query on SYSPUNCH DD name while assembler prog compilation

jaganmoni1 · New User Joined: 31 Oct 2008 Posts: 35 Location: CANADA

Hi,

As per my reference material I cam to know that "The SYSPUNCH DD statement defines an object module for the
purpose of producing punched card output. The LRECL must be
80, the RECFM must be FB or F, and the BLKSIZE must be a
multiple of 80."

My query is the SYSLIN DD statement contains the object module that is
processed by the linkage editor. Then what is the purpose of generating the punched card output?

Note: I am using ASMA90 utility to compile my assembler program

enrico-sorichetti · Posted: Fri Apr 17, 2009 4:38 pm

the two ddnames
SYSPUNCH ( driven by the DECK/NODECK )
SYSLIN ( Driven by OBJECT/NOOBJECT )

are equivalent from the point of view of creating an <OBJECT> that can be fed to the linkage editor

( RECFM FB LRECL 80 BLKSIZE <acceptable from the linkage editor> )