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A mixed signal rotator/shifter for 8GHz Intel® Pentium® 4 integer core

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3 Author(s)
Singh, A.P. ; Intel Corp., Hillsboro, OR, USA ; Barany, M. ; Deleganes, D.J.

A novel mixed signal 32-bit rotator/shifter circuit design enabling ultra-short latency Intel® Netburst™ rotate and shift instructions is described. Compared to previous generation Intel® Pentium® 4 processor designs, this implementation cuts Rotate/Shift latency and throughput by 75% while adding significant frequency headroom. The circuit manufactured on Intel's 90nm process confirms a significant boost in integer performance.

Published in:

VLSI Circuits, 2004. Digest of Technical Papers. 2004 Symposium on

Date of Conference:

17-19 June 2004