Method and apparatus for performing direct memory access transfers involving non-sequentially-addressable memory locations
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United States of America Patent
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Apr 17, 2001
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N/A
app pub date -
Aug 28, 1998
filing date -
Aug 28, 1998
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Abstract
A method and apparatus for transferring data in a computer system between a first memory region and second memory region in a single Direct Memory Access (DMA) operation. The first memory region, the second memory region, or both the first and second memory regions can include sub-regions of sequentially-addressable memory locations that are separated, within their respective regions, by a stride. The method and apparatus are particularly well adapted for use in computer graphics systems that include one or more regions of memory, such as frame buffers, that are organized in a rectangular manner as a plurality of contiguous but not sequentially-addressable memory locations within the memory of the graphics system.
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