ref: 3c5e1caa7c29d1a559d1144d3d00d9d981a7ac9a dir: /test/link/section-union/split-data.asm/
IF !DEF(SECOND) DATA equs "ds 1\ndb $aa" ELSE DATA equs "db $bb\nds 1" ENDC SECTION UNION "mutually-overlaid data", ROM0 DATA PURGE DATA