diff --git a/30_day/haribote/console.c b/30_day/haribote/console.c
index e8c5c69..dddeba3 100644
--- a/30_day/haribote/console.c
+++ b/30_day/haribote/console.c
@@ -9,8 +9,8 @@ void console_task(struct SHEET *sheet, int memtotal)
 	struct TASK *task = task_now();
 	struct MEMMAN *memman = (struct MEMMAN *) MEMMAN_ADDR;
 	int i, *fat = (int *) memman_alloc_4k(memman, 4 * 2880);
-	struct CONSOLE cons;
 	struct FILEHANDLE fhandle[8];
+	struct CONSOLE cons;
 	char cmdline[30];
 	unsigned char *nihongo = (char *) *((int *) 0x0fe8);
 
@@ -133,19 +133,19 @@ void cons_putchar(struct CONSOLE *cons, int chr, char move)
 				cons_newline(cons);
 			}
 			if (((cons->cur_x - 8) & 0x1f) == 0) {
-				break;	/* 32�Ŋ���؂ꂽ��break */
+				break; /*被32整除则break*/
 			}
 		}
-	} else if (s[0] == 0x0a) {	/* ���s */
+	} else if (s[0] == 0x0a) { /*换行*/
 		cons_newline(cons);
-	} else if (s[0] == 0x0d) {	/* ���A */
-		/* �Ƃ肠�����Ȃɂ����Ȃ� */
-	} else {	/* ���ʂ̕��� */
+	} else if (s[0] == 0x0d) { /*回车*/
+		/*先不做任何操作*/
+	} else { /*一般字符*/
 		if (cons->sht != 0) {
 			putfonts8_asc_sht(cons->sht, cons->cur_x, cons->cur_y, COL8_FFFFFF, COL8_000000, s, 1);
 		}
 		if (move != 0) {
-			/* move��0�̂Ƃ��̓J�[�\����i�߂Ȃ� */
+			/* move为0时光标不后移*/
 			cons->cur_x += 8;
 			if (cons->cur_x == 8 + 240) {
 				cons_newline(cons);
@@ -161,9 +161,9 @@ void cons_newline(struct CONSOLE *cons)
 	struct SHEET *sheet = cons->sht;
 	struct TASK *task = task_now();
 	if (cons->cur_y < 28 + 112) {
-		cons->cur_y += 16; /* ���̍s�� */
+		cons->cur_y += 16; /*到下一行*/
 	} else {
-		/* �X�N���[�� */
+		/*滚动*/
 		if (sheet != 0) {
 			for (y = 28; y < 28 + 112; y++) {
 				for (x = 8; x < 8 + 240; x++) {
@@ -180,7 +180,7 @@ void cons_newline(struct CONSOLE *cons)
 	}
 	cons->cur_x = 8;
 	if (task->langmode == 1 && task->langbyte1 != 0) {
-		cons->cur_x = 16;
+		cons->cur_x += 8;
 	}
 	return;
 }
@@ -208,7 +208,7 @@ void cons_runcmd(char *cmdline, struct CONSOLE *cons, int *fat, int memtotal)
 		cmd_mem(cons, memtotal);
 	} else if (strcmp(cmdline, "cls") == 0 && cons->sht != 0) {
 		cmd_cls(cons);
-	} else if (strcmp(cmdline, "dir") == 0 && cons->sht != 0) {
+	} else if ((strcmp(cmdline, "dir") == 0 || strcmp(cmdline, "ls") == 0) && cons->sht != 0) {
 		cmd_dir(cons);
 	} else if (strcmp(cmdline, "exit") == 0) {
 		cmd_exit(cons, fat);
@@ -218,9 +218,9 @@ void cons_runcmd(char *cmdline, struct CONSOLE *cons, int *fat, int memtotal)
 		cmd_ncst(cons, cmdline, memtotal);
 	} else if (strncmp(cmdline, "langmode ", 9) == 0) {
 		cmd_langmode(cons, cmdline);
-	} else if (cmdline[0] != 0) {
+	}else if (cmdline[0] != 0) {
 		if (cmd_app(cons, fat, cmdline) == 0) {
-			/* �R�}���h�ł͂Ȃ��A�A�v���ł��Ȃ��A����ɋ�s�ł��Ȃ� */
+			/*不是命令，不是应用程序，也不是空行*/
 			cons_putstr0(cons, "Bad command.\n\n");
 		}
 	}
@@ -288,9 +288,9 @@ void cmd_exit(struct CONSOLE *cons, int *fat)
 	memman_free_4k(memman, (int) fat, 4 * 2880);
 	io_cli();
 	if (cons->sht != 0) {
-		fifo32_put(fifo, cons->sht - shtctl->sheets0 + 768);	/* 768�`1023 */
+		fifo32_put(fifo, cons->sht - shtctl->sheets0 + 768); /* 768〜1023 */
 	} else {
-		fifo32_put(fifo, task - taskctl->tasks0 + 1024);	/* 1024�`2023 */
+		fifo32_put(fifo, task - taskctl->tasks0 + 1024); /*1024～2023*/
 	}
 	io_sti();
 	for (;;) {
@@ -306,11 +306,11 @@ void cmd_start(struct CONSOLE *cons, char *cmdline, int memtotal)
 	int i;
 	sheet_slide(sht, 32, 4);
 	sheet_updown(sht, shtctl->top);
-	/* �R�}���h���C���ɓ��͂��ꂽ��������A�ꕶ�����V�����R���\�[���ɓ��� */
+	/*将命令行输入的字符串逐字复制到新的命令行窗口中*/
 	for (i = 6; cmdline[i] != 0; i++) {
 		fifo32_put(fifo, cmdline[i] + 256);
 	}
-	fifo32_put(fifo, 10 + 256);	/* Enter */
+	fifo32_put(fifo, 10 + 256);	 /*回车键*/
 	cons_newline(cons);
 	return;
 }
@@ -320,11 +320,12 @@ void cmd_ncst(struct CONSOLE *cons, char *cmdline, int memtotal)
 	struct TASK *task = open_constask(0, memtotal);
 	struct FIFO32 *fifo = &task->fifo;
 	int i;
-	/* �R�}���h���C���ɓ��͂��ꂽ��������A�ꕶ�����V�����R���\�[���ɓ��� */
+
+	/*将命令行输入的字符串逐字复制到新的命令行窗口中*/
 	for (i = 5; cmdline[i] != 0; i++) {
 		fifo32_put(fifo, cmdline[i] + 256);
 	}
-	fifo32_put(fifo, 10 + 256);	/* Enter */
+	fifo32_put(fifo, 10 + 256); /*回车键*/
 	cons_newline(cons);
 	return;
 }
@@ -352,19 +353,19 @@ int cmd_app(struct CONSOLE *cons, int *fat, char *cmdline)
 	struct SHTCTL *shtctl;
 	struct SHEET *sht;
 
-	/* �R�}���h���C������t�@�C�����𐶐� */
+	/*根据命令行生成文件名*/
 	for (i = 0; i < 13; i++) {
 		if (cmdline[i] <= ' ') {
 			break;
 		}
 		name[i] = cmdline[i];
 	}
-	name[i] = 0; /* �Ƃ肠�����t�@�C�����̌���0�ɂ��� */
+	name[i] = 0; /*暂且将文件名的后面置为0*/
 
-	/* �t�@�C����T�� */
+	/*寻找文件 */
 	finfo = file_search(name, (struct FILEINFO *) (ADR_DISKIMG + 0x002600), 224);
 	if (finfo == 0 && name[i - 1] != '.') {
-		/* ���‚���Ȃ������̂Ō���".HRB"���‚��Ă�����x�T���Ă݂� */
+		/*由于找不到文件，故在文件名后面加上“.hrb”后重新寻找*/
 		name[i    ] = '.';
 		name[i + 1] = 'H';
 		name[i + 2] = 'R';
@@ -374,7 +375,7 @@ int cmd_app(struct CONSOLE *cons, int *fat, char *cmdline)
 	}
 
 	if (finfo != 0) {
-		/* �t�@�C�������‚������ꍇ */
+		/*如果找到文件*/
 		appsiz = finfo->size;
 		p = file_loadfile2(finfo->clustno, &appsiz, fat);
 		if (appsiz >= 36 && strncmp(p + 4, "Hari", 4) == 0 && *p == 0x00) {
@@ -384,8 +385,8 @@ int cmd_app(struct CONSOLE *cons, int *fat, char *cmdline)
 			dathrb = *((int *) (p + 0x0014));
 			q = (char *) memman_alloc_4k(memman, segsiz);
 			task->ds_base = (int) q;
-			set_segmdesc(task->ldt + 0, appsiz - 1, (int) p, AR_CODE32_ER + 0x60);
-			set_segmdesc(task->ldt + 1, segsiz - 1, (int) q, AR_DATA32_RW + 0x60);
+			set_segmdesc(task->ldt + 0, finfo->size - 1, (int) p, AR_CODE32_ER + 0x60);
+			set_segmdesc(task->ldt + 1, segsiz - 1, (int) q, AR_DATA32_RW + 0x60); 
 			for (i = 0; i < datsiz; i++) {
 				q[esp + i] = p[dathrb + i];
 			}
@@ -394,11 +395,11 @@ int cmd_app(struct CONSOLE *cons, int *fat, char *cmdline)
 			for (i = 0; i < MAX_SHEETS; i++) {
 				sht = &(shtctl->sheets0[i]);
 				if ((sht->flags & 0x11) == 0x11 && sht->task == task) {
-					/* �A�v�����J�����ςȂ��ɂ����������𔭌� */
-					sheet_free(sht);	/* �‚��� */
+					/*找到被应用程序遗留的窗口*/
+					sheet_free(sht); /*关闭*/
 				}
 			}
-			for (i = 0; i < 8; i++) {	/* �N���[�Y���ĂȂ��t�@�C�����N���[�Y */
+			for (i = 0; i < 8; i++) { /*将未关闭的文件关闭*/ 
 				if (task->fhandle[i].buf != 0) {
 					memman_free_4k(memman, (int) task->fhandle[i].buf, task->fhandle[i].size);
 					task->fhandle[i].buf = 0;
@@ -414,7 +415,7 @@ int cmd_app(struct CONSOLE *cons, int *fat, char *cmdline)
 		cons_newline(cons);
 		return 1;
 	}
-	/* �t�@�C�������‚���Ȃ������ꍇ */
+	/*没有找到文件的情况*/
 	return 0;
 }
 
@@ -426,8 +427,8 @@ int *hrb_api(int edi, int esi, int ebp, int esp, int ebx, int edx, int ecx, int
 	struct SHTCTL *shtctl = (struct SHTCTL *) *((int *) 0x0fe4);
 	struct SHEET *sht;
 	struct FIFO32 *sys_fifo = (struct FIFO32 *) *((int *) 0x0fec);
-	int *reg = &eax + 1;	/* eax�̎��̔Ԓn */
-		/* �ۑ��̂��߂�PUSHAD�������ɏ��������� */
+	int *reg = &eax + 1; /* eax后面的地址*/
+	/*强行改写通过PUSHAD保存的值*/
 		/* reg[0] : EDI,   reg[1] : ESI,   reg[2] : EBP,   reg[3] : ESP */
 		/* reg[4] : EBX,   reg[5] : EDX,   reg[6] : ECX,   reg[7] : EAX */
 	int i;
@@ -450,7 +451,7 @@ int *hrb_api(int edi, int esi, int ebp, int esp, int ebx, int edx, int ecx, int
 		sheet_setbuf(sht, (char *) ebx + ds_base, esi, edi, eax);
 		make_window8((char *) ebx + ds_base, esi, edi, (char *) ecx + ds_base, 0);
 		sheet_slide(sht, ((shtctl->xsize - esi) / 2) & ~3, (shtctl->ysize - edi) / 2);
-		sheet_updown(sht, shtctl->top); /* ���̃}�E�X�Ɠ��������ɂȂ�悤�Ɏw��F �}�E�X�͂��̏�ɂȂ� */
+		sheet_updown(sht, shtctl->top); /*将窗口图层高度指定为当前鼠标所在图层的高度，鼠标移到上层*/
 		reg[7] = (int) sht;
 	} else if (edx == 6) {
 		sht = (struct SHEET *) (ebx & 0xfffffffe);
@@ -466,13 +467,13 @@ int *hrb_api(int edi, int esi, int ebp, int esp, int ebx, int edx, int ecx, int
 		}
 	} else if (edx == 8) {
 		memman_init((struct MEMMAN *) (ebx + ds_base));
-		ecx &= 0xfffffff0;	/* 16�o�C�g�P�ʂ� */
+		ecx &= 0xfffffff0; /*以16字节为单位*/
 		memman_free((struct MEMMAN *) (ebx + ds_base), eax, ecx);
 	} else if (edx == 9) {
-		ecx = (ecx + 0x0f) & 0xfffffff0; /* 16�o�C�g�P�ʂɐ؂�グ */
+		ecx = (ecx + 0x0f) & 0xfffffff0; /*以16字节为单位进位取整*/
 		reg[7] = memman_alloc((struct MEMMAN *) (ebx + ds_base), ecx);
 	} else if (edx == 10) {
-		ecx = (ecx + 0x0f) & 0xfffffff0; /* 16�o�C�g�P�ʂɐ؂�グ */
+		ecx = (ecx + 0x0f) & 0xfffffff0; /*以16字节为单位进位取整*/
 		memman_free((struct MEMMAN *) (ebx + ds_base), eax, ecx);
 	} else if (edx == 11) {
 		sht = (struct SHEET *) (ebx & 0xfffffffe);
@@ -506,7 +507,7 @@ int *hrb_api(int edi, int esi, int ebp, int esp, int ebx, int edx, int ecx, int
 			io_cli();
 			if (fifo32_status(&task->fifo) == 0) {
 				if (eax != 0) {
-					task_sleep(task);	/* FIFO����Ȃ̂ŐQ�đ҂� */
+					task_sleep(task); /* FIFO为空，休眠并等待*/
 				} else {
 					io_sti();
 					reg[7] = -1;
@@ -515,32 +516,32 @@ int *hrb_api(int edi, int esi, int ebp, int esp, int ebx, int edx, int ecx, int
 			}
 			i = fifo32_get(&task->fifo);
 			io_sti();
-			if (i <= 1 && cons->sht != 0) { /* �J�[�\���p�^�C�} */
-				/* �A�v�����s���̓J�[�\�����o�Ȃ��̂ŁA���‚����͕\���p��1�𒍕����Ă��� */
-				timer_init(cons->timer, &task->fifo, 1); /* ����1�� */
+			if (i <= 1) { /*光标用定时器*/
+				/*应用程序运行时不需要显示光标，因此总是将下次显示用的值置为1*/
+				timer_init(cons->timer, &task->fifo, 1); /*下次置为1*/
 				timer_settime(cons->timer, 50);
 			}
-			if (i == 2) {	/* �J�[�\��ON */
+			if (i == 2) { /*光标ON */
 				cons->cur_c = COL8_FFFFFF;
 			}
-			if (i == 3) {	/* �J�[�\��OFF */
+			if (i == 3) { /*光标OFF */
 				cons->cur_c = -1;
 			}
-			if (i == 4) {	/* �R���\�[��������‚��� */
+			if (i == 4) { /*只关闭命令行窗口*/
 				timer_cancel(cons->timer);
 				io_cli();
-				fifo32_put(sys_fifo, cons->sht - shtctl->sheets0 + 2024);	/* 2024�`2279 */
+				fifo32_put(sys_fifo, cons->sht - shtctl->sheets0 + 2024); /*2024～2279*/
 				cons->sht = 0;
 				io_sti();
 			}
-			if (i >= 256) { /* �L�[�{�[�h�f�[�^�i�^�X�NA�o�R�j�Ȃ� */
+			if (i >= 256) { /*键盘数据（通过任务A）等*/
 				reg[7] = i - 256;
 				return 0;
 			}
 		}
 	} else if (edx == 16) {
 		reg[7] = (int) timer_alloc();
-		((struct TIMER *) reg[7])->flags2 = 1;	/* �����L�����Z���L�� */
+		((struct TIMER *) reg[7])->flags2 = 1; /*允许自动取消*/
 	} else if (edx == 17) {
 		timer_init((struct TIMER *) ebx, &task->fifo, eax + 256);
 	} else if (edx == 18) {
@@ -642,7 +643,7 @@ int *inthandler0c(int *esp)
 	cons_putstr0(cons, "\nINT 0C :\n Stack Exception.\n");
 	sprintf(s, "EIP = %08X\n", esp[11]);
 	cons_putstr0(cons, s);
-	return &(task->tss.esp0);	/* �ُ�I�������� */
+	return &(task->tss.esp0); /*强制结束程序*/
 }
 
 int *inthandler0d(int *esp)
@@ -653,7 +654,7 @@ int *inthandler0d(int *esp)
 	cons_putstr0(cons, "\nINT 0D :\n General Protected Exception.\n");
 	sprintf(s, "EIP = %08X\n", esp[11]);
 	cons_putstr0(cons, s);
-	return &(task->tss.esp0);	/* �ُ�I�������� */
+	return &(task->tss.esp0);	/*强制结束程序*/
 }
 
 void hrb_api_linewin(struct SHEET *sht, int x0, int y0, int x1, int y1, int col)
diff --git a/30_day/haribote/mtask.c b/30_day/haribote/mtask.c
index 14bb46e..f67b935 100644
--- a/30_day/haribote/mtask.c
+++ b/30_day/haribote/mtask.c
@@ -1,4 +1,4 @@
-/* �}���`�^�X�N�֌W */
+/* 多任务管理 */
 
 #include "bootpack.h"
 
@@ -16,7 +16,7 @@ void task_add(struct TASK *task)
 	struct TASKLEVEL *tl = &taskctl->level[task->level];
 	tl->tasks[tl->running] = task;
 	tl->running++;
-	task->flags = 2; /* ���쒆 */
+	task->flags = 2; /*活动中*/
 	return;
 }
 
@@ -25,39 +25,38 @@ void task_remove(struct TASK *task)
 	int i;
 	struct TASKLEVEL *tl = &taskctl->level[task->level];
 
-	/* task���ǂ��ɂ��邩��T�� */
+	/*寻找task所在的位置*/
 	for (i = 0; i < tl->running; i++) {
 		if (tl->tasks[i] == task) {
-			/* �����ɂ��� */
+			/*在这里 */
 			break;
 		}
 	}
 
 	tl->running--;
 	if (i < tl->now) {
-		tl->now--; /* �����̂ŁA��������킹�Ă��� */
+		tl->now--; /*需要移动成员，要相应地处理 */
 	}
 	if (tl->now >= tl->running) {
-		/* now���������Ȓl�ɂȂ��Ă�����A�C������ */
+		/*如果now的值出现异常，则进行修正*/
 		tl->now = 0;
 	}
-	task->flags = 1; /* �X���[�v�� */
+	task->flags = 1; /* 休眠中 */
 
-	/* ���炵 */
+	/* 移动 */
 	for (; i < tl->running; i++) {
 		tl->tasks[i] = tl->tasks[i + 1];
 	}
-
 	return;
 }
 
 void task_switchsub(void)
 {
 	int i;
-	/* ��ԏ�̃��x����T�� */
+	/*寻找最上层的LEVEL */
 	for (i = 0; i < MAX_TASKLEVELS; i++) {
 		if (taskctl->level[i].running > 0) {
-			break; /* ���‚����� */
+			break; /*找到了*/
 		}
 	}
 	taskctl->now_lv = i;
@@ -78,6 +77,7 @@ struct TASK *task_init(struct MEMMAN *memman)
 	struct TASK *task, *idle;
 	struct SEGMENT_DESCRIPTOR *gdt = (struct SEGMENT_DESCRIPTOR *) ADR_GDT;
 
+
 	taskctl = (struct TASKCTL *) memman_alloc_4k(memman, sizeof (struct TASKCTL));
 	for (i = 0; i < MAX_TASKS; i++) {
 		taskctl->tasks0[i].flags = 0;
@@ -92,11 +92,11 @@ struct TASK *task_init(struct MEMMAN *memman)
 	}
 
 	task = task_alloc();
-	task->flags = 2;	/* ���쒆�}�[�N */
-	task->priority = 2; /* 0.02�b */
-	task->level = 0;	/* �ō����x�� */
+	task->flags = 2; /*活动中标志*/
+	task->priority = 2; /* 0.02秒*/
+	task->level = 0; /*最高LEVEL */
 	task_add(task);
-	task_switchsub();	/* ���x���ݒ� */
+	task_switchsub(); /* LEVEL 设置*/
 	load_tr(task->sel);
 	task_timer = timer_alloc();
 	timer_settime(task_timer, task->priority);
@@ -151,8 +151,7 @@ void task_run(struct TASK *task, int level, int priority)
 	if (priority > 0) {
 		task->priority = priority;
 	}
-
-	if (task->flags == 2 && task->level != level) {
+	if (task->flags == 2 && task->level != level) { 
 		/*改变活动中的LEVEL */
 		task_remove(task); /*这里执行之后flag的值会变为1，于是下面的if语句块也会被执行*/
 	}
@@ -161,7 +160,6 @@ void task_run(struct TASK *task, int level, int priority)
 		task->level = level;
 		task_add(task);
 	}
-
 	taskctl->lv_change = 1; /*下次任务切换时检查LEVEL */
 	return;
 }
@@ -183,6 +181,7 @@ void task_sleep(struct TASK *task)
 	return;
 }
 
+
 void task_switch(void)
 {
 	struct TASKLEVEL *tl = &taskctl->level[taskctl->now_lv];