Supported more x86 opcodes.

git-svn-id: svn://svn.gna.org/svn/chrysalide/trunk@71 abbe820e-26c8-41b2-8c08-b7b2b41f8b0a

8 files changed, 148 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index ab45612..e8fe6ab 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,22 @@
+09-06-08  Cyrille Bagard <nocbos@gmail.com>
+
+	* src/arch/x86/instruction.c:
+	* src/arch/x86/instruction.h:
+	Support more opcodes.
+
+	* src/arch/x86/Makefile.am:
+	Add op_mul.c to libarchx86_la_SOURCES.
+
+	* src/arch/x86/opcodes.h:
+	Support more opcodes.
+
+	* src/arch/x86/op_mul.c:
+	New entry: decode some imul instructions.
+
+	* src/arch/x86/op_test.c:
+	* src/arch/x86/processor.c:
+	Support more opcodes.
+
 09-06-07  Cyrille Bagard <nocbos@gmail.com>
 
 	* src/format/exe_format.c:
diff --git a/src/arch/x86/Makefile.am b/src/arch/x86/Makefile.am
index 3b36490..4b4222a 100644
--- a/src/arch/x86/Makefile.am
+++ b/src/arch/x86/Makefile.am
@@ -17,6 +17,7 @@ libarchx86_la_SOURCES =					\
 	op_lea.c							\
 	op_leave.c							\
 	op_mov.c							\
+	op_mul.c							\
 	op_nop.c							\
 	op_not.c							\
 	op_or.c								\
diff --git a/src/arch/x86/instruction.c b/src/arch/x86/instruction.c
index f68ec59..f9dd828 100644
--- a/src/arch/x86/instruction.c
+++ b/src/arch/x86/instruction.c
@@ -289,8 +289,13 @@ static x86_instruction _instructions[XOP_COUNT] = {
 
     [XOP_HLT]                   = { false, 0xf4, IDX_TO_EXT(-1), "hlt", XPX_NONE },
 
+
+    [XOP_TEST_RM1632_IMM1632]   = { false, 0xf7, IDX_TO_EXT(0), "test", XPX_OPERAND_SIZE_OVERRIDE },
+    [XOP_TEST_RM1632_IMM1632_BIS] = { false, 0xf7, IDX_TO_EXT(1), "test", XPX_OPERAND_SIZE_OVERRIDE },
     [XOP_NOT_RM1632]            = { false, 0xf7, IDX_TO_EXT(2), "not", XPX_OPERAND_SIZE_OVERRIDE },
 
+    [XOP_IMUL_RM1632]           = { false, 0xf7, IDX_TO_EXT(5), "imul", XPX_OPERAND_SIZE_OVERRIDE },
+
 
     [XOP_CLD]                   = { false, 0xfc, IDX_TO_EXT(-1), "cld", XPX_NONE },
 
diff --git a/src/arch/x86/instruction.h b/src/arch/x86/instruction.h
index 6186e96..460dd0e 100644
--- a/src/arch/x86/instruction.h
+++ b/src/arch/x86/instruction.h
@@ -234,8 +234,12 @@ typedef enum _X86Opcodes
 
     XOP_HLT,                                /* hlt (0xf4)                  */
 
+    XOP_TEST_RM1632_IMM1632,                /* test ([0x66] 0xf7 0)        */
+    XOP_TEST_RM1632_IMM1632_BIS,            /* test ([0x66] 0xf7 1)        */
     XOP_NOT_RM1632,                         /* not ([0x66] 0xf7 2)         */
 
+    XOP_IMUL_RM1632,                        /* imul ([0x66] 0xf7 5)        */
+
     XOP_CLD,                                /* cld (0xfc)                  */
 
     XOP_CALL_RM1632,                        /* call ([0x66] 0xff 2)        */
diff --git a/src/arch/x86/op_mul.c b/src/arch/x86/op_mul.c
new file mode 100644
index 0000000..e80bad2
--- /dev/null
+++ b/src/arch/x86/op_mul.c
@@ -0,0 +1,66 @@
+
+/* OpenIDA - Outil d'analyse de fichiers binaires
+ * op_mul.c - décodage des multiplications
+ *
+ * Copyright (C) 2009 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.               *
+*                offset = adresse virtuelle de l'instruction.                 *
+*                proc   = architecture ciblée par le désassemblage.           *
+*                                                                             *
+*  Description : Décode une instruction de type 'imul' (16 ou 32 bits).       *
+*                                                                             *
+*  Retour      : Instruction mise en place ou NULL.                           *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+GArchInstruction *x86_read_instr_imul_rm1632(const bin_t *data, off_t *pos, off_t len, vmpa_t addr, X86Prefix prefix, const GX86Processor *proc)
+{
+    GArchInstruction *result;               /* Instruction à retourner     */
+    AsmOperandSize oprsize;                 /* Taille des opérandes        */
+
+    result = g_x86_instruction_new(XOP_IMUL_RM1632);
+
+    oprsize = g_x86_processor_get_operand_size(proc, prefix);
+
+    if (!x86_read_one_operand(result, data, pos, len, X86_OTP_RM1632, oprsize))
+    {
+        /* TODO free(result);*/
+        return NULL;
+    }
+
+    return result;
+
+}
diff --git a/src/arch/x86/op_test.c b/src/arch/x86/op_test.c
index 39f5777..3ee2fe2 100644
--- a/src/arch/x86/op_test.c
+++ b/src/arch/x86/op_test.c
@@ -148,6 +148,42 @@ GArchInstruction *x86_read_instr_test_rm8_r8(const bin_t *data, off_t *pos, off_
 *                                                                             *
 ******************************************************************************/
 
+GArchInstruction *x86_read_instr_test_rm1632_imm1632(const bin_t *data, off_t *pos, off_t len, vmpa_t addr, X86Prefix prefix, const GX86Processor *proc)
+{
+    GArchInstruction *result;               /* Instruction à retourner     */
+    AsmOperandSize oprsize;                 /* Taille des opérandes        */
+
+    result = g_x86_instruction_new(XOP_TEST_RM1632_IMM1632);
+
+    oprsize = g_x86_processor_get_operand_size(proc, prefix);
+
+    if (!x86_read_two_operands(result, data, pos, len, X86_OTP_RM1632, X86_OTP_IMM1632, oprsize))
+    {
+        /* TODO free(result);*/
+        return NULL;
+    }
+
+    return result;
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : 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.                 *
+*                proc   = architecture ciblée par le désassemblage.           *
+*                                                                             *
+*  Description : Décode une instruction de type 'test' (16 ou 32 bits).       *
+*                                                                             *
+*  Retour      : Instruction mise en place ou NULL.                           *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
 GArchInstruction *x86_read_instr_test_rm1632_r1632(const bin_t *data, off_t *pos, off_t len, vmpa_t addr, X86Prefix prefix, const GX86Processor *proc)
 {
     GArchInstruction *result;               /* Instruction à retourner     */
diff --git a/src/arch/x86/opcodes.h b/src/arch/x86/opcodes.h
index 67858b0..e2ec5a6 100644
--- a/src/arch/x86/opcodes.h
+++ b/src/arch/x86/opcodes.h
@@ -108,6 +108,9 @@ GArchInstruction *x86_read_instr_dec_r1632(const bin_t *, off_t *, off_t, vmpa_t
 /* Décode une instruction de type 'hlt'. */
 GArchInstruction *x86_read_instr_hlt(const bin_t *, off_t *, off_t, vmpa_t, X86Prefix, const GX86Processor *);
 
+/* Décode une instruction de type 'imul' (16 ou 32 bits). */
+GArchInstruction *x86_read_instr_imul_rm1632(const bin_t *, off_t *, off_t, vmpa_t, X86Prefix, const GX86Processor *);
+
 /* Décode une instruction de type 'inc' (16 ou 32 bits). */
 GArchInstruction *x86_read_instr_inc_r1632(const bin_t *, off_t *, off_t, vmpa_t, X86Prefix, const GX86Processor *);
 
@@ -319,6 +322,9 @@ GArchInstruction *x86_read_instr_test_e_ax_imm1632(const bin_t *, off_t *, off_t
 GArchInstruction *x86_read_instr_test_rm8_r8(const bin_t *, off_t *, off_t, vmpa_t, X86Prefix, const GX86Processor *);
 
 /* Décode une instruction de type 'test' (16 ou 32 bits). */
+GArchInstruction *x86_read_instr_test_rm1632_imm1632(const bin_t *, off_t *, off_t, vmpa_t, X86Prefix, const GX86Processor *);
+
+/* Décode une instruction de type 'test' (16 ou 32 bits). */
 GArchInstruction *x86_read_instr_test_rm1632_r1632(const bin_t *, off_t *, off_t, vmpa_t, X86Prefix, const GX86Processor *);
 
 /* Décode une instruction de type 'xchg' (16 ou 32 bits). */
diff --git a/src/arch/x86/processor.c b/src/arch/x86/processor.c
index aae4fe3..8af84b2 100644
--- a/src/arch/x86/processor.c
+++ b/src/arch/x86/processor.c
@@ -695,11 +695,22 @@ static GArchInstruction *g_x86_processor_decode_instruction(const GX86Processor
             break;
 
 
+        case XOP_TEST_RM1632_IMM1632:
+        case XOP_TEST_RM1632_IMM1632_BIS:
+            result = x86_read_instr_test_rm1632_imm1632(data, pos, len, addr, prefix, proc);
+            break;
+
         case XOP_NOT_RM1632:
             result = x86_read_instr_not_rm1632(data, pos, len, addr, prefix, proc);
             break;
 
 
+        case XOP_IMUL_RM1632:
+            result = x86_read_instr_imul_rm1632(data, pos, len, addr, prefix, proc);
+            break;
+
+
+
         case XOP_CLD:
             result = x86_read_instr_cld(data, pos, len, addr, prefix, proc);
             break;