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For which of the following operations Arithmetic Pipeline would be used?

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  1. Popping value from a stack
  2. Floating-point operations
  3. Integer operations
  4. Pushing value on a stack

Answer (Detailed Solution Below)

Option 2 : Floating-point operations
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Detailed Solution

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The correct answer is Option 2) Floating-point operations.

Key Points

  • Arithmetic pipelines are specialized pipelines designed to perform complex arithmetic computations efficiently by breaking them into multiple stages.
  • They are especially useful for floating-point operations such as addition, subtraction, multiplication, and division.
  • These operations involve multiple steps (e.g., alignment, normalization, rounding) that can be pipelined to improve performance.
  • Each stage of the pipeline handles a part of the floating-point computation, allowing overlapping execution of multiple operations.
  • This enhances the throughput of floating-point arithmetic, making it ideal for scientific and engineering applications.

Additional Information

  • Option 1 – Incorrect: Popping a value from a stack is a simple memory operation, not arithmetic in nature.
  • Option 3 – Incorrect: Integer operations are generally simpler and do not typically require pipelining due to fewer computation stages.
  • Option 4 – Incorrect: Pushing values onto a stack is a memory access operation, unrelated to arithmetic pipelines.
  • Example Use Cases of Arithmetic Pipelines:
    • Graphics processing
    • Scientific simulations
    • Signal processing
    • Mathematical co-processors in CPUs
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Latest BELTRON Programmer Updates

Last updated on Nov 25, 2024

-> BELTRON Programmer 2024 Notification has been released on the official website.

-> The Bihar State Electronics Development Corporation Limited (BELTRON) has announced a recruitment drive for Programmer positions on a contractual basis.

-> Specific vacancy details will be shared separately.

-> Interested candidates can apply online from November 11, 2024, to December 10, 2024.

-> The Minimum age of the candidates should be 21 years and maximum age should be 59 year of age. 

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More Instruction Pipeline Questions

Q1.Which table for a dynamic pipeline become more interesting when a nonlinear pattern is follows?
Q2.A processor chip is used for application in which 30% of execution time is spent on floating point addition. For the new model of the processor, the design team has come up with redesign the floating point adder to make it twice as fast. What will be possible maximum speed up by this redesign? 
Q3.Consider an unpipelined machine with 10nsec clock cycles which uses four cycles for ALU operations and branches where as five cycles for memory operation. Assume that the relative frequencies of these operations are: 40%, 20% and 40%, respectively. Due to clock skew and setup pipeline let us consider that the machine adds one nsec overhead to the clock. How much speedup is observed in the instruction execution rate when a pipelined machine is considered. 
Q4.Direction: The item consists of two statements, one labelled as 'Statement (I)' and the other as 'Statement (II)'. You are to examine these two statements carefully and select the answers to these items using the code given below. Statement (I): Pipeline processing cycle overlaps computer instruction cycle in execution for the  performance improvement. Statement (II): Pipelining is a technique of decomposing a sequential process into sub-operations, with each sub-process being executed in a special dedicated segment that operates concurrently with all other segments.
Q5.Which of the following hazards occurs if the read takes place before the write operation is complete?
Q6.In an instruction execution pipeline, the earliest that the instruction TLB and data TLB can be accessed are 
Q7.Which of the following statements is true?
Q8.A 5-stage pipelined processor has Instruction Fetch (IF), Instruction Decode (ID), Operand Fetch (OF), Perform Operation (PO) and Write Operand (WO) stages. The IF, ID, OF and WO stages take 1 clock cycle each for any instruction. The PO stage takes 1 clock cycle for ADD and SUB instructions, 3 clock cycles for MUL instruction, and 6 clock cycles for DIV instruction respectively. Operand forwarding is used in the pipeline. What is the number of clock cycles needed to execute the following sequence of instructions? Instruction Meaning of instruction I0 : MUL R2, R0, R1 R2← R0 * R1 I1 : DIV R5, R3, R4 R5 ← R3 / R4 I2 : ADD R2, R5, R2 R2 ← R5 + R2 I3 : SUB R5, R2, R6 R5 ← R2 – R6
Q9.Consider an instruction pipeline with four stages (S1, S2, S3 and S4) each with combinational circuit only. The pipeline registers are required between each stage and at the end of the last stage. Delays for the stages and for the pipeline registers are as given in the figure. What is the approximate speed up of the pipeline in steady state under ideal conditions when compared to the corresponding non-pipeline implementation?
Q10.On a non-pipelined sequential processor, a program segment, which is a part of the interrupt service routine, is given to transfer 500 bytes from an I/O device to memory. Initialize the address register Initialize the count to 500 LOOP: Load a byte from device Store in memory at address given by address register Increment the address register Decrement the count If count ! = 0 go to LOOP Assume that each statement in this program is equivalent to a machine instruction which takes one clock cycle to execute if it is a non-load/store instruction. The load-store instructions take two clock cycles to execute. The designer of the system also has an alternate approach of using the DMA controller to implement the same transfer. The DMA controller requires 20 clock cycles for initialization and other overheads. Each DMA transfer cycle takes two clock cycles to transfer one byte of data from the device to the memory. What is the approximate speedup when the DMA controller based design

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Q1.Consider the following sequence of micro operations : MBR ← PC MAR ← X PC ← Y MEMORY ← MBR Which one of the following is possible operation performed by this sequence ?
Q2.Correct the order of instruction cycle: A. Read the effective address B. Fetch the information C. Execute the instruction D. Decode the instruction Choose the correct answer from the options given below:
Q3.Consider a pipeline unit for fixed - point multiplication of 8-bit integers. Arrange the following stages in a correct sequence. Stage A : Consists of two CSAS and it merges four numbers from previous stage. Stage B : is a CPA, which adds up the two numbers Stage C : is made upto two level of four CSAS. Stage D : Generates eight partial products. Choose the correct answer from the options given below:
Q4.Which table for a dynamic pipeline become more interesting when a nonlinear pattern is follows?
Q5.A system bus in which each data item is transferred during a time slice known in advance to both units source and destination is called:
Q6.In most general case, the computer needs to process each instruction with the following sequence of steps: (A) Calculate the effective address (B) Execute the instruction (C) Fetch the instruction from memory (D) Fetch the operand from memory (E) Decode the instruction Choose the correct answer from the options given below:
Q7.A processor chip is used for application in which 30% of execution time is spent on floating point addition. For the new model of the processor, the design team has come up with redesign the floating point adder to make it twice as fast. What will be possible maximum speed up by this redesign? 
Q8.The correct sequence in fetch-execute cycle is ______ A. Decode B. Fetch C. Execute Chose the correct answer from the following 
Q9.Consider an unpipelined machine with 10nsec clock cycles which uses four cycles for ALU operations and branches where as five cycles for memory operation. Assume that the relative frequencies of these operations are: 40%, 20% and 40%, respectively. Due to clock skew and setup pipeline let us consider that the machine adds one nsec overhead to the clock. How much speedup is observed in the instruction execution rate when a pipelined machine is considered. 
Q10.Direction: The item consists of two statements, one labelled as 'Statement (I)' and the other as 'Statement (II)'. You are to examine these two statements carefully and select the answers to these items using the code given below. Statement (I): Pipeline processing cycle overlaps computer instruction cycle in execution for the  performance improvement. Statement (II): Pipelining is a technique of decomposing a sequential process into sub-operations, with each sub-process being executed in a special dedicated segment that operates concurrently with all other segments.
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Q1.Which of the following statement(s) is/are correct? Statement A : ALU can perform both arithmetic and logical operations. Statement B : CPU is used to process, display and store data or information.
Q2.The addressing mode/s, which uses the PC instead of a general-purpose register is : 
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Q5.In the case of, Zero-address instruction method the operands are stored in __________.
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