Consider the following RISC V Instruction sequence executing in a $5-$stage pipeline:

$Orx13,x12,x11$

$ld$ xlo, $0(x13)$

$ld$ xil, $8(x13)$

add $xl2,$ xlo, $xl1$

subi $x13,x12,16$

$2\mathrm{.}1$ Identify all of the data hazards and their resolution with NOPs assuming no forwarding or hazard detection hardware is being used

$2\mathrm{.}2$ If there is forwarding, for the first seven cycles during the execution of this code, specify which signals are asserted in each cycle by hazard detection and forwarding units in Figure below.