diff options
Diffstat (limited to 'src/math/i386/atan.s')
| -rw-r--r-- | src/math/i386/atan.s | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/math/i386/atan.s b/src/math/i386/atan.s index 7e28b395..d73137b2 100644 --- a/src/math/i386/atan.s +++ b/src/math/i386/atan.s @@ -2,6 +2,16 @@ .type atan,@function atan: fldl 4(%esp) + mov 8(%esp),%eax + add %eax,%eax + cmp $0x00200000,%eax + jb 1f fld1 fpatan ret + # subnormal x, return x with underflow +1: fnstsw %ax + and $16,%ax + jnz 2f + fsts 4(%esp) +2: ret |