Building a TMS9918 Sprite Editor for My TI-99 Game with Grok

Hey everyone, Ben here. I’ve been working on a game for the TI-99/4A, and sprite editing for the TMS9918 has been one of the bigger early challenges. I wanted something that handled 8x8 and 16x16 sprites properly, stacking, animations with realistic frame timing, and clean exports to assembly …