scala/ex.scala
changeset 200 8dde2e46c69d
parent 198 d93cc4295306
child 201 09befdf4fc99
equal deleted inserted replaced
199:fdfd921ad2e2 200:8dde2e46c69d
    18 println("TMMopup:   " + (TMMopup(3).run(Tape(1,2,3,4,5))))
    18 println("TMMopup:   " + (TMMopup(3).run(Tape(1,2,3,4,5))))
    19 
    19 
    20 
    20 
    21 // Abacus machine examples
    21 // Abacus machine examples
    22 def Copy(in: Int, out: Int, jump: Int) = 
    22 def Copy(in: Int, out: Int, jump: Int) = 
    23   Abacus(List(Dec(in, jump), Inc(out), Goto(0))) 
    23   Abacus(Dec(in, jump), Inc(out), Goto(0)) 
    24 
    24 
    25 def Plus(m: Int, n: Int, tmp: Int, jump: Int) =
    25 def Plus(m: Int, n: Int, tmp: Int, jump: Int) =
    26   Abacus(List(Dec(m, 4), Inc(n), Inc(tmp), Goto(0), Dec(tmp, jump), Inc(m), Goto(4)))
    26   Abacus(Dec(m, 4), Inc(n), Inc(tmp), Goto(0), Dec(tmp, jump), Inc(m), Goto(4))
    27 
    27 
    28 def Mult(in1: Int, in2: Int, out: Int, tmp: Int, jump: Int) = 
    28 def Mult(in1: Int, in2: Int, out: Int, tmp: Int, jump: Int) = 
    29   Abacus(List(Dec(in1, jump))) ++ Plus(in2, out, tmp, -1).shift(1, -1).adjust(-1, 0)
    29   Abacus(Dec(in1, jump)) ++ Plus(in2, out, tmp, -1).shift(1, -1).adjust(-1, 0)
    30 
    30 
    31 def Expo(in1: Int, in2: Int, out: Int, tmp1: Int, tmp2: Int, jump: Int) = {
    31 def Expo(in1: Int, in2: Int, out: Int, tmp1: Int, tmp2: Int, jump: Int) = {
    32   Abacus(List(Inc(out), Dec(in1, jump))) ++ 
    32   Abacus(Inc(out), Dec(in1, jump)) ++ 
    33   Mult(out, in2, tmp2, tmp1, -1).shift(2, -1).adjust(-1, 10) ++
    33   Mult(out, in2, tmp2, tmp1, -1).shift(2, -1).adjust(-1, 10) ++
    34   Copy(tmp2, out, -1).shift(10, -1). adjust(-1, 1)
    34   Copy(tmp2, out, -1).shift(10, -1).adjust(-1, 1)
    35 }
    35 }
    36 
    36 
    37 println("Copy 3:     " + (Copy(0, 1, -1).run(Map(0 -> 3, 1 -> 0))))
    37 println("Copy 3:     " + (Copy(0, 1, -1).run(Map(0 -> 3, 1 -> 0))))
    38 println("Plus 3 + 4: " + (Plus(0, 1, 2, -1).run(Map(0 -> 3, 1 -> 4, 2 -> 0))))
    38 println("Plus 3 + 4: " + (Plus(0, 1, 2, -1).run(Map(0 -> 3, 1 -> 4, 2 -> 0))))
    39 println("Mult 3 * 5: " + (Mult(0, 1, 2, 3, -1).run(Map(0 -> 3, 1 -> 5, 2 -> 0, 3 -> 0))))
    39 println("Mult 3 * 5: " + (Mult(0, 1, 2, 3, -1).run(Map(0 -> 3, 1 -> 5, 2 -> 0, 3 -> 0))))
    44 println("Compiled Copy 3:     " + toTM(Copy(0, 1, Int.MaxValue).p).run(Tape(3,0,0)))
    44 println("Compiled Copy 3:     " + toTM(Copy(0, 1, Int.MaxValue).p).run(Tape(3,0,0)))
    45 println("Compiled Plus 3 + 4: " + toTM(Plus(0, 1, 2, Int.MaxValue).p).run(Tape(3,4,0,0)))
    45 println("Compiled Plus 3 + 4: " + toTM(Plus(0, 1, 2, Int.MaxValue).p).run(Tape(3,4,0,0)))
    46 println("Compiled Mult 3 * 5: " + toTM(Mult(0, 1, 2, 3, Int.MaxValue).p).run(Tape(3,5,0,0)))
    46 println("Compiled Mult 3 * 5: " + toTM(Mult(0, 1, 2, 3, Int.MaxValue).p).run(Tape(3,5,0,0)))
    47 println("Compiled Expo 3 ^ 4: " + toTM(Expo(0, 1, 2, 3, 4, 10000).p).run(Tape(3,4,0,0,0)))
    47 println("Compiled Expo 3 ^ 4: " + toTM(Expo(0, 1, 2, 3, 4, 10000).p).run(Tape(3,4,0,0,0)))
    48 
    48 
    49 // Recursive Function examples
    49 // Recursive function examples 
    50 def arity(f: Rec) = f match {
    50 println("Add 3 4:   " + Add.eval(3, 4))
    51   case Z => 1
    51 println("Mult 3 4:   " + recs.Mult.eval(3, 4))
    52   case S => 1
    52 println("Twice 4:   " + Twice.eval(4))
    53   case Id(n, _) => n
    53 println("FourTm 4:  " + Fourtimes.eval(4))
    54   case Cn(n, _, _) => n
    54 println("Pred 9:    " + Pred.eval(9))
    55   case Pr(n, _, _) => n + 1
    55 println("Pred 0:    " + Pred.eval(0))
    56   case Mn(n, _) => n 
    56 println("Minus 6 2: " + Minus.eval(6, 2))
    57 }
    57 println("Minus 6 8: " + Minus.eval(6, 8))
    58 
    58 println("Const 8:   " + Const(8).eval(67))
    59 val Add = Pr(1, Id(1, 0), Cn(3, S, List(Id(3, 2))))
    59 println("Power 2 3: " + Power.eval(2, 3))
    60 val Mult = Pr(1, Z, Cn(3, Add, List(Id(3, 0), Id(3, 2))))
    60 println("Sign 8:    " + Sign.eval(8))
    61 val Pred = Cn(1, Pr(1, Z, Id(3, 1)), List(Id(1, 0), Id(1, 0)))
    61 println("Sign 0:    " + Sign.eval(0))
    62 val Minus = Pr(1, Id(1, 0), Cn(3, Pred, List(Id(3, 2))))
    62 println("Less 4 4:  " + Less.eval(4, 4))
    63 
    63 println("Less 4 6:  " + Less.eval(4, 6))
    64 def Const(n: Int) : Rec = n match {
    64 println("Less 6 4:  " + Less.eval(6, 4))
    65   case 0 => Z
    65 println("Not 0:     " + Not.eval(0))
    66   case n => Cn(1, S, List(Const(n - 1)))
    66 println("Not 6:     " + Not.eval(6))
    67 }
    67 println("Eq 4 4:    " + Eq.eval(4, 4))
    68 
    68 println("Eq 4 6:    " + Eq.eval(4, 6))
    69 val Sign = Cn(1, Minus, List(Const(1), Cn(1, Minus, List(Const(1), Id(1, 0)))))
    69 println("Eq 6 4:    " + Eq.eval(6, 4))
    70 val Less = Cn(2, Sign, List(Cn(2, Minus, List(Id(2, 1), Id(2, 0)))))
    70 println("Conj 0 6:  " + Conj.eval(0, 6))
    71 val Not = Cn(1, Minus, List(Const(1), Id(1, 0)))
    71 println("Conj 6 4:  " + Conj.eval(6, 4))
    72 val Eq = Cn(2, Minus, List(Cn(2, Const(1), List(Id(2, 0))), 
    72 println("Conj 0 0:  " + Conj.eval(0, 0))
    73            Cn(2, Add, List(Cn(2, Minus, List(Id(2, 0), Id(2, 1))), 
    73 println("Disj 0 6:  " + Disj.eval(0, 6))
    74              Cn(2, Minus, List(Id(2, 1), Id(2, 0)))))))
    74 println("Disj 6 4:  " + Disj.eval(6, 4))
    75 val Conj = Cn(2, Sign, List(Cn(2, Mult, List(Id(2, 0), Id(2, 1)))))
    75 println("Disj 0 0:  " + Disj.eval(0, 0))
    76 val Disj = Cn(2, Sign, List(Cn(2, Add, List(Id(2, 0), Id(2, 1)))))
    76 println("Sigma Add 2 3 -> 14:  " + Sigma(Add).eval(2,3))
    77 
    77 println("Accum Add 2 3 -> 120: " + Accum(Add).eval(2,3))
    78 def Nargs(n: Int, m: Int) : List[Rec] = m match {
    78 println("Accum Mult 2 3 -> 0:  " + Accum(recs.Mult).eval(2,3))
    79   case 0 => Nil
    79 println("Fact 5:  " + Fact.eval(5))
    80   case m => Nargs(n, m - 1) ::: List(Id(n, m - 1))
    80 println("Prime 0..15: " + (0 to 15).map(n => (n, Prime.eval(n))))
    81 }
    81 println("NextPrime 3: " + NextPrime.eval(3))
    82 
    82 println("NthPrime 1:  " + NthPrime.eval(1))
    83 def Sigma(f: Rec) = {
    83 println("Listsum [2, 3, 4 , 5, 6]: " + Listsum(5, 4).eval(2, 3, 4, 5, 6))
    84   val ar = arity(f)  
    84 // Ask Jian
    85   Pr(ar - 1, Cn(ar - 1, f, Nargs(ar - 1, ar - 1) :::
    85 println("Strt:  " + Strt(2).eval(2, 3))
    86                     List(Cn(ar - 1, Const(0), List(Id(ar - 1, 0))))), 
       
    87              Cn(ar + 1, Add, List(Id(ar + 1, ar), 
       
    88                     Cn(ar + 1, f, Nargs(ar + 1, ar - 1) :::
       
    89                         List(Cn(ar + 1, S, List(Id(ar + 1, ar - 1))))))))
       
    90 }
       
    91 
       
    92 println("Add 3 4:   " + Add.eval(List(3, 4)))
       
    93 println("Mult 3 4:  " + Mult.eval(List(3, 4)))
       
    94 println("Pred 9:    " + Pred.eval(List(9)))
       
    95 println("Pred 0:    " + Pred.eval(List(0)))
       
    96 println("Minus 6 2: " + Minus.eval(List(6, 2)))
       
    97 println("Minus 6 8: " + Minus.eval(List(6, 8)))
       
    98 println("Const 8:   " + Const(8).eval(List(67)))
       
    99 println("Sign 8:    " + Sign.eval(List(8)))
       
   100 println("Sign 0:    " + Sign.eval(List(0)))
       
   101 println("Less 4 4:  " + Less.eval(List(4, 4)))
       
   102 println("Less 4 6:  " + Less.eval(List(4, 6)))
       
   103 println("Less 6 4:  " + Less.eval(List(6, 4)))
       
   104 println("Not 0:     " + Not.eval(List(0)))
       
   105 println("Not 6:     " + Not.eval(List(6)))
       
   106 println("Eq 4 4:    " + Eq.eval(List(4, 4)))
       
   107 println("Eq 4 6:    " + Eq.eval(List(4, 6)))
       
   108 println("Eq 6 4:    " + Eq.eval(List(6, 4)))
       
   109 println("Conj 0 6:  " + Conj.eval(List(0, 6)))
       
   110 println("Conj 6 4:  " + Conj.eval(List(6, 4)))
       
   111 println("Conj 0 0:  " + Conj.eval(List(0, 0)))
       
   112 println("Disj 0 6:  " + Disj.eval(List(0, 6)))
       
   113 println("Disj 6 4:  " + Disj.eval(List(6, 4)))
       
   114 println("Disj 0 0:  " + Disj.eval(List(0, 0)))
       
   115 println("Sigma:     " + Sigma(Add).eval(List(2,3)))
       
   116 
    86 
   117 
    87 
   118 
    88 val ABCZero = Abacus(Goto(1))
   119 val ABCZero = Abacus(List(Goto(1)))
    89 val ABCSucc = Plus(0, 1, 2, 7) ++ Abacus(Inc(1)).shift(Plus(0, 1, 2, 7).p.length, -1)
   120 val ABCSucc = Plus(0, 1, 2, 7) ++ Abacus(List(Inc(1))).shift(Plus(0, 1, 2, 7).p.length, -1)
       
   121 def ABCId(n: Int, m: Int) = Plus(m, n, n + 1, 7)
    90 def ABCId(n: Int, m: Int) = Plus(m, n, n + 1, 7)