1/*!
2# `SWAP <variable>,<variable>`
34## Purpose
5Swaps the values of two variables.
67## Remarks
8A `?TYPE MISMATCH` error will occur if the types aren't identical.
9It's just like `TEMP=A : A=B : B=TEMP` but doesn't need a temporary variable.
1011## Example
12```text
13SWAP A,B
14```
1516*/