1 files changed, 69 insertions, 0 deletions
diff --git a/Ryujinx.HLE/OsHle/Homebrew.cs b/Ryujinx.HLE/OsHle/Homebrew.cs
new file mode 100644
index 00000000..4266c8db
--- /dev/null
+++ b/Ryujinx.HLE/OsHle/Homebrew.cs
@@ -0,0 +1,69 @@
+using ChocolArm64.Memory;
+
+namespace Ryujinx.HLE.OsHle
+{
+    static class Homebrew
+    {
+        //http://switchbrew.org/index.php?title=Homebrew_ABI
+        public static void WriteHbAbiData(AMemory Memory, long Position, int MainThreadHandle)
+        {
+            Memory.Manager.Map(Position, AMemoryMgr.PageSize, (int)MemoryType.Normal, AMemoryPerm.RW);
+
+            //MainThreadHandle
+            WriteConfigEntry(Memory, ref Position, 1, 0, MainThreadHandle);
+
+            //NextLoadPath
+            WriteConfigEntry(Memory, ref Position, 2, 0, Position + 0x200, Position + 0x400);
+
+            //AppletType
+            WriteConfigEntry(Memory, ref Position, 7);
+
+            //EndOfList
+            WriteConfigEntry(Memory, ref Position, 0);
+        }
+
+        private static void WriteConfigEntry(
+            AMemory  Memory,
+            ref long Position,
+            int      Key,
+            int      Flags  = 0,
+            long     Value0 = 0,
+            long     Value1 = 0)
+        {
+            Memory.WriteInt32(Position + 0x00, Key);
+            Memory.WriteInt32(Position + 0x04, Flags);
+            Memory.WriteInt64(Position + 0x08, Value0);
+            Memory.WriteInt64(Position + 0x10, Value1);
+
+            Position += 0x18;
+        }
+
+        public static string ReadHbAbiNextLoadPath(AMemory Memory, long Position)
+        {
+            string FileName = null;
+
+            while (true)
+            {
+                long Key = Memory.ReadInt64(Position);
+
+                if (Key == 2)
+                {
+                    long Value0 = Memory.ReadInt64(Position + 0x08);
+                    long Value1 = Memory.ReadInt64(Position + 0x10);
+
+                    FileName = AMemoryHelper.ReadAsciiString(Memory, Value0, Value1 - Value0);
+
+                    break;
+                }
+                else if (Key == 0)
+                {
+                    break;
+                }
+
+                Position += 0x18;
+            }
+
+            return FileName;
+        }
+    }
+}