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/*
* Copyright (c) 2009 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Gabe Black
*/
#ifndef __ARCH_X86_INSTS_MICROMEDIAOP_HH__
#define __ARCH_X86_INSTS_MICROMEDIAOP_HH__
#include "arch/x86/insts/microop.hh"
namespace X86ISA
{
enum MediaFlag {
MediaMultHiOp = 1,
MediaSignedOp = 64,
MediaScalarOp = 128
};
class MediaOpBase : public X86MicroopBase
{
protected:
const RegIndex src1;
const RegIndex dest;
const uint8_t srcSize;
const uint8_t destSize;
const uint8_t ext;
static const RegIndex foldOBit = 0;
// Constructor
MediaOpBase(ExtMachInst _machInst,
const char *mnem, const char *_instMnem, uint64_t setFlags,
InstRegIndex _src1, InstRegIndex _dest,
uint8_t _srcSize, uint8_t _destSize, uint8_t _ext,
OpClass __opClass) :
X86MicroopBase(_machInst, mnem, _instMnem, setFlags,
__opClass),
src1(_src1.index()), dest(_dest.index()),
srcSize(_srcSize), destSize(_destSize), ext(_ext)
{}
bool
scalarOp() const
{
return ext & MediaScalarOp;
}
int
numItems(int size) const
{
return scalarOp() ? 1 : (sizeof(FloatRegBits) / size);
}
bool
multHi() const
{
return ext & MediaMultHiOp;
}
bool
signedOp() const
{
return ext & MediaSignedOp;
}
};
class MediaOpReg : public MediaOpBase
{
protected:
const RegIndex src2;
// Constructor
MediaOpReg(ExtMachInst _machInst,
const char *mnem, const char *_instMnem, uint64_t setFlags,
InstRegIndex _src1, InstRegIndex _src2, InstRegIndex _dest,
uint8_t _srcSize, uint8_t _destSize, uint8_t _ext,
OpClass __opClass) :
MediaOpBase(_machInst, mnem, _instMnem, setFlags,
_src1, _dest, _srcSize, _destSize, _ext,
__opClass),
src2(_src2.index())
{}
std::string generateDisassembly(Addr pc,
const SymbolTable *symtab) const;
};
class MediaOpImm : public MediaOpBase
{
protected:
uint8_t imm8;
// Constructor
MediaOpImm(ExtMachInst _machInst,
const char *mnem, const char *_instMnem, uint64_t setFlags,
InstRegIndex _src1, uint8_t _imm8, InstRegIndex _dest,
uint8_t _srcSize, uint8_t _destSize, uint8_t _ext,
OpClass __opClass) :
MediaOpBase(_machInst, mnem, _instMnem, setFlags,
_src1, _dest, _srcSize, _destSize, _ext,
__opClass),
imm8(_imm8)
{}
std::string generateDisassembly(Addr pc,
const SymbolTable *symtab) const;
};
}
#endif //__ARCH_X86_INSTS_MICROMEDIAOP_HH__
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