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(Too) frequent port reads not working? #689

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thrust26 opened this issue Aug 4, 2020 · 3 comments
Open

(Too) frequent port reads not working? #689

thrust26 opened this issue Aug 4, 2020 · 3 comments
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bug needs research
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Prio 2

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@thrust26
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thrust26 commented Aug 4, 2020 •
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The attached program reads the x-axis of an Atari mouse. This works as long as the WSYNC in line 130 is enabled, the vertical bar can be moved left or right then. But without the WSYNC, you cannot move the bar.

Is this a bug?
7800test.zip
@thrust26 thrust26 added the bug label Aug 4, 2020
@thrust26 thrust26 changed the title (Too) frequent switches reads not working? (Too) frequent port reads not working? Aug 4, 2020
@thrust26
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I have added assembled ROMs. Make sure that you select an Amiga Mouse as left controller.

@sa666666
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sa666666 commented Nov 2, 2020

I assume you mean make sure to use Atari Mouse here?

@thrust26
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thrust26 commented Nov 2, 2020 •
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Yup.

I have the (vague) idea that the PointingDevice class which is using scanlines might be the problem.

@thrust26 thrust26 added this to the Prio 2 milestone Sep 4, 2021
@thrust26 thrust26 mentioned this issue Dec 29, 2021
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