diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..a5ca103
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+*.bin 
diff --git a/boot.asm b/boot.asm
new file mode 100644
index 0000000..9f16e25
--- /dev/null
+++ b/boot.asm
@@ -0,0 +1,18 @@
+	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
diff --git a/test b/test
deleted file mode 100644
index e69de29..0000000