diff --git a/yeeshell.c b/yeeshell.c
index daa7dd0..ce61461 100644
--- a/yeeshell.c
+++ b/yeeshell.c
@@ -518,6 +518,7 @@ void parse_file(pid_t pid)
 	FILE *fp;
 	struct proc *p;
 	int i;
+	int slot;
 
 	sprintf(path, "/proc/%d/psinfo", pid);
 
@@ -545,6 +546,7 @@ void parse_file(pid_t pid)
 	}
 
 	slot++;
+	slot = SLOT_NR(endpt);
 
 	if (slot < 0 || slot >= nr_total)
 	{
@@ -698,3 +700,28 @@ void print_procs(struct proc *proc1, struct proc *proc2, int cputimemode)
 	printf("%6.2f%% system", 100.0 * systemticks / total_ticks);
 	printf("%6.2f%% in total\n", 100.0 * (systemticks + userticks) / total_ticks);
 }
+
+u64_t cputicks(struct proc *p1, struct proc *p2, int timemode)
+{
+	int i;
+	u64_t t = 0;
+	for (i = 0; i < CPUTIMENAMES; i++)
+	{
+		if (!CPUTIME(timemode, i))
+		{
+			continue;
+		}
+		if (p1->p_endpoint == p2->p_endpoint)
+		{
+			{
+				t = t + p2->p_cpucycles[i] - p1->p_cpucycles[i];
+			}
+		}
+		else
+		{
+			t = t + p2->p_cpucycles[i];
+		}
+	}
+
+	return t;
+}
diff --git a/yeeshell.h b/yeeshell.h
index d109713..698baec 100644
--- a/yeeshell.h
+++ b/yeeshell.h
@@ -93,7 +93,11 @@ int builtin_history(char **args);
 int builtin_mytop();
 
 /* mytop routine */
+int mytop_memory();
+int mytop_CPU();
 void get_procs();
 void parse_dir();
 void parse_file(pid_t pid);
-void getkinfo();
\ No newline at end of file
+void getkinfo();
+void print_procs(struct proc *proc1, struct proc *proc2, int cputimemode);
+u64_t cputicks(struct proc *p1, struct proc *p2, int timemode);
\ No newline at end of file