Bus Error

Dolf Grunbauer dolf at idca.tds.PHILIPS.nl
Fri Mar 16 23:59:02 AEST 1990


In article <1990Mar16.083052.20554 at diku.dk> jensting at skinfaxe.diku.dk (Jens Tingleff) writes:
}zech at leadsv.UUCP (Bill Zech) writes (at least I think he wrote it, ed. Dolf):
}
}>In the Motorola 68xxx series chips, a Bus Error is the result of some
}
}Or, of course, trying to fetch a long value from an address thats odd.. .
}

No, that's an Address Error. The stack frame looks like a Bus Error, but it
is a different exception. Note that the MC680[234]0 allow fetching (long)
word data accesses on odd byte boundaries. Instructions and stackpointer must
be on word boundaries.
-- 
Dolf Grunbauer          Tel: +31 55 433233  Internet dolf at idca.tds.philips.nl
Philips Telecommunication and Data Systems  UUCP ....!mcsun!philapd!dolf
Dept. SSP, P.O. Box 245, 7300 AE Apeldoorn, The Netherlands         n   n   n
It's a pity my .signature is too small to show you my solution of  a + b = c



More information about the Comp.lang.c mailing list