FSM-based Control Unit Mode e-0,s2-d, start-0" mode-d/SI-d, m-d, start mode start-1, s2-d, l State mode-ds1-d, ! start-d, e-1, s2 I m start-d' (e-1,2-1. mode-1/ s1-0,m-1, s2s1 State State start-d, e-162-0 mode-d/ 1,m-0, Combinational Logic (MUX1) State Combinational Logic (+-) Combinational Logic(MUXZ) 0:A+B+C+D :A+B+C-D clk, reset Data path FIGURE 6.7 The FSD in Fig. 6.6 with the actual control signals; d stands for don't-care. Consider a multi-cycle discussed in class that performs either the RTN R B + C-D or the RTN R A-B C D. Assume the control unit for the data path inputs signals start, mode (clk ans reset not counted), and outputs the data path control signals as well as a done signal when it is done executing each RTN. Do the following: 1) Create a data path to execute the RTNs depending on the value of the mode signal. When mode 0 the data path executes R