The Logisim CPU described in the book, "CODE"
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README
p_208.circ
p_214.circ
p_216_code.dat
p_216_data.dat
p_222.circ
p_222_ram.dat
p_222_test.circ
p_227.circ
p_227_count.dat
p_231.circ

README

This project contains Logisim models of the CPUs described in CODE. The CPUs get more complex as the book progresses. p_231 is the most sophisticated processor in the book, adding conditional jumps. While the other processors work fine, this processor has a serious problem due to a race condition in the conditional jump handler. I will have to look into it later.