1. A method of operating an electronic computer processor having a plurality of ALU's which may be operated in combination to increase their effective word length comprising the steps of: (a) synchronizing two or more of said ALU's; (b) connecting two or more of said ALU's according to a field in a single instruction word, whereby each group of connected ALU's and each isolated ALU define a segment having a data word length equal to the combined word length of each ALU in said segment; (c) entering a separate operation code and a separate operand instruction for each of said ALU's, said operation codes and said operand instructions being contained in a field in said single instruction word; (d) generating a local status output for each of said ALU's; (e) converting each of said local status outputs to a binary status bit; (f) resolving said binary status bits into a single-bit condition code; (g) selecting a common, next instruction word address for said ALU's based upon a status of a condition enable code which directs whether said selection is to be made unconditionally or whether said selection is to be made conditioned upon a status of said single-bit condition code.