A micro controlled peripheral processor

@inproceedings{Barron1973AMC,
  title={A micro controlled peripheral processor},
  author={E. T. Barron and Robert M. Glorioso},
  booktitle={MICRO 6},
  year={1973}
}
This paper discusses the design and construction of a micro controlled mini-computer used as peripheral processor unit for the PDP-11/20 in the Electrical and Computer Engineering Laboratory at the University of Massachusetts at Amherst. The instruction set for this computer is determined by the micro code in a read only memory (ROM) and is therefore flexible: Changing the ROM results in a different set of machine instructions. The instruction set currently implemented while general purpose in… 

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References

Virtual memories for mini-computers

TLDR
The system constraints and their effect on the design parameters are discussed in detail and a general design philosophy is developed and a specific implementation of a virtual memory system on a PDP-11/20 is described.