1 /* This file is part of the program psim.
3 Copyright (C) 1994-1998, 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
.module
.global
.prefix
.l
);
65 nr
+= lf_printf (file
, "%sinstruction_address cia",
66 options
.module
.global
.prefix
.l
);
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
.module
.global
.prefix
.l
,
77 nr
+= lf_printf (file
, "%sinstruction_address cia",
78 options
.module
.global
.prefix
.l
);
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
.module
.global
.prefix
.l
,
89 nr
+= lf_printf (file
, "%sinstruction_address cia",
90 options
.module
.global
.prefix
.l
);
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
.module
.global
.prefix
.l
);
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
.module
.global
.prefix
.l
, word_nr
);
143 nr
+= lf_printf (file
, " %sinstruction_address cia,\n",
144 options
.module
.global
.prefix
.l
);
145 nr
+= lf_printf (file
, " %sidecode_cache *cache_entry",
146 options
.module
.global
.prefix
.l
);
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
.module
.global
.prefix
.l
);
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
.module
.semantics
.prefix
.l
);
245 nr
+= lf_printf (file
, "semantic_");
247 case function_name_prefix_idecode
:
248 nr
+= lf_printf (file
, "%s", options
.module
.idecode
.prefix
.l
);
249 nr
+= lf_printf (file
, "idecode_");
251 case function_name_prefix_itable
:
252 nr
+= lf_printf (file
, "%sitable_", options
.module
.itable
.prefix
.l
);
254 case function_name_prefix_icache
:
255 nr
+= lf_printf (file
, "%s", options
.module
.icache
.prefix
.l
);
256 nr
+= lf_printf (file
, "icache_");
258 case function_name_prefix_engine
:
259 nr
+= lf_printf (file
, "%s", options
.module
.engine
.prefix
.l
);
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
+= lf_printf (file
, "_");
278 nr
+= print_c_name (file
, format_name
);
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
)
338 const char *prefix
= "trace_prefix (";
339 int indent
= strlen (prefix
);
340 lf_printf (file
, "%sSD, CPU, cia, CIA, TRACE_LINENUM_P (CPU), \\\n", prefix
);
341 lf_indent (file
, +indent
);
342 lf_printf (file
, "%sitable[MY_INDEX].file, \\\n", options
.module
.itable
.prefix
.l
);
343 lf_printf (file
, "%sitable[MY_INDEX].line_nr, \\\n", options
.module
.itable
.prefix
.l
);
344 lf_printf (file
, "\"");
350 print_itrace_format (lf
*file
,
351 insn_mnemonic_entry
*assembler
)
353 /* pass=1 is fmt string; pass=2 is arguments */
355 /* print the format string */
356 for (pass
= 1; pass
<= 2; pass
++)
358 const char *chp
= assembler
->format
;
359 chp
++; /* skip the leading quote */
360 /* write out the format/args */
363 if (chp
[0] == '\\' && (chp
[1] == '<' || chp
[1] == '>'))
366 lf_putchr (file
, chp
[1]);
369 else if (chp
[0] == '<' || chp
[0] == '%')
371 /* parse [ "%" ... ] "<" [ func "#" ] param ">" */
377 /* the "%" ... "<" format */
379 while (chp
[0] != '<' && chp
[0] != '\0')
382 error (assembler
->line
, "Missing `<' after `%%'\n");
384 /* [ "func" # ] OR "param" */
387 while (chp
[0] != '>' && chp
[0] != '#' && chp
[0] != '\0')
389 strlen_func
= chp
- func
;
394 while (chp
[0] != '>' && chp
[0] != '\0')
397 strlen_param
= chp
- param
;
399 error (assembler
->line
, "Missing closing `>' in assembler string\n");
403 lf_printf (file
, ", \\\n");
404 if (strncmp (fmt
, "<", 1) == 0)
405 /* implicit long int format */
408 lf_printf (file
, "%%ld");
411 lf_printf (file
, "(long) ");
412 lf_write (file
, param
, strlen_param
);
415 else if (strncmp (fmt
, "%<", 2) == 0)
416 /* explicit format */
419 lf_printf (file
, "%%");
421 lf_write (file
, param
, strlen_param
);
423 else if (strncmp (fmt
, "%s<", 3) == 0)
427 lf_printf (file
, "%%s");
430 lf_printf (file
, "%sstr_", options
.module
.global
.prefix
.l
);
431 lf_write (file
, func
, strlen_func
);
432 lf_printf (file
, " (SD_, ");
433 lf_write (file
, param
, strlen_param
);
434 lf_printf (file
, ")");
437 else if (strncmp (fmt
, "%lx<", 4) == 0)
441 lf_printf (file
, "%%lx");
444 lf_printf (file
, "(unsigned long) ");
445 lf_write (file
, param
, strlen_param
);
448 else if (strncmp (fmt
, "%#lx<", 5) == 0)
449 /* simple hex with 0x prefix*/
452 lf_printf (file
, "%%#lx");
455 lf_printf (file
, "(unsigned long) ");
456 lf_write (file
, param
, strlen_param
);
459 else if (strncmp (fmt
, "%08lx<", 6) == 0)
463 lf_printf (file
, "%%08lx");
466 lf_printf (file
, "(unsigned long) ");
467 lf_write (file
, param
, strlen_param
);
471 error (assembler
->line
, "Unknown assembler string format\n");
476 lf_putchr (file
, chp
[0]);
481 lf_printf (file
, ");\n");
486 print_itrace (lf
*file
,
490 /* NB: Here we escape each EOLN. This is so that the the compiler
491 treats a trace function call as a single line. Consequently any
492 errors in the line are refered back to the same igen assembler
494 const char *phase
= (idecode
) ? "DECODE" : "INSN";
495 lf_printf (file
, "\n");
496 lf_indent_suppress (file
);
497 lf_printf (file
, "#if defined (WITH_TRACE)\n");
498 lf_printf (file
, "/* generate a trace prefix if any tracing enabled */\n");
499 lf_printf (file
, "if (TRACE_ANY_P (CPU))\n");
500 lf_printf (file
, " {\n");
501 lf_indent (file
, +4);
503 if (insn
->mnemonics
!= NULL
)
505 insn_mnemonic_entry
*assembler
= insn
->mnemonics
;
509 if (assembler
->condition
!= NULL
)
512 lf_printf (file
, "%sif (%s)\n",
513 is_first
? "" : "else ",
514 assembler
->condition
);
515 lf_indent (file
, +2);
516 lf_print__line_ref (file
, assembler
->line
);
517 indent
= print_itrace_prefix (file
);
518 print_itrace_format (file
, assembler
);
519 lf_print__internal_ref (file
);
520 lf_indent (file
, -indent
);
521 lf_indent (file
, -2);
522 if (assembler
->next
== NULL
)
523 error (assembler
->line
, "Missing final unconditional assembler\n");
530 lf_printf (file
, "else\n");
531 lf_indent (file
, +2);
533 lf_print__line_ref (file
, assembler
->line
);
534 indent
= print_itrace_prefix (file
);
535 print_itrace_format (file
, assembler
);
536 lf_print__internal_ref (file
);
537 lf_indent (file
, -indent
);
539 lf_indent (file
, -2);
540 if (assembler
->next
!= NULL
)
541 error (assembler
->line
, "Unconditional assembler is not last\n");
544 assembler
= assembler
->next
;
546 while (assembler
!= NULL
);
551 lf_indent (file
, +2);
552 lf_print__line_ref (file
, insn
->line
);
553 indent
= print_itrace_prefix (file
);
554 lf_printf (file
, "%%s\", \\\n");
555 lf_printf (file
, "itable[MY_INDEX].name);\n");
556 lf_print__internal_ref (file
);
557 lf_indent (file
, -indent
);
558 lf_indent (file
, -2);
560 lf_printf (file
, "/* trace the instruction execution if enabled */\n");
561 lf_printf (file
, "if (TRACE_%s_P (CPU))\n", phase
);
562 lf_printf (file
, " trace_generic (SD, CPU, TRACE_%s_IDX, \" %%s\", itable[MY_INDEX].name);\n", phase
);
564 lf_indent (file
, -4);
565 lf_printf (file
, " }\n");
566 lf_indent_suppress (file
);
567 lf_printf (file
, "#endif\n");
572 print_sim_engine_abort (lf
*file
,
575 lf_printf (file
, "sim_engine_abort (SD, CPU, cia, ");
576 lf_printf (file
, "\"%s\"", message
);
577 lf_printf (file
, ");\n");
582 print_include (lf
*file
,
585 lf_printf (file
, "#include \"%s%s.h\"\n", module
.prefix
.l
, module
.suffix
.l
);
589 print_include_inline (lf
*file
,
592 lf_printf (file
, "#if C_REVEALS_MODULE_P (%s_INLINE)\n", module
.suffix
.u
);
593 lf_printf (file
, "#include \"%s%s.c\"\n", module
.prefix
.l
, module
.suffix
.l
);
594 lf_printf (file
, "#else\n");
595 print_include (file
, module
);
596 lf_printf (file
, "#endif\n");
597 lf_printf (file
, "\n");
601 print_includes (lf
*file
)
603 lf_printf (file
, "\n");
604 lf_printf (file
, "#include \"sim-inline.c\"\n");
605 lf_printf (file
, "\n");
606 print_include_inline (file
, options
.module
.itable
);
607 print_include_inline (file
, options
.module
.idecode
);
608 print_include_inline (file
, options
.module
.support
);
612 /****************************************************************/
616 gen_semantics_h (lf
*file
,
617 insn_list
*semantics
,
622 for (word_nr
= -1; word_nr
<= max_nr_words
; word_nr
++)
624 lf_printf (file
, "typedef ");
625 print_semantic_function_type (file
);
626 lf_printf (file
, " %sidecode_semantic",
627 options
.module
.global
.prefix
.l
);
629 lf_printf (file
, "_%d", word_nr
);
630 lf_printf (file
, "\n(");
631 lf_indent (file
, +1);
632 print_semantic_function_formal (file
, word_nr
);
633 lf_indent (file
, -1);
634 lf_printf (file
, ");\n");
635 lf_printf (file
, "\n");
637 switch (options
.gen
.code
)
640 for (semantic
= semantics
; semantic
!= NULL
; semantic
= semantic
->next
)
642 /* Ignore any special/internal instructions */
643 if (semantic
->insn
->nr_words
== 0)
645 print_semantic_declaration (file
,
647 semantic
->expanded_bits
,
649 semantic
->nr_prefetched_words
);
653 lf_print__this_file_is_empty (file
, "generating jumps");
660 gen_semantics_c (lf
*file
,
661 insn_list
*semantics
,
662 cache_entry
*cache_rules
)
664 if (options
.gen
.code
== generate_calls
)
667 print_includes (file
);
668 print_include (file
, options
.module
.semantics
);
669 lf_printf (file
, "\n");
671 for (semantic
= semantics
; semantic
!= NULL
; semantic
= semantic
->next
)
673 /* Ignore any special/internal instructions */
674 if (semantic
->insn
->nr_words
== 0)
676 print_semantic_definition (file
,
678 semantic
->expanded_bits
,
681 semantic
->nr_prefetched_words
);
686 lf_print__this_file_is_empty (file
, "generating jump engine");
691 /****************************************************************/
695 gen_icache_h (lf
*file
,
697 function_entry
*functions
,
701 for (word_nr
= 0; word_nr
<= max_nr_words
; word_nr
++)
703 lf_printf (file
, "typedef ");
704 print_icache_function_type(file
);
705 lf_printf (file
, " %sidecode_icache_%d\n(",
706 options
.module
.global
.prefix
.l
,
708 print_icache_function_formal(file
, word_nr
);
709 lf_printf (file
, ");\n");
710 lf_printf (file
, "\n");
712 if (options
.gen
.code
== generate_calls
713 && options
.gen
.icache
)
715 function_entry_traverse (file
, functions
,
716 print_icache_internal_function_declaration
,
718 while (semantic
!= NULL
)
720 print_icache_declaration (file
,
722 semantic
->expanded_bits
,
724 semantic
->nr_prefetched_words
);
725 semantic
= semantic
->next
;
730 lf_print__this_file_is_empty (file
, "generating jump engine");
735 gen_icache_c (lf
*file
,
737 function_entry
*functions
,
738 cache_entry
*cache_rules
)
740 /* output `internal' invalid/floating-point unavailable functions
742 if (options
.gen
.code
== generate_calls
743 && options
.gen
.icache
)
745 lf_printf (file
, "\n");
746 lf_printf (file
, "#include \"cpu.h\"\n");
747 lf_printf (file
, "#include \"idecode.h\"\n");
748 lf_printf (file
, "#include \"semantics.h\"\n");
749 lf_printf (file
, "#include \"icache.h\"\n");
750 lf_printf (file
, "#include \"support.h\"\n");
751 lf_printf (file
, "\n");
752 function_entry_traverse (file
, functions
,
753 print_icache_internal_function_definition
,
755 lf_printf (file
, "\n");
756 while (semantic
!= NULL
)
758 print_icache_definition (file
,
760 semantic
->expanded_bits
,
763 semantic
->nr_prefetched_words
);
764 semantic
= semantic
->next
;
769 lf_print__this_file_is_empty (file
, "generating jump engine");
774 /****************************************************************/
778 gen_idecode_h (lf
*file
,
781 cache_entry
*cache_rules
)
783 lf_printf (file
, "typedef unsigned%d %sinstruction_word;\n",
784 options
.insn_bit_size
, options
.module
.global
.prefix
.l
);
785 if (options
.gen
.delayed_branch
)
787 lf_printf (file
, "typedef struct _%sinstruction_address {\n",
788 options
.module
.global
.prefix
.l
);
789 lf_printf (file
, " address_word ip; /* instruction pointer */\n");
790 lf_printf (file
, " address_word dp; /* delayed-slot pointer */\n");
791 lf_printf (file
, "} %sinstruction_address;\n", options
.module
.global
.prefix
.l
);
795 lf_printf (file
, "typedef address_word %sinstruction_address;\n",
796 options
.module
.global
.prefix
.l
);
799 if (options
.gen
.nia
== nia_is_invalid
800 && strlen (options
.module
.global
.prefix
.u
) > 0)
802 lf_indent_suppress (file
);
803 lf_printf (file
, "#define %sINVALID_INSTRUCTION_ADDRESS ",
804 options
.module
.global
.prefix
.u
);
805 lf_printf (file
, "INVALID_INSTRUCTION_ADDRESS\n");
807 lf_printf (file
, "\n");
808 print_icache_struct (file
, insns
, cache_rules
);
809 lf_printf (file
, "\n");
810 if (options
.gen
.icache
)
812 ERROR ("FIXME - idecode with icache suffering from bit-rot");
817 for (entry
= gen
->tables
; entry
!= NULL
; entry
= entry
->next
)
819 print_idecode_issue_function_header (file
,
820 (options
.gen
.multi_sim
823 is_function_declaration
,
824 1/*ALWAYS ONE WORD*/);
826 if (options
.gen
.multi_sim
)
828 print_idecode_issue_function_header (file
,
830 is_function_variable
,
831 1/*ALWAYS ONE WORD*/);
838 gen_idecode_c (lf
*file
,
841 cache_entry
*cache_rules
)
844 print_includes (file
);
845 print_include_inline (file
, options
.module
.semantics
);
846 lf_printf (file
, "\n");
848 print_idecode_globals (file
);
849 lf_printf (file
, "\n");
851 switch (options
.gen
.code
)
856 for (entry
= gen
->tables
; entry
!= NULL
; entry
= entry
->next
)
858 print_idecode_lookups (file
, entry
->table
, cache_rules
);
860 /* output the main idecode routine */
861 if (!options
.gen
.icache
)
863 print_idecode_issue_function_header (file
,
864 (options
.gen
.multi_sim
868 1/*ALWAYS ONE WORD*/);
869 lf_printf (file
, "{\n");
870 lf_indent (file
, +2);
871 lf_printf (file
, "%sinstruction_address nia;\n",
872 options
.module
.global
.prefix
.l
);
873 print_idecode_body (file
, entry
->table
, "nia =");
874 lf_printf (file
, "return nia;");
875 lf_indent (file
, -2);
876 lf_printf (file
, "}\n");
883 lf_print__this_file_is_empty (file
, "generating a jump engine");
890 /****************************************************************/
898 lf_printf (file
, "#include \"sim-main.h\"\n");
899 lf_printf (file
, "#include \"engine.h\"\n");
900 lf_printf (file
, "#include \"idecode.h\"\n");
901 lf_printf (file
, "#include \"bfd.h\"\n");
902 lf_printf (file
, "\n");
904 if (options
.gen
.multi_sim
)
906 print_idecode_issue_function_header (file
, NULL
, is_function_variable
, 1);
907 lf_printf (file
, "\n");
908 print_engine_run_function_header (file
, NULL
, is_function_variable
);
909 lf_printf (file
, "\n");
912 lf_printf (file
, "void\n");
913 lf_printf (file
, "sim_engine_run (SIM_DESC sd,\n");
914 lf_printf (file
, " int next_cpu_nr,\n");
915 lf_printf (file
, " int nr_cpus,\n");
916 lf_printf (file
, " int siggnal)\n");
917 lf_printf (file
, "{\n");
918 lf_indent (file
, +2);
919 if (options
.gen
.multi_sim
)
921 lf_printf (file
, "int mach;\n");
922 lf_printf (file
, "if (STATE_ARCHITECTURE (sd) == NULL)\n");
923 lf_printf (file
, " mach = 0;\n");
924 lf_printf (file
, "else\n");
925 lf_printf (file
, " mach = STATE_ARCHITECTURE (sd)->mach;\n");
926 lf_printf (file
, "switch (mach)\n");
927 lf_printf (file
, " {\n");
928 lf_indent (file
, +2);
929 for (entry
= gen
->tables
; entry
!= NULL
; entry
= entry
->next
)
931 if (options
.gen
.default_model
!= NULL
932 && (strcmp (entry
->model
->name
, options
.gen
.default_model
) == 0
933 || strcmp (entry
->model
->full_name
, options
.gen
.default_model
) == 0))
934 lf_printf (file
, "default:\n");
935 lf_printf (file
, "case bfd_mach_%s:\n", entry
->model
->full_name
);
936 lf_indent (file
, +2);
937 print_function_name (file
,
939 NULL
, /* format name */
940 NULL
, /* NO processor */
941 NULL
, /* expanded bits */
942 function_name_prefix_idecode
);
943 lf_printf (file
, " = ");
944 print_function_name (file
,
946 NULL
, /* format name */
948 NULL
, /* expanded bits */
949 function_name_prefix_idecode
);
950 lf_printf (file
, ";\n");
951 print_function_name (file
,
953 NULL
, /* format name */
954 NULL
, /* NO processor */
955 NULL
, /* expanded bits */
956 function_name_prefix_engine
);
957 lf_printf (file
, " = ");
958 print_function_name (file
,
960 NULL
, /* format name */
962 NULL
, /* expanded bits */
963 function_name_prefix_engine
);
964 lf_printf (file
, ";\n");
965 lf_printf (file
, "break;\n");
966 lf_indent (file
, -2);
968 if (options
.gen
.default_model
== NULL
)
970 lf_printf (file
, "default:\n");
971 lf_indent (file
, +2);
972 lf_printf (file
, "sim_engine_abort (sd, NULL, NULL_CIA,\n");
973 lf_printf (file
, " \"sim_engine_run - unknown machine\");\n");
974 lf_printf (file
, "break;\n");
975 lf_indent (file
, -2);
977 lf_indent (file
, -2);
978 lf_printf (file
, " }\n");
980 print_function_name (file
,
982 NULL
, /* format name */
983 NULL
, /* NO processor */
984 NULL
, /* expanded bits */
985 function_name_prefix_engine
);
986 lf_printf (file
, " (sd, next_cpu_nr, nr_cpus, siggnal);\n");
987 lf_indent (file
, -2);
988 lf_printf (file
, "}\n");
991 /****************************************************************/
994 do_gen (insn_table
*isa
,
995 decode_table
*decode_rules
)
998 if (decode_rules
== NULL
)
999 error (NULL
, "Must specify a decode table\n");
1001 error (NULL
, "Must specify an instruction table\n");
1002 if (decode_table_max_word_nr (decode_rules
) > 0)
1003 options
.gen
.multi_word
= decode_table_max_word_nr (decode_rules
);
1004 gen
= make_gen_tables (isa
, decode_rules
);
1005 gen_tables_expand_insns (gen
);
1006 gen_tables_expand_semantics (gen
);
1010 /****************************************************************/
1012 igen_options options
;
1019 cache_entry
*cache_rules
= NULL
;
1020 lf_file_references file_references
= lf_include_references
;
1021 decode_table
*decode_rules
= NULL
;
1022 insn_table
*isa
= NULL
;
1023 gen_table
*gen
= NULL
;
1024 char *real_file_name
= NULL
;
1027 lf
*standard_out
= lf_open ("-", "stdout", lf_omit_references
, lf_is_text
, "igen");
1033 printf ("Usage:\n");
1035 printf (" igen <config-opts> ... <input-opts>... <output-opts>...\n");
1037 printf ("Config options:\n");
1039 printf (" -B <bit-size>\n");
1040 printf ("\t Set the number of bits in an instruction (depreciated).\n");
1041 printf ("\t This option can now be set directly in the instruction table.\n");
1043 printf (" -D <data-structure>\n");
1044 printf ("\t Dump the specified data structure to stdout. Valid structures include:\n");
1045 printf ("\t processor-names - list the names of all the processors (models)\n");
1047 printf (" -F <filter-list>\n");
1048 printf ("\t Filter out any instructions with a non-empty flags field that contains\n");
1049 printf ("\t a flag not listed in the <filter-list>.\n");
1051 printf (" -H <high-bit>\n");
1052 printf ("\t Set the number of the high (most significant) instruction bit (depreciated).\n");
1053 printf ("\t This option can now be set directly in the instruction table.\n");
1055 printf (" -I <directory>\n");
1056 printf ("\t Add <directory> to the list of directories searched when opening a file\n");
1058 printf (" -M <model-list>\n");
1059 printf ("\t Filter out any instructions that do not support at least one of the listed\n");
1060 printf ("\t models (An instructions with no model information is considered to support\n");
1061 printf ("\t all models.).\n");
1063 printf (" -N <nr-cpus>\n");
1064 printf ("\t Generate a simulator supporting <nr-cpus>\n");
1065 printf ("\t Specify `-N 0' to disable generation of the SMP. Specifying `-N 1' will\n");
1066 printf ("\t still generate an SMP enabled simulator but will only support one CPU.\n");
1068 printf (" -T <mechanism>\n");
1069 printf ("\t Override the decode mechanism specified by the decode rules\n");
1071 printf (" -P <prefix>\n");
1072 printf ("\t Prepend global names (except itable) with the string <prefix>.\n");
1073 printf ("\t Specify -P <module>=<prefix> to set a specific <module>'s prefix.\n");
1075 printf (" -S <suffix>\n");
1076 printf ("\t Replace a global name (suffix) (except itable) with the string <suffix>.\n");
1077 printf ("\t Specify -S <module>=<suffix> to change a specific <module>'s name (suffix).\n");
1079 printf (" -Werror\n");
1080 printf ("\t Make warnings errors\n");
1081 printf (" -Wnodiscard\n");
1082 printf ("\t Suppress warnings about discarded functions and instructions\n");
1083 printf (" -Wnowidth\n");
1084 printf ("\t Suppress warnings about instructions with invalid widths\n");
1085 printf (" -Wnounimplemented\n");
1086 printf ("\t Suppress warnings about unimplemented instructions\n");
1088 printf (" -G [!]<gen-option>\n");
1089 printf ("\t Any of the following options:\n");
1091 printf ("\t decode-duplicate - Override the decode rules, forcing the duplication of\n");
1092 printf ("\t semantic functions\n");
1093 printf ("\t decode-combine - Combine any duplicated entries within a table\n");
1094 printf ("\t decode-zero-reserved - Override the decode rules, forcing reserved bits to be\n");
1095 printf ("\t treated as zero.\n");
1096 printf ("\t decode-switch-is-goto - Overfide the padded-switch code type as a goto-switch\n");
1098 printf ("\t gen-conditional-issue - conditionally issue each instruction\n");
1099 printf ("\t gen-delayed-branch - need both cia and nia passed around\n");
1100 printf ("\t gen-direct-access - use #defines to directly access values\n");
1101 printf ("\t gen-zero-r<N> - arch assumes GPR(<N>) == 0, keep it that way\n");
1102 printf ("\t gen-icache[=<N> - generate an instruction cracking cache of size <N>\n");
1103 printf ("\t Default size is %d\n", options
.gen
.icache_size
);
1104 printf ("\t gen-insn-in-icache - save original instruction when cracking\n");
1105 printf ("\t gen-multi-sim[=MODEL] - generate multiple simulators - one per model\n");
1106 printf ("\t If specified MODEL is made the default architecture.\n");
1107 printf ("\t By default, a single simulator that will\n");
1108 printf ("\t execute any instruction is generated\n");
1109 printf ("\t gen-multi-word - generate code allowing for multi-word insns\n");
1110 printf ("\t gen-semantic-icache - include semantic code in cracking functions\n");
1111 printf ("\t gen-slot-verification - perform slot verification as part of decode\n");
1112 printf ("\t gen-nia-invalid - NIA defaults to nia_invalid\n");
1113 printf ("\t gen-nia-void - do not compute/return NIA\n");
1115 printf ("\t trace-combine - report combined entries a rule application\n");
1116 printf ("\t trace-entries - report entries after a rules application\n");
1117 printf ("\t trace-rule-rejection - report each rule as rejected\n");
1118 printf ("\t trace-rule-selection - report each rule as selected\n");
1119 printf ("\t trace-insn-insertion - report each instruction as it is inserted into a decode table\n");
1120 printf ("\t trace-rule-expansion - report each instruction as it is expanded (before insertion into a decode table)\n");
1121 printf ("\t trace-all - enable all trace options\n");
1123 printf ("\t field-widths - instruction formats specify widths (depreciated)\n");
1124 printf ("\t By default, an instruction format specifies bit\n");
1125 printf ("\t positions\n");
1126 printf ("\t This option can now be set directly in the\n");
1127 printf ("\t instruction table\n");
1128 printf ("\t jumps - use jumps instead of function calls\n");
1129 printf ("\t omit-line-numbers - do not include line number information in the output\n");
1131 printf ("Input options:\n");
1133 printf (" -k <cache-rules> (depreciated)\n");
1134 printf (" -o <decode-rules>\n");
1135 printf (" -i <instruction-table>\n");
1137 printf ("Output options:\n");
1139 printf (" -x Perform expansion (required)\n");
1140 printf (" -n <real-name> Specify the real name of the next output file\n");
1141 printf (" -h Generate the header (.h) file rather than the body (.c)\n");
1142 printf (" -c <output-file> output icache\n");
1143 printf (" -d <output-file> output idecode\n");
1144 printf (" -e <output-file> output engine\n");
1145 printf (" -f <output-file> output support functions\n");
1146 printf (" -m <output-file> output model\n");
1147 printf (" -r <output-file> output multi-sim run\n");
1148 printf (" -s <output-file> output schematic\n");
1149 printf (" -t <output-file> output itable\n");
1152 while ((ch
= getopt(argc
, argv
,
1153 "B:D:F:G:H:I:M:N:P:T:W:o:k:i:n:hc:d:e:m:r:s:t:f:x"))
1156 fprintf (stderr
, " -%c ", ch
);
1158 fprintf (stderr
, "%s ", optarg
);
1159 fprintf (stderr
, "\\\n");
1165 filter_parse (&options
.model_filter
, optarg
);
1169 if (strcmp (optarg
, "processor-names"))
1172 for (processor
= filter_next (options
.model_filter
, "");
1174 processor
= filter_next (options
.model_filter
, processor
))
1175 lf_printf (standard_out
, "%s\n", processor
);
1178 error (NULL
, "Unknown data structure %s, not dumped\n", optarg
);
1182 filter_parse (&options
.flags_filter
, optarg
);
1187 table_include
**dir
= &options
.include
;
1188 while ((*dir
) != NULL
)
1189 dir
= &(*dir
)->next
;
1190 (*dir
) = ZALLOC (table_include
);
1191 (*dir
)->dir
= strdup (optarg
);
1196 options
.insn_bit_size
= a2i (optarg
);
1197 if (options
.insn_bit_size
<= 0
1198 || options
.insn_bit_size
> max_insn_bit_size
)
1200 error (NULL
, "Instruction bitsize must be in range 1..%d\n",
1203 if (options
.hi_bit_nr
!= options
.insn_bit_size
- 1
1204 && options
.hi_bit_nr
!= 0)
1206 error (NULL
, "Conflict betweem hi-bit-nr and insn-bit-size\n");
1211 options
.hi_bit_nr
= a2i (optarg
);
1212 if (options
.hi_bit_nr
!= options
.insn_bit_size
- 1
1213 && options
.hi_bit_nr
!= 0)
1215 error (NULL
, "Conflict between hi-bit-nr and insn-bit-size\n");
1220 options
.gen
.smp
= a2i (optarg
);
1229 chp
= strchr (optarg
, '=');
1232 names
= &options
.module
.global
;
1237 chp
= chp
+ 1; /* skip `=' */
1239 if (strncmp (optarg
, "global=", chp
- optarg
) == 0)
1241 names
= &options
.module
.global
;
1243 if (strncmp (optarg
, "engine=", chp
- optarg
) == 0)
1245 names
= &options
.module
.engine
;
1247 if (strncmp (optarg
, "icache=", chp
- optarg
) == 0)
1249 names
= &options
.module
.icache
;
1251 if (strncmp (optarg
, "idecode=", chp
- optarg
) == 0)
1253 names
= &options
.module
.idecode
;
1255 if (strncmp (optarg
, "itable=", chp
- optarg
) == 0)
1257 names
= &options
.module
.itable
;
1259 if (strncmp (optarg
, "semantics=", chp
- optarg
) == 0)
1261 names
= &options
.module
.semantics
;
1263 if (strncmp (optarg
, "support=", chp
- optarg
) == 0)
1265 names
= &options
.module
.support
;
1269 error (NULL
, "Prefix `%s' unreconized\n", optarg
);
1275 name
= &names
->prefix
;
1278 name
= &names
->suffix
;
1281 name
->u
= strdup (chp
);
1282 name
->l
= strdup (chp
);
1286 *chp
= toupper(*chp
);
1289 if (name
== &options
.module
.global
.prefix
)
1291 options
.module
.engine
.prefix
= options
.module
.global
.prefix
;
1292 options
.module
.icache
.prefix
= options
.module
.global
.prefix
;
1293 options
.module
.idecode
.prefix
= options
.module
.global
.prefix
;
1294 /* options.module.itable.prefix = options.module.global.prefix; */
1295 options
.module
.semantics
.prefix
= options
.module
.global
.prefix
;
1296 options
.module
.support
.prefix
= options
.module
.global
.prefix
;
1298 if (name
== &options
.module
.global
.suffix
)
1300 options
.module
.engine
.suffix
= options
.module
.global
.suffix
;
1301 options
.module
.icache
.suffix
= options
.module
.global
.suffix
;
1302 options
.module
.idecode
.suffix
= options
.module
.global
.suffix
;
1303 /* options.module.itable.suffix = options.module.global.suffix; */
1304 options
.module
.semantics
.suffix
= options
.module
.global
.suffix
;
1305 options
.module
.support
.suffix
= options
.module
.global
.suffix
;
1312 if (strcmp (optarg
, "error") == 0)
1313 options
.warning
= error
;
1314 else if (strcmp (optarg
, "nodiscard") == 0)
1315 options
.warn
.discard
= 0;
1316 else if (strcmp (optarg
, "discard") == 0)
1317 options
.warn
.discard
= 1;
1318 else if (strcmp (optarg
, "nowidth") == 0)
1319 options
.warn
.width
= 0;
1320 else if (strcmp (optarg
, "width") == 0)
1321 options
.warn
.width
= 1;
1322 else if (strcmp (optarg
, "nounimplemented") == 0)
1323 options
.warn
.unimplemented
= 0;
1324 else if (strcmp (optarg
, "unimplemented") == 0)
1325 options
.warn
.unimplemented
= 1;
1327 error (NULL
, "Unknown -W argument `%s'\n", optarg
);
1336 if (strncmp (optarg
, "no-", strlen ("no-")) == 0)
1338 argp
= optarg
+ strlen ("no-");
1341 else if (strncmp (optarg
, "!", strlen ("!")) == 0)
1343 argp
= optarg
+ strlen ("no-");
1351 if (strcmp (argp
, "decode-duplicate") == 0)
1353 options
.decode
.duplicate
= enable_p
;
1355 else if (strcmp (argp
, "decode-combine") == 0)
1357 options
.decode
.combine
= enable_p
;
1359 else if (strcmp (argp
, "decode-zero-reserved") == 0)
1361 options
.decode
.zero_reserved
= enable_p
;
1364 else if (strcmp (argp
, "gen-conditional-issue") == 0)
1366 options
.gen
.conditional_issue
= enable_p
;
1368 else if (strcmp (argp
, "conditional-issue") == 0)
1370 options
.gen
.conditional_issue
= enable_p
;
1371 options
.warning (NULL
, "Option conditional-issue replaced by gen-conditional-issue\n");
1373 else if (strcmp (argp
, "gen-delayed-branch") == 0)
1375 options
.gen
.delayed_branch
= enable_p
;
1377 else if (strcmp (argp
, "delayed-branch") == 0)
1379 options
.gen
.delayed_branch
= enable_p
;
1380 options
.warning (NULL
, "Option delayed-branch replaced by gen-delayed-branch\n");
1382 else if (strcmp (argp
, "gen-direct-access") == 0)
1384 options
.gen
.direct_access
= enable_p
;
1386 else if (strcmp (argp
, "direct-access") == 0)
1388 options
.gen
.direct_access
= enable_p
;
1389 options
.warning (NULL
, "Option direct-access replaced by gen-direct-access\n");
1391 else if (strncmp (argp
, "gen-zero-r", strlen ("gen-zero-r")) == 0)
1393 options
.gen
.zero_reg
= enable_p
;
1394 options
.gen
.zero_reg_nr
= atoi (argp
+ strlen ("gen-zero-r"));
1396 else if (strncmp (argp
, "zero-r", strlen ("zero-r")) == 0)
1398 options
.gen
.zero_reg
= enable_p
;
1399 options
.gen
.zero_reg_nr
= atoi (argp
+ strlen ("zero-r"));
1400 options
.warning (NULL
, "Option zero-r<N> replaced by gen-zero-r<N>\n");
1402 else if (strncmp (argp
, "gen-icache", strlen ("gen-icache")) == 0)
1404 switch (argp
[strlen ("gen-icache")])
1407 options
.gen
.icache_size
= atoi (argp
+ strlen ("gen-icache") + 1);
1408 options
.gen
.icache
= enable_p
;
1411 options
.gen
.icache
= enable_p
;
1414 error (NULL
, "Expecting -Ggen-icache or -Ggen-icache=<N>\n");
1417 else if (strcmp (argp
, "gen-insn-in-icache") == 0)
1419 options
.gen
.insn_in_icache
= enable_p
;
1421 else if (strncmp (argp
, "gen-multi-sim", strlen ("gen-multi-sim")) == 0)
1423 char *arg
= &argp
[strlen ("gen-multi-sim")];
1427 options
.gen
.multi_sim
= enable_p
;
1428 options
.gen
.default_model
= arg
+ 1;
1429 if (! filter_is_member (options
.model_filter
, options
.gen
.default_model
))
1430 error (NULL
, "multi-sim model %s unknown\n", options
.gen
.default_model
);
1433 options
.gen
.multi_sim
= enable_p
;
1434 options
.gen
.default_model
= NULL
;
1437 error (NULL
, "Expecting -Ggen-multi-sim or -Ggen-multi-sim=<MODEL>\n");
1441 else if (strcmp (argp
, "gen-multi-word") == 0)
1443 options
.gen
.multi_word
= enable_p
;
1445 else if (strcmp (argp
, "gen-semantic-icache") == 0)
1447 options
.gen
.semantic_icache
= enable_p
;
1449 else if (strcmp (argp
, "gen-slot-verification") == 0)
1451 options
.gen
.slot_verification
= enable_p
;
1453 else if (strcmp (argp
, "verify-slot") == 0)
1455 options
.gen
.slot_verification
= enable_p
;
1456 options
.warning (NULL
, "Option verify-slot replaced by gen-slot-verification\n");
1458 else if (strcmp (argp
, "gen-nia-invalid") == 0)
1460 options
.gen
.nia
= nia_is_invalid
;
1462 else if (strcmp (argp
, "default-nia-minus-one") == 0)
1464 options
.gen
.nia
= nia_is_invalid
;
1465 options
.warning (NULL
, "Option default-nia-minus-one replaced by gen-nia-invalid\n");
1467 else if (strcmp (argp
, "gen-nia-void") == 0)
1469 options
.gen
.nia
= nia_is_void
;
1471 else if (strcmp (argp
, "trace-all") == 0)
1473 memset (&options
.trace
, enable_p
, sizeof (options
.trace
));
1475 else if (strcmp (argp
, "trace-combine") == 0)
1477 options
.trace
.combine
= enable_p
;
1479 else if (strcmp (argp
, "trace-entries") == 0)
1481 options
.trace
.entries
= enable_p
;
1483 else if (strcmp (argp
, "trace-rule-rejection") == 0)
1485 options
.trace
.rule_rejection
= enable_p
;
1487 else if (strcmp (argp
, "trace-rule-selection") == 0)
1489 options
.trace
.rule_selection
= enable_p
;
1491 else if (strcmp (argp
, "trace-insn-insertion") == 0)
1493 options
.trace
.insn_insertion
= enable_p
;
1495 else if (strcmp (argp
, "trace-insn-expansion") == 0)
1497 options
.trace
.insn_expansion
= enable_p
;
1499 else if (strcmp (argp
, "jumps") == 0)
1501 options
.gen
.code
= generate_jumps
;
1503 else if (strcmp (argp
, "field-widths") == 0)
1505 options
.insn_specifying_widths
= enable_p
;
1507 else if (strcmp (argp
, "omit-line-numbers") == 0)
1509 file_references
= lf_omit_references
;
1513 error (NULL
, "Unknown option %s\n", optarg
);
1519 isa
= load_insn_table (optarg
, cache_rules
);
1520 if (isa
->illegal_insn
== NULL
)
1521 error (NULL
, "illegal-instruction missing from insn table\n");
1525 gen
= do_gen (isa
, decode_rules
);
1529 decode_rules
= load_decode_table (optarg
);
1534 error (NULL
, "Cache file must appear before the insn file\n");
1535 cache_rules
= load_cache_table (optarg
);
1539 real_file_name
= strdup(optarg
);
1555 lf
*file
= lf_open(optarg
, real_file_name
, file_references
,
1556 (is_header
? lf_is_h
: lf_is_c
),
1558 if (gen
== NULL
&& ch
!= 't' && ch
!= 'm' && ch
!= 'f')
1560 options
.warning (NULL
, "Explicitly generate tables with -x option\n");
1561 gen
= do_gen (isa
, decode_rules
);
1563 lf_print__file_start(file
);
1568 gen_model_h (file
, isa
);
1570 gen_model_c (file
, isa
);
1574 gen_itable_h (file
, isa
);
1576 gen_itable_c (file
, isa
);
1580 gen_support_h (file
, isa
);
1582 gen_support_c (file
, isa
);
1586 options
.warning (NULL
, "-hr option ignored\n");
1588 gen_run_c (file
, gen
);
1592 gen_semantics_h (file
, gen
->semantics
, isa
->max_nr_words
);
1594 gen_semantics_c (file
, gen
->semantics
, isa
->caches
);
1598 gen_idecode_h (file
, gen
, isa
, cache_rules
);
1600 gen_idecode_c (file
, gen
, isa
, cache_rules
);
1604 gen_engine_h (file
, gen
, isa
, cache_rules
);
1606 gen_engine_c (file
, gen
, isa
, cache_rules
);
1621 lf_print__file_finish(file
);
1625 real_file_name
= NULL
;
1628 ERROR ("Bad switch");