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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 HVC
@id 355
@desc {
Hypervisor Call causes a Hypervisor Call exception. For more information see Hypervisor Call (HVC) exception on page B1-1211. Non-secure software executing at PL1 can use this instruction to call the hypervisor to request a service. The HVC instruction is: • UNDEFINED in Secure state, and in User mode in Non-secure state • when SCR.HCE is set to 0, UNDEFINED in Non-secure PL1 modes and UNPREDICTABLE in Hyp mode • UNPREDICTABLE in Debug state. On executing an HVC instruction, the HSR reports the exception as a Hypervisor Call exception, using the EC value 0x12, and captures the value of the immediate argument, see Use of the HSR on page B3-1424.
}
@encoding (T1) {
@word 1 1 1 1 0 1 1 1 1 1 1 0 imm4(4) 1 0 0 0 imm12(12)
@syntax {
@subid 1998
@conv {
imm16 = UInt(imm4:imm12)
}
@asm hvc imm16
}
}
@encoding (A1) {
@word cond(4) 0 0 0 1 0 1 0 0 imm12(12) 0 1 1 1 imm4(4)
@syntax {
@subid 1999
@conv {
imm16 = UInt(imm12:imm4)
}
@asm hvc imm16
}
}
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