Specifying the source file: SYSIPT

Define the file that contains your source code with the SYSIPT ASSGN statement. If you include your source code in your job stream, it must immediately follow the EXEC statement that invokes the assembler, and be terminated with a /* statement.

You can, however, use JCL statements to define a file that contains your source code. For example, to define a direct-access device file, use the DLBL, EXTENT, and ASSGN statements:

// DLBL IJSYSIN,'file-ID',0,SD
// EXTENT SYSIPT,volser,1,0,start,tracks
// ASSGN SYSIPT,DISK,VOL=volser,SHR