1 files changed, 55 insertions, 0 deletions
diff --git a/kernel/uint63.mli b/kernel/uint63.mli
new file mode 100644
index 0000000000..b5f40ca804
--- /dev/null
+++ b/kernel/uint63.mli
@@ -0,0 +1,55 @@
+type t
+
+val uint_size : int
+val maxuint31 : t
+
+      (* conversion to int *)
+val of_int : int -> t
+val to_int2 : t -> int * int (* msb, lsb *)
+val of_int64 : Int64.t -> t
+(*
+val of_uint : int -> t
+*)
+
+val hash : t -> int
+
+     (* convertion to a string *)
+val to_string : t -> string
+val of_string : string -> t
+
+val compile : t -> string
+
+(* constants *)
+val zero    : t
+val one : t
+
+      (* logical operations *)
+val l_sl    : t -> t -> t
+val l_sr    : t -> t -> t
+val l_and   : t -> t -> t
+val l_xor   : t -> t -> t
+val l_or    : t -> t -> t
+
+      (* Arithmetic operations *)
+val add     : t -> t -> t
+val sub     : t -> t -> t
+val mul     : t -> t -> t
+val div     : t -> t -> t
+val rem     : t -> t -> t
+
+      (* Specific arithmetic operations *)
+val mulc    : t -> t -> t * t
+val addmuldiv : t -> t -> t -> t
+val div21   : t -> t -> t -> t * t
+
+      (* comparison *)
+val lt      : t -> t -> bool
+val equal      : t -> t -> bool
+val le      : t -> t -> bool
+val compare : t -> t -> int
+
+      (* head and tail *)
+val head0   : t -> t
+val tail0   : t -> t
+
+val is_uint63 : Obj.t -> bool