next interruption occurs on the specified device. The format of the
r ---,
d evicen specifies the device(s) to be waited for.
following may be specified:
symn indicates the symbolic device name and number, where:
sym is
n indicates a device number.
user is a four-character symbolic name specified a HNDINT
macro issued for the same device.
ERROR=erraddr
specifies the address of an error routine to be given control
if an error is found. If ERROR= is not coded and an error
occurs, control
the calling program, as it does if no error occurs.
1.
from a device specified in the
interruption is processed before program execution continues.
2.
6
returned to the caller with the name of the interrupting device in
register 1.
3. If an HNDINT macro instruction issued for the same device specified
the wait condition is satisfied.
4. If an HNDINT macro instruction issued for the same device specified
interruption handling routine is given control.
5.
considered processed or if more interruptions are necessary
satisfy the wait condition. For additional information see
discussion of the HNDINT macro instruction.
is
to
the
When an error is detected, register 15 contains a 1 to indicate that an
invalid device number was specified.
Section 6.