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comparison Jint.Runtime/VM2/Machine.cs @ 2:4aed85a1f558

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implemented simple vm2
author cin
date Fri, 25 Oct 2013 15:52:16 +0400
parents 033ebe7432d5
children
comparison
equal deleted inserted replaced
1:033ebe7432d5 2:4aed85a1f558
4 namespace Jint.Runtime.VM2 4 namespace Jint.Runtime.VM2
5 { 5 {
6 public class Machine 6 public class Machine
7 { 7 {
8 RuntimeContext m_context; 8 RuntimeContext m_context;
9 Stack<object[]> m_frames; 9 //Stack<object[]> m_frames;
10 object[] m_frame; 10 Box[] m_frame;
11 11
12 12
13 public Machine () 13 public Machine ()
14 { 14 {
15 m_context = new RuntimeContext ();
16 }
17
18 public void InitFrame(object[] values) {
19 m_frame = new Box[values.Length];
20 for(int i = 0; i< values.Length; i++)
21 m_frame[i] = m_context.PackValue(values[i]);
15 } 22 }
16 23
17 public void Execute(Instruction[] instructions) { 24 public void Execute(Instruction[] instructions) {
18 foreach (var op in instructions) { 25 foreach (var op in instructions) {
19 26 m_frame [op.dest].value = m_frame [op.args [0]].impl [(int)op.code](MakeArgs(op.args));
20 } 27 }
21 } 28 }
22 29
23 private object[] MakeArgs(int[] regs) { 30 private object[] MakeArgs(int[] regs) {
24 object[] args = new object[regs.Length]; 31 object[] args = new object[regs.Length];
25 for (int i=0; i< regs.Length; i++) 32 for (int i=0; i< regs.Length; i++)
26 args = m_frame [regs [i]]; 33 args[i] = m_frame [regs [i]].value;
34 return args;
35 }
36
37 public object Get(int index) {
38 return m_frame [index];
27 } 39 }
28 } 40 }
29 } 41 }
30 42