diff options
Diffstat (limited to 'Ryujinx.HLE/HOS/Kernel/KMemoryRegionBlock.cs')
| -rw-r--r-- | Ryujinx.HLE/HOS/Kernel/KMemoryRegionBlock.cs | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/Ryujinx.HLE/HOS/Kernel/KMemoryRegionBlock.cs b/Ryujinx.HLE/HOS/Kernel/KMemoryRegionBlock.cs new file mode 100644 index 00000000..1f334e65 --- /dev/null +++ b/Ryujinx.HLE/HOS/Kernel/KMemoryRegionBlock.cs @@ -0,0 +1,43 @@ +namespace Ryujinx.HLE.HOS.Kernel +{ + 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; + } + } +}
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