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Bochs/bochs/cpu/logical8.cc
Stanislav Shwartsman 002c86660a reword all the CPU code in preparation for future CPU speedup implementation. 
Bochs emulation can be another 10-15% faster using technique described in paper
"Fast Microcode Interpretation with Transactional Commit/Abort"
http://amas-bt.cs.virginia.edu/2011proceedings/amasbt2011-p3.pdf
2011-07-06 20:01:18 +00:00

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/////////////////////////////////////////////////////////////////////////
// $Id$
/////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2001-2011 The Bochs Project
//
// 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., 51 Franklin St, Fifth Floor, Boston, MA B 02110-1301 USA
/////////////////////////////////////////////////////////////////////////
#define NEED_CPU_REG_SHORTCUTS 1
#include "bochs.h"
#include "cpu.h"
#define LOG_THIS BX_CPU_THIS_PTR
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::XOR_EbGbM(bxInstruction_c *i)
{
Bit8u op1, op2;
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
op1 = read_RMW_virtual_byte(i->seg(), eaddr);
op2 = BX_READ_8BIT_REGx(i->nnn(), i->extend8bitL());
op1 ^= op2;
write_RMW_virtual_byte(op1);
SET_FLAGS_OSZAPC_LOGIC_8(op1);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::XOR_GbEbR(bxInstruction_c *i)
{
Bit8u op1, op2;
op1 = BX_READ_8BIT_REGx(i->nnn(), i->extend8bitL());
op2 = BX_READ_8BIT_REGx(i->rm(), i->extend8bitL());
op1 ^= op2;
BX_WRITE_8BIT_REGx(i->nnn(), i->extend8bitL(), op1);
SET_FLAGS_OSZAPC_LOGIC_8(op1);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::XOR_ALIb(bxInstruction_c *i)
{
Bit8u op_8 = AL ^ i->Ib();
AL = op_8;
SET_FLAGS_OSZAPC_LOGIC_8(op_8);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::XOR_EbIbM(bxInstruction_c *i)
{
Bit8u op1, op2 = i->Ib();
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
op1 = read_RMW_virtual_byte(i->seg(), eaddr);
op1 ^= op2;
write_RMW_virtual_byte(op1);
SET_FLAGS_OSZAPC_LOGIC_8(op1);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::XOR_EbIbR(bxInstruction_c *i)
{
Bit8u op1, op2 = i->Ib();
op1 = BX_READ_8BIT_REGx(i->rm(), i->extend8bitL());
op1 ^= op2;
BX_WRITE_8BIT_REGx(i->rm(), i->extend8bitL(), op1);
SET_FLAGS_OSZAPC_LOGIC_8(op1);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::OR_EbIbM(bxInstruction_c *i)
{
Bit8u op1, op2 = i->Ib();
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
op1 = read_RMW_virtual_byte(i->seg(), eaddr);
op1 |= op2;
write_RMW_virtual_byte(op1);
SET_FLAGS_OSZAPC_LOGIC_8(op1);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::OR_EbIbR(bxInstruction_c *i)
{
Bit8u op1, op2 = i->Ib();
op1 = BX_READ_8BIT_REGx(i->rm(), i->extend8bitL());
op1 |= op2;
BX_WRITE_8BIT_REGx(i->rm(), i->extend8bitL(), op1);
SET_FLAGS_OSZAPC_LOGIC_8(op1);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::NOT_EbM(bxInstruction_c *i)
{
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
Bit8u op1_8 = read_RMW_virtual_byte(i->seg(), eaddr);
op1_8 = ~op1_8;
write_RMW_virtual_byte(op1_8);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::NOT_EbR(bxInstruction_c *i)
{
Bit8u op1_8 = BX_READ_8BIT_REGx(i->rm(), i->extend8bitL());
op1_8 = ~op1_8;
BX_WRITE_8BIT_REGx(i->rm(), i->extend8bitL(), op1_8);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::OR_EbGbM(bxInstruction_c *i)
{
Bit8u op1, op2;
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
op1 = read_RMW_virtual_byte(i->seg(), eaddr);
op2 = BX_READ_8BIT_REGx(i->nnn(), i->extend8bitL());
op1 |= op2;
write_RMW_virtual_byte(op1);
SET_FLAGS_OSZAPC_LOGIC_8(op1);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::OR_GbEbR(bxInstruction_c *i)
{
Bit8u op1, op2;
op1 = BX_READ_8BIT_REGx(i->nnn(), i->extend8bitL());
op2 = BX_READ_8BIT_REGx(i->rm(), i->extend8bitL());
op1 |= op2;
BX_WRITE_8BIT_REGx(i->nnn(), i->extend8bitL(), op1);
SET_FLAGS_OSZAPC_LOGIC_8(op1);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::OR_ALIb(bxInstruction_c *i)
{
Bit8u op_8 = AL | i->Ib();
AL = op_8;
SET_FLAGS_OSZAPC_LOGIC_8(op_8);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::AND_EbGbM(bxInstruction_c *i)
{
Bit8u op1, op2;
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
op1 = read_RMW_virtual_byte(i->seg(), eaddr);
op2 = BX_READ_8BIT_REGx(i->nnn(), i->extend8bitL());
op1 &= op2;
write_RMW_virtual_byte(op1);
SET_FLAGS_OSZAPC_LOGIC_8(op1);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::AND_GbEbR(bxInstruction_c *i)
{
Bit8u op1, op2;
op1 = BX_READ_8BIT_REGx(i->nnn(), i->extend8bitL());
op2 = BX_READ_8BIT_REGx(i->rm(), i->extend8bitL());
op1 &= op2;
BX_WRITE_8BIT_REGx(i->nnn(), i->extend8bitL(), op1);
SET_FLAGS_OSZAPC_LOGIC_8(op1);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::AND_ALIb(bxInstruction_c *i)
{
Bit8u op_8 = AL & i->Ib();
AL = op_8;
SET_FLAGS_OSZAPC_LOGIC_8(op_8);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::AND_EbIbM(bxInstruction_c *i)
{
Bit8u op1, op2 = i->Ib();
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
op1 = read_RMW_virtual_byte(i->seg(), eaddr);
op1 &= op2;
write_RMW_virtual_byte(op1);
SET_FLAGS_OSZAPC_LOGIC_8(op1);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::AND_EbIbR(bxInstruction_c *i)
{
Bit8u op1, op2 = i->Ib();
op1 = BX_READ_8BIT_REGx(i->rm(), i->extend8bitL());
op1 &= op2;
BX_WRITE_8BIT_REGx(i->rm(), i->extend8bitL(), op1);
SET_FLAGS_OSZAPC_LOGIC_8(op1);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::TEST_EbGbR(bxInstruction_c *i)
{
Bit8u op1, op2;
op1 = BX_READ_8BIT_REGx(i->rm(), i->extend8bitL());
op2 = BX_READ_8BIT_REGx(i->nnn(), i->extend8bitL());
op1 &= op2;
SET_FLAGS_OSZAPC_LOGIC_8(op1);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::TEST_ALIb(bxInstruction_c *i)
{
Bit8u op_8 = AL & i->Ib();
SET_FLAGS_OSZAPC_LOGIC_8(op_8);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::TEST_EbIbR(bxInstruction_c *i)
{
Bit8u op1 = BX_READ_8BIT_REGx(i->rm(), i->extend8bitL());
op1 &= i->Ib();
SET_FLAGS_OSZAPC_LOGIC_8(op1);
BX_NEXT_INSTR(i);
}
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