mirror of https://github.com/PCSX2/pcsx2.git
50 lines
1.8 KiB
C++
50 lines
1.8 KiB
C++
// SPDX-FileCopyrightText: 2002-2024 PCSX2 Dev Team
|
|
// SPDX-License-Identifier: GPL-3.0+
|
|
|
|
#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
|
|
};
|
|
} // namespace x86Emitter
|