Explain the difference in data type "x" and "p"?
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how to initialize a register to 0000?
What is the use of trt instruction?
Ap wkur,=p5 where wkur is a label?
about maximum displacement and how to cross this limit.
What will happen if we drop the base register in the program which contains only one basereg?
Explain how to access vsam file?
How to pass the parameters from jcl to assembler program?
How do you initialize a register to 0000?
Why can only 256 bytes be moved from one address to another in a MVC?
registers(0-15) ,where they are going be resides., does that mean here is it resides whether real or virtual memory? and why? then why we are assign even registers(0 to 6) for FP operations????
Can we use MVC instruction to move pack field to pack field....which instruction you will use and why ?
What is need of start 0?
COBOL 
