bochs

1、安装

sudo apt-get install bochssudo apt-get install bochs-x

2、编写文件

vim boot.asm

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   dw 0xaa55 ; 结束标志  

执行：

nasm boot.asm -o boot.bin
dd if=boot.bin of=a.img
dd if=/dev/zero of=a.img seek=1 bs=512 count=2879

vim bochsrc

###############################################################
# Configuration file for Bochs
################################################################ how much memory the emulated machine will have
megs: 32# filename of ROM images
romimage: file=/usr/share/bochs/BIOS-bochs-latest
vgaromimage: file=/usr/share/bochs/VGABIOS-lgpl-latest# what disk images will be used
floppya: 1_44=a.img, status=inserted# choose the boot disk.
boot: floppy# where do we send log messages?
# log: bochsout.txt# disable the mouse
mouse: enabled=0# enable key mapping, using US layout as default.
#keyboard_mapping: enabled=1, map=/usr/share/bochs/keymaps/x11-pc-us.map

3、运行

bochs -f bochsrc