diff --git a/04_day/bootpack.c b/04_day/bootpack.c
index 29d75b8..bd835c8 100644
--- a/04_day/bootpack.c
+++ b/04_day/bootpack.c
@@ -27,16 +27,31 @@ void boxfill8(unsigned char *vram, int xsize, unsigned char c, int x0, int y0, i
 
 void HariMain(void)
 {
-	char *p; /* 声明变量p、用于BYTE [...]地址 */
+	char *vram;/* 声明变量vram、用于BYTE [...]地址 */
+	int xsize, ysize;
 
-	init_palette(); /* 设定调色板 */
+	init_palette();/* 设定调色板 */
+	vram = (char *) 0xa0000;/* 地址变量赋值 */
+	xsize = 320;
+	ysize = 200;
 
-	p = (char *) 0xa0000; /* 地址变量赋值 */
-	
 	/* 根据 0xa0000 + x + y * 320 计算坐标 8*/
-	boxfill8(p, 320, COL8_FF0000,  20,  20, 120, 120);
-	boxfill8(p, 320, COL8_00FF00,  70,  50, 170, 150);
-	boxfill8(p, 320, COL8_0000FF, 120,  80, 220, 180);
+	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_hlt();