大更新

apps/Makefile

@@ -0,0 +1,10 @@
+default: Makefile
+	make -r -C libs
+	make -r -C init
+	make -r -C base_service
+
+clean:
+	rm ../isodir/apps/*
+	make -r -C libs clean
+	make -r -C init clean
+	make -r -C base_service clean

apps/base_service/Makefile

@@ -0,0 +1,14 @@
+OBJS_PACK = out/service.obj
+include ../def.mk
+
+default: $(OBJS_PACK)
+	$(LINK) $(OBJS_PACK) $(BASIC_LIB_C) -o ../../isodir/apps/service.bin
+out/%.obj : %.c Makefile
+	$(C) -c $*.c -o out/$*.obj
+out/%.obj : %.cpp Makefile
+	$(CPP) -c $*.cpp -o out/$*.obj
+out/%.obj : %.asm Makefile
+	nasm -f elf $*.asm -o out/$*.obj
+
+clean:
+	rm out/*

apps/base_service/service.c

@@ -0,0 +1,7 @@
+#include "../include/stdio.h"
+
+int main(){
+    while (1);
+    put_char('A');
+    return 0;
+}

apps/def.mk

@@ -0,0 +1,16 @@
+CFLAGS = -m32 -I$(INCLUDE_PATH) -nostdinc -nolibc -nostdlib -ffreestanding -fno-stack-protector -Qn -fno-pic -fno-pie -fno-asynchronous-unwind-tables -fomit-frame-pointer -finput-charset=UTF-8 -fexec-charset=GB2312 -march=pentium -Qn -O0 -w
+CPPFLAGS = -m32 -I$(INCLUDE_PATH) -nostdinc -nolibc -nostdlib -ffreestanding -fno-exceptions -fno-stack-protector -Qn -fno-pic -fno-pie -fno-asynchronous-unwind-tables -fomit-frame-pointer -finput-charset=UTF-8 -fexec-charset=GB2312 -Qn -O3 -march=pentium -fno-rtti -w
+
+CC = gcc
+
+C = $(CC) $(CFLAGS)
+CPP = $(CC) $(CPPFLAGS)
+INCLUDE_PATH := ../include
+NASM = nasm
+LIBS_PATH := ../libo
+
+LD = ld
+LD_FLAGS = -Ttext 0xb0000010 -m elf_i386 -static -e main
+LINK = $(LD) $(LD_FLAGS)
+
+BASIC_LIB_C = $(LIBS_PATH)/libp.a

apps/include/stdio.h

@@ -0,0 +1,6 @@
+#ifndef CRASHPOWEROS_STDIO_H
+#define CRASHPOWEROS_STDIO_H
+
+void put_char(char c);
+
+#endif

apps/init/Makefile

@@ -0,0 +1,14 @@
+OBJS_PACK = out/init.obj
+include ../def.mk
+
+default: $(OBJS_PACK)
+	$(LINK) $(OBJS_PACK) $(BASIC_LIB_C) -o ../../isodir/apps/init.bin
+out/%.obj : %.c Makefile
+	$(C) -c $*.c -o out/$*.obj
+out/%.obj : %.cpp Makefile
+	$(CPP) -c $*.cpp -o out/$*.obj
+out/%.obj : %.asm Makefile
+	nasm -f elf $*.asm -o out/$*.obj
+
+clean:
+	rm out/*

apps/init/init.c

@@ -0,0 +1,7 @@
+#include "../include/stdio.h"
+
+int main(){
+    while (1);
+    put_char('A');
+    return 0;
+}

apps/libs/Makefile

@@ -0,0 +1,14 @@
+OBJS_PACK = out/syscall.obj
+
+
+default : $(OBJS_PACK)
+	ar rv ../libo/libp.a $(OBJS_PACK)
+out/%.obj : %.c Makefile
+	gcc -m32 -I../include -nostdinc -nostdlib -fno-builtin -ffreestanding -fno-stack-protector -Qn -fno-pic -fno-pie -fno-asynchronous-unwind-tables -fomit-frame-pointer -march=pentium -O0 -w -c $*.c -o out/$*.obj
+out/%.obj : %.cpp Makefile
+	gcc -m32 -I../include -nostdinc -nostdlib -fno-builtin -ffreestanding -fno-stack-protector -Qn -fno-pic -fno-pie -fno-asynchronous-unwind-tables -fomit-frame-pointer -march=pentium -O0 -w -c $*.cpp -o out/$*.obj
+out/%.obj : %.asm Makefile
+	nasm -f elf $*.asm -o out/$*.obj
+clean:
+	rm out/*
+	rm ../libo/*

apps/libs/syscall.asm

@@ -0,0 +1,11 @@
+global put_char
+
+put_char:
+    push	edx
+    push	eax
+    mov edx,[ss:esp+12]
+    mov eax,0x01
+    int 80h
+    pop	eax
+    pop	edx
+    ret

bochsrc.txt

@@ -0,0 +1,12 @@
+megs: 2048
+vga: extension=vbe, update_freq=15
+
+ata1-master: type=cdrom, path=cpos.iso, status=inserted
+#ata0-master: type=disk, path=disk.img, mode=flat, cylinders=2, heads=16, spt=63
+ata2: enabled=false
+ata3: enabled=false
+boot: cdrom
+
+display_library: win32, options="gui_debug"
+
+#vgaromimage: file=/usr/share/vgabios/vgabios.bin

build.py

@@ -89,7 +89,7 @@ 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_ + src + 'util'):
-        cmd = cd + gcc + "-O2 " + src + "util" + dir_ + file + " -o " + "target" + dir_ + file.split(".")[0] + ".o"
+        cmd = cd + gcc + "-O0 " + src + "util" + dir_ + file + " -o " + "target" + dir_ + file.split(".")[0] + ".o"
         e = os.system(cmd)
         if e != 0:
             return -1
@@ -132,7 +132,7 @@ def linker():  # 交叉编译链接
     for file in os.listdir(cd + dir_ + 'target'):
         source_file = source_file + " target" + dir_ + file
     return os.system(
-        cd + "/i686_elf_tools/bin/i686-elf-g++.exe -T linker.ld -o isodir" + dir_ + "sys" + dir_ + "kernel.elf -ffreestanding -O2 -nostdlib " + source_file + " -lgcc")
+        cd + "/i686_elf_tools/bin/i686-elf-g++.exe -T linker.ld -o isodir" + dir_ + "sys" + dir_ + "kernel.elf -ffreestanding -nostdlib " + source_file + " -lgcc")
 
 
 def launch():

src/boot/graphics.asm

@@ -33,4 +33,5 @@ longjmp:
     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
+    ret
+

src/driver/acpi.c

@@ -56,10 +56,8 @@ int acpi_enable() {
         }
         // check enable status
         if (i < 300) {
-            printf("[acpi]: Enable ACPI\n");
             return 0;
         } else {
-            printf("Counld't enable ACPI\n");
             return -1;
         }
     }
@@ -89,10 +87,8 @@ int acpi_disable() {
         }
 
         if (i < 300) {
-            printf("ACPI Disable!\n");
             return 0;
         } else {
-            printf("Could't disable ACPI\n");
             return -1;
         }
     }
@@ -140,7 +136,6 @@ void power_off() {
     if (!SCI_EN)
         return;
     while (1) {
-        printf("[acpi] send power off command!\n");
         io_out16((uint32_t) PM1a_CNT, SLP_TYPa | SLP_EN);
         if (!PM1b_CNT) {
             io_out16((uint32_t) PM1b_CNT, SLP_TYPb | SLP_EN);
@@ -180,17 +175,12 @@ static void AcpiPowerInit() {
     if (PM1b_ENABLE_REG == len)
         PM1b_ENABLE_REG = 0;
 
-    printf("[acpi]: Setting Power event listener...\n");
-
     io_out16(PM1a_ENABLE_REG, (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);
 }
 
@@ -217,7 +207,6 @@ uint8_t *AcpiCheckRSDPtr(void *ptr) {
 
     // check signature
     if (!memcmp(sign, bptr, 8)) {
-        printf("[acpi] rsdp found at %0x\n", bptr);
         rsdp_address = bptr;
         for (i = 0; i < sizeof(acpi_rsdptr_t); i++) {
             check += *bptr;
@@ -255,7 +244,7 @@ static int AcpiSysInit() {
     rsdt = (acpi_rsdt_t *) AcpiGetRSDPtr();
     if (!rsdt || AcpiCheckHeader(rsdt, "RSDT") < 0) {
         printf("No ACPI\n");
-        return -1;
+        return false;
     }
 
     entrys = rsdt->length - HEADER_SIZE / 4;
@@ -315,7 +304,7 @@ static int AcpiSysInit() {
             } else {
                 printf("[acpi] no found DSDT table\n");
             }
-            return 0;
+            return true;
         }
         ++p;
     }
@@ -323,9 +312,8 @@ static int AcpiSysInit() {
 }
 
 void acpi_install() {
-    AcpiSysInit();
+    klogf(AcpiSysInit(),"Load acpi driver.\n");
     acpi_enable_flag = !acpi_enable();
-    // power init
     hpet_initialize();
     AcpiPowerInit();
 }
@@ -383,14 +371,10 @@ void hpet_initialize() {
         printf("can not found acpi hpet table\n");
     }
 
-    printf("[acpi-hpet]: OEM: %s | Version: %d\n",hpet->oem,hpet->oemVersion);
-
     hpetInfo = (HpetInfo *) hpet->hpetAddress.address;
 
     uint32_t counterClockPeriod = hpetInfo->generalCapabilities >> 32;
     hpetPeriod = counterClockPeriod / 1000000;
 
     hpetInfo->generalConfiguration |= 1;  //  启用hpet
-
-    printf("[acpi]: hpet successfully enabled.\n");
 }

src/driver/ide.c

@@ -68,7 +68,6 @@ void ide_initialize(unsigned int BAR0, unsigned int BAR1, unsigned int BAR2,
     // 2- Disable IRQs:
     ide_write(ATA_PRIMARY, ATA_REG_CONTROL, 2);
     ide_write(ATA_SECONDARY, ATA_REG_CONTROL, 2);
-    logk("w1\n");
     // 3- Detect ATA-ATAPI Devices:
     for (int i = 0; i < 2; i++)
         for (j = 0; j < 2; j++) {
@@ -78,20 +77,15 @@ void ide_initialize(unsigned int BAR0, unsigned int BAR1, unsigned int BAR2,
             // (I) Select Drive:
             ide_write(i, ATA_REG_HDDEVSEL, 0xA0 | (j << 4)); // Select Drive.
             sleep(1); // Wait 1ms for drive select to work.
-            logk("I\n");
             // (II) Send ATA Identify Command:
             ide_write(i, ATA_REG_COMMAND, ATA_CMD_IDENTIFY);
             sleep(1); // This function should be implemented in your OS. which waits
             // for 1 ms. it is based on System Timer Device Driver.
-            logk("II\n");
             // (III) Polling:
             if (ide_read(i, ATA_REG_STATUS) == 0)
                 continue; // If Status = 0, No Device.
-            logk("III\n");
             while (1) {
-                logk("read ide....\n");
                 status = ide_read(i, ATA_REG_STATUS);
-                logk("read ok\n");
                 if ((status & ATA_SR_ERR)) {
                     err = 1;
                     break;
@@ -101,7 +95,6 @@ void ide_initialize(unsigned int BAR0, unsigned int BAR1, unsigned int BAR2,
             }
 
             // (IV) Probe for ATAPI Devices:
-            logk("IV\n");
             if (err != 0) {
                 unsigned char cl = ide_read(i, ATA_REG_LBA1);
                 unsigned char ch = ide_read(i, ATA_REG_LBA2);
@@ -118,11 +111,9 @@ void ide_initialize(unsigned int BAR0, unsigned int BAR1, unsigned int BAR2,
             }
 
             // (V) Read Identification Space of the Device:
-            logk("V\n");
             ide_read_buffer(i, ATA_REG_DATA, (unsigned int) ide_buf, 128);
 
             // (VI) Read Device Parameters:
-            logk("VI\n");
             ide_devices[count].Reserved = 1;
             ide_devices[count].Type = type;
             ide_devices[count].Channel = i;
@@ -135,7 +126,6 @@ void ide_initialize(unsigned int BAR0, unsigned int BAR1, unsigned int BAR2,
                     *((unsigned int *) (ide_buf + ATA_IDENT_COMMANDSETS));
 
             // (VII) Get Size:
-            logk("VII\n");
             if (ide_devices[count].CommandSets & (1 << 26))
                 // Device uses 48-Bit Addressing:
                 ide_devices[count].Size =
@@ -147,7 +137,6 @@ void ide_initialize(unsigned int BAR0, unsigned int BAR1, unsigned int BAR2,
 
             // (VIII) String indicates model of device (like Western Digital HDD and
             // SONY DVD-RW...):
-            logk("VIII\n");
             for (k = 0; k < 40; k += 2) {
                 ide_devices[count].Model[k] = ide_buf[ATA_IDENT_MODEL + k + 1];
                 ide_devices[count].Model[k + 1] = ide_buf[ATA_IDENT_MODEL + k];
@@ -161,10 +150,12 @@ void ide_initialize(unsigned int BAR0, unsigned int BAR1, unsigned int BAR2,
     vdisk vd;
     for (int i = 0; i < 4; i++)
         if (ide_devices[i].Reserved == 1) {
+            /*
             logkf(" %d Found %s Drive %dMB - %s\n", i,
-                 (const char *[]) {"ATA", "ATAPI"}[ide_devices[i].Type], /* Type */
+                 (const char *[]) {"ATA", "ATAPI"}[ide_devices[i].Type],
-                    ide_devices[i].Size / 1024 / 2,                        /* Size */
+                    ide_devices[i].Size / 1024 / 2,
                     ide_devices[i].Model);
+                    */
             strcpy(vd.DriveName, ide_devices[i].Model);
             if(ide_devices[i].Type == IDE_ATAPI) {
                 vd.flag = 2;
@@ -175,7 +166,7 @@ void ide_initialize(unsigned int BAR0, unsigned int BAR1, unsigned int BAR2,
             vd.Read = Read;
             vd.Write = Write;
             vd.size = ide_devices[i].Size;
-            printf("[Disk-(%c)]: Size: %dMB | %s | Name: %s\n", register_vdisk(vd), vd.size,(const char *[]) {"ATA", "ATAPI"}[ide_devices[i].Type], vd.DriveName);
+            klogf(true,"Disk-(%c) Size: %dMB | %s | Name: %s\n", register_vdisk(vd), vd.size,(const char *[]) {"ATA", "ATAPI"}[ide_devices[i].Type], vd.DriveName);
         }
 }
 
@@ -242,21 +233,17 @@ unsigned char ide_polling(unsigned char channel, unsigned int advanced_check) {
 
     // (II) Wait for BSY to be cleared:
     // -------------------------------------------------
-    logk("II\n");
     int a = ide_read(channel, ATA_REG_STATUS);
     while (a & ATA_SR_BSY) {
-        logkf("a=%d\n", a & ATA_SR_BSY); // Wait for BSY to be zero.
         a = ide_read(channel, ATA_REG_STATUS);
         sleep(1);
     }
-    logk("II OK\n");
     if (advanced_check) {
         unsigned char state =
                 ide_read(channel, ATA_REG_STATUS); // Read Status Register.
 
         // (III) Check For Errors:
         // -------------------------------------------------
-        logk("III\n");
         if (state & ATA_SR_ERR)
             return 2; // Error.
 
@@ -356,7 +343,6 @@ unsigned char ide_ata_access(unsigned char direction, unsigned char drive,
     ide_write(channel, ATA_REG_CONTROL,
               channels[channel].nIEN = (ide_irq_invoked = 0x0) + 0x02);
     // (I) Select one from LBA28, LBA48 or CHS;
-    logkf("I %02x\n", channels[channel].nIEN);
     if (lba >= 0x10000000) { // Sure Drive should support LBA in this case, or
         // you are giving a wrong LBA.
         // LBA48:
@@ -393,14 +379,11 @@ unsigned char ide_ata_access(unsigned char direction, unsigned char drive,
                (63); // Head number is written to HDDEVSEL lower 4-bits.
     }
     // (II) See if drive supports DMA or not;
-    logk("II\n");
     dma = 0; // We don't support DMA
     // (III) Wait if the drive is busy;
-    logk("III\n");
     while (ide_read(channel, ATA_REG_STATUS) & ATA_SR_BSY) {
     } // Wait if busy.
     // (IV) Select Drive from the controller;
-    logk("IV\n");
     if (lba_mode == 0)
         ide_write(channel, ATA_REG_HDDEVSEL,
                   0xA0 | (slavebit << 4) | head); // Drive & CHS.
@@ -443,7 +426,6 @@ unsigned char ide_ata_access(unsigned char direction, unsigned char drive,
     if (lba_mode == 2 && dma == 1 && direction == 1)
         cmd = ATA_CMD_WRITE_DMA_EXT;
     ide_write(channel, ATA_REG_COMMAND, cmd); // Send the Command.
-    logk("IV1\n");
     if (dma)
         if (direction == 0);
             // DMA Read.
@@ -457,7 +439,6 @@ unsigned char ide_ata_access(unsigned char direction, unsigned char drive,
             if (err = ide_polling(channel, 1))
                 return err; // Polling, set error and exit if there is.
 
-            logkf("words=%d bus=%d\n", words, bus);
             for (int h = 0; h < words; h++) {
               unsigned short a = io_in16(bus);
                word_[i * words + h] = a;
@@ -489,21 +470,17 @@ unsigned char ide_ata_access(unsigned char direction, unsigned char drive,
 }
 
 void ide_wait_irq() {
-    logk("WAITING\n");
     while (!ide_irq_invoked);
     ide_irq_invoked = 0;
-    logk("IDE_WAIT_IRQ!\n");
 }
 
 void ide_irq() {
-    logk("ide irq.\n");
     ide_irq_invoked = 1;
 }
 
 unsigned char ide_atapi_read(unsigned char drive, unsigned int lba,
                              unsigned char numsects, unsigned short selector,
                              unsigned int edi) {
-    logk("cdrom read.\n");
     unsigned int channel = ide_devices[drive].Channel;
     unsigned int slavebit = ide_devices[drive].Drive;
     unsigned int bus = channels[channel].base;
@@ -516,7 +493,6 @@ unsigned char ide_atapi_read(unsigned char drive, unsigned int lba,
               channels[channel].nIEN = ide_irq_invoked = 0x0);
     // (I): Setup SCSI Packet:
     // ------------------------------------------------------------------
-    logk("CDROM I\n");
     atapi_packet[0] = ATAPI_CMD_READ;
     atapi_packet[1] = 0x0;
     atapi_packet[2] = (lba >> 24) & 0xFF;
@@ -531,12 +507,9 @@ unsigned char ide_atapi_read(unsigned char drive, unsigned int lba,
     atapi_packet[11] = 0x0; // (II): Select the drive:
     // ------------------------------------------------------------------
     ide_write(channel, ATA_REG_HDDEVSEL, slavebit << 4);
-    logk("CDROM II\n");
     // (III): Delay 400 nanoseconds for select to complete:
     for (int i = 0; i < 4000; i++);
-    logk("CDROM III\n");
     // ------------------------------------------------------------------
-    logk("CDROM IV\n");
     for (int i = 0; i < 4; i++)
         ide_read(channel,
                  ATA_REG_ALTSTATUS); // Reading the Alternate Status port wastes
@@ -547,7 +520,6 @@ unsigned char ide_atapi_read(unsigned char drive, unsigned int lba,
               0); // PIO mode.
     // (V): Tell the Controller the size of buffer:
     // ------------------------------------------------------------------
-    logk("CDROM V\n");
     ide_write(channel, ATA_REG_LBA1,
               (words * 2) & 0xFF); // Lower Byte of Sector Size.
     ide_write(channel, ATA_REG_LBA2,
@@ -563,20 +535,17 @@ unsigned char ide_atapi_read(unsigned char drive, unsigned int lba,
 
     // (VIII): Sending the packet data:
     // ------------------------------------------------------------------
-    logk("CDROM VIII\n");
     uint16_t *_atapi_packet = atapi_packet;
     for (int i = 0; i < 6; i++) {
         io_out16(bus, _atapi_packet[i]);
     }
     // (IX): Receiving Data:
     // ------------------------------------------------------------------
-    logk("CDROM IX\n");
     uint16_t *_word = edi;
     for (i = 0; i < numsects; i++) {
         ide_wait_irq(); // Wait for an IRQ.
         if (err = ide_polling(channel, 1))
             return err; // Polling and return if error.
-        logkf("CDROM words = %d\n", words);
 
         insl(bus, _word + i * words, words / 2);
     }
@@ -609,7 +578,6 @@ void ide_read_sectors(unsigned char drive, unsigned char numsects,
     else {
         unsigned char err;
         if (ide_devices[drive].Type == IDE_ATA) {
-            logk("Will Read.\n");
             err = ide_ata_access(ATA_READ, drive, lba, numsects, es, edi);
 
         } else if (ide_devices[drive].Type == IDE_ATAPI)

src/driver/keyboard.c

@@ -119,18 +119,25 @@ static void default_handle(uint32_t key,int release,char c){
 
 void init_keyboard(){
     key_status = (KEY_STATUS*) alloc(sizeof(KEY_STATUS));
+    if(key_status == NULL) goto error;
     key_status->is_shift = 0;
 
     key_char_queue = create_queue();
     head_listener = (struct key_listener*) kmalloc(sizeof(struct key_listener));
+    if(head_listener == NULL) goto error;
     head_listener->func = default_handle;
     head_listener->lid = 0;
     head_listener->next = NULL;
 
     register_interrupt_handler(0x21,handle_keyboard_input);
+
+    klogf(true,"Load PS/2 Keyboard device.\n");
+    return;
+    error:
+    klogf(false,"Load PS/2 Keyboard device.\n");
 }
 
-int handle_keyboard_input(){
+int handle_keyboard_input(registers_t *reg){
     unsigned char status = read_port(KEYBOARD_STATUS_PORT);
     uint32_t key = read_port(KEYBOARD_DATA_PORT);
     int release = key & 0xb10000000;

src/driver/mouse.c

@@ -0,0 +1,91 @@
+#include "../include/mouse.h"
+#include "../include/io.h"
+#include "../include/isr.h"
+#include "../include/printf.h"
+
+uint8_t mouse_cycle = 0;     //unsigned char
+int8_t mouse_byte[3];    //signed char
+int8_t mouse_x = 0;         //signed char
+int8_t mouse_y = 0;         //signed char
+
+static void wait_KBC_sendready(void) {
+    for (;;) {
+        if ((io_in8(0x0064) & 0x02) == 0) {
+            break;
+        }
+    }
+    return;
+}
+
+static void mouse_handler(registers_t *a_r) {
+    switch (mouse_cycle) {
+        case 0:
+            mouse_byte[0] = io_in8(0x60);
+            mouse_cycle++;
+            break;
+        case 1:
+            mouse_byte[1] = io_in8(0x60);
+            mouse_cycle++;
+            break;
+        case 2:
+            mouse_byte[2] = io_in8(0x60);
+            mouse_x = mouse_byte[1];
+            mouse_y = mouse_byte[2];
+            mouse_cycle = 0;
+            break;
+    }
+
+    printf("Mouse Mov: %d %d\n",mouse_x,mouse_y);
+}
+
+void mouse_wait(uint8_t a_type) {
+    unsigned int _time_out = 100000;
+    if (a_type == 0) {
+        while (_time_out--) {
+            if ((io_in8(0x64) & 1) == 1) {
+                return;
+            }
+        }
+        return;
+    } else {
+        while (_time_out--) {
+            if ((io_in8(0x64) & 2) == 0) {
+                return;
+            }
+        }
+        return;
+    }
+}
+
+void mouse_write(uint8_t a_write) {
+    mouse_wait(1);
+    io_out8(0x64, 0xD4);
+    mouse_wait(1);
+    io_out8(0x60, a_write);
+}
+
+uint8_t mouse_read() {
+    mouse_wait(0);
+    return io_in8(0x60);
+}
+
+void mouse_reset() {
+    mouse_write(0xff);
+}
+
+void mouse_install() {
+    wait_KBC_sendready();
+    io_out8(0x0064, 0xd4);
+    wait_KBC_sendready();
+    io_out8(0x0060, 0xf4);
+    mouse_write(0xf3);
+    mouse_write(200);
+    mouse_write(0xf3);
+    mouse_write(100);
+    mouse_write(0xf3);
+    mouse_write(80);
+    mouse_write(0xf2);
+    logkf("mouseId=%d\n", mouse_read());
+
+    register_interrupt_handler(12,mouse_handler);
+}

src/driver/pci.c

@@ -104,7 +104,6 @@ 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);
@@ -155,6 +154,5 @@ void init_pci(){
             }
         }
     }
-
+    klogf(true,"PCI device loaded: %d\n",PCI_NUM);
-    printf("[pci]: Device Loaded: %d\n",PCI_NUM);
 }

src/driver/vbe.c

@@ -28,6 +28,16 @@ static void copy_char(uint32_t *vram, int off_x, int off_y, int x, int y, int x1
     }
 }
 
+void drawPixel(uint32_t x, uint32_t y, uint32_t color) {
+    if (x >= width
+        || y >= height) {
+        return;
+    }
+    color = (color & 0xff) << 16 | (color & 0xff00) | (color & 0xff0000) >> 16;
+    uint32_t  *p = (uint32_t *)screen + y * width + x;
+    *p = color;
+}
+
 void vbe_scroll() {
     if (cx > c_width) {
         cx = 0;
@@ -198,7 +208,8 @@ void initVBE(multiboot_t *info) {
     width = info->framebuffer_width;
     height = info->framebuffer_height;
     color = 0xc6c6c6;
-    back_color = 0x1c1c1c;
+    //back_color = 0x1c1c1c;
+    back_color = 0x000000;
     c_width = width / 9;
     c_height = height / 16;
 

src/driver/vdisk.c

@@ -16,6 +16,7 @@ int init_vdisk() {
     for (int i = 0; i < 26; i++) {
         vdisk_ctl[i].flag = 0; // 设置为未使用
     }
+    klogf(true,"VDisk interface initialize.\n");
 }
 
 int register_vdisk(vdisk vd) {

src/fs/fat.c

@@ -85,6 +85,7 @@ int get_directory_max(struct FAT_FILEINFO *directory, vfs_t *vfs) {
         }
     }
 }
+
 void file_loadfile(int clustno, int size, char *buf, int *fat, vfs_t *vfs) {
     if (!size) {
         return;
@@ -168,15 +169,7 @@ void file_savefile(int clustno, int size, char *buf, int *fat,
     }
     void *img = kmalloc(alloc_size);
     memclean((char *)img, alloc_size);
-    memcpy(img, buf, size); // 把要写入的数据复制到新请求的内存地址
+    memcpy(img, buf, size);
-    // for (int i = 0; i != (alloc_size / get_dm(vfs).ClustnoBytes); i++) {
-    //   uint32_t sec = (get_dm(vfs).FileDataAddress +
-    //                   (clustno - 2) * get_dm(vfs).ClustnoBytes) /
-    //                  get_dm(vfs).SectorBytes;
-    //   Disk_Write(sec, get_dm(vfs).ClustnoBytes / get_dm(vfs).SectorBytes,
-    //              img + i * get_dm(vfs).ClustnoBytes, vfs->disk_number);
-    //   clustno = fat[clustno];
-    // }
     int flag = 0, a, num = 0, sec_start = 0;
     for (int i = 0; i != (alloc_size / get_dm(vfs).ClustnoBytes); i++) {
         uint32_t sec = (get_dm(vfs).FileDataAddress +

src/fs/vfs.c

@@ -10,6 +10,7 @@
 vfs_t vfsstl[26];
 vfs_t vfsMount_Stl[26];
 vfs_t *vfs_now;
+bool hasFS;
 
 static vfs_t *drive2fs(uint8_t drive) {
     for (int i = 0; i < 26; i++) {
@@ -71,7 +72,6 @@ static void insert_str1(char *str, char *insert_str1, int pos) {
 }
 
 bool vfs_mount_disk(uint8_t disk_number, uint8_t drive) {
-    printf("Mount DISK ---- %02x\n", disk_number);
     for (int i = 0; i < 26; i++) {
         if (vfsMount_Stl[i].flag == 1 &&
             (vfsMount_Stl[i].drive == drive ||
@@ -95,6 +95,9 @@ bool vfs_mount_disk(uint8_t disk_number, uint8_t drive) {
     seat->drive = drive;
     seat->disk_number = disk_number;
     seat->flag = 1;
+
+    printf("Disk %c mount success!\n",disk_number);
+
     return true;
 }
 
@@ -400,10 +403,10 @@ void init_vfs() {
         // PDEBUG("Set vfsstl[%d] & vfsMount_Stl[%d] OK.", i, i);
     }
     vfs_now = NULL;
+    klogf(true,"Virtual File System initialize.\n");
 }
 
 bool vfs_register_fs(vfs_t vfs) {
-    printf("Register file system: %s\n", vfs.FSName);
     vfs_t *seat;
     seat = findSeat(vfsstl);
     if (!seat) {
@@ -411,5 +414,6 @@ bool vfs_register_fs(vfs_t vfs) {
         return false;
     }
     *seat = vfs;
+    klogf(true,"Register file system: %s\n",vfs.FSName);
     return true;
 }

src/include/bmp.h

@@ -0,0 +1,27 @@
+#ifndef CRASHPOWEROS_BMP_H
+#define CRASHPOWEROS_BMP_H
+
+#include "common.h"
+
+typedef struct {
+    uint16_t magic;
+    uint32_t fileSize;
+    uint32_t reserved;
+    uint32_t bmpDataOffset;
+    //  bmp信息头开始
+    uint32_t bmpInfoSize;
+    uint32_t frameWidth;
+    uint32_t frameHeight;
+    uint16_t reservedValue; //  必须为0x0001
+    uint16_t bitsPerPixel;
+    uint32_t compressionMode;
+    uint32_t frameSize;
+    uint32_t horizontalResolution;
+    uint32_t verticalResolution;
+    uint32_t usedColorCount;
+    uint32_t importantColorCount;
+} __attribute__((packed)) Bmp;
+
+void display(Bmp *bmp,uint32_t x, uint32_t y, bool isTransparent);
+
+#endif

src/include/common.h

@@ -2,7 +2,11 @@
 #define CRASHPOWEROS_COMMON_H
 
 #define OS_NAME "CoolPotOS"
-#define OS_VERSION "v0.2.5"
+#define OS_VERSION "v0.2.9"
+
+// b 0x211972
+// b 0x20d0a6
+
 
 #define LONG_MAX 9223372036854775807L
 #define LONG_MIN -9223372036854775808L

src/include/description_table.h

@@ -5,6 +5,8 @@
 
 #define GDT_LENGTH 6
 
+#define SA_RPL3 3
+
 typedef struct gdt_entry_t {
     uint16_t limit_low;           // 段基址 | 低16位置
     uint16_t base_low;            // 段基址 | 高16位置
@@ -121,12 +123,38 @@ typedef struct tss_table {
     uint16_t iomap_base;
 } tss_entry;
 
+typedef struct intr_frame_t {
+    unsigned edi;
+    unsigned esi;
+    unsigned ebp;
+    // 虽然 pushad 把 esp 也压入，但 esp 是不断变化的，所以会被 popad 忽略
+    unsigned esp_dummy;
+
+    unsigned ebx;
+    unsigned edx;
+    unsigned ecx;
+    unsigned eax;
+
+    unsigned gs;
+    unsigned fs;
+    unsigned es;
+    unsigned ds;
+
+    unsigned eip;
+    unsigned cs;
+    unsigned eflags;
+    unsigned esp;
+    unsigned ss;
+} intr_frame_t;
+
 void write_tss(int32_t num, uint16_t ss0, uint32_t esp0);
 void set_kernel_stack(uintptr_t stack);
+void set_tss_ss0(uintptr_t ss);
 
 void gdt_install();
 void idt_install();
 
+void idt_use_reg(uint8_t num,uint32_t base);
 void idt_set_gate(uint8_t num, uint32_t base, uint16_t sel, uint8_t flags);
 
 #endif //CRASHPOWEROS_DESCRIPTION_TABLE_H

src/include/desktop.h

@@ -0,0 +1,6 @@
+#ifndef CRASHPOWEROS_DESKTOP_H
+#define CRASHPOWEROS_DESKTOP_H
+
+void menu_sel();
+
+#endif

src/include/graphics.h

@@ -105,6 +105,6 @@ int cur_task();
 void vbe_draw_char(char c,int32_t x,int32_t y);
 void draw_rect(int x0, int y0, int x1, int y1, int c);
 void initVBE(multiboot_t *multiboot);
-
+void drawPixel(uint32_t x, uint32_t y, uint32_t color);
 
 #endif

src/include/heap.h

@@ -0,0 +1,10 @@
+#ifndef CRASHPOWEROS_HEAP_H
+#define CRASHPOWEROS_HEAP_H
+
+#include "task.h"
+
+void *user_alloc(struct task_struct *user_t, size_t size);
+void use_free(struct task_struct *user_t,void *block);
+void *use_sbrk(struct task_struct *user_t,int incr);
+
+#endif

src/include/memory.h

@@ -6,15 +6,23 @@
 #include "isr.h"
 
 #define KHEAP_INITIAL_SIZE 0xf00000
-#define KHEAP_START      0xc0000000
+#define KHEAP_START      0xa0000000
 #define STACK_SIZE 32768
 
+#define USER_START 0xb0000000
+#define USER_END (USER_START + 0xf00000)
+#define USER_HEAP_END (USER_END - STACK_SIZE)
+
+#define US_B_START 0xe0000000
+#define US_B_END 0xe1000000
+
 #define INDEX_FROM_BIT(a) (a / (8*4))
 #define OFFSET_FROM_BIT(a) (a % (8*4))
 
 typedef char ALIGN[16];
 
 #include "multiboot.h"
+#include "common.h"
 
 typedef struct page {
     uint32_t present: 1;
@@ -24,17 +32,17 @@ typedef struct page {
     uint32_t dirty: 1;
     uint32_t unused: 7;
     uint32_t frame: 20;
-} page_t;
+}__attribute__((packaged)) page_t;
 
 typedef struct page_table {
     page_t pages[1024];
-} page_table_t;
+}__attribute__((packaged)) page_table_t;
 
 typedef struct page_directory {
     page_table_t *tables[1024];
     uint32_t tablesPhysical[1024];
     uint32_t physicalAddr;
-} page_directory_t;
+}__attribute__((packaged)) page_directory_t;
 
 typedef union header {
     struct {
@@ -57,7 +65,7 @@ void *memmove(void *dest, const void *src, size_t num);
 
 void switch_page_directory(page_directory_t *dir);
 
-page_t *get_page(uint32_t address, int make, page_directory_t *dir);
+page_t *get_page(uint32_t address, int make, page_directory_t *dir,bool ist);
 
 void alloc_frame(page_t *page, int is_kernel, int is_writable);
 

src/include/mouse.h

@@ -0,0 +1,12 @@
+#ifndef CRASHPOWEROS_MOUSE_H
+#define CRASHPOWEROS_MOUSE_H
+
+#include "common.h"
+
+uint8_t mouse_read();
+void mouse_reset();
+void mouse_wait(uint8_t a_type);
+void mouse_write(uint8_t a_write);
+void mouse_install();
+
+#endif

src/include/panic.h

@@ -1,4 +1,13 @@
 #ifndef CRASHPOWEROS_PANIC_H
 #define CRASHPOWEROS_PANIC_H
 
+enum PANIC_TYPE{
+    ILLEGAL_KERNEL_STATUS,
+    OUT_OF_MEMORY,
+    KERNEL_PAGE_FAULT
+};
+
+void panic_pane(char* msg,enum PANIC_TYPE type);
+void init_eh();
+
 #endif

src/include/printf.h

@@ -5,6 +5,8 @@
 #include <stdint.h>
 #include <stdarg.h>
 
+#include "common.h"
+
 int vsprintf(char *buf, const char *fmt, va_list args);
 int sprintf(char *buf, const char *fmt, ...);
 void printf(const char *formet, ...);
@@ -14,5 +16,6 @@ void putchar(char c);
 void logk(char *message);
 void logkf(char *formet,...);
 void screen_clear();
+void klogf(bool isok,char* fmt,...);
 
 #endif //CRASHPOWEROS_PRINTF_H

src/include/task.h

@@ -2,6 +2,11 @@
 #define CRASHPOWEROS_TASK_H
 
 #include "memory.h"
+#include "vfs.h"
+
+typedef struct {
+    int (*main)(int argc,char* * argv);
+}user_func_t;
 
 typedef
 enum task_state {
@@ -25,8 +30,14 @@ struct context {
 struct task_struct {
     volatile task_state state;  // 进程当前状态
     int pid;           // 进程标识符
+    int mem_size; //内存利用率
     char *name;        // 进程名
     void *stack;         // 进程的内核栈地址
+    header_t *head;
+    header_t *tail;
+    bool isUser;
+    uint32_t program_break;
+    uint32_t program_break_end;
     page_directory_t *pgd_dir;     // 进程页表
     struct context context;     // 上下文信息
     struct task_struct *next;   // 链表指针
@@ -60,4 +71,7 @@ void start_task(struct  task_struct *task);
 
 int get_procs();
 
+void switch_to_user_mode(uint32_t func);
+
+int32_t user_process(char* path, char *name);
 #endif //CRASHPOWEROS_TASK_H

src/kernel/gdt.c

@@ -45,6 +45,10 @@ void set_kernel_stack(uintptr_t stack) {
     tss.esp0 = stack;
 }
 
+void set_tss_ss0(uintptr_t ss){
+    tss.ss0 = ss;
+}
+
 void gdt_install() {
     gdt_ptr.limit = sizeof(gdt_entry_t) * GDT_LENGTH - 1;
     gdt_ptr.base = (uint32_t)&gdt_entries;

src/kernel/heap.c

@@ -0,0 +1,66 @@
+#include "../include/heap.h"
+#include "../include/printf.h"
+
+extern struct task_struct *current;
+
+static header_t *use_get_free_block(struct task_struct *user_t, size_t size) {
+    header_t *curr = user_t->head;
+    while (curr) {
+        if (curr->s.is_free && curr->s.size >= size) return curr;
+        curr = curr->s.next;
+    }
+    return NULL;
+}
+
+void *use_sbrk(struct task_struct *user_t,int incr) {
+    if (user_t->program_break + incr >= (user_t->program_break_end)) return (void *) -1;
+    void *prev_break = user_t->program_break;
+    user_t->program_break += incr;
+    return prev_break;
+}
+
+void *user_alloc(struct task_struct *user_t, size_t size) {
+    uint32_t total_size;
+    void *block;
+    header_t *header;
+    if (!size) return NULL;
+    header = use_get_free_block(user_t,size);
+    if (header) {
+        header->s.is_free = 0;
+        return (void *) (header + 1);
+    }
+    total_size = sizeof(header_t) + size;
+    block = use_sbrk(user_t,total_size);
+    if (block == (void *) -1) return NULL;
+    header = block;
+    header->s.size = size;
+    header->s.is_free = 0;
+    header->s.next = NULL;
+    if (!user_t->head) user_t->head = header;
+    if (user_t->tail) user_t->tail->s.next = header;
+    user_t->tail = header;
+    return (void *) (header + 1);
+}
+
+void use_free(struct task_struct *user_t,void *block) {
+    header_t *header, *tmp;
+    if (!block) return;
+    header = (header_t *) block - 1;
+    if ((char *) block + header->s.size == user_t->program_break) {
+        if (user_t->head == user_t->tail) user_t->head = user_t->tail = NULL;
+        else {
+            tmp = user_t->head;
+            while (tmp) {
+                if (tmp->s.next == user_t->tail) {
+                    tmp->s.next = NULL;
+                    user_t->tail = tmp;
+                }
+                tmp = tmp->s.next;
+            }
+        }
+        use_sbrk(user_t,0 - sizeof(header_t) - header->s.size);
+        return;
+    }
+    header->s.is_free = 1;
+}
+

src/kernel/idt.c

@@ -9,6 +9,15 @@ idt_ptr_t idt_ptr;
 
 extern void idt_flush(uint32_t);
 
+void idt_use_reg(uint8_t num,uint32_t base){
+    idt_entries[num].base_low = base & 0xFFFF;
+    idt_entries[num].base_high = (base >> 16) & 0xFFFF; // 拆成低位和高位
+
+    idt_entries[num].sel = 0x08;
+    idt_entries[num].always0 = 0;
+    idt_entries[num].flags = 0x8E | 0x60;
+}
+
 void idt_set_gate(uint8_t num, uint32_t base, uint16_t sel, uint8_t flags) {
     idt_entries[num].base_low = base & 0xFFFF;
     idt_entries[num].base_high = (base >> 16) & 0xFFFF; // 拆成低位和高位

src/kernel/kernel.c

@@ -18,12 +18,16 @@
 #include "../include/vfs.h"
 #include "../include/fat.h"
 #include "../include/iso9660.h"
+#include "../include/panic.h"
+#include "../include/mouse.h"
+#include "../include/desktop.h"
 
 #define CHECK_FLAG(flags,bit)   ((flags) & (1 << (bit)))
 
 extern uint32_t end;
 extern int status;
 extern vdisk vdisk_ctl[10];
+extern bool hasFS;
 uint32_t placement_address = (uint32_t) & end;
 
 void reset_kernel(){
@@ -38,6 +42,8 @@ void shutdown_kernel(){
     kill_all_task();
     clock_sleep(10);
     power_off();
+
+
 }
 
 uint32_t memory_all(){
@@ -70,59 +76,72 @@ void kernel_main(multiboot_t *multiboot) {
     }
 
     initVBE(multiboot);
-
+    printf("CPOS_Kernel %s (GRUB Multiboot) on an i386.\n",OS_VERSION);
-    printf("[kernel]: VBE driver load success!\n");
+    printf("Memory Size: %dMB\n",(multiboot->mem_upper + multiboot->mem_lower) / 1024 + 1);
+    printf("Graphics[ width: %d | height: %d | address: %08x ]\n",multiboot->framebuffer_width,multiboot->framebuffer_height,multiboot->framebuffer_addr);
     gdt_install();
     idt_install();
-    printf("[kernel]: description table config success!\n");
     init_timer(1);
     acpi_install();
-    printf("[kernel]: ACPI enable success!\n");
     init_page(multiboot);
-    printf("[kernel]: page set success!\n");
+
     init_sched();
-    printf("[kernel]: task load success!\n");
     init_keyboard();
-    printf("[kernel]: Keyboard driver load success!\n");
+
     init_pit();
     io_sti();
     init_pci();
-    printf("[kernel]: PCI driver load success!\n");
     init_vdisk();
     ide_initialize(0x1F0, 0x3F6, 0x170, 0x376, 0x000);
-    printf("[kernel]: Disk driver load success!\n");
     init_vfs();
     Register_fat_fileSys();
-    printf("iso\n");
     init_iso9660();
-    printf("[kernel]: FileSystem load success!\n");
     syscall_install();
 
-
+    char disk_id = '0';
 
     for (int i = 0; i < 10; i++) {
         if (vdisk_ctl[i].flag) {
             vdisk vd = vdisk_ctl[i];
             char id = i + ('A');
-            vfs_mount_disk(id,id);
+            if(vfs_mount_disk(id,id)){
+                disk_id = id;
+                klogf(true,"Mount disk: %c\n",disk_id);
+            }
         }
     }
+    init_eh();
+    hasFS = false;
+    if(disk_id != '0'){
+        if(vfs_change_disk(disk_id)){
+            klogf(true,"Chang default mounted disk.\n");
+            hasFS = true;
+        }
+    } else klogf(false,"Unable to find available IDE devices.\n");
 
-
+    bool pcnet_init = pcnet_find_card();
-    //vfs_mount_disk('A','A');
+    klogf(pcnet_init,"Enable network device pcnet.\n");
-    if(vfs_change_disk('A'))
+    if(pcnet_init){
-        printf("[FileSystem]: Change disk win!\n");
-
-    if(pcnet_find_card()){
         //init_pcnet_card();
-    } else printf("[kernel]: Cannot found pcnet.\n");
+    }
-
+    klogf(true,"Kernel load done!\n");
-    print_cpu_id();
+    printf("\n\n");
-
     clock_sleep(25);
 
-    int pid = kernel_thread(setup_shell, NULL, "CPOS-Shell");
+   // vfs_change_disk('B');
-    kernel_thread(check_task,&pid,"CPOS-SHELL-CHECK");
+    vfs_change_path("apps");
+
+    user_process("init.bin","User-Init");
+    user_process("service.bin","Service");
+
+    print_proc();
+
+    //menu_sel();
+
+    //uint32_t pid = kernel_thread(setup_shell,NULL,"CPOS-Shell");
+    //kernel_thread(check_task,&pid,"CPOS-SC");
+
+    //panic_pane("Proccess out of memory error!",OUT_OF_MEMORY);
 
     for (;;) {
         io_hlt();

src/kernel/kheap.c

@@ -1,10 +1,13 @@
 #include "../include/memory.h"
+#include "../include/task.h"
+#include "../include/printf.h"
 
 header_t *head = NULL, *tail = NULL; // 内存块链表
 extern page_directory_t *current_directory;
 extern uint32_t end; // declared in linker.ld
 static uint32_t placement_address = (uint32_t) &end;
 void *program_break, *program_break_end;
+extern struct task_struct *current;
 
 uint32_t memory_usage(){
     header_t *curr = head;
@@ -36,7 +39,7 @@ static uint32_t kmalloc_int(size_t sz, uint32_t align, uint32_t *phys) {
         void *addr = alloc(sz); // 直接malloc，align丢掉了
         if (phys) {
             // 需要物理地址，先找到对应页
-            page_t *page = get_page((uint32_t) addr, 0, current_directory);
+            page_t *page = get_page((uint32_t) addr, 0, current_directory,false);
             *phys = page->frame * 0x1000 + ((uint32_t) addr & 0x00000FFF);
         }
         return (uint32_t) addr;
@@ -113,7 +116,6 @@ void kfree(void *block) {
     header_t *header, *tmp;
     if (!block) return;
     header = (header_t *) block - 1;
-
     if ((char *) block + header->s.size == program_break) {
         if (head == tail) head = tail = NULL;
         else {

src/kernel/page.c

@@ -51,7 +51,9 @@ uint32_t first_frame() {
 }
 
 void alloc_frame(page_t *page, int is_kernel, int is_writable) {
-    if (page->frame) return;
+    if (page->present) {
+        return;
+    }
     else {
         uint32_t idx = first_frame();
         if (idx == (uint32_t) - 1) {
@@ -61,6 +63,7 @@ void alloc_frame(page_t *page, int is_kernel, int is_writable) {
         }
 
         set_frame(idx * 0x1000);
+        memset(page,0,4);
         page->present = 1; // 现在这个页存在了
         page->rw = is_writable ? 1 : 0; // 是否可写由is_writable决定
         page->user = is_kernel ? 0 : 1; // 是否为用户态由is_kernel决定
@@ -93,12 +96,9 @@ void page_flush(page_directory_t *dir){
 }
 
 void page_switch(page_directory_t *dir){
-    io_cli();
     current_directory = dir;
-    logkf("TablePhy: %08x | KERPhy: %08x\n",(&dir->tablesPhysical),kernel_directory->tablesPhysical);
+    asm volatile("mov %0, %%cr3" : : "r"(&dir->tablesPhysical));
-    asm volatile("mov %0, %%cr3" : : "r"(&dir->tablesPhysical)); // 设置cr3寄存器切换页表
+
-    logk("Switch directory win!\n");
-    io_sti();
 }
 
 void switch_page_directory(page_directory_t *dir) {
@@ -111,17 +111,23 @@ void switch_page_directory(page_directory_t *dir) {
     asm volatile("mov %0, %%cr0" : : "r"(cr0));
 }
 
-page_t *get_page(uint32_t address, int make, page_directory_t *dir) {
+page_t *get_page(uint32_t address, int make, page_directory_t *dir,bool ist) {
 
     address /= 0x1000;
+
     uint32_t table_idx = address / 1024;
-    if (dir->tables[table_idx]) return &dir->tables[table_idx]->pages[address % 1024];
+
+    if (dir->tables[table_idx]){
+        page_t *pgg = &dir->tables[table_idx]->pages[address % 1024];
+        return pgg;
+    }
     else if (make) {
         uint32_t tmp;
-        dir->tables[table_idx] = (page_table_t *) kmalloc_ap(sizeof(page_table_t), &tmp);
+        dir->tables[table_idx] = (page_table_t *) kmalloc_i_ap(sizeof(page_table_t), &tmp);
         memset(dir->tables[table_idx], 0, 0x1000);
         dir->tablesPhysical[table_idx] = tmp | 0x7;
-        return &dir->tables[table_idx]->pages[address % 1024];
+        page_t *pgg = &dir->tables[table_idx]->pages[address % 1024];
+        return pgg;
     } else return 0;
 }
 
@@ -141,11 +147,11 @@ void page_fault(registers_t *regs) {
     if (present) {
         printf("Type: present;\n\taddress: %x  \n", faulting_address);
     } else if (rw) {
-        printf("Type: read-only;\n\taddress: %x", faulting_address);
+        printf("Type: read-only;\n\taddress: %x\n", faulting_address);
     } else if (us) {
-        printf("Type: user-mode;\n\taddres: %x", faulting_address);
+        printf("Type: user-mode;\n\taddres: %x\n", faulting_address);
     } else if (reserved) {
-        printf("Type: reserved;\n\taddress: %x", faulting_address);
+        printf("Type: reserved;\n\taddress: %x\n", faulting_address);
     } else if (id) {
         printf("Type: decode address;\n\taddress: %x\n", faulting_address);
     }
@@ -162,7 +168,7 @@ void page_fault(registers_t *regs) {
 }
 
 static page_table_t *clone_table(page_table_t *src, uint32_t *physAddr) {
-    page_table_t *table = (page_table_t *) kmalloc_ap(sizeof(page_table_t), physAddr);
+    page_table_t *table = (page_table_t *) kmalloc_i_ap(sizeof(page_table_t), physAddr);
     memset(table, 0, sizeof(page_directory_t));
 
     int i;
@@ -220,25 +226,35 @@ void init_page(multiboot_t *mboot) {
 
     while (i < placement_address + 0x30000) {
         // 内核部分对ring3而言可读不可写 | 无偏移页表映射
-        alloc_frame(get_page(i, 1, kernel_directory), 0, 0);
+        alloc_frame(get_page(i, 1, kernel_directory,false), 1, 1);
         i += 0x1000;
     }
 
     unsigned int j = mboot->framebuffer_addr,size = mboot->framebuffer_height * mboot->framebuffer_width*mboot->framebuffer_bpp;
 
     while (j <= mboot->framebuffer_addr + size){
-        alloc_frame_line(get_page(j,1,kernel_directory),j,0,0);
+        alloc_frame_line(get_page(j,1,kernel_directory,false),j,1,1);
         j += 0x1000;
     }
 
-
     for (int i = KHEAP_START; i < KHEAP_START + KHEAP_INITIAL_SIZE; i++) {
-        alloc_frame(get_page(i, 1, kernel_directory), 0, 0);
+        alloc_frame(get_page(i, 1, kernel_directory,false), 1, 1);
     }
 
+
     register_interrupt_handler(14, page_fault);
-    switch_page_directory(clone_directory(kernel_directory));
+    switch_page_directory(kernel_directory);
 
     program_break = (void *) KHEAP_START;
     program_break_end = (void *) (KHEAP_START + KHEAP_INITIAL_SIZE);
+
+    klogf(true,"Memory manager is enable\n"
+               "Kernel: 0x00 - 0x%08x "
+               "Framebuffer: 0x%08x - 0x%08x "
+               "KernelHeap: 0x%08x - 0x%08x "
+               "BaseFrame: 0x%08x\n",
+          placement_address + 0x30000,
+          mboot->framebuffer_addr,mboot->framebuffer_addr + size,
+          KHEAP_START,KHEAP_START + KHEAP_INITIAL_SIZE,
+          frames);
 }

src/kernel/panic.c

@@ -0,0 +1,89 @@
+#include "../include/panic.h"
+#include "../include/task.h"
+#include "../include/isr.h"
+#include "../include/io.h"
+#include "../include/printf.h"
+#include "../include/bmp.h"
+#include "../include/vfs.h"
+#include "../include/timer.h"
+#include "../include/graphics.h"
+#include "../include/acpi.h"
+
+extern struct task_struct *current;
+extern uint32_t *screen;
+extern uint32_t back_color;
+extern uint32_t color;
+extern int32_t cx;
+extern int32_t cy;
+extern uint32_t c_width;
+extern uint32_t c_height;
+Bmp *panic_bmp;
+
+static GP_13(registers_t *reg){
+    if(current->pid == 0){
+        printf("Kernel PANIC(#GP), Please restart your CPOS Kernel.\n");
+        while(1) io_hlt();
+    }else {
+        task_kill(current->pid);
+    }
+}
+
+static UD_6(registers_t *reg){
+    if(current->pid == 0){
+        printf("Kernel PANIC(#GP), Please restart your CPOS Kernel.\n");
+        while(1) io_hlt();
+    }else {
+        task_kill(current->pid);
+    }
+}
+
+void panic_pane(char* msg,enum PANIC_TYPE type){
+    io_cli();
+    kill_all_task();
+    back_color = 0x1e90ff;
+    color = 0xffffff;
+    screen_clear();
+    if(panic_bmp != NULL)
+        display(panic_bmp,0,0,true);
+    cx = 10;
+    cy = c_height - 10;
+
+    register uint32_t ebx asm("ebx");
+    register uint32_t ecx asm("ecx");
+
+    printf("%s: %s\n",type == ILLEGAL_KERNEL_STATUS ? "ILLEGAL_KERNEL_STATUS" : (type == OUT_OF_MEMORY ? "OUT_OF_MEMORY" :(type == KERNEL_PAGE_FAULT ? "KERNEL_PAGE_FAULT" : "UNKOWN_ERROR")),msg);
+    cx = 10;
+    printf("EAX: %08x | EBX: %08x | ECX: %08x | ESP: %08x | EBP: %08x | EDI: %08x | ESI: %08x\n",current,ebx,ecx,current->context.esp
+            ,current->context.ebp,current->context.edi,current->context.esi);
+    printf("\n\n");
+    cx = 10;
+    printf("Restarting your system...\n");
+
+    for (int i = 90; i < 1200; i++) {
+        for (int j = 650; j < 670; j++) {
+            drawPixel(i,j,0xffffff);
+        }
+        sleep(1);
+    }
+    sleep(100);
+    power_reset();
+    while (1) io_hlt();
+}
+
+void init_eh(){
+    register_interrupt_handler(13,GP_13);
+    register_interrupt_handler(6,UD_6);
+
+    if(vfs_change_disk('B')){
+        uint32_t size = vfs_filesize("panic.bmp");
+        panic_bmp = NULL;
+        if(size == -1){
+            klogf(false,"Enable graphics user interface panic.\n");
+        } else{
+            Bmp *bmp = kmalloc(size);
+            vfs_readfile("panic.bmp",bmp);
+            panic_bmp = bmp;
+            klogf(true,"Enable graphics user interface panic.\n");
+        }
+    }
+}

src/kernel/syscall.c

@@ -1,32 +1,16 @@
 #include "../include/syscall.h"
 #include "../include/printf.h"
 #include "../include/isr.h"
+#include "../include/description_table.h"
+#include "../include/graphics.h"
 
-void syscall_handler(registers_t *regs){
+void syscall_handler(registers_t regs){
-    if (regs->eax >= SYSCALL_NUM)
+    if(regs.eax == 0x01){
-        return;
+        putchar((regs.edx));
-
+    }
-    void *location = NULL;//syscalls[regs->eax];
+    return;
-
-    printf("Syscall Win: %08x\n",regs->eax);
-
-    int ret;
-    asm volatile (" \
-      push %1; \
-      push %2; \
-      push %3; \
-      push %4; \
-      push %5; \
-      call *%6; \
-      pop %%ebx; \
-      pop %%ebx; \
-      pop %%ebx; \
-      pop %%ebx; \
-      pop %%ebx; \
-    " : "=a" (ret) : "r" (regs->edi), "r" (regs->esi), "r" (regs->edx), "r" (regs->ecx), "r" (regs->ebx), "r" (location));
-    regs->eax = ret;
 }
 
 void syscall_install(){
-    register_interrupt_handler(0x80,syscall_handler);
+    idt_use_reg(80, syscall_handler);
 }

src/kernel/task.c

@@ -3,6 +3,15 @@
 #include "../include/graphics.h"
 #include "../include/io.h"
 #include "../include/description_table.h"
+#include "../include/vfs.h"
+#include "../include/timer.h"
+#include "../include/shell.h"
+#include "../include/heap.h"
+#include "../include/elf.h"
+
+#define SA_RPL_MASK 0xFFFC
+#define SA_TI_MASK 0xFFFB
+#define GET_SEL(cs, rpl) ((cs & SA_RPL_MASK & SA_TI_MASK) | (rpl))
 
 struct task_struct *running_proc_head = NULL;
 struct task_struct *wait_proc_head = NULL;
@@ -13,139 +22,143 @@ extern page_directory_t *kernel_directory;
 extern void switch_to(struct context *prev, struct context *next);
 
 int now_pid = 0;
+int can_sche = 1;
 
-struct task_struct* get_current(){
+struct task_struct *get_current() {
     return current;
 }
 
-void print_proc_t(int *i,struct task_struct *base,struct task_struct *cur,int is_print){
+void print_proc_t(int *i, struct task_struct *base, struct task_struct *cur, int is_print) {
-    if(cur->pid == base->pid){
+    if (cur->pid == base->pid) {
-        if(is_print){
+        if (is_print) {
             switch (cur->state) {
                 case TASK_RUNNABLE:
-                    printf("%-17s      %-2d     %s\n",cur->name,cur->pid,"Running");
+                    printf("%-17s      %-2d     %s   %d\n", cur->name, cur->pid, "Running");
                     break;
                 case TASK_SLEEPING:
-                    printf("%-17s      %-2d     %s\n",cur->name,cur->pid,"Sleeping");
+                    printf("%-17s      %-2d     %s   %d\n", cur->name, cur->pid, "Sleeping");
                     break;
                 case TASK_UNINIT:
-                    printf("%-17s      %-2d     %s\n",cur->name,cur->pid,"Init");
+                    printf("%-17s      %-2d     %s   %d\n", cur->name, cur->pid, "Init");
                     break;
                 case TASK_ZOMBIE:
-                    printf("%-17s      %-2d     %s\n",cur->name,cur->pid,"Zombie");
+                    printf("%-17s      %-2d     %s   %d\n", cur->name, cur->pid, "Zombie");
                     break;
                 case TASK_DEATH:
-                    printf("%-17s      %-2d     %s\n",cur->name,cur->pid,"Death");
+                    printf("%-17s      %-2d     %s   %d\n", cur->name, cur->pid, "Death");
                     break;
             }
         }
         (*i)++;
-    } else{
+    } else {
-        if(is_print){
+        if (is_print) {
             switch (cur->state) {
                 case TASK_RUNNABLE:
-                    printf("%-17s      %-2d     %s\n",cur->name,cur->pid,"Running");
+                    printf("%-17s      %-2d     %s   %d\n", cur->name, cur->pid, "Running");
                     break;
                 case TASK_SLEEPING:
-                    printf("%-17s      %-2d     %s\n",cur->name,cur->pid,"Sleeping");
+                    printf("%-17s      %-2d     %s   %d\n", cur->name, cur->pid, "Sleeping");
                     break;
                 case TASK_UNINIT:
-                    printf("%-17s      %-2d     %s\n",cur->name,cur->pid,"Init");
+                    printf("%-17s      %-2d     %s   %d\n", cur->name, cur->pid, "Init");
                     break;
                 case TASK_ZOMBIE:
-                    printf("%-17s      %-2d     %s\n",cur->name,cur->pid,"Zombie");
+                    printf("%-17s      %-2d     %s   %d\n", cur->name, cur->pid, "Zombie");
                     break;
                 case TASK_DEATH:
-                    printf("%-17s      %-2d     %s\n",cur->name,cur->pid,"Death");
+                    printf("%-17s      %-2d     %s   %d\n", cur->name, cur->pid, "Death");
                     break;
             }
         }
         (*i)++;
-        print_proc_t(i,base,cur->next,is_print);
+        print_proc_t(i, base, cur->next, is_print);
     }
 }
 
-int get_procs(){
+int get_procs() {
     int index = 0;
-    print_proc_t(&index,current,current->next,0);
+    print_proc_t(&index, current, current->next, 0);
     return index;
 }
 
-void print_proc(){
+void print_proc() {
     int index = 0;
-    print_proc_t(&index,current,current->next,1);
+    print_proc_t(&index, current, current->next, 1);
     printf("====---------------[Processes]----------------====\n");
-    printf("Name                  Pid     Status [All Proc: %d]\n\n",index);
+    printf("Name                  Pid     Status    MemUsage [All Proc: %d]\n\n", index);
 }
 
-static void found_task(int pid,struct task_struct *head,struct task_struct *base,struct task_struct **argv,int first){
+static void
+found_task(int pid, struct task_struct *head, struct task_struct *base, struct task_struct **argv, int first) {
     struct task_struct *t = base;
-    if(t == NULL){
+    if (t == NULL) {
         argv = NULL;
         return;
     }
-    if(t->pid == pid){
+    if (t->pid == pid) {
         *argv = t;
         return;
-    } else{
+    } else {
-        if(!first)
+        if (!first)
-            if(head->pid == t->pid){
+            if (head->pid == t->pid) {
                 argv = NULL;
                 return;
             }
-        found_task(pid,head,t->next,argv,0);
+        found_task(pid, head, t->next, argv, 0);
     }
 }
 
-struct task_struct* found_task_pid(int pid){
+struct task_struct *found_task_pid(int pid) {
     struct task_struct *argv = NULL;
-    found_task(pid,running_proc_head,running_proc_head,&argv,1);
+    found_task(pid, running_proc_head, running_proc_head, &argv, 1);
-    if(argv == NULL){
+    if (argv == NULL) {
-        printf("Cannot found task Pid:[%d].\n",pid);
+        printf("Cannot found task Pid:[%d].\n", pid);
         return NULL;
     }
     return argv;
 }
 
-void wait_task(struct task_struct *task){
+void wait_task(struct task_struct *task) {
     task->state = TASK_SLEEPING;
 }
 
-void start_task(struct  task_struct *task){
+void start_task(struct task_struct *task) {
     task->state = TASK_RUNNABLE;
 }
 
-void task_kill(int pid){
+void task_kill(int pid) {
+    io_cli();
     struct task_struct *argv = found_task_pid(pid);
-    if(argv == NULL){
+    if (argv == NULL) {
-        printf("Cannot found task Pid:[%d].\n",pid);
+        printf("Cannot found task Pid:[%d].\n", pid);
         return;
     }
-    if(argv->pid == 0){
+    if (argv->pid == 0) {
-        printf("[\033kernel\036]: Taskkill cannot terminate kernel processes.\n");
+        printf("\033ff3030;[kernel]: Taskkill cannot terminate kernel processes.\033c6c6c6;\n");
         return;
     }
     argv->state = TASK_DEATH;
     printf("Taskkill process PID:%d Name:%s\n", current->pid, current->name);
-    printf("Task [%s] exit code: -130.\n",argv->name);
+    printf("Task [%s] exit code: -130.\n", argv->name);
     io_sti();
+
     kfree(argv);
     struct task_struct *head = running_proc_head;
     struct task_struct *last = NULL;
-    while (1){
+    while (1) {
-        if(head->pid == argv->pid){
+        if (head->pid == argv->pid) {
             last->next = argv->next;
+            io_sti();
             return;
         }
         last = head;
         head = head->next;
     }
-    io_cli();
 }
 
 void schedule() {
-    if (current) {
+    if (current && can_sche) {
-        if(current->next->state == TASK_SLEEPING){
+        if (current->next->state == TASK_SLEEPING) {
             change_task_to(current->next->next);
             return;
         }
@@ -159,22 +172,122 @@ void change_task_to(struct task_struct *next) {
         current = next;
 
         page_switch(current->pgd_dir);
-        set_kernel_stack(current->stack);
+        set_kernel_stack(current->stack + STACK_SIZE); // 没有 TSACK_SIZE
         switch_to(&(prev->context), &(current->context));
     }
 }
+void n() {
+    printf("Hello! User!\n");
+    for(;;);
+}
+
+
+int32_t user_process(char *path, char *name){
+    can_sche = 0;
+    if(path == NULL){
+        printf("Cannot create process! exec path is NULL\n");
+        return -1;
+    }
+    uint32_t size = vfs_filesize(path);
+    if(size == -1){
+        printf("Cannot font exec file\n");
+        return -1;
+    }
+    io_cli();
 
-int32_t kernel_thread(int (*fn)(void *), void *arg,char* name) {
     struct task_struct *new_task = (struct task_struct *) kmalloc(STACK_SIZE);
-    assert(new_task != NULL, "kern_thread: kmalloc error");
+    assert(new_task != NULL, "user_pcb: kmalloc error");
 
     // 将栈低端结构信息初始化为 0
-    memset(new_task,0, sizeof(struct task_struct));
+    memset(new_task, 0, sizeof(struct task_struct));
 
     new_task->state = TASK_RUNNABLE;
     new_task->stack = current;
     new_task->pid = now_pid++;
-    new_task->pgd_dir = clone_directory(current->pgd_dir) ;
+
+    page_directory_t *page = clone_directory(kernel_directory);
+    new_task->pgd_dir = page;
+    new_task->mem_size = 0;
+    new_task->program_break = USER_START;
+    new_task->program_break_end = USER_HEAP_END;
+    new_task->name = name;
+    new_task->isUser = 1;
+
+    io_sti();
+
+    page_switch(page);
+
+    for (int i = USER_START; i < USER_END;i++) {
+        page_t *pg = get_page(i,1,page, false);
+        alloc_frame(pg,0,1);
+    }
+
+    char* buffer = user_alloc(new_task,size);
+
+    memset(buffer,0,size);
+    vfs_readfile(path,buffer);
+
+    Elf32_Ehdr *ehdr = buffer;
+    if(!elf32Validate(ehdr)){
+        printf("Unknown exec file format.\n");
+        return -1;
+    }
+
+    uint32_t main = load_elf(ehdr,page);
+
+    printf("Main ADDRESS: %08x\n",main);
+
+    uint32_t *stack_top = (uint32_t * )((uint32_t) new_task + STACK_SIZE);
+
+    *(--stack_top) = (uint32_t) main;
+    *(--stack_top) = (uint32_t) kthread_exit;
+    *(--stack_top) = (uint32_t) switch_to_user_mode;
+
+    new_task->context.esp = (uint32_t) new_task + STACK_SIZE - sizeof(uint32_t) * 3;
+
+    // 设置新任务的标志寄存器未屏蔽中断，很重要
+    new_task->context.eflags = 0x200;
+    new_task->next = running_proc_head;
+
+    page_switch(kernel_directory);
+
+    // 找到当前进任务队列，插入到末尾
+    struct task_struct *tailt = running_proc_head;
+    assert(tailt != NULL, "Must init sched!");
+
+    while (tailt->next != running_proc_head) {
+        tailt = tailt->next;
+    }
+    tailt->next = new_task;
+    can_sche = 1;
+    io_sti();
+    return new_task->pid;
+}
+
+
+int32_t kernel_thread(int (*fn)(void *), void *arg, char *name) {
+    io_cli();
+    struct task_struct *new_task = (struct task_struct *) kmalloc(STACK_SIZE);
+    assert(new_task != NULL, "kern_thread: kmalloc error");
+
+    // 将栈低端结构信息初始化为 0
+    memset(new_task, 0, sizeof(struct task_struct));
+
+    new_task->state = TASK_RUNNABLE;
+    new_task->stack = current;
+    new_task->pid = now_pid++;
+    new_task->pgd_dir = kernel_directory;
+    new_task->mem_size = 0;
+    new_task->isUser = 0;
+
+    extern header_t *head;
+    extern header_t *tail;
+    extern void *program_break;
+    extern void *program_break_end;
+    current->head = head;
+    current->tail = tail;
+    current->program_break = program_break;
+    current->program_break_end = program_break_end;
 
     new_task->name = name;
 
@@ -191,14 +304,14 @@ int32_t kernel_thread(int (*fn)(void *), void *arg,char* name) {
     new_task->next = running_proc_head;
 
     // 找到当前进任务队列，插入到末尾
-    struct task_struct *tail = running_proc_head;
+    struct task_struct *tailt = running_proc_head;
-    assert(tail != NULL, "Must init sched!");
+    assert(tailt != NULL, "Must init sched!");
 
-    while (tail->next != running_proc_head) {
+    while (tailt->next != running_proc_head) {
-        tail = tail->next;
+        tailt = tailt->next;
     }
-    tail->next = new_task;
+    tailt->next = new_task;
-
+    io_sti();
     return new_task->pid;
 }
 
@@ -209,18 +322,64 @@ void kthread_exit() {
     while (1);
 }
 
-void kill_all_task(){
+void kill_all_task() {
     struct task_struct *head = running_proc_head;
-    while (1){
+    while (1) {
         head = head->next;
-        if(head == NULL || head->pid == running_proc_head->pid){
+        if (head == NULL || head->pid == running_proc_head->pid) {
             return;
         }
-        if(head->pid == current->pid) continue;
+        if (head->pid == current->pid) continue;
         task_kill(head->pid);
     }
 }
 
+
+#define SA_RPL3 3
+void A() {
+    printf("USE3 HELLO!\n");
+    asm("hlt");
+    for(;;);
+}
+
+
+void switch_to_user_mode(uint32_t func) {
+    io_cli();
+    set_kernel_stack(current->stack + STACK_SIZE);
+    unsigned esp = USER_END;
+    current->context.eflags = (0 << 12 | 0b10 | 1 << 9);
+    intr_frame_t iframe;
+    iframe.edi = 1;
+    iframe.esi = 2;
+    iframe.ebp = 3;
+    iframe.esp_dummy = 4;
+    iframe.ebx = 5;
+    iframe.edx = 6;
+    iframe.ecx = 7;
+    iframe.eax = 8;
+
+    iframe.gs = GET_SEL(4 * 8, SA_RPL3);
+    iframe.ds = GET_SEL(4 * 8, SA_RPL3);
+    iframe.es = GET_SEL(4 * 8, SA_RPL3);
+    iframe.fs = GET_SEL(4 * 8, SA_RPL3);
+
+    iframe.ss = GET_SEL(4 * 8, SA_RPL3);
+    iframe.cs = GET_SEL(3 * 8, SA_RPL3);
+
+    iframe.eip = func; //用户可执行程序入口
+    iframe.eflags = (0 << 12 | 0b10 | 1 << 9);
+    iframe.esp = esp; // 设置用户态堆栈
+
+    intr_frame_t  *a = &iframe;
+    asm volatile("movl %0, %%esp\n"
+                 "popa\n"
+                 "pop %%gs\n"
+                 "pop %%fs\n"
+                 "pop %%es\n"
+                 "pop %%ds\n"
+                 "iret" ::"m"(a));
+}
+
 void init_sched() {
     // 为当前执行流创建信息结构体 该结构位于当前执行流的栈最低端
     current = (struct task_struct *) kmalloc(sizeof(struct task_struct));
@@ -230,8 +389,19 @@ void init_sched() {
     current->stack = current;   // 该成员指向栈低地址
     current->pgd_dir = kernel_directory;
     current->name = "CPOS-System";
-
+    current->mem_size = 0;
     current->next = current;
+    current->isUser = 0;
+
+    extern header_t *head;
+    extern header_t *tail;
+    extern void *program_break;
+    extern void *program_break_end;
+    current->head = head;
+    current->tail = tail;
+    current->program_break = program_break;
+    current->program_break_end = program_break_end;
 
     running_proc_head = current;
+    klogf(true,"Load task schedule. | KernelTaskName: %s PID: %d\n",current->name,current->pid);
 }

src/kernel/timer.c

@@ -58,7 +58,6 @@ void init_pit(void) {
 }
 
 void init_timer(uint32_t timer) {
-    printf("REG TIMER INT: %d, function address: %08x.\n",IRQ0, &timer_handle);
     register_interrupt_handler(IRQ0, &timer_handle);
     uint32_t divisor = 1193180 / timer;
 

src/sysapp/desktop.c

@@ -0,0 +1,5 @@
+#include "../include/desktop.h"
+
+void menu_sel(){
+
+}

src/sysapp/panic.c

@@ -1 +0,0 @@
-#include "../include/panic.h"

src/sysapp/shell.c

@@ -12,6 +12,7 @@
 
 extern Queue *key_char_queue;
 extern vdisk vdisk_ctl[10];
+extern bool hasFS;
 
 char getc() {
     while (key_char_queue->size == 0x00) {
@@ -134,6 +135,11 @@ void cmd_mkdir(int argc, char **argv) {
         return;
     }
 
+    if(!hasFS){
+        printf("Cannot find fs in this disk.\n");
+        return;
+    }
+
     vfs_file *file = get_cur_file(argv[1]);
 
     if(file != NULL){
@@ -152,6 +158,11 @@ void cmd_del(int argc, char **argv) {
         return;
     }
 
+    if(!hasFS){
+        printf("Cannot find fs in this disk.\n");
+        return;
+    }
+
     vfs_file *file = get_cur_file(argv[1]);
 
     if(file == NULL){
@@ -213,6 +224,10 @@ void cmd_cd(int argc, char **argv) {
         print("[Shell-CD]: If there are too few parameters, please specify the path.\n");
         return;
     }
+    if(!hasFS){
+        printf("Cannot find fs in this disk.\n");
+        return;
+    }
     if (vfs_change_path(argv[1]) == 0) printf("Invalid path.\n");
 }
 
@@ -229,6 +244,11 @@ void cmd_type(int argc,char ** argv){
         print("[Shell-TYPE]: If there are too few parameters, please specify the path.\n");
         return;
     }
+    if(!hasFS){
+        printf("Cannot find fs in this disk.\n");
+        return;
+    }
+
     char *buffer;
     buffer = (char*) kmalloc(vfs_filesize(argv[1]));
 
@@ -335,7 +355,7 @@ void setup_shell() {
 
     screen_clear();
 
-    printf("Welcome to %s %s (CPOS Kernel x86_64)\n"
+    printf("Welcome to %s %s (CPOS Kernel i386)\n"
            "\n"
            " * SourceCode:     https://github.com/xiaoyi1212/CoolPotOS\n"
            " * Website:        https://github.com/plos-clan\n"
@@ -360,7 +380,15 @@ void setup_shell() {
     char *buffer[255];
 
     while (1) {
-        vfs_getPath(buffer);
+        if(hasFS) vfs_getPath(buffer);
+        else{
+            buffer[0] = 'n';
+            buffer[1] = 'o';
+            buffer[2] = '_';
+            buffer[3] = 'f';
+            buffer[4] = 's';
+            buffer[5] = '\0';
+        }
         printf("\03343cd80;%s@localhost: \0334169E1;%s\\\033c6c6c6;$ ", user1, buffer);
         if (gets(com, MAX_COMMAND_LEN) <= 0) continue;
         argc = cmd_parse(com, argv, ' ');
@@ -414,6 +442,6 @@ void setup_shell() {
             print("disk[list|<ID>|cg<ID>]List or view disks.\n");
             print("cd  <path>            Change shell top directory.\n");
             print("sb3       <name>      Player a wav sound file.\n");
-        } else printf("\033[Shell]: Unknown command '%s'.\n", argv[0]);
+        } else printf("\033ff3030;[Shell]: Unknown command '%s'.\033c6c6c6;\n", argv[0]);
     }
 }

src/util/bmp.c

@@ -0,0 +1,23 @@
+#include "../include/bmp.h"
+#include "../include/graphics.h"
+
+void display(Bmp *bmp,uint32_t x, uint32_t y, bool isTransparent) {
+    if (bmp->magic != 0x4d42 || bmp->bitsPerPixel != 24)
+        return;
+    uint8_t *data = (uint8_t *)bmp + bmp->bmpDataOffset;
+    for (uint32_t yOffset = 0; yOffset < bmp->frameHeight; ++yOffset) {
+        for (uint32_t xOffset = 0; xOffset < bmp->frameWidth; ++xOffset) {
+            uint32_t offset = (yOffset * bmp->frameWidth + xOffset) * 3;
+            uint8_t b = data[offset + 0];
+            uint8_t g = data[offset + 1];
+            uint8_t r = data[offset + 2];
+            uint32_t color = (r << 16) | (g << 8) | b;
+            if (isTransparent && color == 0)
+                continue;
+            drawPixel(x + xOffset, y + bmp->frameHeight - 1 - yOffset, color);
+        }
+    }
+    return;
+}
+
+

src/util/elf.c

@@ -0,0 +1,56 @@
+#include "../include/elf.h"
+#include "../include/common.h"
+
+#define MAX(a, b) a > b ? a : b
+
+static uint32_t div_round_up(uint32_t num, uint32_t size) {
+    return (num + size - 1) / size;
+}
+
+bool elf32Validate(Elf32_Ehdr *hdr) {
+    return hdr->e_ident[EI_MAG0] == ELFMAG0 && hdr->e_ident[EI_MAG1] == ELFMAG1 &&
+           hdr->e_ident[EI_MAG2] == ELFMAG2 && hdr->e_ident[EI_MAG3] == ELFMAG3;
+}
+
+void load_segment(Elf32_Phdr *phdr,page_directory_t *pdt, void *elf) {
+    unsigned int p = div_round_up(phdr->p_memsz, 0x1000);
+    int d = phdr->p_paddr;
+    if (d & 0x00000fff) {
+        unsigned e = d + phdr->p_memsz;
+        d = d & 0xfffff000;
+        e &= 0xfffff000;
+        p = (e - d) / 0x1000 + 1;
+    }
+    for (unsigned i = 0; i < p; i++) {
+        alloc_frame(get_page(d + i * 0x1000,1,pdt,false),0,1);
+    }
+    memcpy(phdr->p_vaddr, elf + phdr->p_offset, phdr->p_filesz);
+    if (phdr->p_memsz > phdr->p_filesz) { // 这个是bss段
+        memset(phdr->p_vaddr + phdr->p_filesz, 0, phdr->p_memsz - phdr->p_filesz);
+    }
+}
+
+uint32_t load_elf(Elf32_Ehdr *hdr,page_directory_t *pdt) {
+    Elf32_Phdr *phdr = (Elf32_Phdr *)((uint32_t)hdr + hdr->e_phoff);
+    for (int i = 0; i < hdr->e_phnum; i++) {
+        load_segment(phdr,pdt, (void *)hdr);
+        phdr++;
+    }
+    return hdr->e_entry;
+}
+
+void elf32LoadData(Elf32_Ehdr *elfhdr, uint8_t *ptr) {
+    uint8_t *p = (uint8_t *)elfhdr;
+    for (int i = 0; i < elfhdr->e_shnum; i++) {
+        Elf32_Shdr *shdr =
+                (Elf32_Shdr *)(p + elfhdr->e_shoff + sizeof(Elf32_Shdr) * i);
+
+        if (shdr->sh_type != SHT_PROGBITS || !(shdr->sh_flags & SHF_ALLOC)) {
+            continue;
+        }
+
+        for (int i = 0; i < shdr->sh_size; i++) {
+            ptr[shdr->sh_addr + i] = p[shdr->sh_offset + i];
+        }
+    }
+}

src/util/printf.c

@@ -304,6 +304,20 @@ void printf(const char *formet, ...) {
     va_end(ap);
 }
 
+
+void klogf(bool isok,char* fmt,...){
+    int len;
+    va_list ap;
+    va_start(ap, fmt);
+    char *buf[1024] = {0};
+    len = vsprintf(buf, fmt, ap);
+    if(isok){
+        printf("[  \03300ee76;OK\033c6c6c6;  ]: %s",buf);
+    } else{
+        printf("[\033ee6363;FAILED\033c6c6c6;]: %s",buf);
+    }
+}
+
 void screen_clear(){
     if(vbe_status){
         vbe_clear();
@@ -333,6 +347,6 @@ void logkf(char *formet,...){
 }
 
 void logk(char *message){
-    for (size_t i = 0; i < strlen(message); i++)
+    for (size_t i = 0; i < strlen(message); i++);
-        write_serial(message[i]);
+        //write_serial(message[i]);
 }