1
0
mirror of https://github.com/golang/go synced 2024-10-04 14:31:21 -06:00
go/src/pkg/math/fdim_amd64.s
Charles L. Dorian 809479740f math: amd64 versions of fdim, fmax, fmin
Uses the SSE2 max, min instructions. Also shorter sqrt_amd64.s

R=rsc
CC=golang-dev
https://golang.org/cl/1216042
2010-05-18 22:33:50 -07:00

27 lines
552 B
ArmAsm

// 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.
// func Fdim(x, y float64) float64
TEXT ·Fdim(SB),7,$0
MOVSD x+0(FP), X0
SUBSD y+8(FP), X0
MOVSD $(0.0), X1
MAXSD X1, X0
MOVSD X0, r+16(FP)
RET
// func Fmax(x, y float64) float64
TEXT ·Fmax(SB),7,$0
MOVSD x+0(FP), X0
MAXSD y+8(FP), X0
MOVSD X0, r+16(FP)
RET
// func Fmin(x, y float64) float64
TEXT ·Fmin(SB),7,$0
MOVSD x+0(FP), X0
MINSD y+8(FP), X0
MOVSD X0, r+16(FP)
RET