Category Archives: Programming

Running a bitcoin lightning node on a VPS

Posted on February 3, 2023 by Dennis

I’ve been playing with owning some bitcoin for a while. Like long enough to own some but not long enough to have made any money. Like… I didn’t buy it when it was cheap before 2017. But that isn’t the … Continue reading →

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Writing binary data with Verilator

Posted on June 6, 2014 by Dennis

So you are simulating a verilog design with Verilator and you want to output part of your design data to a file in binary format. (Example you’re outputting an image.) Continue reading →

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Printing on one line with Python

Posted on September 26, 2013 by Dennis

You might be used to using sys.stdout when you want to print multiple items on one line with Python. Did you know you can do the same thing with the print statement? Continue reading →

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Fun with C++11 Lambdas

Posted on March 6, 2013 by Dennis

Basic lambda syntax and usage in c++11. Illustrate the difference between context parameters passed by reference and value. Continue reading →

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git diff with color words

Posted on June 2, 2012 by Dennis

I had these files with very very long lines of text on each line. It was paragraphs worth of words but not word wrapped. These files were stored in a git repository. Now and then, someone would change a word. … Continue reading →

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Quick convert raw g711 uLaw audio to a .au file

Posted on March 16, 2012 by Dennis

I had reason to playback some raw g.711 audio data. I made the following script to convert the data to a .au file that is playable. From the AU file spec.. which is way simple by the way: You just … Continue reading →

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