I use this for bit flags: FIRST EQU *,X'80' SECOND EQU *,X'40' DS X the flag byte
and in code I use TM FIRST,L'FIRST or OI SECOND,L'SECOND saves me from remembering the byte name for the flag -- Martin Pi_cap_CPU - all you ever need around MWLC/SCRT/CMT in z/VSE more at http://www.picapcpu.de