System Memory Map - Zenith Z-100 Reference Manual
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- User manual (150 pages) ,
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Page 6.10
System Memory
System Memory Map
Table 6.2 shows the location of user memory in the system memory scheme.
Table 6.2. System Memory Map
TYPE OF MEMORY
1st RAM Card
2nd RAM Card
Reserved
Monochrome Video
Reserved
Color Graphics
Reserved
Reserved bit-mapped
graphics video interface
MFM-150 Monitor
Scratchpad RAM
Winchester drive
buffer
System ROM
Memory addresses can range from 0 to 9FFFFH (0 to 655359 decimal), although
your system may not contain that much memory. For instance, if you have a
basic system, the addressable range for your system is 0 to IFFFFH (0 to 131071
decimal) or 128K.
If you have one complete memory card filled, the range is 0 to 4FFFF. To have
the complete range of memory, you must either use two full memory cards, or
install 256K chips on a single card.
HEXADECIMAL
ADDRESS
00000-4FFFF
50000-9FFFF
A0000-AFFFF
B0000-B3FFF
B4000-B7FFF
B8000-BBFFF
BC000-BFFFF
C0000-EFFFF
F0000-F3FFF
F4000-F7FFF
F8000-FFFFF
DECIMAL ADDRESS
0000000-0327679
0327680-0655359
0655360-0720895
0720896-0737279
0737280-0753663
0753664-0770047
0770048-0786431
0786432-0983039
0983040-0999423
0999424-1015807
1015808-1048575
0
0
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