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) 1996-2017 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"
36 #include "epiphany-desc.h"
37 #include "epiphany-opc.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. */
63 #define CGEN_PRINT_INSN epiphany_print_insn
66 epiphany_print_insn (CGEN_CPU_DESC cd, bfd_vma pc, disassemble_info *info)
68 bfd_byte buf[CGEN_MAX_INSN_SIZE];
72 info->bytes_per_chunk = 2;
73 info->bytes_per_line = 4;
75 /* Attempt to read the base part of the insn. */
76 buflen = cd->base_insn_bitsize / 8;
77 status = (*info->read_memory_func) (pc, buf, buflen, info);
79 /* Try again with the minimum part, if min < base. */
80 if (status != 0 && (cd->min_insn_bitsize < cd->base_insn_bitsize))
82 buflen = cd->min_insn_bitsize / 8;
83 status = (*info->read_memory_func) (pc, buf, buflen, info);
88 (*info->memory_error_func) (status, pc, info);
92 return print_insn (cd, pc, info, buf, buflen);
97 print_postindex (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
100 unsigned int attrs ATTRIBUTE_UNUSED,
101 bfd_vma pc ATTRIBUTE_UNUSED,
102 int length ATTRIBUTE_UNUSED)
104 disassemble_info *info = (disassemble_info *) dis_info;
105 (*info->fprintf_func) (info->stream, value ? "-" : "+");
109 print_simm_not_reg (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
112 unsigned int attrs ATTRIBUTE_UNUSED,
113 bfd_vma pc ATTRIBUTE_UNUSED,
114 int length ATTRIBUTE_UNUSED)
116 print_address (cd, dis_info, value, attrs, pc, length);
120 print_uimm_not_reg (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
123 unsigned int attrs ATTRIBUTE_UNUSED,
124 bfd_vma pc ATTRIBUTE_UNUSED,
125 int length ATTRIBUTE_UNUSED)
127 disassemble_info *info = (disassemble_info *)dis_info;
130 (*info->fprintf_func) (info->stream, "-");
133 print_address (cd, dis_info, value, attrs, pc, length);
139 void epiphany_cgen_print_operand
140 (CGEN_CPU_DESC, int, PTR, CGEN_FIELDS *, void const *, bfd_vma, int);
142 /* Main entry point for printing operands.
143 XINFO is a `void *' and not a `disassemble_info *' to not put a requirement
144 of dis-asm.h on cgen.h.
146 This function is basically just a big switch statement. Earlier versions
147 used tables to look up the function to use, but
148 - if the table contains both assembler and disassembler functions then
149 the disassembler contains much of the assembler and vice-versa,
150 - there's a lot of inlining possibilities as things grow,
151 - using a switch statement avoids the function call overhead.
153 This function could be moved into `print_insn_normal', but keeping it
154 separate makes clear the interface between `print_insn_normal' and each of
158 epiphany_cgen_print_operand (CGEN_CPU_DESC cd,
162 void const *attrs ATTRIBUTE_UNUSED,
166 disassemble_info *info = (disassemble_info *) xinfo;
170 case EPIPHANY_OPERAND_DIRECTION :
171 print_postindex (cd, info, fields->f_addsubx, 0, pc, length);
173 case EPIPHANY_OPERAND_DISP11 :
174 print_uimm_not_reg (cd, info, fields->f_disp11, 0|(1<<CGEN_OPERAND_VIRTUAL), pc, length);
176 case EPIPHANY_OPERAND_DISP3 :
177 print_normal (cd, info, fields->f_disp3, 0, pc, length);
179 case EPIPHANY_OPERAND_DPMI :
180 print_postindex (cd, info, fields->f_subd, 0, pc, length);
182 case EPIPHANY_OPERAND_FRD :
183 print_keyword (cd, info, & epiphany_cgen_opval_gr_names, fields->f_rd, 0);
185 case EPIPHANY_OPERAND_FRD6 :
186 print_keyword (cd, info, & epiphany_cgen_opval_gr_names, fields->f_rd6, 0|(1<<CGEN_OPERAND_VIRTUAL));
188 case EPIPHANY_OPERAND_FRM :
189 print_keyword (cd, info, & epiphany_cgen_opval_gr_names, fields->f_rm, 0);
191 case EPIPHANY_OPERAND_FRM6 :
192 print_keyword (cd, info, & epiphany_cgen_opval_gr_names, fields->f_rm6, 0|(1<<CGEN_OPERAND_VIRTUAL));
194 case EPIPHANY_OPERAND_FRN :
195 print_keyword (cd, info, & epiphany_cgen_opval_gr_names, fields->f_rn, 0);
197 case EPIPHANY_OPERAND_FRN6 :
198 print_keyword (cd, info, & epiphany_cgen_opval_gr_names, fields->f_rn6, 0|(1<<CGEN_OPERAND_VIRTUAL));
200 case EPIPHANY_OPERAND_IMM16 :
201 print_address (cd, info, fields->f_imm16, 0|(1<<CGEN_OPERAND_RELAX)|(1<<CGEN_OPERAND_VIRTUAL), pc, length);
203 case EPIPHANY_OPERAND_IMM8 :
204 print_address (cd, info, fields->f_imm8, 0|(1<<CGEN_OPERAND_RELAX), pc, length);
206 case EPIPHANY_OPERAND_RD :
207 print_keyword (cd, info, & epiphany_cgen_opval_gr_names, fields->f_rd, 0);
209 case EPIPHANY_OPERAND_RD6 :
210 print_keyword (cd, info, & epiphany_cgen_opval_gr_names, fields->f_rd6, 0|(1<<CGEN_OPERAND_VIRTUAL));
212 case EPIPHANY_OPERAND_RM :
213 print_keyword (cd, info, & epiphany_cgen_opval_gr_names, fields->f_rm, 0);
215 case EPIPHANY_OPERAND_RM6 :
216 print_keyword (cd, info, & epiphany_cgen_opval_gr_names, fields->f_rm6, 0|(1<<CGEN_OPERAND_VIRTUAL));
218 case EPIPHANY_OPERAND_RN :
219 print_keyword (cd, info, & epiphany_cgen_opval_gr_names, fields->f_rn, 0);
221 case EPIPHANY_OPERAND_RN6 :
222 print_keyword (cd, info, & epiphany_cgen_opval_gr_names, fields->f_rn6, 0|(1<<CGEN_OPERAND_VIRTUAL));
224 case EPIPHANY_OPERAND_SD :
225 print_keyword (cd, info, & epiphany_cgen_opval_cr_names, fields->f_sd, 0);
227 case EPIPHANY_OPERAND_SD6 :
228 print_keyword (cd, info, & epiphany_cgen_opval_cr_names, fields->f_sd6, 0|(1<<CGEN_OPERAND_VIRTUAL));
230 case EPIPHANY_OPERAND_SDDMA :
231 print_keyword (cd, info, & epiphany_cgen_opval_crdma_names, fields->f_sd6, 0|(1<<CGEN_OPERAND_VIRTUAL));
233 case EPIPHANY_OPERAND_SDMEM :
234 print_keyword (cd, info, & epiphany_cgen_opval_crmem_names, fields->f_sd6, 0|(1<<CGEN_OPERAND_VIRTUAL));
236 case EPIPHANY_OPERAND_SDMESH :
237 print_keyword (cd, info, & epiphany_cgen_opval_crmesh_names, fields->f_sd6, 0|(1<<CGEN_OPERAND_VIRTUAL));
239 case EPIPHANY_OPERAND_SHIFT :
240 print_normal (cd, info, fields->f_shift, 0, pc, length);
242 case EPIPHANY_OPERAND_SIMM11 :
243 print_simm_not_reg (cd, info, fields->f_sdisp11, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_RELAX)|(1<<CGEN_OPERAND_VIRTUAL), pc, length);
245 case EPIPHANY_OPERAND_SIMM24 :
246 print_address (cd, info, fields->f_simm24, 0|(1<<CGEN_OPERAND_RELAX)|(1<<CGEN_OPERAND_RELOC)|(1<<CGEN_OPERAND_PCREL_ADDR), pc, length);
248 case EPIPHANY_OPERAND_SIMM3 :
249 print_simm_not_reg (cd, info, fields->f_sdisp3, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_RELAX), pc, length);
251 case EPIPHANY_OPERAND_SIMM8 :
252 print_address (cd, info, fields->f_simm8, 0|(1<<CGEN_OPERAND_RELAX)|(1<<CGEN_OPERAND_RELOC)|(1<<CGEN_OPERAND_PCREL_ADDR), pc, length);
254 case EPIPHANY_OPERAND_SN :
255 print_keyword (cd, info, & epiphany_cgen_opval_cr_names, fields->f_sn, 0);
257 case EPIPHANY_OPERAND_SN6 :
258 print_keyword (cd, info, & epiphany_cgen_opval_cr_names, fields->f_sn6, 0|(1<<CGEN_OPERAND_VIRTUAL));
260 case EPIPHANY_OPERAND_SNDMA :
261 print_keyword (cd, info, & epiphany_cgen_opval_crdma_names, fields->f_sn6, 0|(1<<CGEN_OPERAND_VIRTUAL));
263 case EPIPHANY_OPERAND_SNMEM :
264 print_keyword (cd, info, & epiphany_cgen_opval_crmem_names, fields->f_sn6, 0|(1<<CGEN_OPERAND_VIRTUAL));
266 case EPIPHANY_OPERAND_SNMESH :
267 print_keyword (cd, info, & epiphany_cgen_opval_crmesh_names, fields->f_sn6, 0|(1<<CGEN_OPERAND_VIRTUAL));
269 case EPIPHANY_OPERAND_SWI_NUM :
270 print_uimm_not_reg (cd, info, fields->f_trap_num, 0, pc, length);
272 case EPIPHANY_OPERAND_TRAPNUM6 :
273 print_normal (cd, info, fields->f_trap_num, 0, pc, length);
277 /* xgettext:c-format */
278 fprintf (stderr, _("Unrecognized field %d while printing insn.\n"),
284 cgen_print_fn * const epiphany_cgen_print_handlers[] =
291 epiphany_cgen_init_dis (CGEN_CPU_DESC cd)
293 epiphany_cgen_init_opcode_table (cd);
294 epiphany_cgen_init_ibld_table (cd);
295 cd->print_handlers = & epiphany_cgen_print_handlers[0];
296 cd->print_operand = epiphany_cgen_print_operand;
300 /* Default print handler. */
303 print_normal (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
307 bfd_vma pc ATTRIBUTE_UNUSED,
308 int length ATTRIBUTE_UNUSED)
310 disassemble_info *info = (disassemble_info *) dis_info;
312 /* Print the operand as directed by the attributes. */
313 if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SEM_ONLY))
314 ; /* nothing to do */
315 else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SIGNED))
316 (*info->fprintf_func) (info->stream, "%ld", value);
318 (*info->fprintf_func) (info->stream, "0x%lx", value);
321 /* Default address handler. */
324 print_address (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
328 bfd_vma pc ATTRIBUTE_UNUSED,
329 int length ATTRIBUTE_UNUSED)
331 disassemble_info *info = (disassemble_info *) dis_info;
333 /* Print the operand as directed by the attributes. */
334 if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SEM_ONLY))
335 ; /* Nothing to do. */
336 else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_PCREL_ADDR))
337 (*info->print_address_func) (value, info);
338 else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_ABS_ADDR))
339 (*info->print_address_func) (value, info);
340 else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SIGNED))
341 (*info->fprintf_func) (info->stream, "%ld", (long) value);
343 (*info->fprintf_func) (info->stream, "0x%lx", (long) value);
346 /* Keyword print handler. */
349 print_keyword (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
351 CGEN_KEYWORD *keyword_table,
353 unsigned int attrs ATTRIBUTE_UNUSED)
355 disassemble_info *info = (disassemble_info *) dis_info;
356 const CGEN_KEYWORD_ENTRY *ke;
358 ke = cgen_keyword_lookup_value (keyword_table, value);
360 (*info->fprintf_func) (info->stream, "%s", ke->name);
362 (*info->fprintf_func) (info->stream, "???");
365 /* Default insn printer.
367 DIS_INFO is defined as `void *' so the disassembler needn't know anything
368 about disassemble_info. */
371 print_insn_normal (CGEN_CPU_DESC cd,
373 const CGEN_INSN *insn,
378 const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
379 disassemble_info *info = (disassemble_info *) dis_info;
380 const CGEN_SYNTAX_CHAR_TYPE *syn;
382 CGEN_INIT_PRINT (cd);
384 for (syn = CGEN_SYNTAX_STRING (syntax); *syn; ++syn)
386 if (CGEN_SYNTAX_MNEMONIC_P (*syn))
388 (*info->fprintf_func) (info->stream, "%s", CGEN_INSN_MNEMONIC (insn));
391 if (CGEN_SYNTAX_CHAR_P (*syn))
393 (*info->fprintf_func) (info->stream, "%c", CGEN_SYNTAX_CHAR (*syn));
397 /* We have an operand. */
398 epiphany_cgen_print_operand (cd, CGEN_SYNTAX_FIELD (*syn), info,
399 fields, CGEN_INSN_ATTRS (insn), pc, length);
403 /* Subroutine of print_insn. Reads an insn into the given buffers and updates
405 Returns 0 if all is well, non-zero otherwise. */
408 read_insn (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
410 disassemble_info *info,
413 CGEN_EXTRACT_INFO *ex_info,
414 unsigned long *insn_value)
416 int status = (*info->read_memory_func) (pc, buf, buflen, info);
420 (*info->memory_error_func) (status, pc, info);
424 ex_info->dis_info = info;
425 ex_info->valid = (1 << buflen) - 1;
426 ex_info->insn_bytes = buf;
428 *insn_value = bfd_get_bits (buf, buflen * 8, info->endian == BFD_ENDIAN_BIG);
432 /* Utility to print an insn.
433 BUF is the base part of the insn, target byte order, BUFLEN bytes long.
434 The result is the size of the insn in bytes or zero for an unknown insn
435 or -1 if an error occurs fetching data (memory_error_func will have
439 print_insn (CGEN_CPU_DESC cd,
441 disassemble_info *info,
445 CGEN_INSN_INT insn_value;
446 const CGEN_INSN_LIST *insn_list;
447 CGEN_EXTRACT_INFO ex_info;
450 /* Extract base part of instruction, just in case CGEN_DIS_* uses it. */
451 basesize = cd->base_insn_bitsize < buflen * 8 ?
452 cd->base_insn_bitsize : buflen * 8;
453 insn_value = cgen_get_insn_value (cd, buf, basesize);
456 /* Fill in ex_info fields like read_insn would. Don't actually call
457 read_insn, since the incoming buffer is already read (and possibly
458 modified a la m32r). */
459 ex_info.valid = (1 << buflen) - 1;
460 ex_info.dis_info = info;
461 ex_info.insn_bytes = buf;
463 /* The instructions are stored in hash lists.
464 Pick the first one and keep trying until we find the right one. */
466 insn_list = CGEN_DIS_LOOKUP_INSN (cd, (char *) buf, insn_value);
467 while (insn_list != NULL)
469 const CGEN_INSN *insn = insn_list->insn;
472 unsigned long insn_value_cropped;
474 #ifdef CGEN_VALIDATE_INSN_SUPPORTED
475 /* Not needed as insn shouldn't be in hash lists if not supported. */
476 /* Supported by this cpu? */
477 if (! epiphany_cgen_insn_supported (cd, insn))
479 insn_list = CGEN_DIS_NEXT_INSN (insn_list);
484 /* Basic bit mask must be correct. */
485 /* ??? May wish to allow target to defer this check until the extract
488 /* Base size may exceed this instruction's size. Extract the
489 relevant part from the buffer. */
490 if ((unsigned) (CGEN_INSN_BITSIZE (insn) / 8) < buflen &&
491 (unsigned) (CGEN_INSN_BITSIZE (insn) / 8) <= sizeof (unsigned long))
492 insn_value_cropped = bfd_get_bits (buf, CGEN_INSN_BITSIZE (insn),
493 info->endian == BFD_ENDIAN_BIG);
495 insn_value_cropped = insn_value;
497 if ((insn_value_cropped & CGEN_INSN_BASE_MASK (insn))
498 == CGEN_INSN_BASE_VALUE (insn))
500 /* Printing is handled in two passes. The first pass parses the
501 machine insn and extracts the fields. The second pass prints
504 /* Make sure the entire insn is loaded into insn_value, if it
506 if (((unsigned) CGEN_INSN_BITSIZE (insn) > cd->base_insn_bitsize) &&
507 (unsigned) (CGEN_INSN_BITSIZE (insn) / 8) <= sizeof (unsigned long))
509 unsigned long full_insn_value;
510 int rc = read_insn (cd, pc, info, buf,
511 CGEN_INSN_BITSIZE (insn) / 8,
512 & ex_info, & full_insn_value);
515 length = CGEN_EXTRACT_FN (cd, insn)
516 (cd, insn, &ex_info, full_insn_value, &fields, pc);
519 length = CGEN_EXTRACT_FN (cd, insn)
520 (cd, insn, &ex_info, insn_value_cropped, &fields, pc);
522 /* Length < 0 -> error. */
527 CGEN_PRINT_FN (cd, insn) (cd, info, insn, &fields, pc, length);
528 /* Length is in bits, result is in bytes. */
533 insn_list = CGEN_DIS_NEXT_INSN (insn_list);
539 /* Default value for CGEN_PRINT_INSN.
540 The result is the size of the insn in bytes or zero for an unknown insn
541 or -1 if an error occured fetching bytes. */
543 #ifndef CGEN_PRINT_INSN
544 #define CGEN_PRINT_INSN default_print_insn
548 default_print_insn (CGEN_CPU_DESC cd, bfd_vma pc, disassemble_info *info)
550 bfd_byte buf[CGEN_MAX_INSN_SIZE];
554 /* Attempt to read the base part of the insn. */
555 buflen = cd->base_insn_bitsize / 8;
556 status = (*info->read_memory_func) (pc, buf, buflen, info);
558 /* Try again with the minimum part, if min < base. */
559 if (status != 0 && (cd->min_insn_bitsize < cd->base_insn_bitsize))
561 buflen = cd->min_insn_bitsize / 8;
562 status = (*info->read_memory_func) (pc, buf, buflen, info);
567 (*info->memory_error_func) (status, pc, info);
571 return print_insn (cd, pc, info, buf, buflen);
575 Print one instruction from PC on INFO->STREAM.
576 Return the size of the instruction (in bytes). */
578 typedef struct cpu_desc_list
580 struct cpu_desc_list *next;
588 print_insn_epiphany (bfd_vma pc, disassemble_info *info)
590 static cpu_desc_list *cd_list = 0;
591 cpu_desc_list *cl = 0;
592 static CGEN_CPU_DESC cd = 0;
593 static CGEN_BITSET *prev_isa;
594 static int prev_mach;
595 static int prev_endian;
599 int endian = (info->endian == BFD_ENDIAN_BIG
601 : CGEN_ENDIAN_LITTLE);
602 enum bfd_architecture arch;
604 /* ??? gdb will set mach but leave the architecture as "unknown" */
605 #ifndef CGEN_BFD_ARCH
606 #define CGEN_BFD_ARCH bfd_arch_epiphany
609 if (arch == bfd_arch_unknown)
610 arch = CGEN_BFD_ARCH;
612 /* There's no standard way to compute the machine or isa number
613 so we leave it to the target. */
614 #ifdef CGEN_COMPUTE_MACH
615 mach = CGEN_COMPUTE_MACH (info);
620 #ifdef CGEN_COMPUTE_ISA
622 static CGEN_BITSET *permanent_isa;
625 permanent_isa = cgen_bitset_create (MAX_ISAS);
627 cgen_bitset_clear (isa);
628 cgen_bitset_add (isa, CGEN_COMPUTE_ISA (info));
631 isa = info->insn_sets;
634 /* If we've switched cpu's, try to find a handle we've used before */
636 && (cgen_bitset_compare (isa, prev_isa) != 0
638 || endian != prev_endian))
641 for (cl = cd_list; cl; cl = cl->next)
643 if (cgen_bitset_compare (cl->isa, isa) == 0 &&
645 cl->endian == endian)
654 /* If we haven't initialized yet, initialize the opcode table. */
657 const bfd_arch_info_type *arch_type = bfd_lookup_arch (arch, mach);
658 const char *mach_name;
662 mach_name = arch_type->printable_name;
664 prev_isa = cgen_bitset_copy (isa);
666 prev_endian = endian;
667 cd = epiphany_cgen_cpu_open (CGEN_CPU_OPEN_ISAS, prev_isa,
668 CGEN_CPU_OPEN_BFDMACH, mach_name,
669 CGEN_CPU_OPEN_ENDIAN, prev_endian,
674 /* Save this away for future reference. */
675 cl = xmalloc (sizeof (struct cpu_desc_list));
683 epiphany_cgen_init_dis (cd);
686 /* We try to have as much common code as possible.
687 But at this point some targets need to take over. */
688 /* ??? Some targets may need a hook elsewhere. Try to avoid this,
689 but if not possible try to move this hook elsewhere rather than
691 length = CGEN_PRINT_INSN (cd, pc, info);
697 (*info->fprintf_func) (info->stream, UNKNOWN_INSN_MSG);
698 return cd->default_insn_bitsize / 8;