Logic board: add 4 buffers (need 3 for ALU), and remove 3 tinv's to save space.
treecac0c41afff5661ca4b97f7002fa6a22fec798b2
-rwxr-xr-x 32 .gitignore
-rwxr-xr-x 613376 2008 Spring-Summer Schedule.mpp
drwxr-xr-x - asm
drwxr-xr-x - bb
drwxr-xr-x - circuits
drwxr-xr-x - digital_simulator
drwxr-xr-x - tools