> IRQ7 has always been connected to the printer port. The interrupt
> controller handles it just like all the other PWB traces going
> to it. It is not an "unknown" interrupt.
IRQ7 is also raised to indicate a spurious interrupt (ie nobody owning up
to having requested it). That is one reason its used for the parallel port
on a PC - the odd extra irq does no harm
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This archive was generated by hypermail 2b29 : Tue Feb 15 2000 - 21:00:26 EST