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Software, utilities and documentation for the Z80-based NASCOM2 computer

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nealcrook/nascom

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NASCOM

Software, utilities and documentation for the Z80-based NASCOM computers.

  • PolyDos - code and documentaton for this excellent NASCOM operating-system
  • ROM - NASCOM ROM images (monitors etc), most including source code
  • converters - scripts for manipulating NASCOM disk and binary images
  • doc
    • NASCOM 1 RAM expansion (tested) -- see nascom1_expansion for PCB
    • NASCOM 2 RAM expansion (untested)
  • gm808_eprom_programmer - code, photos and documentation for this 2708/2716 EPROM programmer
  • hw_sim - verilog simulation of the NASCOM 1 and NASCOM 2 video sub-systems
  • m5 - a very simple "high-level language"
  • nascom 4 - a NASCOM re-imagined for the 21st-century FPGA age
  • programs - miscellaneous code
  • nascom_kbd - Uses a Raspberry Pi Pico to interface a PS/2 keyboard to the NASCOM
  • sdcard - Arduino-based SDcard storage. There are 2 versions:
    • A version that connects to the serial port instead of a tape recorder, and works with NAS-SYS tape commands
    • A version that connects to the PIO, with all supporting software to run PolyDos and to extract data from your old floppies
    • NEW: a PCB and a detailed user guide
  • nascom1_expansion - a 100mm x 100mm PCB that breaks into pieces to provide sdcard, RAM card and connector adaptors

Projects in planning

At the concept stage..

  • Get NASCOM CP/M running on a NASCOM 2 without the need for a special NASMD PROM

Comments/improvements

  • Email me or use the 'issues' button at the top on the github page.

  • Fork the project and make a merge request