键盘输入API

23_day/a_nask.nas

@@ -16,6 +16,7 @@
 		GLOBAL	_api_refreshwin
 		GLOBAL	_api_linewin
 		GLOBAL	_api_closewin
+		GLOBAL	_api_getkey
 
 [SECTION .text]
 
@@ -179,3 +180,9 @@ _api_closewin:		; void api_closewin(int win);
 		INT		0x40
 		POP		EBX
 		RET
+
+_api_getkey:		; int api_getkey(int mode);
+		MOV		EDX,15
+		MOV		EAX,[ESP+4]	; mode
+		INT		0x40
+		RET

23_day/bootpack.h

@@ -237,6 +237,7 @@ void make_wtitle8(unsigned char *buf, int xsize, char *title, char act);
 struct CONSOLE {
 	struct SHEET *sht;
 	int cur_x, cur_y, cur_c;
+	struct TIMER *timer;
 };
 void console_task(struct SHEET *sheet, unsigned int memtotal);
 void cons_putchar(struct CONSOLE *cons, int chr, char move);

23_day/console.c

@@ -321,6 +321,8 @@ int *hrb_api(int edi, int esi, int ebp, int esp, int ebx, int edx, int ecx, int
 	/*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;
+
 	if (edx == 1) {
 		cons_putchar(cons, eax & 0xff, 1);
 	} else if (edx == 2) {
@@ -375,6 +377,36 @@ int *hrb_api(int edi, int esi, int ebp, int esp, int ebx, int edx, int ecx, int
 		}
 	} else if (edx == 14) {
 		sheet_free((struct SHEET *) ebx);
+	} else if (edx == 15) {
+		for (;;) {
+			io_cli();
+			if (fifo32_status(&task->fifo) == 0) {
+				if (eax != 0) {
+					task_sleep(task); /* FIFO为空，休眠并等待*/
+				} else {
+					io_sti();
+					reg[7] = -1;
+					return 0;
+				}
+			}
+			i = fifo32_get(&task->fifo);
+			io_sti();
+			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) { /*光标ON */
+				cons->cur_c = COL8_FFFFFF;
+			}
+			if (i == 3) { /*光标OFF */
+				cons->cur_c = -1;
+			}
+			if (256 <= i && i <= 511) { /*键盘数据（通过任务A）*/
+				reg[7] = i - 256;
+				return 0;
+			}
+		}
 	}
 	return 0;
 }

23_day/lines.c

@@ -4,6 +4,7 @@ char *api_malloc(int size);
 void api_refreshwin(int win, int x0, int y0, int x1, int y1);
 void api_linewin(int win, int x0, int y0, int x1, int y1, int col);
 void api_closewin(int win);
+int api_getkey(int mode);
 void api_end(void);
 
 void HariMain(void)
@@ -18,6 +19,11 @@ void HariMain(void)
 		api_linewin(win + 1, 88, 26, i * 9 + 88, 89, i);
 	}
 	api_refreshwin(win,  6, 26, 154, 90);
+	for (;;) {
+		if (api_getkey(1) == 0x0a) {
+			break; /*按下回车键则break; */
+		}
+	}
 	api_closewin(win);
 	api_end();
 }