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-rw-r--r--src/math/i386/log1p.s15
1 files changed, 15 insertions, 0 deletions
diff --git a/src/math/i386/log1p.s b/src/math/i386/log1p.s
new file mode 100644
index 00000000..9971e53c
--- /dev/null
+++ b/src/math/i386/log1p.s
@@ -0,0 +1,15 @@
+.global log1p
+.type log1p,@function
+log1p:
+ mov 8(%esp),%eax
+ fldln2
+ and $0x7fffffff,%eax
+ fldl 4(%esp)
+ cmp $0x3fd28f00,%eax
+ ja 1f
+ fyl2xp1
+ ret
+1: fld1
+ faddp
+ fyl2x
+ ret