diff options
Diffstat (limited to 'vm/common.go')
| -rw-r--r-- | vm/common.go | 87 |
1 files changed, 21 insertions, 66 deletions
diff --git a/vm/common.go b/vm/common.go index 90c3361de..8d8f4253f 100644 --- a/vm/common.go +++ b/vm/common.go @@ -18,8 +18,23 @@ type Type byte const ( StdVmTy Type = iota JitVmTy - MaxVmTy + + MaxCallDepth = 1025 + + LogTyPretty byte = 0x1 + LogTyDiff byte = 0x2 +) + +var ( + Pow256 = common.BigPow(2, 256) + + U256 = common.U256 + S256 = common.S256 + + Zero = common.Big0 + + max = big.NewInt(math.MaxInt64) ) func NewVm(env Environment) VirtualMachine { @@ -34,67 +49,6 @@ func NewVm(env Environment) VirtualMachine { } } -var ( - GasQuickStep = big.NewInt(2) - GasFastestStep = big.NewInt(3) - GasFastStep = big.NewInt(5) - GasMidStep = big.NewInt(8) - GasSlowStep = big.NewInt(10) - GasExtStep = big.NewInt(20) - - GasStorageGet = big.NewInt(50) - GasStorageAdd = big.NewInt(20000) - GasStorageMod = big.NewInt(5000) - GasLogBase = big.NewInt(375) - GasLogTopic = big.NewInt(375) - GasLogByte = big.NewInt(8) - GasCreate = big.NewInt(32000) - GasCreateByte = big.NewInt(200) - GasCall = big.NewInt(40) - GasCallValueTransfer = big.NewInt(9000) - GasStipend = big.NewInt(2300) - GasCallNewAccount = big.NewInt(25000) - GasReturn = big.NewInt(0) - GasStop = big.NewInt(0) - GasJumpDest = big.NewInt(1) - - RefundStorage = big.NewInt(15000) - RefundSuicide = big.NewInt(24000) - - GasMemWord = big.NewInt(3) - GasQuadCoeffDenom = big.NewInt(512) - GasContractByte = big.NewInt(200) - GasTransaction = big.NewInt(21000) - GasTxDataNonzeroByte = big.NewInt(68) - GasTxDataZeroByte = big.NewInt(4) - GasTx = big.NewInt(21000) - GasExp = big.NewInt(10) - GasExpByte = big.NewInt(10) - - GasSha3Base = big.NewInt(30) - GasSha3Word = big.NewInt(6) - GasSha256Base = big.NewInt(60) - GasSha256Word = big.NewInt(12) - GasRipemdBase = big.NewInt(600) - GasRipemdWord = big.NewInt(12) - GasEcrecover = big.NewInt(3000) - GasIdentityBase = big.NewInt(15) - GasIdentityWord = big.NewInt(3) - GasCopyWord = big.NewInt(3) - - Pow256 = common.BigPow(2, 256) - - LogTyPretty byte = 0x1 - LogTyDiff byte = 0x2 - - U256 = common.U256 - S256 = common.S256 - - Zero = common.Big0 -) - -const MaxCallDepth = 1025 - func calcMemSize(off, l *big.Int) *big.Int { if l.Cmp(common.Big0) == 0 { return common.Big0 @@ -119,9 +73,10 @@ func toValue(val *big.Int) interface{} { return val } -func getData(data []byte, start, size uint64) []byte { - x := uint64(math.Min(float64(start), float64(len(data)))) - y := uint64(math.Min(float64(x+size), float64(len(data)))) +func getData(data []byte, start, size *big.Int) []byte { + dlen := big.NewInt(int64(len(data))) - return common.RightPadBytes(data[x:y], int(size)) + s := common.BigMin(start, dlen) + e := common.BigMin(new(big.Int).Add(s, size), dlen) + return common.RightPadBytes(data[s.Uint64():e.Uint64()], int(size.Uint64())) } |