Library compcert.x86_64.Archi

Architecture-dependent parameters for x86 in 64-bit mode

Require Import ZArith.
Require Import Fappli_IEEE.
Require Import Fappli_IEEE_bits.

Definition ptr64 := true.

Definition big_endian := false.

Definition align_int64 := 8%Z.
Definition align_float64 := 8%Z.

Definition splitlong := negb ptr64.

Lemma splitlong_ptr32: splitlong = true → ptr64 = false.
Proof.
  unfold splitlong. destruct ptr64; simpl; congruence.
Qed.

Program Definition default_pl_64 : bool × nan_pl 53 :=
  (true , iter_nat 51 _ xO xH ).

Definition choose_binop_pl_64 (s1: bool) (pl1: nan_pl 53) (s2: bool) (pl2: nan_pl 53) :=
  false.
Program Definition default_pl_32 : bool × nan_pl 24 :=
  (true , iter_nat 22 _ xO xH ).

Definition choose_binop_pl_32 (s1: bool) (pl1: nan_pl 24) (s2: bool) (pl2: nan_pl 24) :=
  false.
Definition float_of_single_preserves_sNaN := false.

Global Opaque ptr64 big_endian splitlong
              default_pl_64 choose_binop_pl_64
              default_pl_32 choose_binop_pl_32
              float_of_single_preserves_sNaN.