BigSky - an on-line arithmetic design tool for FPGAs

We present a project to design, implement and use online arithmetic (M.D. Ercegovac and T. Lang, 1988) modules for reconfigurable hardware suitable for signal processing tasks. The project involves: (i) design, implementation and evaluation of a library of parameterized macros for primitive and composite/variable precision arithmetic (Underground); (ii) development of a high-level design environment for facilitating design of FPGA-oriented arithmetic-intensive structures (BigSky); and (iii) experiments with the system.