I'm building a gameboy emulator and when I was debugging the boot ROM I noticed there was the instruction `xor A` (which xor's a with itself). I was wondering why they chose such a weird way to set A to 0. Now it makes sense -- since the boot ROM is only 256 bytes, they really needed to conserve space! Thanks for this, looking forward to the rest of the series!
I'm building a window manager for macOS. I got frustrated with Divvy having inconsistent resizing on several apps, eg Firefox, and I wanted to be able to fully control window size and position with _only_ my keyboard (like increasing the width/height or moving the window one column to the left).
1. https://iocaine.madhouse-project.org/
2. https://poison.madhouse-project.org/