372. The number of memory cycles required to execute the following 8085 instructions (I) LDA 3000 H,LXI D, FOF 1 H,would be
A. 2 for (I) and 2 for (II)
B. 4 for (I) and 3 for (II)
C. 3 for (I) and 3 for (II)
D. 3 for (I) and 4 for (II)

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373. In the modulo-6 ripple counter shown in the given figure 7.27, the output of the 2-input gate is used to clear the J-K flip-flops. Oodc inputFig. 7.27 The 2-input gate is
A. a NAND gate
B. a NOR gate
C. an OR gate
D. an AND gate

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374. Consider the sequence of 8085 instructions given below. LXI H, 9258, MOV A, M, CMA, MOV M,A Which one of the following is performed by this sequence?
A. Contents of location 9258 are moved to the accumulator
B. Contents of location 9258 are compared with the contents of the accumulator
C. Contents of location 8529 are complemented and stored in location 8529
D. Contents of location 5 892 are complemented and stored in location 5892

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375. A Boolean function f of two variables x and y id defined as follows :f(0,0) =f(0,1) = j(1,1) = 1;f(1,0) = 0 Assuming complements of x and y are not available, a minimum cost solution for realizing f using only 2-input NOR gates and 2-input OR gates (each having unit cost) would have a total cost of
A. 1 unit
B. 4 unit
C. 3 unit
D. 2 unit

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376. It is desired to multiply the numbers OAH by OBH and store the result in the accumulator. The numbers are available in registers B and C respectively. A Part of the 8085 program for this purpose is given below :MVIA,00H,Loop;,LILT END,The sequence of instruction to the complete the program would be
A. JNZ LOOP, ADD B,-DCRC
B. ADD B,-JNZ LOOP, DCRC
C. DCR C,-JNZ LOOP, ADD B
D. ADD B,DCRC,JNZ LOOP

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377. Decimal 43 in Hexadecimal and BCD number system is respectively
A.B2,0100001I
B.2B4O100 0011
C.2B4O011 0100
D.B2,0100 0100

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378. The Boolean function f implemented in the rgure 7.28 using two input multiplexers is
A.ABC + AB
B.ABC+AT3
C. A + ABC
D. ABC+ A BC

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