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Update contracts.go

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Felix Lange 2025-06-05 16:07:56 +02:00 committed by GitHub
parent 9caab0d8de
commit 51f8da1d6e
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1 changed files with 4 additions and 3 deletions
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7
core/vm/contracts.go
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@ -441,14 +441,15 @@ func (c *bigModExp) RequiredGas(input []byte) uint64 {
maxLenOver32 := gas.Cmp(big32) > 0 maxLenOver32 := gas.Cmp(big32) > 0
if c.eip2565 { if c.eip2565 {
// EIP-2565 has three changes // EIP-2565 (Berlin fork) has three changes:
//
// 1. Different multComplexity (inlined here) // 1. Different multComplexity (inlined here)
// in EIP-2565 (https://eips.ethereum.org/EIPS/eip-2565): // in EIP-2565 (https://eips.ethereum.org/EIPS/eip-2565):
// //
// def mult_complexity(x): // def mult_complexity(x):
// ceiling(x/8)^2 // ceiling(x/8)^2
// //
//where is x is max(length_of_MODULUS, length_of_BASE) // where is x is max(length_of_MODULUS, length_of_BASE)
gas.Add(gas, big7) gas.Add(gas, big7)
gas.Rsh(gas, 3) gas.Rsh(gas, 3)
gas.Mul(gas, gas) gas.Mul(gas, gas)
@ -472,7 +473,7 @@ func (c *bigModExp) RequiredGas(input []byte) uint64 {
return max(minPrice, gas.Uint64()) return max(minPrice, gas.Uint64())
} }
// Pre-osaka logic. // Pre-Berlin logic.
gas = modexpMultComplexity(gas) gas = modexpMultComplexity(gas)
if adjExpLen.Cmp(big1) > 0 { if adjExpLen.Cmp(big1) > 0 {
gas.Mul(gas, adjExpLen) gas.Mul(gas, adjExpLen)