go-pulse/vm/common.go
obscuren 29b8a0bc5f Updated the VM & VM tests
* Stack Error shouldn't revert to previous state
* Updated VM Test tool
* Added Transfer method to VM Env
2014-10-23 01:01:26 +02:00

67 lines
1.1 KiB
Go

package vm
import (
"math/big"
"github.com/ethereum/eth-go/ethlog"
"github.com/ethereum/eth-go/ethutil"
)
var vmlogger = ethlog.NewLogger("VM")
type Type int
const (
StandardVmTy Type = iota
DebugVmTy
MaxVmTy
)
var (
GasStep = big.NewInt(1)
GasSha = big.NewInt(20)
GasSLoad = big.NewInt(20)
GasSStore = big.NewInt(100)
GasBalance = big.NewInt(20)
GasCreate = big.NewInt(100)
GasCall = big.NewInt(20)
GasMemory = big.NewInt(1)
GasData = big.NewInt(5)
GasTx = big.NewInt(500)
Pow256 = ethutil.BigPow(2, 256)
LogTyPretty byte = 0x1
LogTyDiff byte = 0x2
U256 = ethutil.U256
S256 = ethutil.S256
)
const MaxCallDepth = 1025
func calcMemSize(off, l *big.Int) *big.Int {
if l.Cmp(ethutil.Big0) == 0 {
return ethutil.Big0
}
return new(big.Int).Add(off, l)
}
// Simple helper
func u256(n int64) *big.Int {
return big.NewInt(n)
}
// Mainly used for print variables and passing to Print*
func toValue(val *big.Int) interface{} {
// Let's assume a string on right padded zero's
b := val.Bytes()
if b[0] != 0 && b[len(b)-1] == 0x0 && b[len(b)-2] == 0x0 {
return string(b)
}
return val
}