I did something like that once for a truly awful machine-language-like system I had to work with at a bank: 8607,,,1 11547,15475,22002,22002 1316,1629,1,

I did something like that once for a truly awful machine-language-like system I had to work with at a bank: 8607,,,1 11547,15475,22002,22002 1316,1629,1,1649 3001,1316,3,30078 11528,22052,22002,22002 9301,0,1528,1528 31568,10001,800,107 8560,,,1568 8550,210,, 3001,,, 3100,1316,3,30089 11547,15475,22002,22002 3001,1316,3,30089 3001,1317,3,10000 8400,,, 8550,700,801, 3001,,, 9301,0,522,522 3000,1284,3,10001 8500,,3, 8500,,5, 1547,,1,-2301 Through the translator, the result looked like this: https://github.com/jloughry/BANCStar/blob/master/README.md https://github.com/jloughry/BANCStar/blob/master/README.md The arrows in the margin duplicated the handwritten notation developed by programmers to deal with the numeric machine code. If a colour printer had been available at the time, it would have duplicated the highlighter pens those programmers used too; instead I used boldface, italics, underlining, and condensed characters to accomplish the same thing.