From 4cf2419e6cfd3d7959914412abbb01f8cd473a76 Mon Sep 17 00:00:00 2001
From: TSRBerry <20988865+TSRBerry@users.noreply.github.com>
Date: Thu, 20 Jul 2023 03:02:31 +0200
Subject: [PATCH] HLE: Fix corrupted Mii structs (#5468)

* StructArrayHelpers: Add PureAttribute to all AsSpan() methods

* Fix broken Mii structs
---
 .../Memory/StructArrayHelpers.cs              | 137 ++++++++++++++++++
 .../Services/Mii/Types/RandomMiiConstants.cs  |  41 ++----
 2 files changed, 153 insertions(+), 25 deletions(-)

diff --git a/src/Ryujinx.Common/Memory/StructArrayHelpers.cs b/src/Ryujinx.Common/Memory/StructArrayHelpers.cs
index ae5853d1..1e8976ca 100644
--- a/src/Ryujinx.Common/Memory/StructArrayHelpers.cs
+++ b/src/Ryujinx.Common/Memory/StructArrayHelpers.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Diagnostics.Contracts;
 using System.Runtime.InteropServices;
 
 #pragma warning disable CS0169, IDE0051 // Remove unused private member
@@ -9,6 +10,8 @@ namespace Ryujinx.Common.Memory
         T _e0;
         public readonly int Length => 1;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -18,6 +21,8 @@ namespace Ryujinx.Common.Memory
         Array1<T> _other;
         public readonly int Length => 2;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -27,6 +32,8 @@ namespace Ryujinx.Common.Memory
         Array2<T> _other;
         public readonly int Length => 3;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -36,6 +43,8 @@ namespace Ryujinx.Common.Memory
         Array3<T> _other;
         public readonly int Length => 4;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -45,6 +54,8 @@ namespace Ryujinx.Common.Memory
         Array4<T> _other;
         public readonly int Length => 5;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -54,6 +65,8 @@ namespace Ryujinx.Common.Memory
         Array5<T> _other;
         public readonly int Length => 6;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -63,6 +76,8 @@ namespace Ryujinx.Common.Memory
         Array6<T> _other;
         public readonly int Length => 7;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -72,6 +87,8 @@ namespace Ryujinx.Common.Memory
         Array7<T> _other;
         public readonly int Length => 8;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -81,6 +98,8 @@ namespace Ryujinx.Common.Memory
         Array8<T> _other;
         public readonly int Length => 9;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -90,6 +109,8 @@ namespace Ryujinx.Common.Memory
         Array9<T> _other;
         public readonly int Length => 10;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -99,6 +120,8 @@ namespace Ryujinx.Common.Memory
         Array10<T> _other;
         public readonly int Length => 11;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -108,6 +131,8 @@ namespace Ryujinx.Common.Memory
         Array11<T> _other;
         public readonly int Length => 12;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -117,6 +142,8 @@ namespace Ryujinx.Common.Memory
         Array12<T> _other;
         public readonly int Length => 13;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -126,6 +153,8 @@ namespace Ryujinx.Common.Memory
         Array13<T> _other;
         public readonly int Length => 14;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -135,6 +164,8 @@ namespace Ryujinx.Common.Memory
         Array14<T> _other;
         public readonly int Length => 15;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -144,6 +175,8 @@ namespace Ryujinx.Common.Memory
         Array15<T> _other;
         public readonly int Length => 16;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -153,6 +186,8 @@ namespace Ryujinx.Common.Memory
         Array16<T> _other;
         public readonly int Length => 17;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -162,6 +197,8 @@ namespace Ryujinx.Common.Memory
         Array17<T> _other;
         public readonly int Length => 18;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -171,6 +208,8 @@ namespace Ryujinx.Common.Memory
         Array18<T> _other;
         public readonly int Length => 19;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -180,6 +219,8 @@ namespace Ryujinx.Common.Memory
         Array19<T> _other;
         public readonly int Length => 20;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -189,6 +230,8 @@ namespace Ryujinx.Common.Memory
         Array20<T> _other;
         public readonly int Length => 21;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -198,6 +241,8 @@ namespace Ryujinx.Common.Memory
         Array21<T> _other;
         public readonly int Length => 22;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -207,6 +252,8 @@ namespace Ryujinx.Common.Memory
         Array22<T> _other;
         public readonly int Length => 23;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -217,6 +264,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 24;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -227,6 +276,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 25;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -237,6 +288,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 26;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -247,6 +300,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 27;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -257,6 +312,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 28;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -267,6 +324,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 29;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -277,6 +336,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 30;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -287,6 +348,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 31;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -297,6 +360,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 32;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -307,6 +372,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 33;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -317,6 +384,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 34;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -327,6 +396,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 35;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -337,6 +408,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 36;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -347,6 +420,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 37;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -357,6 +432,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 38;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -367,6 +444,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 39;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -377,6 +456,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 40;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -387,6 +468,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 41;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -397,6 +480,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 42;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -407,6 +492,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 43;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -417,6 +504,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 44;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -427,6 +516,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 45;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -437,6 +528,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 46;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -447,6 +540,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 47;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -457,6 +552,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 48;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -467,6 +564,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 49;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -477,6 +576,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 50;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -487,6 +588,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 51;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -497,6 +600,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 52;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -507,6 +612,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 53;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -517,6 +624,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 54;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -527,6 +636,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 55;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -537,6 +648,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 56;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -547,6 +660,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 57;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -557,6 +672,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 58;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -567,6 +684,8 @@ namespace Ryujinx.Common.Memory
 
         public readonly int Length => 59;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -576,6 +695,8 @@ namespace Ryujinx.Common.Memory
         Array59<T> _other;
         public readonly int Length => 60;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -585,6 +706,8 @@ namespace Ryujinx.Common.Memory
         Array60<T> _other;
         public readonly int Length => 61;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -594,6 +717,8 @@ namespace Ryujinx.Common.Memory
         Array61<T> _other;
         public readonly int Length => 62;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -603,6 +728,8 @@ namespace Ryujinx.Common.Memory
         Array62<T> _other;
         public readonly int Length => 63;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -612,6 +739,8 @@ namespace Ryujinx.Common.Memory
         Array63<T> _other;
         public readonly int Length => 64;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -622,6 +751,8 @@ namespace Ryujinx.Common.Memory
         Array8<T> _other2;
         public readonly int Length => 73;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -632,6 +763,8 @@ namespace Ryujinx.Common.Memory
         Array62<T> _other2;
         public readonly int Length => 127;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -642,6 +775,8 @@ namespace Ryujinx.Common.Memory
         Array63<T> _other2;
         public readonly int Length => 128;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
@@ -652,6 +787,8 @@ namespace Ryujinx.Common.Memory
         Array127<T> _other2;
         public readonly int Length => 256;
         public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 }
diff --git a/src/Ryujinx.HLE/HOS/Services/Mii/Types/RandomMiiConstants.cs b/src/Ryujinx.HLE/HOS/Services/Mii/Types/RandomMiiConstants.cs
index 17333093..5599d0df 100644
--- a/src/Ryujinx.HLE/HOS/Services/Mii/Types/RandomMiiConstants.cs
+++ b/src/Ryujinx.HLE/HOS/Services/Mii/Types/RandomMiiConstants.cs
@@ -1,4 +1,4 @@
-using Ryujinx.Common.Utilities;
+using Ryujinx.Common.Memory;
 using System;
 using System.Runtime.InteropServices;
 
@@ -6,14 +6,14 @@ namespace Ryujinx.HLE.HOS.Services.Mii.Types
 {
     static class RandomMiiConstants
     {
-        public static int[] EyeRotateTable = {
+        public static readonly int[] EyeRotateTable = {
             0x03, 0x04, 0x04, 0x04, 0x03, 0x04, 0x04, 0x04, 0x03, 0x04, 0x04, 0x04, 0x04, 0x03, 0x03, 0x04,
             0x04, 0x04, 0x03, 0x03, 0x04, 0x03, 0x04, 0x03, 0x03, 0x04, 0x03, 0x04, 0x04, 0x03, 0x04, 0x04,
             0x04, 0x03, 0x03, 0x03, 0x04, 0x04, 0x03, 0x03, 0x03, 0x04, 0x04, 0x03, 0x03, 0x03, 0x03, 0x03,
             0x03, 0x03, 0x03, 0x03, 0x04, 0x04, 0x04, 0x04, 0x03, 0x04, 0x04, 0x03, 0x04, 0x04,
         };
 
-        public static int[] EyebrowRotateTable =  {
+        public static readonly int[] EyebrowRotateTable =  {
             0x06, 0x06, 0x05, 0x07, 0x06, 0x07, 0x06, 0x07, 0x04, 0x07, 0x06, 0x08, 0x05, 0x05, 0x06, 0x06,
             0x07, 0x07, 0x06, 0x06, 0x05, 0x06, 0x07, 0x05,
         };
@@ -25,27 +25,17 @@ namespace Ryujinx.HLE.HOS.Services.Mii.Types
             Mustache,
         }
 
-        [StructLayout(LayoutKind.Sequential, Pack = 4, Size = ValuesArraySize)]
-        public struct RandomMiiValues
-        {
-            private const int ValuesArraySize = 0xbc;
-
-            private readonly int _firstValueByte;
-
-            public ReadOnlySpan<int> Values => SpanHelpers.AsSpan<RandomMiiValues, int>(ref this);
-        }
-
         [StructLayout(LayoutKind.Sequential, Pack = 4, Size = 0xCC)]
         public struct RandomMiiData4
         {
-            public int Gender;
-            public int Age;
-            public int Race;
-            public int ValuesCount;
+            public readonly int Gender;
+            public readonly int Age;
+            public readonly int Race;
+            public readonly int ValuesCount;
 
-            private readonly RandomMiiValues _values;
+            private Array47<int> _values;
 
-            public readonly ReadOnlySpan<int> Values => _values.Values[..ValuesCount];
+            public ReadOnlySpan<int> Values => _values.AsSpan()[..ValuesCount];
         }
 
         [StructLayout(LayoutKind.Sequential, Pack = 4, Size = 0xC8)]
@@ -54,22 +44,23 @@ namespace Ryujinx.HLE.HOS.Services.Mii.Types
             private readonly int _argument1;
             private readonly int _argument2;
 
-            public int ValuesCount;
+            public readonly int ValuesCount;
 
-            private readonly RandomMiiValues _values;
+            private Array47<int> _values;
 
-            public readonly ReadOnlySpan<int> Values => _values.Values[..ValuesCount];
+            public ReadOnlySpan<int> Values => _values.AsSpan()[..ValuesCount];
         }
 
         [StructLayout(LayoutKind.Sequential, Pack = 4, Size = 0xC4)]
         public struct RandomMiiData2
         {
             private readonly int _argument;
-            public int ValuesCount;
 
-            private readonly RandomMiiValues _values;
+            public readonly int ValuesCount;
 
-            public readonly ReadOnlySpan<int> Values => _values.Values[..ValuesCount];
+            private Array47<int> _values;
+
+            public ReadOnlySpan<int> Values => _values.AsSpan()[..ValuesCount];
         }
 
         public static ReadOnlySpan<RandomMiiData4> RandomMiiFacelineArray => MemoryMarshal.Cast<byte, RandomMiiData4>(RandomMiiFacelineRawArray);