Interested to Buy Any Domain ? << Click Here >> for more details...
Why can only 256 bytes be moved from one address to another
in a MVC?
- 6 Answers
- 15464 Views
- CSC, HCL, IBM, I also Faced
- E-Mail Answers
Answer Posted / hariconda
MVC FORMAT: SS1 format
ASSEMBLER: OPCODE D1(L,B1),D2(B2)
here the length field is 8 bits or 1 byte so the maximum
value we can move is 256 bytes.
to move more than this use MVCL instruction
| Is This Answer Correct ? | 17 Yes | 1 No |
Post New Answer View All Answers
Why do we use "drop"?
Explain how to produce soc7 abend?
explain icm instruction?
Explain about house keeping in assembler?
What is need of start 0?
What is need of start 0? In steed of can we use anyother numerics? If we use what will happen?
Ap wkur,=p5 where wkur is a label?
How to pass the parameters from jcl to assembler program?
explain about maximum displacement and how to cross this limit?
What is maximum displacement and how to cross this limit?
How many maximum base registers we can have in a program?
Explain the difference in data type "x" and "p"?
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?
What does "using" do?
Explain about maximum displacement?
