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instruction set architecture

   Also found in: Acronyms, Wikipedia, Hutchinson 0.02 sec.
(architecture)instruction set architecture - (ISA) The parts of a processor's design that need to be understood in order to write assembly language, such as the machine language instructions and registers. Parts of the architecture that are left to the implementation, such as number of superscalar functional units, cache size and cycle speed, are not part of the ISA.

The definition of SPARC, for example, carefully distinguishes between an implementation and a specification.


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The AMD Opteron processor for servers and workstations is based on AMD64, which extends the x86 instruction set architecture (ISA) to 64-bit computing for the first time.
Sun Microsystems partners with AMD to provide native support for Java ... by EDP Weekly's IT Monitor
org community, formed in 2005, is the collaborative, open organization driving innovation around Power Architecture[TM] technology through alignment of the instruction set architecture, development of standards and specifications, and nurturing of the Power Architecture brand.
First-ever Power Architecture(TM) Developer Conference to Provide ... by Business Wire
Both cores bring the benefit of the enhanced DSP instructions that are part of the ARMv5TE instruction set architecture.
FUJITSU LICENSES ARM CORES FOR INTERNET AND PORTABLE MULTIMEDIA ... by EDP Weekly's IT Monitor
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