20 Oct
2010
20 Oct
'10
8:38 a.m.
From: "Ethan Dicks": Wednesday, October 20, 2010 8:14 AM
On 10/20/10, Vincent Slyngstad <vrs at msn.com>
wrote:
Sure. We've talked about how to do that before, I think. You'd face that
problem
starting from either the 8/I or the 8/L.
From: "Brad Parker": Wednesday, October
20, 2010 4:11 AM
And replace the 7453 and 7482 with something made with less unobtanium? (I still like the idea of a big PCB with lots of
TTL which functions an
8/I. I'd buy one :-)
Hmm. I might choose the 8/L for something like that. Possibly soup
up the memory to 32K, but leave out all the option cruft of the 8/I
backplane. The memory extension hardware to take it over 4K is
obviously
non-trivial in size (especially considering it doesn't fit in an -8/L
CPU enclosure).
Good point. You would definitely need some board area for that.
OTOH, if you have over 32K, there might as well be
provisions for OS/8-compatible mass storage, otherwise it's just a
papertape machine with more than 4K.
True, though an RF08 emulation doesn't take much board space. Or
one could go with an RX08 interface for extra clanking ambiance :-).
Vince