pcsx2/common/include/x86emitter/implement/bmi.h

62 lines
2.4 KiB
C++

/* 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
};
}