25 Dec
2010
25 Dec
'10
12:33 p.m.
Tony Duell wrote:
Sure. The MCS8i and DMS800 came before CP/M...
The only reason I said 'CPM-like' is that few people hwere have read the
MCS8i monitor soruces.... Rather more know CPM.
-tony
I beleive the historay can be traced back to the
MCS8i system. This,
AFAIK, never had disks, and never ran CP/M. But it's 8080-based and
amazingly it has a CPM-like IOBYTE at location 3.
It's not that the Intel development systems had a CP/M-link IOBYTE.
It's that CP/M has an Intel MDS-like IOBYTE. Remember that Gary Kildall
wrote software for Intel before writing CP/M, and that CP/M was written
to run on an MDS.