b8d7f5c88e
into inline functions with asm() statements in cpu.h. This cleans up the *.cc code (which now doesn't have any asm()s in it), and centralizes the asm() code so constraints can be modified in one place. This also makes it easier to cover more instructions with asm()s for more efficient eflags handling.
466 lines
9.7 KiB
C++
466 lines
9.7 KiB
C++
/////////////////////////////////////////////////////////////////////////
|
|
// $Id: logical16.cc,v 1.15 2002-10-07 22:51:57 kevinlawton Exp $
|
|
/////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// Copyright (C) 2001 MandrakeSoft S.A.
|
|
//
|
|
// MandrakeSoft S.A.
|
|
// 43, rue d'Aboukir
|
|
// 75002 Paris - France
|
|
// http://www.linux-mandrake.com/
|
|
// http://www.mandrakesoft.com/
|
|
//
|
|
// This library is free software; you can redistribute it and/or
|
|
// modify it under the terms of the GNU Lesser General Public
|
|
// License as published by the Free Software Foundation; either
|
|
// version 2 of the License, or (at your option) any later version.
|
|
//
|
|
// This library 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
|
|
// Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public
|
|
// License along with this library; if not, write to the Free Software
|
|
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#define NEED_CPU_REG_SHORTCUTS 1
|
|
#include "bochs.h"
|
|
#define LOG_THIS BX_CPU_THIS_PTR
|
|
|
|
|
|
|
|
|
|
void
|
|
BX_CPU_C::XOR_EwGw(bxInstruction_c *i)
|
|
{
|
|
Bit16u op2_16, op1_16, result_16;
|
|
|
|
op2_16 = BX_READ_16BIT_REG(i->nnn());
|
|
|
|
if (i->modC0()) {
|
|
op1_16 = BX_READ_16BIT_REG(i->rm());
|
|
|
|
#if (defined(__i386__) && defined(__GNUC__) && BX_SupportHostAsms)
|
|
Bit32u flags32;
|
|
|
|
asmXor16(result_16, op1_16, op2_16, flags32);
|
|
setEFlagsOSZAPC(flags32);
|
|
#else
|
|
result_16 = op1_16 ^ op2_16;
|
|
#endif
|
|
BX_WRITE_16BIT_REG(i->rm(), result_16);
|
|
}
|
|
else {
|
|
read_RMW_virtual_word(i->seg(), RMAddr(i), &op1_16);
|
|
#if (defined(__i386__) && defined(__GNUC__) && BX_SupportHostAsms)
|
|
Bit32u flags32;
|
|
|
|
asmXor16(result_16, op1_16, op2_16, flags32);
|
|
setEFlagsOSZAPC(flags32);
|
|
#else
|
|
result_16 = op1_16 ^ op2_16;
|
|
#endif
|
|
Write_RMW_virtual_word(result_16);
|
|
}
|
|
|
|
#if !(defined(__i386__) && defined(__GNUC__) && BX_SupportHostAsms)
|
|
SET_FLAGS_OSZAPC_16(op1_16, op2_16, result_16, BX_INSTR_XOR16);
|
|
#endif
|
|
}
|
|
|
|
|
|
void
|
|
BX_CPU_C::XOR_GwEw(bxInstruction_c *i)
|
|
{
|
|
Bit16u op1_16, op2_16, result_16;
|
|
unsigned nnn = i->nnn();
|
|
|
|
op1_16 = BX_READ_16BIT_REG(nnn);
|
|
|
|
if (i->modC0()) {
|
|
op2_16 = BX_READ_16BIT_REG(i->rm());
|
|
}
|
|
else {
|
|
read_virtual_word(i->seg(), RMAddr(i), &op2_16);
|
|
}
|
|
|
|
result_16 = op1_16 ^ op2_16;
|
|
|
|
BX_WRITE_16BIT_REG(nnn, result_16);
|
|
|
|
SET_FLAGS_OSZAPC_16(op1_16, op2_16, result_16, BX_INSTR_XOR16);
|
|
}
|
|
|
|
|
|
void
|
|
BX_CPU_C::XOR_AXIw(bxInstruction_c *i)
|
|
{
|
|
Bit16u op1_16, op2_16, sum_16;
|
|
|
|
op1_16 = AX;
|
|
op2_16 = i->Iw();
|
|
|
|
sum_16 = op1_16 ^ op2_16;
|
|
|
|
AX = sum_16;
|
|
|
|
SET_FLAGS_OSZAPC_16(op1_16, op2_16, sum_16, BX_INSTR_XOR16);
|
|
}
|
|
|
|
void
|
|
BX_CPU_C::XOR_EwIw(bxInstruction_c *i)
|
|
{
|
|
Bit16u op2_16, op1_16, result_16;
|
|
|
|
|
|
op2_16 = i->Iw();
|
|
|
|
if (i->modC0()) {
|
|
op1_16 = BX_READ_16BIT_REG(i->rm());
|
|
result_16 = op1_16 ^ op2_16;
|
|
BX_WRITE_16BIT_REG(i->rm(), result_16);
|
|
}
|
|
else {
|
|
read_RMW_virtual_word(i->seg(), RMAddr(i), &op1_16);
|
|
result_16 = op1_16 ^ op2_16;
|
|
Write_RMW_virtual_word(result_16);
|
|
}
|
|
|
|
SET_FLAGS_OSZAPC_16(op1_16, op2_16, result_16, BX_INSTR_XOR16);
|
|
}
|
|
|
|
|
|
void
|
|
BX_CPU_C::OR_EwIw(bxInstruction_c *i)
|
|
{
|
|
Bit16u op2_16, op1_16, result_16;
|
|
|
|
|
|
op2_16 = i->Iw();
|
|
|
|
if (i->modC0()) {
|
|
op1_16 = BX_READ_16BIT_REG(i->rm());
|
|
result_16 = op1_16 | op2_16;
|
|
BX_WRITE_16BIT_REG(i->rm(), result_16);
|
|
}
|
|
else {
|
|
read_RMW_virtual_word(i->seg(), RMAddr(i), &op1_16);
|
|
result_16 = op1_16 | op2_16;
|
|
Write_RMW_virtual_word(result_16);
|
|
}
|
|
|
|
SET_FLAGS_OSZAPC_16(op1_16, op2_16, result_16, BX_INSTR_OR16);
|
|
}
|
|
|
|
|
|
void
|
|
BX_CPU_C::NOT_Ew(bxInstruction_c *i)
|
|
{
|
|
Bit16u op1_16, result_16;
|
|
|
|
if (i->modC0()) {
|
|
op1_16 = BX_READ_16BIT_REG(i->rm());
|
|
result_16 = ~op1_16;
|
|
BX_WRITE_16BIT_REG(i->rm(), result_16);
|
|
}
|
|
else {
|
|
read_RMW_virtual_word(i->seg(), RMAddr(i), &op1_16);
|
|
result_16 = ~op1_16;
|
|
Write_RMW_virtual_word(result_16);
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
BX_CPU_C::OR_EwGw(bxInstruction_c *i)
|
|
{
|
|
Bit16u op2_16, op1_16, result_16;
|
|
|
|
op2_16 = BX_READ_16BIT_REG(i->nnn());
|
|
|
|
if (i->modC0()) {
|
|
op1_16 = BX_READ_16BIT_REG(i->rm());
|
|
result_16 = op1_16 | op2_16;
|
|
BX_WRITE_16BIT_REG(i->rm(), result_16);
|
|
}
|
|
else {
|
|
read_RMW_virtual_word(i->seg(), RMAddr(i), &op1_16);
|
|
result_16 = op1_16 | op2_16;
|
|
Write_RMW_virtual_word(result_16);
|
|
}
|
|
|
|
SET_FLAGS_OSZAPC_16(op1_16, op2_16, result_16, BX_INSTR_OR16);
|
|
}
|
|
|
|
|
|
void
|
|
BX_CPU_C::OR_GwEw(bxInstruction_c *i)
|
|
{
|
|
Bit16u op1_16, op2_16, result_16;
|
|
|
|
op1_16 = BX_READ_16BIT_REG(i->nnn());
|
|
|
|
if (i->modC0()) {
|
|
op2_16 = BX_READ_16BIT_REG(i->rm());
|
|
}
|
|
else {
|
|
read_virtual_word(i->seg(), RMAddr(i), &op2_16);
|
|
}
|
|
|
|
#if (defined(__i386__) && defined(__GNUC__) && BX_SupportHostAsms)
|
|
Bit32u flags32;
|
|
|
|
asmOr16(result_16, op1_16, op2_16, flags32);
|
|
setEFlagsOSZAPC(flags32);
|
|
#else
|
|
result_16 = op1_16 | op2_16;
|
|
#endif
|
|
|
|
BX_WRITE_16BIT_REG(i->nnn(), result_16);
|
|
|
|
#if !(defined(__i386__) && defined(__GNUC__) && BX_SupportHostAsms)
|
|
SET_FLAGS_OSZAPC_16(op1_16, op2_16, result_16, BX_INSTR_OR16);
|
|
#endif
|
|
}
|
|
|
|
|
|
void
|
|
BX_CPU_C::OR_AXIw(bxInstruction_c *i)
|
|
{
|
|
Bit16u op1_16, op2_16, sum_16;
|
|
|
|
op1_16 = AX;
|
|
op2_16 = i->Iw();
|
|
|
|
sum_16 = op1_16 | op2_16;
|
|
|
|
AX = sum_16;
|
|
|
|
SET_FLAGS_OSZAPC_16(op1_16, op2_16, sum_16, BX_INSTR_OR16);
|
|
}
|
|
|
|
|
|
|
|
void
|
|
BX_CPU_C::AND_EwGw(bxInstruction_c *i)
|
|
{
|
|
Bit16u op2_16, op1_16, result_16;
|
|
|
|
op2_16 = BX_READ_16BIT_REG(i->nnn());
|
|
|
|
if (i->modC0()) {
|
|
op1_16 = BX_READ_16BIT_REG(i->rm());
|
|
|
|
#if (defined(__i386__) && defined(__GNUC__) && BX_SupportHostAsms)
|
|
Bit32u flags32;
|
|
|
|
asmAnd16(result_16, op1_16, op2_16, flags32);
|
|
setEFlagsOSZAPC(flags32);
|
|
#else
|
|
result_16 = op1_16 & op2_16;
|
|
#endif
|
|
|
|
BX_WRITE_16BIT_REG(i->rm(), result_16);
|
|
}
|
|
else {
|
|
read_RMW_virtual_word(i->seg(), RMAddr(i), &op1_16);
|
|
|
|
#if (defined(__i386__) && defined(__GNUC__) && BX_SupportHostAsms)
|
|
Bit32u flags32;
|
|
|
|
asmAnd16(result_16, op1_16, op2_16, flags32);
|
|
setEFlagsOSZAPC(flags32);
|
|
#else
|
|
result_16 = op1_16 & op2_16;
|
|
#endif
|
|
|
|
Write_RMW_virtual_word(result_16);
|
|
}
|
|
|
|
#if !(defined(__i386__) && defined(__GNUC__) && BX_SupportHostAsms)
|
|
SET_FLAGS_OSZAPC_16(op1_16, op2_16, result_16, BX_INSTR_AND16);
|
|
#endif
|
|
}
|
|
|
|
|
|
void
|
|
BX_CPU_C::AND_GwEw(bxInstruction_c *i)
|
|
{
|
|
Bit16u op1_16, op2_16, result_16;
|
|
|
|
op1_16 = BX_READ_16BIT_REG(i->nnn());
|
|
|
|
if (i->modC0()) {
|
|
op2_16 = BX_READ_16BIT_REG(i->rm());
|
|
}
|
|
else {
|
|
read_virtual_word(i->seg(), RMAddr(i), &op2_16);
|
|
}
|
|
|
|
#if (defined(__i386__) && defined(__GNUC__) && BX_SupportHostAsms)
|
|
Bit32u flags32;
|
|
|
|
asmAnd16(result_16, op1_16, op2_16, flags32);
|
|
setEFlagsOSZAPC(flags32);
|
|
#else
|
|
result_16 = op1_16 & op2_16;
|
|
#endif
|
|
|
|
BX_WRITE_16BIT_REG(i->nnn(), result_16);
|
|
|
|
#if !(defined(__i386__) && defined(__GNUC__) && BX_SupportHostAsms)
|
|
SET_FLAGS_OSZAPC_16(op1_16, op2_16, result_16, BX_INSTR_AND16);
|
|
#endif
|
|
}
|
|
|
|
|
|
void
|
|
BX_CPU_C::AND_AXIw(bxInstruction_c *i)
|
|
{
|
|
Bit16u op1_16, op2_16, result_16;
|
|
|
|
op1_16 = AX;
|
|
op2_16 = i->Iw();
|
|
|
|
#if (defined(__i386__) && defined(__GNUC__) && BX_SupportHostAsms)
|
|
Bit32u flags32;
|
|
|
|
asmAnd16(result_16, op1_16, op2_16, flags32);
|
|
setEFlagsOSZAPC(flags32);
|
|
#else
|
|
result_16 = op1_16 & op2_16;
|
|
#endif
|
|
|
|
AX = result_16;
|
|
|
|
#if !(defined(__i386__) && defined(__GNUC__) && BX_SupportHostAsms)
|
|
SET_FLAGS_OSZAPC_16(op1_16, op2_16, result_16, BX_INSTR_AND16);
|
|
#endif
|
|
}
|
|
|
|
void
|
|
BX_CPU_C::AND_EwIw(bxInstruction_c *i)
|
|
{
|
|
Bit16u op2_16, op1_16, result_16;
|
|
|
|
op2_16 = i->Iw();
|
|
|
|
if (i->modC0()) {
|
|
op1_16 = BX_READ_16BIT_REG(i->rm());
|
|
|
|
#if (defined(__i386__) && defined(__GNUC__) && BX_SupportHostAsms)
|
|
Bit32u flags32;
|
|
|
|
asmAnd16(result_16, op1_16, op2_16, flags32);
|
|
setEFlagsOSZAPC(flags32);
|
|
#else
|
|
result_16 = op1_16 & op2_16;
|
|
#endif
|
|
|
|
BX_WRITE_16BIT_REG(i->rm(), result_16);
|
|
}
|
|
else {
|
|
read_RMW_virtual_word(i->seg(), RMAddr(i), &op1_16);
|
|
|
|
#if (defined(__i386__) && defined(__GNUC__) && BX_SupportHostAsms)
|
|
Bit32u flags32;
|
|
|
|
asmAnd16(result_16, op1_16, op2_16, flags32);
|
|
setEFlagsOSZAPC(flags32);
|
|
#else
|
|
result_16 = op1_16 & op2_16;
|
|
#endif
|
|
|
|
Write_RMW_virtual_word(result_16);
|
|
}
|
|
|
|
#if !(defined(__i386__) && defined(__GNUC__) && BX_SupportHostAsms)
|
|
SET_FLAGS_OSZAPC_16(op1_16, op2_16, result_16, BX_INSTR_AND16);
|
|
#endif
|
|
}
|
|
|
|
|
|
void
|
|
BX_CPU_C::TEST_EwGw(bxInstruction_c *i)
|
|
{
|
|
Bit16u op2_16, op1_16;
|
|
|
|
op2_16 = BX_READ_16BIT_REG(i->nnn());
|
|
|
|
if (i->modC0()) {
|
|
op1_16 = BX_READ_16BIT_REG(i->rm());
|
|
}
|
|
else {
|
|
read_virtual_word(i->seg(), RMAddr(i), &op1_16);
|
|
}
|
|
|
|
#if (defined(__i386__) && defined(__GNUC__) && BX_SupportHostAsms)
|
|
Bit32u flags32;
|
|
|
|
asmTest16(op1_16, op2_16, flags32);
|
|
setEFlagsOSZAPC(flags32);
|
|
#else
|
|
Bit16u result_16;
|
|
result_16 = op1_16 & op2_16;
|
|
|
|
SET_FLAGS_OSZAPC_16(op1_16, op2_16, result_16, BX_INSTR_TEST16);
|
|
#endif
|
|
}
|
|
|
|
|
|
|
|
void
|
|
BX_CPU_C::TEST_AXIw(bxInstruction_c *i)
|
|
{
|
|
Bit16u op2_16, op1_16;
|
|
|
|
op1_16 = AX;
|
|
op2_16 = i->Iw();
|
|
|
|
#if (defined(__i386__) && defined(__GNUC__) && BX_SupportHostAsms)
|
|
Bit32u flags32;
|
|
|
|
asmTest16(op1_16, op2_16, flags32);
|
|
setEFlagsOSZAPC(flags32);
|
|
#else
|
|
Bit16u result_16;
|
|
result_16 = op1_16 & op2_16;
|
|
|
|
SET_FLAGS_OSZAPC_16(op1_16, op2_16, result_16, BX_INSTR_TEST16);
|
|
#endif
|
|
}
|
|
|
|
|
|
void
|
|
BX_CPU_C::TEST_EwIw(bxInstruction_c *i)
|
|
{
|
|
Bit16u op2_16, op1_16;
|
|
|
|
op2_16 = i->Iw();
|
|
|
|
if (i->modC0()) {
|
|
op1_16 = BX_READ_16BIT_REG(i->rm());
|
|
}
|
|
else {
|
|
read_virtual_word(i->seg(), RMAddr(i), &op1_16);
|
|
}
|
|
|
|
#if (defined(__i386__) && defined(__GNUC__) && BX_SupportHostAsms)
|
|
Bit32u flags32;
|
|
|
|
asmTest16(op1_16, op2_16, flags32);
|
|
setEFlagsOSZAPC(flags32);
|
|
#else
|
|
Bit16u result_16;
|
|
result_16 = op1_16 & op2_16;
|
|
|
|
SET_FLAGS_OSZAPC_16(op1_16, op2_16, result_16, BX_INSTR_TEST16);
|
|
#endif
|
|
}
|