Simcir the circuit simulator

Version 1.2

Simcir is a simple simulator of logic circuit.
Let's try your logic!

Click here to run simcir

System Requirements

Simcir a browser or Java Runtime Environment that support Java1.1.
Successfully tested on following environment.

• Sun JDK/JRE 1.1.7, 1.2.1
• Netscape Communicator 4.5
• Microsoft Internet Explorer 4.0 SP1

Usage

1. Choice a device from the toolbox and move to right side.
2. Connect them by drag operation.
3. Click a input node to disconnect.
4. Move a device back to the toolbox if you don't use.

Note

• To simplify the model, all devices transfer only voltage but current.
• Please don't make infinity loop like a vibrator. :-)
• When logic gate's input node is not connected, it treated as pulled down.

How to run

• Run as application

Append archive (lib/simcir.jar) to your classpath.
Then type 'java simcir.Main'.

• Run as applet

You can set the file of default circuit as parameter 'file'.

Example

<applet code="simcir.Main"
width="600" height="400" archive="lib/simcir.jar">
<param name="file" value="rs-ff.cml">
</applet>

History

v1.2 (March 7th 1999)

• Apply Java1.1 APIs.
• Append cut, copy and paste operation.
• Append save (need to run as application) / load function.

v1.1 (February 7th 1999)

• Replace device select buttons with a toolbox.
• Improve graphic performance.
• Add the NOT gate.
• Fix many bugs.

v1.0 (November 30th 1998)

• Change signal transfer model.

v1.0b (November 12th 1998)

• Original version

Copyright © 1998-1999 Kazuhiko Arase