github.com/theQRL/go-zond@v0.1.1/core/vm/stack_table.go (about)

     1  // Copyright 2017 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package vm
    18  
    19  import (
    20  	"github.com/theQRL/go-zond/params"
    21  )
    22  
    23  func minSwapStack(n int) int {
    24  	return minStack(n, n)
    25  }
    26  func maxSwapStack(n int) int {
    27  	return maxStack(n, n)
    28  }
    29  
    30  func minDupStack(n int) int {
    31  	return minStack(n, n+1)
    32  }
    33  func maxDupStack(n int) int {
    34  	return maxStack(n, n+1)
    35  }
    36  
    37  func maxStack(pop, push int) int {
    38  	return int(params.StackLimit) + pop - push
    39  }
    40  func minStack(pops, push int) int {
    41  	return pops
    42  }