An 8255 interfaced with 8086 microprocessor as shown in Figure 4b. Perform the following operations: (a) Identify the Port Address. (b) Identify the Mode 0 control word to configure Port A and Port Cu as output ports and Port B and Port CL as input ports. (C) Write a program to read the DIP switches and display the reading from Port B at Port A, and from Port CL at Port Cu. Vec PAZ A7 1 Buffer ht kk PAO A6 A5 PC7 A3 Buffer PC4 Kd 8255A AL mi PC3 1 AQ ho RD PCO PB7 WR RESET PBO m DIP Switch Vec Fig. 4b