-#define KERNEL_STACK 0x300000UL
-#define KERNEL_STACK_SIZE 0x100000UL
-#define KERNEL_STACK_END 0x3ffff0UL
+#define KSTACK_AREA 0x100000UL
+#define KSTACK_AREA_SIZE 0x300000UL
+#define KSTACK_AREA_END 0x3ffff0UL
+
+#define USR_EXEC 0x400000UL
+#define USR_EXEC_SIZE 0x20000000UL
+#define USR_EXEC_END 0x203fffffUL
+
+#define USR_MMAP 0x20400000UL
+#define USR_MMAP_SIZE 0x9fbc0000UL
+#define USR_MMAP_END 0xbffbffffUL
+
+#define USR_STACK 0xbffc0000UL
+#define USR_STACK_SIZE 0x40000UL
+#define USR_STACK_END 0xbffffff0UL