Appendix D System Assignments 99
D.4 1st MB memory map
Table D-4: 1st MB memory map
Addr. range (Hex) Device
F000h - FFFFh System ROM
CB00h - EFFFh Unused
C000h - CAFFh Expansion ROM
B800h - BFFFh CGA/EGA/VGA text
B000h - B7FFh Unused
A000h - AFFFh EGA/VGA graphics
0000h - 9FFFh Base memory
