diff options
Diffstat (limited to 'Ryujinx.HLE/HOS/Kernel/Memory/KMemoryRegionBlock.cs')
| -rw-r--r-- | Ryujinx.HLE/HOS/Kernel/Memory/KMemoryRegionBlock.cs | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/Ryujinx.HLE/HOS/Kernel/Memory/KMemoryRegionBlock.cs b/Ryujinx.HLE/HOS/Kernel/Memory/KMemoryRegionBlock.cs new file mode 100644 index 00000000..3334ff43 --- /dev/null +++ b/Ryujinx.HLE/HOS/Kernel/Memory/KMemoryRegionBlock.cs @@ -0,0 +1,43 @@ +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; + } + } +}
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