Glossary

A.3 Pipeline Latency


The latency of an execution pipeline is the number of cycles between the time an instruction is issued and the time a dependent instruction (which uses its result as an operand) can be issued.

In the R10000 processor, most integer instructions have a single-cycle latency, load instructions have a 2-cycle latency for cache hits, and floating-point addition and multiplication have a 2-cycle latency. Integer multiply, floating-point square-root, and all divide instructions are computed iteratively and have longer latencies.




Copyright 1995, MIPS Technologies, Inc. -- 29 JAN 96


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