Re-order buffer

Re-order buffer

A re-order buffer ("ROB") is used in a Tomasulo algorithm for out-of-order instruction execution. It allows instructions to be committed in-order.

Additional benefits include allowing for precise exceptions and easy rollback for control of target address mispredictions (branch or jump).

External links

* [http://www.cs.swan.ac.uk/~csandy/cs-323/notes/0708.cs-323010.html Reorder Buffers and Register Renaming]


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