[aandrejevic] 61151: [NTVDM] Fix the PIT square wave generator.

Author: aandrejevic
Date: Sat Nov 30 03:59:26 2013
New Revision: 61151

URL: http://svn.reactos.org/svn/reactos?rev=61151&view=rev
Log:
[NTVDM]
Fix the PIT square wave generator.


Modified:
    branches/ntvdm/subsystems/ntvdm/timer.c

Modified: branches/ntvdm/subsystems/ntvdm/timer.c
URL:
http://svn.reactos.org/svn/reactos/branches/ntvdm/subsystems/ntvdm/timer.c?…
==============================================================================
--- branches/ntvdm/subsystems/ntvdm/timer.c	[iso-8859-1] (original)
+++ branches/ntvdm/subsystems/ntvdm/timer.c	[iso-8859-1] Sat Nov 30 03:59:26 2013
@@ -277,11 +277,11 @@
                     }
                     else
                     {
+                        /* Decrease the value */
+                        PitChannels[i].CurrentValue -= Count * 2;
+
                         /* Clear the count */
                         Count = 0;
-
-                        /* Decrease the value */
-                        PitChannels[i].CurrentValue -= Count * 2;
 
                         /* Did it fall to zero? */
                         if (PitChannels[i].CurrentValue == 0)
@@ -304,7 +304,9 @@
                 }
 
                 /* Was there any rising edge on channel 0 ? */
-                if ((PitChannels[i].OutputFlipFlop || ReloadCount) && (i == 0))
+                if (((PitChannels[i].OutputFlipFlop && (ReloadCount == 1))
+                    || (ReloadCount > 1))
+                    && (i == 0))
                 {
                     /* Yes, IRQ 0 */
                     PicInterruptRequest(0);