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A free application to sketch Datapath for a processor

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eenteghadi

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Hi,

I want to draw datapath for a self-designed processor similar to MIPS and DLX (It has almost the same digital components: PC, MUX, Reg. File, Memory and etc). Can you please introduce me a free application to do so?

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Microst Powerpoint? Or the free OpenOffice equivalent?
Or XCircuit which is intended for circuit diagrams but actually can be used with any symbols if you create them in a library (use a three-button mouse or one with a clicking scroll-wheel if you wish to use the latter).

EDIT: See this screenshot which shows how I created a example symbol in a library in Xcircuit. I could now use that symbol as part of any drawing in xcircuit if I wanted to. I think Xcircuit would be a good choice for arbitrary diagram drawing needs.
xcircuit_example.jpg
 
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Thanks for your response. I don't want to sketch circuit diagram. If you search DLX processor on google image you will see how my diagram looks like. My design belongs to hardware digital logic category. I also tried microsoft visio but it has limited components. .
 

I understand you don't want to sketch a circuit, I'm quite aware of that. I'm also aware of DLX from the famous Hennesey/Patterson textbook. Xcircuit can be used for any diagram.
 

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