If you set DIALECT"ACU", the following Compiler directives are set:
ACU
ACU-COMMENT
ACU-SYNC
ALIGN(8)
COMP-5(1)
COMP-6(3)
IDENTIFIERLEN(62)
LOCAL-SOURCEFORMAT
NOMFCOMMENT
MFSYNC(8)
NORESEQ
SIGN(ACU)
TRUNC(ACU)