| // -*- C -*- |
| // |
| // toshiba specific instructions. |
| // |
| |
| 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); |
| } |
