Tomasulo example: Cycle by cycle execution- cycles 1-3 | Video 10a скачать в хорошем качестве

Tomasulo example: Cycle by cycle execution- cycles 1-3 | Video 10a

Play at 2x speed. Watch 10a to 10d in a sequential manner Here, we simulate Tomasulo's algorithm cycle-by-cycle, so that we can track the state of its key components for each clock cycle . We use a set of instructions as example. This dynamic scheduling technique allows for out-of-order execution, resolving data dependencies and eliminating hazards like Write-After-Write (WAW) and Write-After-Read (WAR). A cycle-by-cycle execution depends on the state of three major hardware components: Instruction Queue: A buffer of instructions waiting to be issued in program order. Reservation Stations (RS): Buffers for functional units (e.g., Adders, Multipliers). Each entry holds an instruction, its operands, and information on where to find any unavailable operands. This is where register renaming happens. Common Data Bus (CDB): A broadcast channel that functional units use to send their results to any reservation station or register waiting for that value