1 files changed, 13 insertions, 0 deletions
diff --git a/src/math/atan_386.s b/src/math/atan_386.s
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--- /dev/null
+++ b/src/math/atan_386.s
@@ -0,0 +1,13 @@
+// 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 Atan(x float64) float64
+TEXT ·Atan(SB),NOSPLIT,$0
+	FMOVD   x+0(FP), F0  // F0=x
+	FLD1                 // F0=1, F1=x
+	FPATAN               // F0=atan(F1/F0)
+	FMOVDP  F0, ret+8(FP)
+	RET