Load–store unit
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In computer engineering, a load–store unit (LSU) is a specialized execution unit responsible for executing all load and store instructions, generating virtual addresses of load and store operationscite-ref-1[1]cite-ref-2[2]cite-ref-3[3] and loading data from memory or storing it back to memory from registers.cite-ref-jacob-4-0[4]
The load–store unit usually includes a queue which acts as a waiting area for memory instructions, and the unit itself operates independently of other processor units.cite-ref-jacob-4-1[4]
Load–store units may also be used in vector processing, and in such cases the term "load–store vector" may be used.cite-ref-hennessy-5-0[5]
Some load–store units are also capable of executing simple fixed-point and/or integer operations.
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