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path: root/src/math/i386/scalbnf.s
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Diffstat (limited to 'src/math/i386/scalbnf.s')
-rw-r--r--src/math/i386/scalbnf.s18
1 files changed, 15 insertions, 3 deletions
diff --git a/src/math/i386/scalbnf.s b/src/math/i386/scalbnf.s
index 40232b6a..9cb9ef5f 100644
--- a/src/math/i386/scalbnf.s
+++ b/src/math/i386/scalbnf.s
@@ -11,10 +11,22 @@ scalblnf:
.global scalbnf
.type scalbnf,@function
scalbnf:
- fildl 8(%esp)
+ mov 8(%esp),%eax
+ add $0x3fe,%eax
+ cmp $0x7fd,%eax
+ jb 1f
+ sub $0x3fe,%eax
+ sar $31,%eax
+ xor $0x1ff,%eax
+ add $0x3fe,%eax
+1: inc %eax
+ shl $20,%eax
flds 4(%esp)
- fscale
- fstp %st(1)
+ mov %eax,8(%esp)
+ xor %eax,%eax
+ mov %eax,4(%esp)
+ fldl 4(%esp)
+ fmulp
fstps 4(%esp)
flds 4(%esp)
ret