使用头文件

06_day/bootpack.h

@@ -0,0 +1,69 @@
+/* asmhead.nas */
+struct BOOTINFO { /* 0x0ff0-0x0fff */
+	char cyls; /* 启动区读磁盘读到此为止 */
+	char leds; /* 启动时键盘的LED的状态 */
+	char vmode; /* 显卡模式为多少位彩色 */
+	char reserve;
+	short scrnx, scrny; /* 画面分辨率 */
+	char *vram;
+};
+#define ADR_BOOTINFO	0x00000ff0
+
+/* naskfunc.nas */
+void io_hlt(void);
+void io_cli(void);
+void io_out8(int port, int data);
+int io_load_eflags(void);
+void io_store_eflags(int eflags);
+void load_gdtr(int limit, int addr);
+void load_idtr(int limit, int addr);
+
+/* graphic.c */
+void init_palette(void);
+void set_palette(int start, int end, unsigned char *rgb);
+void boxfill8(unsigned char *vram, int xsize, unsigned char c, int x0, int y0, int x1, int y1);
+void init_screen8(char *vram, int x, int y);
+void putfont8(char *vram, int xsize, int x, int y, char c, char *font);
+void putfonts8_asc(char *vram, int xsize, int x, int y, char c, unsigned char *s);
+void init_mouse_cursor8(char *mouse, char bc);
+void putblock8_8(char *vram, int vxsize, int pxsize,
+	int pysize, int px0, int py0, char *buf, int bxsize);
+#define COL8_000000		0
+#define COL8_FF0000		1
+#define COL8_00FF00		2
+#define COL8_FFFF00		3
+#define COL8_0000FF		4
+#define COL8_FF00FF		5
+#define COL8_00FFFF		6
+#define COL8_FFFFFF		7
+#define COL8_C6C6C6		8
+#define COL8_840000		9
+#define COL8_008400		10
+#define COL8_848400		11
+#define COL8_000084		12
+#define COL8_840084		13
+#define COL8_008484		14
+#define COL8_848484		15
+
+/* dsctbl.c */
+struct SEGMENT_DESCRIPTOR {
+	short limit_low, base_low;
+	char base_mid, access_right;
+	char limit_high, base_high;
+};
+struct GATE_DESCRIPTOR {
+	short offset_low, selector;
+	char dw_count, access_right;
+	short offset_high;
+};
+void init_gdtidt(void);
+void set_segmdesc(struct SEGMENT_DESCRIPTOR *sd, unsigned int limit, int base, int ar);
+void set_gatedesc(struct GATE_DESCRIPTOR *gd, int offset, int selector, int ar);
+#define ADR_IDT			0x0026f800
+#define LIMIT_IDT		0x000007ff
+#define ADR_GDT			0x00270000
+#define LIMIT_GDT		0x0000ffff
+#define ADR_BOTPAK		0x00280000
+#define LIMIT_BOTPAK	0x0007ffff
+#define AR_DATA32_RW	0x4092
+#define AR_CODE32_ER	0x409a