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Ryujinx/Ryujinx.HLE/HOS/Kernel/Memory/KMemoryRegionBlock.cs

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namespace Ryujinx.HLE.HOS.Kernel.Memory
{
class KMemoryRegionBlock
{
public long[][] Masks;
public ulong FreeCount;
public int MaxLevel;
public ulong StartAligned;
public ulong SizeInBlocksTruncated;
public ulong SizeInBlocksRounded;
public int Order;
public int NextOrder;
public bool TryCoalesce(int index, int size)
{
long mask = ((1L << size) - 1) << (index & 63);
index /= 64;
if ((mask & ~Masks[MaxLevel - 1][index]) != 0)
{
return false;
}
Masks[MaxLevel - 1][index] &= ~mask;
for (int level = MaxLevel - 2; level >= 0; level--, index /= 64)
{
Masks[level][index / 64] &= ~(1L << (index & 63));
if (Masks[level][index / 64] != 0)
{
break;
}
}
FreeCount -= (ulong)size;
return true;
}
}
}