FIG. 6 is a schematic view of a structure of a prior barrel shifter circuit. FIG. 7 is an explanatory view of the circuit operation in FIG. 6. DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention is explained referring to the drawings. FIG. 1 is a block diagram representing an ...
FIG. 2 illustrates the 8 general types of operations performable by the barrel shifter of the present invention; FIG. 3 illustrates the manner in which FIGS. 3A, FIG. 3B, FIG. 3C and FIG. 3D fit together; FIGS. 3A, 3B, 3C and 3D are a detailed circuit diagram of the data path fo...
FIG. 16 is a flow diagram of illustrative steps involved in implementing a crossbar and barrel shifter in accordance with one embodiment of the invention; FIG. 17 is a simplified block diagram of an illustrative system employing circuitry in accordance with one embodiment of the invention; and ...
A conventional round-robin circuit may be implemented as a simple N-bit barrel shifter, wherein N is the number of requestors and one bit corresponds to each of the N requesters. One bit of the barrel shifter is initially true, and the single true bit is rotated around the barrel ...