An article I wrote on how subtraction (or basic arithmetic) works inside the processor. I wondered it one day and went deep into up till registers. This resulted in me learning about how exactly CPU executes code.

Its from a few years back but never posted on HN. The content is timeless because basics stay more or less the same.

Let me know your honest thoughts. I love going deep into questions my mind gets stuck on. Let me know if you want me to continue this deep dive:D