1.global atan2 2.type atan2,@function 3atan2: 4 fldl 4(%esp) 5 fldl 12(%esp) 6 fpatan 7 fstl 4(%esp) 8 mov 8(%esp),%eax 9 add %eax,%eax 10 cmp $0x00200000,%eax 11 jae 1f 12 # subnormal x, return x with underflow 13 fsts 4(%esp) 141: ret 15