Assembler Interview Questions
Questions Answers Views Company eMail

What is symbol table in assembler?

HCL,

2 3017

In the house keeping section of an MVS assembly language program, like the one below STM R14,R12,12(R13) BASR R12,R0 USING *,R12,R11 LA R11,2048 LA R11,2048(R11,R12) .... .... 1. What if BASR R12,R0 IS NOT PRECEDE USING *,R12,R11? 2. USING (base address), REGISTER does USING directive says assembler to treat particular Register as a base register with the mentioned base address..in the above case * i.e current location counter..well if that is the case why we need BASR R12,R0 ? 3. What if I write like STM R14,R12,12(R13) BASR R12,R0 LA R11,2048 LA R11,2048(R11,R12) USING *,R12,R11 there is no address resolution being calculated in both LA statements so is it a right way to set Base register?..will there be any issues with Domain regarding R11 and R12?

893

What does LA R3,R3 ?

Amdocs,

1 1040




explain icm instruction?

IBM,

67

explain about maximum displacement and how to cross this limit?

IBM,

51

how to retrieve the instream data in sysin?

IBM,

69

how to pass the parameters from jcl to assembler pgm?

IBM,

74

what is need of start 0? In steed of

IBM,

65




Ap wkur,=p5 where wkur is a label?

IBM,

58

how do you round the addition or subtraction of two numbers in assembler? what does the following code do? change process tool(code changes from dev to prd) the changes made to your code should be effected in live. How the process takes place. That is how can you move the code changes from development to production?

IBM,

68

how to initialize a register to 0000?

IBM,

60

What is need of start 0?

55

What does the following code do? Ap wkur,=p5 where wkur is a label?

39

What is need of start 0? In steed of can we use anyother numerics? If we use what will happen?

44

How do you round the addition or subtraction of two numbers in assembler?

44


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Un-Answered Questions { Assembler }

how to initialize a register to 0000?

60


Ap wkur,=p5 where wkur is a label?

58


Explain how to produce soc7 abend?

31


What is need of start 0? In steed of can we use anyother numerics? If we use what will happen?

44


How many maximum base registers we can have in a single program?

34






explain icm instruction?

67


how to retrieve the instream data in sysin?

69


How many maximum base registers we can have in a program?

40


Explain about base register?

38


how to pass the parameters from jcl to assembler pgm?

74


What is need of start 0?

55


Explain the difference between various read and find statement?

28


What will happen if we drop the base register in the program which contains only one basereg?

30


What is the use of trt instruction?

33


What does "using" do?

26