1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- S Y S T E M . A R I T H _ 1 2 8 --
-- --
-- B o d y --
-- --
-- Copyright (C) 2020-2024, Free Software Foundation, Inc. --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- ware Foundation; either version 3, or (at your option) any later ver- --
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE. --
-- --
-- As a special exception under Section 7 of GPL version 3, you are granted --
-- additional permissions described in the GCC Runtime Library Exception, --
-- version 3.1, as published by the Free Software Foundation. --
-- --
-- You should have received a copy of the GNU General Public License and --
-- a copy of the GCC Runtime Library Exception along with this program; --
-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
-- <http://www.gnu.org/licenses/>. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
with System.Arith_Double;
package body System.Arith_128
with SPARK_Mode
is
subtype Uns128 is Interfaces.Unsigned_128;
subtype Uns64 is Interfaces.Unsigned_64;
use Interfaces;
package Impl is new Arith_Double (Int128, Uns128, Uns64);
function Add_With_Ovflo_Check128 (X, Y : Int128) return Int128
renames Impl.Add_With_Ovflo_Check;
function Subtract_With_Ovflo_Check128 (X, Y : Int128) return Int128
renames Impl.Subtract_With_Ovflo_Check;
function Multiply_With_Ovflo_Check128 (X, Y : Int128) return Int128
renames Impl.Multiply_With_Ovflo_Check;
procedure Scaled_Divide128
(X, Y, Z : Int128;
Q, R : out Int128;
Round : Boolean)
renames Impl.Scaled_Divide;
procedure Double_Divide128
(X, Y, Z : Int128;
Q, R : out Int128;
Round : Boolean)
renames Impl.Double_Divide;
end System.Arith_128;
|
