This semester (Fall 2023), Pulkit and I (Austin) are trying to introduce the LC-3 piece-by-piece, adding components as needed, rather than all at once.

My (Austin's) lectures are taught using printouts of aja/pdf/story-of-the-lc3-datapath.pdf. You can rebuild that PDF if you have Inkscape installed by running make in aja/.

It goes without saying that the images of the datapath in this repository are taken from Patt & Patel 3rd ed, specifically the diagram on page 174. At least in aja/, we've made a few changes: the MDR no longer mysteriously has two inputs; the confusing R.W label is drawn as a separate wire labeled MEM.RW; the INPUT and OUTPUT boxes are removed since we won't cover I/O until later; and the muxes for SR1 and DR are drawn explicitly instead of being magical.