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-rw-r--r--src/arch/x86/include/bios.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/arch/x86/include/bios.h b/src/arch/x86/include/bios.h
index 3ba8264ec..6391a4958 100644
--- a/src/arch/x86/include/bios.h
+++ b/src/arch/x86/include/bios.h
@@ -7,6 +7,8 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#define BDA_EBDA 0x000e
#define BDA_EQUIPMENT_WORD 0x0010
#define BDA_KB0 0x0017
+#define BDA_KB0_RSHIFT 0x01
+#define BDA_KB0_LSHIFT 0x02
#define BDA_KB0_CTRL 0x04
#define BDA_KB0_CAPSLOCK 0x040
#define BDA_FBMS 0x0013
@@ -16,5 +18,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#define BDA_REBOOT_WARM 0x1234
#define BDA_NUM_DRIVES 0x0075
#define BDA_CHAR_HEIGHT 0x0085
+#define BDA_KB2 0x0096
+#define BDA_KB2_RALT 0x08
#endif /* BIOS_H */