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-rw-r--r--libFDK/src/fixpoint_math.cpp10
1 files changed, 10 insertions, 0 deletions
diff --git a/libFDK/src/fixpoint_math.cpp b/libFDK/src/fixpoint_math.cpp
index 000820c..7d5fbb5 100644
--- a/libFDK/src/fixpoint_math.cpp
+++ b/libFDK/src/fixpoint_math.cpp
@@ -443,6 +443,15 @@ FIXP_DBL sqrtFixp(FIXP_DBL op)
*****************************************************************************/
+#if defined(__x86__)
+FIXP_DBL schur_div(FIXP_DBL num, FIXP_DBL denum, INT count)
+{
+ INT64 tmp=(INT64)num<<31;
+ LONG div=(tmp/denum)>>(DFRACT_BITS-count);
+ return (FIXP_DBL)(div) << (DFRACT_BITS-count);
+}
+
+#else
FIXP_DBL schur_div(FIXP_DBL num, FIXP_DBL denum, INT count)
{
@@ -469,6 +478,7 @@ FIXP_DBL schur_div(FIXP_DBL num, FIXP_DBL denum, INT count)
return (FIXP_DBL)(div << (DFRACT_BITS - count));
}
+#endif
#endif /* !defined(FUNCTION_schur_div) */