neon-shared.decode (4119B)
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 43VCMLA 1111 110 rot:2 . 1 . .... .... 1000 . q:1 . 0 .... \ 44 vm=%vm_dp vn=%vn_dp vd=%vd_dp size=%vcadd_size 45 46VCADD 1111 110 rot:1 1 . 0 . .... .... 1000 . q:1 . 0 .... \ 47 vm=%vm_dp vn=%vn_dp vd=%vd_dp size=%vcadd_size 48 49VSDOT 1111 110 00 . 10 .... .... 1101 . q:1 . 0 .... \ 50 vm=%vm_dp vn=%vn_dp vd=%vd_dp 51VUDOT 1111 110 00 . 10 .... .... 1101 . q:1 . 1 .... \ 52 vm=%vm_dp vn=%vn_dp vd=%vd_dp 53VUSDOT 1111 110 01 . 10 .... .... 1101 . q:1 . 0 .... \ 54 vm=%vm_dp vn=%vn_dp vd=%vd_dp 55VDOT_b16 1111 110 00 . 00 .... .... 1101 . q:1 . 0 .... \ 56 vm=%vm_dp vn=%vn_dp vd=%vd_dp 57 58# VFM[AS]L 59VFML 1111 110 0 s:1 . 10 .... .... 1000 . 0 . 1 .... \ 60 vm=%vm_sp vn=%vn_sp vd=%vd_dp q=0 61VFML 1111 110 0 s:1 . 10 .... .... 1000 . 1 . 1 .... \ 62 vm=%vm_dp vn=%vn_dp vd=%vd_dp q=1 63 64VSMMLA 1111 1100 0.10 .... .... 1100 .1.0 .... \ 65 vm=%vm_dp vn=%vn_dp vd=%vd_dp 66VUMMLA 1111 1100 0.10 .... .... 1100 .1.1 .... \ 67 vm=%vm_dp vn=%vn_dp vd=%vd_dp 68VUSMMLA 1111 1100 1.10 .... .... 1100 .1.0 .... \ 69 vm=%vm_dp vn=%vn_dp vd=%vd_dp 70VMMLA_b16 1111 1100 0.00 .... .... 1100 .1.0 .... \ 71 vm=%vm_dp vn=%vn_dp vd=%vd_dp 72 73VFMA_b16 1111 110 0 0.11 .... .... 1000 . q:1 . 1 .... \ 74 vm=%vm_dp vn=%vn_dp vd=%vd_dp 75 76VCMLA_scalar 1111 1110 0 . rot:2 .... .... 1000 . q:1 index:1 0 vm:4 \ 77 vn=%vn_dp vd=%vd_dp size=1 78VCMLA_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 81VSDOT_scalar 1111 1110 0 . 10 .... .... 1101 . q:1 index:1 0 vm:4 \ 82 vn=%vn_dp vd=%vd_dp 83VUDOT_scalar 1111 1110 0 . 10 .... .... 1101 . q:1 index:1 1 vm:4 \ 84 vn=%vn_dp vd=%vd_dp 85VUSDOT_scalar 1111 1110 1 . 00 .... .... 1101 . q:1 index:1 0 vm:4 \ 86 vn=%vn_dp vd=%vd_dp 87VSUDOT_scalar 1111 1110 1 . 00 .... .... 1101 . q:1 index:1 1 vm:4 \ 88 vn=%vn_dp vd=%vd_dp 89VDOT_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 94VFML_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 96VFML_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 98VFMA_b16_scal 1111 1110 0.11 .... .... 1000 . q:1 . 1 . vm:3 \ 99 index=%vfml_scalar_q1_index vn=%vn_dp vd=%vd_dp