diff --git a/step_3/Makefile b/step_3/Makefile
index bc292f6..ed545c4 100644
--- a/step_3/Makefile
+++ b/step_3/Makefile
@@ -11,7 +11,9 @@ LOADER=loader
 ROOT=..
 FILESYSTEM=filesystem
 USER=user
-all: $(USER)/stone.bin $(KERNEL)/kernel.bin $(LOADER)/loader.bin build cleangch
+STONE=stone
+STONE_OBJ=$(USER)/$(STONE)/stoneQ.bin $(USER)/$(STONE)/stoneW.bin $(USER)/$(STONE)/stoneA.bin $(USER)/$(STONE)/stoneS.bin
+all: $(STONE_OBJ) $(KERNEL)/kernel.bin $(LOADER)/loader.bin build cleangch
 
 $(KERNEL)/kernel.bin: 
 	echo "\n"
@@ -43,12 +45,25 @@ $(FILESYSTEM)/datablock.bin:
 	cd $(FILESYSTEM)/ && make 
 	cd $(ROOT)/
 
-$(USER)/stone.bin:
+$(USER)/$(STONE)/stoneQ.bin:
 	echo "\n"
 	cd $(USER)/ && make 
 	cd $(ROOT)/
+$(USER)/$(STONE)/stoneW.bin:
+	echo "\n"
+	cd $(USER)/ && make 
+	cd $(ROOT)/
+$(USER)/$(STONE)/stoneA.bin:
+	echo "\n"
+	cd $(USER)/ && make 
+	cd $(ROOT)/
+$(USER)/$(STONE)/stoneS.bin:
+	echo "\n"
+	cd $(USER)/ && make 
+	cd $(ROOT)/
+
 
-build: $(LOADER)/loader.bin $(FILESYSTEM)/DBR.bin $(FILESYSTEM)/FAT.bin $(FILESYSTEM)/datablock.bin
+build: $(LOADER)/loader.bin $(FILESYSTEM)/DBR.bin $(FILESYSTEM)/FAT.bin $(FILESYSTEM)/datablock.bin $(STONE_OBJ)
 	echo "\n"
 	dd if=$(LOADER)/loader.bin of=OS.img conv=notrunc
 	dd if=$(FILESYSTEM)/DBR.bin of=OS.img conv=notrunc oflag=seek_bytes seek=512
@@ -56,7 +71,10 @@ build: $(LOADER)/loader.bin $(FILESYSTEM)/DBR.bin $(FILESYSTEM)/FAT.bin $(FILESY
 	dd if=$(FILESYSTEM)/FAT.bin of=OS.img conv=notrunc oflag=seek_bytes seek=3584
 	dd if=$(FILESYSTEM)/datablock.bin of=OS.img conv=notrunc oflag=seek_bytes seek=6656
 	dd if=$(KERNEL)/kernel.bin of=OS.img conv=notrunc oflag=seek_bytes seek=7680
-	dd if=$(USER)/stone.bin of=OS.img conv=notrunc oflag=seek_bytes seek=12800
+	dd if=$(USER)/$(STONE)/stoneQ.bin of=OS.img conv=notrunc oflag=seek_bytes seek=12800
+	dd if=$(USER)/$(STONE)/stoneW.bin of=OS.img conv=notrunc oflag=seek_bytes seek=14848
+	dd if=$(USER)/$(STONE)/stoneA.bin of=OS.img conv=notrunc oflag=seek_bytes seek=16896
+	dd if=$(USER)/$(STONE)/stoneS.bin of=OS.img conv=notrunc oflag=seek_bytes seek=18944
 clean:
 	echo "\n"
 	find . -name "*.bin" -type f -delete
diff --git a/step_3/filesystem/FAT.c b/step_3/filesystem/FAT.c
index cd92d65..a1267b1 100644
--- a/step_3/filesystem/FAT.c
+++ b/step_3/filesystem/FAT.c
@@ -15,5 +15,32 @@ FAT_ITEM_T fat_items[] = {
     0xFFFF, // 11
     0xFFFF, // 12
     0xFFFF, // 13
-    0xFFFF, //14
+    0x000F, // 14
+    0x0010, // 15
+    0x0011, // 16
+    0xFFFF, // 17
+    0x0013, // 18
+    0x0014, // 19
+    0x0015, // 20
+    0xFFFF, // 21
+    0x0017, // 22
+    0x0018, // 23
+    0x0019, // 24
+    0xFFFF, // 25
+    0x001B, // 26
+    0x001C, // 27
+    0x001D, // 28
+    0xFFFF, // 29
+    0xFFFF, // 30
+    0xFFFF, // 31
+    0xFFFF, // 32
+    0xFFFF, // 33
+    0xFFFF, // 34
+    0xFFFF, // 35
+    0xFFFF, // 36
+    0xFFFF, // 37
+    0xFFFF, // 38
+    0xFFFF, // 39
+    0xFFFF, // 40
+    0xFFFF, // 41
 };
diff --git a/step_3/filesystem/README.md b/step_3/filesystem/README.md
index ec42b31..9bc1b7f 100644
--- a/step_3/filesystem/README.md
+++ b/step_3/filesystem/README.md
@@ -10,11 +10,19 @@ FAT表2 8-11扇区（4个）512*7 = 3584 [e00~1600]
 内核程序 16-23 512*15= 7680 [1e00~2e00]
 home/ 24 [2e00~3000]
 msg 25 [3000~3200]
-用户程序 26-29 512*25=12800 [3200~3a00]
+用户程序q 26-29 512*25=12800 [3200~3a00]
+用户程序w 30-33 512*29=14848 [3a00~4200]
+用户程序a 34-37 512*33=16896 [4200~4a00]
+用户程序s 38-41 512*37=18944 [4a00~5200]
 ## 软盘结构
 ; 磁道 面 扇区
 ;  0～79     0~1    1~18
-
+1 0 2
+逻辑扇区 面 运算后的结果
+1~18 0  -1/18-> 0
+19~36 1 -1/18-> 1
+37~54 0 -1/18-> 2
+55~72 1 -1/18-> 3
 ## 内存结构
 1:0x7C00: MBR(loader)
 2:0x7E00: DBR
diff --git a/step_3/filesystem/datablock.c b/step_3/filesystem/datablock.c
index 6b663c7..912fb19 100644
--- a/step_3/filesystem/datablock.c
+++ b/step_3/filesystem/datablock.c
@@ -63,8 +63,8 @@ FAT_ITEM msg = {
     13,
     0
 };
-FAT_ITEM user_program = {
-    "stone",
+FAT_ITEM user_programQ = {
+    "stoneQ",
     "bin",
     FAT_rw,
     0, 0, 0, 0, 0, 0,
@@ -72,4 +72,35 @@ FAT_ITEM user_program = {
     0,
     14,
     512*4 // 4 sectors
+};
+
+FAT_ITEM user_programW = {
+    "stoneW",
+    "bin",
+    FAT_rw,
+    0, 0, 0, 0, 0, 0,
+    0,
+    0,
+    18,
+    512*4 // 4 sectors
+};
+FAT_ITEM user_programA = {
+    "stoneA",
+    "bin",
+    FAT_rw,
+    0, 0, 0, 0, 0, 0,
+    0,
+    0,
+    22,
+    512*4 // 4 sectors
+};
+FAT_ITEM user_programS = {
+    "stoneS",
+    "bin",
+    FAT_rw,
+    0, 0, 0, 0, 0, 0,
+    0,
+    0,
+    26,
+    512*4 // 4 sectors
 };
\ No newline at end of file
diff --git a/step_3/filesystem/fsutilities.h b/step_3/filesystem/fsutilities.h
index 9ddee1d..b6eb067 100644
--- a/step_3/filesystem/fsutilities.h
+++ b/step_3/filesystem/fsutilities.h
@@ -2,7 +2,7 @@
 #define __FS_UTILITIES_H_
 #include <stdint.h>
 #define lgsector2sector(X) (((X-1)%18)+1)
-#define lgsector2head(X) ((X-1)/18)
+#define lgsector2head(X) (((X-1)/18)%2)
 #define lgsector2track(X) ((X-1)/36)
 void loadSector(uint16_t track, uint16_t head, uint16_t sector, uint16_t addr, uint16_t num);
 static inline void loadLogicSector(uint16_t lgsector, uint16_t addr, uint16_t num) {
diff --git a/step_3/kernel/Makefile b/step_3/kernel/Makefile
index 38e73cc..f887e7a 100644
--- a/step_3/kernel/Makefile
+++ b/step_3/kernel/Makefile
@@ -9,9 +9,10 @@ ROOT=..
 INCLUDE=../include
 USER=../user
 FILESYSTEM=../filesystem
+STONE=stone
 
 USER_HEADER=$(USER)/user.h $(USER)/terminal.h 
-USER_OBJ=$(USER)/user.o $(USER)/terminal.o $(USER)/stone.o
+USER_OBJ=$(USER)/user.o $(USER)/terminal.o 
 
 all: kernel.bin
 
@@ -31,6 +32,9 @@ $(INCLUDE)/mystring.o:
 $(FILESYSTEM)/fsutilities.o:
 	cd $(FILESYSTEM)/ && make 
 	cd ../kernel
+$(USER)/$(STONE)/stoneQ.o:
+	cd $(USER)/ && make
+	cd ../kernel
 clean:
 	rm *.bin -f 
 	rm *.o -f  
diff --git a/step_3/kernel/kernel.c b/step_3/kernel/kernel.c
index eed19df..571c7c5 100644
--- a/step_3/kernel/kernel.c
+++ b/step_3/kernel/kernel.c
@@ -7,6 +7,7 @@
 #define true 1
 #define false 0
 int main() {
+    // __load_program("stoneS");
     clear_screen();
     draw_str("enter help to get help", 0, 30);
     //draw_char_style('A', 0, 10, G_DEFAULT);
diff --git a/step_3/user/Makefile b/step_3/user/Makefile
index 7c919c5..e0d2ac0 100644
--- a/step_3/user/Makefile
+++ b/step_3/user/Makefile
@@ -6,18 +6,35 @@ AS=nasm
 ASFLAGS=
 
 UTILITIES=../include
-
-all: user.o terminal.o stone.bin
+STONE=stone
+STONE_BIN = $(STONE)/stoneQ.bin $(STONE)/stoneW.bin $(STONE)/stoneA.bin $(STONE)/stoneS.bin
+all: user.o terminal.o $(STONE_BIN)
 
 user.o: user.c $(UTILITIES)/utilities.h
 	$(CC) $(CCFLAGS) -c $^
-terminal.o: terminal.c $(UTILITIES)/utilities.h stone.h
+terminal.o: terminal.c $(UTILITIES)/utilities.h 
 	$(CC) $(CCFLAGS) -c $^
 
-stone.bin: stone.o $(UTILITIES)/utilities.o
+$(STONE)/stoneQ.bin: $(STONE)/stoneQ.o $(UTILITIES)/utilities.o
 	$(LD) $(LDFLAGS) -Ttext 0x6C00 --oformat binary -o $@ $^
-stone.o: stone.c $(UTILITIES)/utilities.h
-	$(CC) $(CCFLAGS) -c $^
+$(STONE)/stoneQ.o: $(STONE)/stone.c $(UTILITIES)/utilities.h
+	$(CC) $(CCFLAGS) -c $< -D UL -o $@
+
+$(STONE)/stoneW.bin: $(STONE)/stoneW.o $(UTILITIES)/utilities.o
+	$(LD) $(LDFLAGS) -Ttext 0x6C00 --oformat binary -o $@ $^
+$(STONE)/stoneW.o: $(STONE)/stone.c $(UTILITIES)/utilities.h
+	$(CC) $(CCFLAGS) -c $< -D UR -o $@
+
+$(STONE)/stoneS.bin: $(STONE)/stoneS.o $(UTILITIES)/utilities.o
+	$(LD) $(LDFLAGS) -Ttext 0x6C00 --oformat binary -o $@ $^
+$(STONE)/stoneS.o: $(STONE)/stone.c $(UTILITIES)/utilities.h
+	$(CC) $(CCFLAGS) -c $< -D DR -o $@
+
+$(STONE)/stoneA.bin: $(STONE)/stoneA.o $(UTILITIES)/utilities.o
+	$(LD) $(LDFLAGS) -Ttext 0x6C00 --oformat binary -o $@ $^
+$(STONE)/stoneA.o: $(STONE)/stone.c $(UTILITIES)/utilities.h
+	$(CC) $(CCFLAGS) -c $< -D DL -o $@
+
 
 $(UTILITIES)/utilities.o:
 	cd $(UTILITIES)/ && make
diff --git a/step_3/user/stone.h b/step_3/user/stone.h
deleted file mode 100644
index de5ced0..0000000
--- a/step_3/user/stone.h
+++ /dev/null
@@ -1,4 +0,0 @@
-#ifndef __STONE_H_
-#define __STONE_H_
-int stone();
-#endif
\ No newline at end of file
diff --git a/step_3/user/stone.c b/step_3/user/stone/stone.c
similarity index 61%
rename from step_3/user/stone.c
rename to step_3/user/stone/stone.c
index a4fe954..8515ed9 100644
--- a/step_3/user/stone.c
+++ b/step_3/user/stone/stone.c
@@ -1,7 +1,8 @@
 __asm__("jmpl $0, $stone\n");
 
-#include "../include/utilities.h"
-#define DELAY (1e5)
+#include "../../include/utilities.h"
+#include "stone.h"
+#define DELAY (5 * 1e5)
 int getKbHit();
 void checkBound();
 
@@ -11,10 +12,11 @@ int deltax;
 int deltay;
 int stone() {
     // return 0;
-    x = 5;
-    y = 5;
+    x = _X;
+    y = _Y;
     deltax = 1;
     deltay = 1;
+    uint8_t style = 0;
 
     clear_screen();
     while(1) {
@@ -24,11 +26,13 @@ int stone() {
         int delay = DELAY;
         while ((--delay) >= 0) continue;
 
+        draw_str(" ", y, x);
         x += deltax;
         y += deltay;
 
         checkBound();
-        draw_str("A", y, x);
+        draw_str_style("A", y, x, style & 15);
+        style++;
     }
 }
 
@@ -41,8 +45,8 @@ int getKbHit() {
     return 0;
 }
 void checkBound() {
-    if (x == 0) deltax = 1;
-    if (x == 79) deltax = -1;
-    if (y == 0) deltay = 1;
-    if (y == 24) deltay = -1;
+    if (x <= LEFT_B) deltax = 1;
+    if (x >= RIGHT_B) deltax = -1;
+    if (y <= UP_B) deltay = 1;
+    if (y >= DOWN_B) deltay = -1;
 }
\ No newline at end of file
diff --git a/step_3/user/stone/stone.h b/step_3/user/stone/stone.h
new file mode 100644
index 0000000..a68bce4
--- /dev/null
+++ b/step_3/user/stone/stone.h
@@ -0,0 +1,33 @@
+#ifndef __STONE_H_
+#define __STONE_H_
+#if defined(UL)
+    #define _X 5
+    #define _Y 5
+    #define LEFT_B 1
+    #define RIGHT_B 40
+    #define UP_B 1
+    #define DOWN_B 12
+#elif defined(UR)
+    #define _X 70
+    #define _Y 5
+    #define LEFT_B 40
+    #define RIGHT_B 79
+    #define UP_B 1
+    #define DOWN_B 12
+#elif defined(DL)
+    #define _X 5
+    #define _Y 20
+    #define LEFT_B 1
+    #define RIGHT_B 40
+    #define UP_B 13
+    #define DOWN_B 24
+#elif defined(DR)
+    #define _X 70
+    #define _Y 20
+    #define LEFT_B 40
+    #define RIGHT_B 79
+    #define UP_B 13
+    #define DOWN_B 24
+#endif
+
+#endif
\ No newline at end of file
diff --git a/step_3/user/terminal.c b/step_3/user/terminal.c
index 579e9c0..0236d7d 100644
--- a/step_3/user/terminal.c
+++ b/step_3/user/terminal.c
@@ -1,6 +1,5 @@
 #include "../include/utilities.h"
 #include "../include/mystring.h"
-#include "stone.h"
 #include "../filesystem/API/fsapi.h"
 
 #define BACK_SPACE 8
@@ -95,11 +94,15 @@ void parseCMD(int CMDindex) {
         FAT_ITEM* pfat = CUR_DIR;
         if (__FAT_showable_item(pfat)) {
             putln(pfat->filename);
+            // putiln(pfat->blow_cluster);
+            // putiln(pfat->filesize);
         }
         while (__has_next_item(pfat)) {
             pfat = __next_item(pfat);
             if (__FAT_showable_item(pfat)) {
                 putln(pfat->filename);
+                // putiln(pfat->blow_cluster);
+                // putiln(pfat->filesize);
             }
         }
     }