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Questions and Answers
Which component is responsible for transferring operands to the ALU for arithmetic and logical instructions?
Which component is responsible for transferring operands to the ALU for arithmetic and logical instructions?
- Instruction Register (IR)
- Memory Address Register (MAR)
- Program Counter (PC)
- Control Unit (correct)
In the instruction format LDR registerdestination, memorysource, what does 'LDR' stand for?
In the instruction format LDR registerdestination, memorysource, what does 'LDR' stand for?
- Load Register
- Load Direct Register
- Loading Data Register
- Load Data to Register (correct)
When performing an LDR operation, what is the direction of data transfer?
When performing an LDR operation, what is the direction of data transfer?
- Register → ALU
- ALU → Register
- Memory → Register (correct)
- Register → Memory
What happens after an instruction is decoded in the execution process for arithmetic and logical operations?
What happens after an instruction is decoded in the execution process for arithmetic and logical operations?
In the context of instruction processing, what does the Program Counter (PC) indicate?
In the context of instruction processing, what does the Program Counter (PC) indicate?
Which addressing mode allows register indirect addressing with displacement in ARM architecture?
Which addressing mode allows register indirect addressing with displacement in ARM architecture?
What is the main advantage of accessing registers over memory locations in ARM architecture?
What is the main advantage of accessing registers over memory locations in ARM architecture?
In ARM assembly language, what operation copies the content of a memory location into a register?
In ARM assembly language, what operation copies the content of a memory location into a register?
Which type of computer architecture does ARM follow?
Which type of computer architecture does ARM follow?
In RISC architecture, what is the main advantage of having fixed instruction sizes?
In RISC architecture, what is the main advantage of having fixed instruction sizes?
In a stored program machine, which unit is responsible for handling the transfer of data between the computer and external devices?
In a stored program machine, which unit is responsible for handling the transfer of data between the computer and external devices?
What does a memory unit in a computer system store?
What does a memory unit in a computer system store?
How are memory locations identified in a computer system?
How are memory locations identified in a computer system?
Which factor determines the number of memory locations that can be addressed in a computer system?
Which factor determines the number of memory locations that can be addressed in a computer system?
What is the main function of the Input/Output (I/O) unit in a computer system?
What is the main function of the Input/Output (I/O) unit in a computer system?
What is the purpose of appending an 'S' to an instruction in ARM programming?
What is the purpose of appending an 'S' to an instruction in ARM programming?
In ARM programming, what does BEQ onZero do?
In ARM programming, what does BEQ onZero do?
Why might dividing a 16-bit addition into two 8-bit additions yield an incorrect result?
Why might dividing a 16-bit addition into two 8-bit additions yield an incorrect result?
What happens if Z = 0 in CPSR during the execution of the onZero instruction?
What happens if Z = 0 in CPSR during the execution of the onZero instruction?
Why are registers needed in CPU despite having memory locations?
Why are registers needed in CPU despite having memory locations?
What does a literal operand in ARM assembly language look like?
What does a literal operand in ARM assembly language look like?
When executing LDR r1, #25 instruction, where is the value 25 being loaded from?
When executing LDR r1, #25 instruction, where is the value 25 being loaded from?
What is the purpose of the CPSR in ARM architecture?
What is the purpose of the CPSR in ARM architecture?
In ARM assembly language, how are branching decisions made based on flags?
In ARM assembly language, how are branching decisions made based on flags?
What does the instruction BEQ allow a processor to do?
What does the instruction BEQ allow a processor to do?
