blob: 318fa2c46572da938774d5ece1fff37c8e6771c6 [file] [log] [blame]
// 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 "textflag.h"
// func Remainder(x, y float64) float64
TEXT ·Remainder(SB),NOSPLIT,$0
FMOVD y+8(FP), F0 // F0=y
FMOVD x+0(FP), F0 // F0=x, F1=y
FPREM1 // 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)