刚才解决了，感觉网上的教程好少啊，这就当个教程吧，功能是在屏幕上显示一行文本，Hello OS，写入U盘并从U盘启动，可以看到这行字，说明程序没问题，刚才也从bochs中启动开了
首先给大家看看启动时用的system.asm文件，直接抄书本的，应该没问题
代码:
org 07c00h
mov ax, cs
mov ds, ax
mov es, ax
call DispStr
jmp $
DispStr:
mov ax, BootMessage
mov bp, ax
mov cx, 16
mov ax, 01301h
mov bx, 000ch
mov dl, 0
int 10h
ret
BootMessage: db "Hello, OS!"
times 510-($-$$) db 0
dw 0xaa55
使用命令
代码:
nasm system.asm -o system.bin
生成了system.bin文件，使用bochs带的bximage创建img映像：
代码:
bximage
========================================================================
bximage
Disk Image Creation Tool for Bochs
$Id: bximage.c 10933 2012-01-04 19:34:08Z vruppert $
========================================================================
Do you want to create a floppy disk image or a hard disk image?
Please type hd or fd. [hd] fd
Choose the size of floppy disk image to create, in megabytes.
Please type 0.16, 0.18, 0.32, 0.36, 0.72, 1.2, 1.44, 1.68, 1.72, or 2.88.
[1.44] 1.44
I will create a floppy image with
cyl=80
heads=2
sectors per track=18
total sectors=2880
total bytes=1474560
What should I name the image?
[a.img]
Writing: [] Done.
I wrote 1474560 bytes to a.img.
The following line should appear in your bochsrc:
floppya: image="a.img", status=inserted
然后用dd命令将system.bin的文件内容写入a.img:
代码:
dd if=system.bin of=a.img count=1 bs=512 conv=notrunc
用ghex2查看a.img，发现文件已写入
然后将a.img放到$HOME/system/中，然后在主目录下创建.bochsrc文件，内容如下：
代码:
###############################################################
# bochsrc.txt file for DLX Linux disk image.
###############################################################
# how much memory the emulated machine will have
megs: 32
# filename of ROM images
romimage: file=/usr/share/bochs/BIOS-bochs-latest
vgaromimage: file=/usr/share/bochs/VGABIOS-elpin-2.40
# what disk images will be used
floppya: 1_44=$HOME/a.img, status=inserted
# hard disk
ata0: enabled=1, ioaddr1=0x1f0, ioaddr2=0x3f0, irq=14
#ata0-master: type=disk, path="hd10meg.img", cylinders=306, heads=4, spt=17
# choose the boot disk.
boot: floppy
# default config interface is textconfig.
#config_interface: textconfig
#config_interface: wx
#display_library: x
# other choices: win32 sdl wx carbon amigaos beos macintosh nogui rfb term svga
# where do we send log messages?
log: bochsout
# disable the mouse, since DLX is text only
mouse: enabled=0
# enable key mapping, using US layout as default.
#
# NOTE: In Bochs 1.4, keyboard mapping is only 100% implemented on X windows.
# However, the key mapping tables are used in the paste function, so
# in the DLX Linux example I'm enabling keyboard_mapping so that paste
# will work. Cut&Paste is currently implemented on win32 and X windows only.
keyboard_mapping: enabled=1, map=$BXSHARE/keymaps/x11-pc-us.map
#keyboard_mapping: enabled=1, map=$BXSHARE/keymaps/x11-pc-fr.map
#keyboard_mapping: enabled=1, map=$BXSHARE/keymaps/x11-pc-de.map
#keyboard_mapping: enabled=1, map=$BXSHARE/keymaps/x11-pc-es.map
然后在$HOME/system文件夹下，执行命令bochs，启动虚拟机，按6开始模拟，弹出一个窗口，原来的窗口还带一个命令行，在命令行下输入c，开始运行，显示红色的Hello OS! 终于成功了，搞了两个下午！肯定有后人需要，给大家做个参考吧
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