1 /* This file is part of the program psim.
3 Copyright (C) 1994-1997, Andrew Cagney <cagney@highland.com.au>
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.
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.
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.
34 #include "ld-decode.h"
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"
49 /****************************************************************/
52 /* Semantic functions */
55 print_semantic_function_formal (lf
*file
,
56 int nr_prefetched_words
)
60 if (options
.gen
.icache
|| nr_prefetched_words
< 0)
62 nr
+= lf_printf (file
, "SIM_DESC sd,\n");
63 nr
+= lf_printf (file
, "%sidecode_cache *cache_entry,\n",
64 options
.prefix
.global
.name
);
65 nr
+= lf_printf (file
, "%sinstruction_address cia",
66 options
.prefix
.global
.name
);
68 else if (options
.gen
.smp
)
70 nr
+= lf_printf (file
, "sim_cpu *cpu,\n");
71 for (word_nr
= 0; word_nr
< nr_prefetched_words
; word_nr
++)
73 nr
+= lf_printf (file
, "%sinstruction_word instruction_%d,\n",
74 options
.prefix
.global
.name
,
77 nr
+= lf_printf (file
, "%sinstruction_address cia",
78 options
.prefix
.global
.name
);
82 nr
+= lf_printf (file
, "SIM_DESC sd,\n");
83 for (word_nr
= 0; word_nr
< nr_prefetched_words
; word_nr
++)
85 nr
+= lf_printf (file
, "%sinstruction_word instruction_%d,\n",
86 options
.prefix
.global
.name
,
89 nr
+= lf_printf (file
, "%sinstruction_address cia",
90 options
.prefix
.global
.name
);
96 print_semantic_function_actual (lf
*file
,
97 int nr_prefetched_words
)
101 if (options
.gen
.icache
|| nr_prefetched_words
< 0)
103 nr
+= lf_printf (file
, "sd, cache_entry, cia");
108 nr
+= lf_printf (file
, "cpu");
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");
119 print_semantic_function_type (lf
*file
)
122 nr
+= lf_printf (file
, "%sinstruction_address",
123 options
.prefix
.global
.name
);
128 /* Idecode functions */
131 print_icache_function_formal (lf
*file
,
132 int nr_prefetched_words
)
137 nr
+= lf_printf (file
, "sim_cpu *cpu,\n");
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
.prefix
.global
.name
, word_nr
);
143 nr
+= lf_printf (file
, " %sinstruction_address cia,\n",
144 options
.prefix
.global
.name
);
145 nr
+= lf_printf (file
, " %sidecode_cache *cache_entry",
146 options
.prefix
.global
.name
);
151 print_icache_function_actual (lf
*file
,
152 int nr_prefetched_words
)
157 nr
+= lf_printf (file
, "cpu");
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");
167 print_icache_function_type (lf
*file
)
170 if (options
.gen
.semantic_icache
)
172 nr
= print_semantic_function_type (file
);
176 nr
= lf_printf (file
, "%sidecode_semantic *",
177 options
.prefix
.global
.name
);
186 print_opcode_bits (lf
*file
,
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
));
200 nr
+= lf_putint (file
, bits
->value
);
202 nr
+= print_opcode_bits (file
, bits
->next
);
207 print_c_name (lf
*file
,
212 for (pos
= name
; *pos
!= '\0'; pos
++)
221 nr
+= lf_putchr (file
, '_');
224 nr
+= lf_putchr (file
, *pos
);
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
)
243 case function_name_prefix_semantics
:
244 nr
+= lf_printf (file
, "%s", options
.prefix
.semantics
.name
);
245 nr
+= lf_printf (file
, "semantic_");
247 case function_name_prefix_idecode
:
248 nr
+= lf_printf (file
, "%s", options
.prefix
.idecode
.name
);
249 nr
+= lf_printf (file
, "idecode_");
251 case function_name_prefix_itable
:
252 nr
+= lf_printf (file
, "%sitable_", options
.prefix
.itable
.name
);
254 case function_name_prefix_icache
:
255 nr
+= lf_printf (file
, "%s", options
.prefix
.icache
.name
);
256 nr
+= lf_printf (file
, "icache_");
258 case function_name_prefix_engine
:
259 nr
+= lf_printf (file
, "%s", options
.prefix
.engine
.name
);
260 nr
+= lf_printf (file
, "engine_");
265 if (model_name
!= NULL
)
267 nr
+= print_c_name (file
, model_name
);
268 nr
+= lf_printf (file
, "_");
271 /* the function name */
272 nr
+= print_c_name (file
, basename
);
274 /* the format name if available */
275 if (format_name
!= NULL
)
277 nr
+= print_c_name (file
, format_name
);
278 nr
+= lf_printf (file
, "_");
282 nr
+= print_opcode_bits (file
, expanded_bits
);
289 print_my_defines (lf
*file
,
290 const char *basename
,
291 const char *format_name
,
292 opcode_bits
*expanded_bits
)
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
,
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
,
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
,
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
,
330 function_name_prefix_none
);
331 lf_printf (file
, "\"\n");
336 print_itrace_prefix (lf
*file
,
337 const char *phase_lc
)
339 const char *prefix
= "trace_one_insn (";
340 int indent
= strlen (prefix
);
341 lf_printf (file
, "%sSD, CPU, %s, TRACE_LINENUM_P (CPU),\n",
342 prefix
, (options
.gen
.delayed_branch
? "cia.ip" : "cia"));
343 lf_indent (file
, +indent
);
344 lf_printf (file
, "%sitable[MY_INDEX].file,\n", options
.prefix
.itable
.name
);
345 lf_printf (file
, "%sitable[MY_INDEX].line_nr,\n", options
.prefix
.itable
.name
);
346 lf_printf (file
, "\"%s\",\n", phase_lc
);
347 lf_printf (file
, "\"%%-18s - ");
353 print_itrace_format (lf
*file
,
354 insn_mnemonic_entry
*assembler
)
356 /* pass=1 is fmt string; pass=2 is is arguments */
358 /* print the format string */
359 for (pass
= 1; pass
<= 2; pass
++)
361 const char *chp
= assembler
->format
;
362 chp
++; /* skip the leading quote */
363 /* prefix the format with the insn `name' */
366 lf_printf (file
, ",\n");
367 lf_printf (file
, "%sitable[MY_INDEX].name", options
.prefix
.itable
.name
);
369 /* write out the format/args */
372 if (chp
[0] == '\\' && (chp
[1] == '<' || chp
[1] == '>'))
375 lf_putchr (file
, chp
[1]);
378 else if (chp
[0] == '<' || chp
[0] == '%')
380 /* parse [ "%" ... ] "<" [ func "#" ] param ">" */
386 /* the "%" ... "<" format */
388 while (chp
[0] != '<' && chp
[0] != '\0')
391 error (assembler
->line
, "Missing `<' after `%%'\n");
393 /* [ "func" # ] OR "param" */
396 while (chp
[0] != '>' && chp
[0] != '#' && chp
[0] != '\0')
398 strlen_func
= chp
- func
;
403 while (chp
[0] != '>' && chp
[0] != '\0')
406 strlen_param
= chp
- param
;
408 error (assembler
->line
, "Missing closing `>' in assembler string\n");
412 lf_printf (file
, ",\n");
413 if (strncmp (fmt
, "<", 1) == 0)
414 /* implicit long int format */
417 lf_printf (file
, "%%ld");
420 lf_printf (file
, "(long) ");
421 lf_write (file
, param
, strlen_param
);
424 else if (strncmp (fmt
, "%<", 2) == 0)
425 /* explicit format */
428 lf_printf (file
, "%%");
430 lf_write (file
, param
, strlen_param
);
432 else if (strncmp (fmt
, "%s<", 3) == 0)
436 lf_printf (file
, "%%s");
439 lf_printf (file
, "%sstr_", options
.prefix
.global
.name
);
440 lf_write (file
, func
, strlen_func
);
441 lf_printf (file
, " (SD_, ");
442 lf_write (file
, param
, strlen_param
);
443 lf_printf (file
, ")");
446 else if (strncmp (fmt
, "%lx<", 4) == 0)
450 lf_printf (file
, "%%lx");
453 lf_printf (file
, "(unsigned long) ");
454 lf_write (file
, param
, strlen_param
);
457 else if (strncmp (fmt
, "%08lx<", 6) == 0)
461 lf_printf (file
, "%%08lx");
464 lf_printf (file
, "(unsigned long) ");
465 lf_write (file
, param
, strlen_param
);
469 error (assembler
->line
, "Unknown assembler string format\n");
474 lf_putchr (file
, chp
[0]);
479 lf_printf (file
, ");\n");
484 print_itrace (lf
*file
,
488 const char *phase
= (idecode
) ? "DECODE" : "INSN";
489 const char *phase_lc
= (idecode
) ? "decode" : "insn";
490 lf_printf (file
, "\n");
491 lf_indent_suppress (file
);
492 lf_printf (file
, "#if defined (WITH_TRACE)\n");
493 lf_printf (file
, "/* trace the instructions execution if enabled */\n");
494 lf_printf (file
, "if (TRACE_%s_P (CPU)) {\n", phase
);
495 lf_indent (file
, +2);
496 if (insn
->mnemonics
!= NULL
)
498 insn_mnemonic_entry
*assembler
= insn
->mnemonics
;
502 if (assembler
->condition
!= NULL
)
505 lf_printf (file
, "%sif (%s)\n",
506 is_first
? "" : "else ",
507 assembler
->condition
);
508 lf_indent (file
, +2);
509 indent
= print_itrace_prefix (file
, phase_lc
);
510 print_itrace_format (file
, assembler
);
511 lf_indent (file
, -indent
);
512 lf_indent (file
, -2);
513 if (assembler
->next
== NULL
)
514 error (assembler
->line
, "Missing final unconditional assembler\n");
521 lf_printf (file
, "else\n");
522 lf_indent (file
, +2);
524 indent
= print_itrace_prefix (file
, phase_lc
);
525 print_itrace_format (file
, assembler
);
526 lf_indent (file
, -indent
);
528 lf_indent (file
, -2);
529 if (assembler
->next
!= NULL
)
530 error (assembler
->line
, "Unconditional assembler is not last\n");
533 assembler
= assembler
->next
;
535 while (assembler
!= NULL
);
539 int indent
= print_itrace_prefix (file
, phase_lc
);
540 lf_printf (file
, "?\",\n");
541 lf_printf (file
, "itable[MY_INDEX].name);\n");
542 lf_indent (file
, -indent
);
544 lf_indent (file
, -2);
545 lf_printf (file
, "}\n");
546 lf_indent_suppress (file
);
547 lf_printf (file
, "#endif\n");
552 print_sim_engine_abort (lf
*file
,
555 lf_printf (file
, "sim_engine_abort (SD, CPU, cia, ");
556 lf_printf (file
, "\"%s\"", message
);
557 lf_printf (file
, ");\n");
561 /****************************************************************/
565 gen_semantics_h (lf
*file
,
566 insn_list
*semantics
,
571 for (word_nr
= -1; word_nr
<= max_nr_words
; word_nr
++)
573 lf_printf (file
, "typedef ");
574 print_semantic_function_type (file
);
575 lf_printf (file
, " %sidecode_semantic",
576 options
.prefix
.global
.name
);
578 lf_printf (file
, "_%d", word_nr
);
579 lf_printf (file
, "\n(");
580 lf_indent (file
, +1);
581 print_semantic_function_formal (file
, word_nr
);
582 lf_indent (file
, -1);
583 lf_printf (file
, ");\n");
584 lf_printf (file
, "\n");
586 switch (options
.gen
.code
)
589 for (semantic
= semantics
; semantic
!= NULL
; semantic
= semantic
->next
)
591 /* Ignore any special/internal instructions */
592 if (semantic
->insn
->nr_words
== 0)
594 print_semantic_declaration (file
,
596 semantic
->expanded_bits
,
598 semantic
->nr_prefetched_words
);
602 lf_print__this_file_is_empty (file
, "generating jumps");
609 gen_semantics_c (lf
*file
,
610 insn_list
*semantics
,
611 cache_entry
*cache_rules
)
613 if (options
.gen
.code
== generate_calls
)
616 lf_printf (file
, "\n");
617 lf_printf (file
, "#include \"sim-main.h\"\n");
618 lf_printf (file
, "#include \"%sitable.h\"\n",
619 options
.prefix
.itable
.name
);
620 lf_printf (file
, "#include \"%sidecode.h\"\n",
621 options
.prefix
.idecode
.name
);
622 lf_printf (file
, "#include \"%ssemantics.h\"\n",
623 options
.prefix
.semantics
.name
);
624 lf_printf (file
, "#include \"%ssupport.h\"\n",
625 options
.prefix
.support
.name
);
626 lf_printf (file
, "\n");
627 for (semantic
= semantics
; semantic
!= NULL
; semantic
= semantic
->next
)
629 /* Ignore any special/internal instructions */
630 if (semantic
->insn
->nr_words
== 0)
632 print_semantic_definition (file
,
634 semantic
->expanded_bits
,
637 semantic
->nr_prefetched_words
);
642 lf_print__this_file_is_empty (file
, "generating jump engine");
647 /****************************************************************/
651 gen_icache_h (lf
*file
,
653 function_entry
*functions
,
657 for (word_nr
= 0; word_nr
<= max_nr_words
; word_nr
++)
659 lf_printf (file
, "typedef ");
660 print_icache_function_type(file
);
661 lf_printf (file
, " %sidecode_icache_%d\n(",
662 options
.prefix
.global
.name
,
664 print_icache_function_formal(file
, word_nr
);
665 lf_printf (file
, ");\n");
666 lf_printf (file
, "\n");
668 if (options
.gen
.code
== generate_calls
669 && options
.gen
.icache
)
671 function_entry_traverse (file
, functions
,
672 print_icache_internal_function_declaration
,
674 while (semantic
!= NULL
)
676 print_icache_declaration (file
,
678 semantic
->expanded_bits
,
680 semantic
->nr_prefetched_words
);
681 semantic
= semantic
->next
;
686 lf_print__this_file_is_empty (file
, "generating jump engine");
691 gen_icache_c (lf
*file
,
693 function_entry
*functions
,
694 cache_entry
*cache_rules
)
696 /* output `internal' invalid/floating-point unavailable functions
698 if (options
.gen
.code
== generate_calls
699 && options
.gen
.icache
)
701 lf_printf (file
, "\n");
702 lf_printf (file
, "#include \"cpu.h\"\n");
703 lf_printf (file
, "#include \"idecode.h\"\n");
704 lf_printf (file
, "#include \"semantics.h\"\n");
705 lf_printf (file
, "#include \"icache.h\"\n");
706 lf_printf (file
, "#include \"support.h\"\n");
707 lf_printf (file
, "\n");
708 function_entry_traverse (file
, functions
,
709 print_icache_internal_function_definition
,
711 lf_printf (file
, "\n");
712 while (semantic
!= NULL
)
714 print_icache_definition (file
,
716 semantic
->expanded_bits
,
719 semantic
->nr_prefetched_words
);
720 semantic
= semantic
->next
;
725 lf_print__this_file_is_empty (file
, "generating jump engine");
730 /****************************************************************/
734 gen_idecode_h (lf
*file
,
737 cache_entry
*cache_rules
)
739 lf_printf (file
, "typedef unsigned%d %sinstruction_word;\n",
740 options
.insn_bit_size
, options
.prefix
.global
.name
);
741 if (options
.gen
.delayed_branch
)
743 lf_printf (file
, "typedef struct _%sinstruction_address {\n",
744 options
.prefix
.global
.name
);
745 lf_printf (file
, " address_word ip; /* instruction pointer */\n");
746 lf_printf (file
, " address_word dp; /* delayed-slot pointer */\n");
747 lf_printf (file
, "} %sinstruction_address;\n", options
.prefix
.global
.name
);
751 lf_printf (file
, "typedef address_word %sinstruction_address;\n",
752 options
.prefix
.global
.name
);
755 if (options
.gen
.nia
== nia_is_invalid
756 && strlen (options
.prefix
.global
.uname
) > 0)
758 lf_indent_suppress (file
);
759 lf_printf (file
, "#define %sINVALID_INSTRUCTION_ADDRESS ",
760 options
.prefix
.global
.uname
);
761 lf_printf (file
, "INVALID_INSTRUCTION_ADDRESS\n");
763 lf_printf (file
, "\n");
764 print_icache_struct (file
, insns
, cache_rules
);
765 lf_printf (file
, "\n");
766 if (options
.gen
.icache
)
768 ERROR ("FIXME - idecode with icache suffering from bit-rot");
773 for (entry
= gen
->tables
; entry
!= NULL
; entry
= entry
->next
)
775 print_idecode_issue_function_header (file
,
778 1/*ALWAYS ONE WORD*/);
785 gen_idecode_c (lf
*file
,
788 cache_entry
*cache_rules
)
791 lf_printf (file
, "#include \"sim-main.h\"\n");
792 lf_printf (file
, "#include \"%sidecode.h\"\n", options
.prefix
.global
.name
);
793 lf_printf (file
, "#include \"%ssemantics.h\"\n", options
.prefix
.global
.name
);
794 lf_printf (file
, "#include \"%sicache.h\"\n", options
.prefix
.global
.name
);
795 lf_printf (file
, "#include \"%ssupport.h\"\n", options
.prefix
.global
.name
);
796 lf_printf (file
, "\n");
797 lf_printf (file
, "\n");
799 print_idecode_globals (file
);
800 lf_printf (file
, "\n");
802 switch (options
.gen
.code
)
807 for (entry
= gen
->tables
; entry
!= NULL
; entry
= entry
->next
)
809 print_idecode_lookups (file
, entry
->table
, cache_rules
);
811 /* output the main idecode routine */
812 if (!options
.gen
.icache
)
814 print_idecode_issue_function_header (file
,
817 1/*ALWAYS ONE WORD*/);
818 lf_printf (file
, "{\n");
819 lf_indent (file
, +2);
820 lf_printf (file
, "%sinstruction_address nia;\n",
821 options
.prefix
.global
.name
);
822 print_idecode_body (file
, entry
->table
, "nia =");
823 lf_printf (file
, "return nia;");
824 lf_indent (file
, -2);
825 lf_printf (file
, "}\n");
832 lf_print__this_file_is_empty (file
, "generating a jump engine");
839 /****************************************************************/
847 lf_printf (file
, "#include \"sim-main.h\"\n");
848 lf_printf (file
, "#include \"engine.h\"\n");
849 lf_printf (file
, "#include \"bfd.h\"\n");
850 lf_printf (file
, "\n");
851 lf_printf (file
, "void\n");
852 lf_printf (file
, "sim_engine_run (SIM_DESC sd,\n");
853 lf_printf (file
, " int next_cpu_nr,\n");
854 lf_printf (file
, " int siggnal)\n");
855 lf_printf (file
, "{\n");
856 lf_indent (file
, +2);
857 if (options
.gen
.multi_sim
)
859 lf_printf (file
, "int mach;\n");
860 lf_printf (file
, "if (STATE_ARCHITECTURE (sd) == NULL)\n");
861 lf_printf (file
, " mach = 0;\n");
862 lf_printf (file
, "else\n");
863 lf_printf (file
, " mach = STATE_ARCHITECTURE (sd)->mach;\n");
864 lf_printf (file
, "switch (mach)\n");
865 lf_printf (file
, " {\n");
866 lf_indent (file
, +2);
867 for (entry
= gen
->tables
; entry
!= NULL
; entry
= entry
->next
)
869 lf_printf (file
, "case bfd_mach_%s:\n", entry
->processor
);
870 lf_indent (file
, +2);
871 print_function_name (file
,
873 NULL
, /* format name */
875 NULL
, /* expanded bits */
876 function_name_prefix_engine
);
877 lf_printf (file
, " (sd, next_cpu_nr, siggnal);\n");
878 lf_printf (file
, "break;\n");
879 lf_indent (file
, -2);
881 lf_printf (file
, "default:\n");
882 lf_indent (file
, +2);
883 lf_printf (file
, "sim_engine_abort (sd, NULL, NULL_CIA,\n");
884 lf_printf (file
, " \"sim_engine_run - unknown machine\");\n");
885 lf_printf (file
, "break;\n");
886 lf_indent (file
, -2);
887 lf_indent (file
, -2);
888 lf_printf (file
, " }\n");
892 print_function_name (file
,
894 NULL
, /* format name */
895 NULL
, /* NO processor */
896 NULL
, /* expanded bits */
897 function_name_prefix_engine
);
898 lf_printf (file
, " (sd, next_cpu_nr, siggnal);\n");
900 lf_indent (file
, -2);
901 lf_printf (file
, "}\n");
904 /****************************************************************/
907 do_gen (insn_table
*isa
,
908 decode_table
*decode_rules
)
911 if (decode_rules
== NULL
)
912 error (NULL
, "Must specify a decode table\n");
914 error (NULL
, "Must specify an instruction table\n");
915 if (decode_table_max_word_nr (decode_rules
) > 0)
916 options
.gen
.multi_word
= decode_table_max_word_nr (decode_rules
);
917 gen
= make_gen_tables (isa
, decode_rules
);
918 gen_tables_expand_insns (gen
);
919 gen_tables_expand_semantics (gen
);
923 /****************************************************************/
925 igen_options options
;
932 cache_entry
*cache_rules
= NULL
;
933 lf_file_references file_references
= lf_include_references
;
934 decode_table
*decode_rules
= NULL
;
935 insn_table
*isa
= NULL
;
936 gen_table
*gen
= NULL
;
937 char *real_file_name
= NULL
;
940 lf
*standard_out
= lf_open ("-", "stdout", lf_omit_references
, lf_is_text
, "igen");
942 INIT_OPTIONS (options
);
948 printf (" igen <config-opts> ... <input-opts>... <output-opts>...\n");
950 printf ("Config options:\n");
952 printf (" -B <bit-size>\n");
953 printf ("\t Set the number of bits in an instruction (depreciated).\n");
954 printf ("\t This option can now be set directly in the instruction table.\n");
956 printf (" -D <data-structure>\n");
957 printf ("\t Dump the specified data structure to stdout. Valid structures include:\n");
958 printf ("\t processor-names - list the names of all the processors (models)\n");
960 printf (" -F <filter-list>\n");
961 printf ("\t Filter out any instructions with a non-empty flags field that contains\n");
962 printf ("\t a flag not listed in the <filter-list>.\n");
964 printf (" -H <high-bit>\n");
965 printf ("\t Set the number of the high (most significant) instruction bit (depreciated).\n");
966 printf ("\t This option can now be set directly in the instruction table.\n");
968 printf (" -I <icache-size>\n");
969 printf ("\t Specify size of the cracking instruction cache (default %d instructions).\n",
970 options
.gen
.icache_size
);
971 printf ("\t Implies -G icache.\n");
973 printf (" -M <model-list>\n");
974 printf ("\t Filter out any instructions that do not support at least one of the listed\n");
975 printf ("\t models (An instructions with no model information is considered to support\n");
976 printf ("\n all models.).\n");
978 printf (" -N <nr-cpus>\n");
979 printf ("\t Generate a simulator supporting <nr-cpus>\n");
980 printf ("\t Specify `-N 0' to disable generation of the SMP. Specifying `-N 1' will\n");
981 printf ("\t still generate an SMP enabled simulator but will only support one CPU.\n");
983 printf (" -T <mechanism>\n");
984 printf ("\t Override the decode mechanism specified by the decode rules\n");
986 printf (" -P <prefix>\n");
987 printf ("\t Prepend global names (except itable) with the string <prefix>.\n");
988 printf ("\t Specify -P <module>=<prefix> to set the <modules> prefix.\n");
990 printf (" -Werror\n");
991 printf ("\t Make warnings errors\n");
993 printf (" -G [!]<gen-option>\n");
994 printf ("\t Any of the following options:\n");
996 printf ("\t decode-duplicate - Override the decode rules, forcing the duplication of\n");
997 printf ("\t semantic functions\n");
998 printf ("\t decode-combine - Combine any duplicated entries within a table\n");
999 printf ("\t decode-zero-reserved - Override the decode rules, forcing reserved bits to be\n");
1000 printf ("\t treated as zero.\n");
1001 printf ("\t decode-switch-is-goto - Overfide the padded-switch code type as a goto-switch\n");
1003 printf ("\t gen-conditional-issue - conditionally issue each instruction\n");
1004 printf ("\t gen-delayed-branch - need both cia and nia passed around\n");
1005 printf ("\t gen-direct-access - use #defines to directly access values\n");
1006 printf ("\t gen-zero-r<N> - arch assumes GPR(<N>) == 0, keep it that way\n");
1007 printf ("\t gen-icache - generate an instruction cracking cache\n");
1008 printf ("\t gen-insn-in-icache - save original instruction when cracking\n");
1009 printf ("\t gen-multi-sim - generate multiple simulators - one per model\n");
1010 printf ("\t By default, a single simulator that will\n");
1011 printf ("\t execute any instruction is generated\n");
1012 printf ("\t gen-multi-word - generate code allowing for multi-word insns\n");
1013 printf ("\t gen-semantic-icache - include semantic code in cracking functions\n");
1014 printf ("\t gen-slot-verification - perform slot verification as part of decode\n");
1015 printf ("\t gen-nia-invalid - NIA defaults to nia_invalid\n");
1016 printf ("\t gen-nia-void - do not compute/return NIA\n");
1018 printf ("\t trace-combine - report combined entries a rule application\n");
1019 printf ("\t trace-entries - report entries after a rules application\n");
1020 printf ("\t trace-rule-rejection - report each rule as rejected\n");
1021 printf ("\t trace-rule-selection - report each rule as selected\n");
1023 printf ("\t field-widths - instruction formats specify widths (depreciated)\n");
1024 printf ("\t By default, an instruction format specifies bit\n");
1025 printf ("\t positions\n");
1026 printf ("\t This option can now be set directly in the\n");
1027 printf ("\t instruction table\n");
1028 printf ("\t jumps - use jumps instead of function calls\n");
1029 printf ("\t omit-line-numbers - do not include line number information in the output\n");
1031 printf ("Input options:\n");
1033 printf (" -k <cache-rules> (depreciated)\n");
1034 printf (" -o <decode-rules>\n");
1035 printf (" -i <instruction-table>\n");
1037 printf ("Output options:\n");
1039 printf (" -x Perform expansion (required)\n");
1040 printf (" -n <real-name> Specify the real name of the next output file\n");
1041 printf (" -h Generate the header (.h) file rather than the body (.c)\n");
1042 printf (" -c <output-file> output icache\n");
1043 printf (" -d <output-file> output idecode\n");
1044 printf (" -e <output-file> output engine\n");
1045 printf (" -f <output-file> output support functions\n");
1046 printf (" -m <output-file> output model\n");
1047 printf (" -r <output-file> output multi-sim run\n");
1048 printf (" -s <output-file> output schematic\n");
1049 printf (" -t <output-file> output itable\n");
1052 while ((ch
= getopt(argc
, argv
,
1053 "B:D:F:G:H:I:M:N:P:T:W:o:k:i:n:hc:d:e:m:r:s:t:f:x"))
1056 fprintf (stderr
, " -%c ", ch
);
1058 fprintf (stderr
, "%s ", optarg
);
1059 fprintf (stderr
, "\\\n");
1065 filter_parse (&options
.model_filter
, optarg
);
1069 if (strcmp (optarg
, "processor-names"))
1072 for (processor
= filter_next (options
.model_filter
, "");
1074 processor
= filter_next (options
.model_filter
, processor
))
1075 lf_printf (standard_out
, "%s\n", processor
);
1078 error (NULL
, "Unknown data structure %s, not dumped\n", optarg
);
1082 filter_parse (&options
.flags_filter
, optarg
);
1086 options
.gen
.icache_size
= a2i (optarg
);
1087 options
.gen
.icache
= 1;
1091 options
.insn_bit_size
= a2i (optarg
);
1092 if (options
.insn_bit_size
<= 0
1093 || options
.insn_bit_size
> max_insn_bit_size
)
1095 error (NULL
, "Instruction bitsize must be in range 1..%d\n",
1098 if (options
.hi_bit_nr
!= options
.insn_bit_size
- 1
1099 && options
.hi_bit_nr
!= 0)
1101 error (NULL
, "Conflict betweem hi-bit-nr and insn-bit-size\n");
1106 options
.hi_bit_nr
= a2i (optarg
);
1107 if (options
.hi_bit_nr
!= options
.insn_bit_size
- 1
1108 && options
.hi_bit_nr
!= 0)
1110 error (NULL
, "Conflict between hi-bit-nr and insn-bit-size\n");
1115 options
.gen
.smp
= a2i (optarg
);
1120 igen_prefix_name
*names
;
1122 chp
= strchr (optarg
, '=');
1125 names
= &options
.prefix
.global
;
1130 chp
= chp
+ 1; /* skip `=' */
1131 if (strncmp (optarg
, "global=", chp
- optarg
) == 0)
1133 names
= &options
.prefix
.global
;
1135 if (strncmp (optarg
, "engine=", chp
- optarg
) == 0)
1137 names
= &options
.prefix
.engine
;
1139 if (strncmp (optarg
, "icache=", chp
- optarg
) == 0)
1141 names
= &options
.prefix
.icache
;
1143 if (strncmp (optarg
, "idecode=", chp
- optarg
) == 0)
1145 names
= &options
.prefix
.idecode
;
1147 if (strncmp (optarg
, "itable=", chp
- optarg
) == 0)
1149 names
= &options
.prefix
.itable
;
1151 if (strncmp (optarg
, "semantics=", chp
- optarg
) == 0)
1153 names
= &options
.prefix
.semantics
;
1155 if (strncmp (optarg
, "support=", chp
- optarg
) == 0)
1157 names
= &options
.prefix
.support
;
1162 error (NULL
, "Prefix `%s' unreconized\n", optarg
);
1165 names
->name
= strdup (chp
);
1166 names
->uname
= strdup (chp
);
1170 *chp
= toupper(*chp
);
1173 if (names
== &options
.prefix
.global
)
1175 options
.prefix
.engine
= options
.prefix
.global
;
1176 options
.prefix
.icache
= options
.prefix
.global
;
1177 options
.prefix
.idecode
= options
.prefix
.global
;
1178 /* options.prefix.itable = options.prefix.global; */
1179 options
.prefix
.semantics
= options
.prefix
.global
;
1180 options
.prefix
.support
= options
.prefix
.global
;
1187 if (strcmp (optarg
, "error") == 0)
1188 options
.warning
= error
;
1190 error (NULL
, "Unknown -W argument `%s'\n", optarg
);
1196 if (strcmp (optarg
, "decode-duplicate") == 0)
1198 options
.decode
.duplicate
= 1;
1200 else if (strcmp (optarg
, "decode-combine") == 0)
1202 options
.decode
.combine
= 1;
1204 else if (strcmp (optarg
, "decode-zero-reserved") == 0)
1206 options
.decode
.zero_reserved
= 1;
1209 else if (strcmp (optarg
, "gen-conditional-issue") == 0)
1211 options
.gen
.conditional_issue
= 1;
1213 else if (strcmp (optarg
, "conditional-issue") == 0)
1215 options
.gen
.conditional_issue
= 1;
1216 options
.warning (NULL
, "Option conditional-issue replaced by gen-conditional-issue\n");
1218 else if (strcmp (optarg
, "gen-delayed-branch") == 0)
1220 options
.gen
.delayed_branch
= 1;
1222 else if (strcmp (optarg
, "delayed-branch") == 0)
1224 options
.gen
.delayed_branch
= 1;
1225 options
.warning (NULL
, "Option delayed-branch replaced by gen-delayed-branch\n");
1227 else if (strcmp (optarg
, "gen-direct-access") == 0)
1229 options
.gen
.direct_access
= 1;
1231 else if (strcmp (optarg
, "direct-access") == 0)
1233 options
.gen
.direct_access
= 1;
1234 options
.warning (NULL
, "Option direct-access replaced by gen-direct-access\n");
1236 else if (strncmp (optarg
, "gen-zero-r", strlen ("gen-zero-r")) == 0)
1238 options
.gen
.zero_reg
= 1;
1239 options
.gen
.zero_reg_nr
= atoi (optarg
+ strlen ("gen-zero-r"));
1241 else if (strncmp (optarg
, "zero-r", strlen ("zero-r")) == 0)
1243 options
.gen
.zero_reg
= 1;
1244 options
.gen
.zero_reg_nr
= atoi (optarg
+ strlen ("zero-r"));
1245 options
.warning (NULL
, "Option zero-r<N> replaced by gen-zero-r<N>\n");
1247 else if (strcmp (optarg
, "gen-icache") == 0)
1249 options
.gen
.icache
= 1;
1251 else if (strcmp (optarg
, "gen-insn-in-icache") == 0)
1253 options
.gen
.insn_in_icache
= 1;
1255 else if (strcmp (optarg
, "gen-multi-sim") == 0)
1257 options
.gen
.multi_sim
= 1;
1259 else if (strcmp (optarg
, "gen-multi-word") == 0)
1261 options
.gen
.multi_word
= 1;
1263 else if (strcmp (optarg
, "gen-semantic-icache") == 0)
1265 options
.gen
.semantic_icache
= 1;
1267 else if (strcmp (optarg
, "gen-slot-verification") == 0)
1269 options
.gen
.slot_verification
= 1;
1271 else if (strcmp (optarg
, "verify-slot") == 0)
1273 options
.gen
.slot_verification
= 1;
1274 options
.warning (NULL
, "Option verify-slot replaced by gen-slot-verification\n");
1276 else if (strcmp (optarg
, "gen-nia-invalid") == 0)
1278 options
.gen
.nia
= nia_is_invalid
;
1280 else if (strcmp (optarg
, "default-nia-minus-one") == 0)
1282 options
.gen
.nia
= nia_is_invalid
;
1283 options
.warning (NULL
, "Option default-nia-minus-one replaced by gen-nia-invalid\n");
1285 else if (strcmp (optarg
, "gen-nia-void") == 0)
1287 options
.gen
.nia
= nia_is_void
;
1289 else if (strcmp (optarg
, "trace-combine") == 0)
1291 options
.trace
.combine
= 1;
1293 else if (strcmp (optarg
, "trace-entries") == 0)
1295 options
.trace
.entries
= 1;
1297 else if (strcmp (optarg
, "trace-rule-rejection") == 0)
1299 options
.trace
.rule_rejection
= 1;
1301 else if (strcmp (optarg
, "trace-rule-selection") == 0)
1303 options
.trace
.rule_selection
= 1;
1305 else if (strcmp (optarg
, "jumps") == 0)
1307 options
.gen
.code
= generate_jumps
;
1309 else if (strcmp (optarg
, "field-widths") == 0)
1311 options
.insn_specifying_widths
= 1;
1313 else if (strcmp (optarg
, "omit-line-numbers") == 0)
1315 file_references
= lf_omit_references
;
1318 error (NULL
, "Unknown option %s\n", optarg
);
1322 isa
= load_insn_table (optarg
, cache_rules
);
1323 if (isa
->illegal_insn
== NULL
)
1324 error (NULL
, "illegal-instruction missing from insn table\n");
1328 gen
= do_gen (isa
, decode_rules
);
1332 decode_rules
= load_decode_table (optarg
);
1337 error (NULL
, "Cache file must appear before the insn file\n");
1338 cache_rules
= load_cache_table (optarg
);
1342 real_file_name
= strdup(optarg
);
1358 lf
*file
= lf_open(optarg
, real_file_name
, file_references
,
1359 (is_header
? lf_is_h
: lf_is_c
),
1361 if (gen
== NULL
&& ch
!= 't' && ch
!= 'm' && ch
!= 'f')
1363 options
.warning (NULL
, "Explicitly generate tables with -x option\n");
1364 gen
= do_gen (isa
, decode_rules
);
1366 lf_print__file_start(file
);
1371 gen_model_h (file
, isa
);
1373 gen_model_c (file
, isa
);
1377 gen_itable_h (file
, isa
);
1379 gen_itable_c (file
, isa
);
1383 gen_support_h (file
, isa
);
1385 gen_support_c (file
, isa
);
1389 options
.warning (NULL
, "-hr option ignored\n");
1391 gen_run_c (file
, gen
);
1395 gen_semantics_h (file
, gen
->semantics
, isa
->max_nr_words
);
1397 gen_semantics_c (file
, gen
->semantics
, isa
->caches
);
1401 gen_idecode_h (file
, gen
, isa
, cache_rules
);
1403 gen_idecode_c (file
, gen
, isa
, cache_rules
);
1407 gen_engine_h (file
, gen
, isa
, cache_rules
);
1409 gen_engine_c (file
, gen
, isa
, cache_rules
);
1424 lf_print__file_finish(file
);
1428 real_file_name
= NULL
;
1431 ERROR ("Bad switch");