JAVA virtual machine hardware independency platform based on MIPS and independency improvement method thereof

Abstract

The invention discloses a JAVA virtual machine hardware independency platform based on MIPS and an independency improvement method of the JAVA virtual machine hardware independency platform. The JAVA virtual machine hardware independency platform based on the MIPS comprises a processor abstraction engine module, a memory management interface module, a task scheduling and local calling module, a compiling engine, an input/output module and the like. The independency improvement method of the JAVA virtual machine hardware independency platform based on the MIPS comprises the following steps of (1) starting a virtual machine, processing command line input, (2) initializing the operating environment of the virtual machine, (3) calling in and loading a Class file, (4) formatting a storage frame of a memory, and (5) executing a Java program. The JAVA virtual machine hardware independency platform based on the MIPS and the independency improvement method of the JAVA virtual machine hardware independency platform based on the MIPS have the advantages that an HAL of the virtual machine is designed in a clear modularization mode, platform transfer is facilitated, platform independency of hardware interfaces is achieved, development efficiency is improved, and difficulty of transfer is reduced.

Description

technical field [0001] The invention relates to a hardware-independent platform of JAVA virtual machine based on MIPS and an improvement method of its independence. Background technique [0002] After the Java source program is compiled by the compiler, a class file class composed of bytecodes is generated. During execution, the classloader first loads the bytecodes from the class file. After the safety verification by the checker, the Java virtual machine reads the bytecodes. Section code, translated into platform-specific instructions, and executed in the corresponding CPU. [0003] The Java virtual machine is the heart of the running of Java programs. Many excellent features of Java are derived from the concept and implementation of the Java virtual machine. The Java virtual machine is an abstract computer based on an actual processor. The Java virtual machine runs The bytecode read from the Class class file, so the Java virtual machine can also be regarded as a software...

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Problems solved by technology

[0011] The purpose of the present invention is: through targeted research on the traditional virtual machine transplantation scheme, the traditional hotspot has many historical legacy codes, the coupling degree between each code block is quite high, involves many CPU details, and the amount of assembly code is large , the complexity of the call relationship between codes causes a large workload of transplantation, great difficulty in transplantation, and reduced robustness after transplantation. In the transplantation of the MIPS platform, a JAVA virtual machine hardware-independent platform based on MIPS and its independent Improve methods to solve the shortcomings of the existing technology

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