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diff --git a/src/arch/arm/v7/opdefs/str_A88203.d b/src/arch/arm/v7/opdefs/str_A88203.d
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+
+/* Chrysalide - Outil d'analyse de fichiers binaires
+ * ##FILE## - traduction d'instructions ARMv7
+ *
+ * Copyright (C) 2014 Cyrille Bagard
+ *
+ *  This file is part of Chrysalide.
+ *
+ *  Chrysalide 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.
+ *
+ *  Chrysalide 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/>.
+ */
+
+
+@title STR (immediate, Thumb)
+
+@encoding(t1) {
+
+    @half 0 1 1 0 0 imm5(5) Rn(3) Rt(3)
+
+    @syntax <Rgt> <access>
+
+    @conv {
+
+        Rgt = Register(Rt)
+        Rgn = Register(Rn)
+        imm32 = ZeroExtend(imm5:'00', 7, 32);
+        access = MakeMemoryAccess(Rgn, imm32, 1, 0)
+
+    }
+
+}
+
+@encoding(t2) {
+
+    @half 1 0 0 1 0 Rt(3) imm8(8)
+
+    @syntax <Rgt> <access>
+
+    @conv {
+
+        Rgt = Register(Rt)
+        Sp = Register(13)
+        imm32 = ZeroExtend(imm8:'00', 10, 32);
+        access = MakeMemoryAccess(Sp, imm32, 1, 0)
+
+    }
+
+}
+
+@encoding(T3) {
+
+    @word 1 1 1 1 1 0 0 0 1 1 0 0 Rn(4) Rt(4) imm12(12)
+
+    @syntax "str.W" <Rgt> <access>
+
+    @conv {
+
+        Rgt = Register(Rt)
+        Rgn = Register(Rn)
+        imm32 = ZeroExtend(imm12, 12, 32);
+        access = MakeMemoryAccess(Rgn, imm32, 1, 0)
+
+    }
+
+    @rules {
+
+        //if Rn == '1111' then UNDEFINED;
+        //if t == 15 then UNPREDICTABLE;
+
+    }
+
+}
+
+@encoding(T41) {
+
+    @word 1 1 1 1 1 0 0 0 0 1 0 0 Rn(4) Rt(4) 1 1 U(1) W(1) imm8(8)
+
+    @syntax <Rgt> <access>
+
+    @conv {
+
+        Rgt = Register(Rt)
+        Rgn = Register(Rn)
+        imm32 = ZeroExtend(imm8, 8, 32);
+        access = MakeMemoryAccess(Rgn, imm32, U, W)
+
+    }
+
+    @rules {
+
+        //if P == '1' && U == '1' && W == '0' then SEE STRT;
+        //if Rn == '1101' && P == '1' && U == '0' && W == '1' && imm8 == '00000100' then SEE PUSH;
+        //if Rn == '1111' || (P == '0' && W == '0') then UNDEFINED;
+        //if t == 15 || (wback && n == t) then UNPREDICTABLE;
+
+    }
+
+}
+
+@encoding(T42) {
+
+    @word 1 1 1 1 1 0 0 0 0 1 0 0 Rn(4) Rt(4) 1 0 U(1) W(1) imm8(8)
+
+    @syntax <Rgt> <base> <offset>
+
+    @conv {
+
+        Rgt = Register(Rt)
+        Rgn = Register(Rn)
+        imm32 = ZeroExtend(imm8, 8, 32);
+        base = MakeMemoryNotIndexed(Rgn, W)
+        offset = MakeAccessOffset(U, imm32)
+
+    }
+
+    @rules {
+
+        //if P == '1' && U == '1' && W == '0' then SEE STRT;
+        //if Rn == '1101' && P == '1' && U == '0' && W == '1' && imm8 == '00000100' then SEE PUSH;
+        //if Rn == '1111' || (P == '0' && W == '0') then UNDEFINED;
+        //if t == 15 || (wback && n == t) then UNPREDICTABLE;
+
+    }
+
+}