bochs运行错误——系统制作

Question

boot.asm

    org 0x7c00
BaseOfStack equ 0x7c00
StartBootMessage: db "start boot"
label_start:
    mov ax,cs
    mov ds,ax
    mov es,ax
    mov ss,ax
    mov sp,BaseOfStack
;====== clear screen
    mov ax,0600h
    mov bx,0700h
    mov cx,0
    mov dx,0184fh
    int 10h
;====== set focus
    mov ax,0200h
    mov bx,0000h
    mov dx,0000h
    int 10h
;====== display in screen:start booting
    mov ax,1301h
    mov bx,000fh
    mov dx,0000h
    mov cx,10
    push ax
    mov ax,ds
    mov es,ax
    pop ax
    mov bp,StartBootMessage
    int 10h
;====== reset flopy
    xor ah,ah
    xor dl,dl
    int 13h
    jmp $
;====== fill zero until whole sector
    times 510 - ($ - $$) db 0
    dw 0xaa55

bochsrc

floppya: 1_44="boot.img", status=inserted
boot: floppy

命令

bximage
1
fd
1.44MB
boot.img

nasm boot.asm -o boot.bin
dd if=boot.bin of=boot.img bs=512 count=1 conv=notrunc
bochs -f ./bochsrc
c

结果：

为什么？

Answer 1

• 这篇文章讲的很详细，请看：Bochs的使用