66results about How to "Simple implementation logic" patented technology

The invention discloses a mask-based hybrid floating-point multiplication low-power-consumption control method . The method comprises the following steps: hardware automatically determines a hybrid floating point multiplication operation type, fills high bits of mantissa of a standard floating point multiplier and a multiplicand with all zero, and enables the floating point multiplier and the multiplicand to be the same as the input bit width of a multiplex fixed-point hardware multiplier; and for floating point multiplication operation, a partial product is obtained from the filled floating point multiplier and multiplicand according to a preset multiplication encoding rule and a symbol extension rule, an invalid mantissa is moved to a high order, and the invalid mantissa is controlled not to participate in partial product compression summation operation by adopting a mask so as to save logic power consumption. The invention further discloses a hybrid floating point multiplication low-power-consumption control device based on the mask. The method supports multiplexing of fixed-point multiplication hardware to realize low-power-consumption control of floating-point multiplication,automatic detection of floating-point multiplication operation by the hardware and control of high-order expansion bit coding based on masks, and has the advantages of low hardware overhead, easinessin logic implementation, simplicity in power consumption control and the like.