IDF basics

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On CMS and TSO you can activate IDF with the following command: 
 ASMIDF module_name (idf_options/Module_parameters
On z/OS®, you can activate IDF:
  • In TSO batch, with the following command supplied on the DD card SYSTSIN: 
    ASMIDF module_name ( LU vtam_luid idf_options/module_parameters
  • In batch, with the following JCL: 
    //stepname EXEC PGM=ASMIDFB,
//         PARM='module_name ( NOSVC97 LU vtam_luid idf_options /
//             module_parameters'
On z/VSE® you can activate IDF with the following JCL: 
 // EXEC ASMIDF,PARM='module_name (idf_options/module_parameters'
Where:
module_name
The name of the module to be debugged.
idf_options
Options directed to ASMIDF.
module_parameters
The parameters directed to the module to be debugged.
Some command examples are: 
 ASMIDF module_name (COLORS RWGY / in out (abcd
 ASMIDF module_name (PATH / in out (abcd