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Digital Circuit Simulators

  CSc 314 Study Material

Here are links to some digital circuit simulators.

DigSim

This is a Java program. It's fairly complete, except that it lacks a subcircuit mechanism. It is free, apparently unmaintained, and crashes a lot. If you use it, make sure to save your work frequently.

The linked file is a self-extracting zip file. Run it in the root of the C drive. It contains a java.policy file which allows java to write the hard drive. I know that works on the only 95 boxes we used to have, but it may need to go elsewhere on NT class machines.

Logisim

This is also a java program, and it's not too bad. Source code is not available, though.

MultiMedia Logic

A nice-looking Window-based simulator. Haven't tried it beyond install-and-see-if-it runs, but it does that much without problems.

KLogic

A fairly-nice Linux-based server. I'm a bit annoyed with it now, since I've found a couple of bugs. But I don't know if its generally any worse than some of the others I haven't stressed so much.

Chipmunk

An older, not-so-pretty Unix-based system that works reasonably well.