diff options
Diffstat (limited to 'src/math/i386/scalbn.s')
| -rw-r--r-- | src/math/i386/scalbn.s | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/src/math/i386/scalbn.s b/src/math/i386/scalbn.s index e275d14f..8bf302f2 100644 --- a/src/math/i386/scalbn.s +++ b/src/math/i386/scalbn.s @@ -11,10 +11,23 @@ scalbln: .global scalbn .type scalbn,@function scalbn: - fildl 12(%esp) + mov 12(%esp),%eax + add $0x3ffe,%eax + cmp $0x7ffd,%eax + jb 1f + sub $0x3ffe,%eax + sar $31,%eax + xor $0xfff,%eax + add $0x3ffe,%eax +1: inc %eax fldl 4(%esp) - fscale - fstp %st(1) + mov %eax,12(%esp) + mov $0x80000000,%eax + mov %eax,8(%esp) + xor %eax,%eax + mov %eax,4(%esp) + fldt 4(%esp) + fmulp fstpl 4(%esp) fldl 4(%esp) ret |