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

Answer Posted / guest

the length of the MVC instruction is 256

Is This Answer Correct ?    1 Yes 11 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is need of start 0? In steed of can we use anyother numerics? If we use what will happen?

642


explain icm instruction?

658


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

581


What is icm instruction?

639


Explain how to pass instream data in sysin with assembler?

647






What is need of start 0?

658


What will happen if we drop the base register in the program which contains only one basereg?

577


what is need of start 0? In steed of

675


Explain about house keeping in assembler?

636


Ap wkur,=p5 where wkur is a label?

669


how to pass the parameters from jcl to assembler pgm?

657


How are data passed from jcl parm to assembler program?

583


Explain about base register?

606


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?

1531


how to initialize a register to 0000?

667