49 lines
1.6 KiB
C
49 lines
1.6 KiB
C
/* Copyright (C)
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* 2011 - Michael.Kang blackfin.kang@gmail.com
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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*/
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/**
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* @file arm_dyncom_thumb.h
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* @brief The thumb dyncom
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* @author Michael.Kang blackfin.kang@gmail.com
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* @version 78.77
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* @date 2011-11-07
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*/
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#pragma once
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#include "common/common_types.h"
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enum class ThumbDecodeStatus {
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UNDEFINED, // Undefined Thumb instruction
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DECODED, // Instruction decoded to ARM equivalent
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BRANCH, // Thumb branch (already processed)
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UNINITIALIZED,
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};
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// Translates a Thumb mode instruction into its ARM equivalent.
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ThumbDecodeStatus TranslateThumbInstruction(u32 addr, u32 instr, u32* ainstr, u32* inst_size);
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inline u32 GetThumbInstruction(u32 instr, u32 address) {
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// Normally you would need to handle instruction endianness,
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// however, it is fixed to little-endian on the MPCore, so
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// there's no need to check for this beforehand.
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if ((address & 0x3) != 0)
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return instr >> 16;
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return instr & 0xFFFF;
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}
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