Factorial in Piet

Example for versions npiet 1.2

This example was generated automatically. The original program translated into the image follows; it uses iterative factorial calculation. Note that values of 13! and larger are wrong due to overflow. 

main()
{
  f = 1;
  for ( i = 0; i <= 16; i++ )
  {
    __outn(i);
    asm{ @"! = " }
    __outn(f);
    __out(10);
    f = f * (i+1);
  }
}

Factorial in Piet (autogenerated)
Factorial in Piet (autogenerated)

Factorial in Piet (autogenerated, 4x scale)
Factorial in Piet (autogenerated, 4x scale)