A comprehensive look at the commodore VIC20 and routines in machine code including a detailed look at the 6502 processor, the 6561 Video Interface Chip and the I/O functions of the 6522 user port.
A comprehensive look at the commodore VIC20 and routines in machine code including a detailed look at the 6502 processor, the 6561 Video Interface Chip and the I/O functions of the 6522 user port.