Specifications 6–8
System memory map specifications
Size Memory address System function
640 KB 00000000-0009FFFF Base memory
128 KB 000A0000-000BFFFF Video memory
64 KB 000C0000-000CFFFF Video BIOS
64 KB 000E8000-000FFFFF System BIOS
00100000- XFFFFFFF Extended memory (based on memory
installed)
(X+1)0000000-FEDFFFFF PCI bus
FED00000-FED003FF High precision event timer
FEE01000-FFFFFFFF PCI bus
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