011100,5.RS,5.RT,5.RD,00000000000:MMINORM:::MADD
"madd r<RS>, r<RT>":RD == 0
"madd r<RD>, r<RS>, r<RT>"
*r3900
{
signed64 prod = (U8_4 (VL4_8 (HI), VL4_8 (LO))
+ ((signed64) EXTEND32 (GPR[RT])
* (signed64) EXTEND32 (GPR[RS])));
check_mult_hilo (SD_, HIHISTORY, LOHISTORY);
TRACE_ALU_INPUT2 (GPR[RS], GPR[RT]);
LO = EXTEND32 (prod);
HI = EXTEND32 (VH4_8 (prod));
TRACE_ALU_RESULT2 (HI, LO);
if(RD != 0 )
GPR[RD] = LO;
}
011100,5.RS,5.RT,5.RD,00000000001:MMINORM:::MADDU
"maddu r<RS>, r<RT>":RD == 0
"maddu r<RD>, r<RS>, r<RT>"
*r3900
{
unsigned64 prod = (U8_4 (VL4_8 (HI), VL4_8 (LO))
+ ((unsigned64) VL4_8 (GPR[RS])
* (unsigned64) VL4_8 (GPR[RT])));
check_mult_hilo (SD_, HIHISTORY, LOHISTORY);
TRACE_ALU_INPUT2 (GPR[RS], GPR[RT]);
LO = EXTEND32 (prod);
HI = EXTEND32 (VH4_8 (prod));
TRACE_ALU_RESULT2 (HI, LO);
if(RD != 0)
GPR[RD] = LO;
}
000000,CODE.20,001110::CO1:::SDBBP
"sdbbp"
*r3900:
{
SignalException (DebugBreakPoint, instruction);
}