Inside the Model 100




Inside the TRS-80 Model 100 Computer is a thorough guide to the internal workings of the Radio Shack Model 100, the best-selling laptop computer.  This book is a valuable source of information for those who wish to learn machine-language programming and providers powerful new techniques for BASIC programmers.  Topics discussed include:

  • disassembly of critical ROM routines
  • keyboard scanning
  • UART, RS-232 and modern
  • clock/calendar chip
  • cassette and RAM file structure
  • interrupt handling
  • 8085 instruction set
  • explanation of SAVEM, LOADM, CALL
  • explanation of INP, OUT, PEEK, and POKE
  • I/O port map
  • power supplies

Commented ROM routine listings, detailed hardware schematics and numerous figures are provided throughout the book. Inside the TRS-80 Model 100 also contains invaluable appendices and is fully indexed. No Model 100 owner, whether novice or expert, should be without this book.

  • By Carl Oppedahl
  • copyright 1985
  • 334 pages
  • 9 inches by 6 inches by ¾ inch
  • ISBN:  0-938862-31-6

Additional information

Weight 17 oz
Dimensions 9 × 6 × 0.75 in