External memory accessing system

Details External memory accessing system External memory accessing system

1990-01-30

1993-05-11

Dixon, Joseph L.

Boots, shoes, and leggings

395425, 364DIG1, G06F 1200, G06F 1210, G06F 934

Patent

active

052108414

ABSTRACT:
A new and improved external memory accessing system for use in a microprocessor. The system includes a physical address cache for storing a plurality of entries including register numbers and corresponding translated external memory address locations which were used for execution of previous load instructions. The system further includes means responsive to a current load instruction for determining if the address of the register specified in the load instruction is within the physical address cache and means for conveying to the external memory, at the beginning of the execution stage of the load instruction, a previously translated external memory physical address corresponding to a specified register stored in the physical address cache. Also disclosed is a new and improved address generator for generating a new translated external memory physical address which is conveyed to the external memory and to the physical address cache for updating the physical address cache.

REFERENCES:
patent: 4734852 (1988-03-01), Johnson et al.
patent: 4777587 (1988-10-01), Case et al.
patent: 4926323 (1990-05-01), Baror et al.
patent: 5041968 (1991-08-01), Yamaguchi
patent: 5117493 (1992-05-01), Jensen

Affiliated with

Also associated with

Rating

External memory accessing system does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1357450