diff --git a/boot/graphics.asm b/boot/graphics.asm
index e69de29..63cb3fc 100644
--- a/boot/graphics.asm
+++ b/boot/graphics.asm
@@ -0,0 +1,36 @@
+global setjmp
+; int setjmp(jmp_buf env);
+setjmp:
+    mov ecx, [esp + 4]  ; ecx = env
+    mov edx, [esp + 0]  ; edx = ret addr
+    mov [ecx + 0], edx
+    mov [ecx + 4], ebx
+    mov [ecx + 8], esp
+    mov [ecx + 12], ebp
+    mov [ecx + 16], esi
+    mov [ecx + 20], edi
+    mov [ecx + 24], eax ; eax = trigblock()'s ret val
+
+    xor eax, eax    ; setjmp ret val = 0
+    ret
+
+global longjmp
+; void longjmp(jmp_buf env, int val)
+longjmp:
+
+    mov edx, [esp + 4]  ; edx = env
+    mov eax, [esp + 8]  ; eax = val
+    mov ecx, [edx + 0]  ; ecx = setjmp()'s ret val
+    mov ebx, [edx + 4]
+    mov esp, [edx + 8]
+    mov ebp, [edx + 12]
+    mov esi, [edx + 16]
+    mov edi, [edx + 20]
+
+    ; make sure longjmp's ret val not 0
+    test eax, eax   ; if eax == 0:
+    jnz .1          ;   eax += 1
+    inc eax         ; else: goto lable 1
+.1: ; let longjmp's ret addr as setjmp's ret addr
+    mov [esp + 0], ecx ; ret addr = ecx = setjmp's next code
+    ret
\ No newline at end of file
diff --git a/build.py b/build.py
index c714f87..d3cfb17 100644
--- a/build.py
+++ b/build.py
@@ -1,22 +1,16 @@
 import os
 
-gcc = '/i686_elf_tools/bin/i686-elf-gcc.exe -I include/ -std=gnu99 -ffreestanding -O2 -c -Wincompatible-pointer-types'
+gcc = '/i686_elf_tools/bin/i686-elf-gcc.exe -std=gnu99 -I include/ -std=gnu99 -ffreestanding -O2 -c -Wincompatible-pointer-types'
 asm = '/i686_elf_tools/bin/i686-elf-as.exe'
 nasm = "nasm -f elf32"
 ld = '/i686_elf_tools/bin/i686-elf-ld.exe'
-
 cd = os.getcwd()  # 获取当前执行目录 'D:\CrashPowerDOS-main\'
-
 out = "target"
-
-
 def clean():
-    print("Clean target flolder")
+    print("Clean target folder")
     for file in os.listdir(cd + "\\target"):  # 遍历指定文件夹下所有文件
         os.remove(cd + "\\target\\" + file)
     return 0
-
-
 def build_boot():  # 构建引导程序
     print("Building boot source code...")
     status = True
diff --git a/cpos.qcow2 b/cpos.qcow2
index 97c2d7e..ea72873 100644
Binary files a/cpos.qcow2 and b/cpos.qcow2 differ
diff --git a/driver/acpi.c b/driver/acpi.c
index 918891a..779fe56 100644
--- a/driver/acpi.c
+++ b/driver/acpi.c
@@ -4,6 +4,7 @@
 #include "../include/io.h"
 #include "../include/isr.h"
 #include "../include/timer.h"
+#include "../include/common.h"
 
 uint16_t SLP_TYPa;
 uint16_t SLP_TYPb;
@@ -146,6 +147,46 @@ void power_off() {
     }
 }
 
+static int AcpiPowerHandler(registers_t *irq) {
+    uint16_t status = io_in16((uint32_t) facp->PM1a_EVT_BLK);
+    // check if power button press
+    if (status & (1 << 8)) {
+        io_out16((uint32_t) facp->PM1a_EVT_BLK, status &= ~(1 << 8)); // clear bits
+        printf("Shutdown OS...");
+        shutdown_kernel();
+        return 0;
+    }
+    if (!facp->PM1b_EVT_BLK)
+        return -1;
+    // check if power button press
+    status = io_in16((uint32_t) facp->PM1b_EVT_BLK);
+    if (status & (1 << 8)) {
+        io_out16((uint32_t) facp->PM1b_EVT_BLK, status &= ~(1 << 8));
+        printf("Shutdown OS...");
+        shutdown_kernel();
+        return 0;
+    }
+    return -1;
+}
+
+static void AcpiPowerInit() {
+    uint32_t len = facp->PM1_EVT_LEN / 2;
+    uint32_t *PM1a_ENABLE_REG = facp->PM1a_EVT_BLK + len;
+    uint32_t *PM1b_ENABLE_REG = facp->PM1b_EVT_BLK + len;
+
+    if (!facp)
+        return;
+
+    io_out16((uint16_t)PM1a_ENABLE_REG, (uint8_t)(1 << 8));
+    if (PM1b_ENABLE_REG) {
+        io_out16((uint16_t)PM1b_ENABLE_REG, (uint8_t)(1 << 8));
+    }
+
+    printf("ACPI : SCI_INT %08x\n",(uint8_t)facp->SCI_INT);
+
+    register_interrupt_handler(facp->SCI_INT, AcpiPowerHandler);
+}
+
 int AcpiCheckHeader(void *ptr, uint8_t *sign) {
     uint8_t * bptr = ptr;
     uint32_t len = *(bptr + 4);
@@ -278,5 +319,5 @@ void acpi_install() {
     AcpiSysInit();
     acpi_enable_flag = !acpi_enable();
     // power init
-    // AcpiPowerInit();
+    AcpiPowerInit();
 }
\ No newline at end of file
diff --git a/driver/keyboard.c b/driver/keyboard.c
index ab1de30..2f68725 100644
--- a/driver/keyboard.c
+++ b/driver/keyboard.c
@@ -102,6 +102,8 @@ static void default_handle(uint32_t key,int release,char c){
 
         if(c == 0) return 0;
 
+        if(key == 0x81) queue_push(key_char_queue,-5);
+
         queue_push(key_char_queue,(char)c);
     } else {
         if(c == -1){
diff --git a/driver/vbe.c b/driver/vbe.c
index c70ff26..1ef11b6 100644
--- a/driver/vbe.c
+++ b/driver/vbe.c
@@ -1,4 +1,5 @@
 #include "../include/graphics.h"
+#include "../include/io.h"
 
 unsigned int vesa_fb_width, vesa_fb_height, vesa_fb_bpp, vesa_fb_pitch;
 uint8_t *vesa_fb_addr;
diff --git a/driver/vga.c b/driver/vga.c
index fa06897..c07ac30 100644
--- a/driver/vga.c
+++ b/driver/vga.c
@@ -9,9 +9,9 @@ uint16_t *terminal_buffer;
 
 int status = 0;
 
-static uint16_t cursor_x = 0, cursor_y = 0; // 光标位置
+uint16_t cursor_x = 0, cursor_y = 0; // 光标位置
 
-static inline uint8_t vga_entry_color(enum vga_color fg, enum vga_color bg) {
+uint8_t vga_entry_color(enum vga_color fg, enum vga_color bg) {
     return fg | bg << 4;
 }
 
diff --git a/include/common.h b/include/common.h
index 20a3334..bb26da9 100644
--- a/include/common.h
+++ b/include/common.h
@@ -1,7 +1,7 @@
 #ifndef CRASHPOWEROS_COMMON_H
 #define CRASHPOWEROS_COMMON_H
 
-#define OS_NAME "CrashPowerDOS"
+#define OS_NAME "CoolPotOS"
 #define OS_VERSION "v0.2.4"
 
 #define LONG_MAX 9223372036854775807L
diff --git a/include/cpp.h b/include/cpp.h
new file mode 100644
index 0000000..702803f
--- /dev/null
+++ b/include/cpp.h
@@ -0,0 +1,4 @@
+#ifndef CRASHPOWEROS_CPP_H
+#define CRASHPOWEROS_CPP_H
+
+#endif
diff --git a/include/date.h b/include/date.h
index 7c7e03a..a764a02 100644
--- a/include/date.h
+++ b/include/date.h
@@ -2,5 +2,6 @@
 #define CRASHPOWEROS_DATE_H
 
 int setup_date();
+void launch_date();
 
 #endif //CRASHPOWEROS_DATE_H
diff --git a/include/graphics.h b/include/graphics.h
index fba1575..2b08a46 100644
--- a/include/graphics.h
+++ b/include/graphics.h
@@ -69,8 +69,17 @@ struct color_rgba {
     uint8_t a;
 };
 
+typedef struct {
+    unsigned short di, si, bp, sp, bx, dx, cx, ax;
+    unsigned short gs, fs, es, ds, eflags;
+} regs16_t;
+
+
+
 typedef struct color_rgba color_rgba;
 
+uint8_t vga_entry_color(enum vga_color fg, enum vga_color bg);
+
 void vga_install(void);
 
 void vga_setcolor(uint8_t color);
diff --git a/include/io.h b/include/io.h
index 685f6c7..0cd3936 100644
--- a/include/io.h
+++ b/include/io.h
@@ -4,6 +4,27 @@
 
 #include <stdint.h>
 
+struct tty {
+    int using1;                              // 使用标志
+    void *vram;                              // 显存（也可以当做图层）
+    int x, y;                                // 目前的 x y 坐标
+    int xsize, ysize;                        // x 坐标大小 y 坐标大小
+    int Raw_y;                               // 换行次数
+    int cur_moving;                          // 光标需要移动吗
+    unsigned char color;                     // 颜色
+    void (*putchar)(struct tty *res, int c); // putchar函数
+    void (*MoveCursor)(struct tty *res, int x, int y);  // MoveCursor函数
+    void (*clear)(struct tty *res);                     // clear函数
+    void (*screen_ne)(struct tty *res);                 // screen_ne函数
+    void (*gotoxy)(struct tty *res, int x, int y);      // gotoxy函数
+    void (*print)(struct tty *res, const char *string); // print函数
+    void (*Draw_Box)(struct tty *res, int x, int y, int x1, int y1,
+                     unsigned char color); // Draw_Box函数
+    int (*fifo_status)(struct tty *res);
+    int (*fifo_get)(struct tty *res);
+    unsigned int reserved[4]; // 保留项
+};
+
 void gdt_flush(uint32_t gdtr);
 
 void io_hlt(void);
diff --git a/include/pcat.h b/include/pcat.h
index b813978..475e035 100644
--- a/include/pcat.h
+++ b/include/pcat.h
@@ -5,9 +5,14 @@
 #include "fat16.h"
 
 struct pcat_process{
-    uint8_t is_e;
+    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 task_struct *father,struct File *file);
+void pcat_launch(struct File *file);
 
 #endif
diff --git a/kernel/kernel.c b/kernel/kernel.c
index c416d36..61e38ac 100644
--- a/kernel/kernel.c
+++ b/kernel/kernel.c
@@ -70,7 +70,7 @@ void kernel_main(multiboot_t *multiboot) {
     clock_sleep(25);
 
     kernel_thread(setup_shell, NULL, "CPOS-Shell");
-    if (!status) kernel_thread(setup_date, NULL, "CPOS-Date");
+    launch_date();
 
     for (;;) {
         io_hlt();
diff --git a/sysapp/date.c b/sysapp/date.c
index 93b56fe..ee13ec6 100644
--- a/sysapp/date.c
+++ b/sysapp/date.c
@@ -6,6 +6,12 @@
 extern uint16_t *terminal_buffer;
 extern uint8_t terminal_color;
 
+int date_pid;
+
+void launch_date(){
+    date_pid = kernel_thread(setup_date, NULL, "CPOS-Date");
+}
+
 int setup_date(){
     char* date_info;
     int i;
diff --git a/sysapp/pcat.c b/sysapp/pcat.c
index f52905b..a04d92a 100644
--- a/sysapp/pcat.c
+++ b/sysapp/pcat.c
@@ -1,40 +1,126 @@
 #include "../include/pcat.h"
+#include "../include/graphics.h"
 #include "../include/keyboard.h"
-#include <stddef.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;
 
-void pcat_key_listener(uint32_t key,int release,char c){
-
+static void pcat_movcur(){
+    cursor_x = this_process->buf_x;
+    cursor_y = this_process->buf_y;
+    move_cursor();
 }
 
-void start_pcat_thread(){
-    this_process = (struct pcat_process*) kmalloc(sizeof(struct pcat_process));
-    struct key_listener *listener = (struct key_listener*) kmalloc(sizeof(struct key_listener));
-    listener->func = pcat_key_listener;
-    listener->func = 2;
-    add_listener(listener);
-    while (1){
-        if(key_status->is_ctrl){
-            if(this_process->is_e){
-                kfree(this_process);
-                start_task(father_pcat);
-                task_kill(get_current());
+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));
     }
 }
 
-void pcat_launch(struct task_struct *father,struct File *file){
-    father_pcat = father;
-    pid_pcat = kernel_thread(start_pcat_thread,NULL,"CPOS-PCAT");
-    wait_task(father);
-    while (1){
-        if(father->state != TASK_SLEEPING) break;
+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){
+    vga_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);
+    vga_clear();
+    date_pid = kernel_thread(setup_date, NULL, "CPOS-Date");
 }
\ No newline at end of file
diff --git a/sysapp/shell.c b/sysapp/shell.c
index 1d184f1..bc9bd89 100644
--- a/sysapp/shell.c
+++ b/sysapp/shell.c
@@ -224,7 +224,7 @@ void cmd_pcat(int argc,char **argv){
         file = open_file(argv[1]);
     } else file = create_file(argv[1]);
 
-    pcat_launch(get_current(),file);
+    pcat_launch(file);
 }
 
 void setup_shell(){
@@ -275,7 +275,7 @@ void setup_shell(){
         else if (!strcmp("pcat", argv[0]))
             cmd_pcat(argc,argv);
         else if (!strcmp("help", argv[0]) || !strcmp("?", argv[0]) || !strcmp("h", argv[0])) {
-            vga_writestring("-=[\037CrashPowerShell Helper\036]=-\n");
+            vga_writestring("-=[\037CoolPotShell Helper\036]=-\n");
             vga_writestring("help ? h              \032Print shell help info.\036\n");
             vga_writestring("version               \032Print os version.\036\n");
             vga_writestring("echo       <msg>      \032Print message.\036\n");
diff --git a/util/base.cpp b/util/base.cpp
new file mode 100644
index 0000000..3e5bbfa
--- /dev/null
+++ b/util/base.cpp
@@ -0,0 +1,55 @@
+#include "../include/cpp.h"
+#include <stdint.h>
+#include <stddef.h>
+
+extern "C" uint32_t kmalloc(size_t);
+extern "C" void kfree(void*);
+
+extern "C" void __cxa_pure_virtual()
+{
+    // Do nothing or print an error message.
+}
+
+void *operator
+new(size_t
+size)
+{
+return
+(void*)  kmalloc(size);
+}
+
+void *operator
+new[](
+size_t size
+)
+{
+return (void*)kmalloc(size);
+}
+
+void operator
+
+delete(void *p, unsigned int size) {
+    kfree(p);
+}
+
+void operator
+delete[](
+void *p,
+unsigned int size
+)
+{
+kfree(p);
+}
+void operator
+
+delete(void *p) {
+    kfree(p);
+}
+
+void operator
+delete[](
+void *p
+)
+{
+kfree(p);
+}