mirror of https://github.com/PCSX2/pcsx2.git
52 lines
1.4 KiB
C++
52 lines
1.4 KiB
C++
// SPDX-FileCopyrightText: 2002-2023 PCSX2 Dev Team
|
|
// SPDX-License-Identifier: LGPL-3.0+
|
|
|
|
#pragma once
|
|
|
|
namespace x86Emitter
|
|
{
|
|
|
|
enum G2Type
|
|
{
|
|
G2Type_ROL = 0,
|
|
G2Type_ROR,
|
|
G2Type_RCL,
|
|
G2Type_RCR,
|
|
G2Type_SHL,
|
|
G2Type_SHR,
|
|
G2Type_Unused,
|
|
G2Type_SAR
|
|
};
|
|
|
|
// --------------------------------------------------------------------------------------
|
|
// xImpl_Group2
|
|
// --------------------------------------------------------------------------------------
|
|
// Group 2 (shift) instructions have no Sib/ModRM forms.
|
|
// Optimization Note: For Imm forms, we ignore the instruction if the shift count is zero.
|
|
// This is a safe optimization since any zero-value shift does not affect any flags.
|
|
//
|
|
struct xImpl_Group2
|
|
{
|
|
G2Type InstType;
|
|
|
|
void operator()(const xRegisterInt& to, const xRegisterCL& from) const;
|
|
void operator()(const xIndirect64orLess& to, const xRegisterCL& from) const;
|
|
void operator()(const xRegisterInt& to, u8 imm) const;
|
|
void operator()(const xIndirect64orLess& to, u8 imm) const;
|
|
|
|
#if 0
|
|
// ------------------------------------------------------------------------
|
|
template< typename T > __noinline void operator()( const xDirectOrIndirect<T>& to, u8 imm ) const
|
|
{
|
|
_DoI_helpermess( *this, to, imm );
|
|
}
|
|
|
|
template< typename T > __noinline void operator()( const xDirectOrIndirect<T>& to, const xRegisterCL& from ) const
|
|
{
|
|
_DoI_helpermess( *this, to, from );
|
|
}
|
|
#endif
|
|
};
|
|
|
|
} // End namespace x86Emitter
|