> instead of the 6502 that has shorter instructions and a lower clock frequency. The 6502 is a simpler CPU, 8 bit wide with less registers and less instruction

> instead of the 6502 that has shorter instructions and a lower clock frequency. The 6502 is a simpler CPU, 8 bit wide with less registers and less instructions. It uses a PLA instead of microcode, presumably because it still could get away with that.