// Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).
// All rights reserved.
// This component and the accompanying materials are made available
// under the terms of the License "Eclipse Public License v1.0"
// which accompanies this distribution, and is available
// at the URL "http://www.eclipse.org/legal/epl-v10.html".
//
// Initial Contributors:
// Nokia Corporation - initial contribution.
//
// Contributors:
//
// Description:
//
#ifndef D_RMD_STEPPING_H
#define D_RMD_STEPPING_H
// fwd declaration of DRM_DebugChannel
class DRM_DebugChannel;
// extracted from rm_debug_kerneldriver.h
// Register definitions
#define SP_REGISTER 13
#define LINK_REGISTER 14
#define PC_REGISTER 15
#define STATUS_REGISTER 16
class DRMDStepping : public DBase
{
public:
// ctor
DRMDStepping(DRM_DebugChannel* aChannel);
// dtor
~DRMDStepping();
// extracted from rm_debug_kerneldriver.cpp
TBool IsExecuted(TUint8 aCondition, TUint32 aStatusRegister);
TBool IsPreviousInstructionMovePCToLR(DThread *aThread);
void DecodeDataProcessingInstruction(TUint8 aOpcode, TUint32 aOp1, TUint32 aOp2, TUint32 aStatusRegister, TUint32 &aBreakAddress);
TUint32 PCAfterInstructionExecutes(DThread *aThread, TUint32 aCurrentPC, TUint32 aStatusRegister, TInt aInstSize, TUint32 &aNewRangeEnd, TBool &aChangingModes);
TUint32 ShiftedRegValue(DThread *aThread, TUint32 aInstruction, TUint32 aCurrentPC, TUint32 aStatusRegister);
TInt ModifyBreaksForStep(DThread *aThread, TUint32 aRangeStart, TUint32 aRangeEnd,TBool aResumeOnceOutOfRange, TBool aCheckForStubs, const TUint32 aNumSteps);
private:
// Needed to access private data until re-structuring work is complete.
friend class DRM_DebugChannel;
DRM_DebugChannel* iChannel; // temporary reference back to DRM_DebugChannel to help with refactoring
// Set of inline functions for decoding instructions. Formerly these were all macros
// ARM instruction bitmasks
inline TUint32 arm_opcode(const TUint32 aInst);
// Generic instruction defines
inline TUint32 arm_rm(const TUint32 aInst);
inline TUint32 arm_rs(const TUint32 aInst);
inline TUint32 arm_rd(const TUint32 aInst);
inline TUint32 arm_rn(const TUint32 aInst);
inline TUint32 arm_load(const TUint32 aInst);
// Data processing instruction defines
inline TUint32 arm_data_shift(const TUint32 aInst);
inline TUint32 arm_data_c(const TUint32 aInst);
inline TUint32 arm_data_imm(const TUint32 aInst);
inline TUint32 arm_data_rot(const TUint32 aInst);
// Single date transfer instruction defines
inline TUint32 arm_single_imm(const TUint32 aInst);
inline TUint32 arm_single_byte(const TUint32 aInst);
inline TUint32 arm_single_u(const TUint32 aInst);
inline TUint32 arm_single_pre(const TUint32 aInst);
// Block data transfer instruction defines
inline TUint32 arm_block_reglist(const TUint32 aInst);
inline TUint32 arm_block_u(const TUint32 aInst);
inline TUint32 arm_block_pre(const TUint32 aInst);
// Branch instruction defines
inline TUint32 arm_b_addr(const TUint32 aInst);
inline TUint32 arm_instr_b_dest(const TUint32 aInst, TUint32& aAddr);
inline TUint32 thumb_b_addr(const TUint32 aInst);
inline TUint32 thumb_instr_b_dest(const TUint32 aInst, TUint32& aAddr);
inline TUint32 arm_carry_bit(void);
// Thumb instruction bitmasks
inline TUint16 thumb_opcode(const TUint16 aInst);
inline TUint16 thumb_inst_7_15(const TUint16 aInst);
inline TUint16 thumb_inst_8_15(const TUint16 aInst);
// Thumb2 decode support functions
inline TUint16 t2opcode16(const TUint16 aInst);
inline TUint16 t2opcode16special(const TUint16 aInst);
// Helper functions
TInt CurrentPC(DThread* aThread, TUint32& aPC);
TInt CurrentCPSR(DThread* aThread, TUint32& aCPSR);
TInt CurrentInstruction(DThread* aThread, TUint32& aInstruction);
TInt CurrentArchMode(const TUint32 cpsr, Debug::TArchitectureMode& mode);
TInt RegisterValue(DThread *aThread, const TUint32 aKernelRegisterId, TUint32 &aValue);
TInt ReadMem32(DThread* aThread, const TUint32 aAddress, TUint32& aValue);
TInt ReadMem16(DThread* aThread, const TUint32 aAddress, TUint16& aValue);
TInt ReadMem8(DThread* aThread, const TUint32 aAddress, TUint8& aValue);
inline TUint32 BitCount(const TUint32 aVal);
inline TUint32 IsBitSet(const TUint32 aBitset, const TUint8 aBitNum);
};
#include "d_rmd_stepping.inl"
#endif // D_RMD_STEPPPING_H
// End of file - d-rmd-stepping.h