What is house keeping in assembler?

0 Answers  

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

6 Answers   CSC, HCL, IBM,

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Explain how to initialize a register to 0000?

0 Answers  

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

5 Answers  

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registers(0-15) ,where they are going be resides., does that mean here is it resides whether real or virtual memory? and why? then why we are assign even registers(0 to 6) for FP operations????

3 Answers  

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What is maximum displacement and how to cross this limit?

0 Answers  

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Explain the difference between various read and find statement and which one should be used when for better adabas performance?

0 Answers  

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How we can retrieve the instream data in SYSIN ?

2 Answers   Tech Mahindra,

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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?

0 Answers  

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how to produce SOC7 abend

1 Answers   EDS, IBM,

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Why do we have multiple base registers in certain programs?

4 Answers   IBM,

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

3 Answers   HCL, IBM,

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