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authorobscuren <geffobscura@gmail.com>2015-03-23 23:59:09 +0800
committerobscuren <geffobscura@gmail.com>2015-03-23 23:59:09 +0800
commit0330077d76b48934ab024a309000f83c78047d8a (patch)
tree2a3ffbcd5bd941b30ed28d0eb5c30553a25324e0 /vm/stack.go
parentd7eaa97a297151637af090ecb05bbd6d260d90b8 (diff)
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moved state and vm to core
Diffstat (limited to 'vm/stack.go')
-rw-r--r--vm/stack.go65
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("#############")
-}