C++ (Cpp) IsOpcodeNop示例

示例#1

文件： Recompiler Analysis.c 项目： DaMan69/project64

BOOL DelaySlotAffectBranch(DWORD PC) {
	OPCODE Branch, Delay;
	OPCODE_INFO infoBranch, infoDelay;

	if (IsOpcodeNop(PC + 4) == TRUE) { 
		return FALSE;
	}

	RSP_LW_IMEM(PC, &Branch.Hex);
	RSP_LW_IMEM(PC+4, &Delay.Hex);

	memset(&infoDelay,0,sizeof(infoDelay));
	memset(&infoBranch,0,sizeof(infoBranch));
	
	GetInstructionInfo(PC, &Branch, &infoBranch);
	GetInstructionInfo(PC+4, &Delay, &infoDelay);

	if ((infoDelay.flags & COPO_MF_Instruction) == COPO_MF_Instruction) {
		return TRUE;
	}

	if ((infoDelay.flags & Instruction_Mask) == VEC_Instruction) {
		return FALSE;
	}

	if (infoBranch.SourceReg0 == infoDelay.DestReg) { return TRUE; }
	if (infoBranch.SourceReg1 == infoDelay.DestReg) { return TRUE; }

	return FALSE;
}

示例#2

文件： rsp_recompiler_analysis.c 项目： lucashpandolfo/audacious-plugins

int32_t DelaySlotAffectBranch(uint32_t PC)
{
    RSPOPCODE Branch, Delay;
    OPCODE_INFO infoBranch, infoDelay;

    if (IsOpcodeNop(PC + 4) == 1) {
	return 0;
    }

    RSP_LW_IMEM(PC, &Branch.Hex);
    RSP_LW_IMEM(PC + 4, &Delay.Hex);

    memset(&infoDelay, 0, sizeof(infoDelay));
    memset(&infoBranch, 0, sizeof(infoBranch));

    GetInstructionInfo(PC, &Branch, &infoBranch);
    GetInstructionInfo(PC + 4, &Delay, &infoDelay);

    if ((infoDelay.flags & Instruction_Mask) == VEC_Instruction) {
	return 0;
    }

    if (infoBranch.SourceReg0 == infoDelay.DestReg) {
	return 1;
    }
    if (infoBranch.SourceReg1 == infoDelay.DestReg) {
	return 1;
    }

    return 0;
}