diff --git a/build.py b/build.py
index 42b9f8f..39e71f5 100644
--- a/build.py
+++ b/build.py
@@ -21,6 +21,7 @@ if check_os() == "Windows":
     cd = os.getcwd()  # 获取当前执行目录 'D:\CrashPowerDOS-main\'
     out = "target"
     dir_ = "\\"
+    src = "src\\"
 elif check_os() == "Linux":
     gcc = 'gcc.exe -w -std=gnu99 -I include/ -std=gnu99 -ffreestanding -c -Wincompatible-pointer-types '
     asm = 'gcc.exe'
@@ -29,6 +30,7 @@ elif check_os() == "Linux":
     cd = os.getcwd()  # 获取当前执行目录 '\mnt\d\CrashPowerDOS-main\'
     out = "target"
     dir_ = "/"
+    src = "./src/"
 
 
 def clean():
@@ -41,13 +43,13 @@ def clean():
 def build_boot():  # 构建引导程序
     print("Building boot source code...")
     status = True
-    for file in os.listdir(cd + dir_ + 'boot'):
+    for file in os.listdir(cd + dir_ + src + 'boot'):
         if status and file == 'boot.asm':
-            cmd = cd + asm + " " + cd + dir_ + "boot" + dir_ + file + " -o " + cd + dir_ + "target" + dir_ + \
+            cmd = cd + asm + " " + cd + dir_ + src + "boot" + dir_ + file + " -o " + cd + dir_ + "target" + dir_ + \
                   file.split(".")[0] + ".o"
             status = False
         else:
-            cmd = nasm + " " + cd + dir_ + "boot" + dir_ + file + " -o " + cd + dir_ + "target" + dir_ + \
+            cmd = nasm + " " + cd + dir_ + src + "boot" + dir_ + file + " -o " + cd + dir_ + "target" + dir_ + \
                   file.split(".")[0] + ".o"
         e = os.system(cmd)  # os.system 执行命令 e为返回值(非0即不正常退出,可做判断终止构建流程)
         if e != 0:
@@ -57,8 +59,17 @@ def build_boot():  # 构建引导程序
 
 def build_driver():  # 构建内置驱动程序
     print("Building driver source code...")
-    for file in os.listdir(cd + dir_ + 'driver'):
-        cmd = cd + gcc + "-O2 " + "driver" + dir_ + file + " -o " + "target" + dir_ + file.split(".")[0] + ".o"
+    status_pci = True
+    status_ide = True
+    for file in os.listdir(cd + dir_ + src + 'driver'):
+        if status_pci and (file == 'pci.c'):
+            cmd = cd + gcc + "-O0 " + src + "driver" + dir_ + file + " -o " + "target" + dir_ + file.split(".")[0] + ".o"
+            status_pci = False
+        elif status_ide and (file == 'ide.c'):
+            cmd = cd + gcc + "-O0 " + src + "driver" + dir_ + file + " -o " + "target" + dir_ + file.split(".")[0] + ".o"
+            status_ide = False
+        else:
+            cmd = cd + gcc + "-O0 " + src + "driver" + dir_ + file + " -o " + "target" + dir_ + file.split(".")[0] + ".o"
         e = os.system(cmd)
         if e != 0:
             return -1
@@ -67,8 +78,8 @@ def build_driver():  # 构建内置驱动程序
 
 def build_kernel():  # 构建内核本体
     print("Building kernel source code...")
-    for file in os.listdir(cd + dir_ + 'kernel'):
-        cmd = cd + gcc + "-O2 " + "kernel" + dir_ + file + " -o " + "target" + dir_ + file.split(".")[0] + ".o"
+    for file in os.listdir(cd + dir_ + src + 'kernel'):
+        cmd = cd + gcc + "-O0 " + src + "kernel" + dir_ + file + " -o " + "target" + dir_ + file.split(".")[0] + ".o"
         e = os.system(cmd)
         if e != 0:
             return -1
@@ -77,8 +88,8 @@ def build_kernel():  # 构建内核本体
 
 def build_data():  # 构建常用工具
     print("Building util source code...")
-    for file in os.listdir(cd + dir_ + 'util'):
-        cmd = cd + gcc + "-O2 " + "util" + dir_ + file + " -o " + "target" + dir_ + file.split(".")[0] + ".o"
+    for file in os.listdir(cd + dir_ + src + 'util'):
+        cmd = cd + gcc + "-O2 " + src + "util" + dir_ + file + " -o " + "target" + dir_ + file.split(".")[0] + ".o"
         e = os.system(cmd)
         if e != 0:
             return -1
@@ -87,8 +98,8 @@ def build_data():  # 构建常用工具
 
 def build_sysapp():  # 构建内置系统应用
     print("Building sysapp source code...")
-    for file in os.listdir(cd + dir_ + 'sysapp'):
-        cmd = cd + gcc + "-O2 " + "sysapp" + dir_ + file + " -o " + "target" + dir_ + file.split(".")[0] + ".o"
+    for file in os.listdir(cd + dir_ + src + 'sysapp'):
+        cmd = cd + gcc + "-O0 " + src + "sysapp" + dir_ + file + " -o " + "target" + dir_ + file.split(".")[0] + ".o"
         e = os.system(cmd)
         if e != 0:
             return -1
@@ -97,8 +108,8 @@ def build_sysapp():  # 构建内置系统应用
 
 def build_network():  # 构建网络系统
     print("Building network source code...")
-    for file in os.listdir(cd + dir_ + 'network'):
-        cmd = cd + gcc + "-O2 " + "network" + dir_ + file + " -o " + "target" + dir_ + file.split(".")[0] + ".o"
+    for file in os.listdir(cd + dir_ + src + 'network'):
+        cmd = cd + gcc + "-O0 " + src + "network" + dir_ + file + " -o " + "target" + dir_ + file.split(".")[0] + ".o"
         e = os.system(cmd)
         if e != 0:
             return -1
@@ -107,8 +118,8 @@ def build_network():  # 构建网络系统
 
 def build_fs():  # 构建文件系统
     print("Building fs source code...")
-    for file in os.listdir(cd + dir_ + 'fs'):
-        cmd = cd + gcc + " " + "fs" + dir_ + file + " -o " + "target" + dir_ + file.split(".")[0] + ".o"
+    for file in os.listdir(cd + dir_ + src + 'fs'):
+        cmd = cd + gcc + " " + src + "fs" + dir_ + file + " -o " + "target" + dir_ + file.split(".")[0] + ".o"
         e = os.system(cmd)
         if e != 0:
             return -1
@@ -162,3 +173,5 @@ a = linker()
 if a != 0:
     exit(-1)
 print("Launching i386 vm...")
+
+# launch()
diff --git a/include/date.h b/include/date.h
deleted file mode 100644
index a764a02..0000000
--- a/include/date.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef CRASHPOWEROS_DATE_H
-#define CRASHPOWEROS_DATE_H
-
-int setup_date();
-void launch_date();
-
-#endif //CRASHPOWEROS_DATE_H
diff --git a/include/pcat.h b/include/pcat.h
deleted file mode 100644
index 34c54b0..0000000
--- a/include/pcat.h
+++ /dev/null
@@ -1,17 +0,0 @@
-#ifndef CRASHPOWEROS_PCAT_H
-#define CRASHPOWEROS_PCAT_H
-
-#include "task.h"
-
-struct pcat_process{
-    uint32_t line;
-    uint32_t chars;
-    uint32_t buf_x,buf_y;
-    uint32_t buffer_screen;
-    int keys;
-    struct File *file;
-};
-
-void pcat_launch(struct File *file);
-
-#endif
diff --git a/boot/asmfunc.asm b/src/boot/asmfunc.asm
similarity index 100%
rename from boot/asmfunc.asm
rename to src/boot/asmfunc.asm
diff --git a/boot/boot.asm b/src/boot/boot.asm
similarity index 100%
rename from boot/boot.asm
rename to src/boot/boot.asm
diff --git a/boot/graphics.asm b/src/boot/graphics.asm
similarity index 100%
rename from boot/graphics.asm
rename to src/boot/graphics.asm
diff --git a/boot/interrupt.asm b/src/boot/interrupt.asm
similarity index 100%
rename from boot/interrupt.asm
rename to src/boot/interrupt.asm
diff --git a/boot/io.asm b/src/boot/io.asm
similarity index 100%
rename from boot/io.asm
rename to src/boot/io.asm
diff --git a/driver/acpi.c b/src/driver/acpi.c
similarity index 100%
rename from driver/acpi.c
rename to src/driver/acpi.c
diff --git a/driver/cmos.c b/src/driver/cmos.c
similarity index 100%
rename from driver/cmos.c
rename to src/driver/cmos.c
diff --git a/driver/dma.c b/src/driver/dma.c
similarity index 100%
rename from driver/dma.c
rename to src/driver/dma.c
diff --git a/driver/ide.c b/src/driver/ide.c
similarity index 100%
rename from driver/ide.c
rename to src/driver/ide.c
diff --git a/driver/keyboard.c b/src/driver/keyboard.c
similarity index 100%
rename from driver/keyboard.c
rename to src/driver/keyboard.c
diff --git a/driver/pci.c b/src/driver/pci.c
similarity index 98%
rename from driver/pci.c
rename to src/driver/pci.c
index 306bd52..f9acb23 100644
--- a/driver/pci.c
+++ b/src/driver/pci.c
@@ -105,6 +105,7 @@ void pci_config(unsigned int bus, unsigned int f, unsigned int equipment, unsign
 
 void init_pci(){
     printf("[\035kernel\036]: Loading pci device...\n");
+    int PCI_NUM = 0;
 
     PCI_ADDR_BASE = kmalloc(1 * 1024 * 1024);
     unsigned int i, BUS, Equipment, F, ADDER, *i1;
@@ -144,7 +145,7 @@ void init_pci(){
                                 PCI_DATA1 += 4;
                                 int i = ((uint32_t)(bar.address));
                                 memcpy(PCI_DATA1, &i, 4);
-                                printf("[pci]: Device Address: %08x Size: %d\n",bar.address,bar.size);
+                                PCI_NUM++;
                             }
                         }
                         PCI_DATA = PCI_DATA + 0x110 + 4;
@@ -154,4 +155,6 @@ void init_pci(){
             }
         }
     }
+
+    printf("[pci]: Device Loaded: %d\n",PCI_NUM);
 }
diff --git a/driver/vbe.c b/src/driver/vbe.c
similarity index 79%
rename from driver/vbe.c
rename to src/driver/vbe.c
index 853224c..af98eac 100644
--- a/driver/vbe.c
+++ b/src/driver/vbe.c
@@ -17,12 +17,35 @@ extern uint8_t plfont[];
 
 bool vbe_status;
 
+static void copy_char(uint32_t *vram, int off_x, int off_y, int x, int y, int x1,
+                      int y1, int xsize) {
+    for (int i = 0; i < 16; i++) {
+        for (int j = 0; j < 8; j++) {
+            vram[(y + i + off_y) * xsize + (j + x + off_x)] =
+                    vram[(y1 + i + off_y) * xsize + (j + x1 + off_x)];
+        }
+    }
+}
+
 void vbe_scroll() {
     if (cx > c_width) {
         cx = 0;
         cy++;
     } else cx++;
 
+    if (cy >= c_height){
+        cy = c_height - 1;
+        memcpy((void *)screen,
+               (void *)screen + width * 16 * sizeof(uint32_t),
+               width * (height - 16) * sizeof(uint32_t));
+        for (int i = (width * (height - 16));
+             i != (width * height); i++)  {
+            screen[i] = back_color;
+        }
+    }
+
+
+    /*
     if (cy >= c_height) {
         cy = c_height - 1;
         for (int i = 0; i < height; i++) {
@@ -44,6 +67,7 @@ void vbe_scroll() {
             screen[height * (width + j) + i] = back_color;
         }
     }
+     */
 }
 
 void vbe_draw_char(char c, int32_t x, int32_t y) {
@@ -56,8 +80,9 @@ void vbe_draw_char(char c, int32_t x, int32_t y) {
         return;
     }
 
-    unsigned char *font;
-    font = plfont;
+
+    uint8_t *font = ascfont;
+
     font += c * 16;
     for (int i = 0; i < 16; i++) {
         for (int j = 0; j < 9; j++) {
@@ -95,6 +120,10 @@ void vbe_putchar(char ch) {
         return;
     } else if (ch == '\r') {
         cx = 0;
+        return;
+    } else if(ch == '\t'){
+        vbe_putchar("  ");
+        return;
     } else if (ch == '\b' && cx > 0) {
         cx -= 1;
         if (cx == 0) {
@@ -139,19 +168,10 @@ void initVBE(multiboot_t *info) {
     screen = (uint32_t) info->framebuffer_addr;
     width = info->framebuffer_width;
     height = info->framebuffer_height;
-    color = 0xFFFFFF;
-    back_color = 0x310924;
+    color = 0xc6c6c6;
+    back_color = 0x191f42;
     c_width = width / 9;
     c_height = height / 16;
 
     vbe_clear();
-
-    /*
-    for (int i = 0; i < c_height; i++){
-        vbe_putchar('A');
-        vbe_putchar('\n');
-    }
-
-    while (1) io_hlt();
-     */
 }
diff --git a/driver/vdisk.c b/src/driver/vdisk.c
similarity index 100%
rename from driver/vdisk.c
rename to src/driver/vdisk.c
diff --git a/driver/vga.c b/src/driver/vga.c
similarity index 100%
rename from driver/vga.c
rename to src/driver/vga.c
diff --git a/fs/fat.c b/src/fs/fat.c
similarity index 100%
rename from fs/fat.c
rename to src/fs/fat.c
diff --git a/fs/iso9660.c b/src/fs/iso9660.c
similarity index 100%
rename from fs/iso9660.c
rename to src/fs/iso9660.c
diff --git a/fs/vfs.c b/src/fs/vfs.c
similarity index 100%
rename from fs/vfs.c
rename to src/fs/vfs.c
diff --git a/include/acpi.h b/src/include/acpi.h
similarity index 100%
rename from include/acpi.h
rename to src/include/acpi.h
diff --git a/include/arp.h b/src/include/arp.h
similarity index 100%
rename from include/arp.h
rename to src/include/arp.h
diff --git a/include/cmos.h b/src/include/cmos.h
similarity index 100%
rename from include/cmos.h
rename to src/include/cmos.h
diff --git a/include/common.h b/src/include/common.h
similarity index 100%
rename from include/common.h
rename to src/include/common.h
diff --git a/include/cpp.h b/src/include/cpp.h
similarity index 100%
rename from include/cpp.h
rename to src/include/cpp.h
diff --git a/include/description_table.h b/src/include/description_table.h
similarity index 100%
rename from include/description_table.h
rename to src/include/description_table.h
diff --git a/include/dhcp.h b/src/include/dhcp.h
similarity index 100%
rename from include/dhcp.h
rename to src/include/dhcp.h
diff --git a/include/dma.h b/src/include/dma.h
similarity index 100%
rename from include/dma.h
rename to src/include/dma.h
diff --git a/include/dns.h b/src/include/dns.h
similarity index 100%
rename from include/dns.h
rename to src/include/dns.h
diff --git a/include/etherframe.h b/src/include/etherframe.h
similarity index 100%
rename from include/etherframe.h
rename to src/include/etherframe.h
diff --git a/include/fat.h b/src/include/fat.h
similarity index 100%
rename from include/fat.h
rename to src/include/fat.h
diff --git a/include/fifo.h b/src/include/fifo.h
similarity index 100%
rename from include/fifo.h
rename to src/include/fifo.h
diff --git a/include/graphics.h b/src/include/graphics.h
similarity index 100%
rename from include/graphics.h
rename to src/include/graphics.h
diff --git a/include/ide.h b/src/include/ide.h
similarity index 100%
rename from include/ide.h
rename to src/include/ide.h
diff --git a/include/io.h b/src/include/io.h
similarity index 100%
rename from include/io.h
rename to src/include/io.h
diff --git a/include/ipv4.h b/src/include/ipv4.h
similarity index 100%
rename from include/ipv4.h
rename to src/include/ipv4.h
diff --git a/include/iso9660.h b/src/include/iso9660.h
similarity index 100%
rename from include/iso9660.h
rename to src/include/iso9660.h
diff --git a/include/isr.h b/src/include/isr.h
similarity index 100%
rename from include/isr.h
rename to src/include/isr.h
diff --git a/include/keyboard.h b/src/include/keyboard.h
similarity index 100%
rename from include/keyboard.h
rename to src/include/keyboard.h
diff --git a/include/list.h b/src/include/list.h
similarity index 100%
rename from include/list.h
rename to src/include/list.h
diff --git a/include/memory.h b/src/include/memory.h
similarity index 91%
rename from include/memory.h
rename to src/include/memory.h
index 55529d7..f1a2ef9 100644
--- a/include/memory.h
+++ b/src/include/memory.h
@@ -47,7 +47,7 @@ typedef union header {
 
 uint32_t memory_usage();
 
-void *memcpy(void *dst_, const void *src_, uint32_t size);
+void* memcpy(void* s, const void* ct, size_t n);
 
 int memcmp(const void *a_, const void *b_, uint32_t size);
 
@@ -89,6 +89,8 @@ void memclean(char *s, int len);
 
 void *realloc(void *ptr, uint32_t size);
 
-page_t *get_phy_page(uint32_t address, int make, page_directory_t *dir);
+void alloc_frame_line(page_t *page, unsigned line,int is_kernel, int is_writable);
+
+void free_frame(page_t *page);
 
 #endif //CRASHPOWEROS_MEMORY_H
diff --git a/include/multiboot.h b/src/include/multiboot.h
similarity index 100%
rename from include/multiboot.h
rename to src/include/multiboot.h
diff --git a/include/multiboot2.h b/src/include/multiboot2.h
similarity index 100%
rename from include/multiboot2.h
rename to src/include/multiboot2.h
diff --git a/include/net.h b/src/include/net.h
similarity index 91%
rename from include/net.h
rename to src/include/net.h
index 58ef110..55140c2 100644
--- a/include/net.h
+++ b/src/include/net.h
@@ -1,7 +1,7 @@
 #ifndef CRASHPOWEROS_NET_H
 #define CRASHPOWEROS_NET_H
 
-#include "../include/common.h"
+#include "common.h"
 
 typedef struct {
     bool (*find)();
diff --git a/src/include/panic.h b/src/include/panic.h
new file mode 100644
index 0000000..44d25ca
--- /dev/null
+++ b/src/include/panic.h
@@ -0,0 +1,4 @@
+#ifndef CRASHPOWEROS_PANIC_H
+#define CRASHPOWEROS_PANIC_H
+
+#endif
diff --git a/include/pci.h b/src/include/pci.h
similarity index 100%
rename from include/pci.h
rename to src/include/pci.h
diff --git a/include/pcnet.h b/src/include/pcnet.h
similarity index 100%
rename from include/pcnet.h
rename to src/include/pcnet.h
diff --git a/include/printf.h b/src/include/printf.h
similarity index 100%
rename from include/printf.h
rename to src/include/printf.h
diff --git a/include/queue.h b/src/include/queue.h
similarity index 100%
rename from include/queue.h
rename to src/include/queue.h
diff --git a/include/rtl8139.h b/src/include/rtl8139.h
similarity index 100%
rename from include/rtl8139.h
rename to src/include/rtl8139.h
diff --git a/include/shell.h b/src/include/shell.h
similarity index 100%
rename from include/shell.h
rename to src/include/shell.h
diff --git a/include/socket.h b/src/include/socket.h
similarity index 100%
rename from include/socket.h
rename to src/include/socket.h
diff --git a/include/syscall.h b/src/include/syscall.h
similarity index 100%
rename from include/syscall.h
rename to src/include/syscall.h
diff --git a/include/task.h b/src/include/task.h
similarity index 100%
rename from include/task.h
rename to src/include/task.h
diff --git a/include/tcp.h b/src/include/tcp.h
similarity index 100%
rename from include/tcp.h
rename to src/include/tcp.h
diff --git a/include/timer.h b/src/include/timer.h
similarity index 100%
rename from include/timer.h
rename to src/include/timer.h
diff --git a/include/udp.h b/src/include/udp.h
similarity index 100%
rename from include/udp.h
rename to src/include/udp.h
diff --git a/include/vdisk.h b/src/include/vdisk.h
similarity index 97%
rename from include/vdisk.h
rename to src/include/vdisk.h
index fd0ec34..aa830cf 100644
--- a/include/vdisk.h
+++ b/src/include/vdisk.h
@@ -3,7 +3,7 @@
 
 #define SECTORS_ONCE 8
 
-#include "../include/common.h"
+#include "common.h"
 
 typedef struct {
     void (*Read)(char drive, unsigned char *buffer, unsigned int number,
diff --git a/include/vfs.h b/src/include/vfs.h
similarity index 100%
rename from include/vfs.h
rename to src/include/vfs.h
diff --git a/kernel/fifo.c b/src/kernel/fifo.c
similarity index 100%
rename from kernel/fifo.c
rename to src/kernel/fifo.c
diff --git a/kernel/gdt.c b/src/kernel/gdt.c
similarity index 100%
rename from kernel/gdt.c
rename to src/kernel/gdt.c
diff --git a/kernel/idt.c b/src/kernel/idt.c
similarity index 100%
rename from kernel/idt.c
rename to src/kernel/idt.c
diff --git a/kernel/kernel.c b/src/kernel/kernel.c
similarity index 92%
rename from kernel/kernel.c
rename to src/kernel/kernel.c
index b345a75..294b986 100644
--- a/kernel/kernel.c
+++ b/src/kernel/kernel.c
@@ -9,7 +9,6 @@
 #include "../include/cmos.h"
 #include "../include/keyboard.h"
 #include "../include/shell.h"
-#include "../include/date.h"
 #include "../include/acpi.h"
 #include "../include/syscall.h"
 #include "../include/vdisk.h"
@@ -85,7 +84,7 @@ void kernel_main(multiboot_t *multiboot) {
     printf("[kernel]: Keyboard driver load success!\n");
     io_sti();
 
-    kernel_thread(cur_task,NULL,"CPOS-VBE-SERVICE");
+    //kernel_thread(cur_task,NULL,"CPOS-VBE-SERVICE");
 
     init_pit();
     init_pci();
@@ -99,22 +98,17 @@ void kernel_main(multiboot_t *multiboot) {
     vfs_mount_disk('A','A');
     if(vfs_change_disk('A'))
         printf("[FileSystem]: Change disk win!\n");
-    else {
-        for(;;);
-    }
+
     if(pcnet_find_card()){
         //init_pcnet_card();
     } else printf("[kernel]: Cannot found pcnet.\n");
 
     print_cpu_id();
 
-    //printf("Memory: %dMB.",(multiboot->mem_upper + multiboot->mem_lower)/1024/1024);
-
     clock_sleep(25);
 
     int pid = kernel_thread(setup_shell, NULL, "CPOS-Shell");
     kernel_thread(check_task,&pid,"CPOS-SHELL-CHECK");
-    launch_date();
 
     for (;;) {
         io_hlt();
diff --git a/kernel/kheap.c b/src/kernel/kheap.c
similarity index 100%
rename from kernel/kheap.c
rename to src/kernel/kheap.c
diff --git a/kernel/memory.c b/src/kernel/memory.c
similarity index 86%
rename from kernel/memory.c
rename to src/kernel/memory.c
index a0f1dca..af7d092 100644
--- a/kernel/memory.c
+++ b/src/kernel/memory.c
@@ -9,11 +9,12 @@ void memclean(char *s, int len) {
     return;
 }
 
-void *memcpy(void *dst_, const void *src_, uint32_t size) {
-    uint8_t *dst = dst_;
-    const uint8_t *src = src_;
-    while (size-- > 0) *dst++ = *src++;
-    return (void *) src_;
+void* memcpy(void* s, const void* ct, size_t n) {
+    if (NULL == s || NULL == ct || n <= 0)
+        return NULL;
+    while (n--)
+        *(char*)s++ = *(char*)ct++;
+    return s;
 }
 
 int memcmp(const void *a_, const void *b_, uint32_t size) {
diff --git a/kernel/multiboot2.c b/src/kernel/multiboot2.c
similarity index 100%
rename from kernel/multiboot2.c
rename to src/kernel/multiboot2.c
diff --git a/kernel/page.c b/src/kernel/page.c
similarity index 99%
rename from kernel/page.c
rename to src/kernel/page.c
index 68f14b1..fecd9cb 100644
--- a/kernel/page.c
+++ b/src/kernel/page.c
@@ -76,6 +76,7 @@ void alloc_frame_line(page_t *page, unsigned line,int is_kernel, int is_writable
     page->frame = line / 0x1000;
 
 }
+
 void free_frame(page_t *page) {
     uint32_t frame = page->frame;
     if (!frame) return;
@@ -211,6 +212,8 @@ void init_page(multiboot_t *mboot) {
         alloc_frame_line(get_page(j,1,kernel_directory),j,0,0);
         j += 0x1000;
     }
+
+
     for (int i = KHEAP_START; i < KHEAP_START + KHEAP_INITIAL_SIZE; i++) {
         alloc_frame(get_page(i, 1, kernel_directory), 0, 0);
     }
diff --git a/kernel/syscall.c b/src/kernel/syscall.c
similarity index 89%
rename from kernel/syscall.c
rename to src/kernel/syscall.c
index 24b9028..6b78b5a 100644
--- a/kernel/syscall.c
+++ b/src/kernel/syscall.c
@@ -1,4 +1,5 @@
 #include "../include/syscall.h"
+#include "../include/printf.h"
 #include "../include/isr.h"
 
 void syscall_handler(registers_t *regs){
@@ -7,6 +8,8 @@ void syscall_handler(registers_t *regs){
 
     void *location = NULL;//syscalls[regs->eax];
 
+    printf("Syscall Win: %08x\n",regs->eax);
+
     int ret;
     asm volatile (" \
       push %1; \
diff --git a/kernel/task.c b/src/kernel/task.c
similarity index 99%
rename from kernel/task.c
rename to src/kernel/task.c
index 0d7410c..5ed51ba 100644
--- a/kernel/task.c
+++ b/src/kernel/task.c
@@ -159,7 +159,6 @@ void change_task_to(struct task_struct *next) {
 
         switch_page_directory(current->pgd_dir);
         switch_to(&(prev->context), &(current->context));
-
     }
 }
 
diff --git a/kernel/timer.c b/src/kernel/timer.c
similarity index 100%
rename from kernel/timer.c
rename to src/kernel/timer.c
diff --git a/network/arp.c b/src/network/arp.c
similarity index 100%
rename from network/arp.c
rename to src/network/arp.c
diff --git a/network/dhcp.c b/src/network/dhcp.c
similarity index 100%
rename from network/dhcp.c
rename to src/network/dhcp.c
diff --git a/network/dns.c b/src/network/dns.c
similarity index 100%
rename from network/dns.c
rename to src/network/dns.c
diff --git a/network/etherframe.c b/src/network/etherframe.c
similarity index 100%
rename from network/etherframe.c
rename to src/network/etherframe.c
diff --git a/network/ipv4.c b/src/network/ipv4.c
similarity index 100%
rename from network/ipv4.c
rename to src/network/ipv4.c
diff --git a/network/net.c b/src/network/net.c
similarity index 100%
rename from network/net.c
rename to src/network/net.c
diff --git a/network/pcnet.c b/src/network/pcnet.c
similarity index 100%
rename from network/pcnet.c
rename to src/network/pcnet.c
diff --git a/network/rtl8139.c b/src/network/rtl8139.c
similarity index 100%
rename from network/rtl8139.c
rename to src/network/rtl8139.c
diff --git a/network/socket.c b/src/network/socket.c
similarity index 100%
rename from network/socket.c
rename to src/network/socket.c
diff --git a/network/tcp.c b/src/network/tcp.c
similarity index 100%
rename from network/tcp.c
rename to src/network/tcp.c
diff --git a/network/udp.c b/src/network/udp.c
similarity index 100%
rename from network/udp.c
rename to src/network/udp.c
diff --git a/src/sysapp/panic.c b/src/sysapp/panic.c
new file mode 100644
index 0000000..8a224f4
--- /dev/null
+++ b/src/sysapp/panic.c
@@ -0,0 +1 @@
+#include "../include/panic.h"
diff --git a/sysapp/shell.c b/src/sysapp/shell.c
similarity index 94%
rename from sysapp/shell.c
rename to src/sysapp/shell.c
index 83321c2..180e6b6 100644
--- a/sysapp/shell.c
+++ b/src/sysapp/shell.c
@@ -213,6 +213,27 @@ void cmd_cd(int argc, char **argv) {
     if (vfs_change_path(argv[1]) == 0) printf("Invalid path.\n");
 }
 
+void cmd_type(int argc,char ** argv){
+    if (argc == 1) {
+        print("[Shell-TYPE]: If there are too few parameters, please specify the path.\n");
+        return;
+    }
+    char *buffer;
+    buffer = (char*) kmalloc(vfs_filesize(argv[1]));
+
+    if(buffer == NULL){
+        printf("Cannot read file.\n");
+        return;
+    }
+
+    if(vfs_readfile(argv[1],buffer))
+        printf("%s",buffer);
+    else printf("Cannot read file.\n");
+
+    kfree(buffer);
+    print("\n");
+}
+
 void cmd_disk(int argc, char **argv) {
     if (argc > 1) {
         if (!strcmp("list", argv[1])) {
@@ -285,6 +306,7 @@ char *user() {
 
 void setup_shell() {
     char *user1 = "default";//user();
+
     screen_clear();
 
     printf("Welcome to %s %s (CPOS Kernel x86_64)\n"
@@ -324,8 +346,8 @@ void setup_shell() {
 
         if (!strcmp("version", argv[0]))
             printf("%s for x86 [%s]\n", OS_NAME, OS_VERSION);
-        else if (!strcmp("echo", argv[0]))
-            cmd_echo(argc, argv);
+        else if (!strcmp("type", argv[0]))
+            cmd_type(argc, argv);
         else if (!strcmp("clear", argv[0]))
             screen_clear();
         else if (!strcmp("proc", argv[0]))
@@ -352,7 +374,7 @@ void setup_shell() {
             print("-=[CoolPotShell Helper]=-\n");
             print("help ? h              Print shell help info.\n");
             print("version               Print os version.\n");
-            print("echo       <msg>      Print message.\n");
+            print("type       <name>     Read a file.\n");
             print("ls                    List all files.\n");
             print("mkdir      <name>     Make a directory.\n");
             print("del rm     <name>     Delete a file.\n");
diff --git a/util/base.cpp b/src/util/base.cpp
similarity index 100%
rename from util/base.cpp
rename to src/util/base.cpp
diff --git a/util/common.c b/src/util/common.c
similarity index 100%
rename from util/common.c
rename to src/util/common.c
diff --git a/util/font.c b/src/util/font.c
similarity index 100%
rename from util/font.c
rename to src/util/font.c
diff --git a/util/list.c b/src/util/list.c
similarity index 100%
rename from util/list.c
rename to src/util/list.c
diff --git a/util/printf.c b/src/util/printf.c
similarity index 100%
rename from util/printf.c
rename to src/util/printf.c
diff --git a/util/queue.c b/src/util/queue.c
similarity index 100%
rename from util/queue.c
rename to src/util/queue.c
diff --git a/util/rand.c b/src/util/rand.c
similarity index 100%
rename from util/rand.c
rename to src/util/rand.c
diff --git a/sysapp/date.c b/sysapp/date.c
deleted file mode 100644
index cb22618..0000000
--- a/sysapp/date.c
+++ /dev/null
@@ -1,32 +0,0 @@
-#include "../include/date.h"
-#include "../include/cmos.h"
-#include "../include/graphics.h"
-#include "../include/timer.h"
-#include "../include/common.h"
-
-extern uint16_t *terminal_buffer;
-extern uint8_t terminal_color;
-extern bool vbe_status;
-
-int date_pid;
-
-void launch_date(){
-    if(!vbe_status)
-        date_pid = kernel_thread(setup_date, NULL, "CPOS-Date");
-}
-
-int setup_date(){
-    char* date_info;
-    int i;
-    while (1){
-        clock_sleep(5);
-        date_info = get_date_time(); //11
-        i = 0;
-        for(size_t x = VGA_WIDTH - 19; x < VGA_WIDTH ; x++){
-            const size_t index = (VGA_HEIGHT - 1) * VGA_WIDTH + x;
-            terminal_buffer[index] = vga_entry(date_info[i],terminal_color);
-            i++;
-        }
-    }
-    return 0;
-}
diff --git a/sysapp/pcat.c b/sysapp/pcat.c
deleted file mode 100644
index 7834ee4..0000000
--- a/sysapp/pcat.c
+++ /dev/null
@@ -1,126 +0,0 @@
-#include "../include/pcat.h"
-#include "../include/graphics.h"
-#include "../include/keyboard.h"
-#include "../include/date.h"
-#include "../include/shell.h"
-#include "../include/common.h"
-
-struct task_struct *father_pcat;
-struct pcat_process *this_process;
-uint32_t pid_pcat;
-extern KEY_STATUS *key_status;
-extern uint16_t *terminal_buffer;
-extern uint16_t cursor_x, cursor_y; // 光标位置
-extern int date_pid;
-
-static void pcat_movcur(){
-    cursor_x = this_process->buf_x;
-    cursor_y = this_process->buf_y;
-    move_cursor();
-}
-
-static void pcat_char(char c){
-    uint16_t *location;
-    uint8_t attribute = vga_entry_color(VGA_COLOR_DARK_GREY,VGA_COLOR_BLACK);
-    if(c == '\n'){
-        this_process->buf_y++;
-        this_process->buf_x = 0;
-        pcat_movcur();
-        return;
-    } else if (c == 0x09) {
-        location = terminal_buffer + (this_process->buf_y * 80 + this_process->buf_x);
-        *location = ' ' | attribute;
-        this_process->buf_x = (this_process->buf_x + 8) & ~(8 - 1);
-        pcat_movcur();
-        return;
-    } else if (c == '\b') {
-        if(this_process->buf_x){
-            this_process->buf_x--;
-            location = terminal_buffer + (this_process->buf_y * 80 + this_process->buf_x);
-            *location = ' ' | attribute;
-        } else{
-            if(this_process->buf_y){
-                this_process->buf_y--;
-            }
-        }
-        char* cc = (char*) this_process->buffer_screen;
-        int i = (this_process->chars)--;
-        cc[i] = '\0';
-        pcat_movcur();
-        return;
-    }
-
-    vga_putentryat(c, attribute,this_process->buf_x,this_process->buf_y);
-    this_process->buf_x++;
-    if (this_process->buf_x >= 80) {
-        this_process->buf_x = 0;
-        this_process->buf_y++;
-    }
-    pcat_movcur();
-    char* cc = (char*) this_process->buffer_screen;
-    int i = (this_process->chars)++;
-    cc[i] = c;
-}
-
-static void draw_string(const char *data){
-    size_t size = strlen(data);
-    for (size_t i = 0; i < size; i++)
-        pcat_char(data[i]);
-}
-
-static void draw_menu(){
-    for (size_t x = 0; x < VGA_WIDTH; x++) {
-        vga_putentryat(' ',vga_entry_color(VGA_COLOR_BLACK,VGA_COLOR_LIGHT_GREY),x,(VGA_HEIGHT - 1));
-    }
-}
-
-static int input_handler(){
-    int index = 0;
-    char c;
-    while (1) {
-        c = getc();
-
-        if(c == 27){
-            this_process->keys = 1;
-            return 0;
-        }
-
-        if (c == '\b') {
-            if (index > 0) {
-                index--;
-                draw_string("\b \b");
-            }
-        } else {
-            index++;
-            pcat_char(c);
-        }
-    }
-}
-
-static int check_exit(){
-    return this_process->keys;
-}
-
-void pcat_launch(struct File *file){
-    screen_clear(); task_kill(date_pid); vga_clear();
-    this_process = (struct pcat_process*) kmalloc(sizeof(struct pcat_process));
-    this_process->buf_x = this_process->buf_y = 0;
-    this_process->line = 1;
-    this_process->chars = 0;
-    this_process->buffer_screen = (uint16_t) kmalloc(VGA_WIDTH * (VGA_HEIGHT - 1));
-    this_process->file = file;
-    this_process->keys = 0;
-
-    int pid = kernel_thread(input_handler,NULL,"CPOS-pcat");
-
-    while (1){
-        if(check_exit()){
-            break;
-        }
-        draw_menu();
-        input_handler();
-    }
-    task_kill(pid);
-    screen_clear();
-    date_pid = kernel_thread(setup_date, NULL, "CPOS-Date");
-}
\ No newline at end of file