| %def fcmp(wide="", r1="s1", r2="s2", cond="lt"): | |
| /* | |
| * Compare two floating-point values. Puts 0, 1, or -1 into the | |
| * destination register based on the results of the comparison. | |
| */ | |
| /* op vAA, vBB, vCC */ | |
| FETCH w0, 1 // w0<- CCBB | |
| lsr w4, wINST, #8 // w4<- AA | |
| and w2, w0, #255 // w2<- BB | |
| lsr w3, w0, #8 // w3<- CC | |
| GET_VREG$wide $r1, w2 | |
| GET_VREG$wide $r2, w3 | |
| fcmp $r1, $r2 | |
| cset w0, ne | |
| cneg w0, w0, $cond | |
| FETCH_ADVANCE_INST 2 // advance rPC, load rINST | |
| GET_INST_OPCODE ip // extract opcode from rINST | |
| SET_VREG w0, w4 // vAA<- w0 | |
| GOTO_OPCODE ip // jump to next instruction |