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There are situations, called hazards that stop the next instruction in the instruction stream from implementing during its designated clock cycle. Hazards decrease the performance from the ideal speedup gained by pipelining. There are three classes of Hazards:
1. Structural Hazards: It happens from resource conflicts when the hardware cannot support all possible combinations of instructions simultaneously in overlapped implementation.
2. Data Hazards: It happens when an instruction depends on the results of last instruction in a way that is exposed by the overlapping of instructions in the pipeline.
3. Control Hazards: It happens from the pipelining of branches and other instructions that change the PC.
Explain the difference between a function declaration and function definition. Function declaration and Function definition: A function declaration having the name of th
What is virtual memory? Virtual memory is a technique that permits the execution of processes that may not be completely in memory. It is the separation of user logical memory
Name some register output control signals. Pc out , MDR out , Z out , Offset out , R1 out , R2 out , R3 out and TEMP out .
A shell is a program that presents an interface to several operating system functions and services. The shell is so called because it is an outer layer of interface among the user
T he complexity of adding two matrices of order m*n is mn
Define end series and its application
Q. Which way do twin twist props on a boat rotate when propelling the boat forward? Answer:- In opposite direction however they are designed to propel the boat forward eve
The conflict between too hot and too cold or too slow and too fast can be resolved using don't care states. Don't care states are used when i) the state of the output is not
The Boolean expression A‾.B + A.B‾ + A.B is equivalent to ? Ans. The Boolean expression A‾ .B + A. B‾+ A.B is equivalent to A + B (A‾ .B + A. B‾+ A.B = B( A‾ + A) + A. B‾ =
What are the advantages of code optimization? Code optimization tends at enhancing the execution efficiency of a program. It is achieved in two manners. Redundancies in a progr
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