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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 Foobar. If not, see <http://www.gnu.org/licenses/>.
*/
@title UXTH
@id 275
@desc {
Unsigned Extend Halfword extracts a 16-bit value from a register, zero-extends it to 32 bits, and writes the result to the destination register. The instruction can specify a rotation by 0, 8, 16, or 24 bits before extracting the 16-bit value.
}
@encoding (t1) {
@half 1 0 1 1 0 0 1 0 1 0 Rm(3) Rd(3)
@syntax {
@conv {
reg_D = Register(Rd)
reg_M = Register(Rm)
rotation = Rotation(0)
}
@asm uxth ?reg_D reg_M ?rotation
}
}
@encoding (T2) {
@word 1 1 1 1 1 0 1 0 0 0 0 1 1 1 1 1 1 1 1 1 Rd(4) 1 0 rotate(2) Rm(4)
@syntax {
@conv {
reg_D = Register(Rd)
reg_M = Register(Rm)
rotation = Rotation(rotate:'000')
}
@asm uxth.w ?reg_D reg_M ?rotation
}
}
@encoding (A1) {
@word cond(4) 0 1 1 0 1 1 1 1 1 1 1 1 Rd(4) rotate(2) 0 0 0 1 1 1 Rm(4)
@syntax {
@conv {
reg_D = Register(Rd)
reg_M = Register(Rm)
rotation = Rotation(rotate:'000')
}
@asm uxth ?reg_D reg_M ?rotation
@rules {
check g_arm_instruction_set_cond(cond)
}
}
}
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