( a b -- ) CODE 2DROP HL POPqq, HL POPqq, chkPS, ;CODE ( a b -- a b a b ) CODE 2DUP HL POPqq, ( b ) DE POPqq, ( a ) chkPS, DE PUSHqq, HL PUSHqq, DE PUSHqq, HL PUSHqq, ;CODE
