同时显示ascii和gb2312，也许能行吧，没有试验很多，但愿一切正常！
void myhlt(void);
void fillbox(int color, int x0, int y0, int x1, int y1);
void myfillbox(int color, int x0, int y0, int x1, int y1);
void makefont16 (int color, int x, int y, short *font);
void print_gb2312(int color, int x, int y, unsigned char *str);
int mymain(int eax, int ebx) {
int *myfb = (int *)0xe0000000;
fillbox(0x001e90ff, 0, 0, 799, 599);
myfillbox(0x00000000, 0, 0, 799, 599);
unsigned char str0[] = "系统的名字叫做什么呢，暂定为SnailOS吧，真的佩服自己的速度，像蜗牛爬树！";
print_gb2312(0xffffffff, 80 , 0, str0);
unsigned char str1[] = "我的系统开始可以打印中文了，不过还不能换行，屏幕也是越界的，好在还是正确的显示了！";
print_gb2312(0xffffffff, 80, 80, str1);
unsigned char str2[] = "蜗牛（Ｓｎｉａｌ）";
print_gb2312(0xffffffff, 80 , 96, str2);
unsigned char str3[] = "该不该搁下重重的壳";
print_gb2312(0xffffffff, 80 , 112, str3);
unsigned char str4[] = "寻找到底哪里有蓝天";
print_gb2312(0xffffffff, 80 , 128, str4);
unsigned char str5[] = "随着轻轻的风轻轻的飘";
print_gb2312(0xffffffff, 80 , 144, str5);
unsigned char str6[] = "历经的伤都不感觉疼";
print_gb2312(0xffffffff, 80 , 160, str6);
unsigned char str7[] = "我要一步一步往上爬";
print_gb2312(0xffffffff, 80 , 176, str7);
unsigned char str8[] = "等待阳光静静看着它的脸";
print_gb2312(0xffffffff, 80 , 192, str8);
unsigned char str9[] = "小小的天有大大的梦想";
print_gb2312(0xffffffff, 80 , 208, str9);
unsigned char str10[] = "重重的壳裹着轻轻的仰望";
print_gb2312(0xffffffff, 80 , 224, str10);
unsigned char str11[] = "我要一步一步往上爬";
print_gb2312(0xffffffff, 80 , 240, str11);
unsigned char str12[] = "在最高点乘着叶片往前飞";
print_gb2312(0xffffffff, 80 , 256, str12);
unsigned char str13[] = "让风吹干流过的泪和汗";
print_gb2312(0xffffffff, 80 , 272, str13);
unsigned char str14[] = "总有一天我有属于我的天";
print_gb2312(0xffffffff, 80 , 288, str14);
unsigned char str15[] = "我a的b梦想是c成为一个d梦想家e蜗牛先生f算了吧，g你你你你h";
print_gb2312(0xffffffff, 80 , 304, str15);
unsigned char str16[] = "aaa好梦成真，蜗牛先生,happy every day,哦，也许能打印ascii了";
print_gb2312(0xffffffff, 80 , 320, str16);
unsigned char str17[] = "HELLO, world$~！@##￥%…………&）（*_*)))))。。。^_^^_^";
print_gb2312(0xffffffff, 80 , 336, str17);
while(1) {
myhlt();
}
}
void myprintf(char *str) {
}
void fillbox(int color, int x0, int y0, int x1, int y1) {
int *myfb = (int *)0xe0000000;
int xsize = 800;
int x, y;
for (y = 0; y <= y1 - y0; y++) {
for (x = 0; x <= x1 - x0; x++) {
myfb[x0 + x + (y0 + y) * xsize] = color;
}
}
}
void myfillbox(int color, int x0, int y0, int x1, int y1) {
int *myfb = (int *)0xe0000000;
int xsize = 800;
int x, y;
if (x0 < 80 || y0 < 80 || x1 > 719 || y1 > 519) {
x0 = 80;
y0 = 80;
x1 = 719;
y1 = 519;
}
for (y = 0; y <= y1 - y0; y++) {
for (x = 0; x <= x1 - x0; x++) {
myfb[x0 + x + (y0 + y) * xsize] = color;
}
}
}
void print_ascii (int color, int x, int y, char *font) {
int *myfb = (int *)0xe0000000;
int xsize = 800;
char d;
int *p;
int i;
for (i = 0; i < 16; i++){
p = myfb + (y + i) * xsize + x;
d = font[i];
if ((d & 0x80) != 0) {p[0] = color;}
if ((d & 0x40) != 0) {p[1] = color;}
if ((d & 0x20) != 0) {p[2] = color;}
if ((d & 0x10) != 0) {p[3] = color;}
if ((d & 0x08) != 0) {p[4] = color;}
if ((d & 0x04) != 0) {p[5] = color;}
if ((d & 0x02) != 0) {p[6] = color;}
if ((d & 0x01) != 0) {p[7] = color;}
}
return;
}
void makefont16 (int color, int x, int y, short *font) {
int *myfb = (int *)0xe0000000;
int xsize = 800;
short d;
int *p;
int i;
for (i = 0; i < 16; i++){
p = myfb + (y + i) * xsize + x;
d = font[i];
if ((d & 0x80) != 0) {p[0] = color;}
if ((d & 0x40) != 0) {p[1] = color;}
if ((d & 0x20) != 0) {p[2] = color;}
if ((d & 0x10) != 0) {p[3] = color;}
if ((d & 0x08) != 0) {p[4] = color;}
if ((d & 0x04) != 0) {p[5] = color;}
if ((d & 0x02) != 0) {p[6] = color;}
if ((d & 0x01) != 0) {p[7] = color;}
if ((d & 0x8000) != 0) {p[8] = color;}
if ((d & 0x4000) != 0) {p[9] = color;}
if ((d & 0x2000) != 0) {p[10] = color;}
if ((d & 0x1000) != 0) {p[11] = color;}
if ((d & 0x800) != 0) {p[12] = color;}
if ((d & 0x400) != 0) {p[13] = color;}
if ((d & 0x200) != 0) {p[14] = color;}
if ((d & 0x100) != 0) {p[15] = color;}
}
return;
}
void print_gb2312(int color, int x, int y, unsigned char *str) {
extern short font[0x8000];
extern char myfont[0x1000];
int i = 0, j = 0;
unsigned char a, b;
unsigned int offset;
while (str[i] != 0) {
if (str[i] < 0x80) {
a = str[i];
print_ascii (color, x + j, y, myfont + a * 16);
if (str[i + 1] == 0)
break;
i++;
j += 8;
} else {
a = str[i] - 0xa0;
b = str[i + 1] - 0xa0;
offset = ((a - 1) * 94 + (b - 1)) * 16;
makefont16 (color, x + j , y, font + offset);
i += 2;
j += 16;
}
}
return;
}