Stalling CPU pipeline to prevent corruption in trace while...

Details Stalling CPU pipeline to prevent corruption in trace while... Stalling CPU pipeline to prevent corruption in trace while...

2006-07-12

2008-12-09

Shah, Kamini S (Department: 2128)

Data processing: structural design, modeling, simulation, and em

Emulation

C703S016000, C703S026000, C703S027000, C716S030000, C716S030000, C716S030000

Reexamination Certificate

active

07464018

ABSTRACT:
A method of preventing trace data first-in-first-out buffer overflow in a pipelined data processor stops new instructions when a trace data first-in-first-out buffer is in danger of overflowing. The method also stalls a predetermined number of pipeline stages in the pipeline ahead of the first pipeline stage. The trace data first-in-first-out buffer is emptied while the pipeline is stalled. On restart, the stalled pipeline stages are restarted ahead of re-enabling new instructions. Asynchronous trigger events received during the stall may be buffered and unrolled in order or merely stored and applied simultaneously on restart.

REFERENCES:
patent: 5970241 (1999-10-01), Deao et al.
patent: 6243836 (2001-06-01), Whalen
patent: 6321290 (2001-11-01), Yamashita
patent: 6467083 (2002-10-01), Yamashita
patent: 6615370 (2003-09-01), Edwards et al.
patent: 2002/0178405 (2002-11-01), McCullough et al.
patent: 2002/0184477 (2002-12-01), Swaine et al.
patent: 2003/0229823 (2003-12-01), Swaine et al.
patent: 2004/0102950 (2004-05-01), Agarwala et al.

Affiliated with

Also associated with

Rating

Stalling CPU pipeline to prevent corruption in trace while... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Stalling CPU pipeline to prevent corruption in trace while..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stalling CPU pipeline to prevent corruption in trace while... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4033363