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Direct-Mapped DMA Window Changes  



The changes described in this chapter were made in OpenVMS Version 7.2 to support OpenVMS Galaxy and memory holes. The change involves moving the direct-mapped DMA window away from physical memory location 0. This chapter should provide enough background and information for you to update your driver if you have not yet updated it to OpenVMS Version 7.2 or later.

Note that this chapter does not cover the bus-addressable pool (BAP).


 
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