Appeal No. 1997-4061
Application 08/469,498
Appellants' invention as set forth in claim 13 except for
storing the first control data from the first switching means
memory into the second switching means memory and restoring
means for restoring
first control data back into the first switching means memory.
The Examiner relies on Fairchild for disclosing this feature.
In particular, on page 4 of the answer, the Examiner states
that Fairchild shows that the address of an instruction ad-
dress register (IAR)(24) is transferred into a storage address
register (SAR)(26) for the purposes of addressing the instruc-
tion in the main storage unit (21) to be executed. The Exam-
iner further points out that when an interrupt occurs, the
contents of the IAR 24 are saved in an interrupt link regis-
ter (ILR)(170) and when the interrupt routine is finished, the
contents of ILR 170 are transferred back into the SAR. The
Examiner points to Fairchild, column 2, lines 31 through 46;
column 3, lines 52 through 62; and column 8, line 66, through
8
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