| 1 | # AArch32 Neon instruction descriptions |
| 2 | # |
| 3 | # Copyright (c) 2020 Linaro, Ltd |
| 4 | # |
| 5 | # This library is free software; you can redistribute it and/or |
| 6 | # modify it under the terms of the GNU Lesser General Public |
| 7 | # License as published by the Free Software Foundation; either |
| 8 | # version 2.1 of the License, or (at your option) any later version. |
| 9 | # |
| 10 | # This library is distributed in the hope that it will be useful, |
| 11 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | # Lesser General Public License for more details. |
| 14 | # |
| 15 | # You should have received a copy of the GNU Lesser General Public |
| 16 | # License along with this library; if not, see <http://www.gnu.org/licenses/>. |
| 17 | |
| 18 | # |
| 19 | # This file is processed by scripts/decodetree.py |
| 20 | # |
| 21 | |
| 22 | # Encodings for Neon instructions whose encoding is the same for |
| 23 | # both A32 and T32. |
| 24 | |
| 25 | # More specifically, this covers: |
| 26 | # 2reg scalar ext: 0b1111_1110_xxxx_xxxx_xxxx_1x0x_xxxx_xxxx |
| 27 | # 3same ext: 0b1111_110x_xxxx_xxxx_xxxx_1x0x_xxxx_xxxx |
| 28 | |
| 29 | # VFP/Neon register fields; same as vfp.decode |
| 30 | %vm_dp 5:1 0:4 |
| 31 | %vm_sp 0:4 5:1 |
| 32 | %vn_dp 7:1 16:4 |
| 33 | %vn_sp 16:4 7:1 |
| 34 | %vd_dp 22:1 12:4 |
| 35 | %vd_sp 12:4 22:1 |
| 36 | |
| 37 | # For VCMLA/VCADD insns, convert the single-bit size field |
| 38 | # which is 0 for fp16 and 1 for fp32 into a MO_* constant. |
| 39 | # (Note that this is the reverse of the sense of the 1-bit size |
| 40 | # field in the 3same_fp Neon insns.) |
| 41 | %vcadd_size 20:1 !function=plus_1 |
| 42 | |
| 43 | VCMLA 1111 110 rot:2 . 1 . .... .... 1000 . q:1 . 0 .... \ |
| 44 | vm=%vm_dp vn=%vn_dp vd=%vd_dp size=%vcadd_size |
| 45 | |
| 46 | VCADD 1111 110 rot:1 1 . 0 . .... .... 1000 . q:1 . 0 .... \ |
| 47 | vm=%vm_dp vn=%vn_dp vd=%vd_dp size=%vcadd_size |
| 48 | |
| 49 | VSDOT 1111 110 00 . 10 .... .... 1101 . q:1 . 0 .... \ |
| 50 | vm=%vm_dp vn=%vn_dp vd=%vd_dp |
| 51 | VUDOT 1111 110 00 . 10 .... .... 1101 . q:1 . 1 .... \ |
| 52 | vm=%vm_dp vn=%vn_dp vd=%vd_dp |
| 53 | VUSDOT 1111 110 01 . 10 .... .... 1101 . q:1 . 0 .... \ |
| 54 | vm=%vm_dp vn=%vn_dp vd=%vd_dp |
| 55 | VDOT_b16 1111 110 00 . 00 .... .... 1101 . q:1 . 0 .... \ |
| 56 | vm=%vm_dp vn=%vn_dp vd=%vd_dp |
| 57 | |
| 58 | # VFM[AS]L |
| 59 | VFML 1111 110 0 s:1 . 10 .... .... 1000 . 0 . 1 .... \ |
| 60 | vm=%vm_sp vn=%vn_sp vd=%vd_dp q=0 |
| 61 | VFML 1111 110 0 s:1 . 10 .... .... 1000 . 1 . 1 .... \ |
| 62 | vm=%vm_dp vn=%vn_dp vd=%vd_dp q=1 |
| 63 | |
| 64 | VSMMLA 1111 1100 0.10 .... .... 1100 .1.0 .... \ |
| 65 | vm=%vm_dp vn=%vn_dp vd=%vd_dp |
| 66 | VUMMLA 1111 1100 0.10 .... .... 1100 .1.1 .... \ |
| 67 | vm=%vm_dp vn=%vn_dp vd=%vd_dp |
| 68 | VUSMMLA 1111 1100 1.10 .... .... 1100 .1.0 .... \ |
| 69 | vm=%vm_dp vn=%vn_dp vd=%vd_dp |
| 70 | VMMLA_b16 1111 1100 0.00 .... .... 1100 .1.0 .... \ |
| 71 | vm=%vm_dp vn=%vn_dp vd=%vd_dp |
| 72 | |
| 73 | VFMA_b16 1111 110 0 0.11 .... .... 1000 . q:1 . 1 .... \ |
| 74 | vm=%vm_dp vn=%vn_dp vd=%vd_dp |
| 75 | |
| 76 | VCMLA_scalar 1111 1110 0 . rot:2 .... .... 1000 . q:1 index:1 0 vm:4 \ |
| 77 | vn=%vn_dp vd=%vd_dp size=1 |
| 78 | VCMLA_scalar 1111 1110 1 . rot:2 .... .... 1000 . q:1 . 0 .... \ |
| 79 | vm=%vm_dp vn=%vn_dp vd=%vd_dp size=2 index=0 |
| 80 | |
| 81 | VSDOT_scalar 1111 1110 0 . 10 .... .... 1101 . q:1 index:1 0 vm:4 \ |
| 82 | vn=%vn_dp vd=%vd_dp |
| 83 | VUDOT_scalar 1111 1110 0 . 10 .... .... 1101 . q:1 index:1 1 vm:4 \ |
| 84 | vn=%vn_dp vd=%vd_dp |
| 85 | VUSDOT_scalar 1111 1110 1 . 00 .... .... 1101 . q:1 index:1 0 vm:4 \ |
| 86 | vn=%vn_dp vd=%vd_dp |
| 87 | VSUDOT_scalar 1111 1110 1 . 00 .... .... 1101 . q:1 index:1 1 vm:4 \ |
| 88 | vn=%vn_dp vd=%vd_dp |
| 89 | VDOT_b16_scal 1111 1110 0 . 00 .... .... 1101 . q:1 index:1 0 vm:4 \ |
| 90 | vn=%vn_dp vd=%vd_dp |
| 91 | |
| 92 | %vfml_scalar_q0_rm 0:3 5:1 |
| 93 | %vfml_scalar_q1_index 5:1 3:1 |
| 94 | VFML_scalar 1111 1110 0 . 0 s:1 .... .... 1000 . 0 . 1 index:1 ... \ |
| 95 | rm=%vfml_scalar_q0_rm vn=%vn_sp vd=%vd_dp q=0 |
| 96 | VFML_scalar 1111 1110 0 . 0 s:1 .... .... 1000 . 1 . 1 . rm:3 \ |
| 97 | index=%vfml_scalar_q1_index vn=%vn_dp vd=%vd_dp q=1 |
| 98 | VFMA_b16_scal 1111 1110 0.11 .... .... 1000 . q:1 . 1 . vm:3 \ |
| 99 | index=%vfml_scalar_q1_index vn=%vn_dp vd=%vd_dp |