Division operation method, device, storage medium and electronic device
An operation method and a division technique, which are applied in the fields of storage media, electronic equipment, devices, and division operation methods, can solve the problems of many operation resources and long operation cycle, and achieve the advantages of reducing operation resources, shortening operation period, and improving the efficiency of division operation. Effect
Active Publication Date: 2022-07-15
BEIJING XIAOMI PINECONE ELECTRONICS CO LTD
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[0004] It can be seen that the division operation in the related art needs to constantly judge the size of the dividend and the divisor for the subtraction operation, the operation cycle is long, and the operation resources are consumed.
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[0068] The specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure, but not to limit the present disclosure.
[0069] figure 1 It is a division operation method shown according to an exemplary embodiment of the present disclosure. refer to figure 1 , the division operation method includes the following steps:
[0070] Step S101, determining the target constant with the smallest difference from the divisor in a preset look-up table.
[0071] Step S102: Calculate the inverse of the divisor according to the inverse of the target constant, the inverse of the square of the target constant, and the difference between the divisor and the target constant.
[0072] Step S103, determining the result of multiplying the reciprocal by the dividend as the result of the division operatio...
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The present disclosure relates to a division operation method, device, storage medium and electronic device, so as to reduce the computing resources of the division operation. The division operation method includes: determining a target constant with the smallest difference from the divisor in a preset look-up table, wherein the preset look-up table stores (N+1) obtained by dividing the preset interval into N sub-intervals number of constants, the reciprocals corresponding to the (N+1) constants, and the reciprocals of the squares corresponding to the (N+1) constants, where N is a positive integer greater than 1; according to the reciprocal of the target constant , the inverse of the square of the target constant, and the difference between the divisor minus the target constant, and the inverse of the divisor is calculated; the result of multiplying the inverse by the dividend is determined as the division result.
Description
technical field [0001] The present disclosure relates to the technical field of digital signal processing, and in particular, to a division operation method, an apparatus, a storage medium, and an electronic device. Background technique [0002] In the field of digital signal processing technology, most digital signal processing algorithms can be implemented by four basic operations of addition, subtraction, multiplication and division. Among them, the division operation is mainly realized in the following ways: [0003] Assuming that the dividend is n bits and the divisor is m bits, first shift the divisor to the left by n-m bits, and then compare the size of the dividend and the divisor: when the dividend is smaller than the divisor, move the dividend to the right by one bit and then compare the size with the dividend. When the dividend is greater than or equal to the divisor, subtract the divisor and the dividend, then calculate the subtraction result as a new divisor, a...
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IPC IPC(8): G06F7/487
CPCG06F7/4873
Inventor 许百成
Owner BEIJING XIAOMI PINECONE ELECTRONICS CO LTD