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| author | Rich Felker <dalias@aerifal.cx> | 2011-02-12 00:22:29 -0500 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2011-02-12 00:22:29 -0500 |
| commit | 0b44a0315b47dd8eced9f3b7f31580cf14bbfc01 (patch) | |
| tree | 6eaef0d8a720fa3da580de87b647fff796fe80b3 /src/math/i386/e_exp.s | |
| download | musl-0b44a0315b47dd8eced9f3b7f31580cf14bbfc01.tar.gz musl-0b44a0315b47dd8eced9f3b7f31580cf14bbfc01.tar.bz2 musl-0b44a0315b47dd8eced9f3b7f31580cf14bbfc01.tar.xz musl-0b44a0315b47dd8eced9f3b7f31580cf14bbfc01.zip | |
initial check-in, version 0.5.0v0.5.0
Diffstat (limited to 'src/math/i386/e_exp.s')
| -rw-r--r-- | src/math/i386/e_exp.s | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/src/math/i386/e_exp.s b/src/math/i386/e_exp.s new file mode 100644 index 00000000..d6c54a30 --- /dev/null +++ b/src/math/i386/e_exp.s @@ -0,0 +1,36 @@ +.global expf +expf: + mov 4(%esp),%eax + flds 4(%esp) + shr $23,%eax + inc %al + jz 1f + jmp 0f + +.global exp +exp: + mov 8(%esp),%eax + fldl 4(%esp) + shl %eax + cmp $0xffe00000,%eax + jae 1f + +0: fldl2e + fmulp + fst %st(1) + frndint + fst %st(2) + fsubrp + f2xm1 + fld1 + faddp + fscale + fstp %st(1) + ret + +1: fsts 4(%esp) + cmpl $0xff800000,4(%esp) + jnz 1f + fstp %st(0) + fldz +1: ret |