is added to x*. V will be cleared unless there is a carry from the ninth
bit of x* into the tenth (from the least significant end) or unless the tenth
bit of N is not zero.

NOTE
(a) In the case of the 114 instruction x* is first set equal to zero
and the shifts are single length without rounding.
(b) In all cases the sign bit of x* is ignored. The result in x*
is always positive except when there is a carry into the sign
bit as a result of adding one to x* after a right shift. V will
always be set if this happens.

11. NO OPERATION 123
	This instruction does not clear the carry flip-flop.


				W. R. Whittall