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65 lines
1.9 KiB
C++
65 lines
1.9 KiB
C++
#include "MIPSReflection.h"
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#include <string.h>
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class CMIPS;
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using namespace MIPSReflection;
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INSTRUCTION* MIPSReflection::DereferenceInstruction(SUBTABLE* pSubTable, uint32 nOpcode)
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{
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unsigned int nIndex;
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nIndex = (nOpcode >> pSubTable->nShift) & pSubTable->nMask;
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return &(pSubTable->pTable[nIndex]);
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}
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void MIPSReflection::CopyMnemonic(INSTRUCTION* pInstr, CMIPS* pCtx, uint32 nOpcode, char* sText, unsigned int nCount)
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{
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strncpy(sText, pInstr->sMnemonic, nCount);
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}
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void MIPSReflection::SubTableMnemonic(INSTRUCTION* pInstr, CMIPS* pCtx, uint32 nOpcode, char* sText, unsigned int nCount)
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{
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pInstr = DereferenceInstruction(pInstr->pSubTable, nOpcode);
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if(pInstr->pGetMnemonic == NULL)
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{
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strncpy(sText, "???", nCount);
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return;
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}
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pInstr->pGetMnemonic(pInstr, pCtx, nOpcode, sText, nCount);
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}
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void MIPSReflection::SubTableOperands(INSTRUCTION* pInstr, CMIPS* pCtx, uint32 nAddress, uint32 nOpcode, char* sText, unsigned int nCount)
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{
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pInstr = DereferenceInstruction(pInstr->pSubTable, nOpcode);
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if(pInstr->pGetOperands == NULL)
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{
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strncpy(sText, "", nCount);
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return;
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}
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pInstr->pGetOperands(pInstr, pCtx, nAddress, nOpcode, sText, nCount);
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}
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bool MIPSReflection::IsBranch(INSTRUCTION* pInstr, CMIPS* pCtx, uint32 nOpcode)
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{
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return true;
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}
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bool MIPSReflection::SubTableIsBranch(INSTRUCTION* pInstr, CMIPS* pCtx, uint32 nOpcode)
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{
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pInstr = DereferenceInstruction(pInstr->pSubTable, nOpcode);
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if(pInstr->pIsBranch == NULL)
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{
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return false;
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}
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return pInstr->pIsBranch(pInstr, pCtx, nOpcode);
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}
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uint32 MIPSReflection::SubTableEffAddr(INSTRUCTION* pInstr, CMIPS* pCtx, uint32 nAddress, uint32 nOpcode)
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{
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pInstr = DereferenceInstruction(pInstr->pSubTable, nOpcode);
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if(pInstr->pGetEffectiveAddress == NULL)
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{
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return 0;
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}
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return pInstr->pGetEffectiveAddress(pInstr, pCtx, nAddress, nOpcode);
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}
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