[sdcc-devel] 8080/8085 support (again)

[Neil J. <ne...@ie...>]

Hi all,

Long time user, first time poster.

I've been using SDCC for a few projects now (porting a small RTOS to
multiple CPUs), and one device that evaded me was the 8085 (I have a soft
spot for it... reasons....).
So as a little side project I decided to see what Claude could do, and the
result is encouraging. I took the top of the SVN tree and overlaid a git
repo and branched off a feature branch - very much work in progress.

https://github.com/nejohnson/sdcc-8085/tree/feat/i8085

Along the way we fixed the 3915 bug.

The feat/i8085 branch should be a full 8080/8085 toolchain using both plain
and undocumented instruction sets (behind compiler flags). It passes the
full regression suite in both modes.

As well as the compiler we had to fix issues in the simulator and assembler.

So far none of this has been tested on a working 8085 computer. That's the
next phase.

Cheers
Neil