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annotate Bison-Flex/BasicCompiler-MemoryBase/vm.cpp @ 4:805d39d28230

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add Compiler-stackbase
author nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
date Tue, 17 May 2011 08:00:38 +0900
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805d39d28230 add Compiler-stackbase
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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1 //
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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2 // 仮想CPU
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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3 //
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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4 // switch-caseでの実装例
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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5 //
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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6 // (c)2007 Chihiro.SAKAMOTO HyperWorks
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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7 //
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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8 #include <exception>
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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9 #include "vm.h"
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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10
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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11 // 実行
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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12 int vm::vcpu::run()
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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13 {
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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14 command_ = data_.command_; // プログラム格納位置
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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15 command_size_ = data_.command_size_; // プログラムの大きさ
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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16
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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17 global_value.resize(data_.value_size_); // 外部変数テーブル確保
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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18 command_ptr_ = command_; // プログラムカウンター初期化
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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19
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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20 try {
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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21 while (*command_ptr_ != VM_HALT) { // Haltするまでループ
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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22 int op = *command_ptr_++;
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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23 switch (op) {
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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24 #define VM_SWITCHTABLE
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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25 #include "vm_code.h"
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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26 #undef VM_SWITCHTABLE
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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27 } ;
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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28 }
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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29 }
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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30 catch (const std::exception &e) {
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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31 std::cerr << "例外発生（" << e.what() << "）" << std::endl;
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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32 return -1;
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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33 }
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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34 return 0;
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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35 }