/* OpenIDA - Outil d'analyse de fichiers binaires
 * processor.c - gestion générique des architectures
 *
 * 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 "processor.h"




#include "instruction-int.h"
#include "processor-int.h"


#include "x86/processor.h"


asm_processor *create_processor(void)
{
    return create_x86_processor();

}



/******************************************************************************
*                                                                             *
*  Paramètres  : proc   = architecture visée par la procédure.                *
*                data   = flux de données à analyser.                         *
*                pos    = position courante dans ce flux. [OUT]               *
*                len    = taille totale des données à analyser.               *
*                offset = adresse virtuelle de l'instruction.                 *
*                                                                             *
*  Description : Décode une instruction dans un flux de données.              *
*                                                                             *
*  Retour      : Instruction mise en place.                                   *
*                                                                             *
*  Remarques   : -                                                            *
*                                                                             *
******************************************************************************/

asm_instr *decode_instruction(const asm_processor *proc, const uint8_t *data, off_t *pos, off_t len, off_t off, uint64_t offset)
{
    asm_instr *result;                      /* Représentation à renvoyer   */

    off_t old_pos;                          /* Sauvegarde de la position   */


    old_pos = *pos;


    result = proc->fetch_instr(proc, data, pos, len, offset);


#define NULL ((void *)0)    /* FIXME */


    if (result == NULL)
    {
        *pos = old_pos;

        //printf("err while decoding opcode 0x%02hhx at 0x%08llx\n", data[*pos], offset);
        result = create_db_instruction(data, pos, len);
    }


    result->vaddress = offset;

    result->offset = off + old_pos;
    result->length = *pos - old_pos;


    return result;

}



/******************************************************************************
*                                                                             *
*  Paramètres  : proc   = architecture visée par la procédure.                *
*                format = format du binaire manipulé.                         *
*                instr  = instruction à traiter.                              *
*                buffer = tampon de sortie mis à disposition. [OUT]           *
*                len    = taille de ce tampon.                                *
*                syntax = type de représentation demandée.                    *
*                                                                             *
*  Description : Traduit une instruction en version humainement lisible.      *
*                                                                             *
*  Retour      : -                                                            *
*                                                                             *
*  Remarques   : -                                                            *
*                                                                             *
******************************************************************************/

void print_hinstruction(const asm_processor *proc, const exe_format *format, const asm_instr *instr, char *buffer, size_t len, AsmSyntax syntax)
{
    proc->print_instr(proc, format, instr, buffer, len, syntax);

}