Explain how to initialize a register to 0000?

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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Write the fetch cycle and execute cycle for following instructions:JMPNZ (jump to the given address if the accumulator not equal to zero) RET(return from a subroutine) ADB (add the contents of register B to the accumulator and save result in the accumulator).

1 Answers  

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

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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Explain about house keeping in assembler?

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What is base register?

23 Answers   IBM, Infosys,

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How are data passed from jcl parm to assembler program?

0 Answers  

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How to initialize 20,000 bytes in the Assembler..

5 Answers   Amdocs, IBM,

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What is house keeping in assembler?

0 Answers  

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how to initialize a register to 0000?

0 Answers   IBM,

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What is the use of trt instruction?

0 Answers  

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