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/* OpenIDA - Outil d'analyse de fichiers binaires
* instruction.c - gestion générique des instructions
*
* 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 "instruction.h"
#include <malloc.h>
#include "instruction-int.h"
/******************************************************************************
* *
* Paramètres : data = flux de données à analyser. *
* pos = position courante dans ce flux. [OUT] *
* len = taille totale des données à analyser. *
* *
* Description : Crée une instruction de type 'db' à partir de données. *
* *
* Retour : Instruction mise en place. *
* *
* Remarques : - *
* *
******************************************************************************/
asm_instr *create_db_instruction(const uint8_t *data, off_t *pos, off_t len)
{
asm_instr *result; /* Représentation à renvoyer */
result = (asm_instr *)calloc(1, sizeof(asm_instr));
result->opcode = DB_OPCODE;
result->type = AIT_DB;
/* TODO: check result */
result->operands = (asm_operand **)calloc(1, sizeof(asm_operand *));
result->operands[0] = (asm_operand *)calloc(1, sizeof(asm_operand));
fill_db_operand(result->operands[0], data[(*pos)++]);
result->operands_count = 1;
return result;
}
/******************************************************************************
* *
* Paramètres : instr = instruction quelconque à traiter. *
* offset = position physique dans le code binaire / NULL. [OUT]*
* length = taille de l'instruction ou NULL. [OUT] *
* *
* Description : Indique la position et/ou la taille d'une instruction. *
* *
* Retour : - *
* *
* Remarques : - *
* *
******************************************************************************/
void get_asm_instr_offset_and_length(const asm_instr *instr, off_t *offset, off_t *length)
{
if (offset != NULL) *offset = instr->offset;
if (length != NULL) *length = instr->length;
}
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