Programming the 6502

Programming the 6502 is a technical manual from 1979 that teaches assembly language programming for the MOS Technology 6502 microprocessor. The book covers programming fundamentals, instruction sets, and hardware interfacing for this influential 8-bit processor that powered systems like the Apple II, Commodore 64, and Atari 2600. Through progressive chapters and practical examples, Zaks guides readers from basic concepts through advanced programming techniques. The text includes detailed instruction references, timing diagrams, and sample programs that demonstrate key principles. The material emphasizes real-world applications and includes guidance on debugging, optimization, and input/output operations. Complete programs and exercises allow readers to practice concepts as they are introduced. As one of the earliest comprehensive guides to 6502 assembly language, this book represents a pivotal moment in personal computing history when programming became accessible to hobbyists and small businesses. The methodical approach established patterns for teaching assembly language that influenced technical education for years to come.

Readers cite this as their introduction to 6502 assembly programming in the 1980s. Many learned on Commodore 64, Apple II, or Atari systems using this text. Liked: - Clear explanations of addressing modes and instructions - Well-organized instruction reference - Progressive difficulty of example programs - Focus on practical techniques over theory - Useful memory maps and hardware details Disliked: - Some printing errors in code examples - Limited coverage of more advanced topics - Hardware descriptions became outdated - Index could be more comprehensive Ratings: Goodreads: 4.21/5 (19 ratings) Amazon: 4.4/5 (21 ratings) Reader quote: "This book taught me assembly language programming better than any college course." - Amazon reviewer Several readers noted keeping their original copies for decades and still referencing them when working with 6502-based systems.

Programming the Z80 by Rodnay Zaks This guide presents assembly language programming concepts for the Z80 processor with the same methodical approach used in the 6502 book.

6502 Software Design by Leo J. Scanlon The book focuses on practical programming techniques and real-world applications for the 6502 microprocessor.

Machine Language for Beginners by Richard Mansfield This text breaks down machine language programming for multiple processors including the 6502, making it accessible for newcomers to assembly language.

Assembly Language Step-by-Step by Jeff Duntemann The book teaches assembly language fundamentals using the x86 processor while maintaining the same detail-oriented approach found in Zaks' 6502 guide.

Programming the 65816 by David Eyes, Ron Lichty The guide extends 6502 knowledge to its 16-bit successor, the 65816, with emphasis on practical programming applications.

🔸 The 6502 processor, which is the focus of this book, was used in numerous iconic computers and gaming systems including the Apple II, Commodore 64, Nintendo Entertainment System, and Atari 2600. 🔸 Author Rodnay Zaks wrote more than 50 technical books during his career and founded Sybex, one of the first technical book publishing companies, in 1976. 🔸 The 6502's relatively low cost ($25 compared to competitors' $300) helped democratize personal computing in the late 1970s and early 1980s. 🔸 This book was published in 1980 and remains one of the most comprehensive references for 6502 assembly language programming, still used by retro computing enthusiasts today. 🔸 The 6502 processor was designed by a team of just six people at MOS Technology, led by Chuck Peddle, who had previously worked for Motorola on the 6800 processor.