mirror of https://github.com/PCSX2/pcsx2.git
133 lines
4.9 KiB
C++
133 lines
4.9 KiB
C++
/* PCSX2 - PS2 Emulator for PCs
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* Copyright (C) 2002-2010 PCSX2 Dev Team
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*
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* PCSX2 is free software: you can redistribute it and/or modify it under the terms
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* of the GNU Lesser General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with PCSX2.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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// Header: ix86_impl_movs.h -- covers mov, cmov, movsx/movzx, and SETcc (which shares
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// with cmov many similarities).
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namespace x86Emitter {
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// --------------------------------------------------------------------------------------
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// MovImplAll
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// --------------------------------------------------------------------------------------
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// MOV instruction Implementation, plus many SIMD sub-mov variants.
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//
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struct xImpl_Mov
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{
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xImpl_Mov() {} // Satisfy GCC's whims.
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void operator()( const xRegister8& to, const xRegister8& from ) const;
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void operator()( const xRegister16& to, const xRegister16& from ) const;
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void operator()( const xRegister32& to, const xRegister32& from ) const;
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void operator()( const ModSibBase& dest, const xRegisterInt& from ) const;
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void operator()( const xRegisterInt& to, const ModSibBase& src ) const;
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void operator()( const ModSib32orLess& dest, int imm ) const;
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void operator()( const xRegisterInt& to, int imm, bool preserve_flags=false ) const;
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#if 0
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template< typename T > __noinline void operator()( const ModSibBase& to, const xImmReg<T>& immOrReg ) const
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{
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_DoI_helpermess( *this, to, immOrReg );
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}
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template< typename T > __noinline void operator()( const xDirectOrIndirect<T>& to, const xImmReg<T>& immOrReg ) const
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{
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_DoI_helpermess( *this, to, immOrReg );
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}
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template< typename T > __noinline void operator()( const xDirectOrIndirect<T>& to, int imm ) const
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{
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_DoI_helpermess( *this, to, imm );
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}
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template< typename T > __noinline void operator()( const xDirectOrIndirect<T>& to, const xDirectOrIndirect<T>& from ) const
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{
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if( to == from ) return;
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_DoI_helpermess( *this, to, from );
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}
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/*template< typename T > __noinline void operator()( const xRegister<T>& to, const xDirectOrIndirect<T>& from ) const
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{
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_DoI_helpermess( *this, xDirectOrIndirect<T>( to ), from );
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}
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template< typename T > __noinline void operator()( const xDirectOrIndirect<T>& to, const xRegister<T>& from ) const
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{
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_DoI_helpermess( *this, to, xDirectOrIndirect<T>( from ) );
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}*/
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#endif
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};
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// --------------------------------------------------------------------------------------
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// xImpl_CMov
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// --------------------------------------------------------------------------------------
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// CMOVcc !! [in all of it's disappointing lack-of glory] .. and ..
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// SETcc !! [more glory, less lack!]
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//
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// CMOV Disclaimer: Caution! This instruction can look exciting and cool, until you
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// realize that it cannot load immediate values into registers. -_-
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//
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// I use explicit method declarations here instead of templates, in order to provide
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// *only* 32 and 16 bit register operand forms (8 bit registers are not valid in CMOV).
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//
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struct xImpl_CMov
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{
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JccComparisonType ccType;
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void operator()( const xRegister32& to, const xRegister32& from ) const;
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void operator()( const xRegister32& to, const ModSibBase& sibsrc ) const;
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void operator()( const xRegister16& to, const xRegister16& from ) const;
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void operator()( const xRegister16& to, const ModSibBase& sibsrc ) const;
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//void operator()( const xDirectOrIndirect32& to, const xDirectOrIndirect32& from );
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//void operator()( const xDirectOrIndirect16& to, const xDirectOrIndirect16& from ) const;
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};
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struct xImpl_Set
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{
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JccComparisonType ccType;
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void operator()( const xRegister8& to ) const;
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void operator()( const ModSib8& dest ) const;
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//void operator()( const xDirectOrIndirect8& dest ) const;
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};
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// --------------------------------------------------------------------------------------
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// xImpl_MovExtend
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// --------------------------------------------------------------------------------------
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// Mov with sign/zero extension implementations (movsx / movzx)
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//
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struct xImpl_MovExtend
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{
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bool SignExtend;
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void operator()( const xRegister16or32& to, const xRegister8& from ) const;
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void operator()( const xRegister16or32& to, const ModSib8& sibsrc ) const;
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void operator()( const xRegister32& to, const xRegister16& from ) const;
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void operator()( const xRegister32& to, const ModSib16& sibsrc ) const;
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//void operator()( const xRegister32& to, const xDirectOrIndirect16& src ) const;
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//void operator()( const xRegister16or32& to, const xDirectOrIndirect8& src ) const;
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//void operator()( const xRegister16& to, const xDirectOrIndirect8& src ) const;
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};
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} // End namespace x86Emitter
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