Source program:
---------------

let var x : int := 2
    var y : int := 7
in x+y
end

After lexical analysis:
-----------------------

[ Let,
  Var,
  Id "x", 
  Colon,
  Id "int",
  Assign,
  Intliteral 2,
  Var,
  Id "y",
  Colon,
  Id "int",
  Assign,
  Intliteral 7,
  In,
  Id "x",
  Plus,
  Id "y",
  End
] 

After parsing:
--------------

LetExp { decs = [ VarDec { init = IntExp 2,
                           typ = SOME (-,15),
                           var = { escape = ref true,
                                   name = -
                                 }
                           pos = 7,
                         },
                  VarDec { init = IntExp 7,
                           pos = 28,
                           typ = SOME (-,36),
                           var = { escape = ref true,
                                   name = -
                                 }
                         }
                ],
         body = SeqExp [ (OpExp { left = VarExp (SimpleVar (-,48)),
                                  oper = PlusOp,
                                  pos = 48,
                                  right = VarExp (SimpleVar (-,50))
                                 },
                          48)
                       ],

         pos=3
       }

Intermediate Code 1:
--------------------

MOVE(TEMP T101,
     ESEQ(SEQ(MOVE(MEM[4](BINOP(PLUS,TEMP T100,CONST ~4)),
                   CONST 2),
              MOVE(MEM[4]( BINOP(PLUS,TEMP T100,CONST ~8)),
                   CONST 7)),
              BINOP(PLUS,
                    MEM[4](BINOP(PLUS,TEMP T100,CONST ~4)),
                    MEM[4](BINOP(PLUS,TEMP T100,CONST ~8)))))

Intermediate Code 2:
--------------------

LABEL L19
MOVE(MEM[4](BINOP(PLUS,TEMP T100,CONST ~4)),
     CONST 2)
MOVE(MEM[4](BINOP(PLUS,TEMP T100,CONST ~8)),
     CONST 7)
MOVE(TEMP T101, 
     BINOP(PLUS,
           MEM[4](BINOP(PLUS,TEMP T100,CONST ~4)),
	   MEM[4](BINOP(PLUS,TEMP T100,CONST ~8))))
JUMP(NAME L18)
LABEL L18

SPARC Assembly:
---------------

.global toymain
.section ".text"
toymain:
save %sp, -136,%sp
L19:
mov 2 , %g2
st %g2, [%fp-16]
ld [%fp-16] , %g3
st %g3, [%fp+-4]
mov 7 , %g2
st %g2, [%fp-24]
ld [%fp-24] , %g3
st %g3, [%fp+-8]
ld [%fp+-4], %g2
st %g2, [%fp-32]
ld [%fp+-8], %g2
st %g2, [%fp-36]
ld [%fp-32], %g2
ld [%fp-36], %g3
add %g2, %g3, %g2
st %g2, [%fp-28]
ld [%fp-28], %i0
ba L18
nop
L18:
jmp %i7+8
restore