diff --git a/libemile/emile_checksum.c b/libemile/emile_checksum.c
new file mode 100644
index 0000000..0b04d23
--- /dev/null
+++ b/libemile/emile_checksum.c
@@ -0,0 +1,41 @@
+static __attribute__((used)) char* rcsid = "$CVSHeader$";
+/*
+ *
+ * (c) 2004 Laurent Vivier <LaurentVivier@wanadoo.fr>
+ *
+ */
+
+#include "libemile.h"
+
+#ifdef USE_16BIT_CHECKSUM
+int emile_checksum(unsigned char *addr, unsigned short length)
+{
+	int j;
+	unsigned short sum = 0;
+
+	for (j = 0; j < length; j++)
+	{
+		sum += addr[j];
+		sum = (sum << 1) | (sum >> 15);
+	}
+	if (sum == 0)
+		sum = 0xFFFF;
+
+	return sum;
+}
+#else
+unsigned short emile_checksum(unsigned char *addr, unsigned int length)
+{
+	unsigned int sum = 0;
+	unsigned int i;
+
+	for (i = 0; i < length; i++)
+	{
+		sum += addr[i];
+		sum <<= 1;
+		sum |= (sum & 0x00010000) ? 1 : 0;
+	}
+
+	return sum;
+}
+#endif
diff --git a/libemile/emile_map_dev.c b/libemile/emile_map_dev.c
new file mode 100644
index 0000000..169183a
--- /dev/null
+++ b/libemile/emile_map_dev.c
@@ -0,0 +1,19 @@
+static __attribute__((used)) char* rcsid = "$CVSHeader$";
+/*
+ *
+ * (c) 2004 Laurent Vivier <LaurentVivier@wanadoo.fr>
+ *
+ */
+
+#include <stdio.h>
+
+#include "partition.h"
+#include "libemile.h"
+
+char* emile_map_dev(emile_map_t *map)
+{
+	if (!emile_map_partition_is_valid(map))
+		return NULL;
+
+	return map->name;
+}
diff --git a/libemile/emile_map_get_bootinfo.c b/libemile/emile_map_get_bootinfo.c
new file mode 100644
index 0000000..d894e32
--- /dev/null
+++ b/libemile/emile_map_get_bootinfo.c
@@ -0,0 +1,28 @@
+static __attribute__((used)) char* rcsid = "$CVSHeader$";
+/*
+ *
+ * (c) 2004 Laurent Vivier <LaurentVivier@wanadoo.fr>
+ *
+ */
+
+#include <string.h>
+
+#include "partition.h"
+#include "libemile.h"
+
+int emile_map_get_bootinfo(emile_map_t *map, int* bootstart, int *bootsize,
+		           int *bootaddr, int *bootentry, int* checksum,
+			   char* processor)
+{
+	 if (!emile_map_is_valid(map))
+		 return -1;
+
+	*bootstart = map->partition.LgBootStart;
+	*bootsize = map->partition.BootSize;
+	*bootaddr = map->partition.BootAddr;
+	*bootentry = map->partition.BootEntry;
+	*checksum = map->partition.BootCksum;
+	strcpy(processor, map->partition.Processor);
+
+	return 0;
+}