Memory added plus basic memory operations

include/interpret/code.hpp

@@ -11,5 +11,6 @@ namespace Interpret
 	{
 		std::vector<std::unique_ptr<Statement>> statements;
 		std::unordered_map<std::string, unsigned> labelStatementIndice;
+		std::unordered_map<std::string, int> declarations;
 	};
 }

include/interpret/operanddefinitions.hpp

@@ -7,5 +7,7 @@ namespace Interpret
 {
 	std::unique_ptr<Statement> ExtractStatement(unsigned const operatorIndex, std::vector<Token::Token> const & tokens);
 
+	std::tuple<std::string, int> ExtractDeclaration(unsigned const operatorIndex, std::vector<Token::Token> const & tokens);
+
 	int GetRequiredNumberOfArguments(Token::OperandType const type);
 }

include/interpret/statement.hpp

@@ -69,4 +69,18 @@ namespace Interpret
 
 		void Execute(Execute::Flags & flags, Execute::State & state, Execute::Registers & registers) override;
 	};
+
+	struct PushStatement : Statement
+	{
+		Value firstArgument;
+
+		void Execute(Execute::Flags & flags, Execute::State & state, Execute::Registers & registers) override;
+	};
+
+	struct PopStatement : Statement
+	{
+		Value firstArgument;
+
+		void Execute(Execute::Flags & flags, Execute::State & state, Execute::Registers & registers) override;
+	};
 }