1 files changed, 71 insertions, 0 deletions
diff --git a/Ryujinx.HLE/HOS/Kernel/KernelTransfer.cs b/Ryujinx.HLE/HOS/Kernel/KernelTransfer.cs
new file mode 100644
index 00000000..a3fabeae
--- /dev/null
+++ b/Ryujinx.HLE/HOS/Kernel/KernelTransfer.cs
@@ -0,0 +1,71 @@
+using ChocolArm64.Memory;
+
+namespace Ryujinx.HLE.HOS.Kernel
+{
+    static class KernelTransfer
+    {
+        public static bool UserToKernelInt32(Horizon System, long Address, out int Value)
+        {
+            KProcess CurrentProcess = System.Scheduler.GetCurrentProcess();
+
+            if (CurrentProcess.CpuMemory.IsMapped(Address) &&
+                CurrentProcess.CpuMemory.IsMapped(Address + 3))
+            {
+                Value = CurrentProcess.CpuMemory.ReadInt32(Address);
+
+                return true;
+            }
+
+            Value = 0;
+
+            return false;
+        }
+
+        public static bool UserToKernelString(Horizon System, long Address, int Size, out string Value)
+        {
+            KProcess CurrentProcess = System.Scheduler.GetCurrentProcess();
+
+            if (CurrentProcess.CpuMemory.IsMapped(Address) &&
+                CurrentProcess.CpuMemory.IsMapped(Address + Size - 1))
+            {
+                Value = MemoryHelper.ReadAsciiString(CurrentProcess.CpuMemory, Address, Size);
+
+                return true;
+            }
+
+            Value = null;
+
+            return false;
+        }
+
+        public static bool KernelToUserInt32(Horizon System, long Address, int Value)
+        {
+            KProcess CurrentProcess = System.Scheduler.GetCurrentProcess();
+
+            if (CurrentProcess.CpuMemory.IsMapped(Address) &&
+                CurrentProcess.CpuMemory.IsMapped(Address + 3))
+            {
+                CurrentProcess.CpuMemory.WriteInt32ToSharedAddr(Address, Value);
+
+                return true;
+            }
+
+            return false;
+        }
+
+        public static bool KernelToUserInt64(Horizon System, long Address, long Value)
+        {
+            KProcess CurrentProcess = System.Scheduler.GetCurrentProcess();
+
+            if (CurrentProcess.CpuMemory.IsMapped(Address) &&
+                CurrentProcess.CpuMemory.IsMapped(Address + 7))
+            {
+                CurrentProcess.CpuMemory.WriteInt64(Address, Value);
+
+                return true;
+            }
+
+            return false;
+        }
+    }
+}
+\ No newline at end of file