Transient-area programs are special non-relocatable programs that execute in the Transient Program Area at location X'00E000'.

Under IDF, these programs are debugged in the same way as user-area programs but the TRANS option must be specified so that IDF knows that you want to debug a transient.

     ASMIDF myprog (TRANS / fn ft fm (abcd

When debugging a transient-area program, you do not have access to CMS SUBSET during the debugging session. Running another transient erases your program.