CLANDESTINE COMMUNICATIONS
The following image is a close up of the last 3 letters in line 5, the GAR sequence. I have yet to properly document all of the letters and numbers, so for now, here are two images of that sequence, one is shown in the normal orientation whilst the other is inverted. That's because whoever wrote the microcode wrote from the top of the page down for image 1 and from the bottom of the page upwards for image 2.
1. INVERTED IMAGE
2. NORMAL VIEW
The arrow points to the join point where the flourish attaches to the lower part of the letter R. At that point there appears to be two letters A A with a letter X beneath them.