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copy editting; maybe this makes the logical flow more human-readable |
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*Retrieve the next instruction from the head of the instruction queue. If the instruction operands are currently in the registers, then
**If
**Else, as there is no available functional unit, stall the instruction until a station or buffer is free.
*Otherwise, we can assume the operands are not in the registers, so use virtual values; the functional unit must calculate the real value, in order to keep track of the functional units that will produce the operand.
===Stage 2: execute===
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