Looking through the Jeltron code, I see usage being made of a few locations that I'm not familiar with (e.g. some of page 2 comes to mind, like &2E9, and there are other not well-known locations in other pages being used). While I know that the AUG gives some insight into the Beebs memory map, and for the most part, documents most of them fairly well, but it doesn't really give enough detail (at least to me!) to effectively use some of the more obscure locations .

So, are these nuggets of information documented someplace else in more detail than the AUG provides?

Back when we wrote Jeltron, we didn't need BASIC, so anything that was reserved for the language ROM or DFS was fair game and some of the OS too; after that, it was some disasembly and then trial and error.

If I ever see our notes from then, I will post up any useful bits.

In the meantime, try http://mdfs.net/Docs/Comp/BBC/AllMem