1 files changed, 28 insertions, 0 deletions
diff --git a/src/Ryujinx.HLE/HOS/Tamper/CodeEmitters/LoadRegisterWithConstant.cs b/src/Ryujinx.HLE/HOS/Tamper/CodeEmitters/LoadRegisterWithConstant.cs
new file mode 100644
index 00000000..e4a86d7b
--- /dev/null
+++ b/src/Ryujinx.HLE/HOS/Tamper/CodeEmitters/LoadRegisterWithConstant.cs
@@ -0,0 +1,28 @@
+using Ryujinx.HLE.HOS.Tamper.Operations;
+
+namespace Ryujinx.HLE.HOS.Tamper.CodeEmitters
+{
+    /// <summary>
+    /// Code type 4 allows setting a register to a constant value.
+    /// </summary>
+    class LoadRegisterWithConstant
+    {
+        const int RegisterIndex = 3;
+        const int ValueImmediateIndex = 8;
+
+        const int ValueImmediateSize = 16;
+
+        public static void Emit(byte[] instruction, CompilationContext context)
+        {
+            // 400R0000 VVVVVVVV VVVVVVVV
+            // R: Register to use.
+            // V: Value to load.
+
+            Register destinationRegister = context.GetRegister(instruction[RegisterIndex]);
+            ulong immediate = InstructionHelper.GetImmediate(instruction, ValueImmediateIndex, ValueImmediateSize);
+            Value<ulong> sourceValue = new Value<ulong>(immediate);
+
+            context.CurrentOperations.Add(new OpMov<ulong>(destinationRegister, sourceValue));
+        }
+    }
+}