Presentation 2017-05-22
A proposal of Bit Serial Arithmetic Units for Arbitrary Precision
Tomonori Miura, Motoki Amagasaki, Masahiro Iida, Morihiro Kuga, Toshinori Sueyoshi,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In this paper,we propose a bit serial arithmetic unit for arbitrary precision.It calculates 1 digit ev- ery cycle from the most significant bit.And when necessary calculation precision is obtained,the calculation is ended.Therefore,there is no need to perform unnecessary calculation,and this may lead to the improvement of throughput and the reduction of power consumption.Also,since 1-bit width arithmetic unit is used without using a general 32-bit or 64-bit width one,the area is small.At first,we describe algorithms of four arithmetic operations that can calculate in arbitrary precision,and then we implemented it in Verilog HDL.Finally, using the MAC(Multiply-Accumulate) operation that is often used in digital signal processing,we evaluated throughput,power consumption and area.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Bit serial operation / Gray Code / Arbitrary Precision
Paper # RECONF2017-8
Date of Issue 2017-05-15 (RECONF)

Conference Information
Committee RECONF / CPSY / DC / IPSJ-ARC
Conference Date 2017/5/22(3days)
Place (in Japanese) (See Japanese page)
Place (in English) Noboribetsu-Onsen Dai-ichi-Takimoto-Kan
Topics (in Japanese) (See Japanese page)
Topics (in English) HotSPA2017: Reconfigurable System, Dependable Computing System, and General Topics
Chair Minoru Watanabe(Shizuoka Univ.) / Yasuhiko Nakashima(NAIST) / Michiko Inoue(NAIST)
Vice Chair Masato Motomura(Hokkaido Univ.) / Yuichiro Shibata(Nagasaki Univ.) / Koji Nakano(Hiroshima Univ.) / Hidetsugu Irie(Univ. of Tokyo) / Satoshi Fukumoto(Tokyo Metropolitan Univ.)
Secretary Masato Motomura(Univ. of Tsukuba) / Yuichiro Shibata(Hiroshima City Univ.) / Koji Nakano(Fujitsu Labs.) / Hidetsugu Irie(NII) / Satoshi Fukumoto(Kyoto Sangyo Univ.) / (Tokyo Inst. of Tech.)
Assistant Takefumi Miyoshi(e-trees.Japan) / Yuuki Kobayashi(NEC) / Takeshi Ohkawa(Utsunomiya Univ.) / Shinya Takameda(Hokkaido Univ.)

Paper Information
Registration To Technical Committee on Reconfigurable Systems / Technical Committee on Computer Systems / Technical Committee on Dependable Computing / Special Interest Group on System Architecture
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A proposal of Bit Serial Arithmetic Units for Arbitrary Precision
Sub Title (in English)
Keyword(1) Bit serial operation
Keyword(2) Gray Code
Keyword(3) Arbitrary Precision
1st Author's Name Tomonori Miura
1st Author's Affiliation Kumamoto University(Kumamoto Univ.)
2nd Author's Name Motoki Amagasaki
2nd Author's Affiliation Kumamoto University(Kumamoto Univ.)
3rd Author's Name Masahiro Iida
3rd Author's Affiliation Kumamoto University(Kumamoto Univ.)
4th Author's Name Morihiro Kuga
4th Author's Affiliation Kumamoto University(Kumamoto Univ.)
5th Author's Name Toshinori Sueyoshi
5th Author's Affiliation Kumamoto University(Kumamoto Univ.)
Date 2017-05-22
Paper # RECONF2017-8
Volume (vol) vol.117
Number (no) RECONF-46
Page pp.pp.37-41(RECONF),
#Pages 5
Date of Issue 2017-05-15 (RECONF)