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PDP-11 Emulator and Toolchain.

Its still early in development, but it can run some bare-metal program. Build them with make -C examples, and try e.g., ./emu examples/build/echo_interrupt for an interrupt-based echo console with an emulated KH11 teletype.

Repo Structure

  • aout/: a.out object/binary format library.
  • assembler/: PDP-11 assembler library and cli binary.
  • as: script to compile and run assembler.
  • common/: library with the assembly data structures, constants, and some helper functions.
  • disassembler/: PDP-11 disassembler library and cli binary.
  • emulator/: PDP-11 emulator library and cli binary.
  • emu: script to compile and run emulator.
  • examples/: example programs to run in the emulator.
    • fib: print the first 10 Fibonacci numbers.
    • timer_ticks: print at a fixed interval based on timer interrupts.
    • echo_spin: a spinning-based echo console.
    • echo_interrupt: an interrupt-based echo console.
    • threads: a demonstration of preemptive multitasking (two threads repeatedly print their TIDs).
  • interpreter/: a helper cli binary that assembles and emulates the specified program.
  • interp: script to compile and run interpreter.
  • tests/: integration tests.

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PDP-11 Emulator and Toolchain

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