Electrical computers and digital processing systems: memory – Address formation – Address mapping
Reexamination Certificate
2005-04-26
2005-04-26
Moazzami, Nasser (Department: 2187)
Electrical computers and digital processing systems: memory
Address formation
Address mapping
C711S206000
Reexamination Certificate
active
06886089
ABSTRACT:
Method and apparatus for accessing paged memory with indirect addressing. A a method for changing pages of memory in an indirect addressed memory having a plurality of addressable locations therein is diclosed. An index indicative of the page of the memory being addressed is stored in a memory location. The memory is addressed with a direct address that selects one or more of the addressable locations in the addressed page of memory. An interrupt is received from a resource capable of generating an interrupt, which interrupt has associated therewith a defined one of the pages of memory. In response to generation of the interrupt, the value of the stored index t is changed o an index associated with the defined one of the pages of memory associated with the resource. In response to receiving a signal indicative of the generated interrupt having been serviced by a system that services interrupts, the stored index is changed to a different index.
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Fernald Kenneth W.
Highley Paul
Storvik II Alvin C.
Wilson Brent
Howison & Arnott , L.L.P.
Moazzami Nasser
Silicon Labs CP Inc.
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