Classical

Compiler Design - Runtime environments

1:  

In which of the following no information hiding is done ?

A.

compile prog 1,  prog 2

B.

run test, prog

C.

load R1 , A

D.

001001000010101

 
 

Option: D

Explanation :


2:  

The identification of common sub-expression and replacement of run-time computations by compile-time computations is

A.

local optimization

B.

loop optimization

C.

constant folding

D.

data flow analysis

 
 

Option: C

Explanation :


3:  

The graph that shows basic blocks and their successor relationship is called

A.

DAG 

B.

Flow graph

C.

control graph

D.

Hamiltonion graph

 
 

Option: B

Explanation :


4:  

The specific task storage manager performs 

A.

allocation/ deallocation of storage to programs

B.

protection of storage area allocated to a program from illegal access by othere programs in the system

C.

the status of each program

D.

both ( a ) and ( b ) 

 
 

Option: D

Explanation :


5:  

 When a computer is first turned on or resrarted, a special type of absolute loader is executed called

A.

" Compile and GO " loader

B.

Boot loader

C.

Boot strap loader

D.

Relating loader

 
 

Option: C

Explanation :




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Syllabus Covered in this section is

  • Compilation and Interpretation 
  • Bootstrap compilers
  • Phases of compilation process
  • Lexical analysis
  •  Context free grammars
  • Parsing and parse trees
  • Representation of parse (derivation) trees as rightmost and leftmost derivations
  • Bottom up parsers-shift-reduce, operator precedence and LR
  • Topdown parsers-left recursion and its· removal.
  • Recursive descent parser.
  • Predictive parser
  • Intermediate codes-Quadruples, Triples
  • Intermediate code generation
  • Target code generation
  • Basics of  Code optimization
  • Syntax directed translation
  • Runtime environments

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