Tony wrote:
I'd be suprised if you could fit a reasonable
BASIC interpretter into
2K or even 4K of 6502 code....
Apple 1 BASIC was under 4K. Apple ][ Integer BASIC is a slightly improved
version and is under 5K.
Neither has floating point, so perhaps they don't meet your definition
of "reasonable".
There is/was an 8K*8 mask-programmed ROM in a 24 pin
DIL package (one
of the versions of the 2364 IIRC), and I wonder if that's what you
have. I can find pinouts of that ROM in the Rockwell databook if you
need them.
There's also an 8K*8 EPROM in a 24 pin DIP, the Motorola 68764. Also
the 68766, I don't recall what the difference was. They never were as
cheap as the 2764, and now they've gotten somewhat hard to find.