What is the use of trt instruction?

0 Answers  

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about maximum displacement and how to cross this limit.

2 Answers   EDS,

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Explain how to access vsam file?

0 Answers  

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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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Ap wkur,=p5 where wkur is a label?

0 Answers   IBM,

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What is symbol table in assembler?

2 Answers   HCL,

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How are data passed from jcl parm to assembler program?

0 Answers  

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Explain how to initialize a register to 0000?

0 Answers  

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Is it possible to access some memory location (Ex: VAR1 DS P) without using Base Displacement?

1 Answers   HCL,

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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?

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Explain about maximum displacement?

0 Answers  

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What is maximum displacement and how to cross this limit?

0 Answers  

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