include start
call3 OK 0 0 attr_get
call OK attr_set ($REVERSE | $BOLD) 2
call3 OK ($ACS_IS_WACS | $REVERSE | $BOLD) 2 attr_get 
call 1 underscore
call3 OK ($ACS_IS_WACS | $REVERSE | $BOLD | $UNDERSCORE) 2 attr_get
call 1 underend
call3 OK ($ACS_IS_WACS | $REVERSE | $BOLD) 2 attr_get