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diff --git a/src/analysis/block.h b/src/analysis/block.h
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+
+/* OpenIDA - Outil d'analyse de fichiers binaires
+ * block.h - prototypes pour l'encadrement des instructions par blocs
+ *
+ * Copyright (C) 2012 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/>.
+ */
+
+
+#ifndef _ANALYSIS_BLOCK_H
+#define _ANALYSIS_BLOCK_H
+
+
+#include <glib.h>
+#include <glib-object.h>
+
+
+#include "../arch/register.h"
+
+
+
+
+
+
+
+
+/* Note sur le premier accès */
+typedef enum _RegAccessType
+{
+    RAT_NONE    = (0 << 0),                 /* Registre non rencontré      */
+    RAT_READ    = (1 << 0),                 /* Lecture                     */
+    RAT_WRITE   = (1 << 1)                  /* Ecriture                    */
+
+} RegAccessType;
+
+/* Description minimale des accès à un registre */
+typedef struct _reg_access
+{
+    GArchRegister *reg;                     /* Register concerné           */
+
+    RegAccessType first_access;             /* Type du premier accès       */
+    vmpa_t last_write;                      /* Dernière écriture           */
+
+} reg_access;
+
+
+/* Compare un accès registre avec un autre. */
+int compare_reg_accesses(const reg_access *, const reg_access *);
+
+
+
+
+#define G_TYPE_INSTR_BLOCK               g_instr_block_get_type()
+#define G_INSTR_BLOCK(obj)               (G_TYPE_CHECK_INSTANCE_CAST((obj), g_instr_block_get_type(), GInstrBlock))
+#define G_IS_INSTR_BLOCK(obj)            (G_TYPE_CHECK_INSTANCE_TYPE((obj), g_instr_block_get_type()))
+#define G_INSTR_BLOCK_CLASS(klass)       (G_TYPE_CHECK_CLASS_CAST((klass), G_TYPE_INSTR_BLOCK, GInstrBlockClass))
+#define G_IS_INSTR_BLOCK_CLASS(klass)    (G_TYPE_CHECK_CLASS_TYPE((klass), G_TYPE_INSTR_BLOCK))
+#define G_INSTR_BLOCK_GET_CLASS(obj)     (G_TYPE_INSTANCE_GET_CLASS((obj), G_TYPE_INSTR_BLOCK, GInstrBlockClass))
+
+
+/* Description d'un bloc d'instructions (instance) */
+typedef struct _GInstrBlock GInstrBlock;
+
+/* Description d'un bloc d'instructions (classe) */
+typedef struct _GInstrBlockClass GInstrBlockClass;
+
+
+/* Indique le type défini pour un bloc d'instructions. */
+GType g_instr_block_get_type(void);
+
+
+
+
+
+
+
+
+#endif  /* _ANALYSIS_BLOCK_H */