The ___________ contains the address of the next instruction to be executed. a) IR b) PC c) Accumulator d) System counter

The ___________ contains the address of the next instruction to be executed. a) IR b) PC c) Accumulator d) System counter
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Answer: b Explanation: PC stands for program counter (It contains the address of the next instruction to be executed)
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The contents of the program counter isthe __——__—oof the instruction to be run. a. Data b. Address c. Counter d. None of these

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When subroutine is called contents of program counter is location address of __ instruction following call instruction is stored on _ __and program execution is transferred to __ address. a. Non executable, pointer and subroutine b. Executable, Stack and Main program Cc. Executable, Queue and Subroutine d. Executable, Stack and Subroutine

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Last Answer : d. Executable, Stack and Subroutine

Who change the address in the program counter and cause the flow of control to be altered: a Shift manipulation b. Circular manipulation c. Program control instruction d. __ Allof these

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The subprogram finish the return instruction recovers the return address from the: a. Queue b. Stack c. Program counter d. Pointer

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A storage area used to store data to a compensate for the difference in speed at which the different units can handle data is A) Memory B) Buffer C) Accumulator D) Address

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What the Difference between accumulator and instruction register 8080?

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Which of the following instruction perform as of indirect RAM to accumulator? a) MOV A, Rn b) MOV @Ri, A c) MOV A, @Ri d) MOV Rn, A

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Last Answer : c) MOV A, @Ri

If initial content of accumulator is 44 H, find out the new content of accumulator after execution of the instruction RR A

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Last Answer : Contents of Acc will be 22H ( as RR A divides acc by 2)

The Complement Accumulator (CMA) instruction of 8085 processor on execution affects...

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Last Answer : B

A single instruction to clear the lower four bits of the accumulator I 8085 assembly language is:

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Instruction formats contains the memory address of the a. Memory data b. Main memory Cc. CPU d. ALU

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Last Answer : b. Main memory

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Last Answer : a. The address of next instruction to be run

Micro-orders generate the_ __ address of operand and execute instruction and prepare for fetching next instruction from the main memory: a. Physical b. Effective c. Logical d. all of above

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Last Answer : b. Effective

Which of the following registers is used to keep track of address of the memory location where the next instruction is located? a. Memory Address Register b. Memory Data Register c. Instruction Register d. Program Register

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Last Answer : d. Program Register