. . . "FIG. 6A is a table showing how the combinations of output and input controls, as shown in the first two columns accomplish the shift transformation in terms of a shift of adesired number of places.Referring back to FIG. 6, eight memory units 180 through 194 are illustrated, each having four output gate connections numbered 0, 1, 2, 3, and two input gate connections numbered 0, 1." .