How do the contents of the MAR and MDR registers changes during the fetch decode execute cycle?

How do the contents of the MAR and MDR registers changes during the fetch decode execute cycle?
by

1 Answer

Answer :

Need answer
by
selected by

Related questions

Which cycle refers to the time period during which one instruction is fetched and executed by the CPU: a. Fetch cycle b. Instruction cycle c. Decode cycle d. Execute cycle

Description : Which cycle refers to the time period during which one instruction is fetched and executed by the CPU: a. Fetch cycle b. Instruction cycle c. Decode cycle d. Execute cycle

Last Answer : b. Instruction cycle

__is the sequence of operations performed by CPU in processing an instruction: a. Execute cycle b. Fetch cycle c. Decode d. Instruction cycle

Description : __is the sequence of operations performed by CPU in processing an instruction: a. Execute cycle b. Fetch cycle c. Decode d. Instruction cycle

Last Answer : d. Instruction cycle

_is the step during which a new instruction is read from the memory: a Decode b. Fetch c. Execute d. None of these

Description : _is the step during which a new instruction is read from the memory: a Decode b. Fetch c. Execute d. None of these

Last Answer : b. Fetch

Pipeline implement a. fetch instruction b. decode instruction c. fetch operand d. calculate operand e. execute instruction f. all of abve

Description : Pipeline implement a. fetch instruction b. decode instruction c. fetch operand d. calculate operand e. execute instruction f. all of abve

Last Answer : f. all of abve

A computer executes programs in the sequence of : (1) Execute, Fetch, Decode (2) Store, Fetch, Execute (3) Fetch, Decode, Execute (4) Decode, Fetch, Execute

Description : A computer executes programs in the sequence of : (1) Execute, Fetch, Decode (2) Store, Fetch, Execute (3) Fetch, Decode, Execute (4) Decode, Fetch, Execute

Last Answer : Fetch, Decode, Execute

Debugger is a program that (A) allows to examine and modify the contents of registers (B) does not allow execution of a segment of program (C) allows to set breakpoints, execute a segment of program and display contents of register (D) All of the above

Description : Debugger is a program that (A) allows to examine and modify the contents of registers (B) does not allow execution of a segment of program (C) allows to set breakpoints, execute a segment of program and display contents of register (D) All of the above

Last Answer : (C) allows to set breakpoints, execute a segment of program and display contents of register

In memory transfer location address is supplied by that puts this on address bus. a. ALU b. CPU Cc. MAR d. MDR

Description : In memory transfer location address is supplied by that puts this on address bus. a. ALU b. CPU Cc. MAR d. MDR

Last Answer : b. CPU

Which register is connected to the memory by way of the address bus: a. MAR b. MDR c. SAM d. None of these

Description : Which register is connected to the memory by way of the address bus: a. MAR b. MDR c. SAM d. None of these

Last Answer : a. MAR

Which register is used to communicate with memory: a. MAR b. MDR c. Both A and B d. None of these

Description : Which register is used to communicate with memory: a. MAR b. MDR c. Both A and B d. None of these

Last Answer : c. Both A and B

The fetch-execute cycle is to use a system know as: a. Assembly line b. Pipelining c. Cache d. None of these

Description : The fetch-execute cycle is to use a system know as: a. Assembly line b. Pipelining c. Cache d. None of these

Last Answer : b. Pipelining

Who is the represents the fundamental process in the operation of the CPU: a. The fetch-execute cycle and pipelining b. The assembly c. Both A and B d. None of these

Description : Who is the represents the fundamental process in the operation of the CPU: a. The fetch-execute cycle and pipelining b. The assembly c. Both A and B d. None of these

Last Answer : a. The fetch-execute cycle and pipelining

How can we make computers work faster? a. The fetch-execute cycle and pipelining b. The assembly c. Both A and B d. None of these

Description : How can we make computers work faster? a. The fetch-execute cycle and pipelining b. The assembly c. Both A and B d. None of these

Last Answer : a. The fetch-execute cycle and pipelining

The necessary steps carried out to perform the operation of accessing either memory or I/O Device, constitute a ___________________ a) fetch operation b) execute operation c) machine cycle

Description : The necessary steps carried out to perform the operation of accessing either memory or I/O Device, constitute a ___________________ a) fetch operation b) execute operation c) machine cycle

Last Answer : c) machine cycle

Jump has 3 major states are: a. Fetch b. Decode c. Complete d= Allof these

Description : Jump has 3 major states are: a. Fetch b. Decode c. Complete d= Allof these

Last Answer : d= Allof these

is the step during which the operations specified by the instruction are executed: a. Execute b. Decode c. Both a& b d. None of these

Description : is the step during which the operations specified by the instruction are executed: a. Execute b. Decode c. Both a& b d. None of these

Last Answer : a. Execute

Which registers can interact with secondary memory? (A) Register (B) Memory Address Register(MAR) (C) Instruction Register(IR) (D) None of the Above

Description : Which registers can interact with secondary memory? (A) Register (B) Memory Address Register(MAR) (C) Instruction Register(IR) (D) None of the Above

Last Answer : (B) Memory Address Register(MAR)

The instruction fetch operation is initiated by loading the contents of program counter into the and sends _ request to memory: a. Memory register and read b. Memory register and write c. Data register and read d. Address register and read

Description : The instruction fetch operation is initiated by loading the contents of program counter into the and sends _ request to memory: a. Memory register and read b. Memory register and write c. Data register and read d. Address register and read

Last Answer : d. Address register and read

Which of the following registers is loaded with the contents of the memory location pointed by the PC? A) Memory address registers B) Memory data registers C) Instruction register D) Program counter

Description : Which of the following registers is loaded with the contents of the memory location pointed by the PC? A) Memory address registers B) Memory data registers C) Instruction register D) Program counter

Last Answer : Answer : C

The contents of information are stored in A) Memory data register B) Memory address register C) Memory arithmetic registers D) Memory access register

Description : The contents of information are stored in A) Memory data register B) Memory address register C) Memory arithmetic registers D) Memory access register

Last Answer : Answer : A

Which of the following registers is loaded with the contents of the memory location pointed by the PC? a. Memory address registers b. Memory data registers c. Instruction register d. Program counter

Description : Which of the following registers is loaded with the contents of the memory location pointed by the PC? a. Memory address registers b. Memory data registers c. Instruction register d. Program counter

Last Answer : Instruction register

Which of the following registers is loaded with the contents of the memory location pointed by the PC? a. Memory address register b. Memory data register c. Instruction registers d. Program counter

Description : Which of the following registers is loaded with the contents of the memory location pointed by the PC? a. Memory address register b. Memory data register c. Instruction registers d. Program counter

Last Answer : c. Instruction registers

Which of the following registers is loaded with the contents of the memory location pointed by the PC? a. Memory address registers b. Memory data registers c. Instruction register d. Program counter

Description : Which of the following registers is loaded with the contents of the memory location pointed by the PC? a. Memory address registers b. Memory data registers c. Instruction register d. Program counter

Last Answer : c. Instruction register

Which of the following registers is loaded with the contents of the memory location pointed by the PC? a. Memory address register b. Memory data register c. Instruction registers d. Program counter

Description : Which of the following registers is loaded with the contents of the memory location pointed by the PC? a. Memory address register b. Memory data register c. Instruction registers d. Program counter

Last Answer : c. Instruction registers

The 8O85 assembly language instruction that stores the contents of H and L registers into the memory

Description : The 8O85 assembly language instruction that stores the contents of H and L registers into the memory locations 2050H and 2051H, respectively, is: A) SPHL 2050H B) SPHL 2051H C) SHLD 2050H D) STAX 2050H

Last Answer : The 8O85 assembly language instruction that stores the contents of H and L registers into the memory locations 2050H and 2051H, respectively, is: SHLD 2050H

The act of acquiring an instruction is referred as the____ the instruction: a. Fetching b. Fetch cycle c. Both a and b d. None of these

Description : The act of acquiring an instruction is referred as the____ the instruction: a. Fetching b. Fetch cycle c. Both a and b d. None of these

Last Answer : a. Fetching

Briefly explain the steps involved in a fetch cycle?

Description : Briefly explain the steps involved in a fetch cycle?

Last Answer : Answer :Fetch cycle is the time required to fetch an opcode from a particular location in memory. General Fetch Cycles consist of 3T states. The first T state involves the sending of the memory address ... . For slower memories the processors has the provision to get in to the WAIT cycles as well.

A CPU handles interrupt by executing interrupt service subroutine................. (A) by checking interrupt register after execution of each instruction (B) by checking interrupt register at the end of the fetch cycle (C) whenever an interrupt is registered (D) by checking interrupt register at regular time interval

Description : A CPU handles interrupt by executing interrupt service subroutine................. (A) by checking interrupt register after execution of each instruction (B) by checking interrupt register ... cycle (C) whenever an interrupt is registered (D) by checking interrupt register at regular time interval

Last Answer : (A) by checking interrupt register after execution of each instruction

In 8085 microprocessor, how many T-states does OPCODE FETCH machine cycle normally require

Description : In 8085 microprocessor, how many T-states does OPCODE FETCH machine cycle normally require (i.e., when HOLD and WAIT signals are NOT forced)? A) 4 to 6 B) 3 to 8 C) 2 to 3 D) 8 to 12 

Last Answer : In 8085 microprocessor, how many T-states does OPCODE FETCH machine cycle normally require (i.e., when HOLD and WAIT signals are NOT forced)? A) 4 to 6 B) 3 to 8 C) 2 to 3 D) 8 to 12 

MDR(Memory Data Register) holds the --- 1) Segment number 2) Address of a memory location 3) Number of transistors 4) none of these

Description : MDR(Memory Data Register) holds the --- 1) Segment number 2) Address of a memory location 3) Number of transistors 4) none of these

Last Answer : 3) Number of transistors

The information on the data bus is transferred to the ______register: a. MOC b. MDR c. VAM d. CPU

Description : The information on the data bus is transferred to the ______register: a. MOC b. MDR c. VAM d. CPU

Last Answer : b. MDR

The information is transferred from the_____ and ____ specified register: a. MDR b. CPU c. Both A and B

Description : The information is transferred from the_____ and ____ specified register: a. MDR b. CPU c. Both A and B

Last Answer : c. Both A and B

MDR stands for: a. Memory data register b. Memory data recode c. Micro data register d. None of these

Description : MDR stands for: a. Memory data register b. Memory data recode c. Micro data register d. None of these

Last Answer : a. Memory data register

ED stands for: a. Enable MRD b. Enable MDR c. Both a and b d. None of these

Description : ED stands for: a. Enable MRD b. Enable MDR c. Both a and b d. None of these

Last Answer : b. Enable MDR

Multidrug resistant (MDR) tuberculosis is defined as resistance to: A. Any two or more antitubercular drugs B. Isoniazid + any other antitubercular drug C. Isoniazid + Rifampin + any one or more antitubercular drugs D. All five first line antitubercular drugs

Description : Multidrug resistant (MDR) tuberculosis is defined as resistance to: A. Any two or more antitubercular drugs B. Isoniazid + any other antitubercular drug C. Isoniazid + Rifampin + any one or more antitubercular drugs D. All five first line antitubercular drugs

Last Answer : C. Isoniazid + Rifampin + any one or more antitubercular drugs

Repetitive CNC machine operations conveniently performing and execute with onecommand instead of programming of series of individual move called ….. a.Common Cycle b.Incremental Programming c.Canned Cycle d.None of the above

Description : Repetitive CNC machine operations conveniently performing and execute with onecommand instead of programming of series of individual move called ….. a.Common Cycle b.Incremental Programming c.Canned Cycle d.None of the above

Last Answer : c.Canned Cycle

Decode is the step during which instruction is__ a. Initialized b. Incremented c. Decoded d. Bothb&c

Description : Decode is the step during which instruction is__ a. Initialized b. Incremented c. Decoded d. Bothb&c

Last Answer : c. Decoded

Which of the following definition is incorrect: a) Document Map - Changes the view of the document b) View - Magnifies or reduces the document contents by the specified zoom percentage c) Office Assistant - Help Function d) None of These

Description : Which of the following definition is incorrect: a) Document Map - Changes the view of the document b) View - Magnifies or reduces the document contents by the specified zoom percentage c) Office Assistant - Help Function d) None of These

Last Answer : d) None of These

How do I decode scribbled out writing in pen?

Description : How do I decode scribbled out writing in pen?

Last Answer : You could try shading with a pencil edge, over another piece of paper. Whatever was written, may have been deeper, and stand out…

Can you decode this mathematical joke?

Description : Can you decode this mathematical joke?

Last Answer : That’s just a double derivative. I don’t find anything particularly hilarious about that.

Something that requires our mental skill to decode it, our imagination to understand it, our knowledge is tested to its max, it confuses us at every stage, it seems easy yet difficult, only those who are used to, will get through. What is it? -Riddles

Description : Something that requires our mental skill to decode it, our imagination to understand it, our knowledge is tested to its max, it confuses us at every stage, it seems easy yet difficult, only those who are used to, will get through. What is it? -Riddles

Last Answer : A riddle.

The first letter is derived from the 18th letter of greek alphabet, the second one is the rounded form of v, the third one arises from the 2nd letter of greek alphabt, the fourth one is derived from the 9th letter of greek, and the last letter is believed to be derived from Djet (an egyptian pharoah ) Can you decode it? -Riddles

Description : The first letter is derived from the 18th letter of greek alphabet, the second one is the rounded form of v, the third one arises from the 2nd letter of greek alphabt, the fourth one is derived ... last letter is believed to be derived from Djet (an egyptian pharoah ) Can you decode it? -Riddles

Last Answer : This answer was deleted by moderators

UnicodeDecodeError: 'utf-8' codec can't decode byte 0x8b in position 1: invalid start byte - gzip file -Web-Development

Description : UnicodeDecodeError: 'utf-8' codec can't decode byte 0x8b in position 1: invalid start byte - gzip file -Web-Development

Last Answer : answer:

Pickle file error - UnicodeDecodeError: 'utf-8' codec can't decode byte 0x80 in position 0: invalid start byte -Web-Development

Description : Pickle file error - UnicodeDecodeError: 'utf-8' codec can't decode byte 0x80 in position 0: invalid start byte -Web-Development

Last Answer : answer:

UnicodeDecodeError: 'charmap' codec can't decode byte 0x81 in position 1800: character maps to <undefined> -Web-Development

Description : UnicodeDecodeError: 'charmap' codec can't decode byte 0x81 in position 1800: character maps to -Web-Development

Last Answer : answer:

Python UnicodeDecodeError: 'utf-8' codec can't decode bytes -Web-Development

Description : Python UnicodeDecodeError: 'utf-8' codec can't decode bytes -Web-Development

Last Answer : answer:

Could you help me identify how to decode 0x636869636b656e and Njg2ZjZlNjU3OTYzNmY2ZDYy. I have been trying base64 hex and others but nothing has been showing up?

Description : Could you help me identify how to decode 0x636869636b656e and Njg2ZjZlNjU3OTYzNmY2ZDYy. I have been trying base64 hex and others but nothing has been showing up?

Last Answer : It always helps to know the context of the object to be decoded (or where it came from).Trying ASCII and EBCDIC conversion web sites, a sensible result for 0x636869636b656e is the ASCII ... is an encrypted password belonging to another person, decoding would be a disservice to the password owner.

decode vin number?

Description : decode vin number?

Last Answer : can you decode vin number?

How can I decode vin on my car?

Description : How can I decode vin on my car?

Last Answer : Yes it is possible to decode your vin number. I can suggest a good website called www.edmunds.com. You will be able to decode your car's vin number by using this site.

Degeneracy of genetic code implies that (A) Codons do not code for specific amino acid (B) Multiple codons must decode the same amino acids (C) No anticodon on tRNA molecule (D) Specific codon decodes many amino acids

Description : Degeneracy of genetic code implies that (A) Codons do not code for specific amino acid (B) Multiple codons must decode the same amino acids (C) No anticodon on tRNA molecule (D) Specific codon decodes many amino acids

Last Answer : Answer : B

Semantic grammars are _____________ a) Encode semantic information into a syntactic grammar b) Decode semantic information into a syntactic grammar c) Encode syntactic information into a semantic grammar d) Decode syntactic information into a semantic grammar

Description : Semantic grammars are _____________ a) Encode semantic information into a syntactic grammar b) Decode semantic information into a syntactic grammar c) Encode syntactic information into a semantic grammar d) Decode syntactic information into a semantic grammar

Last Answer : a) Encode semantic information into a syntactic grammar