mirror of https://github.com/PCSX2/pcsx2.git
630 lines
20 KiB
C++
630 lines
20 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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/*
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* ix86 definitions v0.9.1
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*
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* Original Authors (v0.6.2 and prior):
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* linuzappz <linuzappz@pcsx.net>
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* alexey silinov
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* goldfinger
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* zerofrog(@gmail.com)
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*
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* Authors of v0.9.1:
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* Jake.Stine(@gmail.com)
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* cottonvibes(@gmail.com)
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* sudonim(1@gmail.com)
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*/
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#pragma once
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namespace x86Emitter
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{
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extern void xStoreReg(const xRegisterSSE& src);
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extern void xRestoreReg(const xRegisterSSE& dest);
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// ------------------------------------------------------------------------
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// Group 1 Instruction Class
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extern const xImpl_Group1 xADC;
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extern const xImpl_Group1 xSBB;
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extern const xImpl_G1Logic xAND;
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extern const xImpl_G1Logic xOR;
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extern const xImpl_G1Logic xXOR;
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extern const xImpl_G1Arith xADD;
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extern const xImpl_G1Arith xSUB;
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extern const xImpl_G1Compare xCMP;
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// ------------------------------------------------------------------------
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// Group 2 Instruction Class
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//
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// Optimization Note: For Imm forms, we ignore the instruction if the shift count is
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// zero. This is a safe optimization since any zero-value shift does not affect any
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// flags.
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extern const xImpl_Mov xMOV;
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#ifdef __M_X86_64
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extern const xImpl_MovImm64 xMOV64;
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#endif
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extern const xImpl_Test xTEST;
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extern const xImpl_Group2 xROL, xROR,
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xRCL, xRCR,
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xSHL, xSHR,
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xSAR;
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// ------------------------------------------------------------------------
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// Group 3 Instruction Class
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extern const xImpl_Group3 xNOT, xNEG;
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extern const xImpl_Group3 xUMUL, xUDIV;
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extern const xImpl_iDiv xDIV;
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extern const xImpl_iMul xMUL;
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extern const xImpl_IncDec xINC, xDEC;
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extern const xImpl_MovExtend xMOVZX, xMOVSX;
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extern const xImpl_DwordShift xSHLD, xSHRD;
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extern const xImpl_Group8 xBT;
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extern const xImpl_Group8 xBTR;
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extern const xImpl_Group8 xBTS;
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extern const xImpl_Group8 xBTC;
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extern const xImpl_BitScan xBSF, xBSR;
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extern const xImpl_JmpCall xJMP;
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extern const xImpl_JmpCall xCALL;
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extern const xImpl_FastCall xFastCall;
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// ------------------------------------------------------------------------
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extern const xImpl_CMov xCMOVA, xCMOVAE,
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xCMOVB, xCMOVBE,
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xCMOVG, xCMOVGE,
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xCMOVL, xCMOVLE,
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xCMOVZ, xCMOVE,
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xCMOVNZ, xCMOVNE,
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xCMOVO, xCMOVNO,
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xCMOVC, xCMOVNC,
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xCMOVS, xCMOVNS,
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xCMOVPE, xCMOVPO;
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// ------------------------------------------------------------------------
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extern const xImpl_Set xSETA, xSETAE,
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xSETB, xSETBE,
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xSETG, xSETGE,
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xSETL, xSETLE,
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xSETZ, xSETE,
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xSETNZ, xSETNE,
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xSETO, xSETNO,
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xSETC, xSETNC,
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xSETS, xSETNS,
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xSETPE, xSETPO;
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// ------------------------------------------------------------------------
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// BMI extra instruction requires BMI1/BMI2
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extern const xImplBMI_RVM xMULX, xPDEP, xPEXT, xANDN_S; // Warning xANDN is already used by SSE
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//////////////////////////////////////////////////////////////////////////////////////////
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// Miscellaneous Instructions
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// These are all defined inline or in ix86.cpp.
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//
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extern void xBSWAP(const xRegister32or64& to);
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// ----- Lea Instructions (Load Effective Address) -----
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// Note: alternate (void*) forms of these instructions are not provided since those
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// forms are functionally equivalent to Mov reg,imm, and thus better written as MOVs
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// instead.
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extern void xLEA(xRegister64 to, const xIndirectVoid& src, bool preserve_flags = false);
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extern void xLEA(xRegister32 to, const xIndirectVoid& src, bool preserve_flags = false);
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extern void xLEA(xRegister16 to, const xIndirectVoid& src, bool preserve_flags = false);
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/// LEA with a target that will be decided later, guarantees that no optimizations are performed that could change what needs to be written in
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extern u32* xLEA_Writeback(xAddressReg to);
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// ----- Push / Pop Instructions -----
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// Note: pushad/popad implementations are intentionally left out. The instructions are
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// invalid in x64, and are super slow on x32. Use multiple Push/Pop instructions instead.
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extern void xPOP(const xIndirectVoid& from);
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extern void xPUSH(const xIndirectVoid& from);
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extern void xPOP(xRegister32or64 from);
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extern void xPUSH(u32 imm);
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extern void xPUSH(xRegister32or64 from);
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// pushes the EFLAGS register onto the stack
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extern void xPUSHFD();
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// pops the EFLAGS register from the stack
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extern void xPOPFD();
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// ----- Miscellaneous Instructions -----
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// Various Instructions with no parameter and no special encoding logic.
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extern void xLEAVE();
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extern void xRET();
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extern void xCBW();
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extern void xCWD();
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extern void xCDQ();
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extern void xCWDE();
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extern void xCDQE();
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extern void xLAHF();
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extern void xSAHF();
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extern void xSTC();
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extern void xCLC();
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// NOP 1-byte
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extern void xNOP();
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extern void xINT(u8 imm);
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extern void xINTO();
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//////////////////////////////////////////////////////////////////////////////////////////
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// Helper object to handle the various functions ABI
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class xScopedStackFrame
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{
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bool m_base_frame;
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bool m_save_base_pointer;
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int m_offset;
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public:
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xScopedStackFrame(bool base_frame, bool save_base_pointer = false, int offset = 0);
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~xScopedStackFrame();
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};
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//////////////////////////////////////////////////////////////////////////////////////////
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/// Helper object to save some temporary registers before the call
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class xScopedSavedRegisters
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{
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std::vector<std::reference_wrapper<const xAddressReg>> regs;
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public:
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xScopedSavedRegisters(std::initializer_list<std::reference_wrapper<const xAddressReg>> regs);
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~xScopedSavedRegisters();
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};
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//////////////////////////////////////////////////////////////////////////////////////////
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/// Helper function to calculate base+offset taking into account the limitations of x86-64's RIP-relative addressing
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/// (Will either return `base+offset` or LEA `base` into `tmpRegister` and return `tmpRegister+offset`)
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xAddressVoid xComplexAddress(const xAddressReg& tmpRegister, void* base, const xAddressVoid& offset);
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//////////////////////////////////////////////////////////////////////////////////////////
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/// Helper function to load addresses that may be far from the current instruction pointer
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/// On i386, resolves to `mov dst, (sptr)addr`
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/// On x86-64, resolves to either `mov dst, (sptr)addr` or `lea dst, [addr]` depending on the distance from RIP
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void xLoadFarAddr(const xAddressReg& dst, void* addr);
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//////////////////////////////////////////////////////////////////////////////////////////
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/// Helper function to write a 64-bit constant to memory
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/// May use `tmp` on x86-64
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void xWriteImm64ToMem(u64* addr, const xAddressReg& tmp, u64 imm);
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#ifdef __M_X86_64
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//////////////////////////////////////////////////////////////////////////////////////////
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/// Helper function to run operations with large immediates
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/// If the immediate fits in 32 bits, runs op(target, imm)
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/// Otherwise, loads imm into tmpRegister and then runs op(dst, tmp)
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template <typename Op, typename Dst>
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void xImm64Op(const Op& op, const Dst& dst, const xRegister64& tmpRegister, s64 imm)
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{
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if (imm == (s32)imm)
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{
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op(dst, imm);
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}
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else
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{
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xMOV64(tmpRegister, imm);
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op(dst, tmpRegister);
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}
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}
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#endif
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//////////////////////////////////////////////////////////////////////////////////////////
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// JMP / Jcc Instructions!
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extern void xJcc(JccComparisonType comparison, const void* target);
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extern s8* xJcc8(JccComparisonType comparison = Jcc_Unconditional, s8 displacement = 0);
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extern s32* xJcc32(JccComparisonType comparison = Jcc_Unconditional, s32 displacement = 0);
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// ------------------------------------------------------------------------
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// Conditional jumps to fixed targets.
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// Jumps accept any pointer as a valid target (function or data), and will generate either
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// 8 or 32 bit displacement versions of the jump, depending on relative displacement of
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// the target (efficient!)
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//
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template <typename T>
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__fi void xJE(T* func)
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{
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xJcc(Jcc_Equal, (void*)(uptr)func);
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}
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template <typename T>
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__fi void xJZ(T* func)
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{
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xJcc(Jcc_Zero, (void*)(uptr)func);
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}
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template <typename T>
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__fi void xJNE(T* func)
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{
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xJcc(Jcc_NotEqual, (void*)(uptr)func);
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}
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template <typename T>
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__fi void xJNZ(T* func)
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{
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xJcc(Jcc_NotZero, (void*)(uptr)func);
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}
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template <typename T>
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__fi void xJO(T* func)
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{
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xJcc(Jcc_Overflow, (void*)(uptr)func);
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}
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template <typename T>
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__fi void xJNO(T* func)
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{
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xJcc(Jcc_NotOverflow, (void*)(uptr)func);
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}
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template <typename T>
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__fi void xJC(T* func)
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{
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xJcc(Jcc_Carry, (void*)(uptr)func);
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}
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template <typename T>
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__fi void xJNC(T* func)
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{
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xJcc(Jcc_NotCarry, (void*)(uptr)func);
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}
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template <typename T>
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__fi void xJS(T* func)
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{
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xJcc(Jcc_Signed, (void*)(uptr)func);
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}
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template <typename T>
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__fi void xJNS(T* func)
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{
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xJcc(Jcc_Unsigned, (void*)(uptr)func);
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}
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template <typename T>
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__fi void xJPE(T* func)
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{
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xJcc(Jcc_ParityEven, (void*)(uptr)func);
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}
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template <typename T>
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__fi void xJPO(T* func)
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{
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xJcc(Jcc_ParityOdd, (void*)(uptr)func);
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}
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template <typename T>
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__fi void xJL(T* func)
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{
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xJcc(Jcc_Less, (void*)(uptr)func);
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}
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template <typename T>
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__fi void xJLE(T* func)
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{
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xJcc(Jcc_LessOrEqual, (void*)(uptr)func);
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}
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template <typename T>
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__fi void xJG(T* func)
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{
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xJcc(Jcc_Greater, (void*)(uptr)func);
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}
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template <typename T>
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__fi void xJGE(T* func)
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{
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xJcc(Jcc_GreaterOrEqual, (void*)(uptr)func);
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}
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template <typename T>
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__fi void xJB(T* func)
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{
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xJcc(Jcc_Below, (void*)(uptr)func);
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}
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template <typename T>
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__fi void xJBE(T* func)
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{
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xJcc(Jcc_BelowOrEqual, (void*)(uptr)func);
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}
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template <typename T>
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__fi void xJA(T* func)
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{
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xJcc(Jcc_Above, (void*)(uptr)func);
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}
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template <typename T>
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__fi void xJAE(T* func)
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{
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xJcc(Jcc_AboveOrEqual, (void*)(uptr)func);
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}
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// ------------------------------------------------------------------------
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// Forward Jump Helpers (act as labels!)
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#define DEFINE_FORWARD_JUMP(label, cond) \
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template <typename OperandType> \
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class xForward##label : public xForwardJump<OperandType> \
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{ \
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public: \
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xForward##label() \
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: xForwardJump<OperandType>(cond) \
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{ \
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} \
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};
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// ------------------------------------------------------------------------
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// Note: typedefs below are defined individually in order to appease Intellisense
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// resolution. Including them into the class definition macro above breaks it.
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typedef xForwardJump<s8> xForwardJump8;
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typedef xForwardJump<s32> xForwardJump32;
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DEFINE_FORWARD_JUMP(JA, Jcc_Above);
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DEFINE_FORWARD_JUMP(JB, Jcc_Below);
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DEFINE_FORWARD_JUMP(JAE, Jcc_AboveOrEqual);
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DEFINE_FORWARD_JUMP(JBE, Jcc_BelowOrEqual);
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typedef xForwardJA<s8> xForwardJA8;
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typedef xForwardJA<s32> xForwardJA32;
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typedef xForwardJB<s8> xForwardJB8;
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typedef xForwardJB<s32> xForwardJB32;
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typedef xForwardJAE<s8> xForwardJAE8;
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typedef xForwardJAE<s32> xForwardJAE32;
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typedef xForwardJBE<s8> xForwardJBE8;
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typedef xForwardJBE<s32> xForwardJBE32;
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DEFINE_FORWARD_JUMP(JG, Jcc_Greater);
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DEFINE_FORWARD_JUMP(JL, Jcc_Less);
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DEFINE_FORWARD_JUMP(JGE, Jcc_GreaterOrEqual);
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DEFINE_FORWARD_JUMP(JLE, Jcc_LessOrEqual);
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typedef xForwardJG<s8> xForwardJG8;
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typedef xForwardJG<s32> xForwardJG32;
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typedef xForwardJL<s8> xForwardJL8;
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typedef xForwardJL<s32> xForwardJL32;
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typedef xForwardJGE<s8> xForwardJGE8;
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typedef xForwardJGE<s32> xForwardJGE32;
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typedef xForwardJLE<s8> xForwardJLE8;
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typedef xForwardJLE<s32> xForwardJLE32;
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DEFINE_FORWARD_JUMP(JZ, Jcc_Zero);
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DEFINE_FORWARD_JUMP(JE, Jcc_Equal);
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DEFINE_FORWARD_JUMP(JNZ, Jcc_NotZero);
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DEFINE_FORWARD_JUMP(JNE, Jcc_NotEqual);
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typedef xForwardJZ<s8> xForwardJZ8;
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typedef xForwardJZ<s32> xForwardJZ32;
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typedef xForwardJE<s8> xForwardJE8;
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typedef xForwardJE<s32> xForwardJE32;
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typedef xForwardJNZ<s8> xForwardJNZ8;
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typedef xForwardJNZ<s32> xForwardJNZ32;
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typedef xForwardJNE<s8> xForwardJNE8;
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typedef xForwardJNE<s32> xForwardJNE32;
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DEFINE_FORWARD_JUMP(JS, Jcc_Signed);
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DEFINE_FORWARD_JUMP(JNS, Jcc_Unsigned);
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typedef xForwardJS<s8> xForwardJS8;
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typedef xForwardJS<s32> xForwardJS32;
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typedef xForwardJNS<s8> xForwardJNS8;
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typedef xForwardJNS<s32> xForwardJNS32;
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DEFINE_FORWARD_JUMP(JO, Jcc_Overflow);
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DEFINE_FORWARD_JUMP(JNO, Jcc_NotOverflow);
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typedef xForwardJO<s8> xForwardJO8;
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typedef xForwardJO<s32> xForwardJO32;
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typedef xForwardJNO<s8> xForwardJNO8;
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typedef xForwardJNO<s32> xForwardJNO32;
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DEFINE_FORWARD_JUMP(JC, Jcc_Carry);
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DEFINE_FORWARD_JUMP(JNC, Jcc_NotCarry);
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typedef xForwardJC<s8> xForwardJC8;
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typedef xForwardJC<s32> xForwardJC32;
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typedef xForwardJNC<s8> xForwardJNC8;
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typedef xForwardJNC<s32> xForwardJNC32;
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DEFINE_FORWARD_JUMP(JPE, Jcc_ParityEven);
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DEFINE_FORWARD_JUMP(JPO, Jcc_ParityOdd);
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typedef xForwardJPE<s8> xForwardJPE8;
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typedef xForwardJPE<s32> xForwardJPE32;
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typedef xForwardJPO<s8> xForwardJPO8;
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typedef xForwardJPO<s32> xForwardJPO32;
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// ------------------------------------------------------------------------
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extern void xEMMS();
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extern void xSTMXCSR(const xIndirect32& dest);
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extern void xLDMXCSR(const xIndirect32& src);
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extern void xFXSAVE(const xIndirectVoid& dest);
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extern void xFXRSTOR(const xIndirectVoid& src);
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extern void xMOVDZX(const xRegisterSSE& to, const xRegister32or64& from);
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extern void xMOVDZX(const xRegisterSSE& to, const xIndirectVoid& src);
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extern void xMOVD(const xRegister32or64& to, const xRegisterSSE& from);
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extern void xMOVD(const xIndirectVoid& dest, const xRegisterSSE& from);
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extern void xMOVQ(const xIndirectVoid& dest, const xRegisterSSE& from);
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extern void xMOVQZX(const xRegisterSSE& to, const xIndirectVoid& src);
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extern void xMOVQZX(const xRegisterSSE& to, const xRegisterSSE& from);
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extern void xMOVSS(const xRegisterSSE& to, const xRegisterSSE& from);
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extern void xMOVSS(const xIndirectVoid& to, const xRegisterSSE& from);
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extern void xMOVSD(const xRegisterSSE& to, const xRegisterSSE& from);
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extern void xMOVSD(const xIndirectVoid& to, const xRegisterSSE& from);
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extern void xMOVSSZX(const xRegisterSSE& to, const xIndirectVoid& from);
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extern void xMOVSDZX(const xRegisterSSE& to, const xIndirectVoid& from);
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extern void xMOVNTDQA(const xRegisterSSE& to, const xIndirectVoid& from);
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extern void xMOVNTDQA(const xIndirectVoid& to, const xRegisterSSE& from);
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extern void xMOVNTPD(const xIndirectVoid& to, const xRegisterSSE& from);
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extern void xMOVNTPS(const xIndirectVoid& to, const xRegisterSSE& from);
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extern void xMOVMSKPS(const xRegister32& to, const xRegisterSSE& from);
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extern void xMOVMSKPD(const xRegister32& to, const xRegisterSSE& from);
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extern void xMASKMOV(const xRegisterSSE& to, const xRegisterSSE& from);
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extern void xPMOVMSKB(const xRegister32or64& to, const xRegisterSSE& from);
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extern void xPALIGNR(const xRegisterSSE& to, const xRegisterSSE& from, u8 imm8);
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// ------------------------------------------------------------------------
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extern const xImplSimd_MoveSSE xMOVAPS;
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extern const xImplSimd_MoveSSE xMOVUPS;
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extern const xImplSimd_MoveSSE xMOVAPD;
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extern const xImplSimd_MoveSSE xMOVUPD;
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#ifdef ALWAYS_USE_MOVAPS
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extern const xImplSimd_MoveSSE xMOVDQA;
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extern const xImplSimd_MoveSSE xMOVDQU;
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#else
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extern const xImplSimd_MoveDQ xMOVDQA;
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extern const xImplSimd_MoveDQ xMOVDQU;
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#endif
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extern const xImplSimd_MovHL xMOVH;
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extern const xImplSimd_MovHL xMOVL;
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extern const xImplSimd_MovHL_RtoR xMOVLH;
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extern const xImplSimd_MovHL_RtoR xMOVHL;
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extern const xImplSimd_Blend xBLEND;
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extern const xImplSimd_PMove xPMOVSX;
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extern const xImplSimd_PMove xPMOVZX;
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extern const xImplSimd_DestRegSSE xMOVSLDUP;
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extern const xImplSimd_DestRegSSE xMOVSHDUP;
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extern void xINSERTPS(const xRegisterSSE& to, const xRegisterSSE& from, u8 imm8);
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extern void xINSERTPS(const xRegisterSSE& to, const xIndirect32& from, u8 imm8);
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extern void xEXTRACTPS(const xRegister32or64& to, const xRegisterSSE& from, u8 imm8);
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extern void xEXTRACTPS(const xIndirect32& dest, const xRegisterSSE& from, u8 imm8);
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// ------------------------------------------------------------------------
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extern const xImplSimd_DestRegEither xPAND;
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extern const xImplSimd_DestRegEither xPANDN;
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extern const xImplSimd_DestRegEither xPOR;
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extern const xImplSimd_DestRegEither xPXOR;
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extern const xImplSimd_Shuffle xSHUF;
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// ------------------------------------------------------------------------
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extern const xImplSimd_DestRegSSE xPTEST;
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extern const xImplSimd_MinMax xMIN;
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extern const xImplSimd_MinMax xMAX;
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extern const xImplSimd_Compare xCMPEQ, xCMPLT,
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xCMPLE, xCMPUNORD,
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xCMPNE, xCMPNLT,
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xCMPNLE, xCMPORD;
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extern const xImplSimd_COMI xCOMI;
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extern const xImplSimd_COMI xUCOMI;
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extern const xImplSimd_PCompare xPCMP;
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extern const xImplSimd_PMinMax xPMIN;
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extern const xImplSimd_PMinMax xPMAX;
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// ------------------------------------------------------------------------
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//
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//
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extern void xCVTDQ2PD(const xRegisterSSE& to, const xRegisterSSE& from);
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extern void xCVTDQ2PD(const xRegisterSSE& to, const xIndirect64& from);
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extern void xCVTDQ2PS(const xRegisterSSE& to, const xRegisterSSE& from);
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extern void xCVTDQ2PS(const xRegisterSSE& to, const xIndirect128& from);
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extern void xCVTPD2DQ(const xRegisterSSE& to, const xRegisterSSE& from);
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extern void xCVTPD2DQ(const xRegisterSSE& to, const xIndirect128& from);
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extern void xCVTPD2PS(const xRegisterSSE& to, const xRegisterSSE& from);
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extern void xCVTPD2PS(const xRegisterSSE& to, const xIndirect128& from);
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extern void xCVTPI2PD(const xRegisterSSE& to, const xIndirect64& from);
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extern void xCVTPI2PS(const xRegisterSSE& to, const xIndirect64& from);
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extern void xCVTPS2DQ(const xRegisterSSE& to, const xRegisterSSE& from);
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extern void xCVTPS2DQ(const xRegisterSSE& to, const xIndirect128& from);
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extern void xCVTPS2PD(const xRegisterSSE& to, const xRegisterSSE& from);
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extern void xCVTPS2PD(const xRegisterSSE& to, const xIndirect64& from);
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extern void xCVTSD2SI(const xRegister32or64& to, const xRegisterSSE& from);
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extern void xCVTSD2SI(const xRegister32or64& to, const xIndirect64& from);
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extern void xCVTSD2SS(const xRegisterSSE& to, const xRegisterSSE& from);
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extern void xCVTSD2SS(const xRegisterSSE& to, const xIndirect64& from);
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extern void xCVTSI2SS(const xRegisterSSE& to, const xRegister32or64& from);
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extern void xCVTSI2SS(const xRegisterSSE& to, const xIndirect32& from);
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extern void xCVTSS2SD(const xRegisterSSE& to, const xRegisterSSE& from);
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extern void xCVTSS2SD(const xRegisterSSE& to, const xIndirect32& from);
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extern void xCVTSS2SI(const xRegister32or64& to, const xRegisterSSE& from);
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extern void xCVTSS2SI(const xRegister32or64& to, const xIndirect32& from);
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extern void xCVTTPD2DQ(const xRegisterSSE& to, const xRegisterSSE& from);
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extern void xCVTTPD2DQ(const xRegisterSSE& to, const xIndirect128& from);
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extern void xCVTTPS2DQ(const xRegisterSSE& to, const xRegisterSSE& from);
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extern void xCVTTPS2DQ(const xRegisterSSE& to, const xIndirect128& from);
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extern void xCVTTSD2SI(const xRegister32or64& to, const xRegisterSSE& from);
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extern void xCVTTSD2SI(const xRegister32or64& to, const xIndirect64& from);
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extern void xCVTTSS2SI(const xRegister32or64& to, const xRegisterSSE& from);
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extern void xCVTTSS2SI(const xRegister32or64& to, const xIndirect32& from);
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// ------------------------------------------------------------------------
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extern const xImplSimd_AndNot xANDN;
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extern const xImplSimd_rSqrt xRCP;
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extern const xImplSimd_rSqrt xRSQRT;
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extern const xImplSimd_Sqrt xSQRT;
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extern const xImplSimd_Shift xPSLL;
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extern const xImplSimd_Shift xPSRL;
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extern const xImplSimd_ShiftWithoutQ xPSRA;
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extern const xImplSimd_AddSub xPADD;
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extern const xImplSimd_AddSub xPSUB;
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extern const xImplSimd_PMul xPMUL;
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extern const xImplSimd_PAbsolute xPABS;
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extern const xImplSimd_PSign xPSIGN;
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extern const xImplSimd_PMultAdd xPMADD;
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extern const xImplSimd_HorizAdd xHADD;
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extern const xImplSimd_DotProduct xDP;
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extern const xImplSimd_Round xROUND;
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extern const xImplSimd_PShuffle xPSHUF;
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extern const SimdImpl_PUnpack xPUNPCK;
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extern const xImplSimd_Unpack xUNPCK;
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extern const SimdImpl_Pack xPACK;
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extern const xImplSimd_PInsert xPINSR;
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extern const SimdImpl_PExtract xPEXTR;
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} // namespace x86Emitter
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