Added direct memory access

include/interpret/errors.hpp

@@ -32,11 +32,21 @@ namespace Interpret
 		ExpectedImmediate(Token::Token const & token);
 	};
 
+	struct ExpectedImmediateOrMemory : public TokenError
+	{
+		ExpectedImmediateOrMemory(Token::Token const & token);
+	};
+
 	struct ExpectedRegister : public TokenError
 	{
 		ExpectedRegister(Token::Token const & token);
 	};
 
+	struct ExpectedRegisterOrMemory : public TokenError
+	{
+		ExpectedRegisterOrMemory(Token::Token const & token);
+	};
+
 	struct ExpectedOperand : public TokenError
 	{
 		ExpectedOperand(Token::Token const & token);

include/interpret/value.hpp

@@ -1,5 +1,5 @@
 #pragma once
-#include <execute/registers.hpp>
+#include <execute/state.hpp>
 #include <token/token.hpp>
 
 namespace Interpret
@@ -7,19 +7,23 @@ namespace Interpret
 	enum class ValueType
 	{
 		Register,
-		ImmediateInteger
+		ImmediateInteger,
+		MemoryLocation
+	};
+
+	enum class ValueDataType
+	{
+		Register,
+		Immediate
 	};
 
 	struct Value
 	{
 		ValueType type;
-		union
-		{
-			int registerIndex;
-			int integer;
-		};
+		ValueDataType dataType;
+		int data;
 
-		int & GetValue(Execute::Registers & registers);
+		int & GetValue(Execute::State & state, Execute::Registers & registers);
 
 		void CreateFromToken(Token::Token const & token);
 	};