增加命令行窗口（2）

25_day/bootpack.c

@@ -19,9 +19,9 @@ void HariMain(void)
 	unsigned int memtotal;
 	struct MOUSE_DEC mdec;
 	struct MEMMAN *memman = (struct MEMMAN *) MEMMAN_ADDR;
-	unsigned char *buf_back, buf_mouse[256], *buf_win, *buf_cons;
-	struct SHEET *sht_back, *sht_mouse, *sht_win, *sht_cons;
-	struct TASK *task_a, *task_cons;
+	unsigned char *buf_back, buf_mouse[256], *buf_win, *buf_cons[2];
+	struct SHEET *sht_back, *sht_mouse, *sht_win, *sht_cons[2];
+	struct TASK *task_a, *task_cons[2];
 	struct TIMER *timer;
 	static char keytable0[0x80] = {
 		0,   0,   '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '^', 0,   0,
@@ -78,23 +78,27 @@ void HariMain(void)
 	init_screen8(buf_back, binfo->scrnx, binfo->scrny);
 
 	/* sht_cons */
-	sht_cons = sheet_alloc(shtctl);
-	buf_cons = (unsigned char *) memman_alloc_4k(memman, 256 * 165);
-	sheet_setbuf(sht_cons, buf_cons, 256, 165, -1); /* 无透明色 */
-	make_window8(buf_cons, 256, 165, "console", 0);
-	make_textbox8(sht_cons, 8, 28, 240, 128, COL8_000000);
-	task_cons = task_alloc();
-	task_cons->tss.esp = memman_alloc_4k(memman, 64 * 1024) + 64 * 1024 - 12;
-	task_cons->tss.eip = (int) &console_task;
-	task_cons->tss.es = 1 * 8;
-	task_cons->tss.cs = 2 * 8;
-	task_cons->tss.ss = 1 * 8;
-	task_cons->tss.ds = 1 * 8;
-	task_cons->tss.fs = 1 * 8;
-	task_cons->tss.gs = 1 * 8;
-	*((int *) (task_cons->tss.esp + 4)) = (int) sht_cons;
-	*((int *) (task_cons->tss.esp + 8)) = memtotal;
-	task_run(task_cons, 2, 2); /* level=2, priority=2 */
+	for (i = 0; i < 2; i++) {
+		sht_cons[i] = sheet_alloc(shtctl);
+		buf_cons[i] = (unsigned char *) memman_alloc_4k(memman, 256 * 165);
+		sheet_setbuf(sht_cons[i], buf_cons[i], 256, 165, -1); /*没有透明色*/
+		make_window8(buf_cons[i], 256, 165, "console", 0);
+		make_textbox8(sht_cons[i], 8, 28, 240, 128, COL8_000000);
+		task_cons[i] = task_alloc();
+		task_cons[i]->tss.esp = memman_alloc_4k(memman, 64 * 1024) + 64 * 1024 - 12;
+		task_cons[i]->tss.eip = (int) &console_task;
+		task_cons[i]->tss.es = 1 * 8;
+		task_cons[i]->tss.cs = 2 * 8;
+		task_cons[i]->tss.ss = 1 * 8;
+		task_cons[i]->tss.ds = 1 * 8;
+		task_cons[i]->tss.fs = 1 * 8;
+		task_cons[i]->tss.gs = 1 * 8;
+		*((int *) (task_cons[i]->tss.esp + 4)) = (int) sht_cons[i];
+		*((int *) (task_cons[i]->tss.esp + 8)) = memtotal;
+		task_run(task_cons[i], 2, 2); /* level=2, priority=2 */
+		sht_cons[i]->task = task_cons[i];
+		sht_cons[i]->flags |= 0x20; /*有光标*/
+	}
 
 	/* sht_win */
 	sht_win   = sheet_alloc(shtctl);
@@ -116,16 +120,16 @@ void HariMain(void)
 	my = (binfo->scrny - 28 - 16) / 2;
 
 	sheet_slide(sht_back,  0,  0);
-	sheet_slide(sht_cons, 32,  4);
+	sheet_slide(sht_cons[1], 56, 6);
+	sheet_slide(sht_cons[0], 8, 2);
 	sheet_slide(sht_win,  64, 56);
 	sheet_slide(sht_mouse, mx, my);
 	sheet_updown(sht_back,  0);
-	sheet_updown(sht_cons,  1);
-	sheet_updown(sht_win,   2);
-	sheet_updown(sht_mouse, 3);
+	sheet_updown(sht_cons[1], 1);
+	sheet_updown(sht_cons[0], 2);
+	sheet_updown(sht_win, 3);
+	sheet_updown(sht_mouse, 4);
 	key_win = sht_win;
-	sht_cons->task = task_cons;
-	sht_cons->flags |= 0x20; /*有光标*/
 
 	/*为了避免和键盘当前状态冲突，在一开始先进行设置*/
 	fifo32_put(&keycmd, KEYCMD_LED);
@@ -228,12 +232,12 @@ void HariMain(void)
 					fifo32_put(&keycmd, KEYCMD_LED);
 					fifo32_put(&keycmd, key_leds);
 				}
-				if (i == 256 + 0x3b && key_shift != 0 && task_cons->tss.ss0 != 0) { /* Shift+F1 */
+				if (i == 256 + 0x3b && key_shift != 0 && task_cons[0]->tss.ss0 != 0) { /* Shift+F1 */
 					cons = (struct CONSOLE *) *((int *) 0x0fec);
 					cons_putstr0(cons, "\nBreak(key) :\n");
-					io_cli(); /*不能在改变寄存器值时切换到其他任务*/
-					task_cons->tss.eax = (int) &(task_cons->tss.esp0);
-					task_cons->tss.eip = (int) asm_end_app;
+					io_cli(); /*强制结束处理时禁止任务切换*/
+					task_cons[0]->tss.eax = (int) &(task_cons[0]->tss.esp0);
+					task_cons[0]->tss.eip = (int) asm_end_app;
 					io_sti();
 				}
 				if (i == 256 + 0x57 && shtctl->top > 2) { /* F11 */
@@ -297,9 +301,8 @@ void HariMain(void)
 												cons = (struct CONSOLE *) *((int *) 0x0fec);
 												cons_putstr0(cons, "\nBreak(mouse) :\n");
 												io_cli(); /*强制结束处理中禁止切换任务*/
-												task_cons->tss.eax = (int)
-												&(task_cons->tss.esp0);
-												task_cons->tss.eip = (int) asm_end_app;
+												task_cons[0]->tss.eax = (int) &(task_cons[0]->tss.esp0);
+												task_cons[0]->tss.eip = (int) asm_end_app;
 												io_sti();
 											}
 										}

25_day/bootpack.h

@@ -212,6 +212,8 @@ struct TASK {
 	int level, priority; /* 优先级 */
 	struct FIFO32 fifo;
 	struct TSS32 tss;
+	struct CONSOLE *cons;
+	int ds_base;
 };
 struct TASKLEVEL {
 	int running; /*正在运行的任务数量*/

25_day/console.c

@@ -16,7 +16,7 @@ void console_task(struct SHEET *sheet, unsigned int memtotal)
 	cons.cur_x = 8;
 	cons.cur_y = 28;
 	cons.cur_c = -1;
-	*((int *) 0x0fec) = (int) &cons;
+	task->cons = &cons;
 
 	fifo32_init(&task->fifo, 128, fifobuf, task);
 	timer = timer_alloc();
@@ -293,7 +293,7 @@ int cmd_app(struct CONSOLE *cons, int *fat, char *cmdline)
 			datsiz = *((int *) (p + 0x0010));
 			dathrb = *((int *) (p + 0x0014));
 			q = (char *) memman_alloc_4k(memman, segsiz);
-			*((int *) 0xfe8) = (int) q;
+			task->ds_base = (int) q;
 			set_segmdesc(gdt + 1003, finfo->size - 1, (int) p, AR_CODE32_ER + 0x60);
 			set_segmdesc(gdt + 1004, segsiz - 1,      (int) q, AR_DATA32_RW + 0x60);
 			for (i = 0; i < datsiz; i++) {
@@ -323,9 +323,9 @@ int cmd_app(struct CONSOLE *cons, int *fat, char *cmdline)
 
 int *hrb_api(int edi, int esi, int ebp, int esp, int ebx, int edx, int ecx, int eax)
 {
-	int ds_base = *((int *) 0xfe8);
 	struct TASK *task = task_now();
-	struct CONSOLE *cons = (struct CONSOLE *) *((int *) 0x0fec);
+	int ds_base = task->ds_base;
+	struct CONSOLE *cons = task->cons;
 	struct SHTCTL *shtctl = (struct SHTCTL *) *((int *) 0x0fe4);
 	struct SHEET *sht;
 	int *reg = &eax + 1; /* eax后面的地址*/
@@ -435,8 +435,8 @@ int *hrb_api(int edi, int esi, int ebp, int esp, int ebx, int edx, int ecx, int
 
 int *inthandler0c(int *esp)
 {
-	struct CONSOLE *cons = (struct CONSOLE *) *((int *) 0x0fec);
 	struct TASK *task = task_now();
+	struct CONSOLE *cons = task->cons;
 	char s[30];
 	cons_putstr0(cons, "\nINT 0C :\n Stack Exception.\n");
 	sprintf(s, "EIP = %08X\n", esp[11]);
@@ -446,8 +446,8 @@ int *inthandler0c(int *esp)
 
 int *inthandler0d(int *esp)
 {
-	struct CONSOLE *cons = (struct CONSOLE *) *((int *) 0x0fec);
 	struct TASK *task = task_now();
+	struct CONSOLE *cons = task->cons;
 	char s[30];
 	cons_putstr0(cons, "\nINT 0D :\n General Protected Exception.\n");
 	sprintf(s, "EIP = %08X\n", esp[11]);