85 lines
2.3 KiB
Go
85 lines
2.3 KiB
Go
// Copyright 2017 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package vm
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import (
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"math/big"
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"github.com/ethereum/go-ethereum/common/math"
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)
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func memorySha3(stack *Stack) *big.Int {
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return calcMemSize(stack.Back(0), stack.Back(1))
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}
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func memoryCalldataCopy(stack *Stack) *big.Int {
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return calcMemSize(stack.Back(0), stack.Back(2))
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}
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func memoryCodeCopy(stack *Stack) *big.Int {
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return calcMemSize(stack.Back(0), stack.Back(2))
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}
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func memoryExtCodeCopy(stack *Stack) *big.Int {
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return calcMemSize(stack.Back(1), stack.Back(3))
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}
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func memoryMLoad(stack *Stack) *big.Int {
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return calcMemSize(stack.Back(0), big.NewInt(32))
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}
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func memoryMStore8(stack *Stack) *big.Int {
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return calcMemSize(stack.Back(0), big.NewInt(1))
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}
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func memoryMStore(stack *Stack) *big.Int {
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return calcMemSize(stack.Back(0), big.NewInt(32))
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}
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func memoryCreate(stack *Stack) *big.Int {
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return calcMemSize(stack.Back(1), stack.Back(2))
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}
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func memoryCall(stack *Stack) *big.Int {
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x := calcMemSize(stack.Back(5), stack.Back(6))
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y := calcMemSize(stack.Back(3), stack.Back(4))
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return math.BigMax(x, y)
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}
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func memoryCallCode(stack *Stack) *big.Int {
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x := calcMemSize(stack.Back(5), stack.Back(6))
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y := calcMemSize(stack.Back(3), stack.Back(4))
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return math.BigMax(x, y)
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}
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func memoryDelegateCall(stack *Stack) *big.Int {
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x := calcMemSize(stack.Back(4), stack.Back(5))
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y := calcMemSize(stack.Back(2), stack.Back(3))
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return math.BigMax(x, y)
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}
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func memoryReturn(stack *Stack) *big.Int {
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return calcMemSize(stack.Back(0), stack.Back(1))
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}
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func memoryLog(stack *Stack) *big.Int {
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mSize, mStart := stack.Back(1), stack.Back(0)
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return calcMemSize(mStart, mSize)
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}
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