Tape Drives and FOCAL "problem"

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We decided to run some tests with the top tape drive to see how well it works. (Warren brought some almost never used tapes that we used for this). We ran the tape formatting program, Mark12. It failed the first time, but the program maybe didn't send correctly, so we sent it again. It worked! The tape was properly formated for LINCtape. See video below.

We ran some diagnostics for the TU55 and they ran fine. We will start tracking down the problem with the second tape drive.

Warren ran FOCAL in the PDP-8 simulator on simh. It turns out that when he ran the same code in the simulator it also ran an extra time, 101 or 1001. It turns out that the code wasn't exactly right. After it runs for the set number of times, it runs one extra time as it goes back through the code. Adding another line that tells it to stop fixed this. So, FOCAL does work!

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