diff options
Diffstat (limited to 'src/math/i386/modff.s')
| -rw-r--r-- | src/math/i386/modff.s | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/math/i386/modff.s b/src/math/i386/modff.s new file mode 100644 index 00000000..35a08ca9 --- /dev/null +++ b/src/math/i386/modff.s @@ -0,0 +1,28 @@ +.global modff +.type modff,@function +modff: + mov 8(%esp),%ecx + flds 4(%esp) + fxam + fnstsw %ax + sahf + jnp 1f + jc 2f +1: fld1 + fld %st(1) +1: fprem + fnstsw %ax + sahf + jp 1b + fstp %st(1) + fsubr %st(0),%st(1) + fxch %st(1) + fstps (%ecx) + ret + +2: fstps (%ecx) + mov (%ecx),%eax + and $0x80000000,%eax + mov %eax,4(%esp) + flds 4(%esp) + ret |