第一个应用程序

19_day/Makefile

@@ -46,7 +46,10 @@ bootpack.bim : $(OBJS_BOOTPACK) Makefile
 bootpack.hrb : bootpack.bim Makefile
 	$(BIM2HRB) bootpack.bim bootpack.hrb 0
 
-haribote.sys : asmhead.bin bootpack.hrb Makefile
+hlt.hrb : hlt.nas Makefile
+	$(NASK) hlt.nas hlt.hrb hlt.lst
+
+haribote.sys : asmhead.bin bootpack.hrb hlt.hrb Makefile
 	copy /B asmhead.bin+bootpack.hrb haribote.sys
 
 haribote.img : ipl10.bin haribote.sys Makefile
@@ -55,6 +58,7 @@ haribote.img : ipl10.bin haribote.sys Makefile
 		copy from:haribote.sys to:@: \
 		copy from:ipl10.nas to:@: \
 		copy from:make.bat to:@: \
+		copy from:hlt.hrb to:@: \
 		imgout:haribote.img
 
 # 其他指令

19_day/console.c

@@ -4,28 +4,6 @@
 #include <stdio.h>
 #include <string.h>
 
-int cons_newline(int cursor_y, struct SHEET *sheet)
-{
-	int x, y;
-	if (cursor_y < 28 + 112) {
-		cursor_y += 16; /*换行*/
-	} else {
-		/*滚动*/
-		for (y = 28; y < 28 + 112; y++) {
-			for (x = 8; x < 8 + 240; x++) {
-				sheet->buf[x + y * sheet->bxsize] = sheet->buf[x + (y + 16) * sheet->bxsize];
-			}
-		}
-		for (y = 28 + 112; y < 28 + 128; y++) {
-			for (x = 8; x < 8 + 240; x++) {
-				sheet->buf[x + y * sheet->bxsize] = COL8_000000;
-			}
-		}
-		sheet_refresh(sheet, 8, 28, 8 + 240, 28 + 128);
-	}
-	return cursor_y;
-}
-
 void console_task(struct SHEET *sheet, unsigned int memtotal)
 {
 	struct TIMER *timer;
@@ -36,6 +14,7 @@ void console_task(struct SHEET *sheet, unsigned int memtotal)
 	int x, y;
 	struct FILEINFO *finfo = (struct FILEINFO *) (ADR_DISKIMG + 0x002600);
 	int *fat = (int *) memman_alloc_4k(memman, 4 * 2880);
+	struct SEGMENT_DESCRIPTOR *gdt = (struct SEGMENT_DESCRIPTOR *) ADR_GDT;
 
 	fifo32_init(&task->fifo, 128, fifobuf, task);
 	timer = timer_alloc();
@@ -207,6 +186,45 @@ void console_task(struct SHEET *sheet, unsigned int memtotal)
 						cursor_y = cons_newline(cursor_y, sheet);
 					}
 						cursor_y = cons_newline(cursor_y, sheet);
+				}	else if (strcmp(cmdline, "hlt") == 0) {
+					/*启动应用程序hlt.hrb */
+					for (y = 0; y < 11; y++) {
+						s[y] = ' ';
+					}
+					s[0] = 'H';
+					s[1] = 'L';
+					s[2] = 'T';
+					s[8] = 'H';
+					s[9] = 'R';
+					s[10] = 'B';
+					for (x = 0; x < 224; ) {
+						if (finfo[x].name[0] == 0x00) {
+							break;
+						}
+						if ((finfo[x].type & 0x18) == 0) {
+							for (y = 0; y < 11; y++) {
+								if (finfo[x].name[y] != s[y]) {
+									goto hlt_next_file;
+								}
+							}
+							break; /*找到文件*/
+						}
+						hlt_next_file:
+							x++;
+					}
+					if (x < 224 && finfo[x].name[0] != 0x00) {
+						/*找到文件的情况*/
+						p = (char *) memman_alloc_4k(memman, finfo[x].size);
+						file_loadfile(finfo[x].clustno, finfo[x].size, p, fat, (char *) (ADR_DISKIMG + 0x003e00));
+						set_segmdesc(gdt + 1003, finfo[x].size - 1, (int) p, AR_CODE32_ER);
+						farjmp(0, 1003 * 8);
+						memman_free_4k(memman, (int) p, finfo[x].size);
+					} else {
+						/*没有找到文件的情况*/
+						putfonts8_asc_sht(sheet, 8, cursor_y, COL8_FFFFFF, COL8_000000, "File not found.", 15);
+						cursor_y = cons_newline(cursor_y, sheet);
+					}
+					cursor_y = cons_newline(cursor_y, sheet);
 				}	else if (cmdline[0] != 0) {
 						/*不是命令，也不是空行 */
 						putfonts8_asc_sht(sheet, 8, cursor_y, COL8_FFFFFF, COL8_000000, "Bad command.", 12);
@@ -236,3 +254,25 @@ void console_task(struct SHEET *sheet, unsigned int memtotal)
 		}
 	}
 }
+
+int cons_newline(int cursor_y, struct SHEET *sheet)
+{
+	int x, y;
+	if (cursor_y < 28 + 112) {
+		cursor_y += 16; /*换行*/
+	} else {
+		/*滚动*/
+		for (y = 28; y < 28 + 112; y++) {
+			for (x = 8; x < 8 + 240; x++) {
+				sheet->buf[x + y * sheet->bxsize] = sheet->buf[x + (y + 16) * sheet->bxsize];
+			}
+		}
+		for (y = 28 + 112; y < 28 + 128; y++) {
+			for (x = 8; x < 8 + 240; x++) {
+				sheet->buf[x + y * sheet->bxsize] = COL8_000000;
+			}
+		}
+		sheet_refresh(sheet, 8, 28, 8 + 240, 28 + 128);
+	}
+	return cursor_y;
+}

19_day/hlt.nas

@@ -0,0 +1,5 @@
+[BITS 32]
+		CLI
+fin:
+		HLT
+		JMP		fin