7. Other hints

7.1 Passing arguments to the program

Command line arguments can be passed to main(). Since this is not supported by BASIC, the following syntax was chosen:

    RUN:REM ARG1 " ARG2 IS QUOTED" ARG3 "" ARG5

1. Arguments are separated by spaces.
2. Arguments may be quoted.
3. Leading and trailing spaces around an argument are ignored. Spaces within a quoted argument are allowed.
4. The first argument passed to main is the program name.
5. A maximum number of 10 arguments (including the program name) are supported.

7.2 Program return code

The program return code (low byte) is passed back to BASIC by use of the ST variable.

7.3 Using extended memory

The extended memory at $9000 of the CBM 8x96 may be added to the heap by using the following code:

    /* Check for the existence of RAM */
    if (PEEK(0x9000) == POKE(0x9000, PEEK(0x9000)+1)) {
        /* Add it to the heap */
        _heapadd ((void *) 0x9000, 0x2000);
    }