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authorGravatar Andres Erbsen <andreser@mit.edu>2017-04-06 13:20:46 -0400
committerGravatar Andres Erbsen <andreser@mit.edu>2017-04-06 13:20:46 -0400
commit2adac8f52dcd9ee88f98ce9ec604eaaa9c6a115f (patch)
treeb289ae0a3f4279e621610163acd44ca5431e79c7 /src/Spec
parent6763db2413fe56661fa5113bd981c42bc42f2ca8 (diff)
remove Encoding stuff
Diffstat (limited to 'src/Spec')
-rw-r--r--src/Spec/Encoding.v8
-rw-r--r--src/Spec/ModularWordEncoding.v40
2 files changed, 0 insertions, 48 deletions
diff --git a/src/Spec/Encoding.v b/src/Spec/Encoding.v
deleted file mode 100644
index b063b638f..000000000
--- a/src/Spec/Encoding.v
+++ /dev/null
@@ -1,8 +0,0 @@
-Class CanonicalEncoding (T B:Type) := {
- enc : T -> B ;
- dec : B -> option T ;
- encoding_valid : forall x, dec (enc x) = Some x ;
- encoding_canonical : forall x_enc x, dec x_enc = Some x -> enc x = x_enc
-}.
-
-Notation "'canonical' 'encoding' 'of' T 'as' B" := (CanonicalEncoding T B) (at level 50). \ No newline at end of file
diff --git a/src/Spec/ModularWordEncoding.v b/src/Spec/ModularWordEncoding.v
deleted file mode 100644
index 5b0bdb545..000000000
--- a/src/Spec/ModularWordEncoding.v
+++ /dev/null
@@ -1,40 +0,0 @@
-Require Import Coq.ZArith.ZArith.
-Require Import Coq.Numbers.Natural.Peano.NPeano.
-Require Import Crypto.ModularArithmetic.PrimeFieldTheorems.
-Require Import Bedrock.Word.
-Require Import Crypto.Tactics.VerdiTactics.
-Require Import Crypto.Util.NatUtil.
-Require Import Crypto.Util.WordUtil.
-Require Import Crypto.Spec.Encoding.
-Require Crypto.Encoding.ModularWordEncodingPre.
-
-Local Open Scope nat_scope.
-
-Section ModularWordEncoding.
- Context {m : positive} {sz : nat} {m_pos : (0 < m)%Z} {bound_check : Z.to_nat m < 2 ^ sz}.
-
- Definition Fm_enc (x : F m) : word sz := NToWord sz (Z.to_N (F.to_Z x)).
-
- Definition Fm_dec (x_ : word sz) : option (F m) :=
- let z := Z.of_N (wordToN (x_)) in
- if Z_lt_dec z m
- then Some (F.of_Z m z)
- else None
- .
-
- Definition sign_bit (x : F m) :=
- match (Fm_enc x) with
- | Word.WO => false
- | Word.WS b _ w' => b
- end.
-
- Global Instance modular_word_encoding : canonical encoding of F m as word sz := {
- enc := Fm_enc;
- dec := Fm_dec;
- encoding_valid :=
- @ModularWordEncodingPre.Fm_encoding_valid m sz m_pos bound_check;
- encoding_canonical :=
- @ModularWordEncodingPre.Fm_encoding_canonical m sz bound_check
- }.
-
-End ModularWordEncoding. \ No newline at end of file