14 Nov
2018
14 Nov
'18
9:33 a.m.
On Wed, Nov 14, 2018 at 8:53 AM Ethan Dicks via cctalk <
cctalk at classiccmp.org> wrote:
On Sat, Nov 24, 2012 at 4:08 AM Eric Smith <eric at
brouhaha.com> wrote:
Well, yes, that's my disassembly. So now you know about as much about
opcode 10 as I do. :-)
I spent some time reverse-engineering the
firmware. There is only one
undocumented opcode, decimal 10, and I haven't yet figured out what it
does, but it definitely doesn't format a tape.
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…