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This commit is contained in:
obscuren 2014-05-06 17:43:27 +02:00
parent af6875f4b2
commit a0af7de58e
3 changed files with 125 additions and 55 deletions
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16
ethchain/asm.go
View File

@ -21,7 +21,7 @@ func Disassemble(script []byte) (asm []string) {
asm = append(asm, fmt.Sprintf("%v", op))
switch op {
case oPUSH: // Push PC+1 on to the stack
case oPUSH32: // Push PC+1 on to the stack
pc.Add(pc, ethutil.Big1)
data := script[pc.Int64() : pc.Int64()+32]
val := ethutil.BigD(data)
@ -36,20 +36,6 @@ func Disassemble(script []byte) (asm []string) {
asm = append(asm, fmt.Sprintf("0x%x", b))
pc.Add(pc, big.NewInt(31))
case oPUSH20:
pc.Add(pc, ethutil.Big1)
data := script[pc.Int64() : pc.Int64()+20]
val := ethutil.BigD(data)
var b []byte
if val.Int64() == 0 {
b = []byte{0}
} else {
b = val.Bytes()
}
asm = append(asm, fmt.Sprintf("0x%x", b))
pc.Add(pc, big.NewInt(19))
}
pc.Add(pc, ethutil.Big1)

134
ethchain/types.go
View File

@ -48,8 +48,6 @@ const (
oGASLIMIT = 0x45
// 0x50 range - 'storage' and execution
oPUSH = 0x50
oPUSH20 = 0x80
oPOP = 0x51
oDUP = 0x52
oSWAP = 0x53
@ -63,14 +61,48 @@ const (
oPC = 0x5b
oMSIZE = 0x5c
// 0x60 range - closures
oCREATE = 0x60
oCALL = 0x61
oRETURN = 0x62
// 0x60 range
oPUSH1 = 0x60
oPUSH2 = 0x61
oPUSH3 = 0x62
oPUSH4 = 0x63
oPUSH5 = 0x64
oPUSH6 = 0x65
oPUSH7 = 0x66
oPUSH8 = 0x67
oPUSH9 = 0x68
oPUSH10 = 0x69
oPUSH11 = 0x6a
oPUSH12 = 0x6b
oPUSH13 = 0x6c
oPUSH14 = 0x6d
oPUSH15 = 0x6e
oPUSH16 = 0x6f
oPUSH17 = 0x70
oPUSH18 = 0x71
oPUSH19 = 0x72
oPUSH20 = 0x73
oPUSH21 = 0x74
oPUSH22 = 0x75
oPUSH23 = 0x76
oPUSH24 = 0x77
oPUSH25 = 0x78
oPUSH26 = 0x79
oPUSH27 = 0x7a
oPUSH28 = 0x7b
oPUSH29 = 0x7c
oPUSH30 = 0x7d
oPUSH31 = 0x7e
oPUSH32 = 0x7f
// 0xf0 range - closures
oCREATE = 0xf0
oCALL = 0xf2
oRETURN = 0xf3
// 0x70 range - other
oLOG = 0x70 // XXX Unofficial
oSUICIDE = 0x7f
oLOG = 0xfe // XXX Unofficial
oSUICIDE = 0xff
)
// Since the opcodes aren't all in order we can't use a regular slice
@ -119,8 +151,6 @@ var opCodeToString = map[OpCode]string{
oGASLIMIT: "GASLIMIT",
// 0x50 range - 'storage' and execution
oPUSH: "PUSH",
oPOP: "POP",
oDUP: "DUP",
oSWAP: "SWAP",
oMLOAD: "MLOAD",
@ -133,7 +163,41 @@ var opCodeToString = map[OpCode]string{
oPC: "PC",
oMSIZE: "MSIZE",
// 0x60 range - closures
// 0x60 range - push
oPUSH1: "PUSH1",
oPUSH2: "PUSH2",
oPUSH3: "PUSH3",
oPUSH4: "PUSH4",
oPUSH5: "PUSH5",
oPUSH6: "PUSH6",
oPUSH7: "PUSH7",
oPUSH8: "PUSH8",
oPUSH9: "PUSH9",
oPUSH10: "PUSH10",
oPUSH11: "PUSH11",
oPUSH12: "PUSH12",
oPUSH13: "PUSH13",
oPUSH14: "PUSH14",
oPUSH15: "PUSH15",
oPUSH16: "PUSH16",
oPUSH17: "PUSH17",
oPUSH18: "PUSH18",
oPUSH19: "PUSH19",
oPUSH20: "PUSH20",
oPUSH21: "PUSH21",
oPUSH22: "PUSH22",
oPUSH23: "PUSH23",
oPUSH24: "PUSH24",
oPUSH25: "PUSH25",
oPUSH26: "PUSH26",
oPUSH27: "PUSH27",
oPUSH28: "PUSH28",
oPUSH29: "PUSH29",
oPUSH30: "PUSH30",
oPUSH31: "PUSH31",
oPUSH32: "PUSH32",
// 0xf0 range
oCREATE: "CREATE",
oCALL: "CALL",
oRETURN: "RETURN",
@ -193,10 +257,6 @@ var OpCodes = map[string]byte{
"GASLIMIT": 0x45,
// 0x50 range - 'storage' and execution
"PUSH": 0x50,
"PUSH20": 0x80,
"POP": 0x51,
"DUP": 0x52,
"SWAP": 0x53,
@ -210,13 +270,47 @@ var OpCodes = map[string]byte{
"PC": 0x5b,
"MSIZE": 0x5c,
// 0x60 range - closures
"CREATE": 0x60,
"CALL": 0x61,
"RETURN": 0x62,
// 0x70 range - 'push'
"PUSH1": 0x60,
"PUSH2": 0x61,
"PUSH3": 0x62,
"PUSH4": 0x63,
"PUSH5": 0x64,
"PUSH6": 0x65,
"PUSH7": 0x66,
"PUSH8": 0x67,
"PUSH9": 0x68,
"PUSH10": 0x69,
"PUSH11": 0x6a,
"PUSH12": 0x6b,
"PUSH13": 0x6c,
"PUSH14": 0x6d,
"PUSH15": 0x6e,
"PUSH16": 0x6f,
"PUSH17": 0x70,
"PUSH18": 0x71,
"PUSH19": 0x72,
"PUSH20": 0x73,
"PUSH21": 0x74,
"PUSH22": 0x75,
"PUSH23": 0x76,
"PUSH24": 0x77,
"PUSH25": 0x78,
"PUSH26": 0x70,
"PUSH27": 0x7a,
"PUSH28": 0x7b,
"PUSH29": 0x7c,
"PUSH30": 0x7d,
"PUSH31": 0x7e,
"PUSH32": 0x7f,
// 0xf0 range - closures
"CREATE": 0xf0,
"CALL": 0xf1,
"RETURN": 0xf2,
// 0x70 range - other
"LOG": 0x70,
"LOG": 0xfe,
"SUICIDE": 0x7f,
}

30
ethchain/vm.go
View File

@ -95,6 +95,8 @@ func (vm *Vm) RunClosure(closure *Closure, hook DebugHook) (ret []byte, err erro
ethutil.Config.Log.Debugf("# op\n")
}
fmt.Println(closure.Script)
for {
// The base for all big integer arithmetic
base := new(big.Int)
@ -104,11 +106,9 @@ func (vm *Vm) RunClosure(closure *Closure, hook DebugHook) (ret []byte, err erro
val := closure.Get(pc)
// Get the opcode (it must be an opcode!)
op := OpCode(val.Uint())
/*
if ethutil.Config.Debug {
ethutil.Config.Log.Debugf("%-3d %-4s", pc, op.String())
}
*/
if ethutil.Config.Debug {
ethutil.Config.Log.Debugf("%-3d %-4s", pc, op.String())
}
gas := new(big.Int)
useGas := func(amount *big.Int) {
@ -352,27 +352,17 @@ func (vm *Vm) RunClosure(closure *Closure, hook DebugHook) (ret []byte, err erro
// TODO
stack.Push(big.NewInt(0))
// 0x50 range
case oPUSH: // Push PC+1 on to the stack
// 0x50 range
case oPUSH1, oPUSH2, oPUSH3, oPUSH4, oPUSH5, oPUSH6, oPUSH7, oPUSH8, oPUSH9, oPUSH10, oPUSH11, oPUSH12, oPUSH13, oPUSH14, oPUSH15, oPUSH16, oPUSH17, oPUSH18, oPUSH19, oPUSH20, oPUSH21, oPUSH22, oPUSH23, oPUSH24, oPUSH25, oPUSH26, oPUSH27, oPUSH28, oPUSH29, oPUSH30, oPUSH31, oPUSH32:
a := big.NewInt(int64(op) - int64(oPUSH1) + 1)
pc.Add(pc, ethutil.Big1)
data := closure.Gets(pc, big.NewInt(32))
data := closure.Gets(pc, a)
val := ethutil.BigD(data.Bytes())
// Push value to stack
stack.Push(val)
pc.Add(pc, big.NewInt(31))
pc.Add(pc, a.Sub(a, big.NewInt(1)))
step++
case oPUSH20:
pc.Add(pc, ethutil.Big1)
data := closure.Gets(pc, big.NewInt(20))
val := ethutil.BigD(data.Bytes())
// Push value to stack
stack.Push(val)
pc.Add(pc, big.NewInt(19))
step++
case oPOP:
require(1)
stack.Pop()