Mercurial > hg > Members > nobuyasu > myCompiler

comparison Bison-Flex/BasicCompiler-StackBase/UTF8/vm.h @ 2:fbe42292d479

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
upload test
author nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
date Tue, 10 May 2011 06:43:55 +0900
parents
children
comparison
equal deleted inserted replaced
1:a3ea4c73696b 2:fbe42292d479
1 #ifndef __VM_H__
2 #define __VM_H__
3
4 #include <vector>
5 #include "vm_value.h"
6
7 #define VM_ENUMDEF
8 enum {
9 #include "vm_code.h"
10 VM_MAXCOMMAND,
11 } ;
12 #undef VM_ENUMDEF
13
14 namespace vm {
15
16 class data {
17 public:
18 data(): command_(0)
19 {
20 }
21 ~data()
22 {
23 delete[] command_;
24 }
25
26 public:
27 unsigned char *command_; // コマンドテーブル
28 int command_size_; // コマンドサイズ
29 int value_size_; // グローバル変数サイズ
30 } ;
31
32 class vcpu {
33 public:
34 const static int STACK_SIZE = 1000;
35
36 public:
37 vcpu(data &mem)
38 : data_(mem)
39 {
40 }
41 ~vcpu()
42 {
43 }
44
45 int run();
46
47 private:
48 #define VM_EXEC
49 #include "vm_code.h"
50 #undef VM_EXEC
51
52 private:
53 int value() { int v = *(int *)command_ptr_; command_ptr_ += 4; return v; }
54 int addr() const { return (int)(command_ptr_ - command_); }
55 void jmp(int addr) { command_ptr_ = command_ + addr; }
56 void push(int v) { stack.push(v); }
57 void pop() { stack.pop(); }
58 const int top() const { return stack.top(); }
59 int &top() { return stack.top(); }
60
61 private:
62 data &data_;
63 unsigned char *command_;
64 unsigned char *command_ptr_;
65 int command_size_;
66 bool active;
67
68 vm::stack<int, STACK_SIZE> stack;
69 std::vector<int> global_value;
70
71 static void (vcpu::*cmd_[])();
72 } ;
73
74 }
75
76 #endif