Build a quick draft of how the symbol value should be computed.

includes/symbols_table.h

@@ -13,16 +13,16 @@
 #define SYMBOLSTABLE_DEFAULT_CAPACITY 128
 
 typedef struct __token_node {
-    Token* Token;
+    const Token* Token;
     struct __token_node* Left;
     struct __token_node* Right;
 } TokenNode;
 
 typedef struct _symbol {
-    char* Name;
+    const char* Name;
     int Address;
     int Length;
-    Token* Token;
+    const Token* Token;
     TokenNode* ValueExpression;
 } Symbol;
 
@@ -33,12 +33,12 @@ typedef struct {
 } SymbolTable;
 
 SymbolTable* CreateSymbolTable(void);
-TokenNode* CreateTokenNode(Token* token);
-int TryGetSymbol(char* name, SymbolTable* table, Symbol** outSymbol);
-Symbol* AddSymbolToTable(char* name, int address, SymbolTable* table);
+TokenNode* CreateTokenNode(const Token* token);
+int TryGetSymbol(const char* name, const SymbolTable* table, Symbol** outSymbol);
+Symbol* AddSymbolToTable(const char* name, int address, SymbolTable* table);
 void FreeSymbolTable(SymbolTable* table);
 void FreeSymbol(Symbol* symbol);
-int SymbolResolved(Symbol* symbol);
-int TryGetSymbolValue(const Symbol* symbol, const SymbolTable* table, unsigned short** value);
+int SymbolResolved(const Symbol* symbol);
+int TryGetSymbolValue(const Symbol* symbol, const SymbolTable* table, unsigned short* value);
 
 #endif

includes/token.h

@@ -50,7 +50,7 @@ typedef struct __token {
         Registers Register;
         Mnemonic Mnemonic;
         Directive Directive;
-        int Number;
+        unsigned short Number;
     } Value;
 
     struct __token* Prev;