6o6 v1.1: Faster 6502-on-6502 virtualization for a C64/Apple II Apple-1 emulator

6o6 v1.1 is an updated 6502 virtualization library that runs a 6502 core on a 6502 CPU. The new version includes performance improvements to addressing modes and zero page operations, reducing execution time by over 40 million instructions. The author demonstrates it with an Apple-1 emulator that runs on Commodore 64 or Apple II systems.