Got the Parser to, so far, correctly (minus memory leaks) parse out and report errors with opcodes and their parameters.

src/parser.c

@@ -40,13 +40,14 @@ void ParseTokens(List* tokens) {
             case IDENTIFIER:
             case LABEL:
                 AddSymbol(t, ProgramCounter);
+                AdvanceParser();
                 break;
             case STRING:
                 ProgramCounter += strlen(t->lexeme);
                 break;
-            case NUMBER: //Number's will be 2 bytes
-                ProgramCounter += 2;
-                break;
+            //case NUMBER: //Number's will be 2 bytes
+            //    ProgramCounter += 2;
+            //    break;
             default: //Instructions are 1 byte wide.
                 if (t->token_class == Opcode) { 
                     ProgramCounter++;
@@ -71,11 +72,15 @@ void HandleOperation(void) {
 
     AdvanceParser();
 
-    if (inst->parameter_one && PeekToken()->token_class == 1) {
+    if (inst->parameter_one == None) return;
+
+    if (inst->parameter_one && PeekToken()->token_class > 0) {
         printf("Matched '%s'\n", PeekToken()->lexeme);
         AdvanceParser();
     }
 
+    if (inst->parameter_two == None) return;
+
     if (PeekToken()->type == COMMA) {
         AdvanceParser();
     } else { 
@@ -84,9 +89,12 @@ void HandleOperation(void) {
         return;
     }
 
-    if (inst->parameter_two && PeekToken()->token_class == 1) {
+    if (inst->parameter_two && PeekToken()->token_class > 0) {
         printf("Matched 2 '%s'\n", PeekToken()->lexeme);
         AdvanceParser();
+    } else {
+        printf("Failed to match %s (class: %d)\n", PeekToken()->lexeme, PeekToken()->token_class);
+        printf("Inst %s (class: %x)\n", inst->lexeme, inst->parameter_two);
     }
 }