CORDIC trigonometric algorithms for processing of arithmetic operations - involves iterative computation of XYZ values with data word-width of N bits using adder and subtractor units

摘要

A so called CORDIC trigonometric computing technique provides a simplified means of processing of arithmetic functions. The process uses algorithms performing iterative operations and has adder/subtractor blocks (X, Y, Z). One block (Z) has n/3 adder units, where 'n' is the number of adders previously utilised. A code conversion process is used (U) that is in table form. In a rotation mode, a specific number of bits are used (delta, sigma). In a vector mode, values are fed to an adder/subtractor (S, A). ADVANTAGE - Reduced hardware requiremnt.