Compiler Directives

The Pascal65 compiler can read special directives from the program source file that change settings in the compiled code or configure the compiler.

Directives are enclosed inside a comment block and are preceded by a dollar sign. The comment block must be the multi-line format that begins with a left parentheis and asterisk and ends with an asterisk and right parenthesis. See the comments page for more information.

Output Directives

Stack Size

Compiled Pascal programs use a stack to store all information in the program. That information includes:

• Global variables
• Local variables in each routine
• Parameters passed to routines
• Return values from functions

The stack consumes memory in the computer. The default size of 512 bytes should be sufficient for most programs. If a larger stack size of required, this directive can be used.

(* $StackSize xxxx *)

The stack size can be specified in base-10 or hexidecimal.

Example

Program Test;

// Stack size of 1024 bytes
(* $StackSize 1024 *)

Begin
    Writeln('Hello world');
End.