Sets the 8 switches in the UPSI (User Program Switch Indicator) byte.
Syntax:
*---------------------------------------------------------------
* UPSI OPERANDS
* // UPSI xxxxxxxx
*------------------------------------------------------------------
Where:
- xxxxxxxx
- 1 to 8 characters corresponding to the bit switches. Valid values for each character are:
- 0
- Set switch to off.
- 1
- Set switch to on.
- X
- Leave unchanged.
