Log#71 : Progress with the SHL unit

A project log for YASEP News archives

A backup of the blog before the host erases it. A good opportunity to review the development, twists and turns of this ISA !

yann-guidon-ygdesYann Guidon / YGDES 04/12/2020 at 00:490 Comments

By whygee on Saturday 28 November 2015, 23:57 - Architecture

Work continues on the discrete YASEP, with frequent log posts on

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

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 :-)


By 2015 my development process shifted to the platform and more tinkering occured here. A bit later, critical YASEP development files were lost in a HDD crash and I didn't have the force to rescue and resume the project.

This series of logs keep essential traces of design decisions that will help to reboot the project.