E→E1+T1

{E.place:=newtemp; emit(E.place , ":=" ,

E1.place'+' , T1.place)} 

(+, E1.val ,T1.val,E.val)

E→E1-T1

{E.place:=newtemp; emit(E.place , ":=" ,

E1.place'-' , T1.place)}

(-, E1.val ,T1.val,E.val)

E→T1

{E.place:=T1.place;}

T→T1* F1

{T.place:=newtemp; emit(T.place , ":=" ,

T1.place'*' , F1.place)}

(*, T1.val ,F1.val,T.val)

T→T1/F1

{T.place:=newtemp; emit(T.place , ":=" , 

T1.place'/' , F1.place)}　

(/, T1.val ,F1.val,T.val)

T→F1

{T.place:=F1.place;}

F→P1^ F1

{T.place:=newtemp; emit(F.place , ":=" ,

 P1.place'^' , F1.place)}

(^, P1.val ,F1.val,F.val)

F→P1 

{F.place:=newtemp; emit(F.place , ":=" , P1.place)}

P→(E1)　

{P.place:=E1.place}

P→i　

{P:=lookup(id.name); if P<>nil then P.place:=i  else error}