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x86emitter: implement some BMI instructions 

Only a couple of one to do some memory profiling
This commit is contained in:
Gregory Hainaut 2015-12-09 23:51:51 +01:00
parent 9e13a7bdaa
commit 50c7cb1717
5 changed files with 99 additions and 0 deletions
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61
common/include/x86emitter/implement/bmi.h Normal file
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@ -0,0 +1,61 @@
/* PCSX2 - PS2 Emulator for PCs
* Copyright (C) 2002-2015 PCSX2 Dev Team
*
* PCSX2 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 Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* PCSX2 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with PCSX2.
* If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
// Implement BMI1/BMI2 instruction set
namespace x86Emitter {
struct xImplBMI_RVM
{
u8 Prefix;
u8 MbPrefix;
u8 Opcode;
// RVM
// MULX Unsigned multiply without affecting flags, and arbitrary destination registers
// PDEP Parallel bits deposit
// PEXT Parallel bits extract
// ANDN Logical and not ~x & y
void operator()( const xRegisterInt& to, const xRegisterInt& from1, const xRegisterInt& from2) const;
void operator()( const xRegisterInt& to, const xRegisterInt& from1, const xIndirectVoid& from2) const;
#if 0
// RMV
// BEXTR Bit field extract (with register) (src >> start) & ((1 << len)-1)[9]
// BZHI Zero high bits starting with specified bit position
// SARX Shift arithmetic right without affecting flags
// SHRX Shift logical right without affecting flags
// SHLX Shift logical left without affecting flags
// FIXME: WARNING same as above but V and M are inverted
//void operator()( const xRegisterInt& to, const xRegisterInt& from1, const xRegisterInt& from2) const;
//void operator()( const xRegisterInt& to, const xIndirectVoid& from1, const xRegisterInt& from2) const;
// VM
// BLSI Extract lowest set isolated bit x & -x
// BLSMSK Get mask up to lowest set bit x ^ (x - 1)
// BLSR Reset lowest set bit x & (x - 1)
void operator()( const xRegisterInt& to, const xRegisterInt& from) const;
void operator()( const xRegisterInt& to, const xIndirectVoid& from) const;
// RMI
//RORX Rotate right logical without affecting flags
void operator()( const xRegisterInt& to, const xRegisterInt& from, u8 imm) const;
void operator()( const xRegisterInt& to, const xIndirectVoid& from, u8 imm) const;
#endif
};
}

4
common/include/x86emitter/instructions.h
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@ -124,6 +124,10 @@ namespace x86Emitter
xSETS, xSETNS,
xSETPE, xSETPO;
// ------------------------------------------------------------------------
// BMI extra instruction requires BMI1/BMI2
extern const xImplBMI_RVM xMULX, xPDEP, xPEXT, xANDN_S; // Warning xANDN is already used by SSE
//////////////////////////////////////////////////////////////////////////////////////////
// Miscellaneous Instructions
// These are all defined inline or in ix86.cpp.

1
common/include/x86emitter/x86types.h
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@ -1002,3 +1002,4 @@ template< typename T > void xWrite( T val );
#include "implement/test.h"
#include "implement/jmpcall.h"
#include "implement/bmi.h"

1
common/src/x86emitter/CMakeLists.txt
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@ -42,6 +42,7 @@ endif(CMAKE_BUILD_TYPE STREQUAL Release)
# variable with all sources of this library
set(x86emitterSources
bmi.cpp
cpudetect.cpp
fpu.cpp
groups.cpp

32
common/src/x86emitter/bmi.cpp Normal file
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@ -0,0 +1,32 @@
/* PCSX2 - PS2 Emulator for PCs
* Copyright (C) 2002-2015 PCSX2 Dev Team
*
* PCSX2 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 Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* PCSX2 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with PCSX2.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include "PrecompiledHeader.h"
#include "internal.h"
#include "tools.h"
namespace x86Emitter {
const xImplBMI_RVM xMULX = { 0xF2, 0x38, 0xF6 };
const xImplBMI_RVM xPDEP = { 0xF2, 0x38, 0xF5 };
const xImplBMI_RVM xPEXT = { 0xF3, 0x38, 0xF5 };
const xImplBMI_RVM xANDN_S = { 0x00, 0x38, 0xF2 };
void xImplBMI_RVM::operator()( const xRegisterInt& to, const xRegisterInt& from1, const xRegisterInt& from2) const
{ xOpWriteC4(Prefix, MbPrefix, Opcode, to, from1, from2); }
void xImplBMI_RVM::operator()( const xRegisterInt& to, const xRegisterInt& from1, const xIndirectVoid& from2) const
{ xOpWriteC4(Prefix, MbPrefix, Opcode, to, from1, from2); }
}