Apparatus for performing packed shift operations

US6631389B2 · kind B2 · utility

Assignee

• Intel Corporation · US

Inventors

• Derrick C. Lin · San Mateo, US
• Punit Minocha · Sunnyvale, US
• Alexander Peleg · Haifa, IL
• Yaakov Yaari · Haifa, IL
• Millind Mittal · Palo Alto, US
• Larry M. Mennemeier · Ramona, US
• Benny Eitan · Haifa, IL

Key dates

• Filing date: Dec 22, 2000
• Grant date: Oct 7, 2003
• Expiry date: Dec 22, 2020

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F7/49994
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

An apparatus for performing a shift operation on a packed data element having a multiple values. The apparatus having multiple muxes, each of the multiple muxes having a first input, a second input, a select input and an output. Each of the multiple bits that represent a shifted packed intermediate result on a first bus is coupled to the corresponding first input. Each of the multiple bits representing a replacement bit for one of the multiple values is coupled to a corresponding second input. Each of the multiple bits driven by a correction circuit is coupled to a corresponding select input. Each output corresponds to a bit of a shifted packed result.