S-bug and DELABS?

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.