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Implement accuracy-level-3 Blitter #647

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dirkwhoffmann opened this issue Feb 4, 2022 · 1 comment
Open

Implement accuracy-level-3 Blitter #647

dirkwhoffmann opened this issue Feb 4, 2022 · 1 comment
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@dirkwhoffmann
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Right now, three Blitter accuracy levels are supported:

  • Level 0: Fast Blitter
  • Level 1: Fake Slow Blitter (Fast Blitter + Accurate bus cycle allocation, mainly used for debugging)
  • Level 2: Micro-coded cycle-accurate Blitter

The Trackmo demo discussed in #641 is not compatible with either of them. It (accidentally) writes the Blitter registers while the Blitter is running. The new level 3 Blitter should emulate the Blitter hardware according to the Agnus schematics. It should be capable of handling on-the-fly register modifications.
@dirkwhoffmann dirkwhoffmann added the Enhancement New feature or request label Feb 4, 2022
@dirkwhoffmann dirkwhoffmann mentioned this issue Feb 4, 2022
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@mras0 mras0 mentioned this issue Jun 9, 2022
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@dirkwhoffmann
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#708 discusses another demo which relies on accurate Blitter emulation.

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@dirkwhoffmann