1 files changed, 0 insertions, 150 deletions
diff --git a/ethchain/stack.go b/ethchain/stack.go
deleted file mode 100644
index a9fa2e522..000000000
--- a/ethchain/stack.go
+++ /dev/null
@@ -1,150 +0,0 @@
-package ethchain
-
-import (
-	"fmt"
-	"math"
-	"math/big"
-)
-
-type OpType int
-
-const (
-	tNorm = iota
-	tData
-	tExtro
-	tCrypto
-)
-
-type TxCallback func(opType OpType) bool
-
-// Simple push/pop stack mechanism
-type Stack struct {
-	data []*big.Int
-}
-
-func NewStack() *Stack {
-	return &Stack{}
-}
-
-func (st *Stack) Data() []*big.Int {
-	return st.data
-}
-
-func (st *Stack) Len() int {
-	return len(st.data)
-}
-
-func (st *Stack) Pop() *big.Int {
-	str := st.data[len(st.data)-1]
-
-	copy(st.data[:len(st.data)-1], st.data[:len(st.data)-1])
-	st.data = st.data[:len(st.data)-1]
-
-	return str
-}
-
-func (st *Stack) Popn() (*big.Int, *big.Int) {
-	ints := st.data[len(st.data)-2:]
-
-	copy(st.data[:len(st.data)-2], st.data[:len(st.data)-2])
-	st.data = st.data[:len(st.data)-2]
-
-	return ints[0], ints[1]
-}
-
-func (st *Stack) Peek() *big.Int {
-	str := st.data[len(st.data)-1]
-
-	return str
-}
-
-func (st *Stack) Peekn() (*big.Int, *big.Int) {
-	ints := st.data[:2]
-
-	return ints[0], ints[1]
-}
-
-func (st *Stack) Push(d *big.Int) {
-	st.data = append(st.data, new(big.Int).Set(d))
-}
-
-func (st *Stack) Get(amount *big.Int) []*big.Int {
-	// offset + size <= len(data)
-	length := big.NewInt(int64(len(st.data)))
-	if amount.Cmp(length) <= 0 {
-		start := new(big.Int).Sub(length, amount)
-		return st.data[start.Int64():length.Int64()]
-	}
-
-	return nil
-}
-
-func (st *Stack) Print() {
-	fmt.Println("### stack ###")
-	if len(st.data) > 0 {
-		for i, val := range st.data {
-			fmt.Printf("%-3d  %v\n", i, val)
-		}
-	} else {
-		fmt.Println("-- empty --")
-	}
-	fmt.Println("#############")
-}
-
-type Memory struct {
-	store []byte
-}
-
-func (m *Memory) Set(offset, size int64, value []byte) {
-	totSize := offset + size
-	lenSize := int64(len(m.store) - 1)
-	if totSize > lenSize {
-		// Calculate the diff between the sizes
-		diff := totSize - lenSize
-		if diff > 0 {
-			// Create a new empty slice and append it
-			newSlice := make([]byte, diff-1)
-			// Resize slice
-			m.store = append(m.store, newSlice...)
-		}
-	}
-	copy(m.store[offset:offset+size], value)
-}
-
-func (m *Memory) Resize(size uint64) {
-	if uint64(m.Len()) < size {
-		m.store = append(m.store, make([]byte, size-uint64(m.Len()))...)
-	}
-}
-
-func (m *Memory) Get(offset, size int64) []byte {
-	if len(m.store) > int(offset) {
-		end := int(math.Min(float64(len(m.store)), float64(offset+size)))
-
-		return m.store[offset:end]
-	}
-
-	return nil
-}
-
-func (m *Memory) Len() int {
-	return len(m.store)
-}
-
-func (m *Memory) Data() []byte {
-	return m.store
-}
-
-func (m *Memory) Print() {
-	fmt.Printf("### mem %d bytes ###\n", len(m.store))
-	if len(m.store) > 0 {
-		addr := 0
-		for i := 0; i+32 <= len(m.store); i += 32 {
-			fmt.Printf("%03d: % x\n", addr, m.store[i:i+32])
-			addr++
-		}
-	} else {
-		fmt.Println("-- empty --")
-	}
-	fmt.Println("####################")
-}