From 3abecc6af72dfa98a45bdc81e17b666e544db053 Mon Sep 17 00:00:00 2001 From: xiaoyi1212 Date: Wed, 17 Jan 2024 23:57:08 +0800 Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E5=8A=A0=E6=96=87=E4=BB=B6=E7=B3=BB?= =?UTF-8?q?=E7=BB=9F?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- build.py | 2 +- cpos.qcow2 | Bin 0 -> 393216 bytes driver/disk.c | 73 +++++++++ include/disk.h | 11 ++ include/fat16.h | 48 ++++++ include/multiboot.h | 2 +- include/shell.h | 3 + isodir/sys/kernel.elf | Bin 26360 -> 31348 bytes kernel/fat16.c | 357 ++++++++++++++++++++++++++++++++++++++++++ sysapp/shell.c | 68 +++++++- target/disk.o | Bin 0 -> 1572 bytes target/fat16.o | Bin 0 -> 5172 bytes target/shell.o | Bin 2884 -> 4620 bytes 13 files changed, 560 insertions(+), 4 deletions(-) create mode 100644 cpos.qcow2 create mode 100644 driver/disk.c create mode 100644 include/disk.h create mode 100644 include/fat16.h create mode 100644 kernel/fat16.c create mode 100644 target/disk.o create mode 100644 target/fat16.o diff --git a/build.py b/build.py index 1c35589..b98113a 100644 --- a/build.py +++ b/build.py @@ -92,5 +92,5 @@ def linker(): #交叉编译链接 if a != 0: exit(-1) -os.system("qemu-system-i386 -kernel isodir\\sys\\kernel.elf") +os.system("qemu-system-i386 -kernel isodir\\sys\\kernel.elf -drive format=qcow2,file=cpos.qcow2") diff --git a/cpos.qcow2 b/cpos.qcow2 new file mode 100644 index 0000000000000000000000000000000000000000..9907ff2a472487364dc9300a86ff67b35bc2df53 GIT binary patch literal 393216 zcmeIuL2lDP6adh%TXrnEK&+=Xpl2vaiGWlPq==uDwkl(DOj*X;w-rX z5{uRjMTSagxIAd-VgS)QI$H~mMNf2i{EI4j~PtFm}FF7oTTB%#PY zp2adhJeZswSMRQ?ZO+nAPyRMLSz35`QJR$5`}o&P%UU=mK!5-N0t5&UAV7cs0RjXF z5FkK+009C72oNAZfB*pk1PBlyK!5-N0t5&UAV7cs0RjXF5FkK+009C72oNAZfB*pk z1PBlyK!5-N0t5&UAV7cs0RjXF5FkK+009C72oNAZfB*pk1PBlyK!5-N0t5&UAV7cs z0RjXF5FkK+009C72oNAZfB*pk1PBlyK!5-N0t5&UAV7cs0RjXF5FkK+009C72oNAZ zfB*pk1PBlyK!5-N0t5&UAV7cs0RjXF5FkK+009C72oNAZfB*pk1PBlyK!5-N0t5&U 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zqwRk-|Ci4(e664F^>dfwQ3&4}mHAhEy8M#)CWMD|Hr54#009C72oNAZfB*pk1PBly zK!5-N0t5&UAV7cs0RjXF5FkK+009C72oNAZfB*pk1PBlyK!5-N0t5&UAV7cs0RjXF z5FkK+009C72oNAZfB*pk1PBlyK!5-N0t5&UAV7cs0RjXF5FkK+009C72oNAZfB*pk Y1PBlyK!5-N0t5&UAV7csf&WI}0+UWcasU7T literal 0 HcmV?d00001 diff --git a/driver/disk.c b/driver/disk.c new file mode 100644 index 0000000..c9551cd --- /dev/null +++ b/driver/disk.c @@ -0,0 +1,73 @@ +#include "../include/disk.h" +#include "../include/io.h" + +void wait_disk_ready() +{ + while (1) + { + int data = io_in8(0x1f7); + if ((data & 0x88) == 0x08) // 第3位为1表示硬盘控制器已准备好数据传输，第7位为1表示硬盘忙。 + { + return; + } + } +} + +void select_sector(int lba) +{ + io_out8(0x1f2, 1); + io_out8(0x1f3, lba); + io_out8(0x1f4, lba >> 8); + io_out8(0x1f5, lba >> 16); + io_out8(0x1f6, (((lba >> 24) & 0x0f) | 0xe0)); +} + +void read_disk_one_sector(int lba, unsigned int memory_addrress) +{ + while (io_in8(0x1f7) & 0x80) + ; + select_sector(lba); + io_out8(0x1f7, 0x20); + wait_disk_ready(); + for (int i = 0; i < 256; i++) + { + short data = (short)io_in16(0x1f0); + *((short *)memory_addrress) = data; + memory_addrress += 2; + } +} + +void write_disk_one_sertor(int lba, unsigned int memory_addrress) +{ + while (io_in8(0x1f7) & 0x80) + ; + select_sector(lba); + io_out8(0x1f7, 0x30); + wait_disk_ready(); + for (int i = 0; i < 256; i++) + { + short data = *((short *)memory_addrress); + io_out16(0x1f0, data); + memory_addrress += 2; + } +} + +void read_disk(int lba, int sector_count, unsigned int memory_addrress) +{ + for (int i = 0; i < sector_count; i++) + { + read_disk_one_sector(lba, memory_addrress); + lba++; + memory_addrress += 512; + } +} + +void write_disk(int lba, int sector_count, unsigned int memory_addrress) +{ + for (int i = 0; i < sector_count; i++) + { + write_disk_one_sertor(lba, memory_addrress); + lba++; + memory_addrress += 512; + } +} \ No newline at end of file diff --git a/include/disk.h b/include/disk.h new file mode 100644 index 0000000..0350aef --- /dev/null +++ b/include/disk.h @@ -0,0 +1,11 @@ +#ifndef CPOS_DISK_H +#define CPOS_DISK_H + +void wait_disk_ready(); //不适用于SATA硬盘 +void select_sector(int lba); +void read_disk_one_sector(int lba, unsigned int memory_addrress); +void write_disk_one_sertor(int lba, unsigned int memory_addrress); +void read_disk(int lba, int sector_count, unsigned int memory_addrress); +void write_disk(int lba, int sector_count, unsigned int memory_addrress); + +#endif \ No newline at end of file diff --git a/include/fat16.h b/include/fat16.h new file mode 100644 index 0000000..b842703 --- /dev/null +++ b/include/fat16.h @@ -0,0 +1,48 @@ +#ifndef CPOS_FAT16_H +#define CPOS_FAT16_H + +#define SECTOR_SIZE 512 +#define FAT1_SECTORS 32 //FAT1占用扇区数 +#define ROOT_DIR_SECTORS 32 //根目录占用扇区数 +#define SECTOR_NUM_OF_FAT1_START 1 //FAT1起始扇区号 +#define SECTOR_NUM_OF_ROOT_DIR_START 33 //根目录起始扇区号 +#define SECTOR_NUM_OF_DATA_START 65 //数据区起始扇区号，对应簇号为2。 +#define SECTOR_CLUSTER_BALANCE SECTOR_NUM_OF_DATA_START - 2 //簇号加上该值正好对应扇区号。 +#define MAX_FILE_NUM 16 //最大文件数 + +// FAT16目录项结构(32B); +struct File { + // 文件名 如果第一个字节为0xe5，代表这个文件已经被删除；如果第一个字节为0x00，代表这一段不包含任何文件名信息。 + unsigned char name[8]; + unsigned char ext[3]; // 扩展名 + // 属性：bit0只读文件，bit1隐藏文件，bit2系统文件，bit3非文件信息(比如磁盘名称)，bit4目录，bit5文件。 + unsigned char type; // 0x20 文件 | 0x10 目录 + unsigned char reserve[10]; // 保留 + unsigned short time; // 最后一次写入时间 + unsigned short date; // 最后一次写入日期 + unsigned short clustno; // 起始簇号 + unsigned int size; // 文件大小 +}; + +void read_root_dir_sector1(struct File *root_entries); +void save_root_dir_sector1(struct File *root_entries); +void read_one_cluster(unsigned short clustno, unsigned int memory_addrress); +int read_root_dir(struct File *file_infos); +void get_fat1(unsigned short *fat1); +void save_fat1(unsigned short *fat1); +void get_file_all_clustnos(unsigned short first_clustno, unsigned short *clustnos); +void get_file_all_clustnos(unsigned short first_clustno, unsigned short *clustnos); +void read_file(struct File *file, void *file_addr); +void check_name_or_ext(char *str, int len); +void check_name_and_ext(char *name, char *ext); +void analyse_fullname(char *fullname, char *name, char *ext); +int find_file(char *name, char *ext, struct File *const file); +struct File *create_file(char *fullname); +struct File *create_dir(char *fullname); +struct File *open_file(char *fullname); +void alter_file_name(struct File *file, char *new_fullname); +void alter_dir_entry(struct File *file); +void save_file(struct File *file, char *content); +void delete_file(struct File *file); + +#endif \ No newline at end of file diff --git a/include/multiboot.h b/include/multiboot.h index 89a7131..0b6abcd 100644 --- a/include/multiboot.h +++ b/include/multiboot.h @@ -3,7 +3,7 @@ #include -#define VERSION "0.0.1" +#define VERSION "0.0.2" #define LOADER_SAVE_GRAPHICS_ADDRESS 0xB8000 // loader中保存显存地址的地址 #define VARTUAL_GRAPHICS_ADDRESS 0xe0000000 diff --git a/include/shell.h b/include/shell.h index e47feff..bbd0594 100644 --- 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z_&jhi{7*CRAz-06RFP;9hiQLI~-wmbvZ|X4r~^5_yGnr(BBTs5%dEWE2>zC=bLya z?74~rttXfY%pF-aCX@lp)x6Z_0Y_n_B=rTr4({nlVlF$Rt70n%1}Fm#Pv~x7d)SDV z10SAn^OCIv?jEj+JB(nGegNj)v<%P(%ndDxxpv6Kb1&zGg($(ll$Z;R4wUFy&>Uer zFt=sdSdnDlVoaq6jS*%8ccUWmv6=$R-9u@g56soEd^u$!^YD4ZF%JeYVb^3Ka93Cb zntM!zXJ^H5OpB9$!rkf zVPGq6qP-yK@NwX;!xDNLnER;G{x`rX{*n!Qt`NzvG2lxB@UxgHxq}hBgqVL{fdMz! zWQW&*`M(5-4+C@YB(M3O>9AN8PMr8$p8@8!g4BNr%-ypmpyvRt0dsemjS2Mwuf{y0 z-vfmpqN9XR@ff*azz!pUxr55a4vE0rWtBJu_;9wiZ}XZ~Q%#vNy#B#8t7_`(Rh#U! z+t=8&t-s33sNYgkyMB}1Cf2XBud1=viaMZaQ&-tHui9d-UA1|wU5lt4uNBqaowdI9 zS9!VO!7BR}K`~#f-%?vhyq35?Y^>V2wq|?tH?@lP(-vn6gKe!{Z?A%%^_w0P@VBPc zE>^9o+O$q&FiYP&$hN(@S(0c+98QAj?J_e+!H=?vLOj zX~oM7-bZOI+lQGkNkms@$G2xI71}r3vtueS)5IVkY%{dcJCY-hRSGd7N}IJK!+d@n LwgI*DHKYC?tw89f diff --git a/kernel/fat16.c b/kernel/fat16.c new file mode 100644 index 0000000..1098416 --- /dev/null +++ b/kernel/fat16.c @@ -0,0 +1,357 @@ +#include "../include/fat16.h" +#include "../include/memory.h" +#include "../include/disk.h" + +void read_root_dir_sector1(struct File *root_entries) +{ + read_disk(SECTOR_NUM_OF_ROOT_DIR_START, 1, (unsigned int)root_entries); +} + +void save_root_dir_sector1(struct File *root_entries) +{ + write_disk(SECTOR_NUM_OF_ROOT_DIR_START, 1, (unsigned int)root_entries); +} + +void read_one_cluster(unsigned short clustno, unsigned int memory_addrress) +{ + read_disk(clustno + SECTOR_CLUSTER_BALANCE, 1, memory_addrress); +} + +int read_root_dir(struct File *file_infos) +{ + struct File *root_entries = kmalloc(SECTOR_SIZE); + read_root_dir_sector1(root_entries); + int n = 0; // 记录文件数 + for (int i = 0; i < MAX_FILE_NUM; i++) + { + if (root_entries[i].name[0] == 0) + { + break; + } + if (root_entries[i].name[0] != 0xe5) + { + file_infos[n] = root_entries[i]; + n++; + } + } + kfree(root_entries); + return n; +} + +void get_fat1(unsigned short *fat1) +{ + read_disk(SECTOR_NUM_OF_FAT1_START, FAT1_SECTORS, (unsigned int)fat1); // 将FAT1全部读取到内存中。 +} + +void save_fat1(unsigned short *fat1) +{ + write_disk(SECTOR_NUM_OF_FAT1_START, FAT1_SECTORS, (unsigned int)fat1); // 将FAT1全部写回到内存中。 +} + +void get_file_all_clustnos(unsigned short first_clustno, unsigned short *clustnos) +{ + unsigned short *fat1 = kmalloc(FAT1_SECTORS * SECTOR_SIZE); + get_fat1(fat1); + *clustnos = first_clustno; + while (1) + { + unsigned short clustno = *(fat1 + *clustnos); + clustnos++; + *clustnos = clustno; + if (clustno >= 0xfff8) // 大于等于0xfff8表示文件的最后一个簇 + { + break; + } + } + kfree(fat1); +} + +void read_file(struct File *file, void *file_addr) +{ + if (file->size == 0) + { + return; + } + int cluster_count = (file->size + 511) / 512; + unsigned short *clustnos = kmalloc(cluster_count * 2); + get_file_all_clustnos(file->clustno, clustnos); + for (int i = 0; i < cluster_count; i++) + { + read_one_cluster(clustnos[i], (unsigned int)file_addr); + file_addr += 512; + } + kfree(clustnos); +} + +void check_name_or_ext(char *str, int len) +{ + for (int i = 0; i < len; i++) + { + if (str[i] == 0) + { + str[i] = ' '; + } + else if ('a' <= str[i] && str[i] <= 'z') + { + str[i] -= 0x20; + } + } +} + +void check_name_and_ext(char *name, char *ext) +{ + check_name_or_ext(name, 8); + check_name_or_ext(ext, 3); +} + +void analyse_fullname(char *fullname, char *name, char *ext) +{ + int ext_dot_index = -1; + for (int i = 11; i >= 0; i--) + { + if (fullname[i] == '.') + { + ext_dot_index = i; + } + } + if (ext_dot_index == -1) // 没有后缀名的情况 + { + memcpy(name, fullname, 8); + memset(ext, ' ', 3); + } + else if (ext_dot_index == 0) // 没有文件名的情况 + { + memset(name, ' ', 8); + memcpy(ext, fullname + 1, 3); + } + else + { + memcpy(name, fullname, ext_dot_index); + memcpy(ext, fullname + ext_dot_index + 1, 3); + } + check_name_and_ext(name, ext); +} + +int find_file(char *name, char *ext, struct File *const file) +{ + struct File *root_entries = kmalloc(SECTOR_SIZE); + read_root_dir_sector1(root_entries); + int isfind = 0; + for (int i = 0; i < MAX_FILE_NUM; i++) + { + if (memcmp(root_entries[i].name, name, 8) == 0 && memcmp(root_entries[i].ext, ext, 3) == 0) + { + if (file != 0) + { + *file = root_entries[i]; + } + isfind = 1; + } + } + kfree(root_entries); + return isfind; +} + +struct File *create_dir(char *fullname){ + char name[8] = {0}; + char ext[3] = {0}; + analyse_fullname(fullname, name, ext); + int isfind = find_file(name, ext, 0); + if (isfind) { + return 0; //文件已存在。 + } + + struct File *file = (struct File *) kmalloc(32); + memcpy(file->name, name, 8); + memcpy(file->ext, " ", 3); + file->type = 0x10; + file->time = 0; + file->date = 0; + file->clustno = 0; + file->size = 0; + + struct File *root_entries = kmalloc(SECTOR_SIZE); + read_root_dir_sector1(root_entries); + for (int i = 0; i < MAX_FILE_NUM; i++) { + if (root_entries[i].name[0] == 0 || root_entries[i].name[0] == 0xe5) { //找一个空闲的文件项存放。 + root_entries[i] = *file; + break; + } + } + save_root_dir_sector1(root_entries); + kfree(root_entries); + return file; +} + +struct File *create_file(char *fullname) { + char name[8] = {0}; + char ext[3] = {0}; + analyse_fullname(fullname, name, ext); + int isfind = find_file(name, ext, 0); + if (isfind) { + return 0; //文件已存在。 + } + + struct File *file = (struct File *) kmalloc(32); + memcpy(file->name, name, 8); + memcpy(file->ext, ext, 3); + file->type = 0x20; + file->time = 0; + file->date = 0; + file->clustno = 0; + file->size = 0; + + struct File *root_entries = kmalloc(SECTOR_SIZE); + read_root_dir_sector1(root_entries); + for (int i = 0; i < MAX_FILE_NUM; i++) { + if (root_entries[i].name[0] == 0 || root_entries[i].name[0] == 0xe5) { //找一个空闲的文件项存放。 + root_entries[i] = *file; + break; + } + } + save_root_dir_sector1(root_entries); + + kfree(root_entries); + //open_file_task(file); + kfree(name); + kfree(ext); + return file; +} + +struct File *open_file(char *fullname) { + char name[8] = {0}; + char ext[3] = {0}; + analyse_fullname(fullname, name, ext); + struct File *file = (struct File *) kmalloc(32); + int isfind = find_file(name, ext, file); + if (!isfind) { + kfree(file); + file = 0; + } else { + //set_opened_file(file); + } + return file; +} + +void alter_file_name(struct File *file, char *new_fullname) { + char new_name[8] = {0}; + char new_ext[3] = {0}; + analyse_fullname(new_fullname, new_name, new_ext); + struct File *root_entries = kmalloc(SECTOR_SIZE); + read_root_dir_sector1(root_entries); + for (int i = 0; i < MAX_FILE_NUM; i++) { + if (memcmp(root_entries[i].name, file->name, 8) == 0 && memcmp(root_entries[i].ext, file->ext, 3) == 0) { + memcpy(root_entries[i].name, new_name, 8); + memcpy(root_entries[i].ext, new_ext, 3); + } + } + save_root_dir_sector1(root_entries); + kfree(root_entries); +} + +void alter_dir_entry(struct File *file) { + struct File *root_entries = kmalloc(SECTOR_SIZE); + read_root_dir_sector1(root_entries); + for (int i = 0; i < MAX_FILE_NUM; i++) { + if (memcmp(root_entries[i].name, file->name, 8) == 0 && memcmp(root_entries[i].ext, file->ext, 3) == 0) { + root_entries[i] = *file; + } + } + save_root_dir_sector1(root_entries); + kfree(root_entries); +} + +void save_file(struct File *file, char *content) { + unsigned int file_size = strlen(content); //内容大小 + if (file_size == 0 && file->size == 0) { + return; + } + file->size = file_size; + int sector_num = (file_size + 511) / 512; //将要占用的扇区数 + unsigned short *fat1 = kmalloc(FAT1_SECTORS * SECTOR_SIZE); + get_fat1(fat1); + unsigned short clustno = file->clustno; + unsigned short next_clustno; + if (file->clustno == 0) //第一次写入 + { + clustno = 2; //可用簇号从2开始 + while (1) { + if (*(fat1 + clustno) == 0) //空闲簇号 + { + file->clustno = clustno; //分配起始簇号 + break; + } else { + clustno++; + } + } + } + int i = 0; + while (1) { + write_disk(SECTOR_CLUSTER_BALANCE + clustno, 1, (unsigned int) content); + if (i == sector_num - 1) { //已写完最后一扇区。 + break; + } + i++; + content += 512; + next_clustno = *(fat1 + clustno); + if (next_clustno == 0 || next_clustno >= 0xfff8) { //寻找下一个可用簇号 + next_clustno = clustno + 1; + while (1) { + if (*(fat1 + next_clustno) == 0) { + *(fat1 + clustno) = next_clustno; + break; + } else { + next_clustno++; + } + } + } + clustno = next_clustno; + } + next_clustno = *(fat1 + clustno); + *(fat1 + clustno) = 0xffff; //0xfff8~0xffff表示文件结束，没有下一个簇了。 + //如果本次写入的内容比上次的少，上次用过的簇号本次用不完，以下将剩下的簇号清零处理。 + if (1 < next_clustno && next_clustno < 0xfff0) { + while (1) { + clustno = next_clustno; + next_clustno = *(fat1 + clustno); + *(fat1 + clustno) = 0; + if (next_clustno >= 0xfff8) { + break; + } + } + } + alter_dir_entry(file); + save_fat1(fat1); + kfree(fat1); +} + +void delete_file(struct File *file) { + //1.标记目录项为已删除。 + struct File *root_entries = kmalloc(SECTOR_SIZE); + read_root_dir_sector1(root_entries); + for (int i = 0; i < MAX_FILE_NUM; i++) { + if (memcmp(root_entries[i].name, file->name, 8) == 0 && memcmp(root_entries[i].ext, file->ext, 3) == 0) { + root_entries[i].name[0] = 0xe5; + break; + } + } + save_root_dir_sector1(root_entries); + kfree(root_entries); + if (file->clustno == 0) { + return; + } + unsigned short *fat1 = kmalloc(FAT1_SECTORS * SECTOR_SIZE); + get_fat1(fat1); + unsigned short clustno = file->clustno; + unsigned short next_clustno = 0; + while (1) { + next_clustno = *(fat1 + clustno); + *(fat1 + clustno) = 0; + if (next_clustno >= 0xfff8) { + break; + } + clustno = next_clustno; + } + save_fat1(fat1); + kfree(fat1); +} \ No newline at end of file diff --git a/sysapp/shell.c b/sysapp/shell.c index f61251b..cf18628 100644 --- a/sysapp/shell.c +++ b/sysapp/shell.c @@ -5,6 +5,8 @@ #include "../include/keyboard.h" #include "../include/io.h" #include "../include/common.h" +#include "../include/fat16.h" +#include "../include/memory.h" extern Queue *key_char_queue; @@ -78,6 +80,59 @@ void cmd_echo(int argc,char **argv) vga_putchar('\n'); } +void cmd_ls() +{ + struct File *root = (struct File*) kmalloc(sizeof(struct File) * MAX_FILE_NUM); + int files = read_root_dir(root); + int index = 0,size = 0; + + for (int i = 0; i < files; ++i) + { + struct File file = root[i]; + if(!strcmp(file.name,"\0")) continue; + printf("%s %s %d\n",file.name,file.type == 0x20 ? "" : " ",file.size); + index++; + size += file.size; + } + printf(" All File: %d | All Size: %d\n",index,size); + kfree(root); +} + +void cmd_cat(int argc,char **argv) +{ + if(argc <= 2) { + printf("[Shell-CAT]: If there are too few parameters, please specify the filename and data."); + return; + } + struct File *file = open_file(argv[1]); + if(file == NULL){ + printf("[Shell-CAT]: Not found [%s] \n",argv[1]); + return; + } + + save_file(file,argv[2]); + kfree(file); +} + +void cmd_read(int argc,char **argv) +{ + if(argc == 1) { + printf("[Shell-READ]: If there are too few parameters, please specify the filename"); + return; + } + struct File *file = open_file(argv[1]); + char* buffer = (char*) kmalloc(4096); + if(file == NULL){ + printf("[Shell-READ]: Not found [%s] \n",argv[1]); + return; + } + + read_file(file,buffer); + printf("%s\n",buffer); + kfree(buffer); + kfree(file); +} + void setup_shell() { vga_clear(); @@ -106,12 +161,21 @@ void setup_shell() cmd_echo(argc,argv); else if(!strcmp("clear",argv[0])) vga_clear(); + else if(!strcmp("ls",argv[0])) + cmd_ls(); + else if(!strcmp("cat",argv[0])) + cmd_cat(argc,argv); + else if(!strcmp("read",argv[0])) + cmd_read(argc,argv); else if(!strcmp("help",argv[0])||!strcmp("?",argv[0])||!strcmp("h",argv[0])) { vga_writestring("-=[CrashPowerShell Helper]=-\n"); - vga_writestring("help ? h empty Print shell help info.\n"); - vga_writestring("version empty Print os version.\n"); + vga_writestring("help ? h |empty Print shell help info.\n"); + vga_writestring("version |empty Print os version.\n"); vga_writestring("echo Print message.\n"); + vga_writestring("ls |empty List all files.\n"); + vga_writestring("cat Edit a file\n"); + vga_writestring("read Read a file\n"); } else printf("[Shell]: Unknown command '%s'.\n",argv[0]); } diff --git a/target/disk.o b/target/disk.o new file mode 100644 index 0000000000000000000000000000000000000000..1157e2733e1a294b612e7102b2836cb7b923625a GIT binary patch literal 1572 zcmbtUU279T6up~P-9n&IUn)MB2U{xYlKMsCi^ZZv5iJdkX-XQ>W@Wdw2`0PN;#YN1 z3?Web1%2$hz6gR16+!w3^hrTl6arRTHPB)_cXuaAi>Sp5ch1bcXXc(ev&r2v7tTtO zM8YI$pxTP)d83m#Wp;`Ne_|(FC zyTm{wqd~6*hQOK3!)C-65F|Qk%-mGtS$}AyPF=hL>NOaV{LH}lct)IdZ@}RYn z*P8ce%R&O`U&(d<46c}q1+_dl6swAHG@<`3>IrN~PxFfgyay!pZqW26J(t7wi`?c% z$(z0hl{@>TceVSH!}nfsry*-z60aIuGnWeL>fliPH~szRdDPS0ebV3FbFu$`zvHNK zL;&f)-b*$%>)|2JL$9Nxpo#^>#JruN7=;q|3v ov6w>+*UvvtTOaqrJ&2l^l7_`Yp13CT?ZmpCH-!d+f&>)2Ulk60VgLXD literal 0 HcmV?d00001 diff --git a/target/fat16.o b/target/fat16.o new file mode 100644 index 0000000000000000000000000000000000000000..75ba59820b0d978c8358b317d268e6f21aa4b157 GIT binary patch literal 5172 zcma)AeQZZZU+U-|2<_{SPOEUIO`}hm=yJK3(_E~Y%}|UTT4v3xldzgCW{VtFi7otsG3hPo zo{TH=#f!H}rIK;Xe|*$@>tUK!hwg6Pms30?-J5Y4!|P)eQU(~-CtAaw#Er?-Vz*~I zt76Qa_i|;NkH*S+%>y(E?WXoH8}c2g-ao8G>Mv+t=Tl;dk#~(07r3UmM{IEOCb!t& z;Z6AV@+Pm?;O9+#v7v@H)rbwXys1`f2=JzWF&eD6KPkM9Uf2H8`fNaox7n8Ix|KP!-=dN}G~# z`ErTd#?kegoCww3*3Sy1$d%cq%KeUuX7Awf?>!+Dk85PYZyupc%Cn#`?5Z2l0=^^u z{bSlk=9YtdZ$7y5vT>OvUX7LNM)YyfcB`Cw);jnbhaj`bGjT5^#$C!$yk=ANgjXH9 zOMa=B@~-9WC9oDr`)7o{L_6yhZM3s?T=v#ihkQ>>8y8*u*NjrhxBoq`4+0MW5wt|y zinDRdYd-Z2SEf2v()~`<_>}qVY(L)pKk;}M@lgEaM~#yM1CIZnvCc^bbqFS9JelB( zQE}L`sluj9FIME(0J)Iy%=nP0&IBu&pR8b(`|9N5YSHGObGnPX5HoXD{@Asppo}9- zbjT-`TKj7hf_2xm9;p^pDB*-^a9GE&b(>L7rW%!{TvRar{@`gXBo^{&5q0y3TSPrP z;t^3Vk9bAY&m(>jt>KXx5v}EsS`iKKNB~-(n(AWRb^U-Wctxp6DC177?0gH4@e8eS zQ=c;1t{9UwDsQ<`P^QT0f^v-@uYAPft+3TL)th1Q@M$N&{=s42;LpGYC7EEE#luHi z9Ur`A1Ws)yS=LZ^I3HPpvJhEbh}6<>Arg?_UR7ByV>~}oEMK#WB~nW6gLSIHdv9FO z))>P<941)rZY?k1>sC3THPh4l)Yj)w1Cj9Je(o1>H;=hR+{0rY5%=<#SH%51hVdF6 zs}b>99;+4c0FMPGe$x^@j>8cywVHY{Znm8@CfBOG`D{TcN{g-i%`4~b2+^zn{T9q~ z15~I85bb*04$fFUx+JLb#PUMa3Qlys;Be*S%vBeC1ku3GF}N8uY`aOa)6wr$zTi!HY zU%5w>H@j`nOnuVlzCL7qI!Mlz#hHyBD8j=8myH!bs!!*%l=P>yvN}nBtm-sg>C6Y> z9<1TfqG)vU=(uR~@aRR+=;hH#(dg&VDbZNNqt`@ZEssu%#sH7rsynA26m3Q5h?gzl zZDfgEo2+-hoO-K!#BMLwPgNSVM6?D5$9(%6QR;+#3dzA60}JRSFmiDb+?w+;87;p| ze7VMz(gj$aRR8lh7 z8xhKxy1e!^U(SU`+rEN4gRzoo-1ubRDBg+Z?YcjVH^m9nsE;%Ks>)pxhwVC+bG<`1 zugb$_>^4?i*;z|^p)-8ktcmz?RVrVs8q?PYCgEO5Kjq|0yzI<8v9mT4?=98%uA9As zJ!je)k_#JsxjgKMzz)%TO64!Dyu>PQIqM}h`Zg_@_$R#=?e|{Wy!kZyzC*&#lTWv` zkj$re<<@;_KIIo)5IQBtyu}>;tYrEk=MtlOFlUqV<+%8AaoS{AH+;FV@UZD^_2uqE z^buznPv~&os$8F&fWcspv1lanWN>x#*_KCx;U_|mht?u2a~s{WPII&WmYi?GYPO*K z3uFc8W%#x7Pz8e@-;bgP(VhAA_;wo2KZD+Y{&{p-zZLib`cG`S6X-PJf5{<$MDHXT zMmqBMf(%yBKLFhTdK-}BzX5y`^y@bLYhVod5V7e$0p9@KWz&BJ`l}iH64ucAB50?P z{(n0Jkm&!QH@F%53y}Dyfli}&3ZQ=hlQz=)V#r;454tUXIq-#rjJ*s#nh%05g8ta1 ziLdCHk>3FNP5cbp10?=ufKDTQ8$qwdGx#RHX`ZPmE&SC`JIkh19m#B8pO)jqw_II)V)Ij>q`JLHLEsYgmkOKO8)5-R3y&VJ*n>QzIN87X47f* zVp>a*W=pL6l0%){=_L3p8NGe|mJk)gtbKdBy(`(9>PaX2vdQ$zTIEQpw?hu4dQ;uI z`qN2O@9rj6)|2jO-?59JKdmvf6MRw{jrZ(e?XX%pkaa%gY~PM_uf><@hAZ+@s%92V zAxigZ*<|TP4c=3 zA#X1s^#E@gW;cLdg9oA>dP3L(}U3dF?)>=y&7wY zUm+xUgew_4VbkBjnIyg~gy7pl2)RGD@ppt+_Xk3(`3E8RFA{?P0k1Xx3(617KTUZ7 zJWTq5=g|otAwD1r_3!G@Qrm!9*23-1S2o=p(&&JNI#ODSg|_wgvrx8=2;vTh!YtI@ z*VBU&06}-x=pKM+3@*slfWMEy7N=2dqV_p-n9Lf`sU7p7_QMx!qg)SH8Mc6Z*`|@+ zvUOF+q5;xH?J;!X|17?>;Gs2-qf;Y!q|0eEN1g5~LgJ^^2RdxZ(4sx`~VFEgQ{{ujR%5wk! literal 0 HcmV?d00001 diff --git a/target/shell.o b/target/shell.o index 209c2282db38ccf4c9f095a2c2dfabca16397fcc..fa15757ca58559dea032280647df75963252ab16 100644 GIT binary patch literal 4620 zcmbtX4Qx}_6~0c)>X~RsX(_A}cBevHwBiw9RY2h3^jkZZuHK|>vP17W%jjo`GQW`ZG0Tor0RvQ~=LK{ep5~-`&PE0Vo@7#Bv zPWAb&Wx5ZDYWmm%n=W8V2OXeOh@gsK-Z>14sP}ps77OR6O8|IJbp6QXQ9* zLV3==fb9(mO;P>KxzhG@tlf)A#8cQ=S5N{i1-mBdyzhKkJbRv^b%P$QrWtd?fzj|C z>aDzOPt=~8TVLwGYVB$GziRF+v&J73>y~=x zf(`H6pPYlwAz!Yv+^U1O+^7%kW;VQQ4UYfeZ6vbP=G>wvlQLg!whD)8a(8`)o50?r zJ=6U7DX)08mwBps=u+Otw`B(eus1gXm2HBuojM3J~Wt8XJq_HaL+))Od zVaLDF^N=5^J@yuc*IyV_hJdX8pT$GxovmjaWn`dGjq-4m^M$bAQ7#t3=wB*?YaHdn zLb%RRt`x%eJIb{}c&?*dFN7a*lpA78TPK}cOO71+fS>*v91q@upOSr}R(U7VsyzTA z%nDm?

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