What is symbol table in assembler?
- 2 Answers
- 4474 Views
- HCL, I also Faced
- E-Mail Answers
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 |
Is it possible to access some memory location (Ex: VAR1 DS P) without using Base Displacement?
Write the fetch cycle and execute cycle for following instructions:JMPNZ (jump to the given address if the accumulator not equal to zero) RET(return from a subroutine) ADB (add the contents of register B to the accumulator and save result in the accumulator).
What is the difference in data type "X" and "P"?
What is house keeping in assembler? And explain the following code HELLOTSO START 0 * PRINT NOGEN BEGIN SAVE (14,12) LR 12,15 USING TYPE,12 ST 13,SAVE+4 LA 11,SAVE ST 11,8(13) LR 13,11
What is house keeping in assembler?
How are data passed from jcl parm to assembler program?
WHAT WILL HAPPEN IF WE DROP THE BASE REGISTER IN THE PGM WHICH CONTAINS ONLY ONE BASEREG?
What is base register?
How to pass the parameters from jcl to assembler program?
explain icm instruction?
What is the difference between various read and find statement,and which one should be used when for better adabas performance ?
What is maximum displacement?
COBOL 
