Bochs 项目源码分析与注释

Chapter 1 x86 体系结构与PC 系统概要.....................................1 1．1 x86 CPU 结构...............................................................................................................1 1．1．1 冯诺依曼架构和CISC 指令集......................................................................1 1．1．2 CPU 结构........................................................................................................1 1．1．3 CPU 工作模式................................................................................................2 1．2 x86 体系结构概览..... ...................................................................................................3 1．3 PC 系统.........................................................................................................................5 1．3．1 PC 系统概述...................................................................................................5 2．3．2 总线拓扑.........................................................................................................6 2．3．3 存储器与I/O 编址.........................................................................................6 2．3．4 关于系统的启动与引导.................................................................................8 Chapter 2 Bochs 工程概述....................................................... 11 2．1 开源项目Bochs 介绍.................................................................................................11 2．2 版本2.2.1 源码组织..................................................................................................11 2．3 工程类结构.................................................................................................................12 2．4 主体框架结构分析.....................................................................................................13 2．4．1 Bochs 工程中的重要类................................................................................13 （1） VM 控制台界面类.............................................................................................13 （2） CPU 模拟............................................................................................................14 （3） Memory 模拟......................................................................................................14 （4）．I/O device 模拟...................................................................................................15 2．4．2 入口函数main()及Win32 Gui 初始化........................................................15 2．5 Bochs 的工作方式......................................................................................................18 Chapter 3 CPU 类的源码分析...................................................20 3．1 CPU 类概述................................................................................................................20 3．1．1 CPU 逻辑结构框图......................................................................................20 3．1．2 类BX_CPU_C 成员归纳.............................................................................20 3．2 类BX_CPU_C 源码分析..........................................................................................21 3．2．1 CPU 特性声明..............................................................................................21 3．2．2 类bxInstruction_c 成员分析........................................................................22 3．2．3 类BX_CPU_C 源码注释.............................................................................22 3．3 通用寄存器.................................................................................................................29 3．3．1 数据结构与注释...........................................................................................29 3．3．2 通用寄存器归纳...........................................................................................30 3．4 段寄存器、全局寄存器GDI 和IDT ........................................................................31 3．4．1 数据结构与注释...........................................................................................31 3．4．2 段寄存器结构分析.......................................................................................33 3．5 CPU 状态字EFLAGS................................................................................................35 3．5．1 数据结构与注释...........................................................................................35 ...................................................................................................3 1．3 PC 系统.........................................................................................................................5 1．3．1 PC 系统概述...................................................................................................5 2．3．2 总线拓扑.........................................................................................................6 2．3．3 存储器与I/O 编址.........................................................................................6 2．3．4 关于系统的启动与引导.................................................................................8 Chapter 2 Bochs 工程概述....................................................... 11 2．1 开源项目Bochs 介绍.................................................................................................11 2．2 版本2.2.1 源码组织..................................................................................................11 2．3 工程类结构.................................................................................................................12 2．4 主体框架结构分析.....................................................................................................13 2．4．1 Bochs 工程中的重要类................................................................................13 （1） VM 控制台界面类.............................................................................................13 （2） CPU 模拟............................................................................................................14 （3） Memory 模拟......................................................................................................14 （4）．I/O device 模拟...................................................................................................15 2．4．2 入口函数main()及Win32 Gui 初始化........................................................15 2．5 Bochs 的工作方式......................................................................................................18 Chapter 3 CPU 类的源码分析...................................................20 3．1 CPU 类概述................................................................................................................20 3．1．1 CPU 逻辑结构框图......................................................................................20 3．1．2 类BX_CPU_C 成员归纳.............................................................................20 3．2 类BX_CPU_C 源码分析..........................................................................................21 3．2．1 CPU 特性声明..............................................................................................21 3．2．2 类bxInstruction_c 成员分析........................................................................22 3．2．3 类BX_CPU_C 源码注释.............................................................................22 3．3 通用寄存器.................................................................................................................29 3．3．1 数据结构与注释...........................................................................................29 3．3．2 通用寄存器归纳...........................................................................................30 3．4 段寄存器、全局寄存器GDI 和IDT ........................................................................31 3．4．1 数据结构与注释...........................................................................................31 3．4．2 段寄存器结构分析.......................................................................................33 3．5 CPU 状态字EFLAGS................................................................................................35 3．5．1 数据结构与注释...........................................................................................35