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Virtual machine system and implementing method thereof

A virtual machine and subsystem technology, applied in software simulation/interpretation/simulation, electrical components, program control devices, etc., can solve problems such as complexity and inability to guarantee transplantation effects, achieve good portability, ensure high efficiency, and ensure reliability The effect of scalability

Inactive Publication Date: 2011-06-15
GUANGDONG TRI SUN ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the MIPS target platform, if PBP is used, a lot of transplantation work needs to be done for the processor, and it may also involve the underlying MIPS instruction set or the corresponding assembly and hardware interrupts. This is more complicated and the transplantation effect cannot be guaranteed.

Method used

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  • Virtual machine system and implementing method thereof
  • Virtual machine system and implementing method thereof
  • Virtual machine system and implementing method thereof

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0026] The embodiment of the present invention provides a kind of implementation method of kaffe virtual machine system, and this system has its own platform-related local library, and these library programs correspond to the local implementation parts related to the Java standard class library and the system, such as I / O operations, mathematical functions, Graphics support, network support, etc. The system adopts modular programming design, small kernel, easy cutting, good scalability and high efficiency, and can be applied to multiple platforms. Each will be described in detail below.

[0027] The middleware implementation scheme based on the set-top box is attach...

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Abstract

The invention discloses a kaffe virtual machine system and an implementing method thereof. The system is positioned in a sub-middleware layer of a set-top box. The system consists of a plurality of independent subsystems, namely a class manager, a byte code verifier, a kaffe virtual machine execution engine, a system call subsystem, a storage management subsystem and a local method interface subsystem, wherein the class manager takes charge in loading classes, initializing the classes and the like; the byte code verifier ensures the correctness of a class file format; and the kaffe virtual machine execution engine comprises an interpreter and a just-time compiler. The kaffe virtual machine system has an OpenSource characteristic, a small kernel and high portability, and supports the application of an embedded system in a Linux / million instructions per second (MipS) system.

Description

technical field [0001] The invention relates to the technical field of digital TV set-top box middleware, in particular to a method for realizing a kaffe virtual machine system. Background technique [0002] Middleware is a type of software between application software and system software. Middleware can shield the complexity of the underlying operating system, enabling program developers to face a simple and unified development environment and reducing the complexity of program design. In terms of technology, it reduces the repeated transplantation of programs between different system environments. The Java virtual machine is a part of the core of the set-top box middleware, providing an application program interface upward, and accessing the operating system and hardware downward. In the context of this specific embedded application, the requirements and limitations of software and hardware resources must be considered when transplanting a Java virtual machine. The first ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/455H04N21/43
Inventor 彭国标付少云宋宝云邓义宏
Owner GUANGDONG TRI SUN ELECTRONICS TECH
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