diff --git a/kaleid/kernel/mm/map.c b/kaleid/kernel/mm/map.c
index 8738e04..96afb64 100644
--- a/kaleid/kernel/mm/map.c
+++ b/kaleid/kernel/mm/map.c
@@ -68,9 +68,10 @@ static error_t InitMemoryMap(void)
 
     // fill the map
     while (currentEntry < mapEnd) {
+
         // memory zone address
-        memoryMap.entry[i].addr = (void*)((ulong)currentEntry->addr_low +
-                                    (((ulong)currentEntry->addr_high) << 32 ));
+        memoryMap.entry[i].addr = (void*)((ullong)currentEntry->addr_low +
+                                    (((ullong)currentEntry->addr_high) << 32 ));
         // memory zone size in bytes
         memoryMap.entry[i].length = (ulong)currentEntry->len_low +
                                     (((ulong)currentEntry->len_high) << 32);
@@ -82,6 +83,10 @@ static error_t InitMemoryMap(void)
         currentEntry = (multiboot_memory_map_t*) ((ulong)currentEntry +
                         currentEntry->size + sizeof(currentEntry->size));
         i++;
+
+        //DebugLog("addr high : %x, %x\n", currentEntry->addr_high,(ulong)currentEntry->addr_high);
+        DebugLog("addr shift  %x\n", ((currentEntry->addr_high) << 32));
+
     }
 
     DebugLog("[InitMemoryMap] %d entries detected in the memory map\n",