On Wed, Nov 14, 2018 at 12:35 PM Eric Smith <space...@gmail.com> wrote: >> I looked at the firmware disassemblies. Opcode 10 appears to only >> point to code (vs NOP) on one version of the firmware >> >> https://gitlab.com/NF6X_Retrocomputing/tu58firmware/blob/master/disassembly/23-089e2.asm > > Well, yes, that's my disassembly. So now you know about as much about opcode > 10 as I do. :-)
Right. But I guess what I trying to was was more about me being surprised that it's only in what may be _older_ firmware (based on the assumption, which I _think_ is valid, that Firmware part numbers are ordered by date). I'm not surprised there's an undocumented opcode. I'm surprised to think it's older and was removed. That's not the usual trend. -ethan
