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Y board soon
Made some good progress on the Y board games. They're all running mostly glitch free with full sprites and rotation working. Speed wise they mostly run 100% on my laptop (2GHz Centrino), except for Galaxy Force 2 which is just insane in parts. Sound is working, but the banking isn't correct yet. R. Belmont has given me a few hints there. Should be able to finish up this weekend I hope!
Y oh Y….
In between fixing bugs and adding the infamous "Yawdim" bootleg of Mortal Kombat, I took a look at Y-board last night. I took apart Haze's skeleton driver and reassembled it in the style of my other Sega drivers. Everything is back together and running as well as it was in 0.93: that is, I can see the System 16B-style sprites. A couple more hours communing with the code and I should hopefully have the Y-board sprites going, thanks to OG's guidance. Then it's on to the rotation chip, which definitely looks like an interesting beast to understand. :)