Wide-issue
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Find sources: "Wide-issue" – news · newspapers · books · scholar · JSTOR (October 2015) (Learn how and when to remove this message)
A wide-issue architecture is a computer processor that issues more than one instruction per clock cycle.[1] They can be considered in three broad types:
- Statically-scheduled superscalar architectures execute instructions in the order presented; the hardware logic determines which instructions are ready and safe to dispatch on each clock cycle.
- VLIW architectures rely on the programming software (compiler) to determine which instructions to dispatch on a given clock cycle.[2]
- Dynamically-scheduled superscalar architectures execute instructions in an order that gives the same result as the order presented; the hardware logic determines which instructions are ready and safe to dispatch on each clock cycle.[3]
See also
[edit ]References
[edit ]- ^ "Scheduling for Superscalar & Multiple Issue Machines" (PDF).
- ^ "Wide Issue and Speculation".
- ^ Martin, Milo. "Superscalar" (PDF).
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