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B.17 1st MB Memory Map
Table
Addr. range (Hex) | Device |
F000h - FFFFh | System ROM |
C800h - EFFFh | Unused |
|
|
C000h - C7FFh | VGA BIOS |
|
|
B800h - BFFFh | CGA/EGA/VGA text |
|
|
B000h - B7FFh | Unused |
A000h - AFFFh | EGA/VGA graphics |
|
|
0000h - 9FFFh | Base memory |
|
|
Appendix B Pin Assignments | 57 |