1 // Part 2 about an Interpreter for the Brainf*** language |
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2 //======================================================== |
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3 |
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4 object CW8b { |
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5 |
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6 type Mem = Map[Int, Int] |
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7 |
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8 // (2a) Complete the functions for safely reading |
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9 // and writing brainf*** memory. Safely read should |
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10 // Return the value stored in the Map for a given memory |
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11 // pointer, if it exists; otherwise it Returns 0. The |
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12 // writing function generates a new Map with the |
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13 // same data, except at the given memory pointer the |
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14 // value v is stored. |
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15 |
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16 |
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17 def sread(mem: Mem, mp: Int) : Int = |
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18 mem.getOrElse(mp, 0) |
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19 |
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20 def write(mem: Mem, mp: Int, v: Int) : Mem = |
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21 mem.updated(mp, v) |
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22 |
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23 |
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24 // (2b) Implement the two jumping instructions in the |
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25 // brainf*** language. In jumpRight, given a program and |
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26 // a program counter move the program counter to the right |
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27 // until after the *matching* ]-command. Similarly, |
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28 // jumpLeft implements the move to the left to just after |
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29 // the *matching* [--command. |
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30 |
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31 def jumpRight(prog: String, pc: Int, level: Int) : Int = { |
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32 if (prog.length <= pc) pc |
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33 else (prog(pc), level) match { |
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34 case (']', 0) => pc + 1 |
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35 case (']', l) => jumpRight(prog, pc + 1, l - 1) |
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36 case ('[', l) => jumpRight(prog, pc + 1, l + 1) |
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37 case (_, l) => jumpRight(prog, pc + 1, l) |
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38 } |
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39 } |
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40 |
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41 def jumpLeft(prog: String, p: Int, level: Int) : Int = { |
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42 if (p < 0) p |
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43 else (prog(p), level) match { |
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44 case ('[', 0) => p + 1 |
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45 case ('[', l) => jumpLeft(prog, p - 1, l - 1) |
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46 case (']', l) => jumpLeft(prog, p - 1, l + 1) |
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47 case (_, l) => jumpLeft(prog, p - 1, l) |
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48 } |
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49 } |
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50 |
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51 //jumpLeft("[******]***", 7, 0) |
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52 |
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53 // (2c) Complete the run function that interpretes (runs) a brainf*** |
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54 // program: the arguments are a program, a program counter, |
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55 // a memory counter and a brainf*** memory. It Returns the |
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56 // memory at the stage when the excution of the brainf*** program |
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57 // finishes. The interpretation finishes once the program counter |
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58 // pc is pointing to something outside the program string. |
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59 // If the pc points to a character inside the program, the pc, |
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60 // memory pointer and memory need to be updated according to |
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61 // rules of the brainf*** language. Then, recursively, run |
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62 // function continues with the command at the new program |
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63 // counter. |
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64 // Implement the start function that calls run with the program |
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65 // counter and memory counter set to 0. |
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66 |
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67 def run(prog: String, pc: Int, mp: Int, mem: Mem) : Mem = { |
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68 if (0 <= pc && pc < prog.length) { |
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69 val (new_pc, new_mp, new_mem) = prog(pc) match { |
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70 case '>' => (pc + 1, mp + 1, mem) |
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71 case '<' => (pc + 1, mp - 1, mem) |
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72 case '+' => (pc + 1, mp, write(mem, mp, sread(mem, mp) + 1)) |
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73 case '-' => (pc + 1, mp, write(mem, mp, sread(mem, mp) - 1)) |
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74 case '.' => { print(sread(mem, mp).toChar); (pc + 1, mp, mem) } |
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75 case ',' => (pc + 1, mp, write(mem, mp, Console.in.read().toByte)) |
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76 case '[' => |
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77 if (sread(mem, mp) == 0) (jumpRight(prog, pc + 1, 0), mp, mem) else (pc + 1, mp, mem) |
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78 case ']' => |
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79 if (sread(mem, mp) != 0) (jumpLeft(prog, pc - 1, 0), mp, mem) else (pc + 1, mp, mem) |
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80 case _ => (pc + 1, mp, mem) |
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81 } |
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82 run(prog, new_pc, new_mp, new_mem) |
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83 } |
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84 else mem |
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85 } |
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86 |
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87 def start(prog: String, m: Mem) = run(prog, 0, 0, m) |
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88 |
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89 // some sample programs collected from the Internet |
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90 //================================================== |
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91 |
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92 |
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93 /* |
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94 // first some contrived (small) programs |
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95 |
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96 // clears the 0-cell |
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97 start("[-]", Map(0 -> 100)) |
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98 |
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99 // copies content of the 0-cell to 1-cell |
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100 start("[->+<]", Map(0 -> 10)) |
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101 |
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102 // copies content of the 0-cell to 2-cell and 4-cell |
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103 start("[>>+>>+<<<<-]", Map(0 -> 42)) |
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104 |
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105 |
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106 // prints out numbers 0 to 9 |
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107 start("""+++++[->++++++++++<]>--<+++[->>++++++++++<<]>>++<<----------[+>.>.<+<]""", Map()) |
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108 |
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109 |
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110 // some more "useful" programs |
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111 |
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112 // hello world program 1 |
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113 start("""++++++++[>++++[>++>+++>+++>+<<<<-]>+>+>->>+[<]<-]>>.>---.+++++++ |
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114 ..+++.>>.<-.<.+++.------.--------.>>+.>++.""", Map()) |
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115 |
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116 // hello world program 2 |
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117 start("""++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>+ |
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118 +.<<+++++++++++++++.>.+++.------.--------.>+.>.""", Map()) |
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119 |
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120 |
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121 // draws the Sierpinski triangle |
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122 start("""++++++++[>+>++++<<-]>++>>+<[-[>>+<<-]+>>]>+[-<<<[ |
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123 ->[+[-]+>++>>>-<<]<[<]>>++++++[<<+++++>>-]+<<++.[-]<< |
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124 ]>.>+[>>]>+]""", Map()) |
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125 |
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126 //fibonacci numbers below 100 |
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127 start("""+++++++++++ |
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128 >+>>>>++++++++++++++++++++++++++++++++++++++++++++ |
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129 >++++++++++++++++++++++++++++++++<<<<<<[>[>>>>>>+> |
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130 +<<<<<<<-]>>>>>>>[<<<<<<<+>>>>>>>-]<[>++++++++++[- |
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131 <-[>>+>+<<<-]>>>[<<<+>>>-]+<[>[-]<[-]]>[<<[>>>+<<< |
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132 -]>>[-]]<<]>>>[>>+>+<<<-]>>>[<<<+>>>-]+<[>[-]<[-]] |
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133 >[<<+>>[-]]<<<<<<<]>>>>>[+++++++++++++++++++++++++ |
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134 +++++++++++++++++++++++.[-]]++++++++++<[->-<]>++++ |
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135 ++++++++++++++++++++++++++++++++++++++++++++.[-]<< |
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136 <<<<<<<<<<[>>>+>+<<<<-]>>>>[<<<<+>>>>-]<-[>>.>.<<< |
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137 [-]]<<[>>+>+<<<-]>>>[<<<+>>>-]<<[<+>-]>[<+>-]<<<-]""", Map()) |
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138 |
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139 |
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140 //outputs the square numbers up to 10000 |
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141 start("""++++[>+++++<-]>[<+++++>-]+<+[ |
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142 >[>+>+<<-]++>>[<<+>>-]>>>[-]++>[-]+ |
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143 >>>+[[-]++++++>>>]<<<[[<++++++++<++>>-]+<.<[>----<-]<] |
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144 <<[>>>>>[>>>[-]+++++++++<[>-<-]+++++++++>[-[<->-]+[<<<]]<[>+<-]>]<<-]<<-]""", Map()) |
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145 |
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146 //collatz numbers (need to be typed in) |
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147 start(""">,[[----------[ |
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148 >>>[>>>>]+[[-]+<[->>>>++>>>>+[>>>>]++[->+<<<<<]]<<<] |
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149 ++++++[>------<-]>--[>>[->>>>]+>+[<<<<]>-],<]>]>>>++>+>>[ |
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150 <<[>>>>[-]+++++++++<[>-<-]+++++++++>[-[<->-]+[<<<<]]<[>+<-]>] |
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151 >[>[>>>>]+[[-]<[+[->>>>]>+<]>[<+>[<<<<]]+<<<<]>>>[->>>>]+>+[<<<<]] |
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152 >[[>+>>[<<<<+>>>>-]>]<<<<[-]>[-<<<<]]>>>>>>> |
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153 ]>>+[[-]++++++>>>>]<<<<[[<++++++++>-]<.[-]<[-]<[-]<]<,]""", Map()) |
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154 |
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155 |
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156 // infinite collatz (never stops) |
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157 start(""">>+>+<[[->>[>>]>>>[>>]+[<<]<<<[<<]>[>[>>]>>+>[>>]<+<[<<]<<<[< |
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158 <]>-]>[>>]>>[<<<<[<<]>+>[>>]>>-]<<<<[<<]+>>]<<[+++++[>+++++++ |
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159 +<-]>.<++++++[>--------<-]+<<]>>[>>]+[>>>>[<<+>+>-]<-[>+<-]+< |
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160 [<<->>-[<<+>>[-]]]>>>[<<<+<<+>>>>>-]<<<[>>>+<<<-]<<[[-]>+>>-> |
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161 [<+<[<<+>>-]<[>+<-]<[>+<-]>>>>-]<[>+<-]+<[->[>>]<<[->[<+++>-[ |
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162 <+++>-[<+++>-[<[-]++>>[-]+>+<<-[<+++>-[<+++>-[<[-]+>>>+<<-[<+ |
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163 ++>-[<+++>-]]]]]]]]]<[>+<-]+<<]>>>+<[->[<+>-[<+>-[<+>-[<+>-[< |
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164 +>-[<+>-[<+>-[<+>-[<+>-[<[-]>>[-]+>+<<-[<+>-]]]]]]]]]]]<[>+<- |
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165 ]+>>]<<[<<]>]<[->>[->+>]<[-[<+>-[<->>+<-[<+>-[<->>+<-[<+>-[<- |
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166 >>+<-[<+>-[<->>+<-[<+>-[<->>+<-[<+>-[<->>+<-[<+>-[<->>+<-[<+> |
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167 -[<->>+<-[<+>-[<->>+<-[<+>-]]]]]]]]]]]]]]]]]]]>[<+>-]<+<[<+++ |
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168 +++++++>-]<]>>[<+>->>]<<[>+>+<<-]>[<+>-]+>[<->[-]]<[-<<-]<<[< |
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169 <]]++++++[>+++++++<-]>++.------------.[-]>[>>]<<[+++++[>+++++ |
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170 +++<-]>.<++++++[>--------<-]+<<]+<]>[<+>-]<]>>>[>>]<<[>[-]<-< |
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171 <]++++++++++.[-]<<<[<<]>>>+<[->[<+>-[<+>-[<+>-[<+>-[<+>-[<+>- |
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172 [<+>-[<+>-[<+>-[<[-]>>[-]+>+<<-]]]]]]]]]]<[>+<-]+>>]<<[<<]>>]""", Map()) |
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173 |
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174 |
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175 start("""+++++[>+++++++++<-],[[>--.++>+<<-]>+.->[<.>-]<<,]""", Map()) |
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176 |
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177 */ |
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178 |
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179 |
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180 def splice(cs: List[Char], acc: List[(Char, Int)]) : List[(Char, Int)] = (cs, acc) match { |
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181 case (Nil, acc) => acc |
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182 case (c :: cs, Nil) => splice(cs, List((c, 1))) |
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183 case (c :: cs, (d, n) :: acc) => |
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184 if (c == d) splice(cs, (c, n + 1) :: acc) |
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185 else splice(cs, (c, 1) :: (d, n) :: acc) |
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186 } |
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187 |
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188 def spl(s: String) = splice(s.toList, Nil).reverse |
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189 |
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190 |
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191 // simple instructions |
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192 def instr(c: Char) : String = c match { |
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193 case '>' => "ptr++;" |
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194 case '<' => "ptr--;" |
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195 case '+' => "(*ptr)++;" |
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196 case '-' => "(*ptr)--;" |
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197 case '.' => "putchar(*ptr);" |
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198 case ',' => "*ptr = getchar();\n" |
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199 case '[' => "while(*ptr){" |
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200 case ']' => "}" |
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201 case _ => "" |
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202 } |
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203 |
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204 def instrs(prog: String) : String = |
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205 prog.toList.map(instr(_)).mkString |
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206 |
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207 |
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208 //optimised instructions |
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209 |
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210 def instr2(c: Char, n: Int) : String = c match { |
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211 case '>' => "ptr += " + n.toString + ";" |
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212 case '<' => "ptr -= " + n.toString + ";" |
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213 case '+' => "(*ptr) += " + n.toString + ";" |
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214 case '-' => "(*ptr) -= " + n.toString + ";" |
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215 case '.' => "putchar(*ptr);" * n |
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216 case ',' => "*ptr = getchar();\n" * n |
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217 case '[' => "while(*ptr){" * n |
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218 case ']' => "}" * n |
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219 case _ => "" |
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220 } |
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221 |
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222 def instrs2(prog: String) : String = |
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223 spl(prog).map{ case (c, n) => instr2(c, n) }.mkString |
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224 |
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225 |
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226 // peephole optimisers are at |
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227 // https://github.com/Wilfred/bfc#peephole-optimisations |
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228 // http://calmerthanyouare.org/2015/01/07/optimizing-brainfuck.html |
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229 |
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230 def compile_str(prog: String) : String = { |
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231 "#include <string.h>\n" ++ |
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232 "#include <stdio.h>\n" ++ |
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233 "char field[30000];\n" ++ |
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234 "char *ptr = &field[15000];" ++ |
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235 "int main()\n{\n" ++ |
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236 "memset(field, '\\0', 30000);\n" ++ |
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237 instrs2(prog) ++ |
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238 "\n return 0;\n}" |
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239 } |
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240 |
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241 def compile(name: String, prog: String) = { |
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242 val fw = new java.io.FileWriter(name + ".c") |
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243 val is = compile_str(prog) |
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244 println(is) |
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245 fw.write(is) |
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246 fw.close() |
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247 } |
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248 |
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249 import sys.process._ |
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250 |
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251 def compile_run(prog: String) = { |
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252 compile("tmp", prog) |
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253 "gcc -O3 -o tmp tmp.c".! |
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254 "./tmp".! |
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255 () |
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256 } |
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257 |
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258 |
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259 compile("test.bf", """++++++++[>++++[>++>+++>+++>+<<<<-]>+>+>->>+[<]<-]>>.>---.+++++++ |
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260 ..+++.>>.<-.<.+++.------.--------.>>+.>++.""") |
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261 |
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262 compile_run("""++++++++[>+>++++<<-]>++>>+<[-[>>+<<-]+>>]>+[-<<<[ |
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263 ->[+[-]+>++>>>-<<]<[<]>>++++++[<<+++++>>-]+<<++.[-]<< |
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264 ]>.>+[>>]>+]""") |
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265 |
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266 compile_run(""" A mandelbrot set fractal viewer in brainf*** written by Erik Bosman |
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267 +++++++++++++[->++>>>+++++>++>+<<<<<<]>>>>>++++++>--->>>>>>>>>>+++++++++++++++[[ |
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268 >>>>>>>>>]+[<<<<<<<<<]>>>>>>>>>-]+[>>>>>>>>[-]>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>[-]+ |
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269 <<<<<<<+++++[-[->>>>>>>>>+<<<<<<<<<]>>>>>>>>>]>>>>>>>+>>>>>>>>>>>>>>>>>>>>>>>>>> |
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270 >+<<<<<<<<<<<<<<<<<[<<<<<<<<<]>>>[-]+[>>>>>>[>>>>>>>[-]>>]<<<<<<<<<[<<<<<<<<<]>> |
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271 >>>>>[-]+<<<<<<++++[-[->>>>>>>>>+<<<<<<<<<]>>>>>>>>>]>>>>>>+<<<<<<+++++++[-[->>> |
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272 >>>>>>+<<<<<<<<<]>>>>>>>>>]>>>>>>+<<<<<<<<<<<<<<<<[<<<<<<<<<]>>>[[-]>>>>>>[>>>>> |
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273 >>[-<<<<<<+>>>>>>]<<<<<<[->>>>>>+<<+<<<+<]>>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>> |
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274 [>>>>>>>>[-<<<<<<<+>>>>>>>]<<<<<<<[->>>>>>>+<<+<<<+<<]>>>>>>>>]<<<<<<<<<[<<<<<<< |
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275 <<]>>>>>>>[-<<<<<<<+>>>>>>>]<<<<<<<[->>>>>>>+<<+<<<<<]>>>>>>>>>+++++++++++++++[[ |
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276 >>>>>>>>>]+>[-]>[-]>[-]>[-]>[-]>[-]>[-]>[-]>[-]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>-]+[ |
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277 >+>>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>[>->>>>[-<<<<+>>>>]<<<<[->>>>+<<<<<[->>[ |
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278 -<<+>>]<<[->>+>>+<<<<]+>>>>>>>>>]<<<<<<<<[<<<<<<<<<]]>>>>>>>>>[>>>>>>>>>]<<<<<<< |
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279 <<[>[->>>>>>>>>+<<<<<<<<<]<<<<<<<<<<]>[->>>>>>>>>+<<<<<<<<<]<+>>>>>>>>]<<<<<<<<< |
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280 [>[-]<->>>>[-<<<<+>[<->-<<<<<<+>>>>>>]<[->+<]>>>>]<<<[->>>+<<<]<+<<<<<<<<<]>>>>> |
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281 >>>>[>+>>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>[>->>>>>[-<<<<<+>>>>>]<<<<<[->>>>>+ |
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282 <<<<<<[->>>[-<<<+>>>]<<<[->>>+>+<<<<]+>>>>>>>>>]<<<<<<<<[<<<<<<<<<]]>>>>>>>>>[>> |
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283 >>>>>>>]<<<<<<<<<[>>[->>>>>>>>>+<<<<<<<<<]<<<<<<<<<<<]>>[->>>>>>>>>+<<<<<<<<<]<< |
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284 +>>>>>>>>]<<<<<<<<<[>[-]<->>>>[-<<<<+>[<->-<<<<<<+>>>>>>]<[->+<]>>>>]<<<[->>>+<< |
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285 <]<+<<<<<<<<<]>>>>>>>>>[>>>>[-<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<+>>>>>>>>>>>>> |
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286 >>>>>>>>>>>>>>>>>>>>>>>]>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>+++++++++++++++[[>>>> |
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287 >>>>>]<<<<<<<<<-<<<<<<<<<[<<<<<<<<<]>>>>>>>>>-]+>>>>>>>>>>>>>>>>>>>>>+<<<[<<<<<< |
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288 <<<]>>>>>>>>>[>>>[-<<<->>>]+<<<[->>>->[-<<<<+>>>>]<<<<[->>>>+<<<<<<<<<<<<<[<<<<< |
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289 <<<<]>>>>[-]+>>>>>[>>>>>>>>>]>+<]]+>>>>[-<<<<->>>>]+<<<<[->>>>-<[-<<<+>>>]<<<[-> |
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290 >>+<<<<<<<<<<<<[<<<<<<<<<]>>>[-]+>>>>>>[>>>>>>>>>]>[-]+<]]+>[-<[>>>>>>>>>]<<<<<< |
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291 <<]>>>>>>>>]<<<<<<<<<[<<<<<<<<<]<<<<<<<[->+>>>-<<<<]>>>>>>>>>+++++++++++++++++++ |
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292 +++++++>>[-<<<<+>>>>]<<<<[->>>>+<<[-]<<]>>[<<<<<<<+<[-<+>>>>+<<[-]]>[-<<[->+>>>- |
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293 <<<<]>>>]>>>>>>>>>>>>>[>>[-]>[-]>[-]>>>>>]<<<<<<<<<[<<<<<<<<<]>>>[-]>>>>>>[>>>>> |
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294 [-<<<<+>>>>]<<<<[->>>>+<<<+<]>>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>[>>[-<<<<<<<< |
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295 <+>>>>>>>>>]>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>+++++++++++++++[[>>>>>>>>>]+>[- |
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296 ]>[-]>[-]>[-]>[-]>[-]>[-]>[-]>[-]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>-]+[>+>>>>>>>>]<<< |
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297 <<<<<<[<<<<<<<<<]>>>>>>>>>[>->>>>>[-<<<<<+>>>>>]<<<<<[->>>>>+<<<<<<[->>[-<<+>>]< |
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298 <[->>+>+<<<]+>>>>>>>>>]<<<<<<<<[<<<<<<<<<]]>>>>>>>>>[>>>>>>>>>]<<<<<<<<<[>[->>>> |
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299 >>>>>+<<<<<<<<<]<<<<<<<<<<]>[->>>>>>>>>+<<<<<<<<<]<+>>>>>>>>]<<<<<<<<<[>[-]<->>> |
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300 [-<<<+>[<->-<<<<<<<+>>>>>>>]<[->+<]>>>]<<[->>+<<]<+<<<<<<<<<]>>>>>>>>>[>>>>>>[-< |
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301 <<<<+>>>>>]<<<<<[->>>>>+<<<<+<]>>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>[>+>>>>>>>> |
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302 ]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>[>->>>>>[-<<<<<+>>>>>]<<<<<[->>>>>+<<<<<<[->>[-<<+ |
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303 >>]<<[->>+>>+<<<<]+>>>>>>>>>]<<<<<<<<[<<<<<<<<<]]>>>>>>>>>[>>>>>>>>>]<<<<<<<<<[> |
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304 [->>>>>>>>>+<<<<<<<<<]<<<<<<<<<<]>[->>>>>>>>>+<<<<<<<<<]<+>>>>>>>>]<<<<<<<<<[>[- |
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305 ]<->>>>[-<<<<+>[<->-<<<<<<+>>>>>>]<[->+<]>>>>]<<<[->>>+<<<]<+<<<<<<<<<]>>>>>>>>> |
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306 [>>>>[-<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<+>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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307 ]>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>[>>>[-<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<+> |
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308 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>]>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>++++++++ |
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309 +++++++[[>>>>>>>>>]<<<<<<<<<-<<<<<<<<<[<<<<<<<<<]>>>>>>>>>-]+[>>>>>>>>[-<<<<<<<+ |
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310 >>>>>>>]<<<<<<<[->>>>>>>+<<<<<<+<]>>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>[>>>>>>[ |
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311 -]>>>]<<<<<<<<<[<<<<<<<<<]>>>>+>[-<-<<<<+>>>>>]>[-<<<<<<[->>>>>+<++<<<<]>>>>>[-< |
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312 <<<<+>>>>>]<->+>]<[->+<]<<<<<[->>>>>+<<<<<]>>>>>>[-]<<<<<<+>>>>[-<<<<->>>>]+<<<< |
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313 [->>>>->>>>>[>>[-<<->>]+<<[->>->[-<<<+>>>]<<<[->>>+<<<<<<<<<<<<[<<<<<<<<<]>>>[-] |
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314 +>>>>>>[>>>>>>>>>]>+<]]+>>>[-<<<->>>]+<<<[->>>-<[-<<+>>]<<[->>+<<<<<<<<<<<[<<<<< |
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315 <<<<]>>>>[-]+>>>>>[>>>>>>>>>]>[-]+<]]+>[-<[>>>>>>>>>]<<<<<<<<]>>>>>>>>]<<<<<<<<< |
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316 [<<<<<<<<<]>>>>[-<<<<+>>>>]<<<<[->>>>+>>>>>[>+>>[-<<->>]<<[->>+<<]>>>>>>>>]<<<<< |
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317 <<<+<[>[->>>>>+<<<<[->>>>-<<<<<<<<<<<<<<+>>>>>>>>>>>[->>>+<<<]<]>[->>>-<<<<<<<<< |
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318 <<<<<+>>>>>>>>>>>]<<]>[->>>>+<<<[->>>-<<<<<<<<<<<<<<+>>>>>>>>>>>]<]>[->>>+<<<]<< |
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319 <<<<<<<<<<]>>>>[-]<<<<]>>>[-<<<+>>>]<<<[->>>+>>>>>>[>+>[-<->]<[->+<]>>>>>>>>]<<< |
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320 <<<<<+<[>[->>>>>+<<<[->>>-<<<<<<<<<<<<<<+>>>>>>>>>>[->>>>+<<<<]>]<[->>>>-<<<<<<< |
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321 <<<<<<<+>>>>>>>>>>]<]>>[->>>+<<<<[->>>>-<<<<<<<<<<<<<<+>>>>>>>>>>]>]<[->>>>+<<<< |
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322 ]<<<<<<<<<<<]>>>>>>+<<<<<<]]>>>>[-<<<<+>>>>]<<<<[->>>>+>>>>>[>>>>>>>>>]<<<<<<<<< |
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323 [>[->>>>>+<<<<[->>>>-<<<<<<<<<<<<<<+>>>>>>>>>>>[->>>+<<<]<]>[->>>-<<<<<<<<<<<<<< |
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324 +>>>>>>>>>>>]<<]>[->>>>+<<<[->>>-<<<<<<<<<<<<<<+>>>>>>>>>>>]<]>[->>>+<<<]<<<<<<< |
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325 <<<<<]]>[-]>>[-]>[-]>>>>>[>>[-]>[-]>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>[>>>>>[-< |
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326 <<<+>>>>]<<<<[->>>>+<<<+<]>>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>+++++++++++++++[ |
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327 [>>>>>>>>>]+>[-]>[-]>[-]>[-]>[-]>[-]>[-]>[-]>[-]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>-]+ |
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328 [>+>>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>[>->>>>[-<<<<+>>>>]<<<<[->>>>+<<<<<[->> |
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329 [-<<+>>]<<[->>+>+<<<]+>>>>>>>>>]<<<<<<<<[<<<<<<<<<]]>>>>>>>>>[>>>>>>>>>]<<<<<<<< |
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330 <[>[->>>>>>>>>+<<<<<<<<<]<<<<<<<<<<]>[->>>>>>>>>+<<<<<<<<<]<+>>>>>>>>]<<<<<<<<<[ |
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331 >[-]<->>>[-<<<+>[<->-<<<<<<<+>>>>>>>]<[->+<]>>>]<<[->>+<<]<+<<<<<<<<<]>>>>>>>>>[ |
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332 >>>[-<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<+>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>]> |
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333 >>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>[-]>>>>+++++++++++++++[[>>>>>>>>>]<<<<<<<<<-<<<<< |
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334 <<<<[<<<<<<<<<]>>>>>>>>>-]+[>>>[-<<<->>>]+<<<[->>>->[-<<<<+>>>>]<<<<[->>>>+<<<<< |
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335 <<<<<<<<[<<<<<<<<<]>>>>[-]+>>>>>[>>>>>>>>>]>+<]]+>>>>[-<<<<->>>>]+<<<<[->>>>-<[- |
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336 <<<+>>>]<<<[->>>+<<<<<<<<<<<<[<<<<<<<<<]>>>[-]+>>>>>>[>>>>>>>>>]>[-]+<]]+>[-<[>> |
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337 >>>>>>>]<<<<<<<<]>>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>[-<<<+>>>]<<<[->>>+>>>>>>[>+>>> |
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338 [-<<<->>>]<<<[->>>+<<<]>>>>>>>>]<<<<<<<<+<[>[->+>[-<-<<<<<<<<<<+>>>>>>>>>>>>[-<< |
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339 +>>]<]>[-<<-<<<<<<<<<<+>>>>>>>>>>>>]<<<]>>[-<+>>[-<<-<<<<<<<<<<+>>>>>>>>>>>>]<]> |
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340 [-<<+>>]<<<<<<<<<<<<<]]>>>>[-<<<<+>>>>]<<<<[->>>>+>>>>>[>+>>[-<<->>]<<[->>+<<]>> |
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341 >>>>>>]<<<<<<<<+<[>[->+>>[-<<-<<<<<<<<<<+>>>>>>>>>>>[-<+>]>]<[-<-<<<<<<<<<<+>>>> |
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342 >>>>>>>]<<]>>>[-<<+>[-<-<<<<<<<<<<+>>>>>>>>>>>]>]<[-<+>]<<<<<<<<<<<<]>>>>>+<<<<< |
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343 ]>>>>>>>>>[>>>[-]>[-]>[-]>>>>]<<<<<<<<<[<<<<<<<<<]>>>[-]>[-]>>>>>[>>>>>>>[-<<<<< |
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344 <+>>>>>>]<<<<<<[->>>>>>+<<<<+<<]>>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>+>[-<-<<<<+>>>> |
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345 >]>>[-<<<<<<<[->>>>>+<++<<<<]>>>>>[-<<<<<+>>>>>]<->+>>]<<[->>+<<]<<<<<[->>>>>+<< |
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346 <<<]+>>>>[-<<<<->>>>]+<<<<[->>>>->>>>>[>>>[-<<<->>>]+<<<[->>>-<[-<<+>>]<<[->>+<< |
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347 <<<<<<<<<[<<<<<<<<<]>>>>[-]+>>>>>[>>>>>>>>>]>+<]]+>>[-<<->>]+<<[->>->[-<<<+>>>]< |
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348 <<[->>>+<<<<<<<<<<<<[<<<<<<<<<]>>>[-]+>>>>>>[>>>>>>>>>]>[-]+<]]+>[-<[>>>>>>>>>]< |
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349 <<<<<<<]>>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>[-<<<+>>>]<<<[->>>+>>>>>>[>+>[-<->]<[->+ |
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350 <]>>>>>>>>]<<<<<<<<+<[>[->>>>+<<[->>-<<<<<<<<<<<<<+>>>>>>>>>>[->>>+<<<]>]<[->>>- |
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351 <<<<<<<<<<<<<+>>>>>>>>>>]<]>>[->>+<<<[->>>-<<<<<<<<<<<<<+>>>>>>>>>>]>]<[->>>+<<< |
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352 ]<<<<<<<<<<<]>>>>>[-]>>[-<<<<<<<+>>>>>>>]<<<<<<<[->>>>>>>+<<+<<<<<]]>>>>[-<<<<+> |
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353 >>>]<<<<[->>>>+>>>>>[>+>>[-<<->>]<<[->>+<<]>>>>>>>>]<<<<<<<<+<[>[->>>>+<<<[->>>- |
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354 <<<<<<<<<<<<<+>>>>>>>>>>>[->>+<<]<]>[->>-<<<<<<<<<<<<<+>>>>>>>>>>>]<<]>[->>>+<<[ |
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355 ->>-<<<<<<<<<<<<<+>>>>>>>>>>>]<]>[->>+<<]<<<<<<<<<<<<]]>>>>[-]<<<<]>>>>[-<<<<+>> |
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356 >>]<<<<[->>>>+>[-]>>[-<<<<<<<+>>>>>>>]<<<<<<<[->>>>>>>+<<+<<<<<]>>>>>>>>>[>>>>>> |
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357 >>>]<<<<<<<<<[>[->>>>+<<<[->>>-<<<<<<<<<<<<<+>>>>>>>>>>>[->>+<<]<]>[->>-<<<<<<<< |
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358 <<<<<+>>>>>>>>>>>]<<]>[->>>+<<[->>-<<<<<<<<<<<<<+>>>>>>>>>>>]<]>[->>+<<]<<<<<<<< |
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359 <<<<]]>>>>>>>>>[>>[-]>[-]>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>[-]>[-]>>>>>[>>>>>[-<<<<+ |
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360 >>>>]<<<<[->>>>+<<<+<]>>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>[>>>>>>[-<<<<<+>>>>> |
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361 ]<<<<<[->>>>>+<<<+<<]>>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>+++++++++++++++[[>>>> |
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362 >>>>>]+>[-]>[-]>[-]>[-]>[-]>[-]>[-]>[-]>[-]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>-]+[>+>> |
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363 >>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>[>->>>>[-<<<<+>>>>]<<<<[->>>>+<<<<<[->>[-<<+ |
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364 >>]<<[->>+>>+<<<<]+>>>>>>>>>]<<<<<<<<[<<<<<<<<<]]>>>>>>>>>[>>>>>>>>>]<<<<<<<<<[> |
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365 [->>>>>>>>>+<<<<<<<<<]<<<<<<<<<<]>[->>>>>>>>>+<<<<<<<<<]<+>>>>>>>>]<<<<<<<<<[>[- |
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366 ]<->>>>[-<<<<+>[<->-<<<<<<+>>>>>>]<[->+<]>>>>]<<<[->>>+<<<]<+<<<<<<<<<]>>>>>>>>> |
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367 [>+>>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>[>->>>>>[-<<<<<+>>>>>]<<<<<[->>>>>+<<<< |
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368 <<[->>>[-<<<+>>>]<<<[->>>+>+<<<<]+>>>>>>>>>]<<<<<<<<[<<<<<<<<<]]>>>>>>>>>[>>>>>> |
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369 >>>]<<<<<<<<<[>>[->>>>>>>>>+<<<<<<<<<]<<<<<<<<<<<]>>[->>>>>>>>>+<<<<<<<<<]<<+>>> |
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370 >>>>>]<<<<<<<<<[>[-]<->>>>[-<<<<+>[<->-<<<<<<+>>>>>>]<[->+<]>>>>]<<<[->>>+<<<]<+ |
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371 <<<<<<<<<]>>>>>>>>>[>>>>[-<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<+>>>>>>>>>>>>>>>>> |
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372 >>>>>>>>>>>>>>>>>>>]>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>+++++++++++++++[[>>>>>>>> |
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373 >]<<<<<<<<<-<<<<<<<<<[<<<<<<<<<]>>>>>>>>>-]+>>>>>>>>>>>>>>>>>>>>>+<<<[<<<<<<<<<] |
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374 >>>>>>>>>[>>>[-<<<->>>]+<<<[->>>->[-<<<<+>>>>]<<<<[->>>>+<<<<<<<<<<<<<[<<<<<<<<< |
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375 ]>>>>[-]+>>>>>[>>>>>>>>>]>+<]]+>>>>[-<<<<->>>>]+<<<<[->>>>-<[-<<<+>>>]<<<[->>>+< |
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376 <<<<<<<<<<<[<<<<<<<<<]>>>[-]+>>>>>>[>>>>>>>>>]>[-]+<]]+>[-<[>>>>>>>>>]<<<<<<<<]> |
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377 >>>>>>>]<<<<<<<<<[<<<<<<<<<]>>->>[-<<<<+>>>>]<<<<[->>>>+<<[-]<<]>>]<<+>>>>[-<<<< |
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378 ->>>>]+<<<<[->>>>-<<<<<<.>>]>>>>[-<<<<<<<.>>>>>>>]<<<[-]>[-]>[-]>[-]>[-]>[-]>>>[ |
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379 >[-]>[-]>[-]>[-]>[-]>[-]>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>[>>>>>[-]>>>>]<<<<<<<<< |
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380 [<<<<<<<<<]>+++++++++++[-[->>>>>>>>>+<<<<<<<<<]>>>>>>>>>]>>>>+>>>>>>>>>+<<<<<<<< |
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381 <<<<<<[<<<<<<<<<]>>>>>>>[-<<<<<<<+>>>>>>>]<<<<<<<[->>>>>>>+[-]>>[>>>>>>>>>]<<<<< |
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382 <<<<[>>>>>>>[-<<<<<<+>>>>>>]<<<<<<[->>>>>>+<<<<<<<[<<<<<<<<<]>>>>>>>[-]+>>>]<<<< |
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383 <<<<<<]]>>>>>>>[-<<<<<<<+>>>>>>>]<<<<<<<[->>>>>>>+>>[>+>>>>[-<<<<->>>>]<<<<[->>> |
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384 >+<<<<]>>>>>>>>]<<+<<<<<<<[>>>>>[->>+<<]<<<<<<<<<<<<<<]>>>>>>>>>[>>>>>>>>>]<<<<< |
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385 <<<<[>[-]<->>>>>>>[-<<<<<<<+>[<->-<<<+>>>]<[->+<]>>>>>>>]<<<<<<[->>>>>>+<<<<<<]< |
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386 +<<<<<<<<<]>>>>>>>-<<<<[-]+<<<]+>>>>>>>[-<<<<<<<->>>>>>>]+<<<<<<<[->>>>>>>->>[>> |
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387 >>>[->>+<<]>>>>]<<<<<<<<<[>[-]<->>>>>>>[-<<<<<<<+>[<->-<<<+>>>]<[->+<]>>>>>>>]<< |
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388 <<<<[->>>>>>+<<<<<<]<+<<<<<<<<<]>+++++[-[->>>>>>>>>+<<<<<<<<<]>>>>>>>>>]>>>>+<<< |
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389 <<[<<<<<<<<<]>>>>>>>>>[>>>>>[-<<<<<->>>>>]+<<<<<[->>>>>->>[-<<<<<<<+>>>>>>>]<<<< |
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390 <<<[->>>>>>>+<<<<<<<<<<<<<<<<[<<<<<<<<<]>>>>[-]+>>>>>[>>>>>>>>>]>+<]]+>>>>>>>[-< |
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391 <<<<<<->>>>>>>]+<<<<<<<[->>>>>>>-<<[-<<<<<+>>>>>]<<<<<[->>>>>+<<<<<<<<<<<<<<[<<< |
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392 <<<<<<]>>>[-]+>>>>>>[>>>>>>>>>]>[-]+<]]+>[-<[>>>>>>>>>]<<<<<<<<]>>>>>>>>]<<<<<<< |
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393 <<[<<<<<<<<<]>>>>[-]<<<+++++[-[->>>>>>>>>+<<<<<<<<<]>>>>>>>>>]>>>>-<<<<<[<<<<<<< |
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394 <<]]>>>]<<<<.>>>>>>>>>>[>>>>>>[-]>>>]<<<<<<<<<[<<<<<<<<<]>++++++++++[-[->>>>>>>> |
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395 >+<<<<<<<<<]>>>>>>>>>]>>>>>+>>>>>>>>>+<<<<<<<<<<<<<<<[<<<<<<<<<]>>>>>>>>[-<<<<<< |
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396 <<+>>>>>>>>]<<<<<<<<[->>>>>>>>+[-]>[>>>>>>>>>]<<<<<<<<<[>>>>>>>>[-<<<<<<<+>>>>>> |
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397 >]<<<<<<<[->>>>>>>+<<<<<<<<[<<<<<<<<<]>>>>>>>>[-]+>>]<<<<<<<<<<]]>>>>>>>>[-<<<<< |
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398 <<<+>>>>>>>>]<<<<<<<<[->>>>>>>>+>[>+>>>>>[-<<<<<->>>>>]<<<<<[->>>>>+<<<<<]>>>>>> |
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399 >>]<+<<<<<<<<[>>>>>>[->>+<<]<<<<<<<<<<<<<<<]>>>>>>>>>[>>>>>>>>>]<<<<<<<<<[>[-]<- |
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400 >>>>>>>>[-<<<<<<<<+>[<->-<<+>>]<[->+<]>>>>>>>>]<<<<<<<[->>>>>>>+<<<<<<<]<+<<<<<< |
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401 <<<]>>>>>>>>-<<<<<[-]+<<<]+>>>>>>>>[-<<<<<<<<->>>>>>>>]+<<<<<<<<[->>>>>>>>->[>>> |
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402 >>>[->>+<<]>>>]<<<<<<<<<[>[-]<->>>>>>>>[-<<<<<<<<+>[<->-<<+>>]<[->+<]>>>>>>>>]<< |
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403 <<<<<[->>>>>>>+<<<<<<<]<+<<<<<<<<<]>+++++[-[->>>>>>>>>+<<<<<<<<<]>>>>>>>>>]>>>>> |
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404 +>>>>>>>>>>>>>>>>>>>>>>>>>>>+<<<<<<[<<<<<<<<<]>>>>>>>>>[>>>>>>[-<<<<<<->>>>>>]+< |
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405 <<<<<[->>>>>>->>[-<<<<<<<<+>>>>>>>>]<<<<<<<<[->>>>>>>>+<<<<<<<<<<<<<<<<<[<<<<<<< |
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406 <<]>>>>[-]+>>>>>[>>>>>>>>>]>+<]]+>>>>>>>>[-<<<<<<<<->>>>>>>>]+<<<<<<<<[->>>>>>>> |
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407 -<<[-<<<<<<+>>>>>>]<<<<<<[->>>>>>+<<<<<<<<<<<<<<<[<<<<<<<<<]>>>[-]+>>>>>>[>>>>>> |
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408 >>>]>[-]+<]]+>[-<[>>>>>>>>>]<<<<<<<<]>>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>[-]<<<++++ |
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409 +[-[->>>>>>>>>+<<<<<<<<<]>>>>>>>>>]>>>>>->>>>>>>>>>>>>>>>>>>>>>>>>>>-<<<<<<[<<<< |
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410 <<<<<]]>>>]""") |
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411 |
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412 compile_run(""" |
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413 >+>+>+>+>++<[>[<+++>- |
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414 |
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415 >>>>> |
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416 >+>+>+>+>++<[>[<+++>- |
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417 |
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418 >>>>> |
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419 >+>+>+>+>++<[>[<+++>- |
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420 |
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421 >>>>> |
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422 >+>+>+>+>++<[>[<+++>- |
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423 |
|
424 >>>>> |
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425 +++[->+++++<]>[-]< |
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426 <<<<< |
|
427 |
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428 ]<<]>[-] |
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429 <<<<< |
|
430 |
|
431 ]<<]>[-] |
|
432 <<<<< |
|
433 |
|
434 ]<<]>[-] |
|
435 <<<<< |
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436 |
|
437 ]<<]>.""") |
|
438 |
|
439 // benchmarks |
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440 compile_run(""">++[<+++++++++++++>-]<[[>+>+<<-]>[<+>-]++++++++ |
|
441 [>++++++++<-]>.[-]<<>++++++++++[>++++++++++[>++ |
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442 ++++++++[>++++++++++[>++++++++++[>++++++++++[>+ |
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443 +++++++++[-]<-]<-]<-]<-]<-]<-]<-]++++++++++.""") |
|
444 |
|
445 // |
|
446 compile_run("""++++[>++++<-]>[>+>++>[+++++++>]+++[<]>-]>>>>>>>>-. |
|
447 <<<<.<..+++.<.>>>>.<<<.+++.------.>-.<<+.<------.""") |
|
448 |
|
449 compile_run("""++++++++[->-[->-[->-[-]<]<]<] |
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450 >++++++++[<++++++++++>-]<[>+>+<<-]>-.>-----.>""") |
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451 |
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452 |
|
453 |
|
454 |
|
455 // register to BF compiler |
|
456 // https://gergo.erdi.hu/blog/2010-09-06-from_register_machines_to_brainfuck,_part_1/ |
|
457 } |
|