Master the art of Commodore 64 programming with this comprehensive guide to machine code routines. Written by Mark Greenshields, this 1983 publication features 40 practical machine code routines that will help you take your programming skills to the next level. From basic instructions like LDA, STA, and JSR, to more advanced techniques like JMP and CMP, this book is a treasure trove of coding knowledge. With its easy-to-follow format, you’ll be creating your own machine code programs in no time. Whether you’re a seasoned programmer or just starting out, this essential guide is a must-have for any Commodore 64 enthusiast.