mirror of https://github.com/status-im/op-geth.git
43 lines
1.2 KiB
Go
43 lines
1.2 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
|
|
|
|
import (
|
|
"github.com/ethereum/go-ethereum/params"
|
|
)
|
|
|
|
func minSwapStack(n int) int {
|
|
return minStack(n, n)
|
|
}
|
|
func maxSwapStack(n int) int {
|
|
return maxStack(n, n)
|
|
}
|
|
|
|
func minDupStack(n int) int {
|
|
return minStack(n, n+1)
|
|
}
|
|
func maxDupStack(n int) int {
|
|
return maxStack(n, n+1)
|
|
}
|
|
|
|
func maxStack(pop, push int) int {
|
|
return int(params.StackLimit) + pop - push
|
|
}
|
|
func minStack(pops, push int) int {
|
|
return pops
|
|
}
|