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op-geth
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reworked stack

This commit is contained in:
obscuren 2015-03-10 00:25:27 +01:00
parent 0795fd2701
commit 9007f2bbdc
6 changed files with 361 additions and 451 deletions
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6
tests/vm/gh_test.go
View File

@ -11,7 +11,6 @@ import (
"github.com/ethereum/go-ethereum/logger" "github.com/ethereum/go-ethereum/logger"
"github.com/ethereum/go-ethereum/state" "github.com/ethereum/go-ethereum/state"
"github.com/ethereum/go-ethereum/tests/helper" "github.com/ethereum/go-ethereum/tests/helper"
"github.com/ethereum/go-ethereum/vm"
) )
type Account struct { type Account struct {
@ -81,11 +80,6 @@ func RunVmTest(p string, t *testing.T) {
helper.CreateFileTests(t, p, &tests) helper.CreateFileTests(t, p, &tests)
for name, test := range tests { for name, test := range tests {
vm.Debug = true
helper.Logger.SetLogLevel(4)
if name != "addmod0" {
continue
}
db, _ := ethdb.NewMemDatabase() db, _ := ethdb.NewMemDatabase()
statedb := state.New(nil, db) statedb := state.New(nil, db)
for addr, account := range test.Pre { for addr, account := range test.Pre {

9
vm/debugger.go
View File

@ -1,10 +1 @@
package vm package vm
import "github.com/ethereum/go-ethereum/state"
type Debugger interface {
BreakHook(step int, op OpCode, mem *Memory, stack *Stack, object *state.StateObject) bool
StepHook(step int, op OpCode, mem *Memory, stack *Stack, object *state.StateObject) bool
BreakPoints() []int64
SetCode(byteCode []byte)
}

86
vm/gas.go Normal file
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@ -0,0 +1,86 @@
package vm
import "math/big"
type req struct {
stack int
gas *big.Int
}
var _baseCheck = map[OpCode]req{
// Req stack Gas price
ADD: {2, GasFastestStep},
LT: {2, GasFastestStep},
GT: {2, GasFastestStep},
SLT: {2, GasFastestStep},
SGT: {2, GasFastestStep},
EQ: {2, GasFastestStep},
ISZERO: {1, GasFastestStep},
SUB: {2, GasFastestStep},
AND: {2, GasFastestStep},
OR: {2, GasFastestStep},
XOR: {2, GasFastestStep},
NOT: {1, GasFastestStep},
BYTE: {2, GasFastestStep},
CALLDATALOAD: {1, GasFastestStep},
CALLDATACOPY: {3, GasFastestStep},
MLOAD: {1, GasFastestStep},
MSTORE: {2, GasFastestStep},
MSTORE8: {2, GasFastestStep},
CODECOPY: {3, GasFastestStep},
MUL: {2, GasFastStep},
DIV: {2, GasFastStep},
SDIV: {2, GasFastStep},
MOD: {2, GasFastStep},
SMOD: {2, GasFastStep},
SIGNEXTEND: {2, GasFastStep},
ADDMOD: {3, GasMidStep},
MULMOD: {3, GasMidStep},
JUMP: {1, GasMidStep},
JUMPI: {2, GasSlowStep},
EXP: {2, GasSlowStep},
ADDRESS: {0, GasQuickStep},
ORIGIN: {0, GasQuickStep},
CALLER: {0, GasQuickStep},
CALLVALUE: {0, GasQuickStep},
CODESIZE: {0, GasQuickStep},
GASPRICE: {0, GasQuickStep},
COINBASE: {0, GasQuickStep},
TIMESTAMP: {0, GasQuickStep},
NUMBER: {0, GasQuickStep},
CALLDATASIZE: {0, GasQuickStep},
DIFFICULTY: {0, GasQuickStep},
GASLIMIT: {0, GasQuickStep},
POP: {0, GasQuickStep},
PC: {0, GasQuickStep},
MSIZE: {0, GasQuickStep},
GAS: {0, GasQuickStep},
BLOCKHASH: {1, GasExtStep},
BALANCE: {0, GasExtStep},
EXTCODESIZE: {1, GasExtStep},
EXTCODECOPY: {4, GasExtStep},
SLOAD: {1, GasStorageGet},
SSTORE: {2, Zero},
SHA3: {1, GasSha3Base},
CREATE: {3, GasCreate},
CALL: {7, GasCall},
CALLCODE: {7, GasCall},
JUMPDEST: {0, GasJumpDest},
SUICIDE: {1, Zero},
RETURN: {2, Zero},
}
func baseCheck(op OpCode, stack *stack, gas *big.Int) {
if r, ok := _baseCheck[op]; ok {
stack.require(r.stack)
gas.Add(gas, r.gas)
}
}
func toWordSize(size *big.Int) *big.Int {
tmp := new(big.Int)
tmp.Add(size, u256(31))
tmp.Div(tmp, u256(32))
return tmp
}

72
vm/memory.go Normal file
View File

@ -0,0 +1,72 @@
package vm
import "fmt"
type Memory struct {
store []byte
}
func NewMemory() *Memory {
return &Memory{nil}
}
func (m *Memory) Set(offset, size uint64, value []byte) {
if len(value) > 0 {
totSize := offset + size
lenSize := uint64(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 (self *Memory) Get(offset, size int64) (cpy []byte) {
if size == 0 {
return nil
}
if len(self.store) > int(offset) {
cpy = make([]byte, size)
copy(cpy, self.store[offset:offset+size])
return
}
return
}
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("####################")
}

188
vm/stack.go
View File

@ -5,98 +5,53 @@ import (
"math/big" "math/big"
) )
type OpType int func newStack() *stack {
return &stack{}
}
const ( type stack struct {
tNorm = iota
tData
tExtro
tCrypto
)
type TxCallback func(opType OpType) bool
// Simple push/pop stack mechanism
type Stack struct {
data []*big.Int data []*big.Int
ptr int
} }
func NewStack() *Stack { func (st *stack) push(d *big.Int) {
return &Stack{} if len(st.data) > st.ptr {
} st.data[st.ptr] = d
} else {
func (st *Stack) Data() []*big.Int { st.data = append(st.data, d)
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[len(st.data)-2:]
return ints[0], ints[1]
}
func (st *Stack) Swapn(n int) (*big.Int, *big.Int) {
st.data[len(st.data)-n], st.data[len(st.data)-1] = st.data[len(st.data)-1], st.data[len(st.data)-n]
return st.data[len(st.data)-n], st.data[len(st.data)-1]
}
func (st *Stack) Dupn(n int) *big.Int {
st.Push(st.data[len(st.data)-n])
return st.Peek()
}
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()]
} }
st.ptr++
return nil
} }
func (st *Stack) require(n int) { func (st *stack) pop() (ret *big.Int) {
if st.Len() < n { st.ptr--
panic(fmt.Sprintf("stack underflow (%d <=> %d)", st.Len(), n)) 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() { func (st *stack) Print() {
fmt.Println("### stack ###") fmt.Println("### stack ###")
if len(st.data) > 0 { if len(st.data) > 0 {
for i, val := range st.data { for i, val := range st.data {
@ -107,72 +62,3 @@ func (st *Stack) Print() {
} }
fmt.Println("#############") fmt.Println("#############")
} }
type Memory struct {
store []byte
}
func NewMemory() *Memory {
return &Memory{nil}
}
func (m *Memory) Set(offset, size uint64, value []byte) {
if len(value) > 0 {
totSize := offset + size
lenSize := uint64(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 (self *Memory) Get(offset, size int64) (cpy []byte) {
if size == 0 {
return nil
}
if len(self.store) > int(offset) {
cpy = make([]byte, size)
copy(cpy, self.store[offset:offset+size])
return
}
return
}
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("####################")
}

451
vm/vm.go
View File

@ -19,8 +19,6 @@ type Vm struct {
// For logging // For logging
debug bool debug bool
Dbg Debugger
BreakPoints []int64 BreakPoints []int64
Stepping bool Stepping bool
Fn string Fn string
@ -66,10 +64,9 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
destinations = analyseJumpDests(context.Code) destinations = analyseJumpDests(context.Code)
mem = NewMemory() mem = NewMemory()
stack = NewStack() stack = newStack()
pc uint64 = 0 pc uint64 = 0
step = 0 step = 0
prevStep = 0
statedb = self.env.State() statedb = self.env.State()
jump = func(from uint64, to *big.Int) { jump = func(from uint64, to *big.Int) {
@ -93,7 +90,6 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
} }
for { for {
prevStep = step
// The base for all big integer arithmetic // The base for all big integer arithmetic
base := new(big.Int) base := new(big.Int)
@ -101,11 +97,7 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
// Get the memory location of pc // Get the memory location of pc
op = context.GetOp(pc) op = context.GetOp(pc)
self.Printf("(pc) %-3d -o- %-14s (m) %-4d (s) %-4d ", pc, op.String(), mem.Len(), stack.Len()) self.Printf("(pc) %-3d -o- %-14s (m) %-4d (s) %-4d ", pc, op.String(), mem.Len(), stack.len())
if self.Dbg != nil {
//self.Dbg.Step(self, op, mem, stack, context)
}
newMemSize, gas := self.calculateGasAndSize(context, caller, op, statedb, mem, stack) newMemSize, gas := self.calculateGasAndSize(context, caller, op, statedb, mem, stack)
self.Printf("(g) %-3v (%v)", gas, context.Gas) self.Printf("(g) %-3v (%v)", gas, context.Gas)
@ -125,40 +117,40 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
switch op { switch op {
// 0x20 range // 0x20 range
case ADD: case ADD:
x, y := stack.Popn() x, y := stack.pop(), stack.pop()
self.Printf(" %v + %v", y, x) self.Printf(" %v + %v", y, x)
base.Add(y, x) base.Add(x, y)
U256(base) U256(base)
self.Printf(" = %v", base) self.Printf(" = %v", base)
// Pop result back on the stack // pop result back on the stack
stack.Push(base) stack.push(base)
case SUB: case SUB:
x, y := stack.Popn() x, y := stack.pop(), stack.pop()
self.Printf(" %v - %v", y, x) self.Printf(" %v - %v", y, x)
base.Sub(y, x) base.Sub(x, y)
U256(base) U256(base)
self.Printf(" = %v", base) self.Printf(" = %v", base)
// Pop result back on the stack // pop result back on the stack
stack.Push(base) stack.push(base)
case MUL: case MUL:
x, y := stack.Popn() x, y := stack.pop(), stack.pop()
self.Printf(" %v * %v", y, x) self.Printf(" %v * %v", y, x)
base.Mul(y, x) base.Mul(x, y)
U256(base) U256(base)
self.Printf(" = %v", base) self.Printf(" = %v", base)
// Pop result back on the stack // pop result back on the stack
stack.Push(base) stack.push(base)
case DIV: case DIV:
x, y := stack.Pop(), stack.Pop() x, y := stack.pop(), stack.pop()
self.Printf(" %v / %v", x, y) self.Printf(" %v / %v", x, y)
if y.Cmp(ethutil.Big0) != 0 { if y.Cmp(ethutil.Big0) != 0 {
@ -168,10 +160,10 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
U256(base) U256(base)
self.Printf(" = %v", base) self.Printf(" = %v", base)
// Pop result back on the stack // pop result back on the stack
stack.Push(base) stack.push(base)
case SDIV: case SDIV:
x, y := S256(stack.Pop()), S256(stack.Pop()) x, y := S256(stack.pop()), S256(stack.pop())
self.Printf(" %v / %v", x, y) self.Printf(" %v / %v", x, y)
@ -191,9 +183,9 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
} }
self.Printf(" = %v", base) self.Printf(" = %v", base)
stack.Push(base) stack.push(base)
case MOD: case MOD:
x, y := stack.Pop(), stack.Pop() x, y := stack.pop(), stack.pop()
self.Printf(" %v %% %v", x, y) self.Printf(" %v %% %v", x, y)
@ -206,9 +198,9 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
U256(base) U256(base)
self.Printf(" = %v", base) self.Printf(" = %v", base)
stack.Push(base) stack.push(base)
case SMOD: case SMOD:
x, y := S256(stack.Pop()), S256(stack.Pop()) x, y := S256(stack.pop()), S256(stack.pop())
self.Printf(" %v %% %v", x, y) self.Printf(" %v %% %v", x, y)
@ -228,25 +220,25 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
} }
self.Printf(" = %v", base) self.Printf(" = %v", base)
stack.Push(base) stack.push(base)
case EXP: case EXP:
x, y := stack.Popn() x, y := stack.pop(), stack.pop()
self.Printf(" %v ** %v", y, x) self.Printf(" %v ** %v", x, y)
base.Exp(y, x, Pow256) base.Exp(x, y, Pow256)
U256(base) U256(base)
self.Printf(" = %v", base) self.Printf(" = %v", base)
stack.Push(base) stack.push(base)
case SIGNEXTEND: case SIGNEXTEND:
back := stack.Pop().Uint64() back := stack.pop().Uint64()
if back < 31 { if back < 31 {
bit := uint(back*8 + 7) bit := uint(back*8 + 7)
num := stack.Pop() num := stack.pop()
mask := new(big.Int).Lsh(ethutil.Big1, bit) mask := new(big.Int).Lsh(ethutil.Big1, bit)
mask.Sub(mask, ethutil.Big1) mask.Sub(mask, ethutil.Big1)
if ethutil.BitTest(num, int(bit)) { if ethutil.BitTest(num, int(bit)) {
@ -259,91 +251,91 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
self.Printf(" = %v", num) self.Printf(" = %v", num)
stack.Push(num) stack.push(num)
} }
case NOT: case NOT:
base.Sub(Pow256, stack.Pop()).Sub(base, ethutil.Big1) base.Sub(Pow256, stack.pop()).Sub(base, ethutil.Big1)
// Not needed // Not needed
base = U256(base) base = U256(base)
stack.Push(base) stack.push(base)
case LT: case LT:
x, y := stack.Popn() x, y := stack.pop(), stack.pop()
self.Printf(" %v < %v", y, x) self.Printf(" %v < %v", x, y)
// x < y // x < y
if y.Cmp(x) < 0 { if x.Cmp(y) < 0 {
stack.Push(ethutil.BigTrue) stack.push(ethutil.BigTrue)
} else { } else {
stack.Push(ethutil.BigFalse) stack.push(ethutil.BigFalse)
} }
case GT: case GT:
x, y := stack.Popn() x, y := stack.pop(), stack.pop()
self.Printf(" %v > %v", y, x) self.Printf(" %v > %v", x, y)
// x > y // x > y
if y.Cmp(x) > 0 { if x.Cmp(y) > 0 {
stack.Push(ethutil.BigTrue) stack.push(ethutil.BigTrue)
} else { } else {
stack.Push(ethutil.BigFalse) stack.push(ethutil.BigFalse)
} }
case SLT: case SLT:
y, x := S256(stack.Pop()), S256(stack.Pop()) x, y := S256(stack.pop()), S256(stack.pop())
self.Printf(" %v < %v", y, x) self.Printf(" %v < %v", x, y)
// x < y // x < y
if y.Cmp(S256(x)) < 0 { if x.Cmp(S256(y)) < 0 {
stack.Push(ethutil.BigTrue) stack.push(ethutil.BigTrue)
} else { } else {
stack.Push(ethutil.BigFalse) stack.push(ethutil.BigFalse)
} }
case SGT: case SGT:
y, x := S256(stack.Pop()), S256(stack.Pop()) x, y := S256(stack.pop()), S256(stack.pop())
self.Printf(" %v > %v", y, x) self.Printf(" %v > %v", x, y)
// x > y // x > y
if y.Cmp(x) > 0 { if x.Cmp(y) > 0 {
stack.Push(ethutil.BigTrue) stack.push(ethutil.BigTrue)
} else { } else {
stack.Push(ethutil.BigFalse) stack.push(ethutil.BigFalse)
} }
case EQ: case EQ:
x, y := stack.Popn() x, y := stack.pop(), stack.pop()
self.Printf(" %v == %v", y, x) self.Printf(" %v == %v", y, x)
// x == y // x == y
if x.Cmp(y) == 0 { if x.Cmp(y) == 0 {
stack.Push(ethutil.BigTrue) stack.push(ethutil.BigTrue)
} else { } else {
stack.Push(ethutil.BigFalse) stack.push(ethutil.BigFalse)
} }
case ISZERO: case ISZERO:
x := stack.Pop() x := stack.pop()
if x.Cmp(ethutil.BigFalse) > 0 { if x.Cmp(ethutil.BigFalse) > 0 {
stack.Push(ethutil.BigFalse) stack.push(ethutil.BigFalse)
} else { } else {
stack.Push(ethutil.BigTrue) stack.push(ethutil.BigTrue)
} }
// 0x10 range // 0x10 range
case AND: case AND:
x, y := stack.Popn() x, y := stack.pop(), stack.pop()
self.Printf(" %v & %v", y, x) self.Printf(" %v & %v", y, x)
stack.Push(base.And(y, x)) stack.push(base.And(x, y))
case OR: case OR:
x, y := stack.Popn() x, y := stack.pop(), stack.pop()
self.Printf(" %v | %v", y, x) self.Printf(" %v | %v", x, y)
stack.Push(base.Or(y, x)) stack.push(base.Or(x, y))
case XOR: case XOR:
x, y := stack.Popn() x, y := stack.pop(), stack.pop()
self.Printf(" %v ^ %v", y, x) self.Printf(" %v ^ %v", x, y)
stack.Push(base.Xor(y, x)) stack.push(base.Xor(x, y))
case BYTE: case BYTE:
val, th := stack.Popn() th, val := stack.pop(), stack.pop()
if th.Cmp(big.NewInt(32)) < 0 { if th.Cmp(big.NewInt(32)) < 0 {
byt := big.NewInt(int64(ethutil.LeftPadBytes(val.Bytes(), 32)[th.Int64()])) byt := big.NewInt(int64(ethutil.LeftPadBytes(val.Bytes(), 32)[th.Int64()]))
@ -355,12 +347,12 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
self.Printf(" => 0x%x", base.Bytes()) self.Printf(" => 0x%x", base.Bytes())
stack.Push(base) stack.push(base)
case ADDMOD: case ADDMOD:
x := stack.Pop() x := stack.pop()
y := stack.Pop() y := stack.pop()
z := stack.Pop() z := stack.pop()
add := new(big.Int).Add(x, y) add := new(big.Int).Add(x, y)
if len(z.Bytes()) > 0 { // NOT 0x0 if len(z.Bytes()) > 0 { // NOT 0x0
@ -371,12 +363,12 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
self.Printf(" %v + %v %% %v = %v", x, y, z, base) self.Printf(" %v + %v %% %v = %v", x, y, z, base)
stack.Push(base) stack.push(base)
case MULMOD: case MULMOD:
x := stack.Pop() x := stack.pop()
y := stack.Pop() y := stack.pop()
z := stack.Pop() z := stack.pop()
mul := new(big.Int).Mul(x, y) mul := new(big.Int).Mul(x, y)
if len(z.Bytes()) > 0 { // NOT 0x0 if len(z.Bytes()) > 0 { // NOT 0x0
@ -387,24 +379,24 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
self.Printf(" %v + %v %% %v = %v", x, y, z, base) self.Printf(" %v + %v %% %v = %v", x, y, z, base)
stack.Push(base) stack.push(base)
// 0x20 range // 0x20 range
case SHA3: case SHA3:
size, offset := stack.Popn() size, offset := stack.pop(), stack.pop()
data := crypto.Sha3(mem.Get(offset.Int64(), size.Int64())) data := crypto.Sha3(mem.Get(offset.Int64(), size.Int64()))
stack.Push(ethutil.BigD(data)) stack.push(ethutil.BigD(data))
self.Printf(" => (%v) %x", size, data) self.Printf(" => (%v) %x", size, data)
// 0x30 range // 0x30 range
case ADDRESS: case ADDRESS:
stack.Push(ethutil.BigD(context.Address())) stack.push(ethutil.BigD(context.Address()))
self.Printf(" => %x", context.Address()) self.Printf(" => %x", context.Address())
case BALANCE: case BALANCE:
addr := stack.Pop().Bytes() addr := stack.pop().Bytes()
var balance *big.Int var balance *big.Int
if statedb.GetStateObject(addr) != nil { if statedb.GetStateObject(addr) != nil {
balance = statedb.GetBalance(addr) balance = statedb.GetBalance(addr)
@ -412,27 +404,27 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
balance = base balance = base
} }
stack.Push(balance) stack.push(balance)
self.Printf(" => %v (%x)", balance, addr) self.Printf(" => %v (%x)", balance, addr)
case ORIGIN: case ORIGIN:
origin := self.env.Origin() origin := self.env.Origin()
stack.Push(ethutil.BigD(origin)) stack.push(ethutil.BigD(origin))
self.Printf(" => %x", origin) self.Printf(" => %x", origin)
case CALLER: case CALLER:
caller := context.caller.Address() caller := context.caller.Address()
stack.Push(ethutil.BigD(caller)) stack.push(ethutil.BigD(caller))
self.Printf(" => %x", caller) self.Printf(" => %x", caller)
case CALLVALUE: case CALLVALUE:
stack.Push(value) stack.push(value)
self.Printf(" => %v", value) self.Printf(" => %v", value)
case CALLDATALOAD: case CALLDATALOAD:
var ( var (
offset = stack.Pop() offset = stack.pop()
data = make([]byte, 32) data = make([]byte, 32)
lenData = big.NewInt(int64(len(callData))) lenData = big.NewInt(int64(len(callData)))
) )
@ -446,18 +438,18 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
self.Printf(" => 0x%x", data) self.Printf(" => 0x%x", data)
stack.Push(ethutil.BigD(data)) stack.push(ethutil.BigD(data))
case CALLDATASIZE: case CALLDATASIZE:
l := int64(len(callData)) l := int64(len(callData))
stack.Push(big.NewInt(l)) stack.push(big.NewInt(l))
self.Printf(" => %d", l) self.Printf(" => %d", l)
case CALLDATACOPY: case CALLDATACOPY:
var ( var (
size = uint64(len(callData)) size = uint64(len(callData))
mOff = stack.Pop().Uint64() mOff = stack.pop().Uint64()
cOff = stack.Pop().Uint64() cOff = stack.pop().Uint64()
l = stack.Pop().Uint64() l = stack.pop().Uint64()
) )
if cOff > size { if cOff > size {
@ -475,7 +467,7 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
case CODESIZE, EXTCODESIZE: case CODESIZE, EXTCODESIZE:
var code []byte var code []byte
if op == EXTCODESIZE { if op == EXTCODESIZE {
addr := stack.Pop().Bytes() addr := stack.pop().Bytes()
code = statedb.GetCode(addr) code = statedb.GetCode(addr)
} else { } else {
@ -483,21 +475,21 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
} }
l := big.NewInt(int64(len(code))) l := big.NewInt(int64(len(code)))
stack.Push(l) stack.push(l)
self.Printf(" => %d", l) self.Printf(" => %d", l)
case CODECOPY, EXTCODECOPY: case CODECOPY, EXTCODECOPY:
var code []byte var code []byte
if op == EXTCODECOPY { if op == EXTCODECOPY {
code = statedb.GetCode(stack.Pop().Bytes()) code = statedb.GetCode(stack.pop().Bytes())
} else { } else {
code = context.Code code = context.Code
} }
context := NewContext(nil, nil, code, ethutil.Big0, ethutil.Big0) context := NewContext(nil, nil, code, ethutil.Big0, ethutil.Big0)
var ( var (
mOff = stack.Pop().Uint64() mOff = stack.pop().Uint64()
cOff = stack.Pop().Uint64() cOff = stack.pop().Uint64()
l = stack.Pop().Uint64() l = stack.pop().Uint64()
) )
codeCopy := context.GetCode(cOff, l) codeCopy := context.GetCode(cOff, l)
@ -505,80 +497,80 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
self.Printf(" => [%v, %v, %v] %x", mOff, cOff, l, codeCopy) self.Printf(" => [%v, %v, %v] %x", mOff, cOff, l, codeCopy)
case GASPRICE: case GASPRICE:
stack.Push(context.Price) stack.push(context.Price)
self.Printf(" => %x", context.Price) self.Printf(" => %x", context.Price)
// 0x40 range // 0x40 range
case BLOCKHASH: case BLOCKHASH:
num := stack.Pop() num := stack.pop()
n := new(big.Int).Sub(self.env.BlockNumber(), ethutil.Big257) n := new(big.Int).Sub(self.env.BlockNumber(), ethutil.Big257)
if num.Cmp(n) > 0 && num.Cmp(self.env.BlockNumber()) < 0 { if num.Cmp(n) > 0 && num.Cmp(self.env.BlockNumber()) < 0 {
stack.Push(ethutil.BigD(self.env.GetHash(num.Uint64()))) stack.push(ethutil.BigD(self.env.GetHash(num.Uint64())))
} else { } else {
stack.Push(ethutil.Big0) stack.push(ethutil.Big0)
} }
self.Printf(" => 0x%x", stack.Peek().Bytes()) self.Printf(" => 0x%x", stack.peek().Bytes())
case COINBASE: case COINBASE:
coinbase := self.env.Coinbase() coinbase := self.env.Coinbase()
stack.Push(ethutil.BigD(coinbase)) stack.push(ethutil.BigD(coinbase))
self.Printf(" => 0x%x", coinbase) self.Printf(" => 0x%x", coinbase)
case TIMESTAMP: case TIMESTAMP:
time := self.env.Time() time := self.env.Time()
stack.Push(big.NewInt(time)) stack.push(big.NewInt(time))
self.Printf(" => 0x%x", time) self.Printf(" => 0x%x", time)
case NUMBER: case NUMBER:
number := self.env.BlockNumber() number := self.env.BlockNumber()
stack.Push(U256(number)) stack.push(U256(number))
self.Printf(" => 0x%x", number.Bytes()) self.Printf(" => 0x%x", number.Bytes())
case DIFFICULTY: case DIFFICULTY:
difficulty := self.env.Difficulty() difficulty := self.env.Difficulty()
stack.Push(difficulty) stack.push(difficulty)
self.Printf(" => 0x%x", difficulty.Bytes()) self.Printf(" => 0x%x", difficulty.Bytes())
case GASLIMIT: case GASLIMIT:
self.Printf(" => %v", self.env.GasLimit()) self.Printf(" => %v", self.env.GasLimit())
stack.Push(self.env.GasLimit()) stack.push(self.env.GasLimit())
// 0x50 range // 0x50 range
case PUSH1, PUSH2, PUSH3, PUSH4, PUSH5, PUSH6, PUSH7, PUSH8, PUSH9, PUSH10, PUSH11, PUSH12, PUSH13, PUSH14, PUSH15, PUSH16, PUSH17, PUSH18, PUSH19, PUSH20, PUSH21, PUSH22, PUSH23, PUSH24, PUSH25, PUSH26, PUSH27, PUSH28, PUSH29, PUSH30, PUSH31, PUSH32: case PUSH1, PUSH2, PUSH3, PUSH4, PUSH5, PUSH6, PUSH7, PUSH8, PUSH9, PUSH10, PUSH11, PUSH12, PUSH13, PUSH14, PUSH15, PUSH16, PUSH17, PUSH18, PUSH19, PUSH20, PUSH21, PUSH22, PUSH23, PUSH24, PUSH25, PUSH26, PUSH27, PUSH28, PUSH29, PUSH30, PUSH31, PUSH32:
a := uint64(op - PUSH1 + 1) a := uint64(op - PUSH1 + 1)
byts := context.GetRangeValue(pc+1, a) byts := context.GetRangeValue(pc+1, a)
// Push value to stack // push value to stack
stack.Push(ethutil.BigD(byts)) stack.push(ethutil.BigD(byts))
pc += a pc += a
step += int(op) - int(PUSH1) + 1 step += int(op) - int(PUSH1) + 1
self.Printf(" => 0x%x", byts) self.Printf(" => 0x%x", byts)
case POP: case POP:
stack.Pop() stack.pop()
case DUP1, DUP2, DUP3, DUP4, DUP5, DUP6, DUP7, DUP8, DUP9, DUP10, DUP11, DUP12, DUP13, DUP14, DUP15, DUP16: case DUP1, DUP2, DUP3, DUP4, DUP5, DUP6, DUP7, DUP8, DUP9, DUP10, DUP11, DUP12, DUP13, DUP14, DUP15, DUP16:
n := int(op - DUP1 + 1) n := int(op - DUP1 + 1)
stack.Dupn(n) stack.dup(n)
self.Printf(" => [%d] 0x%x", n, stack.Peek().Bytes()) self.Printf(" => [%d] 0x%x", n, stack.peek().Bytes())
case SWAP1, SWAP2, SWAP3, SWAP4, SWAP5, SWAP6, SWAP7, SWAP8, SWAP9, SWAP10, SWAP11, SWAP12, SWAP13, SWAP14, SWAP15, SWAP16: case SWAP1, SWAP2, SWAP3, SWAP4, SWAP5, SWAP6, SWAP7, SWAP8, SWAP9, SWAP10, SWAP11, SWAP12, SWAP13, SWAP14, SWAP15, SWAP16:
n := int(op - SWAP1 + 2) n := int(op - SWAP1 + 2)
x, y := stack.Swapn(n) stack.swap(n)
self.Printf(" => [%d] %x [0] %x", n, x.Bytes(), y.Bytes()) self.Printf(" => [%d]", n)
case LOG0, LOG1, LOG2, LOG3, LOG4: case LOG0, LOG1, LOG2, LOG3, LOG4:
n := int(op - LOG0) n := int(op - LOG0)
topics := make([][]byte, n) topics := make([][]byte, n)
mSize, mStart := stack.Popn() mStart, mSize := stack.pop(), stack.pop()
for i := 0; i < n; i++ { for i := 0; i < n; i++ {
topics[i] = ethutil.LeftPadBytes(stack.Pop().Bytes(), 32) topics[i] = ethutil.LeftPadBytes(stack.pop().Bytes(), 32)
} }
data := mem.Get(mStart.Int64(), mSize.Int64()) data := mem.Get(mStart.Int64(), mSize.Int64())
@ -587,41 +579,40 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
self.Printf(" => %v", log) self.Printf(" => %v", log)
case MLOAD: case MLOAD:
offset := stack.Pop() offset := stack.pop()
val := ethutil.BigD(mem.Get(offset.Int64(), 32)) val := ethutil.BigD(mem.Get(offset.Int64(), 32))
stack.Push(val) stack.push(val)
self.Printf(" => 0x%x", val.Bytes()) self.Printf(" => 0x%x", val.Bytes())
case MSTORE: // Store the value at stack top-1 in to memory at location stack top case MSTORE: // Store the value at stack top-1 in to memory at location stack top
// Pop value of the stack // pop value of the stack
val, mStart := stack.Popn() mStart, val := stack.pop(), stack.pop()
mem.Set(mStart.Uint64(), 32, ethutil.BigToBytes(val, 256)) mem.Set(mStart.Uint64(), 32, ethutil.BigToBytes(val, 256))
self.Printf(" => 0x%x", val) self.Printf(" => 0x%x", val)
case MSTORE8: case MSTORE8:
off := stack.Pop() off, val := stack.pop(), stack.pop()
val := stack.Pop()
mem.store[off.Int64()] = byte(val.Int64() & 0xff) mem.store[off.Int64()] = byte(val.Int64() & 0xff)
self.Printf(" => [%v] 0x%x", off, val) self.Printf(" => [%v] 0x%x", off, val)
case SLOAD: case SLOAD:
loc := stack.Pop() loc := stack.pop()
val := ethutil.BigD(statedb.GetState(context.Address(), loc.Bytes())) val := ethutil.BigD(statedb.GetState(context.Address(), loc.Bytes()))
stack.Push(val) stack.push(val)
self.Printf(" {0x%x : 0x%x}", loc.Bytes(), val.Bytes()) self.Printf(" {0x%x : 0x%x}", loc.Bytes(), val.Bytes())
case SSTORE: case SSTORE:
val, loc := stack.Popn() loc, val := stack.pop(), stack.pop()
statedb.SetState(context.Address(), loc.Bytes(), val) statedb.SetState(context.Address(), loc.Bytes(), val)
self.Printf(" {0x%x : 0x%x}", loc.Bytes(), val.Bytes()) self.Printf(" {0x%x : 0x%x}", loc.Bytes(), val.Bytes())
case JUMP: case JUMP:
jump(pc, stack.Pop()) jump(pc, stack.pop())
continue continue
case JUMPI: case JUMPI:
cond, pos := stack.Popn() pos, cond := stack.pop(), stack.pop()
if cond.Cmp(ethutil.BigTrue) >= 0 { if cond.Cmp(ethutil.BigTrue) >= 0 {
jump(pc, pos) jump(pc, pos)
@ -633,19 +624,19 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
case JUMPDEST: case JUMPDEST:
case PC: case PC:
stack.Push(big.NewInt(int64(pc))) stack.push(big.NewInt(int64(pc)))
case MSIZE: case MSIZE:
stack.Push(big.NewInt(int64(mem.Len()))) stack.push(big.NewInt(int64(mem.Len())))
case GAS: case GAS:
stack.Push(context.Gas) stack.push(context.Gas)
self.Printf(" => %x", context.Gas) self.Printf(" => %x", context.Gas)
// 0x60 range // 0x60 range
case CREATE: case CREATE:
var ( var (
value = stack.Pop() value = stack.pop()
size, offset = stack.Popn() offset, size = stack.pop(), stack.pop()
input = mem.Get(offset.Int64(), size.Int64()) input = mem.Get(offset.Int64(), size.Int64())
gas = new(big.Int).Set(context.Gas) gas = new(big.Int).Set(context.Gas)
addr []byte addr []byte
@ -655,7 +646,7 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
context.UseGas(context.Gas) context.UseGas(context.Gas)
ret, suberr, ref := self.env.Create(context, nil, input, gas, price, value) ret, suberr, ref := self.env.Create(context, nil, input, gas, price, value)
if suberr != nil { if suberr != nil {
stack.Push(ethutil.BigFalse) stack.push(ethutil.BigFalse)
self.Printf(" (*) 0x0 %v", suberr) self.Printf(" (*) 0x0 %v", suberr)
} else { } else {
@ -668,23 +659,19 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
} }
addr = ref.Address() addr = ref.Address()
stack.Push(ethutil.BigD(addr)) stack.push(ethutil.BigD(addr))
} }
// Debug hook
if self.Dbg != nil {
self.Dbg.SetCode(context.Code)
}
case CALL, CALLCODE: case CALL, CALLCODE:
gas := stack.Pop() gas := stack.pop()
// Pop gas and value of the stack. // pop gas and value of the stack.
value, addr := stack.Popn() addr, value := stack.pop(), stack.pop()
value = U256(value) value = U256(value)
// Pop input size and offset // pop input size and offset
inSize, inOffset := stack.Popn() inOffset, inSize := stack.pop(), stack.pop()
// Pop return size and offset // pop return size and offset
retSize, retOffset := stack.Popn() retOffset, retSize := stack.pop(), stack.pop()
address := ethutil.Address(addr.Bytes()) address := ethutil.Address(addr.Bytes())
self.Printf(" => %x", address).Endl() self.Printf(" => %x", address).Endl()
@ -707,30 +694,24 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
} }
if err != nil { if err != nil {
stack.Push(ethutil.BigFalse) stack.push(ethutil.BigFalse)
vmlogger.Debugln(err) vmlogger.Debugln(err)
} else { } else {
stack.Push(ethutil.BigTrue) stack.push(ethutil.BigTrue)
mem.Set(retOffset.Uint64(), retSize.Uint64(), ret) mem.Set(retOffset.Uint64(), retSize.Uint64(), ret)
} }
self.Printf("resume %x (%v)", context.Address(), context.Gas) self.Printf("resume %x (%v)", context.Address(), context.Gas)
// Debug hook
if self.Dbg != nil {
self.Dbg.SetCode(context.Code)
}
case RETURN: case RETURN:
size, offset := stack.Popn() offset, size := stack.pop(), stack.pop()
ret := mem.Get(offset.Int64(), size.Int64()) ret := mem.Get(offset.Int64(), size.Int64())
self.Printf(" => [%v, %v] (%d) 0x%x", offset, size, len(ret), ret).Endl() self.Printf(" => [%v, %v] (%d) 0x%x", offset, size, len(ret), ret).Endl()
return context.Return(ret), nil return context.Return(ret), nil
case SUICIDE: case SUICIDE:
receiver := statedb.GetOrNewStateObject(stack.Pop().Bytes()) receiver := statedb.GetOrNewStateObject(stack.pop().Bytes())
balance := statedb.GetBalance(context.Address()) balance := statedb.GetBalance(context.Address())
self.Printf(" => (%x) %v", receiver.Address()[:4], balance) self.Printf(" => (%x) %v", receiver.Address()[:4], balance)
@ -753,117 +734,17 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
pc++ pc++
self.Endl() self.Endl()
if self.Dbg != nil {
for _, instrNo := range self.Dbg.BreakPoints() {
if pc == uint64(instrNo) {
self.Stepping = true
if !self.Dbg.BreakHook(prevStep, op, mem, stack, statedb.GetStateObject(context.Address())) {
return nil, nil
}
} else if self.Stepping {
if !self.Dbg.StepHook(prevStep, op, mem, stack, statedb.GetStateObject(context.Address())) {
return nil, nil
}
}
}
}
} }
} }
type req struct { func (self *Vm) calculateGasAndSize(context *Context, caller ContextRef, op OpCode, statedb *state.StateDB, mem *Memory, stack *stack) (*big.Int, *big.Int) {
stack int
gas *big.Int
}
var _baseCheck = map[OpCode]req{
// Req Stack Gas price
ADD: {2, GasFastestStep},
LT: {2, GasFastestStep},
GT: {2, GasFastestStep},
SLT: {2, GasFastestStep},
SGT: {2, GasFastestStep},
EQ: {2, GasFastestStep},
ISZERO: {1, GasFastestStep},
SUB: {2, GasFastestStep},
AND: {2, GasFastestStep},
OR: {2, GasFastestStep},
XOR: {2, GasFastestStep},
NOT: {1, GasFastestStep},
BYTE: {2, GasFastestStep},
CALLDATALOAD: {1, GasFastestStep},
CALLDATACOPY: {3, GasFastestStep},
MLOAD: {1, GasFastestStep},
MSTORE: {2, GasFastestStep},
MSTORE8: {2, GasFastestStep},
CODECOPY: {3, GasFastestStep},
MUL: {2, GasFastStep},
DIV: {2, GasFastStep},
SDIV: {2, GasFastStep},
MOD: {2, GasFastStep},
SMOD: {2, GasFastStep},
SIGNEXTEND: {2, GasFastStep},
ADDMOD: {3, GasMidStep},
MULMOD: {3, GasMidStep},
JUMP: {1, GasMidStep},
JUMPI: {2, GasSlowStep},
EXP: {2, GasSlowStep},
ADDRESS: {0, GasQuickStep},
ORIGIN: {0, GasQuickStep},
CALLER: {0, GasQuickStep},
CALLVALUE: {0, GasQuickStep},
CODESIZE: {0, GasQuickStep},
GASPRICE: {0, GasQuickStep},
COINBASE: {0, GasQuickStep},
TIMESTAMP: {0, GasQuickStep},
NUMBER: {0, GasQuickStep},
CALLDATASIZE: {0, GasQuickStep},
DIFFICULTY: {0, GasQuickStep},
GASLIMIT: {0, GasQuickStep},
POP: {0, GasQuickStep},
PC: {0, GasQuickStep},
MSIZE: {0, GasQuickStep},
GAS: {0, GasQuickStep},
BLOCKHASH: {1, GasExtStep},
BALANCE: {0, GasExtStep},
EXTCODESIZE: {1, GasExtStep},
EXTCODECOPY: {4, GasExtStep},
SLOAD: {1, GasStorageGet},
SSTORE: {2, Zero},
SHA3: {1, GasSha3Base},
CREATE: {3, GasCreate},
CALL: {7, GasCall},
CALLCODE: {7, GasCall},
JUMPDEST: {0, GasJumpDest},
SUICIDE: {1, Zero},
RETURN: {2, Zero},
}
func baseCheck(op OpCode, stack *Stack, gas *big.Int) {
if r, ok := _baseCheck[op]; ok {
stack.require(r.stack)
gas.Add(gas, r.gas)
}
}
func toWordSize(size *big.Int) *big.Int {
tmp := new(big.Int)
tmp.Add(size, u256(31))
tmp.Div(tmp, u256(32))
return tmp
}
func (self *Vm) calculateGasAndSize(context *Context, caller ContextRef, op OpCode, statedb *state.StateDB, mem *Memory, stack *Stack) (*big.Int, *big.Int) {
var ( var (
gas = new(big.Int) gas = new(big.Int)
newMemSize *big.Int = new(big.Int) newMemSize *big.Int = new(big.Int)
) )
baseCheck(op, stack, gas) baseCheck(op, stack, gas)
// Stack Check, memory resize & gas phase // stack Check, memory resize & gas phase
switch op { switch op {
case PUSH1, PUSH2, PUSH3, PUSH4, PUSH5, PUSH6, PUSH7, PUSH8, PUSH9, PUSH10, PUSH11, PUSH12, PUSH13, PUSH14, PUSH15, PUSH16, PUSH17, PUSH18, PUSH19, PUSH20, PUSH21, PUSH22, PUSH23, PUSH24, PUSH25, PUSH26, PUSH27, PUSH28, PUSH29, PUSH30, PUSH31, PUSH32: case PUSH1, PUSH2, PUSH3, PUSH4, PUSH5, PUSH6, PUSH7, PUSH8, PUSH9, PUSH10, PUSH11, PUSH12, PUSH13, PUSH14, PUSH15, PUSH16, PUSH17, PUSH18, PUSH19, PUSH20, PUSH21, PUSH22, PUSH23, PUSH24, PUSH25, PUSH26, PUSH27, PUSH28, PUSH29, PUSH30, PUSH31, PUSH32:
gas.Set(GasFastestStep) gas.Set(GasFastestStep)
@ -879,7 +760,7 @@ func (self *Vm) calculateGasAndSize(context *Context, caller ContextRef, op OpCo
n := int(op - LOG0) n := int(op - LOG0)
stack.require(n + 2) stack.require(n + 2)
mSize, mStart := stack.Peekn() mSize, mStart := stack.data[stack.len()-2], stack.data[stack.len()-1]
gas.Add(gas, GasLogBase) gas.Add(gas, GasLogBase)
gas.Add(gas, new(big.Int).Mul(big.NewInt(int64(n)), GasLogTopic)) gas.Add(gas, new(big.Int).Mul(big.NewInt(int64(n)), GasLogTopic))
@ -887,12 +768,12 @@ func (self *Vm) calculateGasAndSize(context *Context, caller ContextRef, op OpCo
newMemSize = calcMemSize(mStart, mSize) newMemSize = calcMemSize(mStart, mSize)
case EXP: case EXP:
gas.Add(gas, new(big.Int).Mul(big.NewInt(int64(len(stack.data[stack.Len()-2].Bytes()))), GasExpByte)) gas.Add(gas, new(big.Int).Mul(big.NewInt(int64(len(stack.data[stack.len()-2].Bytes()))), GasExpByte))
case SSTORE: case SSTORE:
stack.require(2) stack.require(2)
var g *big.Int var g *big.Int
y, x := stack.Peekn() y, x := stack.data[stack.len()-2], stack.data[stack.len()-1]
val := statedb.GetState(context.Address(), x.Bytes()) val := statedb.GetState(context.Address(), x.Bytes())
if len(val) == 0 && len(y.Bytes()) > 0 { if len(val) == 0 && len(y.Bytes()) > 0 {
// 0 => non 0 // 0 => non 0
@ -911,51 +792,51 @@ func (self *Vm) calculateGasAndSize(context *Context, caller ContextRef, op OpCo
statedb.Refund(self.env.Origin(), RefundSuicide) statedb.Refund(self.env.Origin(), RefundSuicide)
} }
case MLOAD: case MLOAD:
newMemSize = calcMemSize(stack.Peek(), u256(32)) newMemSize = calcMemSize(stack.peek(), u256(32))
case MSTORE8: case MSTORE8:
newMemSize = calcMemSize(stack.Peek(), u256(1)) newMemSize = calcMemSize(stack.peek(), u256(1))
case MSTORE: case MSTORE:
newMemSize = calcMemSize(stack.Peek(), u256(32)) newMemSize = calcMemSize(stack.peek(), u256(32))
case RETURN: case RETURN:
newMemSize = calcMemSize(stack.Peek(), stack.data[stack.Len()-2]) newMemSize = calcMemSize(stack.peek(), stack.data[stack.len()-2])
case SHA3: case SHA3:
newMemSize = calcMemSize(stack.Peek(), stack.data[stack.Len()-2]) newMemSize = calcMemSize(stack.peek(), stack.data[stack.len()-2])
words := toWordSize(stack.data[stack.Len()-2]) words := toWordSize(stack.data[stack.len()-2])
gas.Add(gas, words.Mul(words, GasSha3Word)) gas.Add(gas, words.Mul(words, GasSha3Word))
case CALLDATACOPY: case CALLDATACOPY:
newMemSize = calcMemSize(stack.Peek(), stack.data[stack.Len()-3]) newMemSize = calcMemSize(stack.peek(), stack.data[stack.len()-3])
words := toWordSize(stack.data[stack.Len()-3]) words := toWordSize(stack.data[stack.len()-3])
gas.Add(gas, words.Mul(words, GasCopyWord)) gas.Add(gas, words.Mul(words, GasCopyWord))
case CODECOPY: case CODECOPY:
newMemSize = calcMemSize(stack.Peek(), stack.data[stack.Len()-3]) newMemSize = calcMemSize(stack.peek(), stack.data[stack.len()-3])
words := toWordSize(stack.data[stack.Len()-3]) words := toWordSize(stack.data[stack.len()-3])
gas.Add(gas, words.Mul(words, GasCopyWord)) gas.Add(gas, words.Mul(words, GasCopyWord))
case EXTCODECOPY: case EXTCODECOPY:
newMemSize = calcMemSize(stack.data[stack.Len()-2], stack.data[stack.Len()-4]) newMemSize = calcMemSize(stack.data[stack.len()-2], stack.data[stack.len()-4])
words := toWordSize(stack.data[stack.Len()-4]) words := toWordSize(stack.data[stack.len()-4])
gas.Add(gas, words.Mul(words, GasCopyWord)) gas.Add(gas, words.Mul(words, GasCopyWord))
case CREATE: case CREATE:
newMemSize = calcMemSize(stack.data[stack.Len()-2], stack.data[stack.Len()-3]) newMemSize = calcMemSize(stack.data[stack.len()-2], stack.data[stack.len()-3])
case CALL, CALLCODE: case CALL, CALLCODE:
gas.Add(gas, stack.data[stack.Len()-1]) gas.Add(gas, stack.data[stack.len()-1])
if op == CALL { if op == CALL {
if self.env.State().GetStateObject(stack.data[stack.Len()-2].Bytes()) == nil { if self.env.State().GetStateObject(stack.data[stack.len()-2].Bytes()) == nil {
gas.Add(gas, GasCallNewAccount) gas.Add(gas, GasCallNewAccount)
} }
} }
if len(stack.data[stack.Len()-3].Bytes()) > 0 { if len(stack.data[stack.len()-3].Bytes()) > 0 {
gas.Add(gas, GasCallValueTransfer) gas.Add(gas, GasCallValueTransfer)
} }
x := calcMemSize(stack.data[stack.Len()-6], stack.data[stack.Len()-7]) x := calcMemSize(stack.data[stack.len()-6], stack.data[stack.len()-7])
y := calcMemSize(stack.data[stack.Len()-4], stack.data[stack.Len()-5]) y := calcMemSize(stack.data[stack.len()-4], stack.data[stack.len()-5])
newMemSize = ethutil.BigMax(x, y) newMemSize = ethutil.BigMax(x, y)
} }