From 3b00a77de57ab2737a7887521c192ce004c721e3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?P=C3=A9ter=20Szil=C3=A1gyi?= <peterke@gmail.com>
Date: Sun, 5 Mar 2017 17:38:34 +0200
Subject: crypto, pow: add pure Go implementation of ethash

---
 crypto/sha3/hashes.go       | 3 +++
 crypto/sha3/keccakf_amd64.s | 2 --
 2 files changed, 3 insertions(+), 2 deletions(-)

(limited to 'crypto/sha3')

diff --git a/crypto/sha3/hashes.go b/crypto/sha3/hashes.go
index 669cd5543..fa0d7b436 100644
--- a/crypto/sha3/hashes.go
+++ b/crypto/sha3/hashes.go
@@ -15,6 +15,9 @@ import (
 // NewKeccak256 creates a new Keccak-256 hash.
 func NewKeccak256() hash.Hash { return &state{rate: 136, outputLen: 32, dsbyte: 0x01} }
 
+// NewKeccak512 creates a new Keccak-512 hash.
+func NewKeccak512() hash.Hash { return &state{rate: 72, outputLen: 64, dsbyte: 0x01} }
+
 // New224 creates a new SHA3-224 hash.
 // Its generic security strength is 224 bits against preimage attacks,
 // and 112 bits against collision attacks.
diff --git a/crypto/sha3/keccakf_amd64.s b/crypto/sha3/keccakf_amd64.s
index a35335178..f88533acc 100644
--- a/crypto/sha3/keccakf_amd64.s
+++ b/crypto/sha3/keccakf_amd64.s
@@ -322,7 +322,6 @@
 // func keccakF1600(state *[25]uint64)
 TEXT ·keccakF1600(SB), 0, $200-8
 	MOVQ state+0(FP), rpState
-	SUBQ $(8*25), SP
 
 	// Convert the user state into an internal state
 	NOTQ _be(rpState)
@@ -388,5 +387,4 @@ TEXT ·keccakF1600(SB), 0, $200-8
 	NOTQ _mi(rpState)
 	NOTQ _sa(rpState)
 
-	ADDQ $(8*25), SP
 	RET
-- 
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