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115 Appendix C
C.4 1st MB memory map
Table C.4: 1st MB memory map
Addr. range (Hex) Device
F000h - FFFFh System ROM
E000h - EFFFh Reserved for BIOS boot
CC00h - DFFFh available
C000h - CB00h VGA BIOS
B800h - BFFFh CGA/EGA/VGA text
B000h - B7FFh Reserved for graphic mode usage
A000h - AFFFh EGA/VGA graphics
0000h - 9FFFh Base memory
*default setting