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13dfceff48
* common: format AlignedMalloc.cpp * common: format AppTrait.h * common: format Assertions.h * common: format CheckedStaticBox * common: format Console * common: format Dependencies.h * common: format EmbeddedImage * common: format EventSource * common: format Exceptions * common: format FastFormatString.cpp * common: format General.h * common: format InitInterface * common: format MathUtils.h * common: format MemsetFast/MemcpyFast * common: format Mutex.cpp * common: format PageFaultSource.h * common: format Path.h * common: format PathUtils.cpp * common: format Pcsx2Types.h * common: format Perf * common: format PersistentThread.h * common: format RwMutex * common: format SafeArray * common: format ScopedAlloc.h * common: format ScopedPtrMT.h * common: format Semaphore.cpp * common: format StringHelpers * common: format ThreadTools.cpp * common: format Threading.h * common: format ThreadingDialogs * common: format ThreadingInternal.h * common: format TraceLog.h * common: format VirtualMemory.cpp * common: format pxCheckBox * common: format pxEvents.h * common: format pxForwardDefs.h * common: format pxRadioPanel * common: format pxStaticText * common: format pxStreams * common: format pxTranslate.cpp * common: format pxWindowTextWriter.cpp * common: format wxAppWithHelpers * common: format wxBaseTools.h * common: format wxGuiTools * common: format wxHelpers.cpp * common: format Darwin directory * common: format Linux directory * common: format Windows directory * common: format LnxCpuDetect.cpp * common: format WinCpuDetect.cpp * common: format bmi.cpp * common: format cpudetect.cpp * common: format cpu_detect_internal.h * common: format fpu.cpp * common: format groups.cpp * common: format instructions.h * common: format internal.h * common: format jmp.cpp * common: format legacy.cpp * common: format legacy_instructions.h * common: format legacy_internal.h * common: format movs.cpp * common: format simd.cpp * common: format tools.h * common: format x86emitter.cpp * common: format x86types.h * common: format bmi.h * common: format dwshift.h * common: format group1.h group2.h group3.h * common: format incdec.h * common: format jmpcall.h * common: format movs.h * common: format simd_arithmetic.h * common: format simd_comparisons.h * common: format simd_helpers.h * common: format simd_moremovs.h * common: format simd_shufflepack.h * common: format simd_templated_helpers.h * common: format test.h
44 lines
1.8 KiB
C++
44 lines
1.8 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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namespace x86Emitter
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{
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// Implementations here cover SHLD and SHRD.
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// --------------------------------------------------------------------------------------
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// xImpl_DowrdShift
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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 SHLD/SHRD).
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//
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// Optimization Note: Imm shifts by 0 are ignore (no code generated). This is a safe optimization
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// because shifts by 0 do *not* affect flags status (intel docs cited).
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//
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struct xImpl_DwordShift
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{
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u16 OpcodeBase;
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void operator()(const xRegister16or32or64& to, const xRegister16or32or64& from, const xRegisterCL& clreg) const;
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void operator()(const xRegister16or32or64& to, const xRegister16or32or64& from, u8 shiftcnt) const;
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void operator()(const xIndirectVoid& dest, const xRegister16or32or64& from, const xRegisterCL& clreg) const;
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void operator()(const xIndirectVoid& dest, const xRegister16or32or64& from, u8 shiftcnt) const;
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};
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} // End namespace x86Emitter
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