blob: f10570e2efa39334734305a582dc53f30b06bf42 (
plain)
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
|
(* *********************************************************************)
(* *)
(* The Compcert verified compiler *)
(* *)
(* Xavier Leroy, INRIA Paris *)
(* Jacques-Henri Jourdan, INRIA Paris *)
(* *)
(* Copyright Institut National de Recherche en Informatique et en *)
(* Automatique. All rights reserved. This file is distributed *)
(* under the terms of the GNU General Public License as published by *)
(* the Free Software Foundation, either version 2 of the License, or *)
(* (at your option) any later version. This file is also distributed *)
(* under the terms of the INRIA Non-Commercial License Agreement. *)
(* *)
(* *********************************************************************)
(** Architecture-dependent parameters for x86 in 32-bit mode *)
Require Import ZArith.
(*From Flocq*)
Require Import Binary Bits.
Definition ptr64 := false.
Definition big_endian := false.
Definition align_int64 := 4%Z.
Definition align_float64 := 4%Z.
Definition splitlong := negb ptr64.
Lemma splitlong_ptr32: splitlong = true -> ptr64 = false.
Proof.
unfold splitlong. destruct ptr64; simpl; congruence.
Qed.
Definition default_nan_64 : { x : binary64 | is_nan _ _ x = true } :=
exist _ (B754_nan 53 1024 true (iter_nat 51 _ xO xH) (eq_refl true)) (eq_refl true).
Definition choose_binop_pl_64 (pl1 pl2 : positive) :=
false. (**r always choose first NaN *)
Definition default_nan_32 : { x : binary32 | is_nan _ _ x = true } :=
exist _ (B754_nan 24 128 true (iter_nat 22 _ xO xH) (eq_refl true)) (eq_refl true).
Definition choose_binop_pl_32 (pl1 pl2 : positive) :=
false. (**r always choose first NaN *)
Definition fpu_returns_default_qNaN := false.
Definition float_of_single_preserves_sNaN := false.
Global Opaque ptr64 big_endian splitlong
default_nan_64 choose_binop_pl_64
default_nan_32 choose_binop_pl_32
fpu_returns_default_qNaN
float_of_single_preserves_sNaN.
|