Using $Debug

[PhilOfPerth]

Fellippes links keep disappearing, maybe this from Terry Ritchie still works:
https://drive.usercontent.google.com/dow...authuser=0

Fellippe's stuff about Debug, 199M Download too large for google to scan.

The link in OP is gone from here: https://qb64phoenix.com/forum/showthread.php?tid=2380

Thanks bplus.
Got that. It's very clearly presented; and I'll study it a bit more later. But meantime. I've been advised the Wiki covers it, and I've found that this is a clearer (but briefer)  explanation, and I'll go through that first. 
Now, I have some study to catch up on.

---

There's always our Wiki,

https://qb64phoenix.com/qb64wiki/index.php/$DEBUG

at the bottom of that page in the "See Also" section you also find a link to Fellippes Video.

Thanks RhoSigma. That page has all the info I need. I'll go through that today.