<!-- Bug report: --> Binary to decimal not working as expected

[hex64dbg]

Summary

If you try to convert more then 8 bits to decimal, it isn't working as expected.
For exemple :
Input : "111111111" (9 bits total)
Ouput : "255 1"
Expected output : "511"
What happend is that the first 8 bits were converted to 255 than the last one was converted to 1.

https://gchq.github.io/CyberChef/#recipe=From_Binary('Space')To_Decimal('Space')&input=MTExMTExMTEx

[OllieJC]

So this is because most operations output a byte array, including From Binary so 111111111 becomes 0xFF,0x01 then To Decimal converts each to 255,1

This is as far as I've got to a fix using byte arrays. and it kind of works.. with binary as an input you need an additional Swap endianness operation to turn 111111111 into 0x01,0xFF then the below code works (otherwise 111111111 gets interpreted as 0xFF1 / 4081).

src/core/operations/ToDecimal.mjs (full change here: OllieJC@5693d1e)

run(input, args) {
    const delim = Utils.charRep(args[0]);
    if (args[1]) {
        var res = "";
        for (var i = 0; i < input.length; i++) {
            res += input[i].toString(16);
        }
        return parseInt(res,16).toString();
    } else {
        return input.join(delim);
    }
}

edit: previous code did bit-shifting but that only works up to int32, above works int64

[n1474335]

As @OllieGeek says, the 'From Binary' operation works on byte arrays, so the maximum binary value is 255. What you're looking for is 'From Base' which deals with numbers:

https://gchq.github.io/CyberChef/#recipe=From_Base(2)&input=MTExMTExMTEx

[OllieJC]

Ah nice @n1474335 - I didn't know From Base existed :)