Function DADDI

pcsx2/R5900OpcodeImpl.cpp:302–308

Rt = Rs + Im [exception on overflow] This is the full 64 bit version of ADDI. Overflow occurs at 64 bits instead of at 32 bits.

// This is the full 64 bit version of ADDI.  Overflow occurs at 64 bits instead
// of at 32 bits.
void DADDI()
{
	s64 result;
	bool overflow = _add64_Overflow( cpuRegs.GPR.r[_Rs_].SD[0], _Imm_, result );
	if (overflow || !_Rt_) return;
	cpuRegs.GPR.r[_Rt_].SD[0] = result;
}

// Rt = Rs + Im [overflow ignored]
// This instruction is effectively identical to DADDI.  It is not a true unsigned operation,