| Bill Buzbee | 3b0b4b9 | 2016-02-02 13:45:36 +0000 | [diff] [blame] | 1 | %default {"opcode":"lsl"} |
| 2 | /* |
| 3 | * Generic 64-bit shift operation. |
| 4 | */ |
| 5 | /* binop/2addr vA, vB */ |
| 6 | lsr w1, wINST, #12 // w1<- B |
| 7 | ubfx w2, wINST, #8, #4 // w2<- A |
| 8 | GET_VREG w1, w1 // x1<- vB |
| 9 | GET_VREG_WIDE x0, w2 // x0<- vA |
| 10 | FETCH_ADVANCE_INST 1 // advance rPC, load rINST |
| Vladimir Marko | e622022 | 2016-07-20 14:25:30 +0100 | [diff] [blame] | 11 | $opcode x0, x0, x1 // Do the shift. Only low 6 bits of x1 are used. |
| Bill Buzbee | 3b0b4b9 | 2016-02-02 13:45:36 +0000 | [diff] [blame] | 12 | GET_INST_OPCODE ip // extract opcode from rINST |
| 13 | SET_VREG_WIDE x0, w2 // vAA<- result |
| 14 | GOTO_OPCODE ip // jump to next instruction |
| 15 | /* 10-13 instructions */ |