[aandrejevic] 67840: [FAST486] No underflows will occur in Fast486FpuAdd when the signs are different, since the exponent won't be reduced.

Author: aandrejevic
Date: Thu May 21 00:51:21 2015
New Revision: 67840

URL: http://svn.reactos.org/svn/reactos?rev=67840&view=rev
Log:
[FAST486]
No underflows will occur in Fast486FpuAdd when the signs are different, since
the exponent won't be reduced.


Modified:
    trunk/reactos/lib/fast486/fpu.c

Modified: trunk/reactos/lib/fast486/fpu.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/lib/fast486/fpu.c?rev=6784…
==============================================================================
--- trunk/reactos/lib/fast486/fpu.c	[iso-8859-1] (original)
+++ trunk/reactos/lib/fast486/fpu.c	[iso-8859-1] Thu May 21 00:51:21 2015
@@ -729,27 +729,8 @@
         if (TempResult.Mantissa >= FirstAdjusted.Mantissa
             && TempResult.Mantissa >= SecondAdjusted.Mantissa)
         {
-            if (TempResult.Exponent == 0)
-            {
-                /* Raise the underflow exception */
-                State->FpuStatus.Ue = TRUE;
-
-                if (State->FpuControl.Um)
-                {
-                    /* Total overflow, return zero */
-                    TempResult.Mantissa = 0ULL;
-                }
-                else
-                {
-                    Fast486FpuException(State);
-                    return FALSE;
-                }
-            }
-            else
-            {
-                /* Reverse the mantissa */
-                TempResult.Mantissa = -(LONGLONG)TempResult.Mantissa;
-            }
+            /* Reverse the mantissa */
+            TempResult.Mantissa = -(LONGLONG)TempResult.Mantissa;
         }
     }