4 Nov
2005
4 Nov
'05
12:33 a.m.
I've posted a web page <http://www.AK6DN.com/PDP-11/M9312/> that has
M9312 PROM images in Intel HEX format as well as commented source and
assembly listings of all the well-known devices, both boot and console.
Two 'new' images are also included, a revised version of the 'DD' TU58
boot device that allows for a non-standard CSR assignment (the original
DEC PROM is very broken in this regard) and a new 'ZZ' device boot PROM
that runs the M9312 CPU and memory diagnostics continuously (useful for
basic CPU/MEMORY check with no other peripherals).
A pointer to the tool set is also provided.
I'm still looking for *any* form of image for the TMSCP boot 23-E39A9;
if anyone has one of these and can forward the bits (or a real device; I
will return it!) I can process it, and we'll have a virtually complete
set of all the major devices.
Don North
ak6dn _at_ mindspring _dot_ com
Jay West wrote:
I found one of the rom images I put up was a bad prom.
Another one
read consistently but didn't match two other sources. The images have
been replaced. Affected images : 752A9, 248F1, 616F1. I replaced them
after getting multiple other images and comparing, so I'm confident
the ones up now are all correct.
I'd like to post source listings for the boot programs. Anyone got a
program to re-arrange the bits correctly, then disassemble?
Jay