Device and method for treating multiplication and addition calculations

A technology of addition operation and addition operation, applied in the computer field, can solve problems such as multi-resource and bit width, and achieve the effect of improving computing efficiency, reducing resource occupation, and reducing computing power consumption

Active Publication Date: 2017-09-29
HUAWEI MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When performing addition operations, due to the large bit width occupied by the data in the linear domain, the computer still needs to occupy more resources when performing addition operations

Method used

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  • Device and method for treating multiplication and addition calculations
  • Device and method for treating multiplication and addition calculations
  • Device and method for treating multiplication and addition calculations

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Embodiment Construction

[0045] The technical solution in this application will be described below with reference to the accompanying drawings. In order to better process the data processing device of the embodiment of the present application, the following first combines figure 1 A brief introduction is made to the method for processing multiplication and addition operations in the prior art.

[0046] figure 1 A schematic flowchart of a method for processing multiplication and addition operations in the prior art is shown.

[0047] exist figure 1 Among them, four multipliers (the first multiplier, the second multiplier, the third multiplier and the fourth multiplier) respectively multiply four pairs of data to obtain four 32-bit data, and then, the first addition The four 32-bit data output by the four multipliers are respectively added by the second adder to obtain two 32-bit data, and then the third adder outputs to the first adder and the second adder The two 32-bit data are added to obtain a ...

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Abstract

The invention provides a device and method for treating multiplication and addition calculations. The device comprises a first adder, which is used for conducting an addition calculation on first data and second data which are input and obtaining first middle data, a second adder, which is used for conducting an addition calculation on third data and fourth data which are input and obtaining second middle data, and a logarithm adder, wherein the values of the first data and the second data are logaA and logaB respectively, the values of the third data and the fourth data are logaC and logaD respectively, and the value of the second middle data is n; the logarithm adder is used for obtaining a<n-m> according to m and n input by the first adder and the second adder, and approximately determining the sum of m and a<n-m> as the value of (loge)*loga (A*B+C*D), and the first adder, the second adder and the logarithm adder are achieved by a hardware circuit. According to the device and method for treating multiplication and addition calculations, the power consumption of the calculations can be reduced in the calculation process.

Description

technical field [0001] The present application relates to the field of computers, and more particularly, relates to a device for processing multiplication and addition operations and a method for processing multiplication and addition operations. Background technique [0002] Computers often use multiplication and addition operations when processing input data. When a computer performs a multiplication and addition operation, it first multiplies the input data, and then performs addition operations on the data obtained by the multiplication. Since the input data is generally the data in the linear domain, and the bit width occupied by the data in the linear domain is generally relatively large (for example, 32 bits), the computer needs to occupy more resources when performing multiplication and addition operations. In addition, since the multiplication and addition operation includes a large number of multiplication operations, the multiplication operation requires a large a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F7/544
CPCG06F7/5443
Inventor 徐斌陈清龙戎建江
Owner HUAWEI MACHINERY
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