Int E0 Fn 002E  - Pcrobots V1.41 - "register_y" - Select Automatic Y Posi  [g]

   AX = 002Eh
   BX:CX -> Y word variable

Return: AX = status (0001h OK, 0000h problem with address)

Note:  after this call, PCROBOTS will automatically update the specified
     word whenever the robot moves

See Also: AX=002Dh