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arXiv:1106.2593cs.DC

A Simple Multi-Processor Computer Based on Subleq

Oleg Mazonka, Alex Kolodin

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Abstract

Subleq (Subtract and Branch on result Less than or Equal to zero) is both an instruction set and a programming language for One Instruction Set Computer (OISC). We describe a hardware implementation of an array of 28 one-instruction Subleq processors on a low-cost FPGA board. Our test results demonstrate that computational power of our Subleq OISC multi-processor is comparable to that of CPU of a modern personal computer. Additionally, we provide implementation details of our complier from a C-style language to Subleq.

arXiv comments
24 pages
Journal reference
DOI
Subjects
cs.DCDistributed, Parallel, and Cluster Computing cs.ARHardware Architecture cs.PLProgramming Languages

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Discussed in comments1 thread

  1. An emulator for a single-instruction (NOR) CPU 1 comment

    • Neat CPU. That and adamnemecek's comment made me do a quick Google to see if there's interesting results in OISC that you all might enjoy. Found an improvement on SUBLEQ that's pretty impressive. Original first and newest below: http://hasith.vidanamadura.net/projects/subleq/…

      nickpsecurityView on HNParent context

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