/*
* Copyright (C) 2010-2016 JPEXS, All rights reserved.
*
* This 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 3.0 of the License, or (at your option) any later version.
*
* This 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 this library.
*/
package com.jpexs.decompiler.flash.abc.avm2.instructions.stack;
import com.jpexs.decompiler.flash.abc.ABC;
import com.jpexs.decompiler.flash.abc.AVM2LocalData;
import com.jpexs.decompiler.flash.abc.avm2.AVM2ConstantPool;
import com.jpexs.decompiler.flash.abc.avm2.LocalDataArea;
import com.jpexs.decompiler.flash.abc.avm2.instructions.AVM2Instruction;
import com.jpexs.decompiler.flash.abc.avm2.instructions.InstructionDefinition;
import com.jpexs.decompiler.graph.GraphSourceItemPos;
import com.jpexs.decompiler.graph.GraphTargetItem;
import com.jpexs.decompiler.graph.TranslateStack;
import java.util.List;
/**
*
* @author JPEXS
*/
public class SwapIns extends InstructionDefinition {
public SwapIns() {
super(0x2b, "swap", new int[]{}, false);
}
@Override
public boolean execute(LocalDataArea lda, AVM2ConstantPool constants, AVM2Instruction ins) {
Object obj1 = lda.operandStack.pop();
Object obj2 = lda.operandStack.pop();
lda.operandStack.push(obj1);
lda.operandStack.push(obj2);
return true;
}
@Override
public void translate(AVM2LocalData localData, TranslateStack stack, AVM2Instruction ins, List<GraphTargetItem> output, String path) {
GraphTargetItem o1 = stack.pop();
GraphTargetItem o2 = stack.pop();
stack.push(o1);
stack.push(o2);
o1.getMoreSrc().add(new GraphSourceItemPos(ins, 0));
o2.getMoreSrc().add(new GraphSourceItemPos(ins, 0));
}
@Override
public int getStackPopCount(AVM2Instruction ins, ABC abc) {
return 2;
}
@Override
public int getStackPushCount(AVM2Instruction ins, ABC abc) {
return 2;
}
}