Instruction pointer limits in processor that performs speculativ

Details Instruction pointer limits in processor that performs speculativ Instruction pointer limits in processor that performs speculativ

1996-09-30

1998-04-14

Harvey, Jack B.

395800, 395586, G06F 938, G06F 930

Patent

active

057403937

ABSTRACT:
A method for enforcing an instruction pointer limit in a processor, wherein a retire circuit determines a speculative instruction pointer for a set of retiring instruction during a retirement operation. The retire circuit also determines whether each speculative instruction pointer exceeds the instruction pointer limit. The retire circuit commits the result data value of each instruction to the architectural state if the speculative instruction pointer for the result data value does not exceed the instruction pointer limit.

REFERENCES:
patent: 4858105 (1989-08-01), Kuriyama et al.
patent: 5067069 (1991-11-01), Fite et al.
patent: 5129067 (1992-07-01), Johnson
patent: 5136697 (1992-08-01), Johnson
patent: 5155817 (1992-10-01), Kishigami et al.
patent: 5204953 (1993-04-01), Dixit
patent: 5303356 (1994-04-01), Vassiliadis et al.
patent: 5345569 (1994-09-01), Tran
patent: 5355457 (1994-10-01), Shebanow et al.
patent: 5367650 (1994-11-01), Sharangpani et al.
patent: 5421020 (1995-05-01), Levitan
patent: 5434987 (1995-07-01), Abramson et al.
patent: 5450560 (1995-09-01), Bridges et al.
"Superscalar Microprocessor Design", Mike Johnson; Prentice Hall 1991; pp. 87 and 89.
V. Popescu, et al., "The Metaflow Architecture", IEEE Micro, 1991, pp. 10-13, and 63-73.
Mike Johnson, "Superscalar Microprocessor Design", Prentice Hall, 1991.

Affiliated with

Also associated with

Rating

Instruction pointer limits in processor that performs speculativ does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Instruction pointer limits in processor that performs speculativ, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Instruction pointer limits in processor that performs speculativ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-646490