mirrors/Bochs
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
79acd6b1ab
Bochs/bochs/cpu/bit.cc
Stanislav Shwartsman cc694377b9 Standartization of Bochs instruction handlers. 
Bochs instruction emulation handlers won't refer to direct fields of instructions like MODRM.NNN or MODRM.RM anymore.
Use generic source/destination indications like SRC1, SRC2 and DST.
All handlers are modified to support new notation. In addition fetchDecode module was modified to assign sources to instructions properly.

Immediate benefits:
- Removal of several duplicated handlers (FMA3 duplicated with FMA4 is a trivial example)
- Simpler to understand fetch-decode code

Future benefits:
- Integration of disassembler into Bochs CPU module, ability to disasm bx_instruction_c instance (planned)

Huge patch. Almost all source files wre modified.
2012-08-05 13:52:40 +00:00

400 lines
10 KiB
C++
Raw Blame History

/////////////////////////////////////////////////////////////////////////
// $Id$
/////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2001-2012 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
#if BX_CPU_LEVEL >= 3
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SETO_EbM(bxInstruction_c *i)
{
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
Bit8u result_8 = getB_OF();
write_virtual_byte(i->seg(), eaddr, result_8);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SETO_EbR(bxInstruction_c *i)
{
BX_WRITE_8BIT_REGx(i->dst(), i->extend8bitL(), getB_OF());
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SETNO_EbM(bxInstruction_c *i)
{
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
Bit8u result_8 = !getB_OF();
write_virtual_byte(i->seg(), eaddr, result_8);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SETNO_EbR(bxInstruction_c *i)
{
BX_WRITE_8BIT_REGx(i->dst(), i->extend8bitL(), !getB_OF());
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SETB_EbM(bxInstruction_c *i)
{
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
Bit8u result_8 = getB_CF();
write_virtual_byte(i->seg(), eaddr, result_8);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SETB_EbR(bxInstruction_c *i)
{
BX_WRITE_8BIT_REGx(i->dst(), i->extend8bitL(), getB_CF());
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SETNB_EbM(bxInstruction_c *i)
{
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
Bit8u result_8 = !getB_CF();
write_virtual_byte(i->seg(), eaddr, result_8);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SETNB_EbR(bxInstruction_c *i)
{
BX_WRITE_8BIT_REGx(i->dst(), i->extend8bitL(), !getB_CF());
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SETZ_EbM(bxInstruction_c *i)
{
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
Bit8u result_8 = getB_ZF();
write_virtual_byte(i->seg(), eaddr, result_8);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SETZ_EbR(bxInstruction_c *i)
{
BX_WRITE_8BIT_REGx(i->dst(), i->extend8bitL(), getB_ZF());
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SETNZ_EbM(bxInstruction_c *i)
{
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
Bit8u result_8 = !getB_ZF();
write_virtual_byte(i->seg(), eaddr, result_8);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SETNZ_EbR(bxInstruction_c *i)
{
BX_WRITE_8BIT_REGx(i->dst(), i->extend8bitL(), !getB_ZF());
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SETBE_EbM(bxInstruction_c *i)
{
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
Bit8u result_8 = (getB_CF() | getB_ZF());
write_virtual_byte(i->seg(), eaddr, result_8);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SETBE_EbR(bxInstruction_c *i)
{
BX_WRITE_8BIT_REGx(i->dst(), i->extend8bitL(), (getB_CF() | getB_ZF()));
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SETNBE_EbM(bxInstruction_c *i)
{
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
Bit8u result_8 = !(getB_CF() | getB_ZF());
write_virtual_byte(i->seg(), eaddr, result_8);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SETNBE_EbR(bxInstruction_c *i)
{
BX_WRITE_8BIT_REGx(i->dst(), i->extend8bitL(), !(getB_CF() | getB_ZF()));
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SETS_EbM(bxInstruction_c *i)
{
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
Bit8u result_8 = getB_SF();
write_virtual_byte(i->seg(), eaddr, result_8);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SETS_EbR(bxInstruction_c *i)
{
BX_WRITE_8BIT_REGx(i->dst(), i->extend8bitL(), getB_SF());
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SETNS_EbM(bxInstruction_c *i)
{
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
Bit8u result_8 = !getB_SF();
write_virtual_byte(i->seg(), eaddr, result_8);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SETNS_EbR(bxInstruction_c *i)
{
BX_WRITE_8BIT_REGx(i->dst(), i->extend8bitL(), !getB_SF());
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SETP_EbM(bxInstruction_c *i)
{
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
Bit8u result_8 = getB_PF();
write_virtual_byte(i->seg(), eaddr, result_8);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SETP_EbR(bxInstruction_c *i)
{
BX_WRITE_8BIT_REGx(i->dst(), i->extend8bitL(), getB_PF());
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SETNP_EbM(bxInstruction_c *i)
{
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
Bit8u result_8 = !getB_PF();
write_virtual_byte(i->seg(), eaddr, result_8);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SETNP_EbR(bxInstruction_c *i)
{
BX_WRITE_8BIT_REGx(i->dst(), i->extend8bitL(), !getB_PF());
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SETL_EbM(bxInstruction_c *i)
{
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
Bit8u result_8 = (getB_SF() ^ getB_OF());
write_virtual_byte(i->seg(), eaddr, result_8);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SETL_EbR(bxInstruction_c *i)
{
BX_WRITE_8BIT_REGx(i->dst(), i->extend8bitL(), (getB_SF() ^ getB_OF()));
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SETNL_EbM(bxInstruction_c *i)
{
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
Bit8u result_8 = !(getB_SF() ^ getB_OF());
write_virtual_byte(i->seg(), eaddr, result_8);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SETNL_EbR(bxInstruction_c *i)
{
BX_WRITE_8BIT_REGx(i->dst(), i->extend8bitL(), !(getB_SF() ^ getB_OF()));
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SETLE_EbM(bxInstruction_c *i)
{
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
Bit8u result_8 = getB_ZF() | (getB_SF() ^ getB_OF());
write_virtual_byte(i->seg(), eaddr, result_8);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SETLE_EbR(bxInstruction_c *i)
{
Bit8u result_8 = getB_ZF() | (getB_SF() ^ getB_OF());
BX_WRITE_8BIT_REGx(i->dst(), i->extend8bitL(), result_8);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SETNLE_EbM(bxInstruction_c *i)
{
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
Bit8u result_8 = !(getB_ZF() | (getB_SF() ^ getB_OF()));
write_virtual_byte(i->seg(), eaddr, result_8);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SETNLE_EbR(bxInstruction_c *i)
{
Bit8u result_8 = !(getB_ZF() | (getB_SF() ^ getB_OF()));
BX_WRITE_8BIT_REGx(i->dst(), i->extend8bitL(), result_8);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::BSWAP_RX(bxInstruction_c *i)
{
BX_ERROR(("BSWAP with 16-bit opsize: undefined behavior !"));
BX_WRITE_16BIT_REG(i->dst(), 0);
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::BSWAP_ERX(bxInstruction_c *i)
{
Bit32u val32 = BX_READ_32BIT_REG(i->dst());
BX_WRITE_32BIT_REGZ(i->dst(), bx_bswap32(val32));
BX_NEXT_INSTR(i);
}
#if BX_SUPPORT_X86_64
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::BSWAP_RRX(bxInstruction_c *i)
{
Bit64u val64 = BX_READ_64BIT_REG(i->dst());
BX_WRITE_64BIT_REG(i->dst(), bx_bswap64(val64));
BX_NEXT_INSTR(i);
}
#endif
#if BX_CPU_LEVEL >= 6
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVBE_GwMw(bxInstruction_c *i)
{
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
Bit16u val16 = read_virtual_word(i->seg(), eaddr);
BX_WRITE_16BIT_REG(i->dst(), bx_bswap16(val16));
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVBE_MwGw(bxInstruction_c *i)
{
Bit16u val16 = BX_READ_16BIT_REG(i->src());
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
write_virtual_word(i->seg(), eaddr, bx_bswap16(val16));
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVBE_GdMd(bxInstruction_c *i)
{
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
Bit32u val32 = read_virtual_dword(i->seg(), eaddr);
BX_WRITE_32BIT_REGZ(i->dst(), bx_bswap32(val32));
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVBE_MdGd(bxInstruction_c *i)
{
Bit32u val32 = BX_READ_32BIT_REG(i->src());
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
write_virtual_dword(i->seg(), eaddr, bx_bswap32(val32));
BX_NEXT_INSTR(i);
}
#if BX_SUPPORT_X86_64
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVBE_GqMq(bxInstruction_c *i)
{
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
Bit64u val64 = read_virtual_qword(i->seg(), eaddr);
BX_WRITE_64BIT_REG(i->dst(), bx_bswap64(val64));
BX_NEXT_INSTR(i);
}
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOVBE_MqGq(bxInstruction_c *i)
{
Bit64u val64 = BX_READ_64BIT_REG(i->src());
bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
write_virtual_qword_64(i->seg(), eaddr, bx_bswap64(val64));
BX_NEXT_INSTR(i);
}
#endif // BX_SUPPORT_X86_64
#endif // BX_CPU_LEVEL >= 6
#endif // BX_CPU_LEVEL >= 3
Reference in New Issue View Git Blame Copy Permalink