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#define X 64
#define Y 64
void _start(unsigned short x, unsigned short y)
{
volatile unsigned long *counter = (unsigned long *)((1ULL << 48) | (1ULL << 32));
volatile char *uart = (char *)4096;
/* very hacky, not recommended but good enough for testing */
if (x == 0 && y == 1) {
*counter = 0;
*uart = '0';
*uart = '\n';
}
else
while (*counter != ((x << 8) | y))
;
*uart = '(';
/* [0 - 63] as two octal numbers */
*uart = ((x >> 3) & 0x7) + '0';
*uart = ((x >> 0) & 0x7) + '0';
*uart = ',';
*uart = ' ';
*uart = ((y >> 3) & 0x7) + '0';
*uart = ((y >> 0) & 0x7) + '0';
*uart = ')';
*uart = '\n';
if (y == 63) {
x++;
y = 0;
}
else
y++;
*counter = (x << 8) | y;
while (*counter != (64 << 8))
;
asm ("ebreak\n");
}
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