From 81e3066c13050677c5bc44ddbd22bd7c98f0e3e3 Mon Sep 17 00:00:00 2001 From: Yann Herklotz Date: Mon, 28 Sep 2020 19:29:14 +0100 Subject: Add Verilog backend --- verilog/Archi.v | 60 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 verilog/Archi.v (limited to 'verilog/Archi.v') diff --git a/verilog/Archi.v b/verilog/Archi.v new file mode 100644 index 00000000..e59274e2 --- /dev/null +++ b/verilog/Archi.v @@ -0,0 +1,60 @@ +(* *********************************************************************) +(* *) +(* 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 *) + +From Flocq Require Import Binary Bits. +Require Import ZArith List. + +Definition ptr64 := false. + +Definition big_endian := false. + +Definition align_int64 := 4%Z. +Definition align_float64 := 4%Z. + +Definition splitlong := false. + +Definition default_nan_64 := (true, iter_nat 51 _ xO xH). +Definition default_nan_32 := (true, iter_nat 22 _ xO xH). + +(* Always choose the first NaN argument, if any *) + +Definition choose_nan_64 (l: list (bool * positive)) : bool * positive := + match l with nil => default_nan_64 | n :: _ => n end. + +Definition choose_nan_32 (l: list (bool * positive)) : bool * positive := + match l with nil => default_nan_32 | n :: _ => n end. + +Lemma choose_nan_64_idem: forall n, + choose_nan_64 (n :: n :: nil) = choose_nan_64 (n :: nil). +Proof. auto. Qed. + +Lemma choose_nan_32_idem: forall n, + choose_nan_32 (n :: n :: nil) = choose_nan_32 (n :: nil). +Proof. auto. Qed. + +Definition fma_order {A: Type} (x y z: A) := (x, y, z). + +Definition fma_invalid_mul_is_nan := false. + +Definition float_of_single_preserves_sNaN := false. + +Global Opaque ptr64 big_endian splitlong + default_nan_64 choose_nan_64 + default_nan_32 choose_nan_32 + fma_order fma_invalid_mul_is_nan + float_of_single_preserves_sNaN. -- cgit