Method and device for supporting effective data bit coding of data with any bit width

Abstract

The invention discloses a method and a device for supporting effective data bit encoding of data with any bit width. The method comprises the following steps of: grouping data bits of operands; judging whether the operands have coding requirements, and if not, outputting the grouping result as a final coding result; if there is a coding demand, performing intra-group coding on the grouped operands, further judging whether a result after intra-group coding generates carry, receiving the result after intra-group coding, and outputting the result after receiving carry as a final coding result; and otherwise, outputting the result after intra-group coding as a final coding result. The method has the advantages of high performance, low cost, easiness in implementation and flexibility in use, issimple to implement, and can be flexibly applied to the design of an existing processor.

Description

technical field [0001] The invention relates to the field of microarchitecture design of microprocessors, in particular to a method and device for encoding effective data bits of arbitrary bit width data. Background technique [0002] Since the birth of the chip, it has been following Moore's law, and its performance has doubled almost every 18-24 times. However, as the technology continues to approach the physical limit, Moore's law is facing failure, and the development of the chip will enter the post-Moore era, which means The space for improving chip performance will face greater constraints. The composition of the chip can be roughly divided into processor core, storage, interconnection, and IO, among which the core is the processor core. The main function of the processor core is to realize the control between the various modules of the chip, and the fundamental task of the chip---computation. The processor core needs to implement various calculations. In addition to ...

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Problems solved by technology

[0002] Since the birth of the chip, it has been following Moore's Law, and its performance has doubled almost every 18-24 times. However, as the technology continues to approach the physical limit, Moore's Law is facing failure, and the development of the chip will enter the post-Moore era, which means With the chip performance improvement space will face greater constraints

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