You have an Imp48???? First if you have a manual I'd appreciate a copy, I've been looking for 28 years for one! Yes, I have one too, I know the general circuit for mine by reverse engineering it and I do use it for playing. As to languages for 8048, IMSAI never did. The concept of a higher level language for a board with 1K of program space is only a thing you hear lately. One reason is the limited stack and ram/romspace of the 8048 really does require the efficientcy of assembler. It's possile to create some varient of a tiny micro basic but then it has to fit in 1K and also any program in the same 1k. If you working with 8048/9 off that board more space is possible but remember the ability to address ram without some banking scheme is limited to 256 bytes. I'd say keep looking though as I've likely missed a few. I'm sure it's possible to tweak the code generator in SDCC to do 8048 and it's rare anyone uses more than 4k. But the compiler logic to do the bank switch is likely insane since interrupts are only handled in the low memory page. There are all sorts of cross assemblers out there. Allison