My first java program is an attempt to relive the days I spent maintaining a Lockheed Electronics Company minicomputer installation in an old electricity generating station.
I had a little bit to do with this machine around 1978. There was two of them in a failover configuration with the standby machine available for program and data development.
My goal is to get the development package called DEVSYS to run from a paper tape image that I have hung onto for all these years. The program has a co-resident line editor and assembler but has no real purpose for me after that is running.

Features

  • B bootstrap, loads the PaperTapeLoader program into memory
  • C copying redistribution rights
  • E examine, dumps a 128 block of words with ASCII
  • G go, executes the emulator
  • L load, reads a file in bootstrap format
  • M memory change, for typing in 16bit words into memory
  • O opcode display, 16 words of memory with opcodes
  • P punch, writes to a file in paper tape bootstrap format
  • R read dump, loads into memory a memory dump
  • S single step, executes the emulator, with registers displayed
  • W without warranty warning
  • X or Q exits this program.

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Registered

2021-05-30