NDLI: A Universal Placement Technique of Compressed Instructions for Efficient Parallel Decompression

Content Provider	IEEE Xplore Digital Library
Author	Xiaoke Qin Mishra, P.
Copyright Year	1982
Abstract	Instruction compression is important in embedded system design since it reduces the code size (memory requirement) and thereby improves the overall area, power, and performance. Existing research in this field has explored two directions: efficient compression with slow decompression, or fast decompression at the cost of compression efficiency. This paper combines the advantages of both approaches by introducing a novel bitstream placement method. Our contribution in this paper is a novel compressed bitstream placement technique to support parallel decompression without sacrificing the compression efficiency. The proposed technique enables splitting a single bitstream (instruction binary) fetched from memory into multiple bitstreams, which are then fed into different decoders. As a result, multiple slow decoders can simultaneously work to produce the effect of high decode bandwidth. We prove that our approach is a close approximation of the optimal placement scheme. Our experimental results demonstrate that our approach can improve the decode bandwidth up to four times with minor impact (less than 3%) on the compression efficiency.
Sponsorship	IEEE Council on Electronic Design Automation IEEE Circuits and Systems Society
Starting Page	1224
Ending Page	1236
Page Count	13
File Size	458598
File Format	PDF
ISSN	02780070
Volume Number	28
Issue Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-08-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Decoding Bandwidth Chromium Embedded system Costs Hardware Engineering profession Information science Huffman coding Arithmetic memory Code compression decompression embedded systems
Content Type	Text
Resource Type	Article
Subject	Computer Graphics and Computer-Aided Design Electrical and Electronic Engineering Software

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