PROCESSING ELEMENT(PE) STRUCTURE FORMING FLOATING POINT-RECONFIGURABLE ARRAY(FP-RA) AND FP-RA CONTROL CIRCUIT FOR CONTROLLING THE SAME FP-RA

摘要

A processing element structure forming FP-RA(Floating Point-Reconfigurable Array) and FP-RA control circuit for controlling the same FP-RA are provided to reduce a usage of memory by using a PE structure for floating point arithmetic. A PE(Processing Element) structure forming FP-RA(Floating Point-Reconfigurable Array) and FP-RA control circuit for controlling the same FP-RA comprise following components. An ALU(Arithmetic Logic Unit)(122) is inputted two operand inputs and performs an operation. The ALU receives a single output from each of two MUX(124a,124b). A shifter(126) performs a shift operation to the results of the ALU. A temporary register stores an intermediate result of the ALU and an intermediate result of the shifter. An output register(127) stores a final result of the ALU and a final result of the shifter. The PE structure has a data path between the above components for floating point arithmetic.