because @leiradel wants me to

libretro-common/include/libretro.h

@@ -1038,6 +1038,9 @@ struct retro_memory_descriptor
     * The length can't be used for that purpose; the frontend may want 
     * to append arbitrary data to an address, without a separator. */
    const char *addrspace;
+   
+   /* TODO: When finalizing this one, add a description field,
+    * which should be "WRAM" or something roughly equally long. */
 };
 
 /* The frontend may use the largest value of 'start'+'select' in a