本文介紹一個基于Intel 80x86 CPU實模式下的多任務(wù)微型操作系統(tǒng)MOS的設(shè)計與實現(xiàn)。
著重闡述了MOS的層次結(jié)構(gòu)、內(nèi)存布局、引導(dǎo)程序設(shè)計、進程管理、上下文切換、信號量管理、內(nèi)存管理、文件系統(tǒng)、I/O管理、用戶接口以及MOS命令處理程序。MOS可作為嵌入式操作系統(tǒng)，它易于擴充和移植。
關(guān)鍵字：MOS 微型操作系統(tǒng)；層次結(jié)構(gòu)；進程；上下文切換
Abstract: The paper introduces the design and the Implementation of a simple multi-task mini
operating system (MOS) based on Intel 80x86 CPU real model. It expounds the hierarchical
structure of MOS, memory layout, design of bootstrap, process management, context switch,
semaphore management, memory management, file system, I/O management, user interface nd
MOS command processor. MOS can be as a embedded operating system. It’s extensible and
portable.
Key words: MOS mini operating system; hierarchical structure; process; context switch