今天终于画出了A,值得庆幸的一天吧
呵呵 晒晒图显摆显摆
下面是加入的代码:
void putfont8 (int * vram, int xsize, int x, int y, int c, char * font) {
int i;
int *p;
char d;
for (i = 0; i < 16; i++) {
d = font[i];
p = vram + (y + i) * xsize + x;
if ((d & 0x80) != 0) {*(p + 0) = c;}
if ((d & 0x40) != 0) {*(p + 1) = c;}
if ((d & 0x20) != 0) {*(p + 2) = c;}
if ((d & 0x10) != 0) {*(p + 3) = c;}
if ((d & 0x08) != 0) {*(p + 4) = c;}
if ((d & 0x04) != 0) {*(p + 5) = c;}
if ((d & 0x02) != 0) {*(p + 6) = c;}
if ((d & 0x01) != 0) {*(p + 7) = c;}
}
return;
}
在主函数中加入如下语句:
putfont8 (fb, 1024, 30, 30, 0x000000, font_A);
数组font_A的定义:
static char font_A[16] = {
0x00, 0x18, 0x18, 0x18, 0x18, 0x24, 0x24, 0x24,
0x24, 0x7e, 0x42, 0x42, 0x42, 0xe7, 0x00, 0x00
};
以上这些多是参考川合秀实先生《30天自制操作系统》