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Diffstat (limited to 'contrib/binutils/opcodes/i386-dis.c')
-rw-r--r--contrib/binutils/opcodes/i386-dis.c2300
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diff --git a/contrib/binutils/opcodes/i386-dis.c b/contrib/binutils/opcodes/i386-dis.c
deleted file mode 100644
index 63b7d9c6fbdc..000000000000
--- a/contrib/binutils/opcodes/i386-dis.c
+++ /dev/null
@@ -1,2300 +0,0 @@
-/* Print i386 instructions for GDB, the GNU debugger.
- Copyright (C) 1988, 89, 91, 93, 94, 95, 96, 97, 1998
- Free Software Foundation, Inc.
-
-This file is part of GDB.
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
-/*
- * 80386 instruction printer by Pace Willisson (pace@prep.ai.mit.edu)
- * July 1988
- * modified by John Hassey (hassey@dg-rtp.dg.com)
- */
-
-/*
- * The main tables describing the instructions is essentially a copy
- * of the "Opcode Map" chapter (Appendix A) of the Intel 80386
- * Programmers Manual. Usually, there is a capital letter, followed
- * by a small letter. The capital letter tell the addressing mode,
- * and the small letter tells about the operand size. Refer to
- * the Intel manual for details.
- */
-
-#include "dis-asm.h"
-#include "sysdep.h"
-
-#define MAXLEN 20
-
-#include <setjmp.h>
-
-static int fetch_data PARAMS ((struct disassemble_info *, bfd_byte *));
-
-struct dis_private
-{
- /* Points to first byte not fetched. */
- bfd_byte *max_fetched;
- bfd_byte the_buffer[MAXLEN];
- bfd_vma insn_start;
- jmp_buf bailout;
-};
-
-/* Make sure that bytes from INFO->PRIVATE_DATA->BUFFER (inclusive)
- to ADDR (exclusive) are valid. Returns 1 for success, longjmps
- on error. */
-#define FETCH_DATA(info, addr) \
- ((addr) <= ((struct dis_private *)(info->private_data))->max_fetched \
- ? 1 : fetch_data ((info), (addr)))
-
-static int
-fetch_data (info, addr)
- struct disassemble_info *info;
- bfd_byte *addr;
-{
- int status;
- struct dis_private *priv = (struct dis_private *)info->private_data;
- bfd_vma start = priv->insn_start + (priv->max_fetched - priv->the_buffer);
-
- status = (*info->read_memory_func) (start,
- priv->max_fetched,
- addr - priv->max_fetched,
- info);
- if (status != 0)
- {
- (*info->memory_error_func) (status, start, info);
- longjmp (priv->bailout, 1);
- }
- else
- priv->max_fetched = addr;
- return 1;
-}
-
-#define Eb OP_E, b_mode
-#define indirEb OP_indirE, b_mode
-#define Gb OP_G, b_mode
-#define Ev OP_E, v_mode
-#define indirEv OP_indirE, v_mode
-#define Ew OP_E, w_mode
-#define Ma OP_E, v_mode
-#define M OP_E, 0
-#define Mp OP_E, 0 /* ? */
-#define Gv OP_G, v_mode
-#define Gw OP_G, w_mode
-#define Rw OP_rm, w_mode
-#define Rd OP_rm, d_mode
-#define Ib OP_I, b_mode
-#define sIb OP_sI, b_mode /* sign extened byte */
-#define Iv OP_I, v_mode
-#define Iw OP_I, w_mode
-#define Jb OP_J, b_mode
-#define Jv OP_J, v_mode
-#if 0
-#define ONE OP_ONE, 0
-#endif
-#define Cd OP_C, d_mode
-#define Dd OP_D, d_mode
-#define Td OP_T, d_mode
-
-#define eAX OP_REG, eAX_reg
-#define eBX OP_REG, eBX_reg
-#define eCX OP_REG, eCX_reg
-#define eDX OP_REG, eDX_reg
-#define eSP OP_REG, eSP_reg
-#define eBP OP_REG, eBP_reg
-#define eSI OP_REG, eSI_reg
-#define eDI OP_REG, eDI_reg
-#define AL OP_REG, al_reg
-#define CL OP_REG, cl_reg
-#define DL OP_REG, dl_reg
-#define BL OP_REG, bl_reg
-#define AH OP_REG, ah_reg
-#define CH OP_REG, ch_reg
-#define DH OP_REG, dh_reg
-#define BH OP_REG, bh_reg
-#define AX OP_REG, ax_reg
-#define DX OP_REG, dx_reg
-#define indirDX OP_REG, indir_dx_reg
-
-#define Sw OP_SEG, w_mode
-#define Ap OP_DIR, lptr
-#define Av OP_DIR, v_mode
-#define Ob OP_OFF, b_mode
-#define Ov OP_OFF, v_mode
-#define Xb OP_DSSI, b_mode
-#define Xv OP_DSSI, v_mode
-#define Yb OP_ESDI, b_mode
-#define Yv OP_ESDI, v_mode
-
-#define es OP_REG, es_reg
-#define ss OP_REG, ss_reg
-#define cs OP_REG, cs_reg
-#define ds OP_REG, ds_reg
-#define fs OP_REG, fs_reg
-#define gs OP_REG, gs_reg
-
-#define MX OP_MMX, 0
-#define EM OP_EM, v_mode
-#define MS OP_MS, b_mode
-
-typedef int (*op_rtn) PARAMS ((int bytemode, int aflag, int dflag));
-
-static int OP_E PARAMS ((int, int, int));
-static int OP_G PARAMS ((int, int, int));
-static int OP_I PARAMS ((int, int, int));
-static int OP_indirE PARAMS ((int, int, int));
-static int OP_sI PARAMS ((int, int, int));
-static int OP_REG PARAMS ((int, int, int));
-static int OP_J PARAMS ((int, int, int));
-static int OP_DIR PARAMS ((int, int, int));
-static int OP_OFF PARAMS ((int, int, int));
-static int OP_ESDI PARAMS ((int, int, int));
-static int OP_DSSI PARAMS ((int, int, int));
-static int OP_SEG PARAMS ((int, int, int));
-static int OP_C PARAMS ((int, int, int));
-static int OP_D PARAMS ((int, int, int));
-static int OP_T PARAMS ((int, int, int));
-static int OP_rm PARAMS ((int, int, int));
-static int OP_ST PARAMS ((int, int, int));
-static int OP_STi PARAMS ((int, int, int));
-#if 0
-static int OP_ONE PARAMS ((int, int, int));
-#endif
-static int OP_MMX PARAMS ((int, int, int));
-static int OP_EM PARAMS ((int, int, int));
-static int OP_MS PARAMS ((int, int, int));
-
-static void append_prefix PARAMS ((void));
-static void set_op PARAMS ((int op));
-static void putop PARAMS ((char *template, int aflag, int dflag));
-static void dofloat PARAMS ((int aflag, int dflag));
-static int get16 PARAMS ((void));
-static int get32 PARAMS ((void));
-static void ckprefix PARAMS ((void));
-
-#define b_mode 1
-#define v_mode 2
-#define w_mode 3
-#define d_mode 4
-
-#define es_reg 100
-#define cs_reg 101
-#define ss_reg 102
-#define ds_reg 103
-#define fs_reg 104
-#define gs_reg 105
-#define eAX_reg 107
-#define eCX_reg 108
-#define eDX_reg 109
-#define eBX_reg 110
-#define eSP_reg 111
-#define eBP_reg 112
-#define eSI_reg 113
-#define eDI_reg 114
-
-#define lptr 115
-
-#define al_reg 116
-#define cl_reg 117
-#define dl_reg 118
-#define bl_reg 119
-#define ah_reg 120
-#define ch_reg 121
-#define dh_reg 122
-#define bh_reg 123
-
-#define ax_reg 124
-#define cx_reg 125
-#define dx_reg 126
-#define bx_reg 127
-#define sp_reg 128
-#define bp_reg 129
-#define si_reg 130
-#define di_reg 131
-
-#define indir_dx_reg 150
-
-#define GRP1b NULL, NULL, 0
-#define GRP1S NULL, NULL, 1
-#define GRP1Ss NULL, NULL, 2
-#define GRP2b NULL, NULL, 3
-#define GRP2S NULL, NULL, 4
-#define GRP2b_one NULL, NULL, 5
-#define GRP2S_one NULL, NULL, 6
-#define GRP2b_cl NULL, NULL, 7
-#define GRP2S_cl NULL, NULL, 8
-#define GRP3b NULL, NULL, 9
-#define GRP3S NULL, NULL, 10
-#define GRP4 NULL, NULL, 11
-#define GRP5 NULL, NULL, 12
-#define GRP6 NULL, NULL, 13
-#define GRP7 NULL, NULL, 14
-#define GRP8 NULL, NULL, 15
-#define GRP9 NULL, NULL, 16
-#define GRP10 NULL, NULL, 17
-#define GRP11 NULL, NULL, 18
-#define GRP12 NULL, NULL, 19
-
-#define FLOATCODE 50
-#define FLOAT NULL, NULL, FLOATCODE
-
-struct dis386 {
- char *name;
- op_rtn op1;
- int bytemode1;
- op_rtn op2;
- int bytemode2;
- op_rtn op3;
- int bytemode3;
-};
-
-static struct dis386 dis386[] = {
- /* 00 */
- { "addb", Eb, Gb },
- { "addS", Ev, Gv },
- { "addb", Gb, Eb },
- { "addS", Gv, Ev },
- { "addb", AL, Ib },
- { "addS", eAX, Iv },
- { "pushS", es },
- { "popS", es },
- /* 08 */
- { "orb", Eb, Gb },
- { "orS", Ev, Gv },
- { "orb", Gb, Eb },
- { "orS", Gv, Ev },
- { "orb", AL, Ib },
- { "orS", eAX, Iv },
- { "pushS", cs },
- { "(bad)" }, /* 0x0f extended opcode escape */
- /* 10 */
- { "adcb", Eb, Gb },
- { "adcS", Ev, Gv },
- { "adcb", Gb, Eb },
- { "adcS", Gv, Ev },
- { "adcb", AL, Ib },
- { "adcS", eAX, Iv },
- { "pushS", ss },
- { "popS", ss },
- /* 18 */
- { "sbbb", Eb, Gb },
- { "sbbS", Ev, Gv },
- { "sbbb", Gb, Eb },
- { "sbbS", Gv, Ev },
- { "sbbb", AL, Ib },
- { "sbbS", eAX, Iv },
- { "pushS", ds },
- { "popS", ds },
- /* 20 */
- { "andb", Eb, Gb },
- { "andS", Ev, Gv },
- { "andb", Gb, Eb },
- { "andS", Gv, Ev },
- { "andb", AL, Ib },
- { "andS", eAX, Iv },
- { "(bad)" }, /* SEG ES prefix */
- { "daa" },
- /* 28 */
- { "subb", Eb, Gb },
- { "subS", Ev, Gv },
- { "subb", Gb, Eb },
- { "subS", Gv, Ev },
- { "subb", AL, Ib },
- { "subS", eAX, Iv },
- { "(bad)" }, /* SEG CS prefix */
- { "das" },
- /* 30 */
- { "xorb", Eb, Gb },
- { "xorS", Ev, Gv },
- { "xorb", Gb, Eb },
- { "xorS", Gv, Ev },
- { "xorb", AL, Ib },
- { "xorS", eAX, Iv },
- { "(bad)" }, /* SEG SS prefix */
- { "aaa" },
- /* 38 */
- { "cmpb", Eb, Gb },
- { "cmpS", Ev, Gv },
- { "cmpb", Gb, Eb },
- { "cmpS", Gv, Ev },
- { "cmpb", AL, Ib },
- { "cmpS", eAX, Iv },
- { "(bad)" }, /* SEG DS prefix */
- { "aas" },
- /* 40 */
- { "incS", eAX },
- { "incS", eCX },
- { "incS", eDX },
- { "incS", eBX },
- { "incS", eSP },
- { "incS", eBP },
- { "incS", eSI },
- { "incS", eDI },
- /* 48 */
- { "decS", eAX },
- { "decS", eCX },
- { "decS", eDX },
- { "decS", eBX },
- { "decS", eSP },
- { "decS", eBP },
- { "decS", eSI },
- { "decS", eDI },
- /* 50 */
- { "pushS", eAX },
- { "pushS", eCX },
- { "pushS", eDX },
- { "pushS", eBX },
- { "pushS", eSP },
- { "pushS", eBP },
- { "pushS", eSI },
- { "pushS", eDI },
- /* 58 */
- { "popS", eAX },
- { "popS", eCX },
- { "popS", eDX },
- { "popS", eBX },
- { "popS", eSP },
- { "popS", eBP },
- { "popS", eSI },
- { "popS", eDI },
- /* 60 */
- { "pusha" },
- { "popa" },
- { "boundS", Gv, Ma },
- { "arpl", Ew, Gw },
- { "(bad)" }, /* seg fs */
- { "(bad)" }, /* seg gs */
- { "(bad)" }, /* op size prefix */
- { "(bad)" }, /* adr size prefix */
- /* 68 */
- { "pushS", Iv }, /* 386 book wrong */
- { "imulS", Gv, Ev, Iv },
- { "pushS", sIb }, /* push of byte really pushes 2 or 4 bytes */
- { "imulS", Gv, Ev, Ib },
- { "insb", Yb, indirDX },
- { "insS", Yv, indirDX },
- { "outsb", indirDX, Xb },
- { "outsS", indirDX, Xv },
- /* 70 */
- { "jo", Jb },
- { "jno", Jb },
- { "jb", Jb },
- { "jae", Jb },
- { "je", Jb },
- { "jne", Jb },
- { "jbe", Jb },
- { "ja", Jb },
- /* 78 */
- { "js", Jb },
- { "jns", Jb },
- { "jp", Jb },
- { "jnp", Jb },
- { "jl", Jb },
- { "jnl", Jb },
- { "jle", Jb },
- { "jg", Jb },
- /* 80 */
- { GRP1b },
- { GRP1S },
- { "(bad)" },
- { GRP1Ss },
- { "testb", Eb, Gb },
- { "testS", Ev, Gv },
- { "xchgb", Eb, Gb },
- { "xchgS", Ev, Gv },
- /* 88 */
- { "movb", Eb, Gb },
- { "movS", Ev, Gv },
- { "movb", Gb, Eb },
- { "movS", Gv, Ev },
- { "movS", Ev, Sw },
- { "leaS", Gv, M },
- { "movS", Sw, Ev },
- { "popS", Ev },
- /* 90 */
- { "nop" },
- { "xchgS", eCX, eAX },
- { "xchgS", eDX, eAX },
- { "xchgS", eBX, eAX },
- { "xchgS", eSP, eAX },
- { "xchgS", eBP, eAX },
- { "xchgS", eSI, eAX },
- { "xchgS", eDI, eAX },
- /* 98 */
- { "cWtS" },
- { "cStd" },
- { "lcall", Ap },
- { "(bad)" }, /* fwait */
- { "pushf" },
- { "popf" },
- { "sahf" },
- { "lahf" },
- /* a0 */
- { "movb", AL, Ob },
- { "movS", eAX, Ov },
- { "movb", Ob, AL },
- { "movS", Ov, eAX },
- { "movsb", Yb, Xb },
- { "movsS", Yv, Xv },
- { "cmpsb", Yb, Xb },
- { "cmpsS", Yv, Xv },
- /* a8 */
- { "testb", AL, Ib },
- { "testS", eAX, Iv },
- { "stosb", Yb, AL },
- { "stosS", Yv, eAX },
- { "lodsb", AL, Xb },
- { "lodsS", eAX, Xv },
- { "scasb", AL, Yb },
- { "scasS", eAX, Yv },
- /* b0 */
- { "movb", AL, Ib },
- { "movb", CL, Ib },
- { "movb", DL, Ib },
- { "movb", BL, Ib },
- { "movb", AH, Ib },
- { "movb", CH, Ib },
- { "movb", DH, Ib },
- { "movb", BH, Ib },
- /* b8 */
- { "movS", eAX, Iv },
- { "movS", eCX, Iv },
- { "movS", eDX, Iv },
- { "movS", eBX, Iv },
- { "movS", eSP, Iv },
- { "movS", eBP, Iv },
- { "movS", eSI, Iv },
- { "movS", eDI, Iv },
- /* c0 */
- { GRP2b },
- { GRP2S },
- { "ret", Iw },
- { "ret" },
- { "lesS", Gv, Mp },
- { "ldsS", Gv, Mp },
- { "movb", Eb, Ib },
- { "movS", Ev, Iv },
- /* c8 */
- { "enter", Iw, Ib },
- { "leave" },
- { "lret", Iw },
- { "lret" },
- { "int3" },
- { "int", Ib },
- { "into" },
- { "iret" },
- /* d0 */
- { GRP2b_one },
- { GRP2S_one },
- { GRP2b_cl },
- { GRP2S_cl },
- { "aam", Ib },
- { "aad", Ib },
- { "(bad)" },
- { "xlat" },
- /* d8 */
- { FLOAT },
- { FLOAT },
- { FLOAT },
- { FLOAT },
- { FLOAT },
- { FLOAT },
- { FLOAT },
- { FLOAT },
- /* e0 */
- { "loopne", Jb },
- { "loope", Jb },
- { "loop", Jb },
- { "jCcxz", Jb },
- { "inb", AL, Ib },
- { "inS", eAX, Ib },
- { "outb", Ib, AL },
- { "outS", Ib, eAX },
- /* e8 */
- { "call", Av },
- { "jmp", Jv },
- { "ljmp", Ap },
- { "jmp", Jb },
- { "inb", AL, indirDX },
- { "inS", eAX, indirDX },
- { "outb", indirDX, AL },
- { "outS", indirDX, eAX },
- /* f0 */
- { "(bad)" }, /* lock prefix */
- { "(bad)" },
- { "(bad)" }, /* repne */
- { "(bad)" }, /* repz */
- { "hlt" },
- { "cmc" },
- { GRP3b },
- { GRP3S },
- /* f8 */
- { "clc" },
- { "stc" },
- { "cli" },
- { "sti" },
- { "cld" },
- { "std" },
- { GRP4 },
- { GRP5 },
-};
-
-static struct dis386 dis386_twobyte[] = {
- /* 00 */
- { GRP6 },
- { GRP7 },
- { "larS", Gv, Ew },
- { "lslS", Gv, Ew },
- { "(bad)" },
- { "(bad)" },
- { "clts" },
- { "(bad)" },
- /* 08 */
- { "invd" },
- { "wbinvd" },
- { "(bad)" }, { "ud2a" },
- { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" },
- /* 10 */
- { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" },
- { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" },
- /* 18 */
- { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" },
- { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" },
- /* 20 */
- /* these are all backward in appendix A of the intel book */
- { "movl", Rd, Cd },
- { "movl", Rd, Dd },
- { "movl", Cd, Rd },
- { "movl", Dd, Rd },
- { "movl", Rd, Td },
- { "(bad)" },
- { "movl", Td, Rd },
- { "(bad)" },
- /* 28 */
- { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" },
- { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" },
- /* 30 */
- { "wrmsr" }, { "rdtsc" }, { "rdmsr" }, { "rdpmc" },
- { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" },
- /* 38 */
- { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" },
- { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" },
- /* 40 */
- { "cmovo", Gv,Ev }, { "cmovno", Gv,Ev }, { "cmovb", Gv,Ev }, { "cmovae", Gv,Ev },
- { "cmove", Gv,Ev }, { "cmovne", Gv,Ev }, { "cmovbe", Gv,Ev }, { "cmova", Gv,Ev },
- /* 48 */
- { "cmovs", Gv,Ev }, { "cmovns", Gv,Ev }, { "cmovp", Gv,Ev }, { "cmovnp", Gv,Ev },
- { "cmovl", Gv,Ev }, { "cmovge", Gv,Ev }, { "cmovle", Gv,Ev }, { "cmovg", Gv,Ev },
- /* 50 */
- { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" },
- { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" },
- /* 58 */
- { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" },
- { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" },
- /* 60 */
- { "punpcklbw", MX, EM },
- { "punpcklwd", MX, EM },
- { "punpckldq", MX, EM },
- { "packsswb", MX, EM },
- { "pcmpgtb", MX, EM },
- { "pcmpgtw", MX, EM },
- { "pcmpgtd", MX, EM },
- { "packuswb", MX, EM },
- /* 68 */
- { "punpckhbw", MX, EM },
- { "punpckhwd", MX, EM },
- { "punpckhdq", MX, EM },
- { "packssdw", MX, EM },
- { "(bad)" }, { "(bad)" },
- { "movd", MX, Ev },
- { "movq", MX, EM },
- /* 70 */
- { "(bad)" },
- { GRP10 },
- { GRP11 },
- { GRP12 },
- { "pcmpeqb", MX, EM },
- { "pcmpeqw", MX, EM },
- { "pcmpeqd", MX, EM },
- { "emms" },
- /* 78 */
- { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" },
- { "(bad)" }, { "(bad)" },
- { "movd", Ev, MX },
- { "movq", EM, MX },
- /* 80 */
- { "jo", Jv },
- { "jno", Jv },
- { "jb", Jv },
- { "jae", Jv },
- { "je", Jv },
- { "jne", Jv },
- { "jbe", Jv },
- { "ja", Jv },
- /* 88 */
- { "js", Jv },
- { "jns", Jv },
- { "jp", Jv },
- { "jnp", Jv },
- { "jl", Jv },
- { "jge", Jv },
- { "jle", Jv },
- { "jg", Jv },
- /* 90 */
- { "seto", Eb },
- { "setno", Eb },
- { "setb", Eb },
- { "setae", Eb },
- { "sete", Eb },
- { "setne", Eb },
- { "setbe", Eb },
- { "seta", Eb },
- /* 98 */
- { "sets", Eb },
- { "setns", Eb },
- { "setp", Eb },
- { "setnp", Eb },
- { "setl", Eb },
- { "setge", Eb },
- { "setle", Eb },
- { "setg", Eb },
- /* a0 */
- { "pushS", fs },
- { "popS", fs },
- { "cpuid" },
- { "btS", Ev, Gv },
- { "shldS", Ev, Gv, Ib },
- { "shldS", Ev, Gv, CL },
- { "(bad)" },
- { "(bad)" },
- /* a8 */
- { "pushS", gs },
- { "popS", gs },
- { "rsm" },
- { "btsS", Ev, Gv },
- { "shrdS", Ev, Gv, Ib },
- { "shrdS", Ev, Gv, CL },
- { "(bad)" },
- { "imulS", Gv, Ev },
- /* b0 */
- { "cmpxchgb", Eb, Gb },
- { "cmpxchgS", Ev, Gv },
- { "lssS", Gv, Mp }, /* 386 lists only Mp */
- { "btrS", Ev, Gv },
- { "lfsS", Gv, Mp }, /* 386 lists only Mp */
- { "lgsS", Gv, Mp }, /* 386 lists only Mp */
- { "movzbS", Gv, Eb },
- { "movzwS", Gv, Ew },
- /* b8 */
- { "ud2b" },
- { "(bad)" },
- { GRP8 },
- { "btcS", Ev, Gv },
- { "bsfS", Gv, Ev },
- { "bsrS", Gv, Ev },
- { "movsbS", Gv, Eb },
- { "movswS", Gv, Ew },
- /* c0 */
- { "xaddb", Eb, Gb },
- { "xaddS", Ev, Gv },
- { "(bad)" },
- { "(bad)" },
- { "(bad)" },
- { "(bad)" },
- { "(bad)" },
- { GRP9 },
- /* c8 */
- { "bswap", eAX },
- { "bswap", eCX },
- { "bswap", eDX },
- { "bswap", eBX },
- { "bswap", eSP },
- { "bswap", eBP },
- { "bswap", eSI },
- { "bswap", eDI },
- /* d0 */
- { "(bad)" },
- { "psrlw", MX, EM },
- { "psrld", MX, EM },
- { "psrlq", MX, EM },
- { "(bad)" },
- { "pmullw", MX, EM },
- { "(bad)" }, { "(bad)" },
- /* d8 */
- { "psubusb", MX, EM },
- { "psubusw", MX, EM },
- { "(bad)" },
- { "pand", MX, EM },
- { "paddusb", MX, EM },
- { "paddusw", MX, EM },
- { "(bad)" },
- { "pandn", MX, EM },
- /* e0 */
- { "(bad)" },
- { "psraw", MX, EM },
- { "psrad", MX, EM },
- { "(bad)" },
- { "(bad)" },
- { "pmulhw", MX, EM },
- { "(bad)" }, { "(bad)" },
- /* e8 */
- { "psubsb", MX, EM },
- { "psubsw", MX, EM },
- { "(bad)" },
- { "por", MX, EM },
- { "paddsb", MX, EM },
- { "paddsw", MX, EM },
- { "(bad)" },
- { "pxor", MX, EM },
- /* f0 */
- { "(bad)" },
- { "psllw", MX, EM },
- { "pslld", MX, EM },
- { "psllq", MX, EM },
- { "(bad)" },
- { "pmaddwd", MX, EM },
- { "(bad)" }, { "(bad)" },
- /* f8 */
- { "psubb", MX, EM },
- { "psubw", MX, EM },
- { "psubd", MX, EM },
- { "(bad)" },
- { "paddb", MX, EM },
- { "paddw", MX, EM },
- { "paddd", MX, EM },
- { "(bad)" }
-};
-
-static const unsigned char onebyte_has_modrm[256] = {
- 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0,
- 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0,
- 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0,
- 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0,
- 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
- 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
- 0,0,1,1,0,0,0,0,0,1,0,1,0,0,0,0,
- 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
- 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
- 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
- 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
- 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
- 1,1,0,0,1,1,1,1,0,0,0,0,0,0,0,0,
- 1,1,1,1,0,0,0,0,1,1,1,1,1,1,1,1,
- 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
- 0,0,0,0,0,0,1,1,0,0,0,0,0,0,1,1
-};
-
-static const unsigned char twobyte_has_modrm[256] = {
- /* 00 */ 1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0, /* 0f */
- /* 10 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 1f */
- /* 20 */ 1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0, /* 2f */
- /* 30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 3f */
- /* 40 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 4f */
- /* 50 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 5f */
- /* 60 */ 1,1,1,1,1,1,1,1,1,1,1,1,0,0,1,1, /* 6f */
- /* 70 */ 0,1,1,1,1,1,1,0,0,0,0,0,0,0,1,1, /* 7f */
- /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */
- /* 90 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 9f */
- /* a0 */ 0,0,0,1,1,1,1,1,0,0,0,1,1,1,1,1, /* af */
- /* b0 */ 1,1,1,1,1,1,1,1,0,0,1,1,1,1,1,1, /* bf */
- /* c0 */ 1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0, /* cf */
- /* d0 */ 0,1,1,1,0,1,0,0,1,1,0,1,1,1,0,1, /* df */
- /* e0 */ 0,1,1,0,0,1,0,0,1,1,0,1,1,1,0,1, /* ef */
- /* f0 */ 0,1,1,1,0,1,0,0,1,1,1,0,1,1,1,0 /* ff */
-};
-
-static char obuf[100];
-static char *obufp;
-static char scratchbuf[100];
-static unsigned char *start_codep;
-static unsigned char *codep;
-static disassemble_info *the_info;
-static int mod;
-static int rm;
-static int reg;
-static void oappend PARAMS ((char *s));
-
-static char *names32[]={
- "%eax","%ecx","%edx","%ebx", "%esp","%ebp","%esi","%edi",
-};
-static char *names16[] = {
- "%ax","%cx","%dx","%bx","%sp","%bp","%si","%di",
-};
-static char *names8[] = {
- "%al","%cl","%dl","%bl","%ah","%ch","%dh","%bh",
-};
-static char *names_seg[] = {
- "%es","%cs","%ss","%ds","%fs","%gs","%?","%?",
-};
-static char *index16[] = {
- "bx+si","bx+di","bp+si","bp+di","si","di","bp","bx"
-};
-
-static struct dis386 grps[][8] = {
- /* GRP1b */
- {
- { "addb", Eb, Ib },
- { "orb", Eb, Ib },
- { "adcb", Eb, Ib },
- { "sbbb", Eb, Ib },
- { "andb", Eb, Ib },
- { "subb", Eb, Ib },
- { "xorb", Eb, Ib },
- { "cmpb", Eb, Ib }
- },
- /* GRP1S */
- {
- { "addS", Ev, Iv },
- { "orS", Ev, Iv },
- { "adcS", Ev, Iv },
- { "sbbS", Ev, Iv },
- { "andS", Ev, Iv },
- { "subS", Ev, Iv },
- { "xorS", Ev, Iv },
- { "cmpS", Ev, Iv }
- },
- /* GRP1Ss */
- {
- { "addS", Ev, sIb },
- { "orS", Ev, sIb },
- { "adcS", Ev, sIb },
- { "sbbS", Ev, sIb },
- { "andS", Ev, sIb },
- { "subS", Ev, sIb },
- { "xorS", Ev, sIb },
- { "cmpS", Ev, sIb }
- },
- /* GRP2b */
- {
- { "rolb", Eb, Ib },
- { "rorb", Eb, Ib },
- { "rclb", Eb, Ib },
- { "rcrb", Eb, Ib },
- { "shlb", Eb, Ib },
- { "shrb", Eb, Ib },
- { "(bad)" },
- { "sarb", Eb, Ib },
- },
- /* GRP2S */
- {
- { "rolS", Ev, Ib },
- { "rorS", Ev, Ib },
- { "rclS", Ev, Ib },
- { "rcrS", Ev, Ib },
- { "shlS", Ev, Ib },
- { "shrS", Ev, Ib },
- { "(bad)" },
- { "sarS", Ev, Ib },
- },
- /* GRP2b_one */
- {
- { "rolb", Eb },
- { "rorb", Eb },
- { "rclb", Eb },
- { "rcrb", Eb },
- { "shlb", Eb },
- { "shrb", Eb },
- { "(bad)" },
- { "sarb", Eb },
- },
- /* GRP2S_one */
- {
- { "rolS", Ev },
- { "rorS", Ev },
- { "rclS", Ev },
- { "rcrS", Ev },
- { "shlS", Ev },
- { "shrS", Ev },
- { "(bad)" },
- { "sarS", Ev },
- },
- /* GRP2b_cl */
- {
- { "rolb", Eb, CL },
- { "rorb", Eb, CL },
- { "rclb", Eb, CL },
- { "rcrb", Eb, CL },
- { "shlb", Eb, CL },
- { "shrb", Eb, CL },
- { "(bad)" },
- { "sarb", Eb, CL },
- },
- /* GRP2S_cl */
- {
- { "rolS", Ev, CL },
- { "rorS", Ev, CL },
- { "rclS", Ev, CL },
- { "rcrS", Ev, CL },
- { "shlS", Ev, CL },
- { "shrS", Ev, CL },
- { "(bad)" },
- { "sarS", Ev, CL }
- },
- /* GRP3b */
- {
- { "testb", Eb, Ib },
- { "(bad)", Eb },
- { "notb", Eb },
- { "negb", Eb },
- { "mulb", AL, Eb },
- { "imulb", AL, Eb },
- { "divb", AL, Eb },
- { "idivb", AL, Eb }
- },
- /* GRP3S */
- {
- { "testS", Ev, Iv },
- { "(bad)" },
- { "notS", Ev },
- { "negS", Ev },
- { "mulS", eAX, Ev },
- { "imulS", eAX, Ev },
- { "divS", eAX, Ev },
- { "idivS", eAX, Ev },
- },
- /* GRP4 */
- {
- { "incb", Eb },
- { "decb", Eb },
- { "(bad)" },
- { "(bad)" },
- { "(bad)" },
- { "(bad)" },
- { "(bad)" },
- { "(bad)" },
- },
- /* GRP5 */
- {
- { "incS", Ev },
- { "decS", Ev },
- { "call", indirEv },
- { "lcall", indirEv },
- { "jmp", indirEv },
- { "ljmp", indirEv },
- { "pushS", Ev },
- { "(bad)" },
- },
- /* GRP6 */
- {
- { "sldt", Ew },
- { "str", Ew },
- { "lldt", Ew },
- { "ltr", Ew },
- { "verr", Ew },
- { "verw", Ew },
- { "(bad)" },
- { "(bad)" }
- },
- /* GRP7 */
- {
- { "sgdt", Ew },
- { "sidt", Ew },
- { "lgdt", Ew },
- { "lidt", Ew },
- { "smsw", Ew },
- { "(bad)" },
- { "lmsw", Ew },
- { "invlpg", Ew },
- },
- /* GRP8 */
- {
- { "(bad)" },
- { "(bad)" },
- { "(bad)" },
- { "(bad)" },
- { "btS", Ev, Ib },
- { "btsS", Ev, Ib },
- { "btrS", Ev, Ib },
- { "btcS", Ev, Ib },
- },
- /* GRP9 */
- {
- { "(bad)" },
- { "cmpxchg8b", Ev },
- { "(bad)" },
- { "(bad)" },
- { "(bad)" },
- { "(bad)" },
- { "(bad)" },
- { "(bad)" },
- },
- /* GRP10 */
- {
- { "(bad)" },
- { "(bad)" },
- { "psrlw", MS, Ib },
- { "(bad)" },
- { "psraw", MS, Ib },
- { "(bad)" },
- { "psllw", MS, Ib },
- { "(bad)" },
- },
- /* GRP11 */
- {
- { "(bad)" },
- { "(bad)" },
- { "psrld", MS, Ib },
- { "(bad)" },
- { "psrad", MS, Ib },
- { "(bad)" },
- { "pslld", MS, Ib },
- { "(bad)" },
- },
- /* GRP12 */
- {
- { "(bad)" },
- { "(bad)" },
- { "psrlq", MS, Ib },
- { "(bad)" },
- { "(bad)" },
- { "(bad)" },
- { "psllq", MS, Ib },
- { "(bad)" },
- }
-};
-
-#define PREFIX_REPZ 1
-#define PREFIX_REPNZ 2
-#define PREFIX_LOCK 4
-#define PREFIX_CS 8
-#define PREFIX_SS 0x10
-#define PREFIX_DS 0x20
-#define PREFIX_ES 0x40
-#define PREFIX_FS 0x80
-#define PREFIX_GS 0x100
-#define PREFIX_DATA 0x200
-#define PREFIX_ADR 0x400
-#define PREFIX_FWAIT 0x800
-
-static int prefixes;
-
-static void
-ckprefix ()
-{
- prefixes = 0;
- while (1)
- {
- FETCH_DATA (the_info, codep + 1);
- switch (*codep)
- {
- case 0xf3:
- prefixes |= PREFIX_REPZ;
- break;
- case 0xf2:
- prefixes |= PREFIX_REPNZ;
- break;
- case 0xf0:
- prefixes |= PREFIX_LOCK;
- break;
- case 0x2e:
- prefixes |= PREFIX_CS;
- break;
- case 0x36:
- prefixes |= PREFIX_SS;
- break;
- case 0x3e:
- prefixes |= PREFIX_DS;
- break;
- case 0x26:
- prefixes |= PREFIX_ES;
- break;
- case 0x64:
- prefixes |= PREFIX_FS;
- break;
- case 0x65:
- prefixes |= PREFIX_GS;
- break;
- case 0x66:
- prefixes |= PREFIX_DATA;
- break;
- case 0x67:
- prefixes |= PREFIX_ADR;
- break;
- case 0x9b:
- prefixes |= PREFIX_FWAIT;
- break;
- default:
- return;
- }
- codep++;
- }
-}
-
-static char op1out[100], op2out[100], op3out[100];
-static int op_address[3], op_ad, op_index[3];
-static int start_pc;
-
-
-/*
- * On the 386's of 1988, the maximum length of an instruction is 15 bytes.
- * (see topic "Redundant prefixes" in the "Differences from 8086"
- * section of the "Virtual 8086 Mode" chapter.)
- * 'pc' should be the address of this instruction, it will
- * be used to print the target address if this is a relative jump or call
- * The function returns the length of this instruction in bytes.
- */
-
-int print_insn_x86 PARAMS ((bfd_vma pc, disassemble_info *info, int aflag,
- int dflag));
-int
-print_insn_i386 (pc, info)
- bfd_vma pc;
- disassemble_info *info;
-{
- if (info->mach == bfd_mach_i386_i386)
- return print_insn_x86 (pc, info, 1, 1);
- else if (info->mach == bfd_mach_i386_i8086)
- return print_insn_x86 (pc, info, 0, 0);
- else
- abort ();
-}
-
-int
-print_insn_x86 (pc, info, aflag, dflag)
- bfd_vma pc;
- disassemble_info *info;
- int aflag;
- int dflag;
-{
- struct dis386 *dp;
- int i;
- int enter_instruction;
- char *first, *second, *third;
- int needcomma;
- unsigned char need_modrm;
-
- struct dis_private priv;
- bfd_byte *inbuf = priv.the_buffer;
-
- /* The output looks better if we put 5 bytes on a line, since that
- puts long word instructions on a single line. */
- info->bytes_per_line = 5;
-
- info->private_data = (PTR) &priv;
- priv.max_fetched = priv.the_buffer;
- priv.insn_start = pc;
- if (setjmp (priv.bailout) != 0)
- /* Error return. */
- return -1;
-
- obuf[0] = 0;
- op1out[0] = 0;
- op2out[0] = 0;
- op3out[0] = 0;
-
- op_index[0] = op_index[1] = op_index[2] = -1;
-
- the_info = info;
- start_pc = pc;
- start_codep = inbuf;
- codep = inbuf;
-
- ckprefix ();
-
- FETCH_DATA (info, codep + 1);
- if (*codep == 0xc8)
- enter_instruction = 1;
- else
- enter_instruction = 0;
-
- obufp = obuf;
-
- if (prefixes & PREFIX_REPZ)
- oappend ("repz ");
- if (prefixes & PREFIX_REPNZ)
- oappend ("repnz ");
- if (prefixes & PREFIX_LOCK)
- oappend ("lock ");
-
- if ((prefixes & PREFIX_FWAIT)
- && ((*codep < 0xd8) || (*codep > 0xdf)))
- {
- /* fwait not followed by floating point instruction */
- (*info->fprintf_func) (info->stream, "fwait");
- return (1);
- }
-
- if (prefixes & PREFIX_DATA)
- dflag ^= 1;
-
- if (prefixes & PREFIX_ADR)
- {
- aflag ^= 1;
- if (aflag)
- oappend ("addr32 ");
- else
- oappend ("addr16 ");
- }
-
- if (*codep == 0x0f)
- {
- FETCH_DATA (info, codep + 2);
- dp = &dis386_twobyte[*++codep];
- need_modrm = twobyte_has_modrm[*codep];
- }
- else
- {
- dp = &dis386[*codep];
- need_modrm = onebyte_has_modrm[*codep];
- }
- codep++;
-
- if (need_modrm)
- {
- FETCH_DATA (info, codep + 1);
- mod = (*codep >> 6) & 3;
- reg = (*codep >> 3) & 7;
- rm = *codep & 7;
- }
-
- if (dp->name == NULL && dp->bytemode1 == FLOATCODE)
- {
- dofloat (aflag, dflag);
- }
- else
- {
- if (dp->name == NULL)
- dp = &grps[dp->bytemode1][reg];
-
- putop (dp->name, aflag, dflag);
-
- obufp = op1out;
- op_ad = 2;
- if (dp->op1)
- (*dp->op1)(dp->bytemode1, aflag, dflag);
-
- obufp = op2out;
- op_ad = 1;
- if (dp->op2)
- (*dp->op2)(dp->bytemode2, aflag, dflag);
-
- obufp = op3out;
- op_ad = 0;
- if (dp->op3)
- (*dp->op3)(dp->bytemode3, aflag, dflag);
- }
-
- obufp = obuf + strlen (obuf);
- for (i = strlen (obuf); i < 6; i++)
- oappend (" ");
- oappend (" ");
- (*info->fprintf_func) (info->stream, "%s", obuf);
-
- /* enter instruction is printed with operands in the
- * same order as the intel book; everything else
- * is printed in reverse order
- */
- if (enter_instruction)
- {
- first = op1out;
- second = op2out;
- third = op3out;
- op_ad = op_index[0];
- op_index[0] = op_index[2];
- op_index[2] = op_ad;
- }
- else
- {
- first = op3out;
- second = op2out;
- third = op1out;
- }
- needcomma = 0;
- if (*first)
- {
- if (op_index[0] != -1)
- (*info->print_address_func) (op_address[op_index[0]], info);
- else
- (*info->fprintf_func) (info->stream, "%s", first);
- needcomma = 1;
- }
- if (*second)
- {
- if (needcomma)
- (*info->fprintf_func) (info->stream, ",");
- if (op_index[1] != -1)
- (*info->print_address_func) (op_address[op_index[1]], info);
- else
- (*info->fprintf_func) (info->stream, "%s", second);
- needcomma = 1;
- }
- if (*third)
- {
- if (needcomma)
- (*info->fprintf_func) (info->stream, ",");
- if (op_index[2] != -1)
- (*info->print_address_func) (op_address[op_index[2]], info);
- else
- (*info->fprintf_func) (info->stream, "%s", third);
- }
- return (codep - inbuf);
-}
-
-static char *float_mem[] = {
- /* d8 */
- "fadds",
- "fmuls",
- "fcoms",
- "fcomps",
- "fsubs",
- "fsubrs",
- "fdivs",
- "fdivrs",
- /* d9 */
- "flds",
- "(bad)",
- "fsts",
- "fstps",
- "fldenv",
- "fldcw",
- "fNstenv",
- "fNstcw",
- /* da */
- "fiaddl",
- "fimull",
- "ficoml",
- "ficompl",
- "fisubl",
- "fisubrl",
- "fidivl",
- "fidivrl",
- /* db */
- "fildl",
- "(bad)",
- "fistl",
- "fistpl",
- "(bad)",
- "fldt",
- "(bad)",
- "fstpt",
- /* dc */
- "faddl",
- "fmull",
- "fcoml",
- "fcompl",
- "fsubl",
- "fsubrl",
- "fdivl",
- "fdivrl",
- /* dd */
- "fldl",
- "(bad)",
- "fstl",
- "fstpl",
- "frstor",
- "(bad)",
- "fNsave",
- "fNstsw",
- /* de */
- "fiadd",
- "fimul",
- "ficom",
- "ficomp",
- "fisub",
- "fisubr",
- "fidiv",
- "fidivr",
- /* df */
- "fild",
- "(bad)",
- "fist",
- "fistp",
- "fbld",
- "fildll",
- "fbstp",
- "fistpll",
-};
-
-#define ST OP_ST, 0
-#define STi OP_STi, 0
-
-#define FGRPd9_2 NULL, NULL, 0
-#define FGRPd9_4 NULL, NULL, 1
-#define FGRPd9_5 NULL, NULL, 2
-#define FGRPd9_6 NULL, NULL, 3
-#define FGRPd9_7 NULL, NULL, 4
-#define FGRPda_5 NULL, NULL, 5
-#define FGRPdb_4 NULL, NULL, 6
-#define FGRPde_3 NULL, NULL, 7
-#define FGRPdf_4 NULL, NULL, 8
-
-static struct dis386 float_reg[][8] = {
- /* d8 */
- {
- { "fadd", ST, STi },
- { "fmul", ST, STi },
- { "fcom", STi },
- { "fcomp", STi },
- { "fsub", ST, STi },
- { "fsubr", ST, STi },
- { "fdiv", ST, STi },
- { "fdivr", ST, STi },
- },
- /* d9 */
- {
- { "fld", STi },
- { "fxch", STi },
- { FGRPd9_2 },
- { "(bad)" },
- { FGRPd9_4 },
- { FGRPd9_5 },
- { FGRPd9_6 },
- { FGRPd9_7 },
- },
- /* da */
- {
- { "fcmovb", ST, STi },
- { "fcmove", ST, STi },
- { "fcmovbe",ST, STi },
- { "fcmovu", ST, STi },
- { "(bad)" },
- { FGRPda_5 },
- { "(bad)" },
- { "(bad)" },
- },
- /* db */
- {
- { "fcmovnb",ST, STi },
- { "fcmovne",ST, STi },
- { "fcmovnbe",ST, STi },
- { "fcmovnu",ST, STi },
- { FGRPdb_4 },
- { "fucomi", ST, STi },
- { "fcomi", ST, STi },
- { "(bad)" },
- },
- /* dc */
- {
- { "fadd", STi, ST },
- { "fmul", STi, ST },
- { "(bad)" },
- { "(bad)" },
- { "fsub", STi, ST },
- { "fsubr", STi, ST },
- { "fdiv", STi, ST },
- { "fdivr", STi, ST },
- },
- /* dd */
- {
- { "ffree", STi },
- { "(bad)" },
- { "fst", STi },
- { "fstp", STi },
- { "fucom", STi },
- { "fucomp", STi },
- { "(bad)" },
- { "(bad)" },
- },
- /* de */
- {
- { "faddp", STi, ST },
- { "fmulp", STi, ST },
- { "(bad)" },
- { FGRPde_3 },
- { "fsubp", STi, ST },
- { "fsubrp", STi, ST },
- { "fdivp", STi, ST },
- { "fdivrp", STi, ST },
- },
- /* df */
- {
- { "(bad)" },
- { "(bad)" },
- { "(bad)" },
- { "(bad)" },
- { FGRPdf_4 },
- { "fucomip",ST, STi },
- { "fcomip", ST, STi },
- { "(bad)" },
- },
-};
-
-
-static char *fgrps[][8] = {
- /* d9_2 0 */
- {
- "fnop","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)",
- },
-
- /* d9_4 1 */
- {
- "fchs","fabs","(bad)","(bad)","ftst","fxam","(bad)","(bad)",
- },
-
- /* d9_5 2 */
- {
- "fld1","fldl2t","fldl2e","fldpi","fldlg2","fldln2","fldz","(bad)",
- },
-
- /* d9_6 3 */
- {
- "f2xm1","fyl2x","fptan","fpatan","fxtract","fprem1","fdecstp","fincstp",
- },
-
- /* d9_7 4 */
- {
- "fprem","fyl2xp1","fsqrt","fsincos","frndint","fscale","fsin","fcos",
- },
-
- /* da_5 5 */
- {
- "(bad)","fucompp","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)",
- },
-
- /* db_4 6 */
- {
- "feni(287 only)","fdisi(287 only)","fNclex","fNinit",
- "fNsetpm(287 only)","(bad)","(bad)","(bad)",
- },
-
- /* de_3 7 */
- {
- "(bad)","fcompp","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)",
- },
-
- /* df_4 8 */
- {
- "fNstsw","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)",
- },
-};
-
-static void
-dofloat (aflag, dflag)
- int aflag;
- int dflag;
-{
- struct dis386 *dp;
- unsigned char floatop;
-
- floatop = codep[-1];
-
- if (mod != 3)
- {
- putop (float_mem[(floatop - 0xd8) * 8 + reg], aflag, dflag);
- obufp = op1out;
- OP_E (v_mode, aflag, dflag);
- return;
- }
- codep++;
-
- dp = &float_reg[floatop - 0xd8][reg];
- if (dp->name == NULL)
- {
- putop (fgrps[dp->bytemode1][rm], aflag, dflag);
- /* instruction fnstsw is only one with strange arg */
- if (floatop == 0xdf
- && FETCH_DATA (the_info, codep + 1)
- && *codep == 0xe0)
- strcpy (op1out, "%eax");
- }
- else
- {
- putop (dp->name, aflag, dflag);
- obufp = op1out;
- if (dp->op1)
- (*dp->op1)(dp->bytemode1, aflag, dflag);
- obufp = op2out;
- if (dp->op2)
- (*dp->op2)(dp->bytemode2, aflag, dflag);
- }
-}
-
-/* ARGSUSED */
-static int
-OP_ST (ignore, aflag, dflag)
- int ignore;
- int aflag;
- int dflag;
-{
- oappend ("%st");
- return (0);
-}
-
-/* ARGSUSED */
-static int
-OP_STi (ignore, aflag, dflag)
- int ignore;
- int aflag;
- int dflag;
-{
- sprintf (scratchbuf, "%%st(%d)", rm);
- oappend (scratchbuf);
- return (0);
-}
-
-
-/* capital letters in template are macros */
-static void
-putop (template, aflag, dflag)
- char *template;
- int aflag;
- int dflag;
-{
- char *p;
-
- for (p = template; *p; p++)
- {
- switch (*p)
- {
- default:
- *obufp++ = *p;
- break;
- case 'C': /* For jcxz/jecxz */
- if (aflag)
- *obufp++ = 'e';
- break;
- case 'N':
- if ((prefixes & PREFIX_FWAIT) == 0)
- *obufp++ = 'n';
- break;
- case 'S':
- /* operand size flag */
- if (dflag)
- *obufp++ = 'l';
- else
- *obufp++ = 'w';
- break;
- case 'W':
- /* operand size flag for cwtl, cbtw */
- if (dflag)
- *obufp++ = 'w';
- else
- *obufp++ = 'b';
- break;
- }
- }
- *obufp = 0;
-}
-
-static void
-oappend (s)
- char *s;
-{
- strcpy (obufp, s);
- obufp += strlen (s);
- *obufp = 0;
-}
-
-static void
-append_prefix ()
-{
- if (prefixes & PREFIX_CS)
- oappend ("%cs:");
- if (prefixes & PREFIX_DS)
- oappend ("%ds:");
- if (prefixes & PREFIX_SS)
- oappend ("%ss:");
- if (prefixes & PREFIX_ES)
- oappend ("%es:");
- if (prefixes & PREFIX_FS)
- oappend ("%fs:");
- if (prefixes & PREFIX_GS)
- oappend ("%gs:");
-}
-
-static int
-OP_indirE (bytemode, aflag, dflag)
- int bytemode;
- int aflag;
- int dflag;
-{
- oappend ("*");
- return OP_E (bytemode, aflag, dflag);
-}
-
-static int
-OP_E (bytemode, aflag, dflag)
- int bytemode;
- int aflag;
- int dflag;
-{
- int disp;
-
- /* skip mod/rm byte */
- codep++;
-
- if (mod == 3)
- {
- switch (bytemode)
- {
- case b_mode:
- oappend (names8[rm]);
- break;
- case w_mode:
- oappend (names16[rm]);
- break;
- case v_mode:
- if (dflag)
- oappend (names32[rm]);
- else
- oappend (names16[rm]);
- break;
- default:
- oappend ("<bad dis table>");
- break;
- }
- return 0;
- }
-
- disp = 0;
- append_prefix ();
-
- if (aflag) /* 32 bit address mode */
- {
- int havesib;
- int havebase;
- int base;
- int index = 0;
- int scale = 0;
-
- havesib = 0;
- havebase = 1;
- base = rm;
-
- if (base == 4)
- {
- havesib = 1;
- FETCH_DATA (the_info, codep + 1);
- scale = (*codep >> 6) & 3;
- index = (*codep >> 3) & 7;
- base = *codep & 7;
- codep++;
- }
-
- switch (mod)
- {
- case 0:
- if (base == 5)
- {
- havebase = 0;
- disp = get32 ();
- }
- break;
- case 1:
- FETCH_DATA (the_info, codep + 1);
- disp = *codep++;
- if ((disp & 0x80) != 0)
- disp -= 0x100;
- break;
- case 2:
- disp = get32 ();
- break;
- }
-
- if (mod != 0 || base == 5)
- {
- sprintf (scratchbuf, "0x%x", disp);
- oappend (scratchbuf);
- }
-
- if (havebase || (havesib && (index != 4 || scale != 0)))
- {
- oappend ("(");
- if (havebase)
- oappend (names32[base]);
- if (havesib)
- {
- if (index != 4)
- {
- sprintf (scratchbuf, ",%s", names32[index]);
- oappend (scratchbuf);
- }
- sprintf (scratchbuf, ",%d", 1 << scale);
- oappend (scratchbuf);
- }
- oappend (")");
- }
- }
- else
- { /* 16 bit address mode */
- switch (mod)
- {
- case 0:
- if (rm == 6)
- {
- disp = get16 ();
- if ((disp & 0x8000) != 0)
- disp -= 0x10000;
- }
- break;
- case 1:
- FETCH_DATA (the_info, codep + 1);
- disp = *codep++;
- if ((disp & 0x80) != 0)
- disp -= 0x100;
- break;
- case 2:
- disp = get16 ();
- if ((disp & 0x8000) != 0)
- disp -= 0x10000;
- break;
- }
-
- if (mod != 0 || rm == 6)
- {
- sprintf (scratchbuf, "0x%x", disp);
- oappend (scratchbuf);
- }
-
- if (mod != 0 || rm != 6)
- {
- oappend ("(");
- oappend (index16[rm]);
- oappend (")");
- }
- }
- return 0;
-}
-
-static int
-OP_G (bytemode, aflag, dflag)
- int bytemode;
- int aflag;
- int dflag;
-{
- switch (bytemode)
- {
- case b_mode:
- oappend (names8[reg]);
- break;
- case w_mode:
- oappend (names16[reg]);
- break;
- case d_mode:
- oappend (names32[reg]);
- break;
- case v_mode:
- if (dflag)
- oappend (names32[reg]);
- else
- oappend (names16[reg]);
- break;
- default:
- oappend ("<internal disassembler error>");
- break;
- }
- return (0);
-}
-
-static int
-get32 ()
-{
- int x = 0;
-
- FETCH_DATA (the_info, codep + 4);
- x = *codep++ & 0xff;
- x |= (*codep++ & 0xff) << 8;
- x |= (*codep++ & 0xff) << 16;
- x |= (*codep++ & 0xff) << 24;
- return (x);
-}
-
-static int
-get16 ()
-{
- int x = 0;
-
- FETCH_DATA (the_info, codep + 2);
- x = *codep++ & 0xff;
- x |= (*codep++ & 0xff) << 8;
- return (x);
-}
-
-static void
-set_op (op)
- int op;
-{
- op_index[op_ad] = op_ad;
- op_address[op_ad] = op;
-}
-
-static int
-OP_REG (code, aflag, dflag)
- int code;
- int aflag;
- int dflag;
-{
- char *s;
-
- switch (code)
- {
- case indir_dx_reg: s = "(%dx)"; break;
- case ax_reg: case cx_reg: case dx_reg: case bx_reg:
- case sp_reg: case bp_reg: case si_reg: case di_reg:
- s = names16[code - ax_reg];
- break;
- case es_reg: case ss_reg: case cs_reg:
- case ds_reg: case fs_reg: case gs_reg:
- s = names_seg[code - es_reg];
- break;
- case al_reg: case ah_reg: case cl_reg: case ch_reg:
- case dl_reg: case dh_reg: case bl_reg: case bh_reg:
- s = names8[code - al_reg];
- break;
- case eAX_reg: case eCX_reg: case eDX_reg: case eBX_reg:
- case eSP_reg: case eBP_reg: case eSI_reg: case eDI_reg:
- if (dflag)
- s = names32[code - eAX_reg];
- else
- s = names16[code - eAX_reg];
- break;
- default:
- s = "<internal disassembler error>";
- break;
- }
- oappend (s);
- return (0);
-}
-
-static int
-OP_I (bytemode, aflag, dflag)
- int bytemode;
- int aflag;
- int dflag;
-{
- int op;
-
- switch (bytemode)
- {
- case b_mode:
- FETCH_DATA (the_info, codep + 1);
- op = *codep++ & 0xff;
- break;
- case v_mode:
- if (dflag)
- op = get32 ();
- else
- op = get16 ();
- break;
- case w_mode:
- op = get16 ();
- break;
- default:
- oappend ("<internal disassembler error>");
- return (0);
- }
- sprintf (scratchbuf, "$0x%x", op);
- oappend (scratchbuf);
- return (0);
-}
-
-static int
-OP_sI (bytemode, aflag, dflag)
- int bytemode;
- int aflag;
- int dflag;
-{
- int op;
-
- switch (bytemode)
- {
- case b_mode:
- FETCH_DATA (the_info, codep + 1);
- op = *codep++;
- if ((op & 0x80) != 0)
- op -= 0x100;
- break;
- case v_mode:
- if (dflag)
- op = get32 ();
- else
- {
- op = get16();
- if ((op & 0x8000) != 0)
- op -= 0x10000;
- }
- break;
- case w_mode:
- op = get16 ();
- if ((op & 0x8000) != 0)
- op -= 0x10000;
- break;
- default:
- oappend ("<internal disassembler error>");
- return (0);
- }
- sprintf (scratchbuf, "$0x%x", op);
- oappend (scratchbuf);
- return (0);
-}
-
-static int
-OP_J (bytemode, aflag, dflag)
- int bytemode;
- int aflag;
- int dflag;
-{
- int disp;
- int mask = -1;
-
- switch (bytemode)
- {
- case b_mode:
- FETCH_DATA (the_info, codep + 1);
- disp = *codep++;
- if ((disp & 0x80) != 0)
- disp -= 0x100;
- break;
- case v_mode:
- if (dflag)
- disp = get32 ();
- else
- {
- disp = get16 ();
- if ((disp & 0x8000) != 0)
- disp -= 0x10000;
- /* for some reason, a data16 prefix on a jump instruction
- means that the pc is masked to 16 bits after the
- displacement is added! */
- mask = 0xffff;
- }
- break;
- default:
- oappend ("<internal disassembler error>");
- return (0);
- }
- disp = (start_pc + codep - start_codep + disp) & mask;
- set_op (disp);
- sprintf (scratchbuf, "0x%x", disp);
- oappend (scratchbuf);
- return (0);
-}
-
-/* ARGSUSED */
-static int
-OP_SEG (dummy, aflag, dflag)
- int dummy;
- int aflag;
- int dflag;
-{
- static char *sreg[] = {
- "%es","%cs","%ss","%ds","%fs","%gs","%?","%?",
- };
-
- oappend (sreg[reg]);
- return (0);
-}
-
-static int
-OP_DIR (size, aflag, dflag)
- int size;
- int aflag;
- int dflag;
-{
- int seg, offset;
-
- switch (size)
- {
- case lptr:
- if (aflag)
- {
- offset = get32 ();
- seg = get16 ();
- }
- else
- {
- offset = get16 ();
- seg = get16 ();
- }
- sprintf (scratchbuf, "0x%x,0x%x", seg, offset);
- oappend (scratchbuf);
- break;
- case v_mode:
- if (aflag)
- offset = get32 ();
- else
- {
- offset = get16 ();
- if ((offset & 0x8000) != 0)
- offset -= 0x10000;
- }
-
- offset = start_pc + codep - start_codep + offset;
- set_op (offset);
- sprintf (scratchbuf, "0x%x", offset);
- oappend (scratchbuf);
- break;
- default:
- oappend ("<internal disassembler error>");
- break;
- }
- return (0);
-}
-
-/* ARGSUSED */
-static int
-OP_OFF (bytemode, aflag, dflag)
- int bytemode;
- int aflag;
- int dflag;
-{
- int off;
-
- append_prefix ();
-
- if (aflag)
- off = get32 ();
- else
- off = get16 ();
-
- sprintf (scratchbuf, "0x%x", off);
- oappend (scratchbuf);
- return (0);
-}
-
-/* ARGSUSED */
-static int
-OP_ESDI (dummy, aflag, dflag)
- int dummy;
- int aflag;
- int dflag;
-{
- oappend ("%es:(");
- oappend (aflag ? "%edi" : "%di");
- oappend (")");
- return (0);
-}
-
-/* ARGSUSED */
-static int
-OP_DSSI (dummy, aflag, dflag)
- int dummy;
- int aflag;
- int dflag;
-{
- if ((prefixes
- & (PREFIX_CS
- | PREFIX_DS
- | PREFIX_SS
- | PREFIX_ES
- | PREFIX_FS
- | PREFIX_GS)) == 0)
- prefixes |= PREFIX_DS;
- append_prefix ();
- oappend ("(");
- oappend (aflag ? "%esi" : "%si");
- oappend (")");
- return (0);
-}
-
-#if 0
-/* Not used. */
-
-/* ARGSUSED */
-static int
-OP_ONE (dummy, aflag, dflag)
- int dummy;
- int aflag;
- int dflag;
-{
- oappend ("1");
- return (0);
-}
-
-#endif
-
-/* ARGSUSED */
-static int
-OP_C (dummy, aflag, dflag)
- int dummy;
- int aflag;
- int dflag;
-{
- codep++; /* skip mod/rm */
- sprintf (scratchbuf, "%%cr%d", reg);
- oappend (scratchbuf);
- return (0);
-}
-
-/* ARGSUSED */
-static int
-OP_D (dummy, aflag, dflag)
- int dummy;
- int aflag;
- int dflag;
-{
- codep++; /* skip mod/rm */
- sprintf (scratchbuf, "%%db%d", reg);
- oappend (scratchbuf);
- return (0);
-}
-
-/* ARGSUSED */
-static int
-OP_T (dummy, aflag, dflag)
- int dummy;
- int aflag;
- int dflag;
-{
- codep++; /* skip mod/rm */
- sprintf (scratchbuf, "%%tr%d", reg);
- oappend (scratchbuf);
- return (0);
-}
-
-static int
-OP_rm (bytemode, aflag, dflag)
- int bytemode;
- int aflag;
- int dflag;
-{
- switch (bytemode)
- {
- case d_mode:
- oappend (names32[rm]);
- break;
- case w_mode:
- oappend (names16[rm]);
- break;
- }
- return (0);
-}
-
-static int
-OP_MMX (bytemode, aflag, dflag)
- int bytemode;
- int aflag;
- int dflag;
-{
- sprintf (scratchbuf, "%%mm%d", reg);
- oappend (scratchbuf);
- return 0;
-}
-
-static int
-OP_EM (bytemode, aflag, dflag)
- int bytemode;
- int aflag;
- int dflag;
-{
- if (mod != 3)
- return OP_E (bytemode, aflag, dflag);
-
- codep++;
- sprintf (scratchbuf, "%%mm%d", rm);
- oappend (scratchbuf);
- return 0;
-}
-
-static int
-OP_MS (bytemode, aflag, dflag)
- int bytemode;
- int aflag;
- int dflag;
-{
- ++codep;
- sprintf (scratchbuf, "%%mm%d", rm);
- oappend (scratchbuf);
- return 0;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2025-03-12 10:52:09 +0000