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What does the "x - y" notation mean in TON documentation?

Using the TON documentation, one can stumble upon tables that have a column with some "x - y" notation, like this one:

What exactly does "b - x" mean here?

This question was imported from Telegram Chat: https://t.me/tondev/137224

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It's "inputs" and "outputs" of an operation. The part before - is what needs to be on the top of the stack to be used. The part after - is what's placed on the top of the stack after it's over. The letters stand for data types (Builder is noted as b, and so on).

So in this particular case this notation means that the operation requires an instance of Builder data type to be on the top of the stack, it takes that Builder instance and returns a number (of bits already stored in that Builder), placing it on the top of the stack. Note that the Builder itself disappears from the stack in process.

Posted 27 days ago
Edited 27 days ago
1 Answer
27 days ago
27 days ago