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Redone rlp

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This commit is contained in:
obscuren 2015-03-03 11:18:50 +01:00
parent 2f647c443a
commit fa910966ed
2 changed files with 5 additions and 8 deletions
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2
tests/vm/gh_test.go
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@ -80,7 +80,7 @@ func RunVmTest(p string, t *testing.T) {
for name, test := range tests {
helper.Logger.SetLogLevel(4)
if name != "env1" {
if name != "mul7" {
continue
}
db, _ := ethdb.NewMemDatabase()

11
vm/vm.go
View File

@ -844,7 +844,7 @@ func baseCheck(op OpCode, stack *Stack, gas *big.Int) {
func toWordSize(size *big.Int) *big.Int {
tmp := new(big.Int)
tmp.Add(tmp, u256(31))
tmp.Add(size, u256(31))
tmp.Div(tmp, u256(32))
return tmp
}
@ -951,9 +951,7 @@ func (self *Vm) calculateGasAndSize(context *Context, caller ContextRef, op OpCo
}
if newMemSize.Cmp(ethutil.Big0) > 0 {
newMemSize.Add(newMemSize, u256(31))
newMemSize.Div(newMemSize, u256(32))
newMemSize.Mul(newMemSize, u256(32))
newMemSize = toWordSize(newMemSize)
if newMemSize.Cmp(u256(int64(mem.Len()))) > 0 {
//memGasUsage := new(big.Int).Sub(newMemSize, u256(int64(mem.Len())))
@ -961,15 +959,14 @@ func (self *Vm) calculateGasAndSize(context *Context, caller ContextRef, op OpCo
//memGasUsage.Div(memGasUsage, u256(32))
//Old: full_memory_gas_cost = W + floor(W*W / 1024), W = words in memory
pow := new(big.Int).Exp(oldSize, ethutil.Big2, Zero)
oldSize := toWordSize(big.NewInt(int64(mem.Len())))
linCoef := new(big.Int).Mul(oldSize, GasMemWord)
pow := new(big.Int)
pow.Exp(oldSize, ethutil.Big2, Zero)
quadCoef := new(big.Int).Div(pow, GasQuadCoeffDenom)
oldTotalFee := new(big.Int).Add(linCoef, quadCoef)
linCoef = new(big.Int).Mul(newMemSize, GasMemWord)
pow.Exp(newMemSize, ethutil.Big2, Zero)
linCoef = new(big.Int).Mul(newMemSize, GasMemWord)
quadCoef = new(big.Int).Div(pow, GasQuadCoeffDenom)
newTotalFee := new(big.Int).Add(linCoef, quadCoef)