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Re: Scroll text techniques
Posted by: earx Oct,25.2007-09:49 

yes, you got the idea with the OR and MOVE :)

depends on what you mean with "shift using movem". you can only copy pre-shifted data with movem. if you shift the whole scrollline on screen and only draw 1 new char on the right, movem is basically not an option. you can do this using the ROXL (>1 pix/VBL) or ADDX (1 pix/VBL) instructions. this approach may indeed work out for 1 bitplane graphics but i've never measured the performance.









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Topic Posted by  Date 
Scroll text techniques Vincent Riviere Oct,24.2007-20:03
  Re: Scroll text techniques earx Oct,24.2007-20:09
    Re: Scroll text techniques earx Oct,24.2007-20:27
      Re: Scroll text techniques earx Oct,24.2007-20:31
        Re: Scroll text techniques earx Oct,24.2007-20:32
      Re: Scroll text techniques Vincent Riviere Oct,24.2007-22:33
        Re: Scroll text techniques earx Oct,25.2007-09:49
  Re: Scroll text techniques ggn Oct,25.2007-11:23
    Re: Scroll text techniques Bod/STAX Oct,25.2007-17:55
  Re: Scroll text techniques evil Oct,27.2007-17:50
    Re: Scroll text techniques earx Oct,27.2007-19:01
    Re: Scroll text techniques Bod/STAX Oct,27.2007-19:18
      Re: Scroll text techniques gloky Nov,25.2007-13:22
        Re: Scroll text techniques Bod/STAX Nov,25.2007-21:26
          Re: Scroll text techniques gloky Dec,10.2007-22:15
            Re: Scroll text techniques gloky Jan,04.2008-15:10


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