When you use the same set of instructions several times in a program, you can create a function and call that function every time you need to execute the instructions. However, there is a performance penalty with functions: every time you call a function, the execution jumps to the function at some place in memory and, when finished, jumps back to the calling program. Calling and returning from a function takes time.
To avoid this performance issue, you can work with macros. Similar to functions, macros are a sequence of instructions. You assign a name to the macro, and when you need to execute the ...
