mirror of
https://github.com/Ryujinx/Ryujinx.git
synced 2024-08-19 23:28:42 +02:00
* Implement a new physical memory manager and replace DeviceMemory * Proper generic constraints * Fix debug build * Add memory tests * New CPU memory manager and general code cleanup * Remove host memory management from CPU project, use Ryujinx.Memory instead * Fix tests * Document exceptions on MemoryBlock * Fix leak on unix memory allocation * Proper disposal of some objects on tests * Fix JitCache not being set as initialized * GetRef without checks for 8-bits and 16-bits CAS * Add MemoryBlock destructor * Throw in separate method to improve codegen * Address PR feedback * QueryModified improvements * Fix memory write tracking not marking all pages as modified in some cases * Simplify MarkRegionAsModified * Remove XML doc for ghost param * Add back optimization to avoid useless buffer updates * Add Ryujinx.Cpu project, move MemoryManager there and remove MemoryBlockWrapper * Some nits * Do not perform address translation when size is 0 * Address PR feedback and format NativeInterface class * Remove ghost parameter description * Update Ryujinx.Cpu to .NET Core 3.1 * Address PR feedback * Fix build * Return a well defined value for GetPhysicalAddress with invalid VA, and do not return unmapped ranges as modified * Typo
73 lines
2 KiB
C#
73 lines
2 KiB
C#
using System;
|
|
using System.IO;
|
|
using System.Runtime.InteropServices;
|
|
using System.Text;
|
|
|
|
namespace Ryujinx.Cpu
|
|
{
|
|
public static class MemoryHelper
|
|
{
|
|
public static void FillWithZeros(MemoryManager memory, long position, int size)
|
|
{
|
|
int size8 = size & ~(8 - 1);
|
|
|
|
for (int offs = 0; offs < size8; offs += 8)
|
|
{
|
|
memory.Write<long>((ulong)(position + offs), 0);
|
|
}
|
|
|
|
for (int offs = size8; offs < (size - size8); offs++)
|
|
{
|
|
memory.Write<byte>((ulong)(position + offs), 0);
|
|
}
|
|
}
|
|
|
|
public unsafe static T Read<T>(MemoryManager memory, long position) where T : struct
|
|
{
|
|
long size = Marshal.SizeOf<T>();
|
|
|
|
byte[] data = new byte[size];
|
|
|
|
memory.Read((ulong)position, data);
|
|
|
|
fixed (byte* ptr = data)
|
|
{
|
|
return Marshal.PtrToStructure<T>((IntPtr)ptr);
|
|
}
|
|
}
|
|
|
|
public unsafe static void Write<T>(MemoryManager memory, long position, T value) where T : struct
|
|
{
|
|
long size = Marshal.SizeOf<T>();
|
|
|
|
byte[] data = new byte[size];
|
|
|
|
fixed (byte* ptr = data)
|
|
{
|
|
Marshal.StructureToPtr<T>(value, (IntPtr)ptr, false);
|
|
}
|
|
|
|
memory.Write((ulong)position, data);
|
|
}
|
|
|
|
public static string ReadAsciiString(MemoryManager memory, long position, long maxSize = -1)
|
|
{
|
|
using (MemoryStream ms = new MemoryStream())
|
|
{
|
|
for (long offs = 0; offs < maxSize || maxSize == -1; offs++)
|
|
{
|
|
byte value = memory.Read<byte>((ulong)(position + offs));
|
|
|
|
if (value == 0)
|
|
{
|
|
break;
|
|
}
|
|
|
|
ms.WriteByte(value);
|
|
}
|
|
|
|
return Encoding.ASCII.GetString(ms.ToArray());
|
|
}
|
|
}
|
|
}
|
|
} |