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/* c-isr library stuff of Andes NDS32 cpu for GNU compiler
Copyright (C) 2012-2014 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 SAVE_ALL_4B
#ifdef __NDS32_REDUCED_REGS__
smw.adm $r15, [$sp], $r15, #0xf
smw.adm $r0, [$sp], $r10, #0x0
#else /* not __NDS32_REDUCED_REGS__ */
smw.adm $r0, [$sp], $r27, #0xf
#endif /* not __NDS32_REDUCED_REGS__ */
#ifdef NDS32_EXT_IFC
mfusr $r1, $IFC_LP
smw.adm $r1, [$sp], $r2, #0x0 /* Save extra $r2 to keep
stack 8-byte alignment. */
#endif
SAVE_MAC_REGS
SAVE_FPU_REGS
mfsr $r1, $IPC /* Get IPC. */
mfsr $r2, $IPSW /* Get IPSW. */
smw.adm $r1, [$sp], $r2, #0x0 /* Push IPC, IPSW. */
move $r1, $sp /* $r1 is ptr to NDS32_CONTEXT. */
mfsr $r0, $ITYPE /* Get VID to $r0. */
srli $r0, $r0, #5
#ifdef __NDS32_ISA_V2__
andi $r0, $r0, #127
#else
fexti33 $r0, #6
#endif
.endm
.macro SAVE_ALL
/* SAVE_REG_TBL code has been moved to
vector table generated by compiler. */
#ifdef NDS32_EXT_IFC
mfusr $r1, $IFC_LP
smw.adm $r1, [$sp], $r2, #0x0 /* Save extra $r2 to keep
stack 8-byte alignment. */
#endif
SAVE_MAC_REGS
SAVE_FPU_REGS
mfsr $r1, $IPC /* Get IPC. */
mfsr $r2, $IPSW /* Get IPSW. */
smw.adm $r1, [$sp], $r2, #0x0 /* Push IPC, IPSW. */
move $r1, $sp /* $r1 is ptr to NDS32_CONTEXT. */
.endm
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