diff --git a/related_info/lab1/toybootloader/Makefile b/related_info/lab1/toybootloader/Makefile
new file mode 100644
index 0000000..13d9832
--- /dev/null
+++ b/related_info/lab1/toybootloader/Makefile
@@ -0,0 +1,9 @@
+all:toy
+toy.o: toy.S
+	as -o toy.o toy.S
+toy: toy.o	
+	ld --oformat binary -N -e start -Ttext 0x7c00 -o toy toy.o
+run: toy
+	qemu-system-i386 -fda toy
+clean:
+	rm toy.o toy
diff --git a/related_info/lab1/toybootloader/toy.S b/related_info/lab1/toybootloader/toy.S
new file mode 100644
index 0000000..e40adcb
--- /dev/null
+++ b/related_info/lab1/toybootloader/toy.S
@@ -0,0 +1,30 @@
+.text
+.globl start                                                /* 程序从start处开始运行 */
+.code16
+start:
+ jmpl $0x0, $code 
+msg:
+ .string "Hello world!"
+code:
+	mov     %cs,%ax   
+	mov     %ax,%ds 
+	mov     %ax,%es    
+	mov     %ax,%ss  
+	mov     $0x400,%sp  
+	call       dispstr                                    /* call dispstr函数显示字符串 */
+			
+loop0:                                                          /* 无限循环 */
+	jmp loop0
+	
+dispstr:
+	mov $msg      ,%ax
+	mov %ax        ,%bp                             /* es:bp = 串地址 */
+	mov $12         ,%cx                              /* cs = 串长度 */
+	mov $0x1301 ,%ax                              /* ah=0x13：显示字符串 ,al=0x1：显示输出方式 */
+	mov $0x000c ,%bx                              /* bh=0 ：第0页,  bl=0xc ：高亮 黑底红字 */
+	mov $0           ,%dl                               /* 在0行0列显示*/
+	int $0x10                                              /* 调用BIOS提供的int服务0x10的0x13功能：显示字符串 */ 
+	ret
+		
+.org    0x1fe, 0x90 
+.word 0xaa55 
diff --git a/related_info/lab1/toybootloader/toy.md b/related_info/lab1/toybootloader/toy.md
new file mode 100644
index 0000000..0955305
--- /dev/null
+++ b/related_info/lab1/toybootloader/toy.md
@@ -0,0 +1,8 @@
+From http://blog.csdn.net/guocaigao/article/details/8476086
+
+A toy bootloader can display string in real mode of x86.
+
+Try
+```
+make run
+```