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ppsspp/Core/MIPS/MIPSTables.cpp

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2012-11-01 15:19:01 +00:00
// Copyright (c) 2012- PPSSPP Project.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official git repository and contact information can be found at
// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
#include "MIPSTables.h"
#include "MIPS.h"
#include "MIPSDis.h"
#include "MIPSDisVFPU.h"
#include "MIPSInt.h"
#include "MIPSIntVFPU.h"
#include "MIPSCodeUtils.h"
#ifdef ANDROID
#include "ARM/Jit.h"
#else
#include "x86/Jit.h"
#endif
#include "JitCommon/JitCommon.h"
enum MipsEncoding
{
Imme,
Spec,
Spe2,
Spe3,
RegI,
Cop0,
Cop0CO,
Cop1,
Cop1BC,
Cop2,
Cop2BC2,
Cop2Rese,
VFPU0,
VFPU1,
VFPU3,
VFPU4Jump,
VFPU7,
VFPU4,
VFPU5,
VFPU6,
VFPUMatrix1,
VFPU9,
ALLEGREX0,
Emu,
Rese,
NumEncodings
};
struct MIPSInstruction
{
int altEncoding;
const char *name;
MIPSComp::MIPSCompileFunc compile;
#ifndef FINAL
MIPSDisFunc disasm;
#endif
MIPSInterpretFunc interpret;
//MIPSInstructionInfo information;
u32 flags;
};
#define INVALID {-2}
#define N(a) a
#ifndef FINAL
#define ENCODING(a) {a}
#define INSTR(name, comp, dis, inter, flags) {-1, N(name), comp, dis, inter, flags}
#else
#define ENCODING(a) {a}
#define INSTR(name, comp, dis, inter, flags) {-1, comp, inter, flags}
#endif
using namespace MIPSDis;
using namespace MIPSInt;
using namespace MIPSComp;
//regregreg instructions
const MIPSInstruction tableImmediate[64] = //xxxxxx .....
{
//0
ENCODING(Spec),
ENCODING(RegI),
INSTR("j", &Jit::Comp_Jump, Dis_JumpType, Int_JumpType, IS_JUMP|IN_IMM26|DELAYSLOT),
INSTR("jal", &Jit::Comp_Jump, Dis_JumpType, Int_JumpType, IS_JUMP|IN_IMM26|OUT_RA|DELAYSLOT),
INSTR("beq", &Jit::Comp_RelBranch, Dis_RelBranch2, Int_RelBranch, IS_CONDBRANCH|IN_RS|IN_RT|DELAYSLOT),
INSTR("bne", &Jit::Comp_RelBranch, Dis_RelBranch2, Int_RelBranch, IS_CONDBRANCH|IN_RS|IN_RT|DELAYSLOT),
INSTR("blez", &Jit::Comp_RelBranch, Dis_RelBranch, Int_RelBranch, IS_CONDBRANCH|IN_RS|DELAYSLOT),
INSTR("bgtz", &Jit::Comp_RelBranch, Dis_RelBranch, Int_RelBranch, IS_CONDBRANCH|IN_RS|DELAYSLOT),
//8
INSTR("addi", &Jit::Comp_IType, Dis_addi, Int_IType, IN_RS|IN_IMM16|OUT_RT),
INSTR("addiu", &Jit::Comp_IType, Dis_addi, Int_IType, IN_RS|IN_IMM16|OUT_RT),
INSTR("slti", &Jit::Comp_IType, Dis_IType, Int_IType, IN_RS|IN_IMM16|OUT_RT),
INSTR("sltiu", &Jit::Comp_IType, Dis_IType, Int_IType, IN_RS|IN_IMM16|OUT_RT),
INSTR("andi", &Jit::Comp_IType, Dis_IType, Int_IType, IN_RS|IN_IMM16|OUT_RT),
INSTR("ori", &Jit::Comp_IType, Dis_ori, Int_IType, IN_RS|IN_IMM16|OUT_RT),
INSTR("xori", &Jit::Comp_IType, Dis_IType, Int_IType, IN_RS|IN_IMM16|OUT_RT),
INSTR("lui", &Jit::Comp_IType, Dis_IType1, Int_IType, IN_IMM16|OUT_RT),
//16
ENCODING(Cop0), //cop0
ENCODING(Cop1), //cop1
ENCODING(Cop2), //cop2
INVALID, //copU
INSTR("beql", &Jit::Comp_RelBranch, Dis_RelBranch2, Int_RelBranch, IS_CONDBRANCH|IN_RS|IN_RT|DELAYSLOT), //L = likely
INSTR("bnel", &Jit::Comp_RelBranch, Dis_RelBranch2, Int_RelBranch, IS_CONDBRANCH|IN_RS|IN_RT|DELAYSLOT),
INSTR("blezl", &Jit::Comp_RelBranch, Dis_RelBranch, Int_RelBranch, IS_CONDBRANCH|IN_RS|DELAYSLOT),
INSTR("bgtzl", &Jit::Comp_RelBranch, Dis_RelBranch, Int_RelBranch, IS_CONDBRANCH|IN_RS|DELAYSLOT),
//24
{VFPU0},
{VFPU1},
{Emu},
{VFPU3},
{Spe2},//special2
{-2}, //, "jalx", 0, Dis_JumpType, Int_JumpType},
{-2},
{Spe3},//special3
//32
INSTR("lb", &Jit::Comp_ITypeMem, Dis_ITypeMem, Int_ITypeMem, IN_MEM|IN_IMM16|IN_RS_ADDR|OUT_RT),
INSTR("lh", &Jit::Comp_ITypeMem, Dis_ITypeMem, Int_ITypeMem, IN_MEM|IN_IMM16|IN_RS_ADDR|OUT_RT),
INSTR("lwl", &Jit::Comp_ITypeMem, Dis_ITypeMem, Int_ITypeMem, IN_MEM|IN_IMM16|IN_RS_ADDR|OUT_RT),
INSTR("lw", &Jit::Comp_ITypeMem, Dis_ITypeMem, Int_ITypeMem, IN_MEM|IN_IMM16|IN_RS_ADDR|OUT_RT),
INSTR("lbu", &Jit::Comp_ITypeMem, Dis_ITypeMem, Int_ITypeMem, IN_MEM|IN_IMM16|IN_RS_ADDR|OUT_RT),
INSTR("lhu", &Jit::Comp_ITypeMem, Dis_ITypeMem, Int_ITypeMem, IN_MEM|IN_IMM16|IN_RS_ADDR|OUT_RT),
INSTR("lwr", &Jit::Comp_ITypeMem, Dis_ITypeMem, Int_ITypeMem, IN_MEM|IN_IMM16|IN_RS_ADDR|OUT_RT),
{-2},
//40
INSTR("sb", &Jit::Comp_ITypeMem, Dis_ITypeMem, Int_ITypeMem, IN_IMM16|IN_RS_ADDR|IN_RT|OUT_MEM),
INSTR("sh", &Jit::Comp_ITypeMem, Dis_ITypeMem, Int_ITypeMem, IN_IMM16|IN_RS_ADDR|IN_RT|OUT_MEM),
INSTR("swl", &Jit::Comp_ITypeMem, Dis_ITypeMem, Int_ITypeMem, IN_IMM16|IN_RS_ADDR|IN_RT|OUT_MEM),
INSTR("sw", &Jit::Comp_ITypeMem, Dis_ITypeMem, Int_ITypeMem, IN_IMM16|IN_RS_ADDR|IN_RT|OUT_MEM),
{-2},
{-2},
INSTR("swr", &Jit::Comp_ITypeMem, Dis_ITypeMem, Int_ITypeMem, IN_IMM16|IN_RS_ADDR|IN_RT|OUT_MEM),
INSTR("cache", &Jit::Comp_Generic, Dis_Generic, Int_Cache, 0),
//48
INSTR("ll", &Jit::Comp_Generic, Dis_Generic, 0, 0),
INSTR("lwc1", &Jit::Comp_FPULS, Dis_FPULS, Int_FPULS, IN_RT|IN_RS_ADDR),
INSTR("lv.s", &Jit::Comp_Generic, Dis_SV, Int_SV, IS_VFPU),
{-2}, // HIT THIS IN WIPEOUT
{VFPU4Jump},
INSTR("lv", &Jit::Comp_Generic, Dis_SVLRQ, Int_SVQ, IS_VFPU),
INSTR("lv.q", &Jit::Comp_Generic, Dis_SVQ, Int_SVQ, IS_VFPU), //copU
{VFPU5},
//56
INSTR("sc", &Jit::Comp_Generic, Dis_Generic, 0, 0),
INSTR("swc1", &Jit::Comp_FPULS, Dis_FPULS, Int_FPULS, 0), //copU
INSTR("sv.s", &Jit::Comp_Generic, Dis_SV, Int_SV,IS_VFPU),
{-2},
//60
{VFPU6},
INSTR("sv", &Jit::Comp_Generic, Dis_SVLRQ, Int_SVQ, IS_VFPU), //copU
INSTR("sv.q", &Jit::Comp_Generic, Dis_SVQ, Int_SVQ, IS_VFPU),
INSTR("vflush", &Jit::Comp_Generic, Dis_Vflush, Int_Vflush, IS_VFPU),
};
const MIPSInstruction tableSpecial[64] = /// 000000 ...... ...... .......... xxxxxx
{
INSTR("sll", &Jit::Comp_ShiftType, Dis_ShiftType, Int_ShiftType, OUT_RD|IN_RT|IN_SA),
{-2}, // copu
INSTR("srl", &Jit::Comp_ShiftType, Dis_ShiftType, Int_ShiftType, OUT_RD|IN_RT|IN_SA),
INSTR("sra", &Jit::Comp_ShiftType, Dis_ShiftType, Int_ShiftType, OUT_RD|IN_RT|IN_SA),
INSTR("sllv", &Jit::Comp_ShiftType, Dis_VarShiftType, Int_ShiftType, OUT_RD|IN_RT|IN_RS_SHIFT),
{-2},
INSTR("srlv", &Jit::Comp_ShiftType, Dis_VarShiftType, Int_ShiftType, OUT_RD|IN_RT|IN_RS_SHIFT),
INSTR("srav", &Jit::Comp_ShiftType, Dis_VarShiftType, Int_ShiftType, OUT_RD|IN_RT|IN_RS_SHIFT),
//8
INSTR("jr", &Jit::Comp_JumpReg, Dis_JumpRegType, Int_JumpRegType,0),
INSTR("jalr", &Jit::Comp_JumpReg, Dis_JumpRegType, Int_JumpRegType,0),
INSTR("movz", &Jit::Comp_Generic, Dis_RType3, Int_RType3, OUT_RD|IN_RS|IN_RT),
INSTR("movn", &Jit::Comp_Generic, Dis_RType3, Int_RType3, OUT_RD|IN_RS|IN_RT),
INSTR("syscall", &Jit::Comp_Syscall, Dis_Syscall, Int_Syscall,0),
INSTR("break", &Jit::Comp_Generic, Dis_Generic, Int_Break, 0),
{-2},
INSTR("sync", &Jit::Comp_Generic, Dis_Generic, Int_Sync, 0),
//16
INSTR("mfhi", &Jit::Comp_Generic, Dis_FromHiloTransfer, Int_MulDivType, OUT_RD|IN_OTHER),
INSTR("mthi", &Jit::Comp_Generic, Dis_ToHiloTransfer, Int_MulDivType, IN_RS|OUT_OTHER),
INSTR("mflo", &Jit::Comp_Generic, Dis_FromHiloTransfer, Int_MulDivType, OUT_RD|IN_OTHER),
INSTR("mtlo", &Jit::Comp_Generic, Dis_ToHiloTransfer, Int_MulDivType, IN_RS|OUT_OTHER),
{-2},
{-2},
INSTR("clz", &Jit::Comp_Generic, Dis_RType2, Int_RType2, OUT_RD|IN_RS|IN_RT),
INSTR("clo", &Jit::Comp_Generic, Dis_RType2, Int_RType2, OUT_RD|IN_RS|IN_RT),
//24
INSTR("mult", &Jit::Comp_Generic, Dis_MulDivType, Int_MulDivType, IN_RS|IN_RT|OUT_OTHER),
INSTR("multu", &Jit::Comp_Generic, Dis_MulDivType, Int_MulDivType, IN_RS|IN_RT|OUT_OTHER),
INSTR("div", &Jit::Comp_Generic, Dis_MulDivType, Int_MulDivType, IN_RS|IN_RT|OUT_OTHER),
INSTR("divu", &Jit::Comp_Generic, Dis_MulDivType, Int_MulDivType, IN_RS|IN_RT|OUT_OTHER),
INSTR("madd", &Jit::Comp_Generic, Dis_MulDivType, Int_MulDivType, IN_RS|IN_RT|OUT_OTHER),
INSTR("maddu", &Jit::Comp_Generic, Dis_MulDivType, Int_MulDivType, IN_RS|IN_RT|OUT_OTHER),
{-2},
{-2},
//32
INSTR("add", &Jit::Comp_RType3, Dis_RType3, Int_RType3,IN_RS|IN_RT|OUT_RD),
INSTR("addu", &Jit::Comp_RType3, Dis_addu, Int_RType3,IN_RS|IN_RT|OUT_RD),
INSTR("sub", &Jit::Comp_RType3, Dis_RType3, Int_RType3,IN_RS|IN_RT|OUT_RD),
INSTR("subu", &Jit::Comp_RType3, Dis_RType3, Int_RType3,IN_RS|IN_RT|OUT_RD),
INSTR("and", &Jit::Comp_RType3, Dis_RType3, Int_RType3,IN_RS|IN_RT|OUT_RD),
INSTR("or", &Jit::Comp_RType3, Dis_addu, Int_RType3,IN_RS|IN_RT|OUT_RD),
INSTR("xor", &Jit::Comp_RType3, Dis_RType3, Int_RType3,IN_RS|IN_RT|OUT_RD),
INSTR("nor", &Jit::Comp_RType3, Dis_RType3, Int_RType3,IN_RS|IN_RT|OUT_RD),
//40
{-2},
{-2},
INSTR("slt", &Jit::Comp_Generic, Dis_RType3, Int_RType3,IN_RS|IN_RT|OUT_RD),
INSTR("sltu", &Jit::Comp_Generic, Dis_RType3, Int_RType3,IN_RS|IN_RT|OUT_RD),
INSTR("max", &Jit::Comp_Generic, Dis_RType3, Int_RType3,IN_RS|IN_RT|OUT_RD),
INSTR("min", &Jit::Comp_Generic, Dis_RType3, Int_RType3,IN_RS|IN_RT|OUT_RD),
{-2},
{-2},
//48
INSTR("tge", &Jit::Comp_Generic, Dis_RType3, 0, 0),
INSTR("tgeu", &Jit::Comp_Generic, Dis_RType3, 0, 0),
INSTR("tlt", &Jit::Comp_Generic, Dis_RType3, 0, 0),
INSTR("tltu", &Jit::Comp_Generic, Dis_RType3, 0, 0),
INSTR("teq", &Jit::Comp_Generic, Dis_RType3, 0, 0),
{-2},
INSTR("tne", &Jit::Comp_Generic, Dis_RType3, 0, 0),
{-2},
//56
{-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2},
};
const MIPSInstruction tableSpecial2[64] =
{
INSTR("add.s", &Jit::Comp_FPU3op, Dis_FPU3op, Int_FPU3op, 0),
INSTR("sub.s", &Jit::Comp_FPU3op, Dis_FPU3op, Int_FPU3op, 0),
INSTR("mul.s", &Jit::Comp_FPU3op, Dis_FPU3op, Int_FPU3op, 0),
INSTR("div.s", &Jit::Comp_FPU3op, Dis_FPU3op, Int_FPU3op, 0),
INSTR("sqrt.s", &Jit::Comp_FPU2op, Dis_FPU2op, Int_FPU2op, 0),
INSTR("abs.s", &Jit::Comp_FPU2op, Dis_FPU2op, Int_FPU2op, 0),
INSTR("mov.s", &Jit::Comp_FPU2op, Dis_FPU2op, Int_FPU2op, 0),
INSTR("neg.s", &Jit::Comp_FPU2op, Dis_FPU2op, Int_FPU2op, 0),
//8
{-2}, {-2}, {-2}, {-2},
INSTR("round.w.s", &Jit::Comp_FPU2op, Dis_FPU2op, Int_FPU2op, 0),
INSTR("trunc.w.s", &Jit::Comp_FPU2op, Dis_FPU2op, Int_FPU2op, 0),
INSTR("ceil.w.s", &Jit::Comp_FPU2op, Dis_FPU2op, Int_FPU2op, 0),
INSTR("floor.w.s", &Jit::Comp_FPU2op, Dis_FPU2op, Int_FPU2op, 0),
//16
{-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2},
//24
{-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2},
//32
INSTR("cvt.s.w", &Jit::Comp_Generic, Dis_FPU2op, Int_FPU2op, 0),
{-2}, {-2}, {-2},
//36
INSTR("cvt.w.s", &Jit::Comp_Generic, Dis_FPU2op, Int_FPU2op, 0),
{-2},
INSTR("dis.int", &Jit::Comp_Generic, Dis_Generic, Int_Interrupt, 0),
{-2},
//40
{-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2},
//48
INSTR("c.f", &Jit::Comp_Generic, Dis_FPUComp, Int_FPUComp, OUT_FPUFLAG),
INSTR("c.un", &Jit::Comp_Generic, Dis_FPUComp, Int_FPUComp, OUT_FPUFLAG),
INSTR("c.eq", &Jit::Comp_Generic, Dis_FPUComp, Int_FPUComp, OUT_FPUFLAG),
INSTR("c.ueq", &Jit::Comp_Generic, Dis_FPUComp, Int_FPUComp, OUT_FPUFLAG),
INSTR("c.olt", &Jit::Comp_Generic, Dis_FPUComp, Int_FPUComp, OUT_FPUFLAG),
INSTR("c.ult", &Jit::Comp_Generic, Dis_FPUComp, Int_FPUComp, OUT_FPUFLAG),
INSTR("c.ole", &Jit::Comp_Generic, Dis_FPUComp, Int_FPUComp, OUT_FPUFLAG),
INSTR("c.ule", &Jit::Comp_Generic, Dis_FPUComp, Int_FPUComp, OUT_FPUFLAG),
INSTR("c.sf", &Jit::Comp_Generic, Dis_FPUComp, Int_FPUComp, OUT_FPUFLAG),
INSTR("c.ngle",&Jit::Comp_Generic, Dis_FPUComp, Int_FPUComp, OUT_FPUFLAG),
INSTR("c.seq", &Jit::Comp_Generic, Dis_FPUComp, Int_FPUComp, OUT_FPUFLAG),
INSTR("c.ngl", &Jit::Comp_Generic, Dis_FPUComp, Int_FPUComp, OUT_FPUFLAG),
INSTR("c.lt", &Jit::Comp_Generic, Dis_FPUComp, Int_FPUComp, OUT_FPUFLAG),
INSTR("c.nge", &Jit::Comp_Generic, Dis_FPUComp, Int_FPUComp, OUT_FPUFLAG),
INSTR("c.le", &Jit::Comp_Generic, Dis_FPUComp, Int_FPUComp, OUT_FPUFLAG),
INSTR("c.ngt", &Jit::Comp_Generic, Dis_FPUComp, Int_FPUComp, OUT_FPUFLAG),
};
const MIPSInstruction tableSpecial3[64] =
{
INSTR("ext", &Jit::Comp_Generic, Dis_Special3, Int_Special3, IN_RS|OUT_RT),
{-2},
{-2},
{-2},
INSTR("ins", &Jit::Comp_Generic, Dis_Special3, Int_Special3, IN_RS|OUT_RT),
{-2},
{-2},
{-2},
//8
{-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2},
//16
{-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2},
//32
{ALLEGREX0},
{-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2},
//40
{ALLEGREX0},
{-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2},
{-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2},
{-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2},
{-2}, {-2}, {-2},
INSTR("rdhwr", &Jit::Comp_Generic, Dis_Generic, 0, 0),
{-2}, {-2}, {-2}, {-2},
};
const MIPSInstruction tableRegImm[32] =
{
INSTR("bltz", &Jit::Comp_RelBranchRI, Dis_RelBranch, Int_RelBranchRI, IS_CONDBRANCH|IN_RS),
INSTR("bgez", &Jit::Comp_RelBranchRI, Dis_RelBranch, Int_RelBranchRI, IS_CONDBRANCH|IN_RS),
INSTR("bltzl", &Jit::Comp_RelBranchRI, Dis_RelBranch, Int_RelBranchRI, IS_CONDBRANCH|IN_RS),
INSTR("bgezl", &Jit::Comp_RelBranchRI, Dis_RelBranch, Int_RelBranchRI, IS_CONDBRANCH|IN_RS),
{-2},
{-2},
{-2},
{-2},
INSTR("tgei", &Jit::Comp_Generic, Dis_Generic, 0, 0),
INSTR("tgeiu", &Jit::Comp_Generic, Dis_Generic, 0, 0),
INSTR("tlti", &Jit::Comp_Generic, Dis_Generic, 0, 0),
INSTR("tltiu", &Jit::Comp_Generic, Dis_Generic, 0, 0),
INSTR("teqi", &Jit::Comp_Generic, Dis_Generic, 0, 0),
{-2},
INSTR("tnei", &Jit::Comp_Generic, Dis_Generic, 0, 0),
{-2},
INSTR("bltzal", &Jit::Comp_Generic, Dis_RelBranch, 0, IS_CONDBRANCH|IN_RS|OUT_RA),
INSTR("bgezal", &Jit::Comp_Generic, Dis_RelBranch, 0, IS_CONDBRANCH|IN_RS|OUT_RA),
INSTR("bltzall", &Jit::Comp_Generic, Dis_RelBranch, 0, IS_CONDBRANCH|IN_RS|OUT_RA), //L = likely
INSTR("bgezall", &Jit::Comp_Generic, Dis_RelBranch, 0, IS_CONDBRANCH|IN_RS|OUT_RA),
{-2},
{-2},
{-2},
{-2},
{-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2},
INSTR("synci", &Jit::Comp_Generic, Dis_Generic, 0, 0),
};
const MIPSInstruction tableCop2[32] =
{
INSTR("mfc2", &Jit::Comp_Generic, Dis_Generic, 0, OUT_RT),
{-2},
INSTR("cfc2", &Jit::Comp_Generic, Dis_Generic, 0, 0),
INSTR("mfv", &Jit::Comp_Generic, Dis_Mftv, Int_Mftv, 0),
INSTR("mtc2", &Jit::Comp_Generic, Dis_Generic, 0, IN_RT),
{-2},
INSTR("ctc2", &Jit::Comp_Generic, Dis_Generic, 0, 0),
INSTR("mtv", &Jit::Comp_Generic, Dis_Mftv, Int_Mftv, 0),
{Cop2BC2},
INSTR("??", &Jit::Comp_Generic, Dis_Generic, 0, 0),
INSTR("??", &Jit::Comp_Generic, Dis_Generic, 0, 0),
INSTR("??", &Jit::Comp_Generic, Dis_Generic, 0, 0),
INSTR("??", &Jit::Comp_Generic, Dis_Generic, 0, 0),
INSTR("??", &Jit::Comp_Generic, Dis_Generic, 0, 0),
INSTR("??", &Jit::Comp_Generic, Dis_Generic, 0, 0),
INSTR("??", &Jit::Comp_Generic, Dis_Generic, 0, 0),
{-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2},
{-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2},
};
const MIPSInstruction tableCop2BC2[4] =
{
INSTR("bvf", &Jit::Comp_VBranch, Dis_VBranch,Int_VBranch,IS_CONDBRANCH),
INSTR("bvt", &Jit::Comp_VBranch, Dis_VBranch,Int_VBranch,IS_CONDBRANCH),
INSTR("bvfl", &Jit::Comp_VBranch, Dis_VBranch,Int_VBranch,IS_CONDBRANCH),
INSTR("bvtl", &Jit::Comp_VBranch, Dis_VBranch,Int_VBranch,IS_CONDBRANCH),
};
const MIPSInstruction tableCop0[32] =
{
INSTR("mfc0", &Jit::Comp_Generic, Dis_Generic, 0, OUT_RT),
{-2},
{-2},
{-2},
INSTR("mtc0", &Jit::Comp_Generic, Dis_Generic, 0, IN_RT),
{-2},
{-2},
{-2},
{-2},
{-2},
INSTR("rdpgpr", &Jit::Comp_Generic, Dis_Generic, 0, 0),
INSTR("mfmc0", &Jit::Comp_Generic, Dis_Generic, 0, 0),
{-2},
{-2},
INSTR("wrpgpr", &Jit::Comp_Generic, Dis_Generic, 0, 0),
{-2},
{Cop0CO},{Cop0CO},{Cop0CO},{Cop0CO},{Cop0CO},{Cop0CO},{Cop0CO},{Cop0CO},
{Cop0CO},{Cop0CO},{Cop0CO},{Cop0CO},{Cop0CO},{Cop0CO},{Cop0CO},{Cop0CO},
};
//we won't encounter these since we only do user mode emulation
MIPSInstruction tableCop0CO[64] =
{
{-2},
INSTR("tlbr", &Jit::Comp_Generic, Dis_Generic, 0, 0),
INSTR("tlbwi", &Jit::Comp_Generic, Dis_Generic, 0, 0),
{-2},
{-2},
{-2},
INSTR("tlbwr", &Jit::Comp_Generic, Dis_Generic, 0, 0),
{-2},
INSTR("tlbp", &Jit::Comp_Generic, Dis_Generic, 0, 0),
{-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2},
{-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2},
INSTR("eret", &Jit::Comp_Generic, Dis_Generic, 0, 0),
INSTR("iack", &Jit::Comp_Generic, Dis_Generic, 0, 0),
{-2}, {-2}, {-2}, {-2}, {-2},
INSTR("deret", &Jit::Comp_Generic, Dis_Generic, 0, 0),
INSTR("wait", &Jit::Comp_Generic, Dis_Generic, 0, 0),
{-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2},
{-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2},
{-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2},
{-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2},
};
MIPSInstruction tableCop1[32] =
{
INSTR("mfc1",&Jit::Comp_mxc1, Dis_mxc1,Int_mxc1, OUT_RT),
{-2},
INSTR("cfc1",&Jit::Comp_mxc1, Dis_mxc1,Int_mxc1, 0),
{-2},
INSTR("mtc1",&Jit::Comp_mxc1, Dis_mxc1,Int_mxc1, IN_RT),
{-2},
INSTR("ctc1",&Jit::Comp_mxc1, Dis_mxc1,Int_mxc1, 0),
{-2},
{Cop1BC}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2},
{Spe2}, {-2}, {-2}, {-2},
{Spe2}, {-2}, {-2}, {-2},
{-2},{-2},{-2},{-2},{-2},{-2},{-2},{-2},
};
MIPSInstruction tableCop1BC[32] =
{
{-1,"bc1f", &Jit::Comp_FPUBranch, Dis_FPUBranch, Int_FPUBranch,IS_CONDBRANCH|IN_FPUFLAG},
{-1,"bc1t", &Jit::Comp_FPUBranch, Dis_FPUBranch, Int_FPUBranch,IS_CONDBRANCH|IN_FPUFLAG},
{-1,"bc1fl", &Jit::Comp_FPUBranch, Dis_FPUBranch, Int_FPUBranch,IS_CONDBRANCH|IN_FPUFLAG},
{-1,"bc1tl", &Jit::Comp_FPUBranch, Dis_FPUBranch, Int_FPUBranch,IS_CONDBRANCH|IN_FPUFLAG},
{-2},{-2},{-2},{-2},
{-2},{-2},{-2},{-2},{-2},{-2},{-2},{-2},
{-2},{-2},{-2},{-2},{-2},{-2},{-2},{-2},
{-2},{-2},{-2},{-2},{-2},{-2},{-2},{-2},
};
MIPSInstruction tableVFPU0[8] =
{
INSTR("vadd",&Jit::Comp_Generic, Dis_VectorSet3, Int_VecDo3, IS_VFPU),
INSTR("vsub",&Jit::Comp_Generic, Dis_VectorSet3, Int_VecDo3, IS_VFPU),
INSTR("vsbn",&Jit::Comp_Generic, Dis_VectorSet3, 0, IS_VFPU),
{-2}, {-2}, {-2}, {-2},
INSTR("vdiv",&Jit::Comp_Generic, Dis_VectorSet3, Int_VecDo3, IS_VFPU),
};
MIPSInstruction tableVFPU1[8] =
{
INSTR("vmul",&Jit::Comp_Generic, Dis_VectorSet3, Int_VecDo3, IS_VFPU),
INSTR("vdot",&Jit::Comp_Generic, Dis_VectorDot, Int_VDot, IS_VFPU),
INSTR("vscl",&Jit::Comp_Generic, Dis_VScl, Int_VScl, IS_VFPU),
INSTR("vhdp",&Jit::Comp_Generic, Dis_Generic, 0, IS_VFPU),
{-2},
INSTR("vcrs",&Jit::Comp_Generic, Dis_Vcrs, Int_Vcrs, IS_VFPU),
INSTR("vdet",&Jit::Comp_Generic, Dis_Generic, 0, IS_VFPU),
{-2},
};
MIPSInstruction tableVFPU3[8] = //011011 xxx
{
INSTR("vcmp",&Jit::Comp_Generic, Dis_Vcmp, Int_Vcmp, IS_VFPU),
INSTR("v???",&Jit::Comp_Generic, Dis_Generic, Int_Vcmp, IS_VFPU), // 0x6de84848 in motogp
INSTR("vmin",&Jit::Comp_Generic, Dis_Generic, 0, IS_VFPU),
INSTR("vmax",&Jit::Comp_Generic, Dis_Generic, 0, IS_VFPU),
{-2},
INSTR("vscmp",&Jit::Comp_Generic, Dis_Generic, 0, IS_VFPU),
INSTR("vsge",&Jit::Comp_Generic, Dis_Generic, 0, IS_VFPU),
INSTR("vslt",&Jit::Comp_Generic, Dis_Generic, 0, IS_VFPU),
};
MIPSInstruction tableVFPU4Jump[32] = //110100 xxxxx
{
{VFPU4},
{VFPU7},
{VFPU9},
INSTR("vcst", &Jit::Comp_Generic, Dis_Vcst, Int_Vcst, IS_VFPU),
{-2},{-2},{-2},{-2},
//8
{-2},{-2},{-2},{-2},
{-2},{-2},{-2},{-2},
//16
INSTR("vf2in", &Jit::Comp_Generic, Dis_Vf2i, Int_Vf2i, IS_VFPU),
INSTR("vf2iz", &Jit::Comp_Generic, Dis_Vf2i, Int_Vf2i, IS_VFPU),
INSTR("vf2iu", &Jit::Comp_Generic, Dis_Vf2i, Int_Vf2i, IS_VFPU),
INSTR("vf2id", &Jit::Comp_Generic, Dis_Vf2i, Int_Vf2i, IS_VFPU),
//20
INSTR("vi2f", &Jit::Comp_Generic, Dis_Vf2i, Int_Vi2f, IS_VFPU),
INSTR("vcmov", &Jit::Comp_Generic, Dis_Vcmov,Int_Vcmov,IS_VFPU),
{-2},
{-2},
INSTR("vwbn.s", &Jit::Comp_Generic, Dis_Generic, 0, IS_VFPU),
INSTR("vwbn.s", &Jit::Comp_Generic, Dis_Generic, 0, IS_VFPU),
INSTR("vwbn.s", &Jit::Comp_Generic, Dis_Generic, 0, IS_VFPU),
INSTR("vwbn.s", &Jit::Comp_Generic, Dis_Generic, 0, IS_VFPU),
INSTR("vwbn.s", &Jit::Comp_Generic, Dis_Generic, 0, IS_VFPU),
INSTR("vwbn.s", &Jit::Comp_Generic, Dis_Generic, 0, IS_VFPU),
INSTR("vwbn.s", &Jit::Comp_Generic, Dis_Generic, 0, IS_VFPU),
INSTR("vwbn.s", &Jit::Comp_Generic, Dis_Generic, 0, IS_VFPU),
};
MIPSInstruction tableVFPU7[32] =
{
INSTR("vrnds", &Jit::Comp_Generic, Dis_Generic, Int_Vrnds, IS_VFPU),
INSTR("vrndi", &Jit::Comp_Generic, Dis_Generic, Int_VrndX, IS_VFPU),
INSTR("vrndf1", &Jit::Comp_Generic, Dis_Generic, Int_VrndX, IS_VFPU),
INSTR("vrndf2", &Jit::Comp_Generic, Dis_Generic, Int_VrndX, IS_VFPU),
{-2},{-2},{-2},{-2},
//8
{-2},{-2},{-2},{-2},
{-2},{-2},{-2},{-2},
//16
{-2},
{-2},
INSTR("vf2h", &Jit::Comp_Generic, Dis_Generic, 0, IS_VFPU),
INSTR("vh2f", &Jit::Comp_Generic, Dis_Generic, 0, IS_VFPU),
{-2},
{-2},
{-2},
INSTR("vlgb", &Jit::Comp_Generic, Dis_Generic, 0, IS_VFPU),
//24
{-2}, // Seen in BraveStory, initialization
{-2},
INSTR("vus2i", &Jit::Comp_Generic, Dis_Generic, 0, IS_VFPU),
INSTR("vs2i", &Jit::Comp_Generic, Dis_Generic, 0, IS_VFPU),
INSTR("vi2uc", &Jit::Comp_Generic, Dis_Vi2x, Int_Vi2x, IS_VFPU),
INSTR("vi2c", &Jit::Comp_Generic, Dis_Vi2x, Int_Vi2x, IS_VFPU),
INSTR("vi2us", &Jit::Comp_Generic, Dis_Vi2x, Int_Vi2x, IS_VFPU),
INSTR("vi2s", &Jit::Comp_Generic, Dis_Vi2x, Int_Vi2x, IS_VFPU),
};
// 110100 00000 10100 0000000000000000
// 110100 00000 10111 0000000000000000
MIPSInstruction tableVFPU4[32] = //110100 00000 xxxxx
{
INSTR("vmov", &Jit::Comp_Generic, Dis_VectorSet2, Int_VV2Op,IS_VFPU),
INSTR("vabs", &Jit::Comp_Generic, Dis_VectorSet2, Int_VV2Op,IS_VFPU),
INSTR("vneg", &Jit::Comp_Generic, Dis_VectorSet2, Int_VV2Op,IS_VFPU),
INSTR("vidt", &Jit::Comp_Generic, Dis_VectorSet1, Int_Vidt,IS_VFPU),
INSTR("vsat0", &Jit::Comp_Generic, Dis_VectorSet2, Int_VV2Op, IS_VFPU),
INSTR("vsat1", &Jit::Comp_Generic, Dis_VectorSet2, Int_VV2Op, IS_VFPU),
INSTR("vzero", &Jit::Comp_Generic, Dis_VectorSet1, Int_VVectorInit, IS_VFPU),
INSTR("vone", &Jit::Comp_Generic, Dis_VectorSet1, Int_VVectorInit, IS_VFPU),
//8
{-2},{-2},{-2},{-2},{-2},{-2},{-2},{-2},
//16
INSTR("vrcp", &Jit::Comp_Generic, Dis_VectorSet2, Int_VV2Op, IS_VFPU),
INSTR("vrsq", &Jit::Comp_Generic, Dis_VectorSet2, Int_VV2Op, IS_VFPU),
INSTR("vsin", &Jit::Comp_Generic, Dis_VectorSet2, Int_VV2Op, IS_VFPU),
INSTR("vcos", &Jit::Comp_Generic, Dis_VectorSet2, Int_VV2Op, IS_VFPU),
INSTR("vexp2", &Jit::Comp_Generic, Dis_VectorSet2, Int_VV2Op, IS_VFPU),
INSTR("vlog2", &Jit::Comp_Generic, Dis_VectorSet2, Int_VV2Op, IS_VFPU),
INSTR("vsqrt", &Jit::Comp_Generic, Dis_VectorSet2, Int_VV2Op, IS_VFPU),
INSTR("vasin", &Jit::Comp_Generic, Dis_VectorSet2, Int_VV2Op, IS_VFPU),
//24
INSTR("vnrcp", &Jit::Comp_Generic, Dis_VectorSet2, Int_VV2Op,IS_VFPU),
{-2},
INSTR("vnsin", &Jit::Comp_Generic, Dis_VectorSet2, Int_VV2Op,IS_VFPU),
{-2},
INSTR("vrexp2",&Jit::Comp_Generic, Dis_VectorSet2, Int_VV2Op, IS_VFPU),
{-2},{-2},{-2},
//32
};
MIPSInstruction tableVFPU5[8] = //110111 xxx
{
INSTR("vpfxs",&Jit::Comp_Generic, Dis_VPFXST, Int_VPFX, IS_VFPU),
INSTR("vpfxs",&Jit::Comp_Generic, Dis_VPFXST, Int_VPFX, IS_VFPU),
INSTR("vpfxt",&Jit::Comp_Generic, Dis_VPFXST, Int_VPFX, IS_VFPU),
INSTR("vpfxt",&Jit::Comp_Generic, Dis_VPFXST, Int_VPFX, IS_VFPU),
INSTR("vpfxd", &Jit::Comp_Generic, Dis_VPFXD, Int_VPFX, IS_VFPU),
INSTR("vpfxd", &Jit::Comp_Generic, Dis_VPFXD, Int_VPFX, IS_VFPU),
INSTR("viim.s",&Jit::Comp_Generic,Dis_Viim,Int_Viim, IS_VFPU),
INSTR("vfim.s",&Jit::Comp_Generic,Dis_Viim,Int_Viim, IS_VFPU),
};
MIPSInstruction tableVFPU6[32] = //111100 xxx
{
//0
INSTR("vmmul",&Jit::Comp_Generic, Dis_MatrixMult, Int_Vmmul, IS_VFPU),
INSTR("vmmul",&Jit::Comp_Generic, Dis_MatrixMult, Int_Vmmul, IS_VFPU),
INSTR("vmmul",&Jit::Comp_Generic, Dis_MatrixMult, Int_Vmmul, IS_VFPU),
INSTR("vmmul",&Jit::Comp_Generic, Dis_MatrixMult, Int_Vmmul, IS_VFPU),
INSTR("v(h)tfm2",&Jit::Comp_Generic, Dis_Vtfm, Int_Vtfm, IS_VFPU),
INSTR("v(h)tfm2",&Jit::Comp_Generic, Dis_Vtfm, Int_Vtfm, IS_VFPU),
INSTR("v(h)tfm2",&Jit::Comp_Generic, Dis_Vtfm, Int_Vtfm, IS_VFPU),
INSTR("v(h)tfm2",&Jit::Comp_Generic, Dis_Vtfm, Int_Vtfm, IS_VFPU),
//8
INSTR("v(h)tfm3",&Jit::Comp_Generic, Dis_Vtfm, Int_Vtfm, IS_VFPU),
INSTR("v(h)tfm3",&Jit::Comp_Generic, Dis_Vtfm, Int_Vtfm, IS_VFPU),
INSTR("v(h)tfm3",&Jit::Comp_Generic, Dis_Vtfm, Int_Vtfm, IS_VFPU),
INSTR("v(h)tfm3",&Jit::Comp_Generic, Dis_Vtfm, Int_Vtfm, IS_VFPU),
INSTR("v(h)tfm4",&Jit::Comp_Generic, Dis_Vtfm, Int_Vtfm, IS_VFPU),
INSTR("v(h)tfm4",&Jit::Comp_Generic, Dis_Vtfm, Int_Vtfm, IS_VFPU),
INSTR("v(h)tfm4",&Jit::Comp_Generic, Dis_Vtfm, Int_Vtfm, IS_VFPU),
INSTR("v(h)tfm4",&Jit::Comp_Generic, Dis_Vtfm, Int_Vtfm, IS_VFPU),
//16
INSTR("vmscl",&Jit::Comp_Generic, Dis_Generic, Int_Vmscl, IS_VFPU),
INSTR("vmscl",&Jit::Comp_Generic, Dis_Generic, Int_Vmscl, IS_VFPU),
INSTR("vmscl",&Jit::Comp_Generic, Dis_Generic, Int_Vmscl, IS_VFPU),
INSTR("vmscl",&Jit::Comp_Generic, Dis_Generic, Int_Vmscl, IS_VFPU),
INSTR("vcrsp/vqm",&Jit::Comp_Generic, Dis_CrossQuat, Int_CrossQuat, IS_VFPU),
INSTR("vcrsp/vqm",&Jit::Comp_Generic, Dis_CrossQuat, Int_CrossQuat, IS_VFPU),
INSTR("vcrsp/vqm",&Jit::Comp_Generic, Dis_CrossQuat, Int_CrossQuat, IS_VFPU),
INSTR("vcrsp/vqm",&Jit::Comp_Generic, Dis_CrossQuat, Int_CrossQuat, IS_VFPU),
//24
{-2},
{-2},
{-2},
{-2},
{VFPUMatrix1},
INSTR("vrot",&Jit::Comp_Generic, Dis_VRot, Int_Vrot, IS_VFPU),
{-2},
{-2},
};
MIPSInstruction tableVFPUMatrixSet1[16] = //111100 11100 0xxxx (rm x is 16)
{
INSTR("vmmov",&Jit::Comp_Generic, Dis_MatrixSet2, Int_Vmmov, IS_VFPU),
{-2},
{-2},
INSTR("vmidt",&Jit::Comp_Generic, Dis_MatrixSet1, Int_VMatrixInit, IS_VFPU),
{-2},
{-2},
INSTR("vmzero", &Jit::Comp_Generic, Dis_MatrixSet1, Int_VMatrixInit, IS_VFPU),
INSTR("vmone", &Jit::Comp_Generic, Dis_MatrixSet1, Int_VMatrixInit, IS_VFPU),
{-2},{-2},{-2},{-2},
{-2},{-2},{-2},{-2},
};
MIPSInstruction tableVFPU9[32] = //110100 00010 xxxxx
{
INSTR("vsrt1", &Jit::Comp_Generic, Dis_Generic, 0, IS_VFPU),
INSTR("vsrt2", &Jit::Comp_Generic, Dis_Generic, 0, IS_VFPU),
INSTR("vbfy1", &Jit::Comp_Generic, Dis_Vbfy, Int_Vbfy, IS_VFPU),
INSTR("vbfy2", &Jit::Comp_Generic, Dis_Vbfy, Int_Vbfy, IS_VFPU),
//4
INSTR("vocp", &Jit::Comp_Generic, Dis_Vbfy, Int_Vocp, IS_VFPU), // one's complement
INSTR("vsocp", &Jit::Comp_Generic, Dis_Generic, 0, IS_VFPU),
INSTR("vfad", &Jit::Comp_Generic, Dis_Vfad, Int_Vfad, IS_VFPU),
INSTR("vavg", &Jit::Comp_Generic, Dis_Vfad, Int_Vavg, IS_VFPU),
//8
INSTR("vsrt3", &Jit::Comp_Generic, Dis_Generic, 0, IS_VFPU),
INSTR("vsrt4", &Jit::Comp_Generic, Dis_Generic, 0, IS_VFPU),
INSTR("vsgn", &Jit::Comp_Generic, Dis_Vbfy, Int_Vsgn, IS_VFPU),
{-2},
//12
{-2},
{-2},
{-2},
{-2},
//16
INSTR("vmfvc", &Jit::Comp_Generic, Dis_Generic, 0, IS_VFPU),
INSTR("vmtvc", &Jit::Comp_Generic, Dis_Generic, 0, IS_VFPU),
{-2},
{-2},
//20
{-2},{-2},{-2},{-2},
//24
{-2},
INSTR("vt4444", &Jit::Comp_Generic, Dis_Generic, Int_ColorConv, IS_VFPU),
INSTR("vt5551", &Jit::Comp_Generic, Dis_Generic, Int_ColorConv, IS_VFPU),
INSTR("vt5650", &Jit::Comp_Generic, Dis_Generic, Int_ColorConv, IS_VFPU),
//28
{-2},{-2},{-2},{-2},
};
MIPSInstruction tableALLEGREX0[32] = //111111
{
{-2},
{-2},
INSTR("wsbh",&Jit::Comp_Generic, Dis_Allegrex2,Int_Allegrex2,0),
INSTR("wsbw",&Jit::Comp_Generic, Dis_Allegrex2,Int_Allegrex2,0),
{-2}, {-2}, {-2}, {-2},
//8
{-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2}, {-2},
//16
INSTR("seb", &Jit::Comp_Allegrex, Dis_Allegrex,Int_Allegrex, IN_RT|OUT_RD),
{-2},
{-2},
{-2},
//20
INSTR("bitrev",&Jit::Comp_Generic, Dis_Allegrex,Int_Allegrex, IN_RT|OUT_RD),
{-2},
{-2},
{-2},
//24
INSTR("seh", &Jit::Comp_Allegrex, Dis_Allegrex,Int_Allegrex, IN_RT|OUT_RD),
{-2},
{-2},
{-2},
//28
{-2},
{-2},
{-2},
{-2},
};
MIPSInstruction tableEMU[4] =
{
INSTR("RUNBLOCK",&Jit::Comp_RunBlock,Dis_Emuhack,Int_Emuhack, 0xFFFFFFFF),
INSTR("RetKrnl", 0,Dis_Emuhack,Int_Emuhack, 0),
{-2},
{-2},
};
const int encodingBits[NumEncodings][2] =
{
{26, 6}, //IMME
{0, 6}, //Special
{0, 6}, //special2
{0, 6}, //special3
{16, 5}, //RegImm
{21, 5}, //Cop0
{0, 6}, //Cop0CO
{21, 5}, //Cop1
{16, 5}, //Cop1BC
{21, 5}, //Cop2
{16, 2}, //Cop2BC2
{0, 0}, //Cop2Rese
{23, 3}, //VFPU0
{23, 3}, //VFPU1
{23, 1}, //VFPU3
{21, 5}, //VFPU4Jump
{16, 5}, //VFPU7
{16, 5}, //VFPU4
{23, 3}, //VFPU5
{21, 5}, //VFPU6
{16, 3}, //VFPUMatrix1
{16, 5}, //VFPU9
{6, 5}, //ALLEGREX0
{24, 2}, //EMUHACK
};
const MIPSInstruction *mipsTables[NumEncodings] =
{
tableImmediate,
tableSpecial,
tableSpecial2,
tableSpecial3,
tableRegImm,
tableCop0,
tableCop0CO,
tableCop1,
tableCop1BC,
tableCop2,
tableCop2BC2,
0,
tableVFPU0, //vfpu0
tableVFPU1, //vfpu1
tableVFPU3, //vfpu3
tableVFPU4Jump,
tableVFPU7, //vfpu4 110100 00001
tableVFPU4, //vfpu4 110100 00000
tableVFPU5, //vfpu5 110111
tableVFPU6, //vfpu6 111100
tableVFPUMatrixSet1,
tableVFPU9,
tableALLEGREX0,
tableEMU
};
//arm encoding table
//const MIPSInstruction mipsinstructions[] =
//{
//{Comp_Unimpl,Dis_Unimpl, Info_NN, 0, 0x601, 0x1FE,0}, //could be used for drec hook :) bits 5-24 plus 0-3 are available, 19 bits are more than enough
// DATA PROCESSING INSTRUCTIONS
// S
// {Comp_AND, Dis_AND, Info_DP, 0, DATAP(0, 0), 0x20F, {0}},
//};
//Todo : generate dispatcher functions from above tables
//instead of this horribly slow abomination
const MIPSInstruction *MIPSGetInstruction(u32 op)
{
MipsEncoding encoding = Imme;
const MIPSInstruction *instr = &tableImmediate[op>>26];
while (instr->altEncoding != -1)
{
const MIPSInstruction *table = mipsTables[encoding];
int mask = ((1<<encodingBits[encoding][1])-1);
int shift = encodingBits[encoding][0];
int subop = (op >> shift) & mask;
instr = &table[subop];
if (encoding == Rese)
return 0; //invalid instruction
// if (encoding == Spe3)
// __asm int 3
if (!instr)
return 0;
if (instr->altEncoding == -2)
{
//BAD!!
return 0; //invalid instruction
}
encoding = (MipsEncoding)instr->altEncoding;
}
//alright, we have a valid MIPS instruction!
return instr;
}
void MIPSCompileOp(u32 op)
{
if (op==0)
return;
const MIPSInstruction *instr = MIPSGetInstruction(op);
if (instr)
{
if (instr->compile)
(MIPSComp::jit->*(instr->compile))(op); // woohoo, member functions pointers!
else
{
ERROR_LOG(CPU,"MIPSCompileOp %08x failed",op);
//MessageBox(0,"ARGH2",0,0);//compile an interpreter call
}
}
else
{
ERROR_LOG(CPU, "MIPSCompileOp: Invalid instruction %08x", op);
}
}
void MIPSDisAsm(u32 op, u32 pc, char *out)
{
if (op == 0)
{
//ANDEQ R0,R0,R0 is probably not used for legitimate purposes :P
sprintf(out,"---\t---");
}
else
{
disPC = pc;
const MIPSInstruction *instr = MIPSGetInstruction(op);
if (instr && instr->disasm)
instr->disasm(op, out);
else
{
strcpy(out, "no instruction :(");
//__asm int 3
MIPSGetInstruction(op);
}
}
}
void MIPSInterpret(u32 op) //only for those rare ones
{
//if ((op&0xFFFFF000) == 0xd0110000)
// Crash();
//if (atable[CRUNCH_MIPS_OP(op)].interpret)
// atable[CRUNCH_MIPS_OP(op)].interpret(op);
// else
// _dbg_assert_msg_(MIPS,0,"Trying to interpret instruction that can't be interpreted");
const MIPSInstruction *instr = MIPSGetInstruction(op);
if (instr && instr->interpret)
instr->interpret(op);
else
{
ERROR_LOG(CPU,"Unknown instruction %08x", op);
// Try to disassemble it
char disasm[256];
MIPSDisAsm(op, currentMIPS->pc, disasm);
_dbg_assert_msg_(CPU, 0, disasm);
currentMIPS->pc += 4;
}
}
#define _RS ((op>>21) & 0x1F)
#define _RT ((op>>16) & 0x1F)
#define _RD ((op>>11) & 0x1F)
#define R(i) (currentMIPS->r[i])
void MIPSInterpret_Fast(u32 op)
{
switch (op >> 29)
{
case 0x1:
{
s32 simm = (s32)(s16)(op & 0xFFFF);
u32 uimm = (u32)(u16)(op & 0xFFFF);
u32 suimm = (u32)simm;
int rt = _RT;
int rs = _RS;
if (rt == 0) //destination register is zero register
return; //nop
switch (op>>26)
{
case 8: R(rt) = R(rs) + simm; break; //addi
case 9: R(rt) = R(rs) + simm; break; //addiu
case 10: R(rt) = (s32)R(rs) < simm; break; //slti
case 11: R(rt) = R(rs) < suimm; break; //sltiu
case 12: R(rt) = R(rs) & uimm; break; //andi
case 13: R(rt) = R(rs) | uimm; break; //ori
case 14: R(rt) = R(rs) ^ uimm; break; //xori
case 15: R(rt) = uimm << 16; break; //lui
default:
break;
}
currentMIPS->pc += 4;
}
break;
default:
MIPSInterpret(op);
}
}
const char *MIPSGetName(u32 op)
{
static const char *noname = "unk";
const MIPSInstruction *instr = MIPSGetInstruction(op);
if (!instr)
return noname;
else
return instr->name;
}
u32 MIPSGetInfo(u32 op)
{
// int crunch = CRUNCH_MIPS_OP(op);
const MIPSInstruction *instr = MIPSGetInstruction(op);
if (instr)
return instr->flags;
else
return 0;
}
MIPSInterpretFunc MIPSGetInterpretFunc(u32 op)
{
const MIPSInstruction *instr = MIPSGetInstruction(op);
if (instr->interpret)
return instr->interpret;
else
return 0;
}
// TODO: Do something that makes sense here.
int MIPSGetInstructionCycleEstimate(u32 op)
{
u32 info = MIPSGetInfo(op);
if (info & DELAYSLOT)
return 2;
else
return 1;
}
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