slot-verification") == 0)
1480 
              {
1481 
                options.gen.slot_verification = enable_p;
1482 
              }
1483 
            else if (strcmp (argp, "verify-slot") == 0)
1484 
              {
1485 
                options.gen.slot_verification = enable_p;
1486 
                options.warning (NULL,
1487 
                                 "Option verify-slot replaced by gen-slot-verification\n");
1488 
              }
1489 
            else if (strcmp (argp, "gen-nia-invalid") == 0)
1490 
              {
1491 
                options.gen.nia = nia_is_invalid;
1492 
              }
1493 
            else if (strcmp (argp, "default-nia-minus-one") == 0)
1494 
              {
1495 
                options.gen.nia = nia_is_invalid;
1496 
                options.warning (NULL,
1497 
                                 "Option default-nia-minus-one replaced by gen-nia-invalid\n");
1498 
              }
1499 
            else if (strcmp (argp, "gen-nia-void") == 0)
1500 
              {
1501 
                options.gen.nia = nia_is_void;
1502 
              }
1503 
            else if (strcmp (argp, "trace-all") == 0)
1504 
              {
1505 
                memset (&options.trace, enable_p, sizeof (options.trace));
1506 
              }
1507 
            else if (strcmp (argp, "trace-combine") == 0)
1508 
              {
1509 
                options.trace.combine = enable_p;
1510 
              }
1511 
            else if (strcmp (argp, "trace-entries") == 0)
1512 
              {
1513 
                options.trace.entries = enable_p;
1514 
              }
1515 
            else if (strcmp (argp, "trace-rule-rejection") == 0)
1516 
              {
1517 
                options.trace.rule_rejection = enable_p;
1518 
              }
1519 
            else if (strcmp (argp, "trace-rule-selection") == 0)
1520 
              {
1521 
                options.trace.rule_selection = enable_p;
1522 
              }
1523 
            else if (strcmp (argp, "trace-insn-insertion") == 0)
1524 
              {
1525 
                options.trace.insn_insertion = enable_p;
1526 
              }
1527 
            else if (strcmp (argp, "trace-insn-expansion") == 0)
1528 
              {
1529 
                options.trace.insn_expansion = enable_p;
1530 
              }
1531 
            else if (strcmp (argp, "jumps") == 0)
1532 
              {
1533 
                options.gen.code = generate_jumps;
1534 
              }
1535 
            else if (strcmp (argp, "field-widths") == 0)
1536 
              {
1537 
                options.insn_specifying_widths = enable_p;
1538 
              }
1539 
            else if (strcmp (argp, "omit-line-numbers") == 0)
1540 
              {
1541 
                file_references = lf_omit_references;
1542 
              }
1543 
            else
1544 
              {
1545 
                error (NULL, "Unknown option %s\n", optarg);
1546 
              }
1547 
            break;
1548 
          }
1549 
 
1550 
        case 'i':
1551 
          isa = load_insn_table (optarg, cache_rules);
1552 
          if (isa->illegal_insn == NULL)
1553 
            error (NULL, "illegal-instruction missing from insn table\n");
1554 
          break;
1555 
 
1556 
        case 'x':
1557 
          gen = do_gen (isa, decode_rules);
1558 
          break;
1559 
 
1560 
        case 'o':
1561 
          decode_rules = load_decode_table (optarg);
1562 
          break;
1563 
 
1564 
        case 'k':
1565 
          if (isa != NULL)
1566 
            error (NULL, "Cache file must appear before the insn file\n");
1567 
          cache_rules = load_cache_table (optarg);
1568 
          break;
1569 
 
1570 
        case 'n':
1571 
          real_file_name = strdup (optarg);
1572 
          break;
1573 
 
1574 
        case 'h':
1575 
          is_header = 1;
1576 
          break;
1577 
 
1578 
        case 'c':
1579 
        case 'd':
1580 
        case 'e':
1581 
        case 'f':
1582 
        case 'm':
1583 
        case 'r':
1584 
        case 's':
1585 
        case 't':
1586 
          {
1587 
            lf *file = lf_open (optarg, real_file_name, file_references,
1588 
                                (is_header ? lf_is_h : lf_is_c),
1589 
                                argv[0]);
1590 
            if (gen == NULL && ch != 't' && ch != 'm' && ch != 'f')
1591 
              {
1592 
                options.warning (NULL,
1593 
                                 "Explicitly generate tables with -x option\n");
1594 
                gen = do_gen (isa, decode_rules);
1595 
              }
1596 
            lf_print__file_start (file);
1597 
            switch (ch)
1598 
              {
1599 
              case 'm':
1600 
                if (is_header)
1601 
                  gen_model_h (file, isa);
1602 
                else
1603 
                  gen_model_c (file, isa);
1604 
                break;
1605 
              case 't':
1606 
                if (is_header)
1607 
                  gen_itable_h (file, isa);
1608 
                else
1609 
                  gen_itable_c (file, isa);
1610 
                break;
1611 
              case 'f':
1612 
                if (is_header)
1613 
                  gen_support_h (file, isa);
1614 
                else
1615 
                  gen_support_c (file, isa);
1616 
                break;
1617 
              case 'r':
1618 
                if (is_header)
1619 
                  options.warning (NULL, "-hr option ignored\n");
1620 
                else
1621 
                  gen_run_c (file, gen);
1622 
                break;
1623 
              case 's':
1624 
                if (is_header)
1625 
                  gen_semantics_h (file, gen->semantics, isa->max_nr_words);
1626 
                else
1627 
                  gen_semantics_c (file, gen->semantics, isa->caches);
1628 
                break;
1629 
              case 'd':
1630 
                if (is_header)
1631 
                  gen_idecode_h (file, gen, isa, cache_rules);
1632 
                else
1633 
                  gen_idecode_c (file, gen, isa, cache_rules);
1634 
                break;
1635 
              case 'e':
1636 
                if (is_header)
1637 
                  gen_engine_h (file, gen, isa, cache_rules);
1638 
                else
1639 
                  gen_engine_c (file, gen, isa, cache_rules);
1640 
                break;
1641 
              case 'c':
1642 
                if (is_header)
1643 
                  gen_icache_h (file,
1644 
                                gen->semantics,
1645 
                                isa->functions, isa->max_nr_words);
1646 
                else
1647 
                  gen_icache_c (file,
1648 
                                gen->semantics, isa->functions, cache_rules);
1649 
                break;
1650 
              }
1651 
            lf_print__file_finish (file);
1652 
            lf_close (file);
1653 
            is_header = 0;
1654 
          }
1655 
          real_file_name = NULL;
1656 
          break;
1657 
        default:
1658 
          ERROR ("Bad switch");
1659 
        }
1660 
    }
1661 
  return (0);
1662 
}

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.