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| // 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
|
|
