diff options
| author | gdkchan <gab.dark.100@gmail.com> | 2023-01-04 19:15:45 -0300 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-01-04 23:15:45 +0100 |
| commit | 08831eecf77cedd3c4192ebab5a9c485fb15d51e (patch) | |
| tree | 6d95b921a18e9cfa477579fcecb9d041e03d682e /Ryujinx.Common/Utilities/BitfieldExtensions.cs | |
| parent | c6a139a6e7e3ffe1591bc14dafafed60b9bef0dc (diff) | |
IPC refactor part 3+4: New server HIPC message processor (#4188)1.1.506
* IPC refactor part 3 + 4: New server HIPC message processor with source generator based serialization
* Make types match on calls to AlignUp/AlignDown
* Formatting
* Address some PR feedback
* Move BitfieldExtensions to Ryujinx.Common.Utilities and consolidate implementations
* Rename Reader/Writer to SpanReader/SpanWriter and move to Ryujinx.Common.Memory
* Implement EventType
* Address more PR feedback
* Log request processing errors since they are not normal
* Rename waitable to multiwait and add missing lock
* PR feedback
* Ac_K PR feedback
Diffstat (limited to 'Ryujinx.Common/Utilities/BitfieldExtensions.cs')
| -rw-r--r-- | Ryujinx.Common/Utilities/BitfieldExtensions.cs | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/Ryujinx.Common/Utilities/BitfieldExtensions.cs b/Ryujinx.Common/Utilities/BitfieldExtensions.cs new file mode 100644 index 00000000..ca429944 --- /dev/null +++ b/Ryujinx.Common/Utilities/BitfieldExtensions.cs @@ -0,0 +1,57 @@ +using System.Numerics; +using System.Runtime.CompilerServices; + +namespace Ryujinx.Common.Utilities +{ + public static class BitfieldExtensions + { + [MethodImpl(MethodImplOptions.AggressiveInlining)] + public static bool Extract<T>(this T value, int lsb) where T : IBinaryInteger<T> + { + int bitSize = Unsafe.SizeOf<T>() * 8; + lsb &= bitSize - 1; + + return !T.IsZero((value >>> lsb) & T.One); + } + + [MethodImpl(MethodImplOptions.AggressiveInlining)] + public static T Extract<T>(this T value, int lsb, int length) where T : IBinaryInteger<T> + { + int bitSize = Unsafe.SizeOf<T>() * 8; + lsb &= bitSize - 1; + + return (value >>> lsb) & (~T.Zero >>> (bitSize - length)); + } + + [MethodImpl(MethodImplOptions.AggressiveInlining)] + public static T ExtractSx<T>(this T value, int lsb, int length) where T : IBinaryInteger<T> + { + int bitSize = Unsafe.SizeOf<T>() * 8; + int shift = lsb & (bitSize - 1); + + return (value << (bitSize - (shift + length))) >> (bitSize - length); + } + + [MethodImpl(MethodImplOptions.AggressiveInlining)] + public static T Insert<T>(this T value, int lsb, bool toInsert) where T : IBinaryInteger<T> + { + int bitSize = Unsafe.SizeOf<T>() * 8; + lsb &= bitSize - 1; + + T mask = T.One << lsb; + + return (value & ~mask) | (toInsert ? mask : T.Zero); + } + + [MethodImpl(MethodImplOptions.AggressiveInlining)] + public static T Insert<T>(this T value, int lsb, int length, T toInsert) where T : IBinaryInteger<T> + { + int bitSize = Unsafe.SizeOf<T>() * 8; + lsb &= bitSize - 1; + + T mask = (~T.Zero >>> (bitSize - length)) << lsb; + + return (value & ~mask) | ((toInsert << lsb) & mask); + } + } +}
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