Biju Patnaik University of Technology 2010 B.Tech Computer Science and Engineering System programming - Question Paper

4th Semester exam – 2010
SYSTEM PROGRAMMING
Full marks – 70
Time : three Hours
ans ques. No.1 which is compulsory and any 5 from the rest.
The figures in the right-hand margin indicate marks.

1. Answer the subsequent questions: 2x10
(a) What is the work of USING pseudo-op?
(b) Describe the structure of BT(Base Table) used in pass two of assembler?
(c) What is a dummy argument in macro? discuss with example.
(d) Differentiate ranging from relocation and loading?
(e) Name the cards generated in a direct linking loader.
(f) Define a formal system mathematically.
(g) Name the analysis phases of a compiler.
(h) For the C statement:
C = a + b;
obtain the codes generated in code generation phase of a compiler.
(i) Define BNF
(j) What is a bootstrap loader? Why it is used?


2. Describe the overall design of pass one of an assembler with the description of the data
structures used in it. 10

3. (a) define conditional macro expansion facilities with suitable examples. five

(b) Write an assembly language program for executing the C instruction: five
d = a + b – c;
presume that address of a=100, b=200, c=300, d=400.

4. Describe the design of a relocating loader. What is the advantage of a relocating loader
over absolute loader? explain. 10

5. Describe the different loading schemes with suitable examples from every. 10

6. Describe the phases of a compiler with neat sketches with their functionality and suitable
example from every. 10

7. (a) elaborate the different code optimization techniques, discuss with suitable examples. five

(b) define the databases used in pass one of macro processing. five


8. Write short notes on any two: 5x2
(a) General machine structure
(b) Overlays
(c) Storage Classes

Earning:   Approval pending.