Apparatus and method using different size rename registers...

Electrical computers and digital processing systems: processing – Dynamic instruction dependency checking – monitoring or... – Scoreboarding – reservation station – or aliasing

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C712S216000

Reexamination Certificate

active

07428631

ABSTRACT:
An apparatus and method are provided for renaming a logical register for which bit accesses of varying lengths are permitted, such as a predicate register. Rename logic supports renaming for both partial-bit accesses and bulk-bit accesses to bits of the register. Rename logic utilizes a rename map table associated with the logical register to be renamed and also includes a plurality of physical rename registers. They physical rename registers include a set of skinny physical rename registers to be used for renaming for partial-bit writes. The physical rename registers also include a set of fat physical rename registers to be used for renaming for bulk-bit writes. Additional sizes of physical rename registers may also be employed. The entries of the single physical rename map table may point to either fat or skinny physical rename registers.

REFERENCES:
patent: 5689720 (1997-11-01), Nguyen
patent: 5974535 (1999-10-01), Peng et al.
patent: 6047369 (2000-04-01), Colwell et al.
patent: 6279102 (2001-08-01), Morrison
patent: 6393546 (2002-05-01), Witt et al.
patent: 6393552 (2002-05-01), Eickemeyer et al.
Intel Architecture Software Developer's Manual vol. 2: Instruction Set Reference, Intel, 1999.
Joseph E. Tendler, et al., “IBM eserver: Power4 System Microarchitecture”, White Paper, Oct. 2001, available at http://www-03.ibm.com/servers/eserver/pseries/hardware/whitepapers/power4.pdf.
Mitch Alsup, Web Posting dated Mar. 1, 2004, available at http://groups.google.com/group/comp.arch/browse—thread/thread/cb71c5bb39b66c86/Oca82abed7eb94a6?Ink=st&q=&rnum=1&hI=en#0ca82abed7eb94a6.
International Search Report for PCT/US2004/023235 Mailed Dec. 22, 2005.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Apparatus and method using different size rename registers... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method using different size rename registers..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method using different size rename registers... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3981794

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.