Filter
Top Products
Appendix B System Assignments 99
B.4 1st MB memory map
Table B-4: 1st MB memory map
Addr. range (Hex) Device
F000h - FFFFh System ROM
D800h - EFFFh Unused
D000 - D400H Available
C800h - D7FFh Ethernet ROM*
C000h - C7FFh 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