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Old 27 June 2008, 19:51   #60

Asman's Avatar
Join Date: Sep 2005
Location: Somewhere
Posts: 628
Originally Posted by Photon View Post

Also, it's so darn easy to make correct scrolling, just reserve a little larger than visible bitmap - to scroll in X just calc scrollreg value 0-15 and word offs, and draw any newly appearing tiles in the margin. For vertical scrolling, just add to the bitmap pointers and insert a split in the copper. For a footie field, race track etc just make a big bitmap
There is only one disadvantage, this method eat chip memory - only if you have a500 with 0.5Mb Chip

And If I good understand I need 4 "little larger" bitmaps for double buffered screen. If I'm wrong then please correct me.

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