| /* |
| * float-to-int |
| * |
| * We have to clip values to int min/max per the specification. The |
| * expected common case is a "reasonable" value that converts directly |
| * to modest integer. The EABI convert function isn't doing this for us. |
| */ |
| /* unop vA, vB */ |
| GET_OPB(a3) # a3 <- B |
| GET_OPA4(rOBJ) # rOBJ <- A+ |
| GET_VREG_F(fa0, a3) |
| FETCH_ADVANCE_INST(1) # advance rPC, load rINST |
| |
| li t0, INT_MIN_AS_FLOAT |
| mtc1 t0, fa1 |
| #ifdef MIPS32REVGE6 |
| /* |
| * TODO: simplify this when the MIPS64R6 emulator |
| * supports NAN2008=1. |
| */ |
| cmp.le.s ft0, fa1, fa0 |
| GET_INST_OPCODE(t1) # extract opcode from rINST |
| bc1nez ft0, 1f # if INT_MIN <= vB, proceed to truncation |
| cmp.eq.s ft0, fa0, fa0 |
| selnez.s fa0, fa1, ft0 # fa0 = ordered(vB) ? INT_MIN_AS_FLOAT : 0 |
| #else |
| c.ole.s fcc0, fa1, fa0 |
| GET_INST_OPCODE(t1) # extract opcode from rINST |
| bc1t fcc0, 1f # if INT_MIN <= vB, proceed to truncation |
| c.eq.s fcc0, fa0, fa0 |
| mtc1 zero, fa0 |
| movt.s fa0, fa1, fcc0 # fa0 = ordered(vB) ? INT_MIN_AS_FLOAT : 0 |
| #endif |
| 1: |
| trunc.w.s fa0, fa0 |
| SET_VREG_F_GOTO(fa0, rOBJ, t1) # vA <- result |
