| # AArch64 A64 allowed instruction decoding |
| # |
| # Copyright (c) 2023 Linaro, Ltd |
| # |
| # This library is free software; you can redistribute it and/or |
| # modify it under the terms of the GNU Lesser General Public |
| # License as published by the Free Software Foundation; either |
| # version 2.1 of the License, or (at your option) any later version. |
| # |
| # This library 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 |
| # Lesser General Public License for more details. |
| # |
| # You should have received a copy of the GNU Lesser General Public |
| # License along with this library; if not, see <http://www.gnu.org/licenses/>. |
| |
| # |
| # This file is processed by scripts/decodetree.py |
| # |
| |
| &ri rd imm |
| &rri_sf rd rn imm sf |
| |
| |
| ### Data Processing - Immediate |
| |
| # PC-rel addressing |
| |
| %imm_pcrel 5:s19 29:2 |
| @pcrel . .. ..... ................... rd:5 &ri imm=%imm_pcrel |
| |
| ADR 0 .. 10000 ................... ..... @pcrel |
| ADRP 1 .. 10000 ................... ..... @pcrel |
| |
| # Add/subtract (immediate) |
| |
| %imm12_sh12 10:12 !function=shl_12 |
| @addsub_imm sf:1 .. ...... . imm:12 rn:5 rd:5 |
| @addsub_imm12 sf:1 .. ...... . ............ rn:5 rd:5 imm=%imm12_sh12 |
| |
| ADD_i . 00 100010 0 ............ ..... ..... @addsub_imm |
| ADD_i . 00 100010 1 ............ ..... ..... @addsub_imm12 |
| ADDS_i . 01 100010 0 ............ ..... ..... @addsub_imm |
| ADDS_i . 01 100010 1 ............ ..... ..... @addsub_imm12 |
| |
| SUB_i . 10 100010 0 ............ ..... ..... @addsub_imm |
| SUB_i . 10 100010 1 ............ ..... ..... @addsub_imm12 |
| SUBS_i . 11 100010 0 ............ ..... ..... @addsub_imm |
| SUBS_i . 11 100010 1 ............ ..... ..... @addsub_imm12 |
| |
| # Add/subtract (immediate with tags) |
| |
| &rri_tag rd rn uimm6 uimm4 |
| @addsub_imm_tag . .. ...... . uimm6:6 .. uimm4:4 rn:5 rd:5 &rri_tag |
| |
| ADDG_i 1 00 100011 0 ...... 00 .... ..... ..... @addsub_imm_tag |
| SUBG_i 1 10 100011 0 ...... 00 .... ..... ..... @addsub_imm_tag |
