763 lines
14 KiB
C++
763 lines
14 KiB
C++
/////////////////////////////////////////////////////////////////////////
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// $Id: dis_groups.cc,v 1.5 2002-09-20 15:34:55 cbothamy Exp $
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/////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2001 MandrakeSoft S.A.
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//
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// MandrakeSoft S.A.
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// 43, rue d'Aboukir
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// 75002 Paris - France
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// http://www.linux-mandrake.com/
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// http://www.mandrakesoft.com/
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#include "bochs.h"
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// Floating point stuff
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void
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bx_disassemble_c::ST_STi(void) {dis_sprintf("*** ST_STi() unfinished ***");}
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void
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bx_disassemble_c::STi_ST(void) {dis_sprintf("*** STi_ST() unfinished ***");}
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void
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bx_disassemble_c::STi(void) {dis_sprintf("*** STi() unfinished ***");}
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// Debug, Test, and Control Register stuff
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void
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bx_disassemble_c::RdDd(void)
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{
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Bit8u mod_rm_byte, mod, opcode, rm;
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mod_rm_byte = fetch_byte();
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BX_DECODE_MODRM(mod_rm_byte, mod, opcode, rm);
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// only reg32 operand is valid
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if (mod != 0x3) {
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dis_sprintf("Invalid Opcode");
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}
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else {
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dis_sprintf("%s, DR%u", general_32bit_reg_name[rm], opcode);
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}
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}
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void
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bx_disassemble_c::DdRd(void)
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{
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Bit8u mod_rm_byte, mod, opcode, rm;
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mod_rm_byte = fetch_byte();
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BX_DECODE_MODRM(mod_rm_byte, mod, opcode, rm);
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// only reg32 operand is valid
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if (mod != 0x3) {
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dis_sprintf("Invalid Opcode");
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}
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else {
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dis_sprintf("DR%u, %s", opcode, general_32bit_reg_name[rm]);
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}
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}
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void
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bx_disassemble_c::RdCd(void)
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{
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Bit8u modrm;
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modrm = fetch_byte();
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if ( (modrm >> 6) != 3 ) {
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dis_sprintf("Invalid Opcode");
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}
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else {
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dis_sprintf("%s, CR%u",
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general_32bit_reg_name[modrm&0x7],
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(modrm>>3)&0x7
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);
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}
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}
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void
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bx_disassemble_c::CdRd(void)
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{
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Bit8u modrm;
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modrm = fetch_byte();
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if ( (modrm >> 6) != 3 ) {
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dis_sprintf("Invalid Opcode");
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}
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else {
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dis_sprintf("CR%u, %s",
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(modrm>>3)&0x7,
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general_32bit_reg_name[modrm&0x7]
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);
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}
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}
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void
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bx_disassemble_c::RdTd(void)
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{
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Bit8u mod_rm_byte, mod, opcode, rm;
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mod_rm_byte = fetch_byte();
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BX_DECODE_MODRM(mod_rm_byte, mod, opcode, rm);
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// only reg32 operand is valid and tr3 or above
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if (mod != 0x3 || opcode < 3) {
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dis_sprintf("Invalid Opcode");
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}
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else {
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dis_sprintf("TR%u, %s", opcode, general_32bit_reg_name[rm]);
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}
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}
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void
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bx_disassemble_c::TdRd(void)
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{
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Bit8u mod_rm_byte, mod, opcode, rm;
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mod_rm_byte = fetch_byte();
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BX_DECODE_MODRM(mod_rm_byte, mod, opcode, rm);
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// only reg32 operand is valid and tr3 or above
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if (mod != 0x3 || opcode < 3) {
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dis_sprintf("Invalid Opcode");
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}
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else {
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dis_sprintf("%s, TR%u", general_32bit_reg_name[rm], opcode);
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}
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}
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void
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bx_disassemble_c::Ms(void)
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{
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Bit8u mod_rm_byte, mod, opcode, rm;
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mod_rm_byte = peek_byte();
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BX_DECODE_MODRM(mod_rm_byte, mod, opcode, rm);
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// only memory operand is valid
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if (mod == 0x3) {
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dis_sprintf("Invalid Opcode");
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fetch_byte();
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}
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else {
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decode_exgx(BX_NO_REG_TYPE, BX_NO_REG_TYPE);
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}
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}
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void
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bx_disassemble_c::Mp(void)
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{
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GvMp();
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}
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void
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bx_disassemble_c::GvMa(void)
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{
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Bit8u mod_rm_byte, mod, opcode, rm;
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mod_rm_byte = peek_byte();
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BX_DECODE_MODRM(mod_rm_byte, mod, opcode, rm);
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// only memory operand is valid
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if (mod == 0x3) {
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dis_sprintf("Invalid Opcode");
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fetch_byte();
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}
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else {
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if (db_32bit_opsize) {
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decode_gxex(BX_GENERAL_32BIT_REG, BX_NO_REG_TYPE);
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}
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else {
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decode_gxex(BX_GENERAL_16BIT_REG, BX_NO_REG_TYPE);
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}
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}
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}
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void
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bx_disassemble_c::EwRw(void)
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{
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decode_exgx(BX_GENERAL_16BIT_REG, BX_GENERAL_16BIT_REG);
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}
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// Other un-implemented operand signatures
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void
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bx_disassemble_c::XBTS(void) {dis_sprintf("*** XBTS() unfinished ***");}
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void
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bx_disassemble_c::IBTS(void) {dis_sprintf("*** IBTS() unfinished ***");}
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void
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bx_disassemble_c::ALOb(void) {dis_sprintf("*** ALOb() unfinished ***");}
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void
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bx_disassemble_c::eAXOv(void)
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{
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if (db_32bit_opsize) {
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dis_sprintf("EAX, ");
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}
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else {
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dis_sprintf("AX, ");
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}
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if (db_32bit_addrsize) {
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Bit32u imm32;
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imm32 = fetch_dword();
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dis_sprintf("[%08x]", (unsigned) imm32);
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}
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else {
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Bit16u imm16;
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imm16 = fetch_word();
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dis_sprintf("[%04x]", (unsigned) imm16);
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}
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}
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void
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bx_disassemble_c::OveAX(void)
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{
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if (db_32bit_addrsize) {
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Bit32u imm32;
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imm32 = fetch_dword();
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dis_sprintf("[%08x], ", (unsigned) imm32);
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}
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else {
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Bit16u imm16;
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imm16 = fetch_word();
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dis_sprintf("[%04x], ", (unsigned) imm16);
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}
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if (db_32bit_opsize) {
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dis_sprintf("EAX");
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}
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else {
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dis_sprintf("AX");
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}
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}
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void
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bx_disassemble_c::XvYv(void)
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{
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char *esi, *edi;
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char *seg;
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if (seg_override)
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seg = seg_override;
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else
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seg = "DS";
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if (db_32bit_addrsize) {
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esi = "ESI";
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edi = "EDI";
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}
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else {
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esi = "SI";
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edi = "DI";
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}
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dis_sprintf("ES:[%s], %s:[%s]", edi, seg, esi);
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}
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void
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bx_disassemble_c::ObAL(void) {dis_sprintf("*** ObAL() unfinished ***");}
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void
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bx_disassemble_c::YbAL(void) {dis_sprintf("*** YbAL() unfinished ***");}
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void
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bx_disassemble_c::ALXb(void) {dis_sprintf("*** ALXb() unfinished ***");}
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void
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bx_disassemble_c::eAXXv(void) { dis_sprintf("*** eAXXv() unfinished ***"); }
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void
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bx_disassemble_c::Es(void) {dis_sprintf("*** Es() unfinished ***");}
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void
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bx_disassemble_c::Ea(void) {dis_sprintf("*** Ea() unfinished ***");}
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void
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bx_disassemble_c::Et(void) {dis_sprintf("*** Et() unfinished ***");}
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void
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bx_disassemble_c::Ed(void) {dis_sprintf("*** Ed() unfinished ***");}
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void
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bx_disassemble_c::El(void) {dis_sprintf("*** El() unfinished ***");}
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void
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bx_disassemble_c::Eq(void) {dis_sprintf("*** Eq() unfinished ***");}
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void
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bx_disassemble_c::GvEb(void)
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{
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#if BX_CPU_LEVEL > 2
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if (db_32bit_opsize)
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decode_gxex(BX_GENERAL_32BIT_REG, BX_GENERAL_8BIT_REG);
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else
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#endif /* BX_CPU_LEVEL > 2 */
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decode_gxex(BX_GENERAL_16BIT_REG, BX_GENERAL_8BIT_REG);
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}
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void
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bx_disassemble_c::Av(void)
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{
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if (db_32bit_opsize) {
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Bit32u imm32;
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imm32 = fetch_dword();
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dis_sprintf("%08x", (unsigned) imm32);
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}
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else {
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Bit16u imm16;
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imm16 = fetch_word();
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dis_sprintf("%04x", (unsigned) imm16);
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}
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}
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void
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bx_disassemble_c::Eb(void)
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{
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decode_exgx(BX_GENERAL_8BIT_REG, BX_NO_REG_TYPE);
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}
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void
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bx_disassemble_c::Eb1(void)
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{
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decode_exgx(BX_GENERAL_8BIT_REG, BX_NO_REG_TYPE);
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dis_sprintf(", 1");
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}
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void
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bx_disassemble_c::Ev1(void)
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{
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#if BX_CPU_LEVEL > 2
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if (db_32bit_opsize)
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decode_exgx(BX_GENERAL_32BIT_REG, BX_NO_REG_TYPE);
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else
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#endif /* BX_CPU_LEVEL > 2 */
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decode_exgx(BX_GENERAL_16BIT_REG, BX_NO_REG_TYPE);
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dis_sprintf(", 1");
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}
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void
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bx_disassemble_c::Iw(void)
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{
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Bit16u imm16;
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imm16 = fetch_word();
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dis_sprintf("#%04x", (unsigned) imm16);
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}
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void
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bx_disassemble_c::EbGb(void)
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{
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decode_exgx(BX_GENERAL_8BIT_REG, BX_GENERAL_8BIT_REG);
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}
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void
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bx_disassemble_c::EvGv(void)
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{
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#if BX_CPU_LEVEL > 2
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if (db_32bit_opsize)
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decode_exgx(BX_GENERAL_32BIT_REG, BX_GENERAL_32BIT_REG);
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else
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#endif /* BX_CPU_LEVEL > 2 */
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decode_exgx(BX_GENERAL_16BIT_REG, BX_GENERAL_16BIT_REG);
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}
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void
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bx_disassemble_c::GbEb(void)
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{
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decode_gxex(BX_GENERAL_8BIT_REG, BX_GENERAL_8BIT_REG);
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}
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void
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bx_disassemble_c::GvEv(void)
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{
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#if BX_CPU_LEVEL > 2
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if (db_32bit_opsize)
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decode_gxex(BX_GENERAL_32BIT_REG, BX_GENERAL_32BIT_REG);
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else
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#endif /* BX_CPU_LEVEL > 2 */
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decode_gxex(BX_GENERAL_16BIT_REG, BX_GENERAL_16BIT_REG);
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}
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void
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bx_disassemble_c::Ew(void)
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{
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decode_exgx(BX_GENERAL_16BIT_REG, BX_NO_REG_TYPE);
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}
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void
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bx_disassemble_c::GvEw(void)
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{
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if (db_32bit_opsize)
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decode_gxex(BX_GENERAL_32BIT_REG, BX_GENERAL_16BIT_REG);
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else
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decode_gxex(BX_GENERAL_16BIT_REG, BX_GENERAL_16BIT_REG);
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}
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void
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bx_disassemble_c::Jv(void)
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{
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#if BX_CPU_LEVEL > 2
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if (db_32bit_opsize) {
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Bit32u imm32;
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imm32 = fetch_dword();
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dis_sprintf("+#%08x", (unsigned) imm32);
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}
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else
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#endif
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{
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Bit16u imm16;
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imm16 = fetch_word();
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dis_sprintf("+#%04x", (unsigned) imm16);
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}
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}
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void
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bx_disassemble_c::EvIb(void)
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{
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Bit8u imm8;
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#if BX_CPU_LEVEL > 2
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if (db_32bit_opsize) {
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decode_exgx(BX_GENERAL_32BIT_REG, BX_NO_REG_TYPE);
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imm8 = fetch_byte();
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dis_sprintf(", #%02x", (unsigned) imm8);
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}
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else {
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#endif /* BX_CPU_LEVEL > 2 */
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decode_exgx(BX_GENERAL_16BIT_REG, BX_NO_REG_TYPE);
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imm8 = fetch_byte();
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dis_sprintf(", #%02x", (unsigned) imm8);
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#if BX_CPU_LEVEL > 2
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}
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#endif /* BX_CPU_LEVEL > 2 */
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}
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void
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bx_disassemble_c::Iv(void)
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{
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if (db_32bit_opsize) {
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Bit32u imm32;
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imm32 = fetch_dword();
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dis_sprintf("#%08x", (unsigned) imm32);
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}
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else {
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Bit16u imm16;
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imm16 = fetch_word();
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dis_sprintf("#%04x", (unsigned) imm16);
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}
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}
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void
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bx_disassemble_c::Ib(void)
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{
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Bit8u imm8;
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imm8 = fetch_byte();
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dis_sprintf("#%02x", imm8);
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}
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void
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bx_disassemble_c::Jb(void)
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{
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Bit8u imm8;
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imm8 = fetch_byte();
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dis_sprintf("+#%02x", (unsigned) imm8);
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}
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void
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bx_disassemble_c::EbIb(void)
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{
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Bit8u imm8;
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decode_exgx(BX_GENERAL_8BIT_REG, BX_NO_REG_TYPE);
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imm8 = fetch_byte();
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dis_sprintf(", #%02x", (unsigned) imm8);
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}
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void
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bx_disassemble_c::EvIv(void)
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{
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Bit16u imm16;
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#if BX_CPU_LEVEL > 2
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if (db_32bit_opsize) {
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Bit32u imm32;
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decode_exgx(BX_GENERAL_32BIT_REG, BX_NO_REG_TYPE);
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imm32 = fetch_dword();
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dis_sprintf(", #%08x", (unsigned) imm32);
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}
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else {
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#endif /* BX_CPU_LEVEL > 2 */
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decode_exgx(BX_GENERAL_16BIT_REG, BX_NO_REG_TYPE);
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imm16 = fetch_word();
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dis_sprintf(", #%04x", (unsigned) imm16);
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#if BX_CPU_LEVEL > 2
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}
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#endif /* BX_CPU_LEVEL > 2 */
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}
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void
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bx_disassemble_c::EwSw(void)
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{
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decode_exgx(BX_GENERAL_16BIT_REG, BX_SEGMENT_REG);
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}
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void
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bx_disassemble_c::GvM(void)
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{
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#if BX_CPU_LEVEL > 2
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if (db_32bit_opsize)
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decode_gxex(BX_GENERAL_32BIT_REG, BX_GENERAL_32BIT_REG);
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else
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#endif /* BX_CPU_LEVEL > 2 */
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decode_gxex(BX_GENERAL_16BIT_REG, BX_GENERAL_16BIT_REG);
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}
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void
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bx_disassemble_c::SwEw(void)
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{
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decode_gxex(BX_SEGMENT_REG, BX_GENERAL_16BIT_REG);
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}
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void
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bx_disassemble_c::Ev(void)
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{
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#if BX_CPU_LEVEL > 2
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if (db_32bit_opsize) {
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decode_exgx(BX_GENERAL_32BIT_REG, BX_NO_REG_TYPE);
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}
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else {
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#endif /* BX_CPU_LEVEL > 2 */
|
|
decode_exgx(BX_GENERAL_16BIT_REG, BX_NO_REG_TYPE);
|
|
#if BX_CPU_LEVEL > 2
|
|
}
|
|
#endif /* BX_CPU_LEVEL > 2 */
|
|
}
|
|
|
|
void
|
|
bx_disassemble_c::Ap(void)
|
|
{
|
|
|
|
#if BX_CPU_LEVEL > 2
|
|
if (db_32bit_opsize) {
|
|
Bit32u imm32;
|
|
Bit16u cs_selector;
|
|
|
|
imm32 = fetch_dword();
|
|
cs_selector = fetch_word();
|
|
dis_sprintf("%04x:%08x", (unsigned) cs_selector, (unsigned) imm32);
|
|
}
|
|
else
|
|
#endif /* BX_CPU_LEVEL > 2 */
|
|
{
|
|
Bit16u imm16;
|
|
Bit16u cs_selector;
|
|
|
|
imm16 = fetch_word();
|
|
cs_selector = fetch_word();
|
|
dis_sprintf("%04x:%04x", (unsigned) cs_selector, (unsigned) imm16);
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
bx_disassemble_c::XbYb(void)
|
|
{
|
|
char *esi, *edi;
|
|
char *seg;
|
|
|
|
if (db_32bit_addrsize) {
|
|
esi = "ESI";
|
|
edi = "EDI";
|
|
}
|
|
else {
|
|
esi = "SI";
|
|
edi = "DI";
|
|
}
|
|
|
|
if (seg_override)
|
|
seg = seg_override;
|
|
else
|
|
seg = "DS";
|
|
|
|
dis_sprintf("ES:[%s], %s:[%s]", edi, seg, esi);
|
|
}
|
|
|
|
|
|
void
|
|
bx_disassemble_c::YveAX(void)
|
|
{
|
|
char *eax, *edi;
|
|
|
|
if (db_32bit_opsize)
|
|
eax = "EAX";
|
|
else
|
|
eax = "AX";
|
|
|
|
if (db_32bit_addrsize)
|
|
edi = "EDI";
|
|
else
|
|
edi = "DI";
|
|
|
|
dis_sprintf("ES:[%s], %s", edi, eax);
|
|
}
|
|
|
|
void
|
|
bx_disassemble_c::GvMp(void)
|
|
{
|
|
Bit8u mod_rm_byte, mod, opcode, rm;
|
|
mod_rm_byte = peek_byte();
|
|
BX_DECODE_MODRM(mod_rm_byte, mod, opcode, rm);
|
|
// only memory operand is valid
|
|
if (mod == 0x3) {
|
|
dis_sprintf("Invalid Opcode");
|
|
fetch_byte();
|
|
}
|
|
else {
|
|
#if BX_CPU_LEVEL > 2
|
|
if (db_32bit_opsize)
|
|
decode_gxex(BX_GENERAL_32BIT_REG, BX_GENERAL_32BIT_REG);
|
|
else
|
|
#endif /* BX_CPU_LEVEL > 2 */
|
|
decode_gxex(BX_GENERAL_16BIT_REG, BX_GENERAL_16BIT_REG);
|
|
}
|
|
}
|
|
|
|
void
|
|
bx_disassemble_c::eAXEv(void)
|
|
{
|
|
#if BX_CPU_LEVEL > 2
|
|
if (db_32bit_opsize) {
|
|
dis_sprintf("EAX, ");
|
|
decode_gxex(BX_NO_REG_TYPE, BX_GENERAL_32BIT_REG);
|
|
}
|
|
else {
|
|
#endif /* BX_CPU_LEVEL > 2 */
|
|
dis_sprintf("AX, ");
|
|
decode_gxex(BX_NO_REG_TYPE, BX_GENERAL_16BIT_REG);
|
|
#if BX_CPU_LEVEL > 2
|
|
}
|
|
#endif /* BX_CPU_LEVEL > 2 */
|
|
}
|
|
|
|
void
|
|
bx_disassemble_c::Ep(void)
|
|
{
|
|
#if BX_CPU_LEVEL > 2
|
|
if (db_32bit_opsize) {
|
|
decode_exgx(BX_GENERAL_32BIT_REG, BX_NO_REG_TYPE);
|
|
}
|
|
else {
|
|
#endif /* BX_CPU_LEVEL > 2 */
|
|
decode_exgx(BX_GENERAL_16BIT_REG, BX_NO_REG_TYPE);
|
|
#if BX_CPU_LEVEL > 2
|
|
}
|
|
#endif /* BX_CPU_LEVEL > 2 */
|
|
}
|
|
|
|
void
|
|
bx_disassemble_c::eAX(void)
|
|
{
|
|
if (db_32bit_opsize) {
|
|
dis_sprintf("EAX");
|
|
}
|
|
else {
|
|
dis_sprintf("AX");
|
|
}
|
|
}
|
|
|
|
void
|
|
bx_disassemble_c::eCX(void)
|
|
{
|
|
if (db_32bit_opsize) {
|
|
dis_sprintf("ECX");
|
|
}
|
|
else {
|
|
dis_sprintf("CX");
|
|
}
|
|
}
|
|
|
|
void
|
|
bx_disassemble_c::eDX(void)
|
|
{
|
|
if (db_32bit_opsize) {
|
|
dis_sprintf("EDX");
|
|
}
|
|
else {
|
|
dis_sprintf("DX");
|
|
}
|
|
}
|
|
|
|
void
|
|
bx_disassemble_c::eBX(void)
|
|
{
|
|
if (db_32bit_opsize) {
|
|
dis_sprintf("EBX");
|
|
}
|
|
else {
|
|
dis_sprintf("BX");
|
|
}
|
|
}
|
|
|
|
void
|
|
bx_disassemble_c::eSP(void)
|
|
{
|
|
if (db_32bit_opsize) {
|
|
dis_sprintf("ESP");
|
|
}
|
|
else {
|
|
dis_sprintf("SP");
|
|
}
|
|
}
|
|
|
|
void
|
|
bx_disassemble_c::eBP(void)
|
|
{
|
|
if (db_32bit_opsize) {
|
|
dis_sprintf("EBP");
|
|
}
|
|
else {
|
|
dis_sprintf("BP");
|
|
}
|
|
}
|
|
|
|
void
|
|
bx_disassemble_c::eSI(void)
|
|
{
|
|
if (db_32bit_opsize) {
|
|
dis_sprintf("ESI");
|
|
}
|
|
else {
|
|
dis_sprintf("SI");
|
|
}
|
|
}
|
|
|
|
void
|
|
bx_disassemble_c::eDI(void)
|
|
{
|
|
if (db_32bit_opsize) {
|
|
dis_sprintf("EDI");
|
|
}
|
|
else {
|
|
dis_sprintf("DI");
|
|
}
|
|
}
|