diff --git a/09_day/Makefile b/09_day/Makefile
index 2bda89c..8fa0b87 100644
--- a/09_day/Makefile
+++ b/09_day/Makefile
@@ -1,5 +1,5 @@
 OBJS_BOOTPACK = bootpack.obj naskfunc.obj hankaku.obj graphic.obj dsctbl.obj \
-		int.obj fifo.obj
+		int.obj fifo.obj keyboard.obj mouse.obj
 
 TOOLPATH = ../z_tools/
 INCPATH  = ../z_tools/haribote/
@@ -56,7 +56,7 @@ haribote.img : ipl10.bin haribote.sys Makefile
 
 # 其他指令
 
-%.gas : %.c Makefile
+%.gas : %.c bootpack.h Makefile
 	$(CC1) -o $*.gas $*.c
 
 %.nas : %.gas Makefile
diff --git a/09_day/bootpack.c b/09_day/bootpack.c
index b0a023f..f6fe864 100644
--- a/09_day/bootpack.c
+++ b/09_day/bootpack.c
@@ -3,17 +3,6 @@
 #include "bootpack.h"
 #include <stdio.h>
 
-extern struct FIFO8 keyfifo, mousefifo;
-
-struct MOUSE_DEC {
-	unsigned char buf[3], phase;
-	int x, y, btn;
-};
-
-void enable_mouse(struct MOUSE_DEC *mdec);
-int mouse_decode(struct MOUSE_DEC *mdec, unsigned char dat);
-void init_keyboard(void);
-
 void HariMain(void)
 {
 	struct BOOTINFO *binfo = (struct BOOTINFO *) ADR_BOOTINFO;
@@ -97,85 +86,3 @@ void HariMain(void)
 	}
 }
 
-#define PORT_KEYDAT       0x0060
-#define PORT_KEYSTA       0x0064
-#define PORT_KEYCMD       0x0064
-#define KEYSTA_SEND_NOTREADY  0x02
-#define KEYCMD_WRITE_MODE   0x60
-#define KBC_MODE        0x47
-
-void wait_KBC_sendready(void)
-{
-	/* 等待键盘控制电路准备完毕 */
-	for (;;) {
-		if ((io_in8(PORT_KEYSTA) & KEYSTA_SEND_NOTREADY) == 0) {
-			break;
-		}
-	}
-	return;
-}
-
-void init_keyboard(void)
-{
-	/* 初始化键盘控制电路 */
-	wait_KBC_sendready();
-	io_out8(PORT_KEYCMD, KEYCMD_WRITE_MODE);
-	wait_KBC_sendready();
-	io_out8(PORT_KEYDAT, KBC_MODE);
-	return;
-}
-
-#define KEYCMD_SENDTO_MOUSE   0xd4
-#define MOUSECMD_ENABLE     0xf4
-
-void enable_mouse(struct MOUSE_DEC *mdec){
-	/* 鼠标有效 */
-	wait_KBC_sendready();
-	io_out8(PORT_KEYCMD, KEYCMD_SENDTO_MOUSE);
-	wait_KBC_sendready();
-	io_out8(PORT_KEYDAT, MOUSECMD_ENABLE);
-	/* 顺利的话，ACK(0xfa)会被送过来 */
-	mdec->phase = 0; /* 等待0xfa的阶段 */    
-	return;
-}
-
-int mouse_decode(struct MOUSE_DEC *mdec, unsigned char dat){
-	if (mdec->phase == 0) {
-		/* 等待鼠标的0xfa的阶段 */
-		if (dat == 0xfa) {
-			mdec->phase = 1;
-		}        
-		return 0;
-	}
-	if (mdec->phase == 1) {
-		/* 等待鼠标第一字节的阶段 */
-		mdec->buf[0] = dat;
-		mdec->phase = 2;
-		return 0;
-	}
-	if (mdec->phase == 2) {
-		/* 等待鼠标第二字节的阶段 */
-		mdec->buf[1] = dat;
-		mdec->phase = 3;
-		return 0;
-	}
-	if (mdec->phase == 3) {
-		/* 等待鼠标第二字节的阶段 */
-		mdec->buf[2] = dat;
-		mdec->phase = 1;
-		mdec->btn = mdec->buf[0] & 0x07;
-		mdec->x = mdec->buf[1];
-		mdec->y = mdec->buf[2];
-		if ((mdec->buf[0] & 0x10) != 0) {
-			mdec->x |= 0xffffff00;
-		}
-		if ((mdec->buf[0] & 0x20) != 0) {
-			mdec->y |= 0xffffff00;
-		}     
-		/* 鼠标的y方向与画面符号相反 */   
-		mdec->y = - mdec->y; 
-		return 1;
-	}
-	/* 应该不可能到这里来 */
-	return -1; 
-}
diff --git a/09_day/bootpack.h b/09_day/bootpack.h
index 650af9c..a143478 100644
--- a/09_day/bootpack.h
+++ b/09_day/bootpack.h
@@ -85,9 +85,7 @@ void set_gatedesc(struct GATE_DESCRIPTOR *gd, int offset, int selector, int ar);
 
 /* int.c */
 void init_pic(void);
-void inthandler21(int *esp);
 void inthandler27(int *esp);
-void inthandler2c(int *esp);
 #define PIC0_ICW1		0x0020
 #define PIC0_OCW2		0x0020
 #define PIC0_IMR		0x0021
@@ -100,3 +98,21 @@ void inthandler2c(int *esp);
 #define PIC1_ICW2		0x00a1
 #define PIC1_ICW3		0x00a1
 #define PIC1_ICW4		0x00a1
+
+/* keyboard.c */
+void inthandler21(int *esp);
+void wait_KBC_sendready(void);
+void init_keyboard(void);
+extern struct FIFO8 keyfifo;
+#define PORT_KEYDAT		0x0060
+#define PORT_KEYCMD		0x0064
+
+/* mouse.c */
+struct MOUSE_DEC {
+	unsigned char buf[3], phase;
+	int x, y, btn;
+};
+void inthandler2c(int *esp);
+void enable_mouse(struct MOUSE_DEC *mdec);
+int mouse_decode(struct MOUSE_DEC *mdec, unsigned char dat);
+extern struct FIFO8 mousefifo;
diff --git a/09_day/int.c b/09_day/int.c
index 729510c..7c4226b 100644
--- a/09_day/int.c
+++ b/09_day/int.c
@@ -26,32 +26,6 @@ void init_pic(void)
 
 #define PORT_KEYDAT		0x0060
 
-struct FIFO8 keyfifo;
-
-void inthandler21(int *esp)
-/* 来自PS/2键盘的中断 */
-{
-	struct BOOTINFO *binfo = (struct BOOTINFO *) ADR_BOOTINFO;
-	unsigned char data, s[4];
-	io_out8(PIC0_OCW2, 0x61);	/* 通知PIC IRQ-01 已经受理完毕 */
-	data = io_in8(PORT_KEYDAT);
-	fifo8_put(&keyfifo, data);
-	return;
-}
-
-struct FIFO8 mousefifo;
-
-void inthandler2c(int *esp)
-/* 来自PS/2鼠标的中断 */
-{
-	unsigned char data;
-	io_out8(PIC1_OCW2, 0x64);	/* 通知PIC IRQ-12 已经受理完毕 */
-	io_out8(PIC0_OCW2, 0x62);	/* 通知PIC IRQ-02 已经受理完毕 */
-	data = io_in8(PORT_KEYDAT);
-	fifo8_put(&mousefifo, data);
-	return;
-}
-
 void inthandler27(int *esp)
 /* PIC0中断的不完整策略 */
 /* 这个中断在Athlon64X2上通过芯片组提供的便利，只需执行一次 */
diff --git a/09_day/keyboard.c b/09_day/keyboard.c
new file mode 100644
index 0000000..3d0b190
--- /dev/null
+++ b/09_day/keyboard.c
@@ -0,0 +1,39 @@
+/* 键盘控制代码 */
+
+#include "bootpack.h"
+
+struct FIFO8 keyfifo;
+
+void inthandler21(int *esp) {
+	/* 来自PS/2键盘的中断 */
+	struct BOOTINFO *binfo = (struct BOOTINFO *) ADR_BOOTINFO;
+	unsigned char data, s[4];
+	io_out8(PIC0_OCW2, 0x61);	/* 通知PIC IRQ-01 已经受理完毕 */
+	data = io_in8(PORT_KEYDAT);
+	fifo8_put(&keyfifo, data);
+	return;
+}
+
+#define PORT_KEYSTA						0x0064
+#define KEYSTA_SEND_NOTREADY	0x02
+#define KEYCMD_WRITE_MODE			0x60
+#define KBC_MODE							0x47
+
+void wait_KBC_sendready(void) {
+	/* 等待键盘控制电路准备完毕 */
+	for (;;) {
+		if ((io_in8(PORT_KEYSTA) & KEYSTA_SEND_NOTREADY) == 0) {
+			break;
+		}
+	}
+	return;
+}
+
+void init_keyboard(void) {
+	/* 初始化键盘控制电路 */
+	wait_KBC_sendready();
+	io_out8(PORT_KEYCMD, KEYCMD_WRITE_MODE);
+	wait_KBC_sendready();
+	io_out8(PORT_KEYDAT, KBC_MODE);
+	return;
+}
diff --git a/09_day/mouse.c b/09_day/mouse.c
new file mode 100644
index 0000000..8979b35
--- /dev/null
+++ b/09_day/mouse.c
@@ -0,0 +1,70 @@
+/* 鼠标控制代码 */
+
+#include "bootpack.h"
+
+struct FIFO8 mousefifo;
+
+void inthandler2c(int *esp) {
+	/* 来自PS/2鼠标的中断 */
+	unsigned char data;
+	io_out8(PIC1_OCW2, 0x64);	/* 通知PIC IRQ-12 已经受理完毕 */
+	io_out8(PIC0_OCW2, 0x62);	/* 通知PIC IRQ-02 已经受理完毕 */
+	data = io_in8(PORT_KEYDAT);
+	fifo8_put(&mousefifo, data);
+	return;
+}
+
+#define KEYCMD_SENDTO_MOUSE   0xd4
+#define MOUSECMD_ENABLE     0xf4
+
+void enable_mouse(struct MOUSE_DEC *mdec) {
+	/* 鼠标有效 */
+	wait_KBC_sendready();
+	io_out8(PORT_KEYCMD, KEYCMD_SENDTO_MOUSE);
+	wait_KBC_sendready();
+	io_out8(PORT_KEYDAT, MOUSECMD_ENABLE);
+	/* 顺利的话，ACK(0xfa)会被送过来 */
+	mdec->phase = 0; /* 等待0xfa的阶段 */    
+	return;
+}
+
+int mouse_decode(struct MOUSE_DEC *mdec, unsigned char dat) {
+	if (mdec->phase == 0) {
+		/* 等待鼠标的0xfa的阶段 */
+		if (dat == 0xfa) {
+			mdec->phase = 1;
+		}        
+		return 0;
+	}
+	if (mdec->phase == 1) {
+		/* 等待鼠标第一字节的阶段 */
+		mdec->buf[0] = dat;
+		mdec->phase = 2;
+		return 0;
+	}
+	if (mdec->phase == 2) {
+		/* 等待鼠标第二字节的阶段 */
+		mdec->buf[1] = dat;
+		mdec->phase = 3;
+		return 0;
+	}
+	if (mdec->phase == 3) {
+		/* 等待鼠标第二字节的阶段 */
+		mdec->buf[2] = dat;
+		mdec->phase = 1;
+		mdec->btn = mdec->buf[0] & 0x07;
+		mdec->x = mdec->buf[1];
+		mdec->y = mdec->buf[2];
+		if ((mdec->buf[0] & 0x10) != 0) {
+			mdec->x |= 0xffffff00;
+		}
+		if ((mdec->buf[0] & 0x20) != 0) {
+			mdec->y |= 0xffffff00;
+		}     
+		/* 鼠标的y方向与画面符号相反 */   
+		mdec->y = - mdec->y; 
+		return 1;
+	}
+	/* 应该不可能到这里来 */
+	return -1; 
+}