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Special computers - graphics robotics

: Yang, B.; Böhme, J.F.; Schmidt, G.; Hahn, H.; Hosticka, B.J.; Timmermann, D.; Zimmer, G.

Proebster, W.E. ; Institute of Electrical and Electronics Engineers -IEEE-:
VLSI and computers. Proceedings of the 1st International Conference on Computer Technology, Systems and Applications. COMPEURO '87
Washington/D.C.: IEEE Computer Society Press, 1987
ISBN: 0-8186-0773-4
S.727-730 : Tab.,Lit.
International Conference on Computer Technology, Systems and Applications <1, 1987, Hamburg>
Fraunhofer IMS ()

This paper describes a special processor based on the CORDIC algorithm, which can perform a variety of trigonometric, hyperbolic and square-root functions as well as multiplications and divisions. The paper suggests an efficient processing element for pipelined realizations of three-dimensional transformations occuring in computer graphics and robotics. Modified floating-point arithmetic is used to avoid convergence problems and to guarantee high accuracy and an enlarged data range with only a moderate overhead of hardware cost. (IMS)