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/* Chrysalide - Outil d'analyse de fichiers binaires
* ##FILE## - traduction d'instructions ARMv7
*
* Copyright (C) 2017 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 Chrysalide. If not, see <http://www.gnu.org/licenses/>.
*/
@title USAT
@id 265
@desc {
Unsigned Saturate saturates an optionally-shifted signed value to a selected unsigned range. The Q flag is set if the operation saturates.
}
@encoding (T1) {
@word 1 1 1 1 0 0 1 1 1 0 sh(1) 0 Rn(4) 0 imm3(3) Rd(4) imm2(2) 0 sat_imm(5)
@syntax {
@subid 683
@conv {
reg_D = Register(Rd)
saturate_to = UInt(sat_imm)
reg_N = Register(Rn)
shift = DecodeImmShift(sh:'0', imm3:imm2)
}
@asm usat reg_D saturate_to reg_N ?shift
}
}
@encoding (A1) {
@word cond(4) 0 1 1 0 1 1 1 sat_imm(5) Rd(4) imm5(5) sh(1) 0 1 Rn(4)
@syntax {
@subid 684
@conv {
reg_D = Register(Rd)
saturate_to = UInt(sat_imm)
reg_N = Register(Rn)
shift = DecodeImmShift(sh:'0', imm5)
}
@asm usat reg_D saturate_to reg_N ?shift
@rules {
check g_arm_instruction_set_cond(cond)
}
}
}
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