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Old 20 June 2002, 09:59   #14
Toni Wilen
WinUAE developer
 
Join Date: Aug 2001
Location: Hämeenlinna/Finland
Age: 43
Posts: 21,082
Quote:
copper could reload the screen quicker on the A12oo (4 pixels as opposed to 8pixels on the A5oo)
A1200's copper is exactly as fast (or slow..) as A500's. It may look faster because AGA bitplane DMA usually is set to use high bandwidth fetch modes that leaves more DMA time to copper and blitter, but I think you must already know this

Quote:
16.8 million colours, max 256,000 on screen through HAM-8, which is pointless as it takes up too much DMA time to be anything more useful than static pictures
I agree that HAM8 is not useful for moving screens but I don't believe on your DMA-time explanation because AGA 8 bitplane lores screen with FMODE-register set to 3 uses only 1/4th of available DMA time..
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