mirror of https://github.com/PCSX2/pcsx2.git
129 lines
4.7 KiB
C++
129 lines
4.7 KiB
C++
// SPDX-FileCopyrightText: 2002-2024 PCSX2 Dev Team
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// SPDX-License-Identifier: GPL-3.0+
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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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// --------------------------------------------------------------------------------------
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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 xRegisterInt& to, const xRegisterInt& from) const;
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void operator()(const xIndirectVoid& dest, const xRegisterInt& from) const;
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void operator()(const xRegisterInt& to, const xIndirectVoid& src) const;
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void operator()(const xIndirect64orLess& dest, sptr imm) const;
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void operator()(const xRegisterInt& to, sptr 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_MovImm64
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// --------------------------------------------------------------------------------------
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// Mov with 64-bit immediates (only available on 64-bit platforms)
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//
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struct xImpl_MovImm64
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{
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xImpl_MovImm64() {} // Satisfy GCC's whims.
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void operator()(const xRegister64& to, s64 imm, bool preserve_flags = false) const;
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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 xRegister16or32or64& to, const xRegister16or32or64& from) const;
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void operator()(const xRegister16or32or64& to, const xIndirectVoid& 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 xIndirect8& 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 xRegister16or32or64& to, const xRegister8& from) const;
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void operator()(const xRegister16or32or64& to, const xIndirect8& sibsrc) const;
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void operator()(const xRegister32or64& to, const xRegister16& from) const;
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void operator()(const xRegister32or64& to, const xIndirect16& sibsrc) const;
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void operator()(const xRegister64& to, const xRegister32& from) const;
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void operator()(const xRegister64& to, const xIndirect32& 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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