| // Copyright 2010 The Go Authors. All rights reserved. | |
| // Use of this source code is governed by a BSD-style | |
| // license that can be found in the LICENSE file. | |
| #include "../../cmd/ld/textflag.h" | |
| // func Mod(x, y float64) float64 | |
| TEXT ·Mod(SB),NOSPLIT,$0 | |
| FMOVD y+8(FP), F0 // F0=y | |
| FMOVD x+0(FP), F0 // F0=x, F1=y | |
| FPREM // F0=reduced_x, F1=y | |
| FSTSW AX // AX=status word | |
| ANDW $0x0400, AX | |
| JNE -3(PC) // jump if reduction incomplete | |
| FMOVDP F0, F1 // F0=x-q*y | |
| FMOVDP F0, ret+16(FP) | |
| RET |