Bus sourcing and shifter control of a central processing unit

Details Bus sourcing and shifter control of a central processing unit Bus sourcing and shifter control of a central processing unit

1981-12-01

1984-05-29

Chan, Eddie P.

Boots, shoes, and leggings

G06F 912, G06F 920

Patent

active

044518838

ABSTRACT:
A data processing system includes a memory subsystem for storing operands and instructions and a central processing unit (CPU) for manipulating the operands by executing the instructions. The CPU includes a control store for generating signals for controlling the CPU operation. Shifters made up of multiplexers shift operands between an outer bus and a write bus in response to control store signals. The multiplexers shift the operands left or right 1, 2 or 4-bit positions including open shifts and circular shifts and also perform byte position shifting and twinning.

REFERENCES:
patent: 4189768 (1980-02-01), Liptay et al.
patent: 4205372 (1980-05-01), Gruner
patent: 4206503 (1980-06-01), Woods et al.
patent: 4219874 (1980-08-01), Gusev et al.
patent: 4258419 (1981-03-01), Blahut et al.
patent: 4268909 (1981-05-01), Kindell et al.

Affiliated with

Also associated with

Rating

Bus sourcing and shifter control of a central processing unit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bus sourcing and shifter control of a central processing unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bus sourcing and shifter control of a central processing unit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1401125