> Can any please share CICS with Assembler books.

Do you have any prior experience with either one?  (i.e Assembler expericence 
but no CICS? Or CICS experience but no Assembler?) 
To do whatever work it is you've been tasked with well, you'll need experience 
with at least one or the other. 
If you do have experience with either one, I can assure you they make an 
excellent combination. 
So much of CICS makes sense when seen from an Assembler perspective, but it's 
an unfortunately rare combination. 
The only current text I know of which specifically addresses the topic of 
Assembler with CICS is Chapter 1.6 of the CICS Application Programming Guide. 
Here's a link to the CICS/TS 3.2 version, but pretty much any release will have 
the same text:
http://publibfp.boulder.ibm.com/cgi-bin/bookmgr/BOOKS/DFHP3C00/1.6
To find any further (free) explanatory texts, you have to go all the way back 
to Macro Level CICS (v1.5 is good), which is no longer supported, but the 
Assembler samples are nonetheless still good - you just have to add the prolog 
statment (DFHEIENT) and replace the Macros with the corresponding EXEC 
commands. 
There are lots of Assembler examples with explanations in the CICS 1.5 Macro 
Level Application Programmer's Reference: 
http://bitsavers.org/pdf/ibm/370/CICS_VS/SC33-0079-2_CICS_VS_Version_1_Release_5_Application_Programmers_Ref_Macro_Level_May80.pdf
Only the parts specific to the Macro Level coding interface are unusable.  It's 
mainly the internal CICS system organization which has changed since then, but 
application code - once converted to use the Command Level Interface - works 
the same way it always has. 

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