pow2.cairo

// This is taken from https://github.com/greenlucid/chess-cairo.
from starkware.cairo.common.registers import get_label_location

func pow2(i: felt) -> felt {
    let (data_address) = get_label_location(data);
    return [data_address + i];

    data:
    dw 0x1;
    dw 0x2;
    dw 0x4;
    dw 0x8;
    dw 0x10;
    dw 0x20;
    dw 0x40;
    dw 0x80;
    dw 0x100;
    dw 0x200;
    dw 0x400;
    dw 0x800;
    dw 0x1000;
    dw 0x2000;
    dw 0x4000;
    dw 0x8000;
    dw 0x10000;
    dw 0x20000;
    dw 0x40000;
    dw 0x80000;
    dw 0x100000;
    dw 0x200000;
    dw 0x400000;
    dw 0x800000;
    dw 0x1000000;
    dw 0x2000000;
    dw 0x4000000;
    dw 0x8000000;
    dw 0x10000000;
    dw 0x20000000;
    dw 0x40000000;
    dw 0x80000000;
    dw 0x100000000;
    dw 0x200000000;
    dw 0x400000000;
    dw 0x800000000;
    dw 0x1000000000;
    dw 0x2000000000;
    dw 0x4000000000;
    dw 0x8000000000;
    dw 0x10000000000;
    dw 0x20000000000;
    dw 0x40000000000;
    dw 0x80000000000;
    dw 0x100000000000;
    dw 0x200000000000;
    dw 0x400000000000;
    dw 0x800000000000;
    dw 0x1000000000000;
    dw 0x2000000000000;
    dw 0x4000000000000;
    dw 0x8000000000000;
    dw 0x10000000000000;
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    dw 0x100000000000000;
    dw 0x200000000000000;
    dw 0x400000000000000;
    dw 0x800000000000000;
    dw 0x1000000000000000;
    dw 0x2000000000000000;
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    dw 0x8000000000000000;
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    dw 0x20000000000000000;
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    dw 0x80000000000000000;
    dw 0x100000000000000000;
    dw 0x200000000000000000;
    dw 0x400000000000000000;
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    dw 0x2000000000000000000;
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    dw 0x800000000000000000000000000000000;
    dw 0x1000000000000000000000000000000000;
    dw 0x2000000000000000000000000000000000;
    dw 0x4000000000000000000000000000000000;
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    dw 0x10000000000000000000000000000000000;
    dw 0x20000000000000000000000000000000000;
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    dw 0x400000000000000000000000000000000000;
    dw 0x800000000000000000000000000000000000;
    dw 0x1000000000000000000000000000000000000;
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    dw 0x4000000000000000000000000000000000000;
    dw 0x8000000000000000000000000000000000000;
    dw 0x10000000000000000000000000000000000000;
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    dw 0x10000000000000000000000000000000000000000000;
    dw 0x20000000000000000000000000000000000000000000;
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    dw 0x100000000000000000000000000000000000000000000;
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    dw 0x100000000000000000000000000000000000000000000000;
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    dw 0x2000000000000000000000000000000000000000000000000;
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    dw 0x10000000000000000000000000000000000000000000000000;
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    dw 0x100000000000000000000000000000000000000000000000000000000000000;
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    dw 0x400000000000000000000000000000000000000000000000000000000000000;
}