338 lines
17 KiB
C
338 lines
17 KiB
C
/***************************************************************************
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* Copyright (C) 2007 Ryan Schultz, PCSX-df Team, PCSX team *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* 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 *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
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***************************************************************************/
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/*
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* R3000A disassembler.
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*/
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#include "psxcommon.h"
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char ostr[512];
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// Names of registers
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char *disRNameGPR[] = {
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"r0", "at", "v0", "v1", "a0", "a1", "a2", "a3",
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"t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7",
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"s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7",
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"t8", "t9", "k0", "k1", "gp", "sp", "fp", "ra"};
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char *disRNameCP2D[] = {
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"VXY0", "VZ0", "VXY1", "VZ1", "VXY2", "VZ2", "RGB", "OTZ",
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"IR0", "IR1", "IR2", "IR3", "SXY0", "SXY1", "SXY2", "SXYP",
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"SZ0", "SZ1", "SZ2", "SZ3", "RGB0", "RGB1", "RGB2", "RES1",
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"MAC0", "MAC1", "MAC2", "MAC3", "IRGB", "ORGB", "LZCS", "LZCR"};
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char *disRNameCP2C[] = {
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"R11R12", "R13R21", "R22R23", "R31R32", "R33", "TRX", "TRY", "TRZ",
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"L11L12", "L13L21", "L22L23", "L31L32", "L33", "RBK", "BBK", "GBK",
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"LR1LR2", "LR3LG1", "LG2LG3", "LB1LB2", "LB3", "RFC", "GFC", "BFC",
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"OFX", "OFY", "H", "DQA", "DQB", "ZSF3", "ZSF4", "FLAG"};
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char *disRNameCP0[] = {
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"Index" , "Random" , "EntryLo0", "EntryLo1", "Context" , "PageMask" , "Wired" , "*Check me*",
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"BadVAddr" , "Count" , "EntryHi" , "Compare" , "Status" , "Cause" , "ExceptPC" , "PRevID" ,
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"Config" , "LLAddr" , "WatchLo" , "WatchHi" , "XContext", "*RES*" , "*RES*" , "*RES*" ,
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"*RES*" , "*RES* " , "PErr" , "CacheErr", "TagLo" , "TagHi" , "ErrorEPC" , "*RES*" };
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// Type deffinition of our functions
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typedef char* (*TdisR3000AF)(u32 code, u32 pc);
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// These macros are used to assemble the disassembler functions
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#define MakeDisFg(fn, b) char* fn(u32 code, u32 pc) { b; return ostr; }
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#define MakeDisF(fn, b) \
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static char* fn(u32 code, u32 pc) { \
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sprintf (ostr, "%8.8x %8.8x:", pc, code); \
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b; /*ostr[(strlen(ostr) - 1)] = 0;*/ return ostr; \
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}
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#include "r3000a.h"
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#undef _Funct_
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#undef _Rd_
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#undef _Rt_
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#undef _Rs_
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#undef _Sa_
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#undef _Im_
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#undef _Target_
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#define _Funct_ ((code ) & 0x3F) // The funct part of the instruction register
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#define _Rd_ ((code >> 11) & 0x1F) // The rd part of the instruction register
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#define _Rt_ ((code >> 16) & 0x1F) // The rt part of the instruction register
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#define _Rs_ ((code >> 21) & 0x1F) // The rs part of the instruction register
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#define _Sa_ ((code >> 6) & 0x1F) // The sa part of the instruction register
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#define _Im_ ( code & 0xFFFF) // The immediate part of the instruction register
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#define _Target_ ((pc & 0xf0000000) + ((code & 0x03ffffff) * 4))
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#define _Branch_ (pc + 4 + ((short)_Im_ * 4))
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#define _OfB_ _Im_, _nRs_
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#define dName(i) sprintf(ostr, "%s %-7s,", ostr, i)
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#define dGPR(i) sprintf(ostr, "%s %8.8x (%s),", ostr, psxRegs.GPR.r[i], disRNameGPR[i])
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#define dCP0(i) sprintf(ostr, "%s %8.8x (%s),", ostr, psxRegs.CP0.r[i], disRNameCP0[i])
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#define dCP2D(i) sprintf(ostr, "%s %8.8x (%s),", ostr, psxRegs.CP2D.r[i], disRNameCP2D[i])
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#define dCP2C(i) sprintf(ostr, "%s %8.8x (%s),", ostr, psxRegs.CP2C.r[i], disRNameCP2C[i])
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#define dHI() sprintf(ostr, "%s %8.8x (%s),", ostr, psxRegs.GPR.n.hi, "hi")
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#define dLO() sprintf(ostr, "%s %8.8x (%s),", ostr, psxRegs.GPR.n.lo, "lo")
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#define dImm() sprintf(ostr, "%s %4.4x (%d),", ostr, _Im_, _Im_)
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#define dTarget() sprintf(ostr, "%s %8.8x,", ostr, _Target_)
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#define dSa() sprintf(ostr, "%s %2.2x (%d),", ostr, _Sa_, _Sa_)
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#define dOfB() sprintf(ostr, "%s %4.4x (%8.8x (%s)),", ostr, _Im_, psxRegs.GPR.r[_Rs_], disRNameGPR[_Rs_])
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#define dOffset() sprintf(ostr, "%s %8.8x,", ostr, _Branch_)
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#define dCode() sprintf(ostr, "%s %8.8x,", ostr, (code >> 6) & 0xffffff)
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/*********************************************************
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* Arithmetic with immediate operand *
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* Format: OP rt, rs, immediate *
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*********************************************************/
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MakeDisF(disADDI, dName("ADDI"); dGPR(_Rt_); dGPR(_Rs_); dImm();)
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MakeDisF(disADDIU, dName("ADDIU"); dGPR(_Rt_); dGPR(_Rs_); dImm();)
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MakeDisF(disANDI, dName("ANDI"); dGPR(_Rt_); dGPR(_Rs_); dImm();)
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MakeDisF(disORI, dName("ORI"); dGPR(_Rt_); dGPR(_Rs_); dImm();)
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MakeDisF(disSLTI, dName("SLTI"); dGPR(_Rt_); dGPR(_Rs_); dImm();)
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MakeDisF(disSLTIU, dName("SLTIU"); dGPR(_Rt_); dGPR(_Rs_); dImm();)
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MakeDisF(disXORI, dName("XORI"); dGPR(_Rt_); dGPR(_Rs_); dImm();)
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/*********************************************************
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* Register arithmetic *
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* Format: OP rd, rs, rt *
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*********************************************************/
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MakeDisF(disADD, dName("ADD"); dGPR(_Rd_); dGPR(_Rs_); dGPR(_Rt_);)
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MakeDisF(disADDU, dName("ADDU"); dGPR(_Rd_); dGPR(_Rs_); dGPR(_Rt_);)
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MakeDisF(disAND, dName("AND"); dGPR(_Rd_); dGPR(_Rs_); dGPR(_Rt_);)
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MakeDisF(disNOR, dName("NOR"); dGPR(_Rd_); dGPR(_Rs_); dGPR(_Rt_);)
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MakeDisF(disOR, dName("OR"); dGPR(_Rd_); dGPR(_Rs_); dGPR(_Rt_);)
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MakeDisF(disSLT, dName("SLT"); dGPR(_Rd_); dGPR(_Rs_); dGPR(_Rt_);)
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MakeDisF(disSLTU, dName("SLTU"); dGPR(_Rd_); dGPR(_Rs_); dGPR(_Rt_);)
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MakeDisF(disSUB, dName("SUB"); dGPR(_Rd_); dGPR(_Rs_); dGPR(_Rt_);)
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MakeDisF(disSUBU, dName("SUBU"); dGPR(_Rd_); dGPR(_Rs_); dGPR(_Rt_);)
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MakeDisF(disXOR, dName("XOR"); dGPR(_Rd_); dGPR(_Rs_); dGPR(_Rt_);)
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/*********************************************************
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* Register arithmetic & Register trap logic *
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* Format: OP rs, rt *
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*********************************************************/
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MakeDisF(disDIV, dName("DIV"); dGPR(_Rs_); dGPR(_Rt_);)
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MakeDisF(disDIVU, dName("DIVU"); dGPR(_Rs_); dGPR(_Rt_);)
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MakeDisF(disMULT, dName("MULT"); dGPR(_Rs_); dGPR(_Rt_);)
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MakeDisF(disMULTU, dName("MULTU"); dGPR(_Rs_); dGPR(_Rt_);)
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/*********************************************************
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* Register branch logic *
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* Format: OP rs, offset *
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*********************************************************/
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MakeDisF(disBGEZ, dName("BGEZ"); dGPR(_Rs_); dOffset();)
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MakeDisF(disBGEZAL, dName("BGEZAL"); dGPR(_Rs_); dOffset();)
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MakeDisF(disBGTZ, dName("BGTZ"); dGPR(_Rs_); dOffset();)
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MakeDisF(disBLEZ, dName("BLEZ"); dGPR(_Rs_); dOffset();)
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MakeDisF(disBLTZ, dName("BLTZ"); dGPR(_Rs_); dOffset();)
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MakeDisF(disBLTZAL, dName("BLTZAL"); dGPR(_Rs_); dOffset();)
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/*********************************************************
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* Shift arithmetic with constant shift *
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* Format: OP rd, rt, sa *
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*********************************************************/
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MakeDisF(disSLL, if (code) { dName("SLL"); dGPR(_Rd_); dGPR(_Rt_); dSa(); } else { dName("NOP"); })
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MakeDisF(disSRA, dName("SRA"); dGPR(_Rd_); dGPR(_Rt_); dSa();)
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MakeDisF(disSRL, dName("SRL"); dGPR(_Rd_); dGPR(_Rt_); dSa();)
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/*********************************************************
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* Shift arithmetic with variant register shift *
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* Format: OP rd, rt, rs *
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*********************************************************/
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MakeDisF(disSLLV, dName("SLLV"); dGPR(_Rd_); dGPR(_Rt_); dGPR(_Rs_);)
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MakeDisF(disSRAV, dName("SRAV"); dGPR(_Rd_); dGPR(_Rt_); dGPR(_Rs_);)
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MakeDisF(disSRLV, dName("SRLV"); dGPR(_Rd_); dGPR(_Rt_); dGPR(_Rs_);)
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/*********************************************************
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* Load higher 16 bits of the first word in GPR with imm *
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* Format: OP rt, immediate *
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*********************************************************/
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MakeDisF(disLUI, dName("LUI"); dGPR(_Rt_); dImm();)
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/*********************************************************
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* Move from HI/LO to GPR *
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* Format: OP rd *
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*********************************************************/
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MakeDisF(disMFHI, dName("MFHI"); dGPR(_Rd_); dHI();)
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MakeDisF(disMFLO, dName("MFLO"); dGPR(_Rd_); dLO();)
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/*********************************************************
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* Move from GPR to HI/LO *
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* Format: OP rd *
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*********************************************************/
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MakeDisF(disMTHI, dName("MTHI"); dHI(); dGPR(_Rs_);)
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MakeDisF(disMTLO, dName("MTLO"); dLO(); dGPR(_Rs_);)
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/*********************************************************
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* Special purpose instructions *
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* Format: OP *
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*********************************************************/
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MakeDisF(disBREAK, dName("BREAK"))
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MakeDisF(disRFE, dName("RFE"))
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MakeDisF(disSYSCALL, dName("SYSCALL"))
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MakeDisF(disHLE, dName("HLE"))
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MakeDisF(disRTPS, dName("RTPS"))
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MakeDisF(disOP , dName("OP"))
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MakeDisF(disNCLIP, dName("NCLIP"))
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MakeDisF(disDPCS, dName("DPCS"))
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MakeDisF(disINTPL, dName("INTPL"))
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MakeDisF(disMVMVA, dName("MVMVA"))
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MakeDisF(disNCDS , dName("NCDS"))
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MakeDisF(disCDP , dName("CDP"))
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MakeDisF(disNCDT , dName("NCDT"))
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MakeDisF(disNCCS , dName("NCCS"))
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MakeDisF(disCC , dName("CC"))
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MakeDisF(disNCS , dName("NCS"))
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MakeDisF(disNCT , dName("NCT"))
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MakeDisF(disSQR , dName("SQR"))
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MakeDisF(disDCPL , dName("DCPL"))
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MakeDisF(disDPCT , dName("DPCT"))
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MakeDisF(disAVSZ3, dName("AVSZ3"))
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MakeDisF(disAVSZ4, dName("AVSZ4"))
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MakeDisF(disRTPT , dName("RTPT"))
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MakeDisF(disGPF , dName("GPF"))
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MakeDisF(disGPL , dName("GPL"))
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MakeDisF(disNCCT , dName("NCCT"))
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MakeDisF(disMFC2, dName("MFC2"); dGPR(_Rt_); dCP2C(_Rd_);)
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MakeDisF(disMTC2, dName("MTC2"); dCP2C(_Rd_); dGPR(_Rt_);)
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MakeDisF(disCFC2, dName("CFC2"); dGPR(_Rt_); dCP2C(_Rd_);)
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MakeDisF(disCTC2, dName("CTC2"); dCP2C(_Rd_); dGPR(_Rt_);)
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/*********************************************************
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* Register branch logic *
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* Format: OP rs, rt, offset *
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*********************************************************/
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MakeDisF(disBEQ, dName("BEQ"); dGPR(_Rs_); dGPR(_Rt_); dOffset();)
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MakeDisF(disBNE, dName("BNE"); dGPR(_Rs_); dGPR(_Rt_); dOffset();)
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/*********************************************************
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* Jump to target *
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* Format: OP target *
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*********************************************************/
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MakeDisF(disJ, dName("J"); dTarget();)
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MakeDisF(disJAL, dName("JAL"); dTarget(); dGPR(31);)
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/*********************************************************
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* Register jump *
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* Format: OP rs, rd *
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*********************************************************/
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MakeDisF(disJR, dName("JR"); dGPR(_Rs_);)
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MakeDisF(disJALR, dName("JALR"); dGPR(_Rs_); dGPR(_Rd_))
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/*********************************************************
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* Load and store for GPR *
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* Format: OP rt, offset(base) *
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*********************************************************/
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MakeDisF(disLB, dName("LB"); dGPR(_Rt_); dOfB();)
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MakeDisF(disLBU, dName("LBU"); dGPR(_Rt_); dOfB();)
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MakeDisF(disLH, dName("LH"); dGPR(_Rt_); dOfB();)
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MakeDisF(disLHU, dName("LHU"); dGPR(_Rt_); dOfB();)
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MakeDisF(disLW, dName("LW"); dGPR(_Rt_); dOfB();)
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MakeDisF(disLWL, dName("LWL"); dGPR(_Rt_); dOfB();)
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MakeDisF(disLWR, dName("LWR"); dGPR(_Rt_); dOfB();)
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MakeDisF(disLWC2, dName("LWC2"); dCP2D(_Rt_); dOfB();)
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MakeDisF(disSB, dName("SB"); dGPR(_Rt_); dOfB();)
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MakeDisF(disSH, dName("SH"); dGPR(_Rt_); dOfB();)
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MakeDisF(disSW, dName("SW"); dGPR(_Rt_); dOfB();)
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MakeDisF(disSWL, dName("SWL"); dGPR(_Rt_); dOfB();)
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MakeDisF(disSWR, dName("SWR"); dGPR(_Rt_); dOfB();)
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MakeDisF(disSWC2, dName("SWC2"); dCP2D(_Rt_); dOfB();)
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/*********************************************************
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* Moves between GPR and COPx *
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* Format: OP rt, fs *
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*********************************************************/
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MakeDisF(disMFC0, dName("MFC0"); dGPR(_Rt_); dCP0(_Rd_);)
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MakeDisF(disMTC0, dName("MTC0"); dCP0(_Rd_); dGPR(_Rt_);)
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MakeDisF(disCFC0, dName("CFC0"); dGPR(_Rt_); dCP0(_Rd_);)
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MakeDisF(disCTC0, dName("CTC0"); dCP0(_Rd_); dGPR(_Rt_);)
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/*********************************************************
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* Unknow instruction (would generate an exception) *
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* Format: ? *
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*********************************************************/
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MakeDisF(disNULL, dName("*** Bad OP ***");)
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TdisR3000AF disR3000A_SPECIAL[] = { // Subset of disSPECIAL
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disSLL , disNULL , disSRL , disSRA , disSLLV , disNULL , disSRLV , disSRAV ,
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disJR , disJALR , disNULL, disNULL, disSYSCALL, disBREAK , disNULL , disNULL ,
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disMFHI, disMTHI , disMFLO, disMTLO, disNULL , disNULL , disNULL , disNULL ,
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disMULT, disMULTU, disDIV , disDIVU, disNULL , disNULL , disNULL , disNULL ,
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disADD , disADDU , disSUB , disSUBU, disAND , disOR , disXOR , disNOR ,
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disNULL, disNULL , disSLT , disSLTU, disNULL , disNULL , disNULL , disNULL ,
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disNULL, disNULL , disNULL, disNULL, disNULL , disNULL , disNULL , disNULL ,
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disNULL, disNULL , disNULL, disNULL, disNULL , disNULL , disNULL , disNULL};
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MakeDisF(disSPECIAL, disR3000A_SPECIAL[_Funct_](code, pc))
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TdisR3000AF disR3000A_BCOND[] = { // Subset of disBCOND
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disBLTZ , disBGEZ , disNULL, disNULL, disNULL, disNULL, disNULL, disNULL,
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disNULL , disNULL , disNULL, disNULL, disNULL, disNULL, disNULL, disNULL,
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disBLTZAL, disBGEZAL, disNULL, disNULL, disNULL, disNULL, disNULL, disNULL,
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disNULL , disNULL , disNULL, disNULL, disNULL, disNULL, disNULL, disNULL};
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MakeDisF(disBCOND, disR3000A_BCOND[_Rt_](code, pc))
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TdisR3000AF disR3000A_COP0[] = { // Subset of disCOP0
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disMFC0, disNULL, disCFC0, disNULL, disMTC0, disNULL, disCTC0, disNULL,
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disNULL, disNULL, disNULL, disNULL, disNULL, disNULL, disNULL, disNULL,
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disRFE , disNULL, disNULL, disNULL, disNULL, disNULL, disNULL, disNULL,
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disNULL, disNULL, disNULL, disNULL, disNULL, disNULL, disNULL, disNULL};
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MakeDisF(disCOP0, disR3000A_COP0[_Rs_](code, pc))
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TdisR3000AF disR3000A_BASIC[] = { // Subset of disBASIC (based on rs)
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disMFC2, disNULL, disCFC2, disNULL, disMTC2, disNULL, disCTC2, disNULL,
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disNULL, disNULL, disNULL, disNULL, disNULL, disNULL, disNULL, disNULL,
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disNULL, disNULL, disNULL, disNULL, disNULL, disNULL, disNULL, disNULL,
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disNULL, disNULL, disNULL, disNULL, disNULL, disNULL, disNULL, disNULL};
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MakeDisF(disBASIC, disR3000A_BASIC[_Rs_](code, pc))
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TdisR3000AF disR3000A_COP2[] = { // Subset of disR3000F_COP2 (based on funct)
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disBASIC, disRTPS , disNULL , disNULL , disNULL, disNULL , disNCLIP, disNULL,
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disNULL , disNULL , disNULL , disNULL , disOP , disNULL , disNULL , disNULL,
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disDPCS , disINTPL, disMVMVA, disNCDS , disCDP , disNULL , disNCDT , disNULL,
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disNULL , disNULL , disNULL , disNCCS , disCC , disNULL , disNCS , disNULL,
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disNCT , disNULL , disNULL , disNULL , disNULL, disNULL , disNULL , disNULL,
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disSQR , disDCPL , disDPCT , disNULL , disNULL, disAVSZ3, disAVSZ4, disNULL,
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disRTPT , disNULL , disNULL , disNULL , disNULL, disNULL , disNULL , disNULL,
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disNULL , disNULL , disNULL , disNULL , disNULL, disGPF , disGPL , disNCCT };
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MakeDisF(disCOP2, disR3000A_COP2[_Funct_](code, pc))
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TdisR3000AF disR3000A[] = {
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disSPECIAL , disBCOND , disJ , disJAL , disBEQ , disBNE , disBLEZ , disBGTZ ,
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disADDI , disADDIU , disSLTI , disSLTIU, disANDI, disORI , disXORI , disLUI ,
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disCOP0 , disNULL , disCOP2 , disNULL , disNULL, disNULL, disNULL , disNULL ,
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disNULL , disNULL , disNULL , disNULL , disNULL, disNULL, disNULL , disNULL ,
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disLB , disLH , disLWL , disLW , disLBU , disLHU , disLWR , disNULL ,
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disSB , disSH , disSWL , disSW , disNULL, disNULL, disSWR , disNULL ,
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disNULL , disNULL , disLWC2 , disNULL , disNULL, disNULL, disNULL , disNULL ,
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disNULL , disNULL , disSWC2 , disHLE , disNULL, disNULL, disNULL , disNULL };
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MakeDisFg(disR3000AF, disR3000A[code >> 26](code, pc))
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