| The Android Open Source Project | 2ad60cf | 2008-10-21 07:00:00 -0700 | [diff] [blame^] | 1 | %default {"preinstr":""} |
| 2 | /* |
| 3 | * Generic 32-bit unary operation. Provide an "instr" line that |
| 4 | * specifies an instruction that performs "result = op r0". |
| 5 | * This could be an ARM instruction or a function call. |
| 6 | * |
| 7 | * for: neg-int, not-int, neg-float, int-to-float, float-to-int, |
| 8 | * int-to-byte, int-to-char, int-to-short |
| 9 | */ |
| 10 | /* unop vA, vB */ |
| 11 | mov r3, rINST, lsr #12 @ r3<- B |
| 12 | mov r9, rINST, lsr #8 @ r9<- A+ |
| 13 | GET_VREG(r0, r3) @ r0<- vB |
| 14 | and r9, r9, #15 |
| 15 | $preinstr @ optional op; may set condition codes |
| 16 | FETCH_ADVANCE_INST(1) @ advance rPC, load rINST |
| 17 | $instr @ r0<- op, r0-r3 changed |
| 18 | GET_INST_OPCODE(ip) @ extract opcode from rINST |
| 19 | SET_VREG(r0, r9) @ vAA<- r0 |
| 20 | GOTO_OPCODE(ip) @ jump to next instruction |
| 21 | /* 9-10 instructions */ |