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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 STRB (register)
@encoding(t1) {
@half 0 1 0 1 0 1 0 Rm(3) Rn(3) Rt(3)
@syntax <Rgt> <access>
@conv {
Rgt = Register(Rt)
Rgn = Register(Rn)
Rgm = Register(Rm)
access = _MakeMemoryAccess(Rgn, Rgm, 0)
}
@rules {
}
}
@encoding(T2) {
@word 1 1 1 1 1 0 0 0 0 0 0 0 Rn(4) Rt(4) 0 0 0 0 0 0 imm2(2) Rm(4)
@syntax "strb.W" <Rgt>, <access>
@conv {
Rgt = Register(Rt)
Rgn = Register(Rn)
Rgm = Register(Rm)
shift = DecodeImmShift(0, imm2)
access = MakeShiftedMemoryAccess(Rgn, Rgm, shift, 0)
}
@rules {
//if Rn == '1111' then UNDEFINED;
//if t IN {13,15} || m IN {13,15} then UNPREDICTABLE;
if (Rt == '1111'); chk_call DefineAsReturn(1)
}
}
@encoding(A11) {
@word cond(4) 0 1 1 1 U(1) 1 W(1) 0 Rn(4) Rt(4) imm5(5) type(2) 0 Rm(4)
@syntax <Rgt> <access>
@conv {
Rgt = Register(Rt)
Rgn = Register(Rn)
Rgm = Register(Rm)
shift = DecodeImmShift(type, imm5)
access = MakeShiftedMemoryAccess(Rgn, Rgm, shift, W)
}
@rules {
//if P == '0' && W == '1' then SEE STRT;
//if Rn == '1101' && P == '1' && U == '0' && W == '1' && imm12 == '000000000100' then SEE PUSH;
//if wback && (n == 15 || n == t) then UNPREDICTABLE;
if (Rt == '1111'); chk_call DefineAsReturn(1)
}
}
@encoding(A12) {
@word cond(4) 0 1 1 0 U(1) 1 W(1) 0 Rn(4) Rt(4) imm5(5) type(2) 0 Rm(4)
@syntax <Rgt> <base> <offset> <?shift>
@conv {
Rgt = Register(Rt)
Rgn = Register(Rn)
Rgm = Register(Rm)
base = MakeMemoryNotIndexed(Rgn, 1)
offset = MakeAccessOffset(U, Rgm)
shift = DecodeImmShift(type, imm5)
}
@rules {
//if P == '0' && W == '1' then SEE STRT;
//if Rn == '1101' && P == '1' && U == '0' && W == '1' && imm12 == '000000000100' then SEE PUSH;
//if wback && (n == 15 || n == t) then UNPREDICTABLE;
if (Rt == '1111'); chk_call DefineAsReturn(1)
}
}
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