: ADEVMEM+ 0x55 RAM+ @ + ;
: A@* 0 ADEVMEM+ ;
: A!* 2 ADEVMEM+ ;

: ADEV$
    H@ 0x55 RAM+ !
    4 ALLOT
    ['] C@ A@* !
    ['] C! A!* !
;

: A@ A@* @ EXECUTE ;
: A! A!* @ EXECUTE ;