Command
USB <index>
Description
User Booleans can be used to transfer information between the host and resident controller programs. The 100 element array [1..100] of booleans can be read and written from both sides. Providing a parameter performs a write. Providing just the index but no parameter performs a read. There is no established convention for how the values are used. Generally they provide parameters to resident controller routines and return results back. The size of the array is a constant inside the interpreter package that can be adjusted as required.
Escapes
If the array index is out of bounds a Parameter Out Of Range Escape Code will occcur.
Examples
The following list of commands assign and retrieve User Numbers and illustrate an error response to an index being out of bounds:
Related Topics