|
2
|
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
|
