Device for detecting an overlap of operands to be accessed

Details Device for detecting an overlap of operands to be accessed Device for detecting an overlap of operands to be accessed

1984-06-07

1987-06-02

Heckler, Thomas M.

Boots, shoes, and leggings

G06F 938

Patent

active

046708367

ABSTRACT:
In order to guarantee the instruction execution sequence in a pipeline control data processing system, the present overlap detector device detects whether or not the operands overlap each other in access width units by comparing the store address specified by a store instruction with the fetch address contained in a fetch instruction following the store instruction. Moreover, the overlap detector device detects whether or not an overlap occurs in an area of the access width based on the store mark, the address in the access width unit stored in the fetch address, and the fetch data length. The overlap detector device detects the presence or absence of an overlap according to the results of operations for detecting these two overlap conditions.

REFERENCES:
patent: 3728692 (1973-04-01), Fennel, Jr.
patent: 4085450 (1978-04-01), Tulpule
patent: 4251859 (1981-02-01), Momose et al.
patent: 4398245 (1983-08-01), Fujita
patent: 4454578 (1984-06-01), Matsumoto et al.

Affiliated with

Also associated with

Rating

Device for detecting an overlap of operands to be accessed does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device for detecting an overlap of operands to be accessed, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for detecting an overlap of operands to be accessed will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-617585