Memory Mapping - HP Vectra VE4 Reference Manual

Memory Mapping

Memory Area
Extended Memory: 1 MB to 4 MB or 8 MB depending on model
Extended memory
Conventional Memory: 0 KB to 1024 KB (1 MB)
384 KB Reserved
Memory Area
640 KB Base
Memory Area
Vectra 4E/xx Technical Reference
Hexadecimal
Memory Range Address Range
1024 KB upward 01000 to 0F0000
960 KB to 1024 KB 0F0000 to 010000
896 KB to 960 KB 0E0000 to 0F0000
800 KB to 896 KB 0C8000 to 0E0000
768 KB to 800 KB 0C0000 to 0C8000
640 KB to 786 KB 0A0000 to 0C0000
0 KB to 640 KB 09F000 to 0A0000
—
—
0500 to 0700
0400 to 04FF
0000 to 03FF
2 Summary of HP System BIOS
Used By
Windows™ applications
64 KB BIOS area
64 KB (available)
96 KB available for
accessory boards
32 KB video BIOS area
128 KB video memory
area
Extended BIOS data
area
User application
program area
MS-DOS© operating
system
MS-DOS temp buffer
BIOS data area
Interrupt vector table
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