forked from cerc-io/plugeth
7504dbd6eb
* core/vm: remove function call for stack validation from evm runloop * core/vm: separate gas calc into static + dynamic * core/vm: optimize push1 * core/vm: reuse pooled bigints for ADDRESS, ORIGIN and CALLER * core/vm: use generic error message for jump/jumpi, to avoid string interpolation * testdata: fix tests for new error message * core/vm: use 64-bit memory calculations * core/vm: fix error in memory calculation * core/vm: address review concerns * core/vm: avoid unnecessary use of big.Int:BitLen()
43 lines
1.2 KiB
Go
43 lines
1.2 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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"github.com/ethereum/go-ethereum/params"
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)
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func minSwapStack(n int) int {
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return minStack(n, n)
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}
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func maxSwapStack(n int) int {
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return maxStack(n, n)
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}
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func minDupStack(n int) int {
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return minStack(n, n+1)
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}
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func maxDupStack(n int) int {
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return maxStack(n, n+1)
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}
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func maxStack(pop, push int) int {
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return int(params.StackLimit) + pop - push
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}
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func minStack(pops, push int) int {
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return pops
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}
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