Return the entry point of a function or subroutine. The returned value is to be used solely in a corresponding ICALL.
The returned value is an integer value that is the internal node number of the compiled code where the function starts. The different node numbers are in complex relation with each other and simple rules can not be applied. In other words playing around with the value returned by the function ADDRESS and then using it in an ICALL may result interpreter crash raising internal error.
Note that in the argument of the function ADDRESS the function name has to include the () characters. The function is NOT called by the code when the function ADDRESS is used. On the other hand forgetting the opening and closing parentheses will result erroneous value unusable by ICALL.