Chapter 4 - Programming
FEOOOO-FFFFFF
System BIOS
128K
100000-FEFFFF
DRAM
3072K
OFOOOO-OFFFFF
System BIOS
64K
OEOOOO-OEFFFF
Real Mode Wndow I Extended BIOS I lID
64K
ODOOOO-ODFFFF
Extended BIOS I lID
64K
OC8000-0CFFFF
User Area
32K
OCOOOO-OC7FFF
VGABIOS
32K
OAOOOO-OBFFFF
VGA DRAM
Memory
128K
000000-09FFFF
DRAM
640K
Figure 4-5. 16 Mbyte Memory Map (as seen by the CPU)
4-6
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