gosub - Anobium/Great-Cow-BASIC-Help GitHub Wiki

Gosub

Syntax:

    Gosub label

Command Availability:

Available on all microcontrollers.

Explanation:

The Gosub command is used to jump to a label as a subroutine, in a similar way to Goto. The difference is that Return can then be used to return to the line of code after the Goto.

NOTE

Gosub should NOT be used if it can be avoided. It is not required to call a subroutine that has been defined using Sub, just write the name of the subroutine.

Example:

    'This program will flash an LED on portb bit 0 and play a beep on
    'porta bit 4. until the microcontroller is turned off.

    #chip 16F628A, 4 'Change this to suit your circuit

    #define SOUNDOUT PORTA.4
    #define LIGHT PORTB.0
    Dir LIGHT Out

    Do
        'Flash Light
        PulseOut LIGHT, 1 s
        Wait 1 s
        'Beep
        Gosub PlayBeep
    Loop

    PlayBeep:
    Tone 200, 10
    Tone 100, 10
    Return

For more help, see Goto and Labels

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