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Explain briefly Common sub expression elimination of the commonly used code optimization techniques.
Common sub expression elimination:
In given expression as "(a+b)-(a+b)/4", in such "common sub-expression" termed to the duplicated "(a+b)". Compilers implementing such technique realize that "(a+b)" would not modify, and by itself, only compute its value once and use similar value next time.
What are the disadvantages of Public Key Cryptography? Disadvantages of Public Key Cryptography are as given below: a) It is used to encrypt a secret key that is used to e
What are universal gates. Construct a logic circuit using NAND gates only for the expression x = A . (B + C). Ans. Universal Gates: NAND and NOR Gates both are t
Why pointer variable sometimes desirable to pass a pointer to a function as an argument? Frequently, a called function needs to make changes to objects declared in the calling
Q. Show example of COPY command? This COPY command copies the REPORT file from the drive C to the disk in drive A. after copying the file in drive A, it will name the new file
Contact-based keyboards employ switches directly. Though they have a comparatively shorter life they are the most preferred type these days because of their lower cost. Three such
What is assembly language? A complete set of symbolic names and rules for the use of machines comprise a programming language, usually referred to as an assembly language.
Determine the salient features of a parallel programmable interface, 8255. 24 I/O lines in 3 8-bit port groups - A, B, C A, B can be 8-bit input or output ports C
Whenever we compile with -g option, it will make a symbol table, and according that table for every function and line it will call ptrace.
An EFI boot manager is also used to select and load the operating system, removing the require for a dedicated boot loader mechanism
So far we have considered the problems of poor ID in terms of the loss of productivity and efficiency to business. There is another important aspect to consider: the issue of safet
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