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Re: second processor on a II:How?
- Subject: Re: second processor on a II:How?
- From: dpscholn@mtu.edu (Dan P. Scholnik)
- Date: 6 Oct 1994 21:50:56 -0400
- Newsgroups: comp.sys.apple2
- Organization: Michigan Technological University
- References: <35vs0t$81m@maxwell5.ee> <36kdu1$d1c@cleese.apana.org.au> <36vhdi$ah4@maxwell4.ee> <3709c1$3ei@gap.cco.caltech.edu>
Todd P. Whitesel (toddpw@bradbert.ugcs.caltech.edu) wrote:
:
: Actually you can't -- exceeding the 6502 refresh time loses ALL registers,
: including the PC itself. When you let the 6502 come up for air, it will
: either reset or lock up.
Ahh, good point. That's what I needed to know. I think I'll just let
them both run and they can communicate through the slot. Or I'll just make
the 6809 a separate unit.
Also, I guess I could bring the 6502 up again by reseting it, and set
the reset vector myself..... Any reason that wouldn't work?
Dan