Added support for the STORE directive.

src/parser.c

@@ -167,7 +167,38 @@ void HandleAssemblerDirective() {
             break;
         case Store:
             {
-                
+                AdvanceParser();
+
+                Token* next = PeekToken();
+
+                if (next->Class != DirectiveClass) {
+                    //If the token after the current one is invalid then the expect function ahead will exit, so we can
+                    //go ahead and change the STORE directive into a proper opcode here.
+                    directive->Value.Mnemonic = STOW;
+                    directive->Class = MnemonicClass;
+                    directive->Lemexe = "STOW";
+                }
+                else {
+                    if (next->Value.Directive != Byte) {
+                        fprintf(stderr, "[Line %d] Syntax error, expected keyword 'byte'.\n", next->LineNumber);
+                        exit(10);
+                    }
+
+                    RemoveCurrentToken(); //Remove byte modifier token.
+                    AdvanceParser();
+
+                    directive->Value.Mnemonic = STOB;
+                    directive->Class = MnemonicClass;
+                    directive->Lemexe = "STOB";
+                }
+
+                ExpectRegister();
+
+                ExpectPuncuation(Comma, ForwardParser);
+
+                ExpectRegister();
+
+                ExpectLineEndOrFileEnd(ForwardParser);
             }
             break;
         default: