wrote:
> Task #2: All of us should be on the lookout for any 1401 programs and
> utilities, especially ones that we can use as demos. In particular, we
> need Autocoder or SPS assemblers that run on the 1401 if we want to
> write our own demos or conduct programming classes.
I have a few. I have the Autocoder that Dick Weaver sent me and two core-
dump routines. I've disassembled both of them. I have a listing for a
core-to-punch routine, but I haven't transcribed it or disassembled it.
I have two-tape autocoder but never got it to work. I suspect the "deck"
is an install deck, and that one needs to remove the bootstrap loader cards
from between the phases, but I haven't had time to fool with it.
I have SPS that I've never done anything with. IIRC, I got two-tape
Autocoder and SPS from Paul Pierce.
I have the source code for Autocoder, which I keyed in from the CE manual
and assembled with my Autocoder. Except for slightly different strategies
to assign set-word-mark instructions arising from DA's to individual load
cards, the deck I produced is the same as the one I got from Dick, so I
think the source is OK.
> Task #3: Evaluate 1401 simulators and emulators. Dan McInnis has
> already started with one. Each evaluator should e-mail a short summary
> of what was good or bad. This will be useful information to give out to
> students of our classes.
I've used simh_v3.2 for several things, but Autocoder doesn't work in it.
I suspect there's something wrong with load-mode tape input, but I haven't
been able to repair it. It has facilities for breakpoints and dumping,
and to configure the simulator for many different machine configurations.
I just added a trace, and Bob Supnik just added a history buffer. It doesn't
do column binary read or punch, or move-and-binary-[de]code. (Does the
CHM machine have column binary?) Other than not running Autocoder, it
appears to be accurate.
I have the simulator that Newcomer and Jaeger wrote, but it's for Windoze,
which I don't have, so I never compiled it or ran it.
I wrote an Autocoder that doesn't do macros (other than CHAIN) or IOCS.
It's all in Fortran 90. I don't have a Windoze Fortran compiler, but I'm
confident it's portable. Does anybody want the source, or a Linux executable
to play with?