VirtualBox下载

Ubuntu 20.04下载

bochs-2.6.10

共享文件夹：

挂载文件夹：

mount -t vboxsf Share /mnt/myShare
# 自动挂载 /etc/fstab文件中添加一行代码
Share /mnt/myShare vboxsf rw,gid=100,uid=1000,auto 0 0

./configure \
--prefix=/usr/local/bochs \
--enable-debugger \
--enable-disasm \
--enable-iodebug \
--enable-x86-debugger \
--with-x \
--with-x11

apt install fluxbox xinit xterm

sudo apt install vim
sudo apt install build-essential
sudo apt install xorg-dev
sudo apt install libgtk2.0-dev
sudo apt install g++

修改配置：allowed_users = anybody

sudo vi /etc/X11/Xwrapper.config

bochsrc.disk内容：

megs : 32
romimage: file=/usr/local/bochs/share/bochs/BIOS-bochs-latest
vgaromimage: file=/usr/local/bochs/share/bochs/VGABIOS-lgpl-latest
boot: disk
log: bochs.out
mouse:enabled=0
keyboard:keymap=/usr/local/bochs/share/bochs/keymaps/x11-pc-us.map
ata0:enabled=1,ioaddr1=0x1f0,ioaddr2=0x3f0,irq=14
ata0-master: type=disk, path="/usr/local/bochs/bin/hd60M.img", mode=flat,cylinders=121,heads=16,spt=63
#gdbstub:enabled=1,port=1234,text_base=0,data_base=0,bss_base=0

nasm -o boot.bin boot.asm
dd if=boot.bin of=hd60M.img bs=512 count=1 conv=notrunc

测试代码：

    org    07c00h                   ; 告诉编译器程序加载到 7c00 处
    mov    ax, cs
    mov    ds, ax
    mov    es, ax
    call   DispStr                  ; 调用显示字符串例程
    jmp    $                        ; 无限循环
DispStr:
    mov    ax, BootMessage
    mov    bp, ax                   ; ES:BP = 串地址
    mov    cx, 16                   ; CX = 串长度
    mov    ax, 01301h               ; AH = 13, AL = 01h
    mov    bx, 000ch                ; 页号为 0(BH = 0) 黑底红字(BL = 0Ch, 高亮)
    mov    dl, 0
    int    10h                      ; 10h 号中断
    ret
BootMessage:    db    "Hello, OS world!"
times    510-($-$$)    db    0      ; 填充剩下的空间, 使生成的二进制代码恰好为 512 字节
dw       0xaa55                     ; 结束标志