Another "forest for the trees" thing again!

REG GPIO - BIT 5 Got it! Thanks.

The value in the last memory location shows up in the calibration section of the memory read. The value was still there (3438). The OSCAL define fell out of the program as I played with the code. Debug works now.

Stepping back a bit, when I first started playing with the 12f629 I thought I had damaged two chips. They would work and then stop. Resetting would sometimes get them going. At one point they both seemed dead. Now, I read them out and find no calibration value. I have the "calibration program" option unchecked, so I don't know how they got wiped out. I tried OSCAL $80 and the chip came to life. It looks to be running about 40% faster than it should. Because of this, Debug stopped working with this chip.

So.....

It seems that the calibration value is more than just a tweak. Loose it and you stop. Yes?
The rest of my 12f629's have the same value (3438) in the last location. Can I write to that location and restore the chip, or can I find an OSCAL value that comes close? Is that what OSCAL $80 does?