Performing an asynchronous memory move (AMM) via execution of AMM store instruction within the instruction set architecture
US7958327B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2008 |
| Grant date | Jun 7, 2011 |
| Priority date | — |
| Expiry date | Nov 5, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data processing system with a processor and memory includes an instruction set architecture (ISA) that provides an asynchronous memory move (AMM) store (ST) instruction. When the processor executes the AMM ST instruction, the processor performs a series of functions, which initiates an asynchronous memory move (AMM) operation. The AMM ST instruction moves data from a first memory location having a first real address to a second memory location having a second real address by: (a) performing a move of the data in virtual address space utilizing a source effective address that is memory mapped to the first memory location and a destination effective address that is memory mapped to the second memory location. When the move is completed in the virtual address space, the AMM operation performs the physical move of the data to the second memory location outside the processor core, without processor involvement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.