| /* c-isr library stuff of Andes NDS32 cpu for GNU compiler |
| Copyright (C) 2012-2023 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_USR_REGS |
| /* Store User Special Registers according to supported ISA extension |
| !!! WATCH OUT !!! Take care of 8-byte alignment issue. */ |
| #if __NDS32_EXT_IFC__ && (__NDS32_EXT_ZOL__ || __NDS32_EXT_DSP__) |
| mfusr $r1, $IFC_LP |
| mfusr $r2, $LB |
| mfusr $r3, $LE |
| mfusr $r4, $LC |
| smw.adm $r1, [$sp], $r4, #0x0 /* Save even. Ok! */ |
| #elif __NDS32_EXT_IFC__ |
| mfusr $r1, $IFC_LP |
| smw.adm $r1, [$sp], $r2, #0x0 /* Save extra $r2 to keep stack 8-byte aligned. */ |
| #elif (__NDS32_EXT_ZOL__ || __NDS32_EXT_DSP__) |
| mfusr $r1, $LB |
| mfusr $r2, $LE |
| mfusr $r3, $LC |
| smw.adm $r1, [$sp], $r4, #0x0 /* Save extra $r4 to keep stack 8-byte aligned. */ |
| #endif |
| .endm |
