High speed memory cloning facility via a coherently done...

Details High speed memory cloning facility via a coherently done... High speed memory cloning facility via a coherently done...

2005-07-05

2005-07-05

Verbrugge, Kevin (Department: 2188)

Electrical computers and digital processing systems: memory

Storage accessing and control

Shared memory area

C711S165000

Reexamination Certificate

active

06915390

ABSTRACT:
A processing state that enables a processor to resume processing operations before completion of a processor-issued data move operation. The processor executes instructions specifying a data clone operation and delays subsequent instruction execution while waiting for a receipt of an indication that the data clone operation has completed. In response to the instructions, a memory cloner issues a series of naked write operations targeting the destination memory location and tracks receipt of Null responses for each of the naked write operations. When a Null response has been received for each of the naked write operations, the memory cloner transmits an acknowledgment to the processor indicating that the write operation is architecturally complete before the actual data move has completed. In response to receiving the acknowledgment, the processor resumes execution of subsequent instructions in the instruction stream.

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