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Diffstat (limited to 'hw/display/vga_regs.h')
-rw-r--r--hw/display/vga_regs.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/hw/display/vga_regs.h b/hw/display/vga_regs.h
index 7fdba34..40e673f 100644
--- a/hw/display/vga_regs.h
+++ b/hw/display/vga_regs.h
@@ -100,7 +100,9 @@
/* VGA CRT controller bit masks */
#define VGA_CR11_LOCK_CR0_CR7 0x80 /* lock writes to CR0 - CR7 */
+#define VGA_CR14_DW 0x40
#define VGA_CR17_H_V_SIGNALS_ENABLED 0x80
+#define VGA_CR17_WORD_BYTE 0x40
/* VGA attribute controller register indices */
#define VGA_ATC_PALETTE0 0x00
@@ -154,6 +156,8 @@
#define VGA_GFX_BIT_MASK 0x08
/* VGA graphics controller bit masks */
+#define VGA_GR05_HOST_ODD_EVEN 0x10
#define VGA_GR06_GRAPHICS_MODE 0x01
+#define VGA_GR06_CHAIN_ODD_EVEN 0x02
#endif /* HW_VGA_REGS_H */