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Old 08 January 2015, 13:39   #18
Toni Wilen
WinUAE developer
 
Join Date: Aug 2001
Location: Hämeenlinna/Finland
Age: 42
Posts: 19,512
Quote:
Originally Posted by phx View Post
Understood. That make sense. DDFSTRT-1 wipes out the second DMA slot of sprite 6 in my case.

And with a normal DDFSTRT of $38, sprite 7's second DMA slot would be unusable? This means an OCS-Agnus system has always a problem with the last sprite? I never realized that before...
$38 is fine. $34 would break sprite 7.

Quote:
Er... what is so special about (raster) line 25? SPR6PT is loaded at VERTB, so I would expect SPR6POS and SPR6CTL to be loaded by the DMA immediately during the next raster line (0 or 1?).
Sprite DMA is always inactive until line 25 (PAL) or 20 (NTSC).
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