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

95 lines
4.2 KiB
C++

/* PCSX2 - PS2 Emulator for PCs
* Copyright (C) 2002-2009 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
//////////////////////////////////////////////////////////////////////////////////////////
// MMX / SSE Helper Functions!
// ------------------------------------------------------------------------
// For implementing SSE-only logic operations that have xmmreg,xmmreg/rm forms only,
// like ANDPS/ANDPD
//
template< u8 Prefix, u16 Opcode >
class SimdImpl_DestRegSSE
{
public:
__forceinline void operator()( const xRegisterSSE& to, const xRegisterSSE& from ) const { xOpWrite0F( Prefix, Opcode, to, from ); }
__forceinline void operator()( const xRegisterSSE& to, const ModSibBase& from ) const { xOpWrite0F( Prefix, Opcode, to, from ); }
SimdImpl_DestRegSSE() {} //GCWho?
};
// ------------------------------------------------------------------------
// For implementing SSE-only logic operations that have xmmreg,reg/rm,imm forms only
// (PSHUFD / PSHUFHW / etc).
//
template< u8 Prefix, u16 Opcode >
class SimdImpl_DestRegImmSSE
{
public:
__forceinline void operator()( const xRegisterSSE& to, const xRegisterSSE& from, u8 imm ) const { xOpWrite0F( Prefix, Opcode, to, from, imm ); }
__forceinline void operator()( const xRegisterSSE& to, const ModSibBase& from, u8 imm ) const { xOpWrite0F( Prefix, Opcode, to, from, imm ); }
SimdImpl_DestRegImmSSE() {} //GCWho?
};
template< u8 Prefix, u16 Opcode >
class SimdImpl_DestRegImmMMX
{
public:
__forceinline void operator()( const xRegisterMMX& to, const xRegisterMMX& from, u8 imm ) const { xOpWrite0F( Opcode, to, from, imm ); }
__forceinline void operator()( const xRegisterMMX& to, const ModSibBase& from, u8 imm ) const { xOpWrite0F( Opcode, to, from, imm ); }
SimdImpl_DestRegImmMMX() {} //GCWho?
};
// ------------------------------------------------------------------------
// For implementing MMX/SSE operations that have reg,reg/rm forms only,
// but accept either MM or XMM destinations (most PADD/PSUB and other P srithmetic ops).
//
template< u8 Prefix, u16 Opcode >
class SimdImpl_DestRegEither
{
public:
__forceinline void operator()( const xRegisterSSE& to, const xRegisterSSE& from ) const { xOpWrite0F( Prefix, Opcode, to, from ); }
__forceinline void operator()( const xRegisterSSE& to, const ModSibBase& from ) const { xOpWrite0F( Prefix, Opcode, to, from ); }
__forceinline void operator()( const xRegisterMMX& to, const xRegisterMMX& from ) const { xOpWrite0F( Opcode, to, from ); }
__forceinline void operator()( const xRegisterMMX& to, const ModSibBase& from ) const { xOpWrite0F( Opcode, to, from ); }
SimdImpl_DestRegEither() {} //GCWho?
};
// ------------------------------------------------------------------------
// For implementing MMX/SSE operations where the destination *must* be a register, but the
// source can be Direct or Indirect (ModRM/SibSB). The SrcOperandType template parameter
// is used to enforce type strictness of the (void*) parameter and ModSib<> parameter, so
// that the programmer must be explicit in specifying desired operand size.
//
// IMPORTANT: This helper assumes the prefix opcode is written *always* -- regardless of
// MMX or XMM register status.
//
template< u8 Prefix, u16 Opcode, typename DestRegType, typename SrcRegType, typename SrcOperandType >
class SimdImpl_DestRegStrict
{
public:
__forceinline void operator()( const DestRegType& to, const SrcRegType& from ) const { xOpWrite0F( Prefix, Opcode, to, from ); }
__forceinline void operator()( const DestRegType& to, const ModSibStrict<SrcOperandType>& from ) const { xOpWrite0F( Prefix, Opcode, to, from ); }
SimdImpl_DestRegStrict() {} //GCWho?
};