diff --git a/machine.hpp b/machine.hpp
index 411ab40..fef8f34 100644
--- a/machine.hpp
+++ b/machine.hpp
@@ -37,8 +37,11 @@ enum : int {
   SetTo,
   JumpTo,
   Print,
+
+  // Registry
   StoreValueIn,
   PutValueIn,
+  SetValueIn, // Three Argumens!!
 
   // Type
   W,
@@ -60,6 +63,7 @@ public:
 
 private:
   Command State = NoCommand;
+  int selectedRegistry = 0;
   std::array<int, maxCells> memory;
   int RW = 0, RX = 0, RY = 0, RZ = 0;
   std::size_t currentPosition = 0;
@@ -97,10 +101,17 @@ private:
     case StoreValueIn:
       whichRegistry(command) = memory[currentPosition];
       break;
-
     case PutValueIn:
       memory[currentPosition] = whichRegistry(command);
       break;
+    case SetValueIn:
+      if (selectedRegistry == 0) {
+        selectedRegistry = command;
+        return;
+      }
+      whichRegistry(selectedRegistry) = command;
+      selectedRegistry = 0;
+      break;
 
     case Print:
       handlePrint(command);
@@ -112,7 +123,7 @@ private:
     }
 
     // This is only called after multi-argument functions are done
-    if (State != NoCommand) {
+    if (State != NoCommand && selectedRegistry == 0) {
       State = NoCommand;
       return;
     }
@@ -140,12 +151,15 @@ private:
       --memory[currentPosition];
       return;
 
-    // Double Argument Commands
+    // Multi Argument Commands
     case Print:
     case JumpTo:
-    case SetTo:
+
     case StoreValueIn:
     case PutValueIn:
+    case SetValueIn:
+
+    case SetTo:
     case IncrementBy:
     case DecrementBy:
     case MultiplyBy: