#include <stdlib.h>
#include <string.h>
-#include <stdio.h>
#include "interface.h"
#include "sds.h"
#include "mem.h"
-extern uint8_t *mem_top;
-extern uint8_t *mem_bottom;
-extern uint8_t *mem_task;
-extern uint8_t *mem_sds;
+extern uint8_t *mem_top, *mem_bottom, *mem_task, *mem_sds;
struct sds *sds_head(void)
{