04569016 is referenced by 126 patents and cites 5 patents.

A mechanism for performing fast and efficient full shift, merge, insert and bit alignment functions within one operating machine cycle of a host primitive instructions set computing system. In general, the circuitry performs a ring shift under control of a mask. The circuitry further combines essentially parallel rotate and mask and merge functions all executable in one machine cycle. The circuitry further allows the provision of powerful bit, digit, and bit rotate with mask instructions which are particularly useful primitive operations for decimal packing and unpacking functions as well as for implementing floating point preshifting and normalization functions.

Title
Mechanism for implementing one machine cycle executable mask and rotate instructions in a primitive instruction set computing system
Application Number
6/509836
Publication Number
4569016
Application Date
June 30, 1983
Publication Date
February 4, 1986
Inventor
George Radin
Piermont
NY, US
Peter W Markstein
Yorktown Heights
NY, US
Hsieh T Hao
Chappaqua
NY, US
Agent
Roy R Schlemmer
Assignee
International Business Machines Corporation
NY, US
IPC
G06F 9/00
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