[hbelusca] 65059: [FAST486]: We should invalidate the prefetch buffer *after* having fetched the BOP byte (but before calling its handler), not before fetching the byte :)

Author: hbelusca
Date: Tue Oct 28 00:19:48 2014
New Revision: 65059

URL: http://svn.reactos.org/svn/reactos?rev=65059&view=rev
Log:
[FAST486]: We should invalidate the prefetch buffer *after* having fetched the BOP byte
(but before calling its handler), not before fetching the byte :)

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

Modified: trunk/reactos/lib/fast486/opcodes.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/lib/fast486/opcodes.c?rev=…
==============================================================================
--- trunk/reactos/lib/fast486/opcodes.c	[iso-8859-1] (original)
+++ trunk/reactos/lib/fast486/opcodes.c	[iso-8859-1] Tue Oct 28 00:19:48 2014
@@ -4240,17 +4240,17 @@
         {
             UCHAR BopCode;
 
-#ifndef FAST486_NO_PREFETCH
-            /* Invalidate the prefetch since BOP handlers can alter the memory */
-            State->PrefetchValid = FALSE;
-#endif
-
             /* Fetch the BOP code */
             if (!Fast486FetchByte(State, &BopCode))
             {
                 /* Exception occurred */
                 return;
             }
+
+#ifndef FAST486_NO_PREFETCH
+            /* Invalidate the prefetch since BOP handlers can alter the memory */
+            State->PrefetchValid = FALSE;
+#endif
 
             /* Call the BOP handler */
             State->BopCallback(State, BopCode);