1# AArch32 Neon load/store 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 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 load/store instructions where the T32 encoding 23# is a simple transformation of the A32 encoding. 24# More specifically, this file covers instructions where the A32 encoding is 25# 0b1111_0100_xxx0_xxxx_xxxx_xxxx_xxxx_xxxx 26# and the T32 encoding is 27# 0b1111_1001_xxx0_xxxx_xxxx_xxxx_xxxx_xxxx 28# This file works on the A32 encoding only; calling code for T32 has to 29# transform the insn into the A32 version first. 30 31%vd_dp 22:1 12:4 32 33# Neon load/store multiple structures 34 35VLDST_multiple 1111 0100 0 . l:1 0 rn:4 .... itype:4 size:2 align:2 rm:4 \ 36 vd=%vd_dp 37 38# Neon load single element to all lanes 39 40VLD_all_lanes 1111 0100 1 . 1 0 rn:4 .... 11 n:2 size:2 t:1 a:1 rm:4 \ 41 vd=%vd_dp 42 43# Neon load/store single structure to one lane 44%imm1_5_p1 5:1 !function=plus1 45%imm1_6_p1 6:1 !function=plus1 46 47VLDST_single 1111 0100 1 . l:1 0 rn:4 .... 00 n:2 reg_idx:3 align:1 rm:4 \ 48 vd=%vd_dp size=0 stride=1 49VLDST_single 1111 0100 1 . l:1 0 rn:4 .... 01 n:2 reg_idx:2 align:2 rm:4 \ 50 vd=%vd_dp size=1 stride=%imm1_5_p1 51VLDST_single 1111 0100 1 . l:1 0 rn:4 .... 10 n:2 reg_idx:1 align:3 rm:4 \ 52 vd=%vd_dp size=2 stride=%imm1_6_p1 53