COM activates or deactivates the communications interrupt routine.
These statements must be initialised with an ON COM statement.
10 ON COM GOSUB 1000
20 COM ON
1000 REM TRAP ROUTINE
1010 LINPUT A$ ...
These statements decide what action is taken on receiving communications. The interrupt occurs on the first character.
- COM ON
- When executed, allows trapping of communications by the ON COM statement. If the previous state was COM OFF then the buffer is cleared by this statement.
- COM OFF
- The trapping is deactivated and all communications interrupts are ignored.
- COM STOP
- Communications interrupts are noted but not acted upon by the ON COM statement until a COM ON is executed.