WTT: HP 85 Assembler ROM 00085-15007

[Michael Fehlhammer]

I use Andre Koppel's SYSEXT ROM, I think it features even more useful commands, and I like its comprehensive manual. But it might be a good idea to have both extended ROMs plugged in.
Concerning your custom version, I can't see a reason why Bill shouldn't build it; he just would have to change a few ROM codes, certainly an easy task.
Please let us know about the outcome of your inquiry.