5c9cbc218a
Implements [EIP 5656](https://eips.ethereum.org/EIPS/eip-5656), MCOPY instruction, and enables it for Cancun. --------- Co-authored-by: Martin Holst Swende <martin@swende.se>
122 lines
3.2 KiB
Go
122 lines
3.2 KiB
Go
// Copyright 2017 The go-ethereum Authors
|
|
// This file is part of the go-ethereum library.
|
|
//
|
|
// The go-ethereum library is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// The go-ethereum library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public License
|
|
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package vm
|
|
|
|
func memoryKeccak256(stack *Stack) (uint64, bool) {
|
|
return calcMemSize64(stack.Back(0), stack.Back(1))
|
|
}
|
|
|
|
func memoryCallDataCopy(stack *Stack) (uint64, bool) {
|
|
return calcMemSize64(stack.Back(0), stack.Back(2))
|
|
}
|
|
|
|
func memoryReturnDataCopy(stack *Stack) (uint64, bool) {
|
|
return calcMemSize64(stack.Back(0), stack.Back(2))
|
|
}
|
|
|
|
func memoryCodeCopy(stack *Stack) (uint64, bool) {
|
|
return calcMemSize64(stack.Back(0), stack.Back(2))
|
|
}
|
|
|
|
func memoryExtCodeCopy(stack *Stack) (uint64, bool) {
|
|
return calcMemSize64(stack.Back(1), stack.Back(3))
|
|
}
|
|
|
|
func memoryMLoad(stack *Stack) (uint64, bool) {
|
|
return calcMemSize64WithUint(stack.Back(0), 32)
|
|
}
|
|
|
|
func memoryMStore8(stack *Stack) (uint64, bool) {
|
|
return calcMemSize64WithUint(stack.Back(0), 1)
|
|
}
|
|
|
|
func memoryMStore(stack *Stack) (uint64, bool) {
|
|
return calcMemSize64WithUint(stack.Back(0), 32)
|
|
}
|
|
|
|
func memoryMcopy(stack *Stack) (uint64, bool) {
|
|
mStart := stack.Back(0) // stack[0]: dest
|
|
if stack.Back(1).Gt(mStart) {
|
|
mStart = stack.Back(1) // stack[1]: source
|
|
}
|
|
return calcMemSize64(mStart, stack.Back(2)) // stack[2]: length
|
|
}
|
|
|
|
func memoryCreate(stack *Stack) (uint64, bool) {
|
|
return calcMemSize64(stack.Back(1), stack.Back(2))
|
|
}
|
|
|
|
func memoryCreate2(stack *Stack) (uint64, bool) {
|
|
return calcMemSize64(stack.Back(1), stack.Back(2))
|
|
}
|
|
|
|
func memoryCall(stack *Stack) (uint64, bool) {
|
|
x, overflow := calcMemSize64(stack.Back(5), stack.Back(6))
|
|
if overflow {
|
|
return 0, true
|
|
}
|
|
y, overflow := calcMemSize64(stack.Back(3), stack.Back(4))
|
|
if overflow {
|
|
return 0, true
|
|
}
|
|
if x > y {
|
|
return x, false
|
|
}
|
|
return y, false
|
|
}
|
|
func memoryDelegateCall(stack *Stack) (uint64, bool) {
|
|
x, overflow := calcMemSize64(stack.Back(4), stack.Back(5))
|
|
if overflow {
|
|
return 0, true
|
|
}
|
|
y, overflow := calcMemSize64(stack.Back(2), stack.Back(3))
|
|
if overflow {
|
|
return 0, true
|
|
}
|
|
if x > y {
|
|
return x, false
|
|
}
|
|
return y, false
|
|
}
|
|
|
|
func memoryStaticCall(stack *Stack) (uint64, bool) {
|
|
x, overflow := calcMemSize64(stack.Back(4), stack.Back(5))
|
|
if overflow {
|
|
return 0, true
|
|
}
|
|
y, overflow := calcMemSize64(stack.Back(2), stack.Back(3))
|
|
if overflow {
|
|
return 0, true
|
|
}
|
|
if x > y {
|
|
return x, false
|
|
}
|
|
return y, false
|
|
}
|
|
|
|
func memoryReturn(stack *Stack) (uint64, bool) {
|
|
return calcMemSize64(stack.Back(0), stack.Back(1))
|
|
}
|
|
|
|
func memoryRevert(stack *Stack) (uint64, bool) {
|
|
return calcMemSize64(stack.Back(0), stack.Back(1))
|
|
}
|
|
|
|
func memoryLog(stack *Stack) (uint64, bool) {
|
|
return calcMemSize64(stack.Back(0), stack.Back(1))
|
|
}
|