English Amiga Board - View Single Post - 32 and 64 bit sprite control words question

FrenchShark · 07 January 2008, 02:47

Hello,

this is still related the the AGA/AAA minimig implementation.
I would like to know the format of the first line of a 32-pixel or 64-pixel sprite : I guess they are 2 x 2 words long and 2 x 4 words long respectively. But, where are the control words located ?
Is it :
<SPRxPOS>, <1 empty word>, <SPRxCTL>, <1 empty word> for 32-pixel sprite

<SPRxPOS>, <3 empty words>, <SPRxCTL>, <3 empty words> for 64-pixel sprite

BTW, for the AAA implementation, I have a problem with sprite positioning on high resolution screen (i.e. 1280x1024), there is not enough bit for VSTART and VSTOP.

Regards,

Frederic

07 January 2008, 02:47	#1
FrenchShark FPGAmiga rulez! Join Date: Dec 2007 Location: South of France Age: 50 Posts: 155	32 and 64 bit sprite control words question Hello, this is still related the the AGA/AAA minimig implementation. I would like to know the format of the first line of a 32-pixel or 64-pixel sprite : I guess they are 2 x 2 words long and 2 x 4 words long respectively. But, where are the control words located ? Is it : <SPRxPOS>, <1 empty word>, <SPRxCTL>, <1 empty word> for 32-pixel sprite <SPRxPOS>, <3 empty words>, <SPRxCTL>, <3 empty words> for 64-pixel sprite BTW, for the AAA implementation, I have a problem with sprite positioning on high resolution screen (i.e. 1280x1024), there is not enough bit for VSTART and VSTOP. Regards, Frederic