Prefetching exception vectors by early lookup exception...

Details Prefetching exception vectors by early lookup exception... Prefetching exception vectors by early lookup exception...

2004-03-12

2009-11-03

Chan, Eddie P (Department: 2183)

Electrical computers and digital processing systems: processing

Processing control

Branching

Reexamination Certificate

active

07613911

ABSTRACT:
An integrated circuit processor core4is provided with an instruction pipeline20along which program instructions advance. When an exception condition occurs part way through execution of a particular program instruction, then a prefetch of the exception handling program instruction corresponding to that exception is initiated before the currently executing program instruction has completed. In this way the exception handling program instruction is more rapidly available to start the exception processing. The early prefetch may involve performing a lookup in a cache memory6and any necessary linefill upon a miss. In addition, the exception handling program instruction amy also be fed into the instruction pipeline20before an instruction boundary is reached.

REFERENCES:
patent: 5481685 (1996-01-01), Nguyen et al.
patent: 5784602 (1998-07-01), Glass et al.
patent: 5966529 (1999-10-01), Sollars
patent: 6240531 (2001-05-01), Spilo et al.
patent: 6282636 (2001-08-01), Yeh et al.
patent: 6978350 (2005-12-01), Birk et al.

Affiliated with

Also associated with

Rating

Prefetching exception vectors by early lookup exception... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Prefetching exception vectors by early lookup exception..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Prefetching exception vectors by early lookup exception... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4056275