Fixed a bug where CMP REG, REG wouldn't get encoded and a disassembler bug related to said CMP bug.

src/parser.c

@@ -199,7 +199,16 @@ void HandleRegisterBasedOpcode(unsigned char instruction, unsigned char mask) {
         Memory[ProgramCounter + 1] = *value & 0xFF;
 
         AdvanceParser();
-    } else {
+    }
+    else if (token->token_class == Reg) {
+        Memory[ProgramCounter] = (PeekToken()->type - R1) & 0x07;
+
+        AdvanceParser();
+
+        ProgramCounter++;
+        return;
+    } 
+    else {
         fprintf(stderr, "[Error] Expected operand, got %s\n", token->lexeme);
         exit(1);
     }