26 Jun
2007
26 Jun
'07
1:47 p.m.
On 6/26/07, Dave McGuire <mcguire at neurotica.com> wrote:
My most
used classic machine at the moment is a PDP-8/m; I've carved out a
permanent place for it on my desk. It contains an RX8E which is
connected to a arallel port adapter based on Chuck Dickman's design,
which is in turn connected to a small x86 SBC running Linux to give
the 8/m a disk subsystem.
Interesting way to do it. How "based on" is it? I know of Chuck's
parallel port adapter, but I'm curious how you've tweaked it.
Is the SBC tucked into the /m or is it external? Does the SBC host
your disk images locally, or over a network?
Given that an RX8E is a PIO device, it makes me think that it wouldn't
be that hard to come up with an OS/8 handler to treat the 12-bit-input
and output ports on a DKC8AA as a disk interface to an external,
modern machine. It doesn't help -8/e/f/m owners much, but the DKC8AA
was a standard peripheral on the -8/a, and normally, unless one is
using the output port as a printer port, unused.
Much to think about there...
-ethan