1 /* DO NOT EDIT! -*- buffer-read-only: t -*- vi:set ro: */
2 /* Disassembler interface for targets using CGEN. -*- C -*-
3 CGEN: Cpu tools GENerator
5 THIS FILE IS MACHINE GENERATED WITH CGEN.
6 - the resultant file is machine generated, cgen-dis.in isn't
8 Copyright (C) 1996-2019 Free Software Foundation, Inc.
10 This file is part of libopcodes.
12 This library is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 3, or (at your option)
17 It is distributed in the hope that it will be useful, but WITHOUT
18 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
19 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
20 License for more details.
22 You should have received a copy of the GNU General Public License
23 along with this program; if not, write to the Free Software Foundation, Inc.,
24 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
26 /* ??? Eventually more and more of this stuff can go to cpu-independent files.
32 #include "disassemble.h"
35 #include "libiberty.h"
40 /* Default text to print if an instruction isn't recognized. */
41 #define UNKNOWN_INSN_MSG _("*unknown*")
43 static void print_normal
44 (CGEN_CPU_DESC, void *, long, unsigned int, bfd_vma, int);
45 static void print_address
46 (CGEN_CPU_DESC, void *, bfd_vma, unsigned int, bfd_vma, int) ATTRIBUTE_UNUSED;
47 static void print_keyword
48 (CGEN_CPU_DESC, void *, CGEN_KEYWORD *, long, unsigned int) ATTRIBUTE_UNUSED;
49 static void print_insn_normal
50 (CGEN_CPU_DESC, void *, const CGEN_INSN *, CGEN_FIELDS *, bfd_vma, int);
52 (CGEN_CPU_DESC, bfd_vma, disassemble_info *, bfd_byte *, unsigned);
53 static int default_print_insn
54 (CGEN_CPU_DESC, bfd_vma, disassemble_info *) ATTRIBUTE_UNUSED;
56 (CGEN_CPU_DESC, bfd_vma, disassemble_info *, bfd_byte *, int, CGEN_EXTRACT_INFO *,
59 /* -- disassembler routines inserted here. */
62 static void print_dollarhex (CGEN_CPU_DESC, PTR, long, unsigned, bfd_vma, int);
63 static void print_pcrel (CGEN_CPU_DESC, PTR, long, unsigned, bfd_vma, int);
66 print_dollarhex (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
69 unsigned int attrs ATTRIBUTE_UNUSED,
70 bfd_vma pc ATTRIBUTE_UNUSED,
71 int length ATTRIBUTE_UNUSED)
73 disassemble_info *info = (disassemble_info *) dis_info;
75 info->fprintf_func (info->stream, "$%lx", value & 0xffffffff);
78 print_normal (cd, dis_info, value, attrs, pc, length);
82 print_pcrel (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
85 unsigned int attrs ATTRIBUTE_UNUSED,
86 bfd_vma pc ATTRIBUTE_UNUSED,
87 int length ATTRIBUTE_UNUSED)
89 print_address (cd, dis_info, value + pc, attrs, pc, length);
94 void mt_cgen_print_operand
95 (CGEN_CPU_DESC, int, PTR, CGEN_FIELDS *, void const *, bfd_vma, int);
97 /* Main entry point for printing operands.
98 XINFO is a `void *' and not a `disassemble_info *' to not put a requirement
99 of dis-asm.h on cgen.h.
101 This function is basically just a big switch statement. Earlier versions
102 used tables to look up the function to use, but
103 - if the table contains both assembler and disassembler functions then
104 the disassembler contains much of the assembler and vice-versa,
105 - there's a lot of inlining possibilities as things grow,
106 - using a switch statement avoids the function call overhead.
108 This function could be moved into `print_insn_normal', but keeping it
109 separate makes clear the interface between `print_insn_normal' and each of
113 mt_cgen_print_operand (CGEN_CPU_DESC cd,
117 void const *attrs ATTRIBUTE_UNUSED,
121 disassemble_info *info = (disassemble_info *) xinfo;
125 case MT_OPERAND_A23 :
126 print_dollarhex (cd, info, fields->f_a23, 0, pc, length);
128 case MT_OPERAND_BALL :
129 print_dollarhex (cd, info, fields->f_ball, 0, pc, length);
131 case MT_OPERAND_BALL2 :
132 print_dollarhex (cd, info, fields->f_ball2, 0, pc, length);
134 case MT_OPERAND_BANKADDR :
135 print_dollarhex (cd, info, fields->f_bankaddr, 0, pc, length);
137 case MT_OPERAND_BRC :
138 print_dollarhex (cd, info, fields->f_brc, 0, pc, length);
140 case MT_OPERAND_BRC2 :
141 print_dollarhex (cd, info, fields->f_brc2, 0, pc, length);
143 case MT_OPERAND_CB1INCR :
144 print_dollarhex (cd, info, fields->f_cb1incr, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
146 case MT_OPERAND_CB1SEL :
147 print_dollarhex (cd, info, fields->f_cb1sel, 0, pc, length);
149 case MT_OPERAND_CB2INCR :
150 print_dollarhex (cd, info, fields->f_cb2incr, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
152 case MT_OPERAND_CB2SEL :
153 print_dollarhex (cd, info, fields->f_cb2sel, 0, pc, length);
155 case MT_OPERAND_CBRB :
156 print_dollarhex (cd, info, fields->f_cbrb, 0, pc, length);
158 case MT_OPERAND_CBS :
159 print_dollarhex (cd, info, fields->f_cbs, 0, pc, length);
161 case MT_OPERAND_CBX :
162 print_dollarhex (cd, info, fields->f_cbx, 0, pc, length);
164 case MT_OPERAND_CCB :
165 print_dollarhex (cd, info, fields->f_ccb, 0, pc, length);
167 case MT_OPERAND_CDB :
168 print_dollarhex (cd, info, fields->f_cdb, 0, pc, length);
170 case MT_OPERAND_CELL :
171 print_dollarhex (cd, info, fields->f_cell, 0, pc, length);
173 case MT_OPERAND_COLNUM :
174 print_dollarhex (cd, info, fields->f_colnum, 0, pc, length);
176 case MT_OPERAND_CONTNUM :
177 print_dollarhex (cd, info, fields->f_contnum, 0, pc, length);
180 print_dollarhex (cd, info, fields->f_cr, 0, pc, length);
182 case MT_OPERAND_CTXDISP :
183 print_dollarhex (cd, info, fields->f_ctxdisp, 0, pc, length);
185 case MT_OPERAND_DUP :
186 print_dollarhex (cd, info, fields->f_dup, 0, pc, length);
188 case MT_OPERAND_FBDISP :
189 print_dollarhex (cd, info, fields->f_fbdisp, 0, pc, length);
191 case MT_OPERAND_FBINCR :
192 print_dollarhex (cd, info, fields->f_fbincr, 0, pc, length);
194 case MT_OPERAND_FRDR :
195 print_keyword (cd, info, & mt_cgen_opval_h_spr, fields->f_dr, 0|(1<<CGEN_OPERAND_ABS_ADDR));
197 case MT_OPERAND_FRDRRR :
198 print_keyword (cd, info, & mt_cgen_opval_h_spr, fields->f_drrr, 0|(1<<CGEN_OPERAND_ABS_ADDR));
200 case MT_OPERAND_FRSR1 :
201 print_keyword (cd, info, & mt_cgen_opval_h_spr, fields->f_sr1, 0|(1<<CGEN_OPERAND_ABS_ADDR));
203 case MT_OPERAND_FRSR2 :
204 print_keyword (cd, info, & mt_cgen_opval_h_spr, fields->f_sr2, 0|(1<<CGEN_OPERAND_ABS_ADDR));
207 print_dollarhex (cd, info, fields->f_id, 0, pc, length);
209 case MT_OPERAND_IMM16 :
210 print_dollarhex (cd, info, fields->f_imm16s, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
212 case MT_OPERAND_IMM16L :
213 print_dollarhex (cd, info, fields->f_imm16l, 0, pc, length);
215 case MT_OPERAND_IMM16O :
216 print_pcrel (cd, info, fields->f_imm16s, 0|(1<<CGEN_OPERAND_PCREL_ADDR), pc, length);
218 case MT_OPERAND_IMM16Z :
219 print_dollarhex (cd, info, fields->f_imm16u, 0, pc, length);
221 case MT_OPERAND_INCAMT :
222 print_dollarhex (cd, info, fields->f_incamt, 0, pc, length);
224 case MT_OPERAND_INCR :
225 print_dollarhex (cd, info, fields->f_incr, 0, pc, length);
227 case MT_OPERAND_LENGTH :
228 print_dollarhex (cd, info, fields->f_length, 0, pc, length);
230 case MT_OPERAND_LOOPSIZE :
231 print_pcrel (cd, info, fields->f_loopo, 0|(1<<CGEN_OPERAND_PCREL_ADDR), pc, length);
233 case MT_OPERAND_MASK :
234 print_dollarhex (cd, info, fields->f_mask, 0, pc, length);
236 case MT_OPERAND_MASK1 :
237 print_dollarhex (cd, info, fields->f_mask1, 0, pc, length);
239 case MT_OPERAND_MODE :
240 print_dollarhex (cd, info, fields->f_mode, 0, pc, length);
242 case MT_OPERAND_PERM :
243 print_dollarhex (cd, info, fields->f_perm, 0, pc, length);
245 case MT_OPERAND_RBBC :
246 print_dollarhex (cd, info, fields->f_rbbc, 0, pc, length);
249 print_dollarhex (cd, info, fields->f_rc, 0, pc, length);
251 case MT_OPERAND_RC1 :
252 print_dollarhex (cd, info, fields->f_rc1, 0, pc, length);
254 case MT_OPERAND_RC2 :
255 print_dollarhex (cd, info, fields->f_rc2, 0, pc, length);
257 case MT_OPERAND_RC3 :
258 print_dollarhex (cd, info, fields->f_rc3, 0, pc, length);
260 case MT_OPERAND_RCNUM :
261 print_dollarhex (cd, info, fields->f_rcnum, 0, pc, length);
263 case MT_OPERAND_RDA :
264 print_dollarhex (cd, info, fields->f_rda, 0, pc, length);
266 case MT_OPERAND_ROWNUM :
267 print_dollarhex (cd, info, fields->f_rownum, 0, pc, length);
269 case MT_OPERAND_ROWNUM1 :
270 print_dollarhex (cd, info, fields->f_rownum1, 0, pc, length);
272 case MT_OPERAND_ROWNUM2 :
273 print_dollarhex (cd, info, fields->f_rownum2, 0, pc, length);
275 case MT_OPERAND_SIZE :
276 print_dollarhex (cd, info, fields->f_size, 0, pc, length);
278 case MT_OPERAND_TYPE :
279 print_dollarhex (cd, info, fields->f_type, 0, pc, length);
282 print_dollarhex (cd, info, fields->f_wr, 0, pc, length);
284 case MT_OPERAND_XMODE :
285 print_dollarhex (cd, info, fields->f_xmode, 0, pc, length);
289 /* xgettext:c-format */
290 opcodes_error_handler
291 (_("internal error: unrecognized field %d while printing insn"),
297 cgen_print_fn * const mt_cgen_print_handlers[] =
304 mt_cgen_init_dis (CGEN_CPU_DESC cd)
306 mt_cgen_init_opcode_table (cd);
307 mt_cgen_init_ibld_table (cd);
308 cd->print_handlers = & mt_cgen_print_handlers[0];
309 cd->print_operand = mt_cgen_print_operand;
313 /* Default print handler. */
316 print_normal (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
320 bfd_vma pc ATTRIBUTE_UNUSED,
321 int length ATTRIBUTE_UNUSED)
323 disassemble_info *info = (disassemble_info *) dis_info;
325 /* Print the operand as directed by the attributes. */
326 if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SEM_ONLY))
327 ; /* nothing to do */
328 else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SIGNED))
329 (*info->fprintf_func) (info->stream, "%ld", value);
331 (*info->fprintf_func) (info->stream, "0x%lx", value);
334 /* Default address handler. */
337 print_address (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
341 bfd_vma pc ATTRIBUTE_UNUSED,
342 int length ATTRIBUTE_UNUSED)
344 disassemble_info *info = (disassemble_info *) dis_info;
346 /* Print the operand as directed by the attributes. */
347 if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SEM_ONLY))
348 ; /* Nothing to do. */
349 else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_PCREL_ADDR))
350 (*info->print_address_func) (value, info);
351 else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_ABS_ADDR))
352 (*info->print_address_func) (value, info);
353 else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SIGNED))
354 (*info->fprintf_func) (info->stream, "%ld", (long) value);
356 (*info->fprintf_func) (info->stream, "0x%lx", (long) value);
359 /* Keyword print handler. */
362 print_keyword (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
364 CGEN_KEYWORD *keyword_table,
366 unsigned int attrs ATTRIBUTE_UNUSED)
368 disassemble_info *info = (disassemble_info *) dis_info;
369 const CGEN_KEYWORD_ENTRY *ke;
371 ke = cgen_keyword_lookup_value (keyword_table, value);
373 (*info->fprintf_func) (info->stream, "%s", ke->name);
375 (*info->fprintf_func) (info->stream, "???");
378 /* Default insn printer.
380 DIS_INFO is defined as `void *' so the disassembler needn't know anything
381 about disassemble_info. */
384 print_insn_normal (CGEN_CPU_DESC cd,
386 const CGEN_INSN *insn,
391 const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
392 disassemble_info *info = (disassemble_info *) dis_info;
393 const CGEN_SYNTAX_CHAR_TYPE *syn;
395 CGEN_INIT_PRINT (cd);
397 for (syn = CGEN_SYNTAX_STRING (syntax); *syn; ++syn)
399 if (CGEN_SYNTAX_MNEMONIC_P (*syn))
401 (*info->fprintf_func) (info->stream, "%s", CGEN_INSN_MNEMONIC (insn));
404 if (CGEN_SYNTAX_CHAR_P (*syn))
406 (*info->fprintf_func) (info->stream, "%c", CGEN_SYNTAX_CHAR (*syn));
410 /* We have an operand. */
411 mt_cgen_print_operand (cd, CGEN_SYNTAX_FIELD (*syn), info,
412 fields, CGEN_INSN_ATTRS (insn), pc, length);
416 /* Subroutine of print_insn. Reads an insn into the given buffers and updates
418 Returns 0 if all is well, non-zero otherwise. */
421 read_insn (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
423 disassemble_info *info,
426 CGEN_EXTRACT_INFO *ex_info,
427 unsigned long *insn_value)
429 int status = (*info->read_memory_func) (pc, buf, buflen, info);
433 (*info->memory_error_func) (status, pc, info);
437 ex_info->dis_info = info;
438 ex_info->valid = (1 << buflen) - 1;
439 ex_info->insn_bytes = buf;
441 *insn_value = bfd_get_bits (buf, buflen * 8, info->endian == BFD_ENDIAN_BIG);
445 /* Utility to print an insn.
446 BUF is the base part of the insn, target byte order, BUFLEN bytes long.
447 The result is the size of the insn in bytes or zero for an unknown insn
448 or -1 if an error occurs fetching data (memory_error_func will have
452 print_insn (CGEN_CPU_DESC cd,
454 disassemble_info *info,
458 CGEN_INSN_INT insn_value;
459 const CGEN_INSN_LIST *insn_list;
460 CGEN_EXTRACT_INFO ex_info;
463 /* Extract base part of instruction, just in case CGEN_DIS_* uses it. */
464 basesize = cd->base_insn_bitsize < buflen * 8 ?
465 cd->base_insn_bitsize : buflen * 8;
466 insn_value = cgen_get_insn_value (cd, buf, basesize);
469 /* Fill in ex_info fields like read_insn would. Don't actually call
470 read_insn, since the incoming buffer is already read (and possibly
471 modified a la m32r). */
472 ex_info.valid = (1 << buflen) - 1;
473 ex_info.dis_info = info;
474 ex_info.insn_bytes = buf;
476 /* The instructions are stored in hash lists.
477 Pick the first one and keep trying until we find the right one. */
479 insn_list = CGEN_DIS_LOOKUP_INSN (cd, (char *) buf, insn_value);
480 while (insn_list != NULL)
482 const CGEN_INSN *insn = insn_list->insn;
485 unsigned long insn_value_cropped;
487 #ifdef CGEN_VALIDATE_INSN_SUPPORTED
488 /* Not needed as insn shouldn't be in hash lists if not supported. */
489 /* Supported by this cpu? */
490 if (! mt_cgen_insn_supported (cd, insn))
492 insn_list = CGEN_DIS_NEXT_INSN (insn_list);
497 /* Basic bit mask must be correct. */
498 /* ??? May wish to allow target to defer this check until the extract
501 /* Base size may exceed this instruction's size. Extract the
502 relevant part from the buffer. */
503 if ((unsigned) (CGEN_INSN_BITSIZE (insn) / 8) < buflen &&
504 (unsigned) (CGEN_INSN_BITSIZE (insn) / 8) <= sizeof (unsigned long))
505 insn_value_cropped = bfd_get_bits (buf, CGEN_INSN_BITSIZE (insn),
506 info->endian == BFD_ENDIAN_BIG);
508 insn_value_cropped = insn_value;
510 if ((insn_value_cropped & CGEN_INSN_BASE_MASK (insn))
511 == CGEN_INSN_BASE_VALUE (insn))
513 /* Printing is handled in two passes. The first pass parses the
514 machine insn and extracts the fields. The second pass prints
517 /* Make sure the entire insn is loaded into insn_value, if it
519 if (((unsigned) CGEN_INSN_BITSIZE (insn) > cd->base_insn_bitsize) &&
520 (unsigned) (CGEN_INSN_BITSIZE (insn) / 8) <= sizeof (unsigned long))
522 unsigned long full_insn_value;
523 int rc = read_insn (cd, pc, info, buf,
524 CGEN_INSN_BITSIZE (insn) / 8,
525 & ex_info, & full_insn_value);
528 length = CGEN_EXTRACT_FN (cd, insn)
529 (cd, insn, &ex_info, full_insn_value, &fields, pc);
532 length = CGEN_EXTRACT_FN (cd, insn)
533 (cd, insn, &ex_info, insn_value_cropped, &fields, pc);
535 /* Length < 0 -> error. */
540 CGEN_PRINT_FN (cd, insn) (cd, info, insn, &fields, pc, length);
541 /* Length is in bits, result is in bytes. */
546 insn_list = CGEN_DIS_NEXT_INSN (insn_list);
552 /* Default value for CGEN_PRINT_INSN.
553 The result is the size of the insn in bytes or zero for an unknown insn
554 or -1 if an error occured fetching bytes. */
556 #ifndef CGEN_PRINT_INSN
557 #define CGEN_PRINT_INSN default_print_insn
561 default_print_insn (CGEN_CPU_DESC cd, bfd_vma pc, disassemble_info *info)
563 bfd_byte buf[CGEN_MAX_INSN_SIZE];
567 /* Attempt to read the base part of the insn. */
568 buflen = cd->base_insn_bitsize / 8;
569 status = (*info->read_memory_func) (pc, buf, buflen, info);
571 /* Try again with the minimum part, if min < base. */
572 if (status != 0 && (cd->min_insn_bitsize < cd->base_insn_bitsize))
574 buflen = cd->min_insn_bitsize / 8;
575 status = (*info->read_memory_func) (pc, buf, buflen, info);
580 (*info->memory_error_func) (status, pc, info);
584 return print_insn (cd, pc, info, buf, buflen);
588 Print one instruction from PC on INFO->STREAM.
589 Return the size of the instruction (in bytes). */
591 typedef struct cpu_desc_list
593 struct cpu_desc_list *next;
601 print_insn_mt (bfd_vma pc, disassemble_info *info)
603 static cpu_desc_list *cd_list = 0;
604 cpu_desc_list *cl = 0;
605 static CGEN_CPU_DESC cd = 0;
606 static CGEN_BITSET *prev_isa;
607 static int prev_mach;
608 static int prev_endian;
612 int endian = (info->endian == BFD_ENDIAN_BIG
614 : CGEN_ENDIAN_LITTLE);
615 enum bfd_architecture arch;
617 /* ??? gdb will set mach but leave the architecture as "unknown" */
618 #ifndef CGEN_BFD_ARCH
619 #define CGEN_BFD_ARCH bfd_arch_mt
622 if (arch == bfd_arch_unknown)
623 arch = CGEN_BFD_ARCH;
625 /* There's no standard way to compute the machine or isa number
626 so we leave it to the target. */
627 #ifdef CGEN_COMPUTE_MACH
628 mach = CGEN_COMPUTE_MACH (info);
633 #ifdef CGEN_COMPUTE_ISA
635 static CGEN_BITSET *permanent_isa;
638 permanent_isa = cgen_bitset_create (MAX_ISAS);
640 cgen_bitset_clear (isa);
641 cgen_bitset_add (isa, CGEN_COMPUTE_ISA (info));
644 isa = info->insn_sets;
647 /* If we've switched cpu's, try to find a handle we've used before */
649 && (cgen_bitset_compare (isa, prev_isa) != 0
651 || endian != prev_endian))
654 for (cl = cd_list; cl; cl = cl->next)
656 if (cgen_bitset_compare (cl->isa, isa) == 0 &&
658 cl->endian == endian)
667 /* If we haven't initialized yet, initialize the opcode table. */
670 const bfd_arch_info_type *arch_type = bfd_lookup_arch (arch, mach);
671 const char *mach_name;
675 mach_name = arch_type->printable_name;
677 prev_isa = cgen_bitset_copy (isa);
679 prev_endian = endian;
680 cd = mt_cgen_cpu_open (CGEN_CPU_OPEN_ISAS, prev_isa,
681 CGEN_CPU_OPEN_BFDMACH, mach_name,
682 CGEN_CPU_OPEN_ENDIAN, prev_endian,
687 /* Save this away for future reference. */
688 cl = xmalloc (sizeof (struct cpu_desc_list));
696 mt_cgen_init_dis (cd);
699 /* We try to have as much common code as possible.
700 But at this point some targets need to take over. */
701 /* ??? Some targets may need a hook elsewhere. Try to avoid this,
702 but if not possible try to move this hook elsewhere rather than
704 length = CGEN_PRINT_INSN (cd, pc, info);
710 (*info->fprintf_func) (info->stream, UNKNOWN_INSN_MSG);
711 return cd->default_insn_bitsize / 8;