Floating-point number adder and floating-point number addition method based on asynchronous control

Abstract

The invention relates to a floating-point number adder and a floating-point number addition method based on asynchronous control. The adder comprises a docking shift module, an adding module, a normalized shift module and a plurality of asynchronous control modules. The docking shift module is used for preprocessing a plurality of floating-point numbers so that the order codes of the plurality offloating-point numbers are the same. The addition module is used for adding fractional parts of a plurality of floating-point numbers pretreated by a docking shift module to obtain an initial calculation result, and the addition module is used for adding fractional parts of the floating-point numbers pretreated by the docking shift module to obtain an initial calculation result. The normalized shifting module is used for shifting the initial calculation result to obtain the normalized final calculation result; the normalized shifting module is used for shifting the initial calculation result to obtain the normalized final calculation result. A plurality of asynchronous control modules are respectively connected with a docking shift module, an addition module and a normalized shift module,and are used for controlling the logical sequence of the operation of the docking shift module, the addition module and the normalized shift module. The floating-point number adder of the invention can effectively reduce the running power consumption of the floating-point number adder, and greatly improves the operation speed of the floating-point number adder.

Description

technical field [0001] The invention relates to the field of arithmetic operations of floating-point numbers in integrated circuits, in particular to an asynchronous control-based floating-point number adder and a method for adding floating-point numbers. Background technique [0002] With the rapid development of human society, we have entered the information age. The thrust of pushing society into the information age lies in the emergence and rapid development of computers. The foundation of the computer industry is the integrated circuit industry. Only the smaller and faster the integrated circuit design is, the more jobs the computer can do and the more possibilities the information industry can create. At present, the technological level has been greatly improved, and the performance of the microprocessor has been amazingly developed, and the microprocessor has also been continuously updated. [0003] The main function of a computer is to perform numerical calculation...

AI Technical Summary

Problems solved by technology

This design method is driven by a synchronous circuit, that is, as long as the circuit is running without actual data input, the circuit is still running, which leads to a lot of waste of power consumption

In the field of the Internet of Things, in the Internet of Things terminal equipment, it is often not necessary for the circuit to calculate data all the time, and only perform data calculation when needed. If the circuit is always running, it will consume too much power.

Moreover, for Internet of Things terminal devices, they often have their own batteries. The limited power design makes engineers need to pay special attention to power consumption when designing circuits.

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