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lgblgblgb / xemu

Emulations (running on Linux/Unix/Windows/macOS, utilizing SDL2) of some - mainly - 8 bit machines, including the Commodore LCD, Commodore 65, and the MEGA65 as well.
https://github.com/lgblgblgb/xemu/wiki
GNU General Public License v2.0
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MEGA65: Support for RRB reverse Y-row adjust #400

Closed RetroCogs closed 3 months ago

RetroCogs commented 3 months ago

New feature for RRB was added with this update https://github.com/MEGA65/mega65-core/issues/796.

This Issue is used for tracking updating Xemu to match support level.

Mega65 Issue 796 adds the support for indicating that FCM data Y offset should be subtracted instead of added, this fixes the issue that with parallax scrolling you'd need to duplicate your map char data. It also makes RRB sprites easier to implement.

I've validated that FShot (maybe the most extensive use of RRB) and my new sample to test this new feature both work flawlessly.

lgblgblgb commented 3 months ago

@RetroCogs Merged into next. Again, thanks for your contribution!