Function DSUB

pcsx2/R5900OpcodeImpl.cpp:356–362

Rd = Rs - Rt (Exception on Integer Overflow)

// Rd = Rs - Rt		(Exception on Integer Overflow)
void DSUB()
{
	s64 result;
	bool overflow = _add64_Overflow( cpuRegs.GPR.r[_Rs_].SD[0], -cpuRegs.GPR.r[_Rt_].SD[0], result );
	if (overflow || !_Rd_) return;
	cpuRegs.GPR.r[_Rd_].SD[0] = result;
}

void ADDU() 	{ if (!_Rd_) return; cpuRegs.GPR.r[_Rd_].UD[0] = u64(s64(s32(cpuRegs.GPR.r[_Rs_].UL[0]  + cpuRegs.GPR.r[_Rt_].UL[0]))); }	// Rd = Rs + Rt
void DADDU()    { if (!_Rd_) return; cpuRegs.GPR.r[_Rd_].UD[0] = cpuRegs.GPR.r[_Rs_].UD[0]  + cpuRegs.GPR.r[_Rt_].UD[0]; }