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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 LDR (register, Thumb)
@encoding(t1) {
@half 0 1 0 1 1 0 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 {
//if CurrentInstrSet() == InstrSet_ThumbEE then SEE "Modified operation in ThumbEE";
}
}
@encoding(T2) {
@word 1 1 1 1 1 0 0 0 0 1 0 1 Rn(4) Rt(4) 0 0 0 0 0 0 imm2(2) Rm(4)
@syntax "ldr.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 SEE LDR (literal);
//if m IN {13,15} then UNPREDICTABLE;
//if t == 15 && InITBlock() && !LastInITBlock() then UNPREDICTABLE;
if (Rt == '1111'); call DefineAsReturn(1)
}
}
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