/* c-isr library stuff of Andes NDS32 cpu for GNU compiler Copyright (C) 2012-2017 Free Software Foundation, Inc. Contributed by Andes Technology Corporation. This file is part of GCC. GCC 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, or (at your option) any later version. GCC 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. Under Section 7 of GPL version 3, you are granted additional permissions described in the GCC Runtime Library Exception, version 3.1, as published by the Free Software Foundation. You should have received a copy of the GNU General Public License and a copy of the GCC Runtime Library Exception along with this program; see the files COPYING3 and COPYING.RUNTIME respectively. If not, see <http://www.gnu.org/licenses/>. */ .macro ADJ_INTR_LVL #if defined(NDS32_NESTED) /* Nested handler. */ mfsr $r3, $PSW addi $r3, $r3, #-0x1 mtsr $r3, $PSW #elif defined(NDS32_NESTED_READY) /* Nested ready handler. */ /* Save ipc and ipsw and lower INT level. */ mfsr $r3, $PSW addi $r3, $r3, #-0x2 mtsr $r3, $PSW #else /* Not nested handler. */ #endif .endm |