Martin Irons

46 Magic Circle Dr., Goshen, NY 10924


Browse the powerful routines in ROM, check your own machine code by converting it to assembler statements. Converts 812 regular and extended opcodes to assembler mnemonics; no external tables required; jump to any point in memory at any time. 16K.
TS 1000


  • [If you have a logic probe ... ]
    Use logic probe to record state of ICs in the computer.
    Program scans the ROM up to 7679, building a stack of CALLED and CALLING addresses. Then it sorts and displays them.
  • Dear Editor
    Letters with improvements programs; corrections; math error in 8K ROM; converting 4K ROM programs to 8K ROM; ZX80 users online.
  • Dear Editor
    Letters about issues assembling MicroAce; tv/cassette player placement; adapting programs; reverse video; cassette eavesdropper; amateur radio operators.
  • How Many Bytes to the Line?
    Subroutine determines the exact number of bytes used for each line of program instruction as well as an entire program.
  • Line Renumbering
    This program renumbers the line numbers in any other program in memory.
  • New Products and Services (Syntax v3 n9)
    New products from f/22 Press, NIM Electronics, Stuart Software, Norris Electronics, G. Russell Electronics, Lyon Ware, Fulcrum Products, Martin Irons.
  • New Products and Services (Syntax v4 n1)
    New products from KSOFT, D. Lipinksi, ZX Software Team, M.C. Hoffman, Run-it Software Club, Startext, Expense Cutters Products, Computa-Dek, Bytesize Computer Products, Computer Continuum, Martin Irons, Rose Aircraft. Charles Durang will not publish ZX Newsletter, focus on books instead.
  • New Publications
    QZX newsletter serves amateur radio operators who own ZX80s, published by Martin Irons.
  • Printing Strings Faster
    Use a full-length string of characters to print a bar graph instead of plotting each section.
  • Program Improvements
    Improvements to READ-DATA-RESTORE, Flower Plot, Income Tax program.
  • Reduce 4K Loading Noise
    4K ROM users: instead of building our Cassette Eavesdropper (Dec. 80) to reduce loading noise, try a dual mini-plug from Radio Shack.
  • Resources (Sync v3 n1)
    Listing of new user groups, books and other resources.
  • The History of QZX
    History of the ham radio focused computing magazine founded by Martin Irons.
  • ZX80 Group
    Licensed hams using the Sinclair ZX80 or Microace now have a user net on single sideband. Contact Marty Irons, K2MI, 46 Magic Circle Drive, Goshen, NY 10924.


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