/* OpenIDA - Outil d'analyse de fichiers binaires
 * op_ror.c - décodage des rotations à droite sans retenue
 *
 * Copyright (C) 2008 Cyrille Bagard
 *
 *  This file is part of OpenIDA.
 *
 *  OpenIDA is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  OpenIDA 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with Foobar.  If not, see <http://www.gnu.org/licenses/>.
 */


#include <malloc.h>


#include "../instruction-int.h"
#include "opcodes.h"
#include "operand.h"



/******************************************************************************
*                                                                             *
*  Paramètres  : data = flux de données à analyser.                           *
*                pos  = position courante dans ce flux. [OUT]                 *
*                len  = taille totale des données à analyser.                 *
*                addr = adresse virtuelle de l'instruction.                   *
*                proc = architecture ciblée par le désassemblage.             *
*                                                                             *
*  Description : Décode une instruction de type 'ror' (16 ou 32 bits).        *
*                                                                             *
*  Retour      : Instruction mise en place ou NULL.                           *
*                                                                             *
*  Remarques   : -                                                            *
*                                                                             *
******************************************************************************/

GArchInstruction *x86_read_instr_ror_rm1632_imm8(const bin_t *data, off_t *pos, off_t len, vmpa_t addr, X86Prefix prefix, const GX86Processor *proc)
{
    GArchInstruction *result;               /* Instruction à retourner     */
    MemoryDataSize oprsize;                 /* Taille des opérandes        */

    result = g_x86_instruction_new(XOP_ROR_RM1632_IMM8);

    oprsize = g_x86_processor_get_operand_size(proc, prefix);

    if (!x86_read_two_operands(result, data, pos, len, X86_OTP_RM1632, X86_OTP_IMM8, oprsize))
    {
        /* TODO free(result);*/
        return NULL;
    }

    return result;

}