Two issues of Masking Time | Turing Complete | Page 1

vale lichen · 2026-04-22T12:15:32.166Z

`v2.1.90` 1. The test thinks current output is -2 when the level output component is getting data of 2 from a 2-bit wire. (The level Maze is also affected by the issue) 2. The level can be cheesed by simply keeping the level input component disabled and outputting 0.

vale lichen Apr 22, 2026, 12:15 PM

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v2.1.90

The test thinks current output is -2 when the level output component is getting data of 2 from a 2-bit wire. (The level Maze is also affected by the issue)
The level can be cheesed by simply keeping the level input component disabled and outputting 0.

dense quest Apr 22, 2026, 12:31 PM

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There's another way the level can be cheesed:
You can set the Output component to 2-bits wide and just connect Input to Output and enable both ... unielsFall

quiet elm Apr 22, 2026, 3:21 PM

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dense quest There's another way the level can be cheesed: You can set the Output component t...

I don't think that's cheese, that's just building specific hardware to solve the problem

warped urchin Apr 22, 2026, 3:25 PM

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It's the same score and principle as the best score, just using fewer components.

dense quest Apr 22, 2026, 4:09 PM

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Well, yeah, 0 gates 🤷

pine forum Apr 27, 2026, 11:33 AM

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I fixed issue 2. for the next patch but I couldn't reproduce 1.
Maybe its fixed

warped urchin Apr 27, 2026, 11:55 AM

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This fails, but I don't see the reported -2.
In version 2.1.91 on Windows.

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I mean I do see -2 if the display mode is set to -1, but that's not causing the test failure.

vale lichen Apr 27, 2026, 12:00 PM

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warped urchin This fails, but I don't see the reported `-2`. In version 2.1.91 on Windows.

I observed -2 by modifying test.si:

if output != input % 4 {
    set_error(`{input} mod 4 is {input % 4} but current output is {output}.`)
    return fail
}

blissful zealot Apr 27, 2026, 2:00 PM

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Does it work normally if the bit maker replaced with 4-bit one? If so, this is possibly the same bug of bad higher bits: https://discord.com/channels/828292123936948244/1496603665006592101

vale lichen Apr 27, 2026, 3:22 PM

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blissful zealot Does it work normally if the bit maker replaced with 4-bit one? If so, this is p...

Yes. Seems the same issue.

vale lichen Apr 28, 2026, 2:04 AM

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pine forum I fixed issue 2. for the next patch but I couldn't reproduce 1. Maybe its fixed

Has the patch been released? It appears that neither of the issues has been fixed in v2.1.91.

Edit: I just realized that v2.1.91 came out a few hours before your comment, so let's wait for the next patch.

warped urchin Apr 28, 2026, 9:47 AM

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This still happens in 2.1.94

pine forum Apr 28, 2026, 3:46 PM

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This solution works for me now

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Not sure what the -2 thing is

blissful zealot Apr 28, 2026, 3:51 PM

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The problem is when 2-bit maker is connected to output, it has garbage in upper bits. I suspect the root of issue is the same as here: https://discord.com/channels/828292123936948244/1498320131070230670

#Two issues of Masking Time