> This is of course not a new invention No, this is a well known construct in digital design. Basically, for a 2^N deep queue you only need two N+1 bit variabl

> This is of course not a new invention No, this is a well known construct in digital design. Basically, for a 2^N deep queue you only need two N+1 bit variables: http://www.sunburst-design.com/papers/CummingsSNUG2002SJ_FIFO1.pdf http://www.sunburst-design.com/papers/CummingsSNUG2002SJ_FIF...