1 /* Disassemble V850 instructions.
2 Copyright (C) 1996-2018 Free Software Foundation, Inc.
4 This file is part of the GNU opcodes library.
6 This library is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3, or (at your option)
11 It is distributed in the hope that it will be useful, but WITHOUT
12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
14 License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
25 #include "opcode/v850.h"
26 #include "disassemble.h"
29 static const char *const v850_reg_names[] =
31 "r0", "r1", "r2", "sp", "gp", "r5", "r6", "r7",
32 "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
33 "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
34 "r24", "r25", "r26", "r27", "r28", "r29", "ep", "lp"
37 static const char *const v850_sreg_names[] =
39 "eipc/vip/mpm", "eipsw/mpc", "fepc/tid", "fepsw/ppa", "ecr/vmecr", "psw/vmtid",
40 "sr6/fpsr/vmadr/dcc", "sr7/fpepc/dc0",
41 "sr8/fpst/vpecr/dcv1", "sr9/fpcc/vptid", "sr10/fpcfg/vpadr/spal", "sr11/spau",
42 "sr12/vdecr/ipa0l", "eiic/vdtid/ipa0u", "feic/ipa1l", "dbic/ipa1u",
43 "ctpc/ipa2l", "ctpsw/ipa2u", "dbpc/ipa3l", "dbpsw/ipa3u", "ctbp/dpa0l",
44 "dir/dpa0u", "bpc/dpa0u", "asid/dpa1l",
45 "bpav/dpa1u", "bpam/dpa2l", "bpdv/dpa2u", "bpdm/dpa3l", "eiwr/dpa3u",
46 "fewr", "dbwr", "bsel"
49 static const char *const v850_cc_names[] =
51 "v", "c/l", "z", "nh", "s/n", "t", "lt", "le",
52 "nv", "nc/nl", "nz", "h", "ns/p", "sa", "ge", "gt"
55 static const char *const v850_float_cc_names[] =
57 "f/t", "un/or", "eq/neq", "ueq/ogl", "olt/uge", "ult/oge", "ole/ugt", "ule/ogt",
58 "sf/st", "ngle/gle", "seq/sne", "ngl/gl", "lt/nlt", "nge/ge", "le/nle", "ngt/gt"
62 static const char *const v850_vreg_names[] =
64 "vr0", "vr1", "vr2", "vr3", "vr4", "vr5", "vr6", "vr7", "vr8", "vr9",
65 "vr10", "vr11", "vr12", "vr13", "vr14", "vr15", "vr16", "vr17", "vr18",
66 "vr19", "vr20", "vr21", "vr22", "vr23", "vr24", "vr25", "vr26", "vr27",
67 "vr28", "vr29", "vr30", "vr31"
70 static const char *const v850_cacheop_names[] =
72 "chbii", "cibii", "cfali", "cisti", "cildi", "chbid", "chbiwbd",
73 "chbwbd", "cibid", "cibiwbd", "cibwbd", "cfald", "cistd", "cildd"
76 static const int v850_cacheop_codes[] =
78 0x00, 0x20, 0x40, 0x60, 0x61, 0x04, 0x06,
79 0x07, 0x24, 0x26, 0x27, 0x44, 0x64, 0x65, -1
82 static const char *const v850_prefop_names[] =
85 static const int v850_prefop_codes[] =
89 print_value (int flags,
91 struct disassemble_info *info,
94 if (flags & V850_PCREL)
96 bfd_vma addr = value + memaddr;
98 if (flags & V850_INVERSE_PCREL)
99 addr = memaddr - value;
100 info->print_address_func (addr, info);
102 else if (flags & V850_OPERAND_DISP)
104 if (flags & V850_OPERAND_SIGNED)
106 info->fprintf_func (info->stream, "%ld", value);
110 info->fprintf_func (info->stream, "%lu", value);
113 else if ((flags & V850E_IMMEDIATE32)
114 || (flags & V850E_IMMEDIATE16HI))
116 info->fprintf_func (info->stream, "0x%lx", value);
120 if (flags & V850_OPERAND_SIGNED)
122 info->fprintf_func (info->stream, "%ld", value);
126 info->fprintf_func (info->stream, "%lu", value);
132 get_operand_value (const struct v850_operand *operand,
136 struct disassemble_info * info,
143 if ((operand->flags & V850E_IMMEDIATE16)
144 || (operand->flags & V850E_IMMEDIATE16HI))
146 int status = info->read_memory_func (memaddr + bytes_read, buffer, 2, info);
150 value = bfd_getl16 (buffer);
152 if (operand->flags & V850E_IMMEDIATE16HI)
154 else if (value & 0x8000)
155 value |= (-1UL << 16);
161 info->memory_error_func (status, memaddr + bytes_read, info);
166 if (operand->flags & V850E_IMMEDIATE23)
168 int status = info->read_memory_func (memaddr + 2, buffer, 4, info);
172 value = bfd_getl32 (buffer);
174 value = (operand->extract) (value, invalid);
180 info->memory_error_func (status, memaddr + bytes_read, info);
185 if (operand->flags & V850E_IMMEDIATE32)
187 int status = info->read_memory_func (memaddr + bytes_read, buffer, 4, info);
192 value = bfd_getl32 (buffer);
198 info->memory_error_func (status, memaddr + bytes_read, info);
203 if (operand->extract)
204 value = (operand->extract) (insn, invalid);
207 if (operand->bits == -1)
208 value = (insn & operand->shift);
210 value = (insn >> operand->shift) & ((1 << operand->bits) - 1);
212 if (operand->flags & V850_OPERAND_SIGNED)
213 value = ((long)(value << (sizeof (long)*8 - operand->bits))
214 >> (sizeof (long)*8 - operand->bits));
222 disassemble (bfd_vma memaddr,
223 struct disassemble_info *info,
227 struct v850_opcode *op = (struct v850_opcode *) v850_opcodes;
228 const struct v850_operand *operand;
230 int target_processor;
236 target_processor = PROCESSOR_V850;
240 target_processor = PROCESSOR_V850E;
243 case bfd_mach_v850e1:
244 target_processor = PROCESSOR_V850E;
247 case bfd_mach_v850e2:
248 target_processor = PROCESSOR_V850E2;
251 case bfd_mach_v850e2v3:
252 target_processor = PROCESSOR_V850E2V3;
255 case bfd_mach_v850e3v5:
256 target_processor = PROCESSOR_V850E3V5;
260 /* If this is a two byte insn, then mask off the high bits. */
264 /* Find the opcode. */
267 if ((op->mask & insn) == op->opcode
268 && (op->processors & target_processor)
269 && !(op->processors & PROCESSOR_OPTION_ALIAS))
271 /* Code check start. */
272 const unsigned char *opindex_ptr;
276 for (opindex_ptr = op->operands, opnum = 1;
278 opindex_ptr++, opnum++)
283 operand = &v850_operands[*opindex_ptr];
285 value = get_operand_value (operand, insn, bytes_read, memaddr,
291 if ((operand->flags & V850_NOT_R0) && value == 0 && (op->memop) <=2)
294 if ((operand->flags & V850_NOT_SA) && value == 0xd)
297 if ((operand->flags & V850_NOT_IMM0) && value == 0)
301 /* Code check end. */
304 (*info->fprintf_func) (info->stream, "%s\t", op->name);
306 fprintf (stderr, "match: insn: %lx, mask: %lx, opcode: %lx, name: %s\n",
307 insn, op->mask, op->opcode, op->name );
311 /* Now print the operands.
313 MEMOP is the operand number at which a memory
314 address specification starts, or zero if this
315 instruction has no memory addresses.
317 A memory address is always two arguments.
319 This information allows us to determine when to
320 insert commas into the output stream as well as
321 when to insert disp[reg] expressions onto the
324 for (opindex_ptr = op->operands, opnum = 1;
326 opindex_ptr++, opnum++)
328 bfd_boolean square = FALSE;
333 operand = &v850_operands[*opindex_ptr];
335 value = get_operand_value (operand, insn, bytes_read, memaddr,
338 /* The first operand is always output without any
341 For the following arguments:
343 If memop && opnum == memop + 1, then we need '[' since
344 we're about to output the register used in a memory
347 If memop && opnum == memop + 2, then we need ']' since
348 we just finished the register in a memory reference. We
349 also need a ',' before this operand.
351 Else we just need a comma.
353 We may need to output a trailing ']' if the last operand
354 in an instruction is the register for a memory address.
356 The exception (and there's always an exception) are the
357 "jmp" insn which needs square brackets around it's only
358 register argument, and the clr1/not1/set1/tst1 insns
359 which [...] around their second register argument. */
362 if (operand->flags & V850_OPERAND_BANG)
366 else if (operand->flags & V850_OPERAND_PERCENT)
371 if (opnum == 1 && opnum == memop)
373 info->fprintf_func (info->stream, "%s[", prefix);
376 else if ( (strcmp ("stc.w", op->name) == 0
377 || strcmp ("cache", op->name) == 0
378 || strcmp ("pref", op->name) == 0)
379 && opnum == 2 && opnum == memop)
381 info->fprintf_func (info->stream, ", [");
384 else if ( (strcmp (op->name, "pushsp") == 0
385 || strcmp (op->name, "popsp") == 0
386 || strcmp (op->name, "dbpush" ) == 0)
389 info->fprintf_func (info->stream, "-");
392 && (v850_operands[*(opindex_ptr - 1)].flags
393 & V850_OPERAND_DISP) != 0
396 info->fprintf_func (info->stream, "%s[", prefix);
400 && ( op->opcode == 0x00e407e0 /* clr1 */
401 || op->opcode == 0x00e207e0 /* not1 */
402 || op->opcode == 0x00e007e0 /* set1 */
403 || op->opcode == 0x00e607e0 /* tst1 */
406 info->fprintf_func (info->stream, ", %s[", prefix);
410 info->fprintf_func (info->stream, ", %s", prefix);
412 /* Extract the flags, ignoring ones which do not
413 effect disassembly output. */
414 flag = operand->flags & (V850_OPERAND_REG
418 | V850E_OPERAND_REG_LIST
421 | V850_OPERAND_CACHEOP
422 | V850_OPERAND_PREFOP
423 | V850_OPERAND_FLOAT_CC);
427 case V850_OPERAND_REG:
428 info->fprintf_func (info->stream, "%s", v850_reg_names[value]);
430 case (V850_OPERAND_REG|V850_REG_EVEN):
431 info->fprintf_func (info->stream, "%s", v850_reg_names[value * 2]);
433 case V850_OPERAND_EP:
434 info->fprintf_func (info->stream, "ep");
436 case V850_OPERAND_SRG:
437 info->fprintf_func (info->stream, "%s", v850_sreg_names[value]);
439 case V850E_OPERAND_REG_LIST:
441 static int list12_regs[32] = { 30, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
442 0, 0, 0, 0, 0, 31, 29, 28, 23, 22, 21, 20, 27, 26, 25, 24 };
445 unsigned long int mask = 0;
448 switch (operand->shift)
450 case 0xffe00001: regs = list12_regs; break;
452 /* xgettext:c-format */
453 fprintf (stderr, _("unknown operand shift: %x\n"), operand->shift);
457 for (i = 0; i < 32; i++)
459 if (value & (1 << i))
463 default: mask |= (1 << regs[ i ]); break;
464 /* xgettext:c-format */
465 case 0: fprintf (stderr, _("unknown reg: %d\n"), i ); abort ();
466 case -1: pc = 1; break;
471 info->fprintf_func (info->stream, "{");
480 for (bit = 0; bit < 32; bit++)
481 if (mask & (1 << bit))
483 unsigned long int first = bit;
484 unsigned long int last;
487 info->fprintf_func (info->stream, ", ");
491 info->fprintf_func (info->stream, "%s", v850_reg_names[first]);
493 for (bit++; bit < 32; bit++)
494 if ((mask & (1 << bit)) == 0)
499 if (last > first + 1)
501 info->fprintf_func (info->stream, " - %s", v850_reg_names[ last - 1 ]);
507 info->fprintf_func (info->stream, "%sPC", mask ? ", " : "");
510 info->fprintf_func (info->stream, "}");
514 case V850_OPERAND_CC:
515 info->fprintf_func (info->stream, "%s", v850_cc_names[value]);
518 case V850_OPERAND_FLOAT_CC:
519 info->fprintf_func (info->stream, "%s", v850_float_cc_names[value]);
522 case V850_OPERAND_CACHEOP:
526 for (idx = 0; v850_cacheop_codes[idx] != -1; idx++)
528 if (value == v850_cacheop_codes[idx])
530 info->fprintf_func (info->stream, "%s",
531 v850_cacheop_names[idx]);
532 goto MATCH_CACHEOP_CODE;
535 info->fprintf_func (info->stream, "%d", (int) value);
540 case V850_OPERAND_PREFOP:
544 for (idx = 0; v850_prefop_codes[idx] != -1; idx++)
546 if (value == v850_prefop_codes[idx])
548 info->fprintf_func (info->stream, "%s",
549 v850_prefop_names[idx]);
550 goto MATCH_PREFOP_CODE;
553 info->fprintf_func (info->stream, "%d", (int) value);
558 case V850_OPERAND_VREG:
559 info->fprintf_func (info->stream, "%s", v850_vreg_names[value]);
563 print_value (operand->flags, memaddr, info, value);
568 (*info->fprintf_func) (info->stream, "]");
582 print_insn_v850 (bfd_vma memaddr, struct disassemble_info * info)
584 int status, status2, match;
586 int length = 0, code_length = 0;
587 unsigned long insn = 0, insn2 = 0;
588 int target_processor;
594 target_processor = PROCESSOR_V850;
598 target_processor = PROCESSOR_V850E;
601 case bfd_mach_v850e1:
602 target_processor = PROCESSOR_V850E;
605 case bfd_mach_v850e2:
606 target_processor = PROCESSOR_V850E2;
609 case bfd_mach_v850e2v3:
610 target_processor = PROCESSOR_V850E2V3;
613 case bfd_mach_v850e3v5:
614 target_processor = PROCESSOR_V850E3V5;
618 status = info->read_memory_func (memaddr, buffer, 2, info);
622 info->memory_error_func (status, memaddr, info);
626 insn = bfd_getl16 (buffer);
628 status2 = info->read_memory_func (memaddr+2, buffer, 2 , info);
632 insn2 = bfd_getl16 (buffer);
633 /* fprintf (stderr, "insn2 0x%08lx\n", insn2); */
638 && ((target_processor & PROCESSOR_V850E2_UP) != 0))
640 if ((insn & 0xffff) == 0x02e0 /* jr 32bit */
641 && !status2 && (insn2 & 0x1) == 0)
646 else if ((insn & 0xffe0) == 0x02e0 /* jarl 32bit */
647 && !status2 && (insn2 & 0x1) == 0)
652 else if ((insn & 0xffe0) == 0x06e0 /* jmp 32bit */
653 && !status2 && (insn2 & 0x1) == 0)
661 && ((target_processor & PROCESSOR_V850E3V5_UP) != 0))
663 if ( ((insn & 0xffe0) == 0x07a0 /* ld.dw 23bit (v850e3v5) */
664 && !status2 && (insn2 & 0x000f) == 0x0009)
665 || ((insn & 0xffe0) == 0x07a0 /* st.dw 23bit (v850e3v5) */
666 && !status2 && (insn2 & 0x000f) == 0x000f))
674 && ((target_processor & PROCESSOR_V850E2V3_UP) != 0))
676 if (((insn & 0xffe0) == 0x0780 /* ld.b 23bit */
677 && !status2 && (insn2 & 0x000f) == 0x0005)
678 || ((insn & 0xffe0) == 0x07a0 /* ld.bu 23bit */
679 && !status2 && (insn2 & 0x000f) == 0x0005)
680 || ((insn & 0xffe0) == 0x0780 /* ld.h 23bit */
681 && !status2 && (insn2 & 0x000f) == 0x0007)
682 || ((insn & 0xffe0) == 0x07a0 /* ld.hu 23bit */
683 && !status2 && (insn2 & 0x000f) == 0x0007)
684 || ((insn & 0xffe0) == 0x0780 /* ld.w 23bit */
685 && !status2 && (insn2 & 0x000f) == 0x0009))
690 else if (((insn & 0xffe0) == 0x0780 /* st.b 23bit */
691 && !status2 && (insn2 & 0x000f) == 0x000d)
692 || ((insn & 0xffe0) == 0x07a0 /* st.h 23bit */
693 && !status2 && (insn2 & 0x000f) == 0x000d)
694 || ((insn & 0xffe0) == 0x0780 /* st.w 23bit */
695 && !status2 && (insn2 & 0x000f) == 0x000f))
703 && target_processor != PROCESSOR_V850)
705 if ((insn & 0xffe0) == 0x0620) /* 32 bit MOV */
710 else if ((insn & 0xffc0) == 0x0780 /* prepare {list}, imm5, imm16<<16 */
711 && !status2 && (insn2 & 0x001f) == 0x0013)
716 else if ((insn & 0xffc0) == 0x0780 /* prepare {list}, imm5, imm16 */
717 && !status2 && (insn2 & 0x001f) == 0x000b)
722 else if ((insn & 0xffc0) == 0x0780 /* prepare {list}, imm5, imm32 */
723 && !status2 && (insn2 & 0x001f) == 0x001b)
732 && (insn & 0x0600) == 0x0600))
734 /* This is a 4 byte insn. */
735 status = info->read_memory_func (memaddr, buffer, 4, info);
738 insn = bfd_getl32 (buffer);
741 length = code_length = 4;
745 if (code_length > length)
747 status = info->read_memory_func (memaddr + length, buffer, code_length - length, info);
752 if (length == 0 && !status)
753 length = code_length = 2;
758 /* when the last 2 bytes of section is 0xffff, length will be 0 and cause infinitive loop */
762 match = disassemble (memaddr, info, length, insn);
768 status = info->read_memory_func (memaddr, buffer, code_length, info);
770 while (l < code_length)
772 if (code_length - l == 2)
774 insn = bfd_getl16 (buffer + l) & 0xffff;
775 info->fprintf_func (info->stream, ".short\t0x%04lx", insn);
780 insn = bfd_getl32 (buffer + l);
781 info->fprintf_func (info->stream, ".long\t0x%08lx", insn);