
21 Aug
2009
21 Aug
'09
3:08 p.m.
Why should it? I presume the CPU starts at _start, so it will "b reset", i.e. branch (jump) to "reset" and be happy. Its only if the CPU jumps to one the reserved vectors that it will loop. And well, as they are reserved, this is a legal thing to do, no? As the purple port works, I'm pretty sure they do not usually get jumped to there ;)
I knew I must be missing something, I didn't see that the reset definition comes straight under all the other vector calls, so _start just runs through all the vectors if for some reason reset returns (twice) and would get trapped because of RVECENT(romReserved,2).
I shouldn't have missed my morning coffee :-P thank you for your help.
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Regards,
Peter Belm