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Diffstat (limited to 'plugins/arm/v7/opdefs/A88228_svc.d')
-rw-r--r-- | plugins/arm/v7/opdefs/A88228_svc.d | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/plugins/arm/v7/opdefs/A88228_svc.d b/plugins/arm/v7/opdefs/A88228_svc.d new file mode 100644 index 0000000..c74f818 --- /dev/null +++ b/plugins/arm/v7/opdefs/A88228_svc.d @@ -0,0 +1,79 @@ + +/* 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 SVC (previously SWI) + +@id 221 + +@desc { + + Supervisor Call, previously called Software Interrupt, causes a Supervisor Call exception. For more information, see Supervisor Call (SVC) exception on page B1-1209. Software can use this instruction as a call to an operating system to provide a service. In the following cases, the Supervisor Call exception generated by the SVC instruction is taken to Hyp mode: • If the SVC is executed in Hyp mode. • If HCR.TGE is set to 1, and the SVC is executed in Non-secure User mode. For more information, see Supervisor Call exception, when HCR.TGE is set to 1 on page B1-1191 In these cases, the HSR identifies that the exception entry was caused by a Supervisor Call exception, EC value 0x11, see Use of the HSR on page B3-1424. The immediate field in the HSR: • if the SVC is unconditional: — for the Thumb instruction, is the zero-extended value of the imm8 field — for the ARM instruction, is the least-significant 16 bits the imm24 field • if the SVC is conditional, is UNKNOWN. + +} + +@encoding (t1) { + + @half 1 1 0 1 1 1 1 1 imm8(8) + + @syntax { + + @subid 697 + + @conv { + + imm32 = ZeroExtend(imm8, 32) + + } + + @asm svc imm32 + + } + +} + +@encoding (A1) { + + @word cond(4) 1 1 1 1 imm24(24) + + @syntax { + + @subid 698 + + @conv { + + imm32 = ZeroExtend(imm24, 32) + + } + + @asm svc imm32 + + @rules { + + check g_arm_instruction_set_cond(cond) + + } + + } + +} + |