diff options
| author | TSR Berry <20988865+TSRBerry@users.noreply.github.com> | 2023-04-08 01:22:00 +0200 |
|---|---|---|
| committer | Mary <thog@protonmail.com> | 2023-04-27 23:51:14 +0200 |
| commit | cee712105850ac3385cd0091a923438167433f9f (patch) | |
| tree | 4a5274b21d8b7f938c0d0ce18736d3f2993b11b1 /src/Ryujinx.Memory/Range/MemoryRange.cs | |
| parent | cd124bda587ef09668a971fa1cac1c3f0cfc9f21 (diff) | |
Move solution and projects to src
Diffstat (limited to 'src/Ryujinx.Memory/Range/MemoryRange.cs')
| -rw-r--r-- | src/Ryujinx.Memory/Range/MemoryRange.cs | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/src/Ryujinx.Memory/Range/MemoryRange.cs b/src/Ryujinx.Memory/Range/MemoryRange.cs new file mode 100644 index 00000000..7465fbcb --- /dev/null +++ b/src/Ryujinx.Memory/Range/MemoryRange.cs @@ -0,0 +1,61 @@ +namespace Ryujinx.Memory.Range +{ + /// <summary> + /// Range of memory composed of an address and size. + /// </summary> + public readonly record struct MemoryRange + { + /// <summary> + /// An empty memory range, with a null address and zero size. + /// </summary> + public static MemoryRange Empty => new MemoryRange(0UL, 0); + + /// <summary> + /// Start address of the range. + /// </summary> + public ulong Address { get; } + + /// <summary> + /// Size of the range in bytes. + /// </summary> + public ulong Size { get; } + + /// <summary> + /// Address where the range ends (exclusive). + /// </summary> + public ulong EndAddress => Address + Size; + + /// <summary> + /// Creates a new memory range with the specified address and size. + /// </summary> + /// <param name="address">Start address</param> + /// <param name="size">Size in bytes</param> + public MemoryRange(ulong address, ulong size) + { + Address = address; + Size = size; + } + + /// <summary> + /// Checks if the range overlaps with another. + /// </summary> + /// <param name="other">The other range to check for overlap</param> + /// <returns>True if the ranges overlap, false otherwise</returns> + public bool OverlapsWith(MemoryRange other) + { + ulong thisAddress = Address; + ulong thisEndAddress = EndAddress; + ulong otherAddress = other.Address; + ulong otherEndAddress = other.EndAddress; + + // If any of the ranges if invalid (address + size overflows), + // then they are never considered to overlap. + if (thisEndAddress < thisAddress || otherEndAddress < otherAddress) + { + return false; + } + + return thisAddress < otherEndAddress && otherAddress < thisEndAddress; + } + } +} |