1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
using System;
using System.Runtime.InteropServices;
namespace Ryujinx.HLE.Memory
{
class DeviceMemory : IDisposable
{
public const long RamSize = 4L * 1024 * 1024 * 1024;
public ArenaAllocator Allocator { get; private set; }
public IntPtr RamPointer { get; private set; }
private unsafe byte* RamPtr;
public unsafe DeviceMemory()
{
Allocator = new ArenaAllocator(RamSize);
RamPointer = Marshal.AllocHGlobal(new IntPtr(RamSize));
RamPtr = (byte*)RamPointer;
}
public sbyte ReadSByte(long Position)
{
return (sbyte)ReadByte(Position);
}
public short ReadInt16(long Position)
{
return (short)ReadUInt16(Position);
}
public int ReadInt32(long Position)
{
return (int)ReadUInt32(Position);
}
public long ReadInt64(long Position)
{
return (long)ReadUInt64(Position);
}
public unsafe byte ReadByte(long Position)
{
return *((byte*)(RamPtr + Position));
}
public unsafe ushort ReadUInt16(long Position)
{
return *((ushort*)(RamPtr + Position));
}
public unsafe uint ReadUInt32(long Position)
{
return *((uint*)(RamPtr + Position));
}
public unsafe ulong ReadUInt64(long Position)
{
return *((ulong*)(RamPtr + Position));
}
public void WriteSByte(long Position, sbyte Value)
{
WriteByte(Position, (byte)Value);
}
public void WriteInt16(long Position, short Value)
{
WriteUInt16(Position, (ushort)Value);
}
public void WriteInt32(long Position, int Value)
{
WriteUInt32(Position, (uint)Value);
}
public void WriteInt64(long Position, long Value)
{
WriteUInt64(Position, (ulong)Value);
}
public unsafe void WriteByte(long Position, byte Value)
{
*((byte*)(RamPtr + Position)) = Value;
}
public unsafe void WriteUInt16(long Position, ushort Value)
{
*((ushort*)(RamPtr + Position)) = Value;
}
public unsafe void WriteUInt32(long Position, uint Value)
{
*((uint*)(RamPtr + Position)) = Value;
}
public unsafe void WriteUInt64(long Position, ulong Value)
{
*((ulong*)(RamPtr + Position)) = Value;
}
public void FillWithZeros(long Position, int Size)
{
int Size8 = Size & ~(8 - 1);
for (int Offs = 0; Offs < Size8; Offs += 8)
{
WriteInt64(Position + Offs, 0);
}
for (int Offs = Size8; Offs < (Size - Size8); Offs++)
{
WriteByte(Position + Offs, 0);
}
}
public void Dispose()
{
Dispose(true);
}
protected virtual void Dispose(bool Disposing)
{
Marshal.FreeHGlobal(RamPointer);
}
}
}
|
