Motorola 6800

A {microprocessor} released shortly after the {Intel 8080}, in

about 1975. It had 78 instructions, including the

undocumented HCF ({Halt and Catch Fire}) bus test instruction.

The 6800 evolved into the {Motorola 6801} and 6803.

The {6502} was based on the design of the 6800 but had one

less data register and one more index register.

(1994-10-31)