blob: 31a74e7262c12f5305cfba6c9240a23b5b21b282 [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 Atan2(y, x float64) float64 // =atan(y/x)
TEXT ·Atan2(SB),NOSPLIT,$0
FMOVD y+0(FP), F0 // F0=y
FMOVD x+8(FP), F0 // F0=x, F1=y
FPATAN // F0=atan(F1/F0)
FMOVDP F0, ret+16(FP)
RET