Computer Science Engineering (CSE) Exam > Computer Science Engineering (CSE) Questions > A microprogram sequencera)generates the addre...
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A microprogram sequencer
- a)generates the address of next micro instruction to be executed.
- b)generates the control signals to execute a microinstruction.
- c)sequentially averages all microinstructions in the control memory.
- d)enables the efficient handling of a micro program subroutine.
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
A microprogram sequencera)generates the address of next micro instruct...
Concept:
Micro Instructions A sequencer is a collection of all devices used to pick the next micro-instruction location.
Micro Instructions A sequencer is a collection of all devices used to pick the next micro-instruction location.
- The micro-instruction in control memory comprises a set of bits that launch micro-operations in computer registers as well as additional bits that define how the address is accessed.
- A microprogram sequencer generates the address of the next microinstruction to be executed.
- A sequencer or microsequencer generates the addresses used to step through the microprogram of a control store.
- It is used as a part of the control unit of a CPU or as a stand-alone generator for address ranges.
Hence the correct answer is to generate the address of the next microinstruction to be executed.
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A microprogram sequencera)generates the address of next micro instruct...
Explanation:
The correct answer is option 'A', which states that a microprogram sequencer generates the address of the next microinstruction to be executed. Let's understand why this is the correct answer.
Microprogram Sequencer:
A microprogram sequencer is a component of a microprocessor that controls the execution of microinstructions stored in the control memory. It generates the address of the next microinstruction to be executed based on the current microinstruction and the control signals received from other components.
Address Generation:
The microprogram sequencer is responsible for generating the address of the next microinstruction to be executed. It uses various techniques to determine the next address, such as conditional branching, unconditional branching, and sequential execution.
Control Signals:
While the microprogram sequencer generates the address of the next microinstruction, it also generates the control signals required to execute that microinstruction. These control signals determine the operations to be performed by other components of the microprocessor, such as the ALU (Arithmetic Logic Unit), registers, and memory.
Control Memory Averaging:
The statement in option 'C', which mentions that the microprogram sequencer sequentially averages all microinstructions in the control memory, is incorrect. The microprogram sequencer does not perform any averaging operation on the microinstructions in the control memory. Its main function is to generate the address of the next microinstruction.
Efficient Handling of Microprogram Subroutine:
The statement in option 'D' is also incorrect. While the microprogram sequencer plays a role in handling microprogram subroutines, it does not specifically enable efficient handling. Microprogram subroutines are handled through techniques like subroutine calls and returns, which involve saving the return address and jumping to the subroutine.
Conclusion:
In summary, the correct answer is option 'A', which states that a microprogram sequencer generates the address of the next microinstruction to be executed. It is responsible for controlling the execution flow in the microprocessor by determining the address and generating the control signals for the next microinstruction.
The correct answer is option 'A', which states that a microprogram sequencer generates the address of the next microinstruction to be executed. Let's understand why this is the correct answer.
Microprogram Sequencer:
A microprogram sequencer is a component of a microprocessor that controls the execution of microinstructions stored in the control memory. It generates the address of the next microinstruction to be executed based on the current microinstruction and the control signals received from other components.
Address Generation:
The microprogram sequencer is responsible for generating the address of the next microinstruction to be executed. It uses various techniques to determine the next address, such as conditional branching, unconditional branching, and sequential execution.
Control Signals:
While the microprogram sequencer generates the address of the next microinstruction, it also generates the control signals required to execute that microinstruction. These control signals determine the operations to be performed by other components of the microprocessor, such as the ALU (Arithmetic Logic Unit), registers, and memory.
Control Memory Averaging:
The statement in option 'C', which mentions that the microprogram sequencer sequentially averages all microinstructions in the control memory, is incorrect. The microprogram sequencer does not perform any averaging operation on the microinstructions in the control memory. Its main function is to generate the address of the next microinstruction.
Efficient Handling of Microprogram Subroutine:
The statement in option 'D' is also incorrect. While the microprogram sequencer plays a role in handling microprogram subroutines, it does not specifically enable efficient handling. Microprogram subroutines are handled through techniques like subroutine calls and returns, which involve saving the return address and jumping to the subroutine.
Conclusion:
In summary, the correct answer is option 'A', which states that a microprogram sequencer generates the address of the next microinstruction to be executed. It is responsible for controlling the execution flow in the microprocessor by determining the address and generating the control signals for the next microinstruction.
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A microprogram sequencera)generates the address of next micro instruction to be executed.b)generates the control signals to execute a microinstruction.c)sequentially averages all microinstructions in the control memory.d)enables the efficient handling of a micro program subroutine.Correct answer is option 'A'. Can you explain this answer?
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