memory-reference instruction

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• Instruction cycle — An instruction cycle (sometimes called fetch and execute cycle, fetch decode execute cycle, or FDX) is the basic operation cycle of a computer. It is the process by which a computer retrieves a program instruction from its memory, determines what …   Wikipedia

• Memory-mapped I/O — For more generic meanings of input/output port, see Computer port (hardware). MMIO redirects here. For the airport serving Saltillo, Mexico, assigned the ICAO code MMIO, see Plan de Guadalupe International Airport. Memory mapped I/O (MMIO) and… …   Wikipedia

• Memory management — is the act of managing computer memory. The essential requirement of memory management is to provide ways to dynamically allocate portions of memory to programs at their request, and freeing it for reuse when no longer needed. This is critical to …   Wikipedia

• Memory ordering — is a group of properties of the modern microprocessors, characterising their possibilities in memory operations reordering. It is a type of out of order execution. Memory reordering can be used to fully utilize different cache and memory banks.… …   Wikipedia

• Memory protection — is a way to control memory access rights on a computer, and is a part of most modern operating systems. The main purpose of memory protection is to prevent a process from accessing memory that has not been allocated to it. This prevents a bug… …   Wikipedia

• Memory management unit — This 68451 MMU could be used with the Motorola 68010 A memory management unit (MMU), sometimes called paged memory management unit (PMMU), is a computer hardware component responsible for handling accesses to memory requested by the CPU. Its… …   Wikipedia

• Reference counting — In computer science, reference counting is a technique of storing the number of references, pointers, or handles to a resource such as an object or block of memory. It is typically used as a means of deallocating objects which are no longer… …   Wikipedia

• Orthogonal instruction set — is a term used in computer engineering. A computer s instruction set is said to be orthogonal if any instruction can use data of any type via any addressing mode. The word orthogonal, which means right angle in this context, implies that it is… …   Wikipedia

• Locality of reference — In computer science, locality of reference, also known as the principle of locality, is the phenomenon of the same value or related storage locations being frequently accessed. There are two basic types of reference locality. Temporal locality… …   Wikipedia

• computer memory — memory (def. 11). * * * Introduction       device that is used to store data or programs (sequences of instructions) on a temporary or permanent basis for use in an electronic digital computer. Computers represent information in binary code,… …   Universalium

• Virtual memory — This article is about the computational technique. For the TBN game show, see Virtual Memory (game show). Virtual memory combines active RAM and inactive memory in disk form into a large range of contiguous addresses. In computing, virtual memory …   Wikipedia