- Access to a non-locally declared variable can not be done with a static link.
- The binding of the non-local variable is dependent on the flow of execution.
- The scope of the name is dependent on runtime call chain.
sub2() { }
declare x;
...
...x...;
...y...; //non-local
...
sub1() {declare y;}...
...y...;
...z...; //non-local
sub2;
...
main() {declare x,y,z;
z = 0;
x =5;
y =7;
sub1;
