15 Mar
2006
15 Mar
'06
6:56 p.m.
Chuck Guzis wrote:
I don't know that it'll run on anything much
faster than a 386.
Confirmed; all of my option boards fail on any machine faster than a
386-40. Through some debugging, I've found the reason is two-fold, both
timing-related:
- Any ISA bus speed that differs significantly (ie. faster) from the
norm causes the board to ignore input
- The software uses loops for timing in places, so any CPU faster than a
386-40 will overflow and confuse the software.
--
Jim Leonard (trixter at oldskool.org) http://www.oldskool.org/
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