11 Jan
2007
11 Jan
'07
8:27 a.m.
der Mouse wrote:
(Yes, he was joking. The tvi955 is far too
computron-poor to run
anything even vaguely like a Unix variant. A few KB of RAM at most,
and a G65SC802 - a slightly improved 6502 - as CPU...
I don't know, what were the requirements for OS-9 on a 6809 CPU? (That's me
taking "UNIX variant" to mean "Unix-a-like" rather than something
claiming
Unix compatibility). I suppose the question's purely about available memory,
as something can generally be "run" on any speed CPU [1], although it might be
painful :-)
[1] Exceptions being if you're trying to service something which requires lots
of fast interrupt response, I suppose. At some point a system must disappear
up its own backside if it's just trying to do too much :)
only way I can
think of to do it would be to run an emulator for something beefier,
with remote storage accessed via serial line. Never mind "run", never
mind even "walk"; "crawl" would be too fast a word for it.)
I bet you could hack more memory onto it if it hasn't got a reasonable
complement already. Maybe homebrew something onto a I/O port to bank-switch
the memory in 16KB chunks or somesuch. (I'm not sure how systems that do that
typically handle refresh if using DRAM though as presumably it can get quite
messy - and multiple banks done in SRAM will undoubtedly overload the PSU
rather quickly)
It *could* probably done without relying on any kind of 'slave' system anyway...
cheers
Jules