30天自制操作系统-day9

30天自制操作系统-day9

这次我们更改main.c以及相关文件，生成任务栏，只需修改main.c如下
main.c

#include<header.h>
void bootmain(void){
	//注意这里的函数名字为bootmain，因为在entry.S中设定的入口名字也是bootmain，两者要保持一致
	int i, xsize, ysize;
	char *vram;
	init_palette();

	clear_screen(15);	//由于一进来这里显示的是"my kernel is running"等字符串，这里刷屏为灰色，去除字符串

	vram=(char*)0xa0000;
	xsize=320;
	ysize=200;

	boxfill8(vram, xsize, COL8_008484, 0, 0, xsize-1, ysize-29);
	boxfill8(vram, xsize, COL8_C6C6C6, 0, ysize-28, xsize-1, ysize-28);
	boxfill8(vram, xsize, COL8_FFFFFF, 0, ysize-27, xsize-1, ysize-27);
	boxfill8(vram, xsize, COL8_C6C6C6, 0, ysize-26, xsize-1, ysize-1);

	boxfill8(vram, xsize, COL8_FFFFFF, 3, ysize-24, 59, ysize-24);
	boxfill8(vram, xsize, COL8_FFFFFF, 2, ysize-24, 2, ysize-4);
	boxfill8(vram, xsize, COL8_848484, 3, ysize-4, 59, ysize-4);
	boxfill8(vram, xsize, COL8_848484, 59, ysize-23, 59, ysize-5);
	boxfill8(vram, xsize, COL8_000000, 2, ysize-3, 59, ysize-3);
	boxfill8(vram, xsize, COL8_000000, 60, ysize-24, 60, ysize-3);

	boxfill8(vram, xsize, COL8_848484, xsize-47, ysize-24, xsize-4, ysize-24);
	boxfill8(vram, xsize, COL8_848484, xsize-47, ysize-23, xsize-47, ysize-4);
	boxfill8(vram, xsize, COL8_FFFFFF, xsize-47, ysize-3, xsize-4, ysize-3);
	boxfill8(vram, xsize, COL8_FFFFFF, xsize-3, ysize-24, xsize-3, ysize-3);

	for(;;){
		io_halt();
	}
}

header.h

.................
.................
#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

效果如下：

源码链接：https://github.com/zchrissirhcz/osask-linux.git