Adder/subtractor for signed number of centralized sequences based on probability calculation

A signed number and probability calculation technology, which is applied in calculation, instrumentation, electrical digital data processing, etc.

Active Publication Date: 2019-10-25
ZHONGBEI UNIV
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  • Abstract
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Problems solved by technology

[0014] The present invention is to solve the problem of how to provide a signed number adder / subtractor based on a concentrated sequence, and the present invention provides a signed number adder / subtractor based on a probability calculation concentrated sequence

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  • Adder/subtractor for signed number of centralized sequences based on probability calculation
  • Adder/subtractor for signed number of centralized sequences based on probability calculation
  • Adder/subtractor for signed number of centralized sequences based on probability calculation

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Embodiment Construction

[0076] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0077] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0078] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0079] see figure 2 Describe this embodiment, a signed number adder / subtractor based on a sequence of pro...

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Abstract

The invention discloses an adder/subtractor for the signed number of centralized sequences based on the probability calculation and belongs to the field of integrated centralized sequences. The invention aims to solve the problem of how to provide a signed adder/subtractor based on centralized sequences. The method is mainly used for carrying out addition or subtraction operation on two n + 1-bitbinary symbolic numbers, and one n + 1-bit binary symbolic number is composed of a one-bit symbolic bit SA and a number bit corresponding to an n-bit binary number A; the other (n + 1)-bit binary signed number is composed of a one-bit sign bit SB and a number bit corresponding to an n-bit binary number B; and the symbol determination module obtains an operation mode according to the received signbits SA and SB, and performs addition or subtraction operation on the two n + 1 binary signed numbers according to the determined operation mode. The method is mainly suitable for neural network calculation and other occasions including a large number of multiplication operations and a large number of accumulation operations.

Description

technical field [0001] The invention belongs to the field of integrated circuits, and in particular relates to an adder / subtractor for calculating concentrated sequences based on probability. Background technique [0002] Probability computing is a weightless numerical computing system that uses the proportion of "1" in a binary random bit stream to represent the size of the data. For example, in the following formula, the decimal number 0.25 is represented as 0.01 in binary, and it can be represented by 0001, 0100, 00100100, etc. in probability calculation. [0003] (0.25) 10 =(0×2 0 +0×2 -1 +1×2 -2 ) 10 =(0.01) 2 [0004] =(0001) SC4 =(00100100) SC8 =(11000000) SC8 (Formula 1); [0005] An outstanding advantage of probability calculation is that when the value is generated according to a random bit sequence, its original complex arithmetic operation can be realized by a very simple hardware logic circuit; for example, addition can be realized by a data selector...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F7/492
CPCG06F7/4925
Inventor 梁涛
Owner ZHONGBEI UNIV
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