Computer system with debug facility

Details Computer system with debug facility Computer system with debug facility

2006-03-14

2006-03-14

Dildine, R. Stephen (Department: 2133)

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

Emulation

Of instruction

C712S227000, C712S244000, C714S038110

Reexamination Certificate

active

07013256

ABSTRACT:
A computer system for executing instructions having assigned guard indicators, comprises instruction supply circuitry, pipelined execution units for receiving instructions from the supply circuitry together with at least one guard indicator selected from a set of guard indicators, the execution unit including a master guard value store containing master values for the guard indicators, and circuitry for resolving the guard values in the execution pipeline and providing a signal to indicate whether the pipeline is committed to the execution of the instruction, and an emulator having watch circuitry for effecting a watch on selected instructions supplied to the execution pipeline and synchronising circuitry for correlating resolution of the guard indicator of each selected instruction with a program count for that instruction.

REFERENCES:
patent: 5404496 (1995-04-01), Burroughs et al.
patent: 5430862 (1995-07-01), Smith et al.
patent: 5544311 (1996-08-01), Harenberg et al.
patent: 5564041 (1996-10-01), Matsui et al.
patent: 5644703 (1997-07-01), Kurakazu et al.
patent: 5715440 (1998-02-01), Ohmura et al.
patent: 5752013 (1998-05-01), Christensen et al.
patent: 5754839 (1998-05-01), Pardo et al.
patent: 5857094 (1999-01-01), Nemirovsky
patent: 2001/0005881 (2001-06-01), Cofler et al.
patent: 2001/0007125 (2001-07-01), Cofler et al.
patent: 2002/0023203 (2002-02-01), Cofler et al.
patent: 2002/0078329 (2002-06-01), Roth et al.
patent: 0 667 576 (1995-08-01), None
patent: 0 810 519 (1997-12-01), None
patent: 0 849 674 (1998-06-01), None
patent: 0 869 434 (1998-10-01), None
patent: 0 943 995 (1999-09-01), None
Search Report from the British Patent Office for British Application No. 9930589.8, filed Dec. 23, 1999.
Standard Search Report from related British application No. 9930588.0, filed Dec. 23, 1999.
Standard Search Report from related British Application No. 9930590.6, filed Dec. 23, 1999.
Standard Search Report in connection with British counterpart of U.S. Appl. No. 09/748,785.
Standard Search Report in connection with British counterpart of U.S. Appl. No. 09/748,762.
Standard Serach Report in connection with British counterpart of U.S. Appl. No. 09/748,763.
Standard Search Report in connection with British counterpart of U.S. Appl. No. 09/748,077.

Affiliated with

Also associated with

Rating

Computer system with debug facility does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Computer system with debug facility, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Computer system with debug facility will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3604424