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| author | Mystery Man <unknown@mandriva.org> | 2003-05-06 13:11:49 +0000 |
|---|---|---|
| committer | Mystery Man <unknown@mandriva.org> | 2003-05-06 13:11:49 +0000 |
| commit | 3f5d21d90abbd16f16ab69aec1e1a1853a93fd18 (patch) | |
| tree | 3d9f5a32303a8d97b4b457949e64bb42b4850ea9 /mdk-stage1/dietlibc/i386/sinh.S | |
| parent | 327bd24f8e4291bd1882de1990dd7339f781a9cb (diff) | |
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This commit was manufactured by cvs2svn to create tag 'R9_0-AMD64'.R9_0-AMD64
Diffstat (limited to 'mdk-stage1/dietlibc/i386/sinh.S')
| -rw-r--r-- | mdk-stage1/dietlibc/i386/sinh.S | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/mdk-stage1/dietlibc/i386/sinh.S b/mdk-stage1/dietlibc/i386/sinh.S new file mode 100644 index 000000000..98f7ee752 --- /dev/null +++ b/mdk-stage1/dietlibc/i386/sinh.S @@ -0,0 +1,29 @@ + +.text +.type sinh,@function +.global sinh + +sinh: # note: exp(x) = 2^(x*log2(e)) + fldl2e + fmull 4(%esp) # x*log2(e) + fld %st(0) # x*log2(e) x*log2(e) + frndint # int(x*log2(e)) x*log2(e) + fxch # x*log2(e) int(x*log2(e)) + fsub %st(1),%st(0) # frac(x*log2(e)) int(x*log2(e)) + f2xm1 # 2^(fract(x*log2(e)))-1 int(x*log2(e)) + fld1 # 1 2^(fract(x*log2(e)))-1 int(x*log2(e)) + faddp %st(0),%st(1) # 2^(fract(x*log2(e))) int(x*log2(e)) + fscale # 2^(x*log2(e)) int(x*log2(e)) + fstp %st(1) # 2^(x*log2(e)) + +# now we have y = exp(x), but sinh(x) = (y - 1/y) * 0.5 + + fld1 + fdiv %st(1),%st(0) + fsubrp + fmuls __half + ret + +.Lende: + +.size sinh,.ende-sinh |