Proceedings of the 2018 International Conference on Transportation & Logistics, Information & Communication, Smart City (TLICSC 2018)

Hardware Implementation of High Precision Floating Point Transcend Function

Authors
Jun Zhang, Mingjiang Wang, Nanxin Hou
Corresponding Author
Jun Zhang
Available Online December 2018.
DOI
https://doi.org/10.2991/tlicsc-18.2018.6How to use a DOI?
Keywords
Floating point, transcendental function, CORDIC algorithm, pipeline architecture.
Abstract
In this paper, the combination of CORDIC algorithm and mathematical method is used to complete the implementation of 128-bit floating-point exponential function and logarithmic function. The implementation of exponential functions and logarithmic functions is involved in speech recognition, image processing, and radar detection, but the computational domain of [-6, 6] is completed in current hardware implementations. It is too narrow in practice. Here we use the CORDIC algorithm combined with the mathematical method to expand. In this design, the calculation domain of the logarithm function is 128 bits of all floating-point numbers and the calculation domain of the exponential function is [-8192, 8192]. The practicality of hardware implementation transcendental functions is improved by extending the computational domain. In the overall hardware architecture, based on the Xilinx ISE14.7 development environment, the Virtex7 development board, the combined maximum frequency can reach 353.189MHz.
Open Access
This is an open access article distributed under the CC BY-NC license.

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Proceedings
2018 International Conference on Transportation & Logistics, Information & Communication, Smart City (TLICSC 2018)
Part of series
Advances in Intelligent Systems Research
Publication Date
December 2018
ISBN
978-94-6252-621-1
ISSN
1951-6851
DOI
https://doi.org/10.2991/tlicsc-18.2018.6How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Jun Zhang
AU  - Mingjiang Wang
AU  - Nanxin Hou
PY  - 2018/12
DA  - 2018/12
TI  - Hardware Implementation of High Precision Floating Point Transcend Function
BT  - 2018 International Conference on Transportation & Logistics, Information & Communication, Smart City (TLICSC 2018)
PB  - Atlantis Press
SN  - 1951-6851
UR  - https://doi.org/10.2991/tlicsc-18.2018.6
DO  - https://doi.org/10.2991/tlicsc-18.2018.6
ID  - Zhang2018/12
ER  -