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

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/* 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
// Header: ix86_impl_movs.h -- covers mov, cmov, movsx/movzx, and SETcc (which shares
// with cmov many similarities).
namespace x86Emitter {
// --------------------------------------------------------------------------------------
// MovImplAll
// --------------------------------------------------------------------------------------
// MOV instruction Implementation, plus many SIMD sub-mov variants.
//
struct xImpl_Mov
{
xImpl_Mov() {} // Satisfy GCC's whims.
void operator()( const xRegister8& to, const xRegister8& from ) const;
void operator()( const xRegister16& to, const xRegister16& from ) const;
void operator()( const xRegister32& to, const xRegister32& from ) const;
void operator()( const ModSibBase& dest, const xRegisterInt& from ) const;
void operator()( const xRegisterInt& to, const ModSibBase& src ) const;
void operator()( const ModSib32orLess& dest, int imm ) const;
void operator()( const xRegisterInt& to, int imm, bool preserve_flags=false ) const;
#if 0
template< typename T > __noinline void operator()( const ModSibBase& to, const xImmReg<T>& immOrReg ) const
{
_DoI_helpermess( *this, to, immOrReg );
}
template< typename T > __noinline void operator()( const xDirectOrIndirect<T>& to, const xImmReg<T>& immOrReg ) const
{
_DoI_helpermess( *this, to, immOrReg );
}
template< typename T > __noinline void operator()( const xDirectOrIndirect<T>& to, int imm ) const
{
_DoI_helpermess( *this, to, imm );
}
template< typename T > __noinline void operator()( const xDirectOrIndirect<T>& to, const xDirectOrIndirect<T>& from ) const
{
if( to == from ) return;
_DoI_helpermess( *this, to, from );
}
/*template< typename T > __noinline void operator()( const xRegister<T>& to, const xDirectOrIndirect<T>& from ) const
{
_DoI_helpermess( *this, xDirectOrIndirect<T>( to ), from );
}
template< typename T > __noinline void operator()( const xDirectOrIndirect<T>& to, const xRegister<T>& from ) const
{
_DoI_helpermess( *this, to, xDirectOrIndirect<T>( from ) );
}*/
#endif
};
// --------------------------------------------------------------------------------------
// xImpl_CMov
// --------------------------------------------------------------------------------------
// CMOVcc !! [in all of it's disappointing lack-of glory] .. and ..
// SETcc !! [more glory, less lack!]
//
// CMOV Disclaimer: Caution! This instruction can look exciting and cool, until you
// realize that it cannot load immediate values into registers. -_-
//
// I use explicit method declarations here instead of templates, in order to provide
// *only* 32 and 16 bit register operand forms (8 bit registers are not valid in CMOV).
//
struct xImpl_CMov
{
JccComparisonType ccType;
void operator()( const xRegister32& to, const xRegister32& from ) const;
void operator()( const xRegister32& to, const ModSibBase& sibsrc ) const;
void operator()( const xRegister16& to, const xRegister16& from ) const;
void operator()( const xRegister16& to, const ModSibBase& sibsrc ) const;
//void operator()( const xDirectOrIndirect32& to, const xDirectOrIndirect32& from );
//void operator()( const xDirectOrIndirect16& to, const xDirectOrIndirect16& from ) const;
};
struct xImpl_Set
{
JccComparisonType ccType;
void operator()( const xRegister8& to ) const;
void operator()( const ModSib8& dest ) const;
//void operator()( const xDirectOrIndirect8& dest ) const;
};
// --------------------------------------------------------------------------------------
// xImpl_MovExtend
// --------------------------------------------------------------------------------------
// Mov with sign/zero extension implementations (movsx / movzx)
//
struct xImpl_MovExtend
{
bool SignExtend;
void operator()( const xRegister16or32& to, const xRegister8& from ) const;
void operator()( const xRegister16or32& to, const ModSib8& sibsrc ) const;
void operator()( const xRegister32& to, const xRegister16& from ) const;
void operator()( const xRegister32& to, const ModSib16& sibsrc ) const;
//void operator()( const xRegister32& to, const xDirectOrIndirect16& src ) const;
//void operator()( const xRegister16or32& to, const xDirectOrIndirect8& src ) const;
//void operator()( const xRegister16& to, const xDirectOrIndirect8& src ) const;
};
} // End namespace x86Emitter