Implementation of Special Function Unit for Vertex Shader Processor Using Hybrid Number System

The world of 3D graphic computing has undergone a revolution in the recent past, making devices more computationally intensive, providing high-end imaging to the user. The OpenGL ES Standard documents the requirements of graphic processing unit. A prime feature of this standard is a special function...

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Bibliographic Details
Published in:Journal of computer networks and communications 2014-01, Vol.2014 (2014), p.1-7
Main Authors: Sivanantham, S., Vasishta, Swati, Harsha, P., Agarwal, Avni
Format: Article
Language:English
Subjects:
Application programming interface
Computation
Computers
Devices
Embedded systems
Error analysis
Hybrid systems
Imaging
Mathematical analysis
Mathematical models
Mean square errors
Number systems
Reporting requirements
Three dimensional
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Summary:The world of 3D graphic computing has undergone a revolution in the recent past, making devices more computationally intensive, providing high-end imaging to the user. The OpenGL ES Standard documents the requirements of graphic processing unit. A prime feature of this standard is a special function unit (SFU), which performs all the required mathematical computations on the vertex information corresponding to the image. This paper presents a low-cost, high-performance SFU architecture with improved speed and reduced area. Hybrid number system is employed here in order to reduce the complexity of operations by suitably switching between logarithmic number system (LNS) and binary number system (BNS). In this work, reduction of area and a higher operating frequency are achieved with almost the same power consumption as that of the existing implementations.
ISSN:2090-7141
2090-715X
DOI:10.1155/2014/890354