5 files changed, 0 insertions, 301 deletions
diff --git a/pow/ar/block.go b/pow/ar/block.go
deleted file mode 100644
index 2124b53b4..000000000
--- a/pow/ar/block.go
+++ /dev/null
@@ -1,12 +0,0 @@
-package ar
-
-import (
-	"math/big"
-
-	"github.com/ethereum/go-ethereum/trie"
-)
-
-type Block interface {
-	Trie() *trie.Trie
-	Diff() *big.Int
-}
diff --git a/pow/ar/ops.go b/pow/ar/ops.go
deleted file mode 100644
index 3a099be08..000000000
--- a/pow/ar/ops.go
+++ /dev/null
@@ -1,54 +0,0 @@
-package ar
-
-import "math/big"
-
-const lenops int64 = 9
-
-type OpsFunc func(a, b *big.Int) *big.Int
-
-var ops [lenops]OpsFunc
-
-func init() {
-	ops[0] = Add
-	ops[1] = Mul
-	ops[2] = Mod
-	ops[3] = Xor
-	ops[4] = And
-	ops[5] = Or
-	ops[6] = Sub1
-	ops[7] = XorSub
-	ops[8] = Rsh
-}
-
-func Add(x, y *big.Int) *big.Int {
-	return new(big.Int).Add(x, y)
-}
-func Mul(x, y *big.Int) *big.Int {
-	return new(big.Int).Mul(x, y)
-}
-func Mod(x, y *big.Int) *big.Int {
-	return new(big.Int).Mod(x, y)
-}
-func Xor(x, y *big.Int) *big.Int {
-	return new(big.Int).Xor(x, y)
-}
-func And(x, y *big.Int) *big.Int {
-	return new(big.Int).And(x, y)
-}
-func Or(x, y *big.Int) *big.Int {
-	return new(big.Int).Or(x, y)
-}
-func Sub1(x, y *big.Int) *big.Int {
-	a := big.NewInt(-1)
-	a.Sub(a, x)
-
-	return a
-}
-func XorSub(x, y *big.Int) *big.Int {
-	t := Sub1(x, nil)
-
-	return t.Xor(t, y)
-}
-func Rsh(x, y *big.Int) *big.Int {
-	return new(big.Int).Rsh(x, uint(y.Uint64()%64))
-}
diff --git a/pow/ar/pow.go b/pow/ar/pow.go
deleted file mode 100644
index 8991a674b..000000000
--- a/pow/ar/pow.go
+++ /dev/null
@@ -1,122 +0,0 @@
-package ar
-
-import (
-	"math/big"
-
-	"github.com/ethereum/go-ethereum/ethutil"
-)
-
-type Entry struct {
-	op   OpsFunc
-	i, j *big.Int
-}
-
-type Tape struct {
-	tape  []Entry
-	block Block
-}
-
-func NewTape(block Block) *Tape {
-	return &Tape{nil, block}
-}
-
-func (self *Tape) gen(w, h int64, gen NumberGenerator) {
-	self.tape = nil
-
-	for v := int64(0); v < h; v++ {
-		op := ops[gen.rand64(lenops).Int64()]
-		r := gen.rand64(100).Uint64()
-
-		var j *big.Int
-		if r < 20 && v > 20 {
-			j = self.tape[len(self.tape)-1].i
-		} else {
-			j = gen.rand64(w)
-		}
-
-		i := gen.rand64(w)
-		self.tape = append(self.tape, Entry{op, i, j})
-	}
-}
-
-func (self *Tape) runTape(w, h int64, gen NumberGenerator) *big.Int {
-	var mem []*big.Int
-	for i := int64(0); i < w; i++ {
-		mem = append(mem, gen.rand(ethutil.BigPow(2, 64)))
-	}
-
-	set := func(i, j int) Entry {
-		entry := self.tape[i*100+j]
-		mem[entry.i.Uint64()] = entry.op(entry.i, entry.j)
-
-		return entry
-	}
-
-	dir := true
-	for i := 0; i < int(h)/100; i++ {
-		var entry Entry
-		if dir {
-			for j := 0; j < 100; j++ {
-				entry = set(i, j)
-			}
-		} else {
-			for j := 99; i >= 0; j-- {
-				entry = set(i, j)
-			}
-		}
-
-		t := mem[entry.i.Uint64()]
-		if big.NewInt(2).Cmp(new(big.Int).Mod(t, big.NewInt(37))) < 0 {
-			dir = !dir
-		}
-	}
-
-	return Sha3(mem)
-}
-
-func (self *Tape) Verify(header, nonce []byte) bool {
-	n := ethutil.BigD(nonce)
-
-	var w int64 = 10000
-	var h int64 = 150000
-	gen := Rnd(Sha3([]interface{}{header, new(big.Int).Div(n, big.NewInt(1000))}))
-	self.gen(w, h, gen)
-
-	gen = Rnd(Sha3([]interface{}{header, new(big.Int).Mod(n, big.NewInt(1000))}))
-	hash := self.runTape(w, h, gen)
-
-	it := self.block.Trie().Iterator()
-	next := it.Next(string(new(big.Int).Mod(hash, ethutil.BigPow(2, 160)).Bytes()))
-
-	req := ethutil.BigPow(2, 256)
-	req.Div(req, self.block.Diff())
-	return Sha3([]interface{}{hash, next}).Cmp(req) < 0
-}
-
-func (self *Tape) Run(header []byte) []byte {
-	nonce := big.NewInt(0)
-	var w int64 = 10000
-	var h int64 = 150000
-
-	req := ethutil.BigPow(2, 256)
-	req.Div(req, self.block.Diff())
-
-	for {
-		if new(big.Int).Mod(nonce, b(1000)).Cmp(b(0)) == 0 {
-			gen := Rnd(Sha3([]interface{}{header, new(big.Int).Div(nonce, big.NewInt(1000))}))
-			self.gen(w, h, gen)
-		}
-
-		gen := Rnd(Sha3([]interface{}{header, new(big.Int).Mod(nonce, big.NewInt(1000))}))
-		hash := self.runTape(w, h, gen)
-
-		it := self.block.Trie().Iterator()
-		next := it.Next(string(new(big.Int).Mod(hash, ethutil.BigPow(2, 160)).Bytes()))
-
-		if Sha3([]interface{}{hash, next}).Cmp(req) < 0 {
-			return nonce.Bytes()
-		} else {
-			nonce.Add(nonce, ethutil.Big1)
-		}
-	}
-}
diff --git a/pow/ar/pow_test.go b/pow/ar/pow_test.go
deleted file mode 100644
index b1ebf9281..000000000
--- a/pow/ar/pow_test.go
+++ /dev/null
@@ -1,47 +0,0 @@
-package ar
-
-import (
-	"fmt"
-	"math/big"
-	"testing"
-
-	"github.com/ethereum/go-ethereum/ethdb"
-	"github.com/ethereum/go-ethereum/trie"
-)
-
-type TestBlock struct {
-	trie *trie.Trie
-}
-
-func NewTestBlock() *TestBlock {
-	db, _ := ethdb.NewMemDatabase()
-	return &TestBlock{
-		trie: trie.New(db, ""),
-	}
-}
-
-func (self *TestBlock) Diff() *big.Int {
-	return b(10)
-}
-
-func (self *TestBlock) Trie() *trie.Trie {
-	return self.trie
-}
-
-func (self *TestBlock) Hash() []byte {
-	a := make([]byte, 32)
-	a[0] = 10
-	a[1] = 2
-	return a
-}
-
-func TestPow(t *testing.T) {
-	entry := make([]byte, 32)
-	entry[0] = 255
-
-	block := NewTestBlock()
-
-	pow := NewTape(block)
-	nonce := pow.Run(block.Hash())
-	fmt.Println("Found nonce", nonce)
-}
diff --git a/pow/ar/rnd.go b/pow/ar/rnd.go
deleted file mode 100644
index c62f4e062..000000000
--- a/pow/ar/rnd.go
+++ /dev/null
@@ -1,66 +0,0 @@
-package ar
-
-import (
-	"math/big"
-
-	"github.com/ethereum/go-ethereum/crypto"
-	"github.com/ethereum/go-ethereum/ethutil"
-)
-
-var b = big.NewInt
-
-type Node interface {
-	Big() *big.Int
-}
-
-type ByteNode []byte
-
-func (self ByteNode) Big() *big.Int {
-	return ethutil.BigD(ethutil.Encode([]byte(self)))
-}
-
-func Sha3(v interface{}) *big.Int {
-	if b, ok := v.(*big.Int); ok {
-		return ethutil.BigD(crypto.Sha3(b.Bytes()))
-	} else if b, ok := v.([]interface{}); ok {
-		return ethutil.BigD(crypto.Sha3(ethutil.Encode(b)))
-	} else if s, ok := v.([]*big.Int); ok {
-		v := make([]interface{}, len(s))
-		for i, b := range s {
-			v[i] = b
-		}
-
-		return ethutil.BigD(crypto.Sha3(ethutil.Encode(v)))
-	}
-
-	return nil
-}
-
-type NumberGenerator interface {
-	rand(r *big.Int) *big.Int
-	rand64(r int64) *big.Int
-}
-
-type rnd struct {
-	seed *big.Int
-}
-
-func Rnd(s *big.Int) rnd {
-	return rnd{s}
-}
-
-func (self rnd) rand(r *big.Int) *big.Int {
-	o := b(0).Mod(self.seed, r)
-
-	self.seed.Div(self.seed, r)
-
-	if self.seed.Cmp(ethutil.BigPow(2, 64)) < 0 {
-		self.seed = Sha3(self.seed)
-	}
-
-	return o
-}
-
-func (self rnd) rand64(r int64) *big.Int {
-	return self.rand(b(r))
-}