A low-error and Rom-free logarithmic arithmetic unit for embedded 3D graphics applications

Tsung Ching Lin, Shin Kai Chen, Chih-Wei Liu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

Abstract

As the evolution of smart phone, 3D graphics become more and more important in mobile computing systems. Within 3D graphics, logarithmic arithmetic is usually utilized to simplify multiplication, division, and power operations. In this paper, we propose a low-error and Rom-free logarithmic arithmetic unit for 3D graphics applications. The logarithmic arithmetic unit applies non-uniform regional linear interpolation and compensation method for logarithmic converters. According to experiment results, proposed 2-region logarithmic converter reduces 48.0% error range and 42.1% percent error. 21.6% area and 13.8% power consumption are gained.

Original languageEnglish
Title of host publication2013 International Symposium on VLSI Design, Automation, and Test, VLSI-DAT 2013
DOIs
StatePublished - 15 Aug 2013
Event2013 International Symposium on VLSI Design, Automation, and Test, VLSI-DAT 2013 - Hsinchu, Taiwan
Duration: 22 Apr 201324 Apr 2013

Publication series

Name2013 International Symposium on VLSI Design, Automation, and Test, VLSI-DAT 2013

Conference

Conference2013 International Symposium on VLSI Design, Automation, and Test, VLSI-DAT 2013
CountryTaiwan
CityHsinchu
Period22/04/1324/04/13

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