Title :
Compressed symmetric tables for accurate function approximation of reciprocals
Author :
Stine, James E. ; Naresh, Nitin
Author_Institution :
Dept. of Electr. & Comput. Eng., Oklahoma State Univ., Stillwater, OK
Abstract :
This paper presents a high-speed method for accurate function approximations of reciprocals. This method employs parallel table lookups followed by multi-operand addition. Similar to previous methods, it takes advantage of leading zeros and symmetry in the table entries to reduce the table sizes. This method, although similar to previous methods, achieves lower memory sizes without having to increase the number of operands in the multi-operand addition
Keywords :
VLSI; digital arithmetic; function approximation; table lookup; VLSI; compressed symmetric tables; computer arithmetic; function approximation; multioperand addition; table lookups; Delay; Digital arithmetic; Function approximation; Hardware; Iterative algorithms; Large-scale systems; Microprocessors; Random access memory; Table lookup; Very large scale integration; VLSI; computer arithmetic;
Conference_Titel :
Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on
Conference_Location :
Island of Kos
Print_ISBN :
0-7803-9389-9
DOI :
10.1109/ISCAS.2006.1692706
