Explain the difference in data type "x" and "p"?

0 Answers  

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how to find the dump

3 Answers   EDS,

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What does "using" do?

0 Answers  

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Can we use MVC instruction to move pack field to pack field....which instruction you will use and why ?

4 Answers   Amdocs, IBM,

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What is maximum displacement and how to cross this limit?

0 Answers  

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explain icm instruction?

0 Answers   IBM,

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

8 Answers   IBM,

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What is maximum displacement?

0 Answers  

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Explain the difference between various read and find statement?

0 Answers  

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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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what is need of START 0?. In steed of '0' can we use any other numerics?. if we use what will happen?.

4 Answers   CSC, TCS,

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Why do we have multiple base registers in certain programs?

4 Answers   IBM,

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