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| author | obscuren <geffobscura@gmail.com> | 2015-03-03 18:18:50 +0800 |
|---|---|---|
| committer | obscuren <geffobscura@gmail.com> | 2015-03-03 18:18:50 +0800 |
| commit | fa910966ede699f90b2760d7a11ac0ef5dbda029 (patch) | |
| tree | 0e75b1ad8ee2c6431d05335c72fc061bbe505727 /vm | |
| parent | 2f647c443a6faf3a0639f9e54fdd262fe917b49b (diff) | |
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Redone rlp
Diffstat (limited to 'vm')
| -rw-r--r-- | vm/vm.go | 11 |
1 files changed, 4 insertions, 7 deletions
@@ -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) |