| Douglas Leung | 200f040 | 2016-02-25 20:05:47 -0800 | [diff] [blame] | 1 | %default {"preinstr":"", "result0":"a0"} |
| 2 | /* |
| 3 | * Generic 32-bit unary operation. Provide an "instr" line that |
| Alexey Frunze | 84603bf | 2016-10-21 19:54:43 -0700 | [diff] [blame] | 4 | * specifies an instruction that performs "result0 = op a0". |
| Douglas Leung | 200f040 | 2016-02-25 20:05:47 -0800 | [diff] [blame] | 5 | * This could be a MIPS instruction or a function call. |
| 6 | * |
| Alexey Frunze | 84603bf | 2016-10-21 19:54:43 -0700 | [diff] [blame] | 7 | * for: int-to-byte, int-to-char, int-to-short, |
| 8 | * neg-int, not-int, neg-float |
| Douglas Leung | 200f040 | 2016-02-25 20:05:47 -0800 | [diff] [blame] | 9 | */ |
| 10 | /* unop vA, vB */ |
| 11 | GET_OPB(a3) # a3 <- B |
| 12 | GET_OPA4(t0) # t0 <- A+ |
| 13 | GET_VREG(a0, a3) # a0 <- vB |
| 14 | FETCH_ADVANCE_INST(1) # advance rPC, load rINST |
| 15 | $preinstr # optional op |
| 16 | $instr # a0 <- op, a0-a3 changed |
| 17 | GET_INST_OPCODE(t1) # extract opcode from rINST |
| Alexey Frunze | 84603bf | 2016-10-21 19:54:43 -0700 | [diff] [blame] | 18 | SET_VREG_GOTO($result0, t0, t1) # vA <- result0 |