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Today I did a (re)capture of the HV counter values along the 223rd raster line and another one of the VDP status port in H40 video mode and then aligned them manually. This was made using a fake 68000 processor to perform an extremely long read of both C00004 and C00008. The horizontal counter...

First post lol. Over the course of the years breaki-- researching megadrives I've been gathering info from various sources and also discovering small bits here and there on my own. This thread serves as a means to document these findings in particular about the diplay processor somewhere more...