void display_board(board *b)
{
int x, y;
if (alt_video_page) {
outpage(2);
} else {
outpage(4);
}
textcolour(7);
clearscr();
movecur(30, 7);
os_long_int_to_string(&score, 10, conv_buffer);
strout("Score: ");
strout(conv_buffer);
for (y = 0; y < brd_h; y++) {
movecur(30, y * 2 + 8);
strout(seperator);
movecur(30, y * 2 + 9);
for (x = 0; x < brd_w; x++) {
charout('|');
if ((*b)[y][x] < 10000) charout(' ');
if ((*b)[y][x] < 1000) charout(' ');
if ((*b)[y][x] < 100) charout(' ');
if ((*b)[y][x] < 10) charout(' ');
if ((*b)[y][x] == 0) {
charout(' ');
} else {
strout(os_int_to_string((*b)[y][x]));
}
}
charout('|');
}
movecur(30, 16);
strout(seperator);
if (alt_video_page) {
viewpage(2);
alt_video_page = 0;
} else {
viewpage(4);
alt_video_page = 1;
}
}
int printf(char *fmt, ...)
{
int i = 0;
int printed = 0;
char *arg = (char*)&fmt + sizeof(char*);
char *str;
if (fmt[0] == '\0') {
return 0;
}
do {
if (fmt[i] == '\n') {
os_print_newline();
printed += 2;
continue;
} else if (fmt[i] != '%') {
os_print_char(fmt[i]);
printed++;
continue;
}
switch (fmt[++i]) {
case 'd':
case 'i':
str = os_sint_to_string(*(int*)arg);
printed += os_string_length(str);
os_print_string(str);
arg += sizeof(int);
break;
case 'u':
str = os_int_to_string(*(int*)arg);
printed += os_string_length(str);
os_print_string(str);
arg += sizeof(int);
break;
case 'x':
case 'X':
os_print_4hex(*(int*)arg);
printed += 4;
arg += sizeof(int);
break;
case 'c':
os_print_char(*arg);
printed++;
arg += sizeof(int);
break;
case 's':
str = *(char**)arg;
printed += os_string_length(str);
os_print_string(str);
arg += sizeof(char*);
break;
case 'p':
os_print_string("0x");
os_print_4hex(*(int*)arg);
printed += 6;
arg += sizeof(int);
break;
case 'n':
*(int*)arg = printed;
arg += sizeof(int*);
break;
case '%':
os_print_char('%');
printed++;
break;
}
} while (fmt[++i]);
return printed;
}
