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/* Chrysalide - Outil d'analyse de fichiers binaires
* ##FILE## - traduction d'instructions ARMv7
*
* Copyright (C) 2015 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 ADD (immediate, Thumb)
@desc This instruction adds an immediate value to a register value, and writes the result to the destination register. It can optionally update the condition flags based on the result.
@encoding (t1) {
@half 0 0 0 1 1 1 0 imm3(3) Rn(3) Rd(3)
@syntax "adds" <reg_D> <reg_N> <imm32>
@conv {
reg_D = Register(Rd)
reg_N = Register(Rn)
imm32 = ZeroExtend(imm3, 32)
}
}
@encoding (t2) {
@half 0 0 1 1 0 Rdn(3) imm8(8)
@syntax "adds" <reg_DN> <imm32>
@conv {
reg_DN = Register(Rdn)
imm32 = ZeroExtend(imm8, 32)
}
}
@encoding (T3) {
@word 1 1 1 1 0 i(1) 0 1 0 0 0 S(1) Rn(4) 0 imm3(3) Rd(4) imm8(8)
@syntax <reg_D> <reg_N> <imm32>
@conv {
reg_D = Register(Rd)
reg_N = Register(Rn)
setflags = (S == '1')
imm32 = ThumbExpandImm(i:imm3:imm8)
}
@rules {
if (setflags); chk_call ExtendKeyword("s")
chk_call ExtendKeyword(".w")
}
}
@encoding (T4) {
@word 1 1 1 1 0 i(1) 1 0 0 0 0 0 Rn(4) 0 imm3(3) Rd(4) imm8(8)
@syntax "addw" <reg_D> <reg_N> <imm32>
@conv {
reg_D = Register(Rd)
reg_N = Register(Rn)
imm32 = ZeroExtend(i:imm3:imm8, 32)
}
}
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