Here is the perfect reference guide and programming tool for programmers of 6502-based microcomputers. The 6502® User's Manual contains all the information you need for assembly and machine language programming, and for performing hardware interfacing chores. Joseph Carr, also the author of the popular Z-80™ User's Manual, includes comparisons of micro, mini, and main frame computers, and looks at applications categories for microcomputers in general and for the more popular 6502-based machines in particular. This valuable guide covers: Introduction to Microprocessors and Microcomputers; 6502 Architecture; 6502 Pinouts; Timing and Control Signals; 6502  addressing Modes; 6502 Status Flags; 6502 Instruction Set (General); 65xx-Family Support Chips; Device Selection and Address Decoding; Interfacing Memory to the 6502; Interfacing 1/0 Devices to the 6502; Interfacing Peripherals to the 6502; Interrupts; Interfacing with the Apple II BUS; Interfacing with the KIM-1, AIM-65 and SYM-1; 6502 Instruction Set (Detail).