Michael Chiaramonte goes on with his NES Programming tutorials.

NES Programming #42 – Stronger, Better, Faster

Watch this video on YouTube.

Quote:

So, instead of working on collision today like I intended I ended up working on optimization of the code using Mesen’s awesome debugger and event viewer. I wasn’t feeling comfortable with the performance we were seeing in NMI and worked to get a better understanding of what was going on so that we can get our collision running in a later stream.