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Editorial Team
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Editorial Team
Asked: June 2, 20262026-06-02T16:59:33+00:00 2026-06-02T16:59:33+00:00

DCPU-16 (the CPU in Notch’s new game ) doesn’t seem to have any signed

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DCPU-16 (the CPU in Notch’s new game) doesn’t seem to have any signed IF/MUL/DIV instructions.

Is there still a way to do signed arithmetic/control-flow that isn’t super incredibly painful?

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  1. Editorial Team
    Editorial Team
    2026-06-02T16:59:35+00:00Added an answer on June 2, 2026 at 4:59 pm

    The new DCPU spec published by Notch the other day, does have signed arithmetic instructions:

    Unsigned  | Signed
    ==================
    MUL       | MLI
    DIV       | DVI
    SHR       | ASR
    IFG       | IFA
    IFL       | IFU
    
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