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Atari coding BBS
Shadebobs wth STE blitter?
Posted by: defjam Mar,28.2016-21:10 

I'm curious if shadebobs can be done with the STE blitter, or even have been done.

My guess is, it's not possible because of the data-dependencies,
the layout for shadebobs is this:

Plane[X]' = Plane[X] xor DataIn
DataIn' = Plane[X] and DataIn

X 0...3
DataIn is initialised with the 1bpp 16 pix spritedata.
The function is iterative starting with plane0(X=0) till plane3(X=3)

Any ideas?

[All messages in this thread]

Topic Posted by  Date 
Shadebobs wth STE blitter? defjam Mar,28.2016-21:10
  Re: Shadebobs wth STE blitter? PeyloW Mar,29.2016-01:09
    Re: Shadebobs wth STE blitter? defjam Mar,29.2016-19:14
      Re: Shadebobs wth STE blitter? PeyloW Mar,31.2016-00:59
    Re: Shadebobs wth STE blitter? defjam Mar,29.2016-21:26
  Re: Shadebobs wth STE blitter? Paranoid / pdx Mar,29.2016-19:00
    Re: Shadebobs wth STE blitter? WizTom Apr,17.2016-00:07
      Re: Shadebobs wth STE blitter? defjam Apr,20.2016-01:43

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