[aandrejevic] 67844: [FAST486] Fix comparing NaNs in Fast486FpuCompare.

Author: aandrejevic
Date: Fri May 22 03:40:44 2015
New Revision: 67844

URL: http://svn.reactos.org/svn/reactos?rev=67844&view=rev
Log:
[FAST486]
Fix comparing NaNs in Fast486FpuCompare.

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=67844...
==============================================================================
--- trunk/reactos/lib/fast486/fpu.c	[iso-8859-1] (original)
+++ trunk/reactos/lib/fast486/fpu.c	[iso-8859-1] Fri May 22 03:40:44 2015
@@ -767,13 +767,17 @@
 {
     if (FPU_IS_NAN(FirstOperand) || FPU_IS_NAN(SecondOperand))
     {
-        if (FPU_IS_POS_INF(FirstOperand) && FPU_IS_NEG_INF(SecondOperand))
+        if ((FPU_IS_POS_INF(FirstOperand)
+            && (!FPU_IS_NAN(SecondOperand) || FPU_IS_NEG_INF(SecondOperand)))
+            || (!FPU_IS_NAN(FirstOperand) && FPU_IS_NEG_INF(SecondOperand)))
         {
             State->FpuStatus.Code0 = FALSE;
             State->FpuStatus.Code2 = FALSE;
             State->FpuStatus.Code3 = FALSE;
         }
-        else if (FPU_IS_NEG_INF(FirstOperand) && FPU_IS_POS_INF(SecondOperand))
+        else if ((FPU_IS_POS_INF(SecondOperand)
+                 && (!FPU_IS_NAN(FirstOperand) || FPU_IS_NEG_INF(FirstOperand)))
+                 || (!FPU_IS_NAN(SecondOperand) && FPU_IS_NEG_INF(FirstOperand)))
         {
             State->FpuStatus.Code0 = TRUE;
             State->FpuStatus.Code2 = FALSE;