| .global asin | |
| .type asin,@function | |
| asin: | |
| fldl 4(%esp) | |
| mov 8(%esp),%eax | |
| add %eax,%eax | |
| cmp $0x00200000,%eax | |
| jb 1f | |
| fld %st(0) | |
| fld1 | |
| fsub %st(0),%st(1) | |
| fadd %st(2) | |
| fmulp | |
| fsqrt | |
| fpatan | |
| fstpl 4(%esp) | |
| fldl 4(%esp) | |
| ret | |
| # subnormal x, return x with underflow | |
| 1: fsts 4(%esp) | |
| ret |