Appeal No. 95-1544
Application 08/003,602
of operations to be performed by the special section of code will
be completed without interruption by a page fault because all
memory references are assigned storage at one time.
While Yamaguchi discloses an instruction restart
procedure for restarting an instruction after a page fault
process, in this regard, Yamaguchi appears to disclose nothing
more than the typical prior art procedure of first determining
that a fault has occurred, then retrieving the unavailable memory
reference from secondary storage and restarting the procedure at
some point. This is in contrast to the instant claims which
require that the operations carried out by the special section of
code be undone, or erased, prior to the retrieval of the
unavailable memory reference. Such a step permits the result
recited in the claim preambles that the "special section of code
performs a series of operations that must all be completed
without interruption..." In Yamaguchi, the series of operations
is interrupted and then memory reference retrieval is performed
in order to restart the operations at some point.
One may interpret Yamaguchi to teach that a series of
operations is completed prior to an interrupt and, as to those
operations, there is certainly a completion of operation "without
interruption." However, as appellant points out, at page 4 of
-6-
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