/*
Copyright 2011-2016 Google Inc. All Rights Reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package com.google.security.zynamics.reil.translators.arm;
import com.google.security.zynamics.reil.OperandSize;
import com.google.security.zynamics.reil.ReilHelpers;
import com.google.security.zynamics.reil.ReilInstruction;
import com.google.security.zynamics.reil.translators.ITranslationEnvironment;
import com.google.security.zynamics.reil.translators.InternalTranslationException;
import com.google.security.zynamics.reil.translators.TranslationHelpers;
import com.google.security.zynamics.zylib.disassembly.IInstruction;
import com.google.security.zynamics.zylib.disassembly.IOperandTreeNode;
import java.util.List;
public class THUMBMovTranslator extends ARMBaseTranslator {
@Override
protected void translateCore(final ITranslationEnvironment environment,
final IInstruction instruction, final List<ReilInstruction> instructions) {
final IOperandTreeNode registerOperand1 =
instruction.getOperands().get(0).getRootNode().getChildren().get(0);
final IOperandTreeNode registerOperand2 =
instruction.getOperands().get(1).getRootNode().getChildren().get(0);
final String targetRegister = (registerOperand1.getValue());
final String sourceRegister = (registerOperand2.getValue());
final OperandSize dw = OperandSize.DWORD;
final OperandSize bt = OperandSize.BYTE;
long baseOffset = (instruction.getAddress().toLong() * 0x100) + instructions.size();
instructions.add(ReilHelpers.createStr(baseOffset++, dw, sourceRegister, dw, targetRegister));
if (instruction.getMnemonic().endsWith("S")) {
/* the assumption is made that we receive an S even though its not there */
// N Flag
instructions.add(ReilHelpers.createBsh(baseOffset++, dw, targetRegister, dw,
String.valueOf(-31), bt, "N"));
// Z Flag
instructions.add(ReilHelpers.createBisz(baseOffset++, dw, targetRegister, bt, "Z"));
}
}
/**
* MOV <Rd>, <Rm> ( High Register )
*
* Operation:
*
* Rd = Rm
*/
@Override
public void translate(final ITranslationEnvironment environment, final IInstruction instruction,
final List<ReilInstruction> instructions) throws InternalTranslationException {
TranslationHelpers.checkTranslationArguments(environment, instruction, instructions, "MOV");
translateAll(environment, instruction, "MOV", instructions);
}
}