// https://archive.org/details/HAKMEM/page/n73/mode/1up
// articles 149-152
#include <TVout.h>
TVout TV;
void setup() {
TV.begin(PAL);
}
void loop() {
static int16_t x = 32 << 8, y;
x -= y >> 7;
y += x >> 7;
TV.set_pixel(64 + (x >> 8), 48 + (y >> 8), 1);
}