Multi-function permutation switch for rotating and manipulating an order of bits of an input data byte in either cyclic or non-cyclic mode
November 28, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3916388 Method and processor having bit-addressable scratch pad memory Data format converting apparatus for use in a digital data processor Operand alignment controls for VFL instructions Data processing system with data cross-block-detection feature Multichip data shifting system Mechanism for implementing one machine cycle executable mask and rotate instructions in a primitive instruction set computing system Memory control system Pipelined decimal character execution unit Data processing apparatus for processing operand store conflict InventorsApplicationNo. 906729 filed on 06/30/1992US Classes:712/223Logic operation instruction processingExaminersPrimary: Lim, KrisnaAttorney, Agent or FirmForeign Patent References
International ClassG06F 009/315AbstractIn a digital computer system both rotation of bits in a data byte and rotation in combination with additional manipulation, a multifunction permutation switch, in a cyclic mode of operation, connects the input bit lines to the output bit lines so that the sequence of input bits are maintained on the output bit lines when the bits on the input lines are considered as arranged in a circle, and in a non-cyclic mode of operation, connects the input bit lines to the output bit lines in a manner to execute gather operations and spread operations.Other References
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