copy lab1

This commit is contained in:
ridethepig 2022-09-16 16:26:35 +08:00
parent 387f0ee89c
commit b087c2cbd4
3 changed files with 19 additions and 0 deletions

1
.gitignore vendored Normal file
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*.bin

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boot.asm Normal file
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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 0x55aa ; 结束标志

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test
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