Re-Fetching operands (cont).
c. If the operand status is FALSE, then this register is referring to a renamed register value that was not ready when it was originally issued.
Use the operand value on the ISSUE bus to access the ROB entry status. If it is FINISHED_VALID or FINISHED_INVALID, then the correct operand value is in the ROB buffer. Write this value to the issue bus and set the operand status to TRUE.
If the operand status is ISSUED_INVALID or ISSUED_VALID, then the operand is not ready yet - do not change operand status or value.