Hi,
I have zero experience with z80,lots of experience in 6502 instead
its built from the first intel 8bit and do you think it should be possible to just use a macro assembler to assemble mov's as LD's and equate mostly used registers as equates?I know its possible reprogram keywords
It should be possible to do that, but it would be a lot of work.
Even more work to do it well. Jochen, Hutch, and others that write
fancy macros should be able to comment more on how feasible
it could be.
A better idea would be to use an existing cross assembler.
Maybe search the old MS-DOS software repositories (perhaps
using archive.org).
The best, if unlikely, idea would be to search TI's site for a
development kit or tool for your specific device. (Good luck!)
Maybe there is a forum or newsgroup dedicated to your
calculator?
Regards,
Steve