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virtual cache

virtual cache in Technology


A cache which uses virtual address, i.e. it is between the processor and the memory management unit. A virtual cache cannot recognise external access to physical address, e.g. from DMA. The whole cache must be flushed when swapping between tasks which share same virtual address space.
(1994-11-30)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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