[comp.sys.atari.st] Spurious Interrupts

UUCJEFF@ECNCDC.BITNET (12/01/88)

I run programs in which I have an Xbtimer interrupt handler which outputs
MIDI data (by writing directly to the ACAI register, not TOS or XBIOS) along
with a revectored MIDI input routine.  Occasionaly 24 bombs drop across my
screen, indicating spurious interrupts.  Does anyone have experience in
clearing these up.   As far as I know, I have obeyed all the rules.
The errors do not occur if the Xbtimer runs and the MIDI sent to the ST.

I might try disabling the Xbtimer while there is MIDI input but who wants
to do that.

Jeff Beer, UUCJEFF@ECNCDC.BITNET