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Diffstat (limited to 'src/math/log10_386.s')
| -rw-r--r-- | src/math/log10_386.s | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/math/log10_386.s b/src/math/log10_386.s new file mode 100644 index 000000000..2897f3c15 --- /dev/null +++ b/src/math/log10_386.s @@ -0,0 +1,21 @@ +// 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 Log10(x float64) float64 +TEXT ·Log10(SB),NOSPLIT,$0 + FLDLG2 // F0=log10(2) + FMOVD x+0(FP), F0 // F0=x, F1=log10(2) + FYL2X // F0=log10(x)=log2(x)*log10(2) + FMOVDP F0, ret+8(FP) + RET + +// func Log2(x float64) float64 +TEXT ·Log2(SB),NOSPLIT,$0 + FLD1 // F0=1 + FMOVD x+0(FP), F0 // F0=x, F1=1 + FYL2X // F0=log2(x) + FMOVDP F0, ret+8(FP) + RET |