1 files changed, 0 insertions, 122 deletions
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)
-		}
-	}
-}