Data processor

Details Data processor Data processor

2006-10-24

2006-10-24

Coleman, Eric (Department: 2183)

Electrical computers and digital processing systems: processing

Processing architecture

Data driven or demand driven processor

Reexamination Certificate

active

07127589

ABSTRACT:
A data processor capable of executing sequential processing efficiently while retaining the advantages of a prior art data-driven processor. The data processor includes: an instruction fetch unit which fetches a data-driven instruction or a control-driven instruction from an instruction memory based on an input packet or a program counter; an instruction decode unit which decodes the issued instruction and, in the case of the control-driven instruction, thereafter accesses a register and performs register renaming if a data hazard is detected; a firing control unit which stores the decoded instruction in a matching memory to wait therein, and which selects one of the ready-to-fire instructions and fires the selected instruction; an execution unit which performs an operation specified by the fired instruction and, in the case of the data-driven instruction, transfers an operation result to the instruction fetch unit, or in the case of the control-driven instruction, forwards the operation result to the firing control unit; and a write back unit which writes the operation result to a register.

REFERENCES:
patent: 5511215 (1996-04-01), Terasaka et al.
patent: 5799167 (1998-08-01), Lesartre
patent: 5930491 (1999-07-01), Hilgendorf et al.
patent: 5964866 (1999-10-01), Durham et al.
patent: 6526500 (2003-02-01), Yumoto et al.
patent: 6609189 (2003-08-01), Kuszmaul et al.
patent: 6629271 (2003-09-01), Lee et al.
Japanese Office Action dated Mar. 7, 2006 of Application No. 2003-343324.
T. Takahashi et al., “A Multi-Execution Pipeline Based on a Data-Driven Processor with Control-Driven Scheme, ” IPSJ SIG Notes, Mar. 11, 2003, vol. 2003, No. 27 (ARC-152), pp. 151-156.
K. Yasumura et al., “An Instruction Set Architecture of a Data-Driven Processor for Multimedia Networking Applications,” IPSJ SIG Notes, Mar. 11, 2003, vol. 2003, No. 27 (ARC-152), pp. 157-162.

Affiliated with

Also associated with

Rating

Data processor does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3679817