[aandrejevic] 70825: [NTVDM] Some programs expect an 8x8 font at F000:FA6E. CORE-10877 #comment Works rather well as of r70825.

Author: aandrejevic
Date: Tue Mar  1 00:44:20 2016
New Revision: 70825

URL: http://svn.reactos.org/svn/reactos?rev=70825&view=rev
Log:
[NTVDM]
Some programs expect an 8x8 font at F000:FA6E.
CORE-10877 #comment Works rather well as of r70825.

Modified:
    trunk/reactos/subsystems/mvdm/ntvdm/bios/vidbios.c
    trunk/reactos/subsystems/mvdm/ntvdm/bios/vidbios.h

Modified: trunk/reactos/subsystems/mvdm/ntvdm/bios/vidbios.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/mvdm/ntvdm/bios/...
==============================================================================
--- trunk/reactos/subsystems/mvdm/ntvdm/bios/vidbios.c	[iso-8859-1] (original)
+++ trunk/reactos/subsystems/mvdm/ntvdm/bios/vidbios.c	[iso-8859-1] Tue Mar  1 00:44:20 2016
@@ -3987,6 +3987,9 @@
     RtlMoveMemory(SEG_OFF_TO_PTR(VIDEO_BIOS_DATA_SEG, FONT_8x14_OFFSET),
                   Font8x14, sizeof(Font8x14));

+    /* Make another copy of the lower half of the 8x8 font at F000:FA6E for compatibility */
+    RtlMoveMemory(SEG_OFF_TO_PTR(BIOS_SEGMENT, FONT_8x8_COMPAT_OFFSET), Font8x8, sizeof(Font8x8) / 2);
+
     VidBios32Initialize();

/* Compute the ROM checksum and store it */

Modified: trunk/reactos/subsystems/mvdm/ntvdm/bios/vidbios.h
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/mvdm/ntvdm/bios/...
==============================================================================
--- trunk/reactos/subsystems/mvdm/ntvdm/bios/vidbios.h	[iso-8859-1] (original)
+++ trunk/reactos/subsystems/mvdm/ntvdm/bios/vidbios.h	[iso-8859-1] Tue Mar  1 00:44:20 2016
@@ -30,6 +30,8 @@
 #define FONT_8x8_HIGH_OFFSET    0x0500
 #define FONT_8x16_OFFSET        0x0900
 #define FONT_8x14_OFFSET        0x1900
+
+#define FONT_8x8_COMPAT_OFFSET  0xFA6E

#define VIDEO_STATE_INFO_OFFSET 0x3000 // == 0x1900 + (sizeof(Font8x14) == 0x0E00) + 0x0900 for padding