What is symbol table in assembler?
Answers were Sorted based on User's Feedback
Answer / bala
assembler maintains a table where Entry address for all lables being declared in the program. In below, symbol table will have details like "Para-1 000A", "VAR-1 ----" and so on. Address(entry point) for MVC instruction will not have its entry in symbol tabel as it does not have any label to be referred.. Still Location counter used to maintain address for each instruction. Here Location counter will have address of MVC as '000A' and its length of instruction. Here Para-1 address and MVC address is same as 0H does not reserve storage.
For example, Para-1 address is at X'000A'.
para-1 DS 0H
MVC VAR-1,VAR-2
---
--
VAR-1 CL4
VAR-2 CL4
Is This Answer Correct ? | 0 Yes | 0 No |
Answer / anish
In computer science, a symbol table is a data structure used by a language translator such as a compiler or interpreter, where each identifier in a program's source code is associated with information relating to its declaration or appearance in the source, such as its type, scope level and sometimes its location.A symbol table may only exist during the translation process, or it may be embedded in the output of that process for later exploitation, for example, during an interactive debugging session, or as a resource for formatting a diagnostic report during or after execution of a program.
Is This Answer Correct ? | 0 Yes | 1 No |
Explain how to produce soc7 abend?
how to retrieve the instream data in sysin?
Explain how to access vsam file?
How to initialize 20,000 bytes in the Assembler..
How we can Pass the parameters from JCL to assembler Pgm?
What will happen if we drop the base register in the program which contains only one basereg?
Why can only 256 bytes be moved from one address to another in a MVC?
Can we use MVC instruction to move pack field to pack field....which instruction you will use and why ?
Explain the difference in data type "x" and "p"?
How to pass the parameters from jcl to assembler program?
Explain how to pass instream data in sysin with assembler?
what is need of START 0?. In steed of '0' can we use any other numerics?. if we use what will happen?.