diff --git a/include/mem.h b/include/mem.h
new file mode 100644
index 0000000..9053805
--- /dev/null
+++ b/include/mem.h
@@ -0,0 +1,11 @@
+MB	struc
+Check 	         dw 'NH'
+IsNotLast 	db 0
+IsResident	db 0
+Reference	dw 0
+Sizes		dw 0
+Names		db 24 dup (0)
+MB	ends
+
+Free  equ 0
+memorystart equ 1000h