diff options
Diffstat (limited to 'winsup/mingw/mingwex/math/log2.S')
| -rw-r--r-- | winsup/mingw/mingwex/math/log2.S | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/winsup/mingw/mingwex/math/log2.S b/winsup/mingw/mingwex/math/log2.S index 08f008310..68e7fc7f5 100644 --- a/winsup/mingw/mingwex/math/log2.S +++ b/winsup/mingw/mingwex/math/log2.S @@ -24,28 +24,28 @@ limit: .double 0.29 .def _log2; .scl 2; .type 32; .endef _log2: fldl one - fldl 4(%esp) // x : 1 + fldl 4(%esp) /* x : 1 */ fxam fnstsw - fld %st // x : x : 1 + fld %st /* x : x : 1 */ sahf - jc 3f // in case x is NaN or ħInf -4: fsub %st(2), %st // x-1 : x : 1 - fld %st // x-1 : x-1 : x : 1 - fabs // |x-1| : x-1 : x : 1 - fcompl limit // x-1 : x : 1 - fnstsw // x-1 : x : 1 + jc 3f /* in case x is NaN or ħInf */ +4: fsub %st(2), %st /* x-1 : x : 1 */ + fld %st /* x-1 : x-1 : x : 1 */ + fabs /* |x-1| : x-1 : x : 1 */ + fcompl limit /* x-1 : x : 1 */ + fnstsw /* x-1 : x : 1 */ andb $0x45, %ah jz 2f - fstp %st(1) // x-1 : 1 - fyl2xp1 // log(x) + fstp %st(1) /* x-1 : 1 */ + fyl2xp1 /* log(x) */ ret -2: fstp %st(0) // x : 1 - fyl2x // log(x) +2: fstp %st(0) /* x : 1 */ + fyl2x /* log(x) */ ret -3: jp 4b // in case x is ħInf +3: jp 4b /* in case x is ħInf */ fstp %st(1) fstp %st(1) ret |