===== Register value ======

==== r( deviceno, registerno ) ====

Return the current value of a register.

=== Description ===

<code>r( deviceno, registerno )</code>

This function returns the current value of a given register.

=== Parameters ===

| ''deviceno'' | Device number (1 - 40) |
| ''registerno'' | Register number on the device (1 - 150) |

=== Return value ===

Returns the current value of the register.

=== Example usage ===

<code>r(3,14)</code>

Returns the value of register 14 on device 3.