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authorRich Felker <dalias@aerifal.cx>2012-03-19 10:59:41 -0400
committerRich Felker <dalias@aerifal.cx>2012-03-19 10:59:41 -0400
commitb04b588791e6afbe7e91684546b446b136fd518c (patch)
treee239f52843604df37873e7bcd3cf814fb80e1c07 /src/math/i386/log1pf.s
parent9d82a15e152f72ca35a11a7bb359edb4d9232999 (diff)
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asm for log1p
Diffstat (limited to 'src/math/i386/log1pf.s')
-rw-r--r--src/math/i386/log1pf.s15
1 files changed, 15 insertions, 0 deletions
diff --git a/src/math/i386/log1pf.s b/src/math/i386/log1pf.s
new file mode 100644
index 00000000..2680a8a6
--- /dev/null
+++ b/src/math/i386/log1pf.s
@@ -0,0 +1,15 @@
+.global log1pf
+.type log1pf,@function
+log1pf:
+	mov 4(%esp),%eax
+	fldln2
+	and $0x7fffffff,%eax
+	flds 4(%esp)
+	cmp $0x3e940000,%eax
+	ja 1f
+	fyl2xp1
+	ret
+1:	fld1
+	faddp
+	fyl2x
+	ret