Single-chip computer instruction extension method and system

Abstract

The present invention provides a single-chip computer instruction extension method and system, which can identify the used instruction set and the unused instruction set in the single-chip computer assembly instruction set, and clarify the space occupied by the unused instruction set in the single-chip computer assembly instruction set. In the space occupied by the instruction set, design instructions for processing 16-bit data, obtain 16-bit extended instructions, and integrate the used instruction set and 16-bit extended instructions through macro definition to obtain an integrated assembly instruction set. The whole process provides an instruction optimization method for multi-bit data. It does not need to add more instructions to decompose the operation, and the instruction execution cycle is also shortened to 1 cycle. At the same time, the use efficiency and execution efficiency of the code space are improved. The requirement is met without replacing the 16-bit CPU, the cost is saved, and the multi-bit data processing capability of the 8-bit CPU is improved, which can effectively promote the further improvement of the operating efficiency of the single-chip microcomputer.

Description

technical field [0001] The invention relates to the technical field of single-chip microcomputers, in particular to a single-chip microcomputer instruction extension method and system. Background technique [0002] Single-chip microcomputer, the full name of single-chip microcomputer, also known as microcontroller, is a microcomputer that integrates a central processing unit, memory, timer / counter, and various input and output interfaces on an integrated circuit chip. Compared with general-purpose microprocessors used in personal computers, it places more emphasis on self-supply (no external hardware) and cost savings. Its biggest advantage is that it is small in size and can be placed inside the instrument, but it has small storage capacity, simple input and output interfaces, and low functions. [0003] In order to meet people's continuous needs, researchers have developed some single-chip microcomputers with strong computing power, such as the existing 8051 single-chip m...

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Problems solved by technology

[0004] Based on this, it is necessary to provide a single-chip instruction extension method and system that can promote the further improvement of single-chip operating efficiency for the problem that the general single-chip instruction extension method restricts the further improvement of the single-chip operating efficiency

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