Execution unit
Template:Short description Template:Multiple issues
In computer engineering, an execution unit (E-unit or EU) is a part of a processing unit that performs the operations and calculations forwarded from the instruction unit.[1] It may have its own internal control sequence unit (not to be confused with a CPU's main control unit), some registers,[2] and other internal units such as an arithmetic logic unit,[3] address generation unit, floating-point unit, load–store unit, branch execution unit[4] or other smaller and more specific components, and can be tailored to support a certain datatype, such as integers or floating-points.[5]
It is common for modern processing units to have multiple parallel functional units within its execution units, which is referred to as superscalar design.[6] The simplest arrangement is to use a single bus manager unit to manage the memory interface and the others to perform calculations. Additionally, modern execution units are usually pipelined.
References
Template:CPU technologies Template:Basic computer components
- ↑ Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ "Execution Unit" discussion from the University of Massachusetts Amherst, archived on the Wayback Machine
- ↑ Script error: No such module "citation/CS1".