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Assembler Interview Questions
Questions Answers Views Company eMail

What is the use of TRT instruction and how it is working?

HCL, IBM, Wipro,

7 34056

How are data passed from JCL parm to assembler program. And how is data passed from a calling program to an assembler called program.

HCL, IBM,

3 14407

Why can only 256 bytes be moved from one address to another in a MVC?

CSC, HCL, IBM,

6 15521

What is base register?

IBM, Infosys,

23 93682

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

Mind Tree,

6 21382

How do you initialize a register to 0000?

HCL,

10 21289

Why do we use "drop"? What does "using" do?

4 10935

What is the difference in data type "X" and "P"?

5 11023

Why do we have multiple base registers in certain programs?

IBM,

4 13610

WHAT WILL HAPPEN IF WE DROP THE BASE REGISTER IN THE PGM WHICH CONTAINS ONLY ONE BASEREG?

IBM, Tech Mahindra,

4 10529

How we can Pass the parameters from JCL to assembler Pgm?

Tech Mahindra,

4 15780

How we can retrieve the instream data in SYSIN ?

Tech Mahindra,

2 8673

Can we use an equated value as operand for an MVC instruction? Reason for the same

IBM,

8 13141

about ICM instruction.

EDS,

4 18538

about maximum displacement and how to cross this limit.

EDS,

2 8466


Post New Assembler Questions

Un-Answered Questions { Assembler }

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

1031


how to initialize a register to 0000?

1082


Ap wkur,=p5 where wkur is a label?

1085


Explain about base register?

1017


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?

1078


explain icm instruction?

1028


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?

1934


Explain how to initialize a register to 0000?

961


How to pass the parameters from jcl to assembler program?

950


Explain about house keeping in assembler?

1006


Explain how to pass instream data in sysin with assembler?

1029


What is the use of trt instruction?

972


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

984


what is need of start 0? In steed of

1036


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

982