Home | History | Annotate | Download | only in math
      1 // Copyright 2010 The Go Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style
      3 // license that can be found in the LICENSE file.
      4 
      5 #include "textflag.h"
      6 
      7 // func Mod(x, y float64) float64
      8 TEXT Mod(SB),NOSPLIT,$0
      9 	FMOVD   y+8(FP), F0  // F0=y
     10 	FMOVD   x+0(FP), F0  // F0=x, F1=y
     11 	FPREM                // F0=reduced_x, F1=y
     12 	FSTSW   AX           // AX=status word
     13 	ANDW    $0x0400, AX
     14 	JNE     -3(PC)       // jump if reduction incomplete
     15 	FMOVDP  F0, F1       // F0=x-q*y
     16 	FMOVDP  F0, ret+16(FP)
     17 	RET
     18