Bochs/bochs/cpu/logical32.cc

/////////////////////////////////////////////////////////////////////////
// $Id: logical32.cc,v 1.26 2006-03-26 18:58:01 sshwarts 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"
#include "cpu.h"
#define LOG_THIS BX_CPU_THIS_PTR


void BX_CPU_C::XOR_EdGd(bxInstruction_c *i)
{
  Bit32u op2_32, op1_32, result_32;

  op2_32 = BX_READ_32BIT_REG(i->nnn());

  if (i->modC0()) {
    op1_32 = BX_READ_32BIT_REG(i->rm());
    result_32 = op1_32 ^ op2_32;
    BX_WRITE_32BIT_REGZ(i->rm(), result_32);
  }
  else {
    read_RMW_virtual_dword(i->seg(), RMAddr(i), &op1_32);
    result_32 = op1_32 ^ op2_32;
    write_RMW_virtual_dword(result_32);
  }

  SET_FLAGS_OSZAPC_RESULT_32(result_32, BX_INSTR_LOGIC32);
}

void BX_CPU_C::XOR_GdEd(bxInstruction_c *i)
{
  Bit32u op1_32, op2_32, result_32;
  unsigned nnn = i->nnn();

  op1_32 = BX_READ_32BIT_REG(nnn);

  if (i->modC0()) {
    op2_32 = BX_READ_32BIT_REG(i->rm());
  }
  else {
    read_virtual_dword(i->seg(), RMAddr(i), &op2_32);
  }

  result_32 = op1_32 ^ op2_32;

  BX_WRITE_32BIT_REGZ(nnn, result_32);

  SET_FLAGS_OSZAPC_RESULT_32(result_32, BX_INSTR_LOGIC32);
}

void BX_CPU_C::XOR_EAXId(bxInstruction_c *i)
{
  Bit32u op1_32, op2_32, sum_32;

  op1_32 = EAX;
  op2_32 = i->Id();

  sum_32 = op1_32 ^ op2_32;

#if BX_SUPPORT_X86_64
  RAX = sum_32;
#else
  EAX = sum_32;
#endif

  SET_FLAGS_OSZAPC_RESULT_32(sum_32, BX_INSTR_LOGIC32);
}

void BX_CPU_C::XOR_EdId(bxInstruction_c *i)
{
  Bit32u op2_32, op1_32, result_32;

  op2_32 = i->Id();

  if (i->modC0()) {
    op1_32 = BX_READ_32BIT_REG(i->rm());
    result_32 = op1_32 ^ op2_32;
    BX_WRITE_32BIT_REGZ(i->rm(), result_32);
  }
  else {
    read_RMW_virtual_dword(i->seg(), RMAddr(i), &op1_32);
    result_32 = op1_32 ^ op2_32;
    write_RMW_virtual_dword(result_32);
  }

  SET_FLAGS_OSZAPC_RESULT_32(result_32, BX_INSTR_LOGIC32);
}

void BX_CPU_C::OR_EdId(bxInstruction_c *i)
{
  Bit32u op2_32, op1_32, result_32;

  op2_32 = i->Id();

  if (i->modC0()) {
    op1_32 = BX_READ_32BIT_REG(i->rm());
    result_32 = op1_32 | op2_32;
    BX_WRITE_32BIT_REGZ(i->rm(), result_32);
  }
  else {
    read_RMW_virtual_dword(i->seg(), RMAddr(i), &op1_32);
    result_32 = op1_32 | op2_32;
    write_RMW_virtual_dword(result_32);
  }

  SET_FLAGS_OSZAPC_RESULT_32(result_32, BX_INSTR_LOGIC32);
}

void BX_CPU_C::NOT_Ed(bxInstruction_c *i)
{
  Bit32u op1_32, result_32;

  if (i->modC0()) {
    op1_32 = BX_READ_32BIT_REG(i->rm());
    result_32 = ~op1_32;
    BX_WRITE_32BIT_REGZ(i->rm(), result_32);
  }
  else {
    read_RMW_virtual_dword(i->seg(), RMAddr(i), &op1_32);
    result_32 = ~op1_32;
    write_RMW_virtual_dword(result_32);
  }
}

void BX_CPU_C::OR_EdGd(bxInstruction_c *i)
{
  Bit32u op2_32, op1_32, result_32;

  op2_32 = BX_READ_32BIT_REG(i->nnn());

  if (i->modC0()) {
    op1_32 = BX_READ_32BIT_REG(i->rm());
    result_32 = op1_32 | op2_32;
    BX_WRITE_32BIT_REGZ(i->rm(), result_32);
  }
  else {
    read_RMW_virtual_dword(i->seg(), RMAddr(i), &op1_32);
    result_32 = op1_32 | op2_32;
    write_RMW_virtual_dword(result_32);
  }

  SET_FLAGS_OSZAPC_RESULT_32(result_32, BX_INSTR_LOGIC32);
}

void BX_CPU_C::OR_GdEd(bxInstruction_c *i)
{
  Bit32u op1_32, op2_32, result_32;

  op1_32 = BX_READ_32BIT_REG(i->nnn());

  if (i->modC0()) {
    op2_32 = BX_READ_32BIT_REG(i->rm());
  }
  else {
    read_virtual_dword(i->seg(), RMAddr(i), &op2_32);
  }

#if defined(BX_HostAsm_Or32)
  Bit32u flags32;
  asmOr32(result_32, op1_32, op2_32, flags32);
  setEFlagsOSZAPC(flags32);
#else
  result_32 = op1_32 | op2_32;
  SET_FLAGS_OSZAPC_RESULT_32(result_32, BX_INSTR_LOGIC32);
#endif

  BX_WRITE_32BIT_REGZ(i->nnn(), result_32);
}

void BX_CPU_C::OR_EAXId(bxInstruction_c *i)
{
  Bit32u op1_32, op2_32, sum_32;

  op1_32 = EAX;
  op2_32 = i->Id();
  sum_32 = op1_32 | op2_32;

#if BX_SUPPORT_X86_64
  RAX = sum_32;
#else
  EAX = sum_32;
#endif

  SET_FLAGS_OSZAPC_RESULT_32(sum_32, BX_INSTR_LOGIC32);
}

void BX_CPU_C::AND_EdGd(bxInstruction_c *i)
{
  Bit32u op2_32, op1_32, result_32;

  op2_32 = BX_READ_32BIT_REG(i->nnn());

  if (i->modC0()) {
    op1_32 = BX_READ_32BIT_REG(i->rm());

#if defined(BX_HostAsm_And32)
    Bit32u flags32;
    asmAnd32(result_32, op1_32, op2_32, flags32);
    setEFlagsOSZAPC(flags32);
#else
    result_32 = op1_32 & op2_32;
#endif

    BX_WRITE_32BIT_REGZ(i->rm(), result_32);
  }
  else {
    read_RMW_virtual_dword(i->seg(), RMAddr(i), &op1_32);

#if defined(BX_HostAsm_And32)
    Bit32u flags32;
    asmAnd32(result_32, op1_32, op2_32, flags32);
    setEFlagsOSZAPC(flags32);
#else
    result_32 = op1_32 & op2_32;
#endif

    write_RMW_virtual_dword(result_32);
  }

#if !defined(BX_HostAsm_And32)
  SET_FLAGS_OSZAPC_RESULT_32(result_32, BX_INSTR_LOGIC32);
#endif
}

void BX_CPU_C::AND_GdEd(bxInstruction_c *i)
{
  Bit32u op1_32, op2_32, result_32;

  op1_32 = BX_READ_32BIT_REG(i->nnn());

  if (i->modC0()) {
    op2_32 = BX_READ_32BIT_REG(i->rm());
  }
  else {
    read_virtual_dword(i->seg(), RMAddr(i), &op2_32);
  }

#if defined(BX_HostAsm_And32)
  Bit32u flags32;
  asmAnd32(result_32, op1_32, op2_32, flags32);
  setEFlagsOSZAPC(flags32);
#else
  result_32 = op1_32 & op2_32;
  SET_FLAGS_OSZAPC_RESULT_32(result_32, BX_INSTR_LOGIC32);
#endif

  BX_WRITE_32BIT_REGZ(i->nnn(), result_32);
}

void BX_CPU_C::AND_EAXId(bxInstruction_c *i)
{
  Bit32u op1_32, op2_32, result_32;

  op1_32 = EAX;
  op2_32 = i->Id();

#if defined(BX_HostAsm_And32)
  Bit32u flags32;
  asmAnd32(result_32, op1_32, op2_32, flags32);
  setEFlagsOSZAPC(flags32);
#else
  result_32 = op1_32 & op2_32;
  SET_FLAGS_OSZAPC_RESULT_32(result_32, BX_INSTR_LOGIC32);
#endif

#if BX_SUPPORT_X86_64
  RAX = result_32;
#else
  EAX = result_32;
#endif
}

void BX_CPU_C::AND_EdId(bxInstruction_c *i)
{
  Bit32u op2_32, op1_32, result_32;

  op2_32 = i->Id();

  if (i->modC0()) {
    op1_32 = BX_READ_32BIT_REG(i->rm());

#if defined(BX_HostAsm_And32)
    Bit32u flags32;
    asmAnd32(result_32, op1_32, op2_32, flags32);
    setEFlagsOSZAPC(flags32);
#else
    result_32 = op1_32 & op2_32;
#endif

    BX_WRITE_32BIT_REGZ(i->rm(), result_32);
  }
  else {
    read_RMW_virtual_dword(i->seg(), RMAddr(i), &op1_32);

#if defined(BX_HostAsm_And32)
    Bit32u flags32;
    asmAnd32(result_32, op1_32, op2_32, flags32);
    setEFlagsOSZAPC(flags32);
#else
    result_32 = op1_32 & op2_32;
#endif

    write_RMW_virtual_dword(result_32);
  }

#if !defined(BX_HostAsm_And32)
  SET_FLAGS_OSZAPC_RESULT_32(result_32, BX_INSTR_LOGIC32);
#endif
}

void BX_CPU_C::TEST_EdGd(bxInstruction_c *i)
{
  Bit32u op2_32, op1_32;

  op2_32 = BX_READ_32BIT_REG(i->nnn());

  if (i->modC0()) {
    op1_32 = BX_READ_32BIT_REG(i->rm());
  }
  else {
    read_virtual_dword(i->seg(), RMAddr(i), &op1_32);
  }

#if defined(BX_HostAsm_Test32)
  Bit32u flags32;
  asmTest32(op1_32, op2_32, flags32);
  setEFlagsOSZAPC(flags32);
#else
  Bit32u result_32 = op1_32 & op2_32;
  SET_FLAGS_OSZAPC_RESULT_32(result_32, BX_INSTR_LOGIC32);
#endif
}

void BX_CPU_C::TEST_EAXId(bxInstruction_c *i)
{
  Bit32u op2_32, op1_32;

  op1_32 = EAX;
  op2_32 = i->Id();

#if defined(BX_HostAsm_Test32)
  Bit32u flags32;
  asmTest32(op1_32, op2_32, flags32);
  setEFlagsOSZAPC(flags32);
#else
  Bit32u result_32 = op1_32 & op2_32;
  SET_FLAGS_OSZAPC_RESULT_32(result_32, BX_INSTR_LOGIC32);
#endif
}

void BX_CPU_C::TEST_EdId(bxInstruction_c *i)
{
  Bit32u op2_32, op1_32;

  op2_32 = i->Id();

  if (i->modC0()) {
    op1_32 = BX_READ_32BIT_REG(i->rm());
  }
  else {
    read_virtual_dword(i->seg(), RMAddr(i), &op1_32);
  }

#if defined(BX_HostAsm_Test32)
  Bit32u flags32;
  asmTest32(op1_32, op2_32, flags32);
  setEFlagsOSZAPC(flags32);
#else
  Bit32u result_32 = op1_32 & op2_32;
  SET_FLAGS_OSZAPC_RESULT_32(result_32, BX_INSTR_LOGIC32);
#endif
}