How to create new function in microbasic script and call them as per our need?

Hey Guys,
I am trying to build an agv
the traditional approach using if....else statement is making my drive shaky
so i am trying a different approach
i need to create different functions and want to call them when I need ?
how Can i do this ?
Please help.

MicroBasic does not support functions, but it does support subroutines.

You can call subroutines from labels using the gosub keyword.