Added storing and outputting values in registry

machine.hpp

@@ -37,8 +37,14 @@ enum : int {
   SetTo,
   JumpTo,
   Print,
+  StoreValueIn,
+  PutValueIn,
 
   // Type
+  W,
+  X,
+  Y,
+  Z,
   AsDigit,
   AsUnsignedDigit,
   AsCharacter,
@@ -55,7 +61,7 @@ public:
 private:
   Command State = NoCommand;
   std::array<int, maxCells> memory;
-  int W = 0, X = 0, Y = 0, Z = 0;
+  int RW = 0, RX = 0, RY = 0, RZ = 0;
   std::size_t currentPosition = 0;
 
   void Execute(int command) {
@@ -87,6 +93,15 @@ private:
     case JumpTo:
       currentPosition = command;
       break;
+
+    case StoreValueIn:
+      whichRegistry(command) = memory[currentPosition];
+      break;
+
+    case PutValueIn:
+      memory[currentPosition] = whichRegistry(command);
+      break;
+
     case Print:
       handlePrint(command);
       break;
@@ -129,6 +144,8 @@ private:
     case Print:
     case JumpTo:
     case SetTo:
+    case StoreValueIn:
+    case PutValueIn:
     case IncrementBy:
     case DecrementBy:
     case MultiplyBy:
@@ -144,6 +161,22 @@ private:
     }
   }
 
+  int &whichRegistry(int Type) {
+    switch (Type) {
+    case W:
+      return RW;
+    case X:
+      return RX;
+    case Y:
+      return RY;
+    case Z:
+      return RZ;
+
+    default:
+      std::terminate();
+    }
+  }
+
   void handlePrint(int Type) {
     switch (Type) {
     case AsDigit: