sehugg / dithertron

Retro 8-bit bitmap converter supporting many formats
GNU General Public License v3.0
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Screen control register Vertical raster scroll incorrect #11

Closed robin-raymond closed 1 year ago

robin-raymond commented 1 year ago

I noticed you had $38 which causes the vic scroll to be "0" which pushes the image up on the screen. The value should be $3B (setting the lower three bits to %011), which is the default "neutral" scroll for the system. The Hires FLI demo also uses this $38 value but that scroll is changed the next frame so it doesn't cause any issues.