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/* c-isr library stuff of Andes NDS32 cpu for GNU compiler
Copyright (C) 2012-2019 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
/* By substracting 1 from $PSW, we can lower PSW.INTL
and enable GIE simultaneously. */
addi $r3, $r3, #-0x1
#if __NDS32_EXT_ZOL__ || __NDS32_EXT_DSP__
ori $r3, $r3, 0x2000 /* Set PSW.AEN(b'13) */
#endif
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
#if __NDS32_EXT_ZOL__ || __NDS32_EXT_DSP__
ori $r3, $r3, 0x2000 /* Set PSW.AEN(b'13) */
#endif
mtsr $r3, $PSW
#else /* Not nested handler. */
#if __NDS32_EXT_ZOL__ || __NDS32_EXT_DSP__
mfsr $r3, $PSW
ori $r3, $r3, 0x2000 /* Set PSW.AEN(b'13) */
mtsr $r3, $PSW
#endif
#endif
.endm
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