The V9958 is a bad design. No, really.

As I design the HEC, I have to work with the V9958 VDP from Yamaha. This video is the culmination of me getting increasingly frustrated with the quirks of this chip. It is an ingenious design yet bogged down by several key design decisions. What are your thoughts on this chip? Have you got any experience programming for it? Please leave the ideas in the comment section below.