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Paper Abstract and Keywords
Presentation 2008-03-07 09:40
Enhancing Multimedia Processing by Wave-Pipelining a Multifunctional Execution Unit
Kazunori Noda, Atuko Yokoyama, Hiroki Takeda, Masa-aki Fukase, Tomoaki Sato (Hirosaki Univ.) VLD2007-157 ICD2007-180 Link to ES Tech. Rep. Archives: ICD2007-180
Abstract (in Japanese) (See Japanese page) 
(in English) A multimedia mobile processor HCgorilla developed for ubiquitous network was built in Java CPU, cipher logic, and floating point arithmetic units. HCgorilla needed instruction scheduling, because the execution stage of HCgorilla had integer and floating point arithmetic pipelines that were physically separated and had different latencies. We describe, in this paper, the solution of this issue and the improvement of HCgorilla. Specifically, the execution stage is made a multifunctional hardware unit by merging the physical separation of arithmetic pipelines. Then, the multifunctional execution unit is wave-pipelined. Multifunctional wave-pipelines realize wide-range dynamic ILP (instruction level parallelism) at a rate higher than regular superscalar architecture.
Keyword (in Japanese) (See Japanese page) 
(in English) Ubiquitous / Multimedia / Multifunctional execution unit / Wave-pipeline / / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 508, VLD2007-157, pp. 7-12, March 2008.
Paper # VLD2007-157 
Date of Issue 2008-02-29 (VLD, ICD) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF VLD2007-157 ICD2007-180 Link to ES Tech. Rep. Archives: ICD2007-180

Conference Information
Committee VLD ICD  
Conference Date 2008-03-05 - 2008-03-07 
Place (in Japanese) (See Japanese page) 
Place (in English) TiRuRu 
Topics (in Japanese) (See Japanese page) 
Topics (in English) System-on-silicon design techniques and related VLSs 
Paper Information
Registration To VLD 
Conference Code 2008-03-VLD-ICD 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Enhancing Multimedia Processing by Wave-Pipelining a Multifunctional Execution Unit 
Sub Title (in English)  
Keyword(1) Ubiquitous  
Keyword(2) Multimedia  
Keyword(3) Multifunctional execution unit  
Keyword(4) Wave-pipeline  
1st Author's Name Kazunori Noda  
1st Author's Affiliation Hirosaki University (Hirosaki Univ.)
2nd Author's Name Atuko Yokoyama  
2nd Author's Affiliation Hirosaki University (Hirosaki Univ.)
3rd Author's Name Hiroki Takeda  
3rd Author's Affiliation Hirosaki University (Hirosaki Univ.)
4th Author's Name Masa-aki Fukase  
4th Author's Affiliation Hirosaki University (Hirosaki Univ.)
5th Author's Name Tomoaki Sato  
5th Author's Affiliation Hirosaki University (Hirosaki Univ.)
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Speaker Author-1 
Date Time 2008-03-07 09:40:00 
Presentation Time 25 minutes 
Registration for VLD 
Paper # VLD2007-157, ICD2007-180 
Volume (vol) vol.107 
Number (no) no.508(VLD), no.511(ICD) 
Page pp.7-12 
Date of Issue 2008-02-29 (VLD, ICD) 

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