[cc65] Support for the EMMA II system?

Hi!

Just joined the list, as I found CC65 a couple of days ago.

I work as a teacher in a vocation school. We have been using a 
6502 educational board called EMMA II (by L.J.ELECTRONICS) in our 
microcomputers course for many years. The board has the 6502, 
6821, 6522, 1.5 KB RAM, an 8 digit 7-segment display, hex keypad 
for typing in code, etc.
It has a vey simple monitor program in ROM. It's a really nice 
system for learning "down to the metal" assembly programming and 
how computers work.

A couple of years ago a student made an assembly development
environment in BASIC to be run on a PC, that transfered the
compiled program using a cable to EMMA II. A special EPROM was
made for EMMA II to handle code download. Although it's a bit
primitive, it works well.

When the time schedule allows it's always fun to fiddle around with 
these things, trying to find new usage areas. And hopefully make 
the course more interesting for the students.

I've done some simple tests with the CC65 tools and found that the 
assembler and linker would be usable as is. However, it would be
extremely cool to also be able to use the C compiler and parts
of the standard librarys. Maybe someone has done something already 
for EMMA II ? If not, where would I start, making the appropriate
changes in crt0.s and so on. Any hints and help would be 
appreciated.


Thanks!


Mats Byggmastar



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