Robert D Gowin, 546002 Parkwood Rd, Austin, TX 78735

5727177, Mar 10, 1998

Mar 29, 1996

8/623756

Brian D. McMinn - Buda TX
Robert D. Gowin - Austin TX

Advanced Micro Devices, Inc. - Sunnyvale CA

G06F 930

395394

A superscalar processor provides register renaming using a reorder buffer includes special registers for handling predefined special instructions that operate on an odd-width data word. The superscalar processor includes a reorder buffer which stores result data having a predetermined standard bit-width. One or more instructions that generally occur only occasionally have a result data width that is substantially larger than the standard bit-width. The reorder buffer stores data of the standard bit-width and the occasional large bit-width in a storage that includes a plurality of standard-width storage elements in a first-in-first-out FIFO reorder buffer queue and a separate buffer that is specifically allocated for storing an extended result element. An extended result element includes a portion of a large bit-width result in excess of the standard bit-width result size.