Table-Lookup/Interpolation Function Generation for Fixed-Point Digital Computations

• Published in: IEEE transactions on computers Vol. C-18; no. 8; pp. 745 - 749
• Main Authors: Aus, H.M., Korn, G.A.
• Format: Journal Article
• Language: English
• Published: IEEE 01.08.1969
• Subjects: Fixed-point computation; function generator; simulation; sine-cosine generator; table-lookup

For very fast function generation with small fixed-point digital computers, the n-bit argument word x is split into an N-bit word representing the breakpoint abscissa Xi for table-lookup by indirect addressing, and an n-N bit word representing the interpolation difference X-Xi. The complete procedur...