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csclub> dda demo

'cycles' per instruction


      let r = 4;
let r2 = r + r;

let {x, y} = {r, 0};
let {dy, dx} = {-2, r2 + r2 - 4};

let d = r2 - 1;

for y <= x {
  set_pixel(-y, -x);
  set_pixel(y, -x);
  set_pixel(y, x);
  set_pixel(-y, x);
  set_pixel(-x, -y);
  set_pixel(x, -y);
  set_pixel(x, y);
  set_pixel(-x, y);

  d = d + dy;
  dy = dy - 4;
  y++;

  if d < 0 {
    d = d + dx;
    dx = dx - 4;
    x--;
  }
}
      
      
        code


      
      
      
        assembly