<Pardon my ignorance, but what's an R6500? That wouldn't be an IBM <RISC machine, would it? No, non-ibm as it comes. It was the series of chips starting with the 6502 that wree used in the apple series, AIM, KIM, PET and Commodore machines. The number of hands the licensed 65xx chip design passed through is somewhat record as well! Allison