a) What are the contents. A and B registers after execution of each instruction in the following program? MOV of XRL A, B -) Calculate the an sunt of time delay generated following program. Assume the so of 8851 as 11.0592 MHZ LABEL DELAY: LOOP 1: MOV OFDH#12 H MOV RO, # OFOH MOV A #344 XCH A, OF OH LOOP2: LOOP3: INSTRUCTIONS MOVR1,# 21 MOV R2, # 170 MOV R3 # 255 DJNZ R3,LOOR 3 BDJNZ R2, LOOP DJNZ RI, LOOP ) RET the by cuptal frequency NO OF MACHINE CYCLE 1 1 1 2 2 2 2