1 files changed, 0 insertions, 65 deletions
diff --git a/vm/stack.go b/vm/stack.go
deleted file mode 100644
index c5c2774db..000000000
--- a/vm/stack.go
+++ /dev/null
@@ -1,65 +0,0 @@
-package vm
-
-import (
-	"fmt"
-	"math/big"
-)
-
-func newStack() *stack {
-	return &stack{}
-}
-
-type stack struct {
-	data []*big.Int
-	ptr  int
-}
-
-func (st *stack) push(d *big.Int) {
-	stackItem := new(big.Int).Set(d)
-	if len(st.data) > st.ptr {
-		st.data[st.ptr] = stackItem
-	} else {
-		st.data = append(st.data, stackItem)
-	}
-	st.ptr++
-}
-
-func (st *stack) pop() (ret *big.Int) {
-	st.ptr--
-	ret = st.data[st.ptr]
-	return
-}
-
-func (st *stack) len() int {
-	return st.ptr
-}
-
-func (st *stack) swap(n int) {
-	st.data[st.len()-n], st.data[st.len()-1] = st.data[st.len()-1], st.data[st.len()-n]
-}
-
-func (st *stack) dup(n int) {
-	st.push(st.data[st.len()-n])
-}
-
-func (st *stack) peek() *big.Int {
-	return st.data[st.len()-1]
-}
-
-func (st *stack) require(n int) {
-	if st.len() < n {
-		panic(fmt.Sprintf("stack underflow (%d <=> %d)", len(st.data), n))
-	}
-}
-
-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("#############")
-}