diff options
Diffstat (limited to 'src/math/i386/atanf.s')
| -rw-r--r-- | src/math/i386/atanf.s | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/math/i386/atanf.s b/src/math/i386/atanf.s index 3cd40233..8caddefa 100644 --- a/src/math/i386/atanf.s +++ b/src/math/i386/atanf.s @@ -2,6 +2,18 @@ .type atanf,@function atanf: flds 4(%esp) + mov 4(%esp),%eax + add %eax,%eax + cmp $0x01000000,%eax + jb 1f fld1 fpatan ret + # subnormal x, return x with underflow +1: fnstsw %ax + and $16,%ax + jnz 2f + fld %st(0) + fmul %st(1) + fstps 4(%esp) +2: ret |