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

Syntax:

    #option volatile `bit`

This option ensure port setting are glitch-free.

Introduction:

#option volatile bit where bit is an IO bit, like PORTB.0 appended.

This will cause the compiler to set the bit without any glitches when copying a value from another variable, but will increase code size slightly.

Example:

    'Set chip model
    #chip 16f877a

    'Example command
    #option volatile portb.0

    dir portb.0 out

    do forever

      portb.0 = !portb.0

    loop