S-bug and DELABS?

From: Bill Yakowenko <yakowenk_at_cs.unc.edu>
Date: Tue Jan 6 20:07:28 1998

Anybody got manuals or hints for the S-BUG and DELABS monitor ROMs?
I scored a SwTPC 69/A today that has both of these, but I only
sorta remember S-BUG from way-back-when, and have never even heard
of DELABS.

To jiggle your memories, here are some of the S-BUG commands that
I remember/figured-out today:

        ^A - set accumulator A
        ^B - " " B
         etc. for other registers
        G - go to address in PC
        R - show registers
        S - show stack
        D - boot from disk (?)
        E - examine memory
        P - punch (motorola S19 format memory dump)

As for the DELABS ROM, it seems to be involved with the EPROM burner.
I suspect it can read & write EPROMs, and maybe up/download binaries
over one of the serial ports. But I've only figured out a few of its
commands:

        D - memory hex dump
        F - fill memory

I suppose I'll end up disassembling them both eventually, but hints
could make the job much easier, and maybe unnecessary.

        Thanks!
        Bill.
Received on Tue Jan 06 1998 - 20:07:28 GMT