Query regarding Location Counter and ORG instruction

ap_mainframes

Can anybody please explain the following to me in detail??

1. Every thing regarding Location Counter. And what is it exactly??
2. About ORG instruction.Is it something like REDEFINES in COBOL??

Thanks for all the help you can provide.

ap_mainframes

jon_s_rice · Posted: Mon Jan 02, 2006 6:05 am Post subject:

The location counter keeps track of the current location in the CSECT or DESCT. The ORG instruction sets the location counter to a new address, usually an adddress relative to the current location. It can act like a redefine.

nijugopalan · New User Joined: 15 Oct 2005 Posts: 15 Location: pune

I AM EXPLAINING U ORG
BALANCE DS CL100
ORG BALANCE
INCOME DS CL50

IN THIS EXAMPLE INCOME REDEFINES BALANCE