Appeal No. 1997-4061
Application 08/469,498
for execution in place of the instructions of the first bug
portion, whereby said first plurality of patch instructions
are executed by the processor in place of the instructions of
the first bug portion, said switching means further including
i) a second switching means memory;
ii) means for moving, during execution of one
of
said plurality of interrupt processing routines by
the
processor, the first control data into the second
switching means memory, and for thereafter storing
second control data into said first switching means
memory and such that, during said one of said plu-
rality
of interrupt processing routines, the switching
means
provides to the address bus, under the control of
said
second control data held in the first switching
means
memory, a patch memory address of a second plurality
of
patch instructions in said patch information memory
in
place of a read-only memory address of instructions
of
a second bug portion of the program, such that the
second plurality of patch instructions are provided
to the processor for execution in place of the
instructions of the second bug portion, whereby,
during said one of said plurality of interrupt
processing routines, said second plurality of patch
instructions are executed by the processor in place
of the instructions of said second bug portion; and
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