| buzbee | 1452bee | 2015-03-06 14:43:04 -0800 | [diff] [blame^] | 1 | /* |
| 2 | * Generic 32-bit floating point "/2addr" binary operation. Provide |
| 3 | * an "instr" line that specifies an instruction that performs |
| 4 | * "s2 = s0 op s1". |
| 5 | * |
| 6 | * For: add-float/2addr, sub-float/2addr, mul-float/2addr, div-float/2addr |
| 7 | */ |
| 8 | /* binop/2addr vA, vB */ |
| 9 | mov r3, rINST, lsr #12 @ r3<- B |
| 10 | mov r9, rINST, lsr #8 @ r9<- A+ |
| 11 | VREG_INDEX_TO_ADDR r3, r3 @ r3<- &vB |
| 12 | and r9, r9, #15 @ r9<- A |
| 13 | flds s1, [r3] @ s1<- vB |
| 14 | VREG_INDEX_TO_ADDR r9, r9 @ r9<- &vA |
| 15 | FETCH_ADVANCE_INST 1 @ advance rPC, load rINST |
| 16 | flds s0, [r9] @ s0<- vA |
| 17 | |
| 18 | $instr @ s2<- op |
| 19 | GET_INST_OPCODE ip @ extract opcode from rINST |
| 20 | fsts s2, [r9] @ vAA<- s2 |
| 21 | GOTO_OPCODE ip @ jump to next instruction |