On 2014-08-17, at 17:53, J R wrote: > How about something like > START DS 0D > GUBBINS1 DS blah > GUBBINS2 DS blah > GUBBINS3 DS blah > END DS 0D > LENGTH DC S(END-START) > > Would not the base register cancel itself out, leaving an absolute number? > And, if it was inadvertently specified as S(START-END), would it not be > flagged as an error? > === It will not be flagged as an error if a USING in effect allows resolution of S(START-END) to a base and displacement.
-- gil
