Hi, I'm currently building a simple 6502-based computer trainer and I'd like to implement a floppy drive on it. Steve Wozniak's Apple Disk II interface (the FDD interface for the Apple II) is quite simple, but I need the data that was programmed into the PROMs (P5 and P6 - they're 6309s). If I'm interpreting the Apple Disk II schematics correctly, then the part designations are D3 and B3 (for the P5 and P6 ROM, respectively). Ideally, I'd also like a copy of the PROM data for the later revision of the Disk II (P5A and P6A). I've got some info on programming the Disk II, but without the PROM data, I can't even get the interface running! Thanks. -- Phil. http://www.philpem.f9.co.uk/ philpem(a)bigfoot.com