[aandrejevic] 59729: [NTVDM] Fix bug with VGA DAC register access.

Author: aandrejevic
Date: Tue Aug 13 19:00:02 2013
New Revision: 59729

URL: http://svn.reactos.org/svn/reactos?rev=59729&view=rev
Log:
[NTVDM]
Fix bug with VGA DAC register access.

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

Modified: branches/ntvdm/subsystems/ntvdm/vga.c
URL: http://svn.reactos.org/svn/reactos/branches/ntvdm/subsystems/ntvdm/vga.c?rev...
==============================================================================
--- branches/ntvdm/subsystems/ntvdm/vga.c	[iso-8859-1] (original)
+++ branches/ntvdm/subsystems/ntvdm/vga.c	[iso-8859-1] Tue Aug 13 19:00:02 2013
@@ -98,7 +98,7 @@
 static BYTE VgaAcIndex = VGA_AC_PAL_0_REG;
 static BOOLEAN VgaAcLatch = FALSE;
 static BYTE VgaAcRegisters[VGA_AC_MAX_REG];
-static BYTE VgaDacIndex = 0;
+static WORD VgaDacIndex = 0;
 static BOOLEAN VgaDacReadWrite = FALSE;
 static BYTE VgaDacRegisters[VGA_PALETTE_SIZE];
 static HPALETTE PaletteHandle = NULL;
@@ -957,7 +957,7 @@

case VGA_DAC_WRITE_INDEX:
         {
-            return VgaDacIndex;
+            return VgaDacIndex / 3;
         }

case VGA_DAC_DATA:
@@ -1066,7 +1066,7 @@
         case VGA_DAC_READ_INDEX:
         {
             VgaDacReadWrite = FALSE;
-            VgaDacIndex = Data % VGA_PALETTE_SIZE;
+            VgaDacIndex = Data * 3;

break;
         }
@@ -1074,7 +1074,7 @@
         case VGA_DAC_WRITE_INDEX:
         {
             VgaDacReadWrite = TRUE;
-            VgaDacIndex = Data % VGA_PALETTE_SIZE;
+            VgaDacIndex = Data * 3;

break;
         }