1.global atan2f
 2.type atan2f,@function
 3atan2f:
 4	flds 4(%esp)
 5	flds 8(%esp)
 6	fpatan
 7	fstps 4(%esp)
 8	flds 4(%esp)
 9	mov 4(%esp),%eax
10	add %eax,%eax
11	cmp $0x01000000,%eax
12	jae 1f
13		# subnormal x, return x with underflow
14	fld %st(0)
15	fmul %st(1)
16	fstps 4(%esp)
171:	ret