In the debugger, global variables can be referred to from any module. However, if a symbol of the same name exists in the local scope, this variable must be qualified by a root name, by \ (current root), or with ::.

In the debugger, static functions can be referred to from the same module without qualification. Static functions in other modules must be qualified with the module name if the name is ambiguous or the module has not been used yet (not loaded).

A local variable is accessible when it is local to the current function, local to the current unnamed block, or when its function is on the stack. It can be qualified by function, line, or stack level.

Register variables might not be available from all lines in the function, because hardware registers can be shared by more than one local register variable. A register variable is accessible when it is local to the current function or when its function is on the stack. It can be qualified by function or stack level.