>> ....wonder why IBM is supporting two flavors of the same program, with the expense of keeping documentation and code changes in sync?
Wild Guess: to bring a very usefull program to the other platforms HLASM runs on- such as z/VSE and z/VM - which do not have SUPERC or ISPF. -- Martin Pi_cap_CPU - all you ever need around MWLC/SCRT/CMT in z/VSE more at http://www.picapcpu.de