29 Jan
2008
29 Jan
'08
1:33 p.m.
scheefj at netscape.net writes:
In the early-mid 80's a program was "well
behaved" if it did it's I/O thru
DOS calls. Those programs would run on just about anything.
Were there similar problems in the CP/M world? That is, was it commonplace
for there to be CP/M programs that bypassed CP/M BDOS calls and wrote
directly to a specific machine's hardware? Seems like CP/M developers were
more disciplined in this fashion, but maybe it's just because in the CP/M
arena there were so many different pieces of hardware it was the only way to
do it? (Whereas with IBM, the PC was seen as more of a reference standard,
even if it wasn't really that way in the beginning?)
I'd be interested to hear opinions from people who were there at the time,
since it was a little before my time.
Josh