Computer system and method with memory copy command
First Claim
Patent Images
1. A computer system including:
- a processor;
a controller;
a data communications facility interconnecting said processor and controller; and
a memory having a plurality of locations for storing data;
wherein said controller is responsive to a single command received from the processor to copy data from a first memory location to a second memory location, wherein said single command specifies said first and second memory locations.
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Abstract
A computer system is provided including a processor, a memory (such as RAM) having a plurality of locations for storing data, and a controller. A data communications facility (such as a bus) interconnects the processor and the controller, while the controller is in turn coupled to the memory. The controller is responsive to a single command received from the processor to copy data from a first memory location to a second memory location, as specified within the command. By copying data in this manner, processor and bus bandwidth can be preserved.
118 Citations
30 Claims
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1. A computer system including:
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a processor;
a controller;
a data communications facility interconnecting said processor and controller; and
a memory having a plurality of locations for storing data;
wherein said controller is responsive to a single command received from the processor to copy data from a first memory location to a second memory location, wherein said single command specifies said first and second memory locations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A computer system including:
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processor means;
controller means;
data communications means for interconnecting said processor means and said controller means; and
memory means having a plurality of locations for storing data;
wherein said controller means includes means responsive to a single command received from the processor means for copying data from a first memory location to a second memory location, wherein said single command specifies said first and second memory locations.
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22. A method for operating a computer system including a processor, a controller, a data communications facility interconnecting said processor and controller, and a memory having a plurality of locations for storing data, said method comprising:
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issuing a single command from the processor to the controller, said command specifying a first memory location and a second memory location; and
responsive to receipt of said single command by the controller, copying data from a first memory location to a second memory location. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30)
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Specification