Work continues on the discrete YASEP, with frequent log posts on hackaday.io.

In one post, the SHL group's instructions have been reordered :

  • 0 : SHR
  • 1 : SHRO
  • 2 : ROR
  • 3 : SAR
  • 4 : SHL
  • 5 : SHLO
  • 6 : ROL
  • 7 : BSWAP

Then the structure of the SHL unit has been refined and a detailed diagram is drawn:

There is still some room for extra features and the I/E unit (Insert/Extract) might benefit from the unused inputs of the last MUX4 layer :-)