How about this:
JCTG R0,*counts to zero in R0 (using "grosse" register) -- Martin Pi_cap_CPU - all you ever need around MWLC/SCRT/CMT in z/VSE more at http://www.picapcpu.de
How about this:
JCTG R0,*counts to zero in R0 (using "grosse" register) -- Martin Pi_cap_CPU - all you ever need around MWLC/SCRT/CMT in z/VSE more at http://www.picapcpu.de