diff options
Diffstat (limited to 'src/math/asin_386.s')
| -rw-r--r-- | src/math/asin_386.s | 30 |
1 files changed, 0 insertions, 30 deletions
diff --git a/src/math/asin_386.s b/src/math/asin_386.s deleted file mode 100644 index 7dab390623..0000000000 --- a/src/math/asin_386.s +++ /dev/null @@ -1,30 +0,0 @@ -// 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 Asin(x float64) float64 -TEXT ·Asin(SB),NOSPLIT,$0 - FMOVD x+0(FP), F0 // F0=sin(x) - FMOVD F0, F1 // F0=sin(x), F1=sin(x) - FMULD F0, F0 // F0=sin(x)*sin(x), F1=sin(x) - FLD1 // F0=1, F1=sin(x)*sin(x), F2=sin(x) - FSUBRDP F0, F1 // F0=1-sin(x)*sin(x) (=cos(x)*cos(x)), F1=sin(x) - FSQRT // F0=cos(x), F1=sin(x) - FPATAN // F0=arcsin(sin(x))=x - FMOVDP F0, ret+8(FP) - RET - -// func Acos(x float64) float64 -TEXT ·Acos(SB),NOSPLIT,$0 - FMOVD x+0(FP), F0 // F0=cos(x) - FMOVD F0, F1 // F0=cos(x), F1=cos(x) - FMULD F0, F0 // F0=cos(x)*cos(x), F1=cos(x) - FLD1 // F0=1, F1=cos(x)*cos(x), F2=cos(x) - FSUBRDP F0, F1 // F0=1-cos(x)*cos(x) (=sin(x)*sin(x)), F1=cos(x) - FSQRT // F0=sin(x), F1=cos(x) - FXCHD F0, F1 // F0=cos(x), F1=sin(x) - FPATAN // F0=arccos(cos(x))=x - FMOVDP F0, ret+8(FP) - RET |