Common subexpression elimination algorithm for low-cost multiplierless implementation of matrix multipliers
M.D. Macleod, Andrew Graham Dempster · Electronics Letters · 2004
The design of multiplierless implementations (which use only adders, subtracters and binary shifts) of fixed-point matrix multipliers is considered and a new common subexpression elimination method is described that recursively extracts signed two-term common subexpressions. Examples are given that show that the resulting adder-cost is significantly lower than for existing algorithms.