Logisim is an educational tool for designing and simulating digital logic circuits. With its simple toolbar interface and simulation of circuits as you build them, it is simple enough to facilitate learning the most basic concepts related to logic circuits. With the capacity to build larger circuits from smaller subcircuits, and to draw bundles of wires with a single mouse drag, Logisim can be used (and is used) to design and simulate entire CPUs for educational purposes.
A list of features:
Download logisim-generic-2.7.1.jar. Create a directory (folder) "Logisim". Copy the jar file to this directory. That's it!
The logisim.cmd file
Logisim works with Open JDK in OS/2-eCS. I have made a logisim.cmd file with the following contents;
@echo off set path=[drive: java]\JAVA160\bin set BEGINLIBPATH=[drive: java]\JAVA160\bin set CLASSPATH= [drive: logisim] cd [drive: logisim]\Logisim java -Duser.home=[drive: logisim]\Logisim -jar logisim-generic-2.7.1.jar 2>logisim-bugs.txtI use 2 separate folders (directories), one for Java and one for Logisim with the files created by this program. The references used in the cmd file;
should be replaced with real drive letters. Edit and save the file "logisim.cmd" from the distribution. This file is copied to the "Logisim" directory (folder). Furthermore, different paths?, adjust according to your needs.
Create a new program object. Specify the path and file name: "[drive: logisim]\Logisim\logisim.cmd". In the tabpage Session check the boxes "OS/2 window", "Running as an icon" and "Close Window to end program". In the tabpage General you can enter the name "Logisim". You find enclosed in the file a suitable OS/2 icon.
Parameters / options explained
In the file you can find the above command file (all driveletters are set to C:) and an OS/2 Logisim icon: logisim-ecs.zip.
revision June 11, 2016