[aandrejevic] 60841: [FAST486] The RCL, RCR, ROL and ROR instructions do not update SF, ZF or PF.

Author: aandrejevic
Date: Sun Nov  3 01:05:40 2013
New Revision: 60841

URL: http://svn.reactos.org/svn/reactos?rev=60841&view=rev
Log:
[FAST486]
The RCL, RCR, ROL and ROR instructions do not update SF, ZF or PF.


Modified:
    branches/ntvdm/lib/fast486/opgroups.c

Modified: branches/ntvdm/lib/fast486/opgroups.c
URL:
http://svn.reactos.org/svn/reactos/branches/ntvdm/lib/fast486/opgroups.c?re…
==============================================================================
--- branches/ntvdm/lib/fast486/opgroups.c	[iso-8859-1] (original)
+++ branches/ntvdm/lib/fast486/opgroups.c	[iso-8859-1] Sun Nov  3 01:05:40 2013
@@ -278,10 +278,13 @@
         }
     }
 
-    /* Update ZF, SF and PF */
-    State->Flags.Zf = (Result == 0) ? TRUE : FALSE;
-    State->Flags.Sf = (Result & HighestBit) ? TRUE : FALSE;
-    State->Flags.Pf = Fast486CalculateParity(Result);
+    if (Operation >= 4)
+    {
+        /* Update ZF, SF and PF */
+        State->Flags.Zf = (Result == 0) ? TRUE : FALSE;
+        State->Flags.Sf = (Result & HighestBit) ? TRUE : FALSE;
+        State->Flags.Pf = Fast486CalculateParity(Result);
+    }
 
     /* Return the result */
     return Result;