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-rw-r--r--ethchain/address.go10
-rw-r--r--ethchain/closure.go24
-rw-r--r--ethchain/stack.go52
-rw-r--r--ethchain/state_manager.go2
-rw-r--r--ethchain/vm.go33
-rw-r--r--ethchain/vm_test.go3
6 files changed, 79 insertions, 45 deletions
diff --git a/ethchain/address.go b/ethchain/address.go
index 9c6acbe08..0b3ef7c05 100644
--- a/ethchain/address.go
+++ b/ethchain/address.go
@@ -6,7 +6,7 @@ import (
)
type Account struct {
- Address []byte
+ address []byte
Amount *big.Int
Nonce uint64
}
@@ -16,7 +16,7 @@ func NewAccount(address []byte, amount *big.Int) *Account {
}
func NewAccountFromData(address, data []byte) *Account {
- account := &Account{Address: address}
+ account := &Account{address: address}
account.RlpDecode(data)
return account
@@ -30,11 +30,15 @@ func (a *Account) AddFunds(funds *big.Int) {
a.Amount.Add(a.Amount, funds)
}
+func (a *Account) Address() []byte {
+ return a.address
+}
+
// Implements Callee
func (a *Account) ReturnGas(value *big.Int, state *State) {
// Return the value back to the sender
a.AddFunds(value)
- state.UpdateAccount(a.Address, a)
+ state.UpdateAccount(a.address, a)
}
func (a *Account) RlpEncode() []byte {
diff --git a/ethchain/closure.go b/ethchain/closure.go
index 0eef866d0..f8e692f61 100644
--- a/ethchain/closure.go
+++ b/ethchain/closure.go
@@ -9,13 +9,13 @@ import (
type Callee interface {
ReturnGas(*big.Int, *State)
+ Address() []byte
}
type ClosureBody interface {
Callee
ethutil.RlpEncodable
GetMem(int64) *ethutil.Value
- Address() []byte
}
// Basic inline closure object which implement the 'closure' interface
@@ -24,8 +24,8 @@ type Closure struct {
object ClosureBody
State *State
- gas *big.Int
- val *big.Int
+ Gas *big.Int
+ Value *big.Int
Args []byte
}
@@ -45,6 +45,10 @@ func (c *Closure) GetMem(x int64) *ethutil.Value {
return m
}
+func (c *Closure) Address() []byte {
+ return c.object.Address()
+}
+
func (c *Closure) Call(vm *Vm, args []byte) []byte {
c.Args = args
@@ -56,9 +60,9 @@ func (c *Closure) Return(ret []byte) []byte {
// If no callee is present return it to
// the origin (i.e. contract or tx)
if c.callee != nil {
- c.callee.ReturnGas(c.gas, c.State)
+ c.callee.ReturnGas(c.Gas, c.State)
} else {
- c.object.ReturnGas(c.gas, c.State)
+ c.object.ReturnGas(c.Gas, c.State)
// TODO incase it's a POST contract we gotta serialise the contract again.
// But it's not yet defined
}
@@ -69,9 +73,13 @@ func (c *Closure) Return(ret []byte) []byte {
// Implement the Callee interface
func (c *Closure) ReturnGas(gas *big.Int, state *State) {
// Return the gas to the closure
- c.gas.Add(c.gas, gas)
+ c.Gas.Add(c.Gas, gas)
+}
+
+func (c *Closure) Object() ClosureBody {
+ return c.object
}
-func (c *Closure) GetGas() *big.Int {
- return c.gas
+func (c *Closure) Callee() Callee {
+ return c.callee
}
diff --git a/ethchain/stack.go b/ethchain/stack.go
index c75d02dda..b64b759fd 100644
--- a/ethchain/stack.go
+++ b/ethchain/stack.go
@@ -36,24 +36,22 @@ const (
oSHA3 = 0x20
// 0x30 range - closure state
- oADDRESS = 0x30
- oBALANCE = 0x31
- oORIGIN = 0x32
- oCALLER = 0x33
- oCALLVALUE = 0x34
- oCALLDATA = 0x35
- oCALLDATASIZE = 0x36
- oRETURNDATASIZE = 0x37
- oTXGASPRICE = 0x38
+ oADDRESS = 0x30
+ oBALANCE = 0x31
+ oORIGIN = 0x32
+ oCALLER = 0x33
+ oCALLVALUE = 0x34
+ oCALLDATA = 0x35
+ oCALLDATASIZE = 0x36
+ oGASPRICE = 0x37
// 0x40 range - block operations
oPREVHASH = 0x40
- oPREVNONCE = 0x41
- oCOINBASE = 0x42
- oTIMESTAMP = 0x43
- oNUMBER = 0x44
- oDIFFICULTY = 0x45
- oGASLIMIT = 0x46
+ oCOINBASE = 0x41
+ oTIMESTAMP = 0x42
+ oNUMBER = 0x43
+ oDIFFICULTY = 0x44
+ oGASLIMIT = 0x45
// 0x50 range - 'storage' and execution
oPUSH = 0x50
@@ -108,19 +106,17 @@ var opCodeToString = map[OpCode]string{
oSHA3: "SHA3",
// 0x30 range - closure state
- oADDRESS: "ADDRESS",
- oBALANCE: "BALANCE",
- oORIGIN: "ORIGIN",
- oCALLER: "CALLER",
- oCALLVALUE: "CALLVALUE",
- oCALLDATA: "CALLDATA",
- oCALLDATASIZE: "CALLDATASIZE",
- oRETURNDATASIZE: "RETURNDATASIZE",
- oTXGASPRICE: "TXGASPRICE",
+ oADDRESS: "ADDRESS",
+ oBALANCE: "BALANCE",
+ oORIGIN: "ORIGIN",
+ oCALLER: "CALLER",
+ oCALLVALUE: "CALLVALUE",
+ oCALLDATA: "CALLDATA",
+ oCALLDATASIZE: "CALLDATASIZE",
+ oGASPRICE: "TXGASPRICE",
// 0x40 range - block operations
oPREVHASH: "PREVHASH",
- oPREVNONCE: "PREVNONCE",
oCOINBASE: "COINBASE",
oTIMESTAMP: "TIMESTAMP",
oNUMBER: "NUMBER",
@@ -244,7 +240,11 @@ func (m *Memory) Get(offset, size int64) []byte {
func (m *Memory) Print() {
fmt.Println("### MEM ###")
if len(m.store) > 0 {
- fmt.Println(m.store)
+ addr := 0
+ for i := 0; i+32 < len(m.store); i += 32 {
+ fmt.Printf("%03d %v\n", addr, m.store[i:i+32])
+ addr++
+ }
} else {
fmt.Println("-- empty --")
}
diff --git a/ethchain/state_manager.go b/ethchain/state_manager.go
index 50c777349..3b5507740 100644
--- a/ethchain/state_manager.go
+++ b/ethchain/state_manager.go
@@ -308,7 +308,7 @@ func (sm *StateManager) ProcessContract(contract *Contract, tx *Transaction, blo
caller := sm.procState.GetAccount(tx.Sender())
closure := NewClosure(caller, contract, sm.procState, tx.Gas, tx.Value)
vm := NewVm(sm.procState, RuntimeVars{
- origin: caller.Address,
+ origin: caller.Address(),
blockNumber: block.BlockInfo().Number,
prevHash: block.PrevHash,
coinbase: block.Coinbase,
diff --git a/ethchain/vm.go b/ethchain/vm.go
index 3d2ee4c86..8b5bb93c0 100644
--- a/ethchain/vm.go
+++ b/ethchain/vm.go
@@ -40,7 +40,7 @@ var Pow256 = ethutil.BigPow(2, 256)
func (vm *Vm) RunClosure(closure *Closure) []byte {
// If the amount of gas supplied is less equal to 0
- if closure.GetGas().Cmp(big.NewInt(0)) <= 0 {
+ if closure.Gas.Cmp(big.NewInt(0)) <= 0 {
// TODO Do something
}
@@ -73,7 +73,7 @@ func (vm *Vm) RunClosure(closure *Closure) []byte {
fee := new(big.Int)
fee.Add(fee, big.NewInt(1000))
- if closure.GetGas().Cmp(fee) < 0 {
+ if closure.Gas.Cmp(fee) < 0 {
return closure.Return(nil)
}
@@ -192,25 +192,37 @@ func (vm *Vm) RunClosure(closure *Closure) []byte {
// 0x30 range
case oADDRESS:
+ stack.Push(ethutil.BigD(closure.Object().Address()))
case oBALANCE:
+ stack.Push(closure.Value)
case oORIGIN:
+ stack.Push(ethutil.BigD(vm.vars.origin))
case oCALLER:
+ stack.Push(ethutil.BigD(closure.Callee().Address()))
case oCALLVALUE:
+ // FIXME: Original value of the call, not the current value
+ stack.Push(closure.Value)
case oCALLDATA:
offset := stack.Pop()
mem.Set(offset.Int64(), int64(len(closure.Args)), closure.Args)
case oCALLDATASIZE:
- case oRETURNDATASIZE:
- case oTXGASPRICE:
+ stack.Push(big.NewInt(int64(len(closure.Args))))
+ case oGASPRICE:
+ // TODO
// 0x40 range
case oPREVHASH:
- case oPREVNONCE:
+ stack.Push(ethutil.BigD(vm.vars.prevHash))
case oCOINBASE:
+ stack.Push(ethutil.BigD(vm.vars.coinbase))
case oTIMESTAMP:
+ stack.Push(big.NewInt(vm.vars.time))
case oNUMBER:
+ stack.Push(big.NewInt(int64(vm.vars.blockNumber)))
case oDIFFICULTY:
+ stack.Push(vm.vars.diff)
case oGASLIMIT:
+ // TODO
// 0x50 range
case oPUSH: // Push PC+1 on to the stack
@@ -218,8 +230,13 @@ func (vm *Vm) RunClosure(closure *Closure) []byte {
val := closure.GetMem(pc).BigInt()
stack.Push(val)
case oPOP:
+ stack.Pop()
case oDUP:
+ stack.Push(stack.Peek())
case oSWAP:
+ x, y := stack.Popn()
+ stack.Push(y)
+ stack.Push(x)
case oMLOAD:
offset := stack.Pop()
stack.Push(ethutil.BigD(mem.Get(offset.Int64(), 32)))
@@ -228,7 +245,13 @@ func (vm *Vm) RunClosure(closure *Closure) []byte {
val, mStart := stack.Popn()
mem.Set(mStart.Int64(), 32, ethutil.BigToBytes(val, 256))
case oMSTORE8:
+ val, mStart := stack.Popn()
+ base.And(val, new(big.Int).SetInt64(0xff))
+ mem.Set(mStart.Int64(), 32, ethutil.BigToBytes(base, 256))
case oSLOAD:
+ loc := stack.Pop()
+ val := closure.GetMem(loc.Int64())
+ stack.Push(val.BigInt())
case oSSTORE:
case oJUMP:
case oJUMPI:
diff --git a/ethchain/vm_test.go b/ethchain/vm_test.go
index ce8c7a4de..16cbf51b7 100644
--- a/ethchain/vm_test.go
+++ b/ethchain/vm_test.go
@@ -126,7 +126,6 @@ func TestRun3(t *testing.T) {
"PUSH", "64",
"PUSH", "0",
- "LOG",
"RETURN",
})
tx := NewTransaction(ContractAddr, ethutil.Big("100000000000000000000000000000000000000000000000000"), script)
@@ -159,7 +158,7 @@ func TestRun3(t *testing.T) {
callerClosure := NewClosure(account, MakeContract(callerTx, state), state, big.NewInt(1000000000), new(big.Int))
vm := NewVm(state, RuntimeVars{
- origin: account.Address,
+ origin: account.Address(),
blockNumber: 1,
prevHash: ethutil.FromHex("5e20a0453cecd065ea59c37ac63e079ee08998b6045136a8ce6635c7912ec0b6"),
coinbase: ethutil.FromHex("2adc25665018aa1fe0e6bc666dac8fc2697ff9ba"),
generated by cgit (git 2.34.1) at 2024-11-13 00:10:09 +0800