NAME
	AbortIO -- Remove an existing timer request.

   SYNOPSIS
	error = AbortIO( timerequest )
	D0               A1

	LONG AbortIO( struct timerequest * );

   FUNCTION
	This is an exec.library call.

	This routine removes a timerquest from the timer.  It runs in
	the context of the caller.

   INPUTS
	timerequest - the timer request to be aborted

   RETURNS
	0  if the request was aborted, io_Error will also be set to
	    IOERR_ABORTED.
	-1 otherwise

   NOTES
	This function may be called from interrupts.

   SEE ALSO
	exec.library/AbortIO()

   BUGS