forum.defence-force.org

Twilighte wrote: ↑Mon Oct 09, 2006 9:33 pm
I finished the reformatting of the memory file, although a couple of areas are a bit strange. The mc appears to use a few BRK instructions

On the BBC micro they’re normally used to call a break handler.

So basically memory is as follows:-
BRK (first)
Fault number
Fault Message
Null terminator

I refer you to page 464 of the BBC micro user guide which describes how you use it. There is a potential gotcha though as the MOS (machine operating system) uses a vector at 0x202 for this which may have been appropriated.