Howard M. Harte
d0c009504b
AltairZ80: Add support for the AB Digital B810.
...
The AB Digital Design B810 RAM card is a 256K Dynamic RAM card
with onboard refresh logic. AltairZ80 support emulates four of
these cards for a total of 16 banks.
As used for the OASIS operating system, the B810 is configured
with common memory at the low addresses (0000h-3FFFh) with 16
banks of 48K from 4000h-FFFFh.
In order to have the common memory appear from 0000-3FFFh, set
the COMMONLOW register to 1:
D COMMONLOW 1
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ALPHA, ALTAIR, AltairZ80, I7094, NOVA, PDP1, PDP10, PDP11, PDP18B, PDP8, SAGE, sigma, swtp6800, TX-0, VAX: Change tabs to spaces which had crept in over time
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ALPHA, ALTAIR, AltairZ80, I7094, NOVA, PDP1, PDP10, PDP11, PDP18B, PDP8, SAGE, sigma, swtp6800, TX-0, VAX: Change tabs to spaces which had crept in over time
2015-03-30 10:24:24 -07:00
ALPHA, ALTAIR, AltairZ80, I7094, NOVA, PDP1, PDP10, PDP11, PDP18B, PDP8, SAGE, sigma, swtp6800, TX-0, VAX: Change tabs to spaces which had crept in over time
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