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instruction fetch

См. также в других словарях:

  • 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

  • Instruction pipeline — Pipelining redirects here. For HTTP pipelining, see HTTP pipelining. Basic five stage pipeline in a RISC machine (IF = Instruction Fetch, ID = Instruction Decode, EX = Execute, MEM = Memory access, WB = Register write back). In the fourth clock… …   Wikipedia

  • Fetch-and-add — In computer science, the fetch and add CPU instruction is a special instruction that atomically modifies the contents of a memory location. It is used to implement Mutual exclusion and concurrent algorithms in multiprocessor systems.In… …   Wikipedia

  • Instruction set — An instruction set, or instruction set architecture (ISA), is the part of the computer architecture related to programming, including the native data types, instructions, registers, addressing modes, memory architecture, interrupt and exception… …   Wikipedia

  • Instruction set simulator — An instruction set simulator (ISS) is a simulation model, usually coded in a high level programming language, which mimics the behavior of a mainframe or microprocessor by reading instructions and maintaining internal variables which represent… …   Wikipedia

  • Instruction prefetch — In computer architecture, instruction prefetch is a technique used in microprocessors to speed up the execution of a program by reducing wait states.Modern microprocessors are much faster than the memory where the program is kept, meaning that… …   Wikipedia

  • Instruction unit — The instruction unit (IU) in a CPU is responsible for maintaining the fetch pipeline and for dispatching instructions. It stores the instruction that is required to processes the data …   Wikipedia

  • Cycles per instruction — In computer architecture, cycles per instruction (aka clock cycles per instruction, clocks per instruction, or CPI) is a term used to describe one aspect of a processor s performance: the number of clock cycles that happen when an instruction is… …   Wikipedia

  • Cycles Per Instruction — In computer architecture, Cycles per instruction (clock cycles per instruction or clocks per instruction or CPI) is a term used to describe one aspect of a processor s performance: the number of clock cycles that happen when an instruction is… …   Wikipedia

  • Explicitly Parallel Instruction Computing — EPIC bezeichnet eine Eigenschaft einer Befehlssatzarchitektur (englisch Instruction Set Architecture, kurz ISA) und der Verarbeitungsstruktur einer Familie von Mikroprozessoren, z. B. Itanium. Bei der Programmierung von EPIC CPUs wird… …   Deutsch Wikipedia

  • Burroughs large systems instruction set — The B5000 instruction set is the set of valid operations for the Burroughs large systems including the current (as of 2006) Unisys Clearpath/MCP systems. These unique machines have a distinctive design and instruction set. Each word of data is… …   Wikipedia

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