Z80 Assembly

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This book teaches Z80 Assembly Programming, a language used in the Texas Instruments TI-73x, TI-81, TI-82, TI-83x, TI-84x, TI-85, and TI-86 calculators. A modified version was also used in the production of the Nintendo Game Boy and Game Boy Color.

This book will provide instructions for programming, transferring, and executing an Assembly program on a Texas Instruments calculator. Note that only the TI-82 and above have a link cable to transfer files from your computer to the calculator, so the TI-73x and TI-81 cannot be used.

Table of Contents[edit]

Getting Started[edit]

  1. What You Need
  2. Hello World
  3. Jumps
  4. Registers
  5. Memory
  6. Data Types
  7. Input
  8. Variable Operations


  1. Appendix A: ROM Calls
  2. Appendix B: System Flags
  3. Appendix C: Key Codes