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Known Issues: CPC #55

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floooh opened this issue Nov 28, 2021 · 0 comments
Open

Known Issues: CPC #55

floooh opened this issue Nov 28, 2021 · 0 comments

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@floooh
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floooh commented Nov 28, 2021

  • the floppy disc emulation doesn't take timing of 'phyisical components' into account (e.g. all seek times are 'immediate'), this causes some demos to temporarily speed up during disc loading

  • in the Demoizart initial part, there's some overlay scrolling text missing during the rotating cube sequence

  • some demos still have 'vertical' timing issues:

Demoizart 'Critical Part':

Screenshot 2021-11-28 at 15 16 19

Screenshot 2021-11-28 at 15 17 51

Screenshot 2021-11-28 at 15 18 24

  • horizontal timing issue in Gloire a Piou! (this is extremely sensitive to moving IO writes one cycle forward or backwards, or the actual clock cycle where the wait pin is set versus the video system ticked):

Screenshot 2021-11-28 at 15 20 22

  • some demos show pixel junk at the lower or upper border (should those areas simply be blank?):

PhX: in the rotating 3D cube section, lower border:

Screenshot 2021-11-28 at 15 24 23

And in the next text scroller section upper border:

Screenshot 2021-11-28 at 15 24 36

  • in Batman Forever, subtle flickering pixel junk in text scroller parts

  • From Scratch: this bar on the left in the first plasma screen (can also be tweaked by moving IO reads one tick backward):

Screenshot 2021-11-28 at 15 31 36

...and later From Scratch hangs completely.

  • One Screen Colonies: graphics completely broken:

Screenshot 2021-11-28 at 15 34 39

  • Scroll Factory: palette is broken on left side of intro screen (should be blue):

Screenshot 2021-11-28 at 15 38 09

  • Points Barres: some minor artefacts of the bottom of vertical scrolling text:

Screenshot 2021-11-28 at 15 46 59

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