Page 149 - DCAP507_SYSTEM_SOFTWARE

Unit 9: Design of an Absolute Loader

6. Discuss the format of Data Bases in the design of a direct linking loader. Notes
7. What is purpose of ID number on ESD cards? Why it is not needed for locally defined
symbols?

8. Describe the function of each of the RLS, ESD, TXT and END records.
9. Illustrate the different types of external symbols.
10. What is Global External Symbol Table? Discuss.

Answers: Self Assessment

1. absolute 2. loader.
3. object file 4. direct-linking

5. non-relocatable 6. ESD
7. External symbols 8. TXT
9. END 10. pass 1

11. pass 2 12. Global External Symbol Table (GEST)
13. different 14. RLD
15. SLENGTH

9.6 Further Readings

Books Chattopadhyay, System Software, PHI Learning Pvt. Ltd.
Donovan, Systems Programming, Tata McGraw-Hill Education

I.A. Dhotre A.A. Puntambekar, Systems Programming, Technical Publications
M. Joseph, System Software, Firewall Media

Online link www.csie.ntu.edu.tw/~pjcheng/course/asm2008/asm_linkload.pdf

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