https://en.wikipedia.org/wiki/Operand_forwarding https://en.wikipedia.org/wiki/Operand_forwarding Add and subtract is too expensive to be multiplied. This thi

https://en.wikipedia.org/wiki/Operand_forwarding https://en.wikipedia.org/wiki/Operand_forwarding Add and subtract is too expensive to be multiplied. This thing referenced above effectively reduces pipeline length by one step and is quite useful in scoreboarding-based implementation of OoO instruction issue.