1.global log1p
 2.type log1p,@function
 3log1p:
 4	mov 8(%esp),%eax
 5	fldln2
 6	and $0x7fffffff,%eax
 7	fldl 4(%esp)
 8	cmp $0x3fd28f00,%eax
 9	ja 1f
10	cmp $0x00100000,%eax
11	jb 2f
12	fyl2xp1
13	fstpl 4(%esp)
14	fldl 4(%esp)
15	ret
161:	fld1
17	faddp
18	fyl2x
19	fstpl 4(%esp)
20	fldl 4(%esp)
21	ret
22		# subnormal x, return x with underflow
232:	fsts 4(%esp)
24	fstp %st(1)
25	ret