1625e3dd4SPeter Maydell# AArch32 Neon load/store instruction descriptions 2625e3dd4SPeter Maydell# 3625e3dd4SPeter Maydell# Copyright (c) 2020 Linaro, Ltd 4625e3dd4SPeter Maydell# 5625e3dd4SPeter Maydell# This library is free software; you can redistribute it and/or 6625e3dd4SPeter Maydell# modify it under the terms of the GNU Lesser General Public 7625e3dd4SPeter Maydell# License as published by the Free Software Foundation; either 850f57e09SChetan Pant# version 2.1 of the License, or (at your option) any later version. 9625e3dd4SPeter Maydell# 10625e3dd4SPeter Maydell# This library is distributed in the hope that it will be useful, 11625e3dd4SPeter Maydell# but WITHOUT ANY WARRANTY; without even the implied warranty of 12625e3dd4SPeter Maydell# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13625e3dd4SPeter Maydell# Lesser General Public License for more details. 14625e3dd4SPeter Maydell# 15625e3dd4SPeter Maydell# You should have received a copy of the GNU Lesser General Public 16625e3dd4SPeter Maydell# License along with this library; if not, see <http://www.gnu.org/licenses/>. 17625e3dd4SPeter Maydell 18625e3dd4SPeter Maydell# 19625e3dd4SPeter Maydell# This file is processed by scripts/decodetree.py 20625e3dd4SPeter Maydell# 21625e3dd4SPeter Maydell 22625e3dd4SPeter Maydell# Encodings for Neon load/store instructions where the T32 encoding 23625e3dd4SPeter Maydell# is a simple transformation of the A32 encoding. 24625e3dd4SPeter Maydell# More specifically, this file covers instructions where the A32 encoding is 25625e3dd4SPeter Maydell# 0b1111_0100_xxx0_xxxx_xxxx_xxxx_xxxx_xxxx 26625e3dd4SPeter Maydell# and the T32 encoding is 27625e3dd4SPeter Maydell# 0b1111_1001_xxx0_xxxx_xxxx_xxxx_xxxx_xxxx 28625e3dd4SPeter Maydell# This file works on the A32 encoding only; calling code for T32 has to 29625e3dd4SPeter Maydell# transform the insn into the A32 version first. 30a27b4630SPeter Maydell 31a27b4630SPeter Maydell%vd_dp 22:1 12:4 32a27b4630SPeter Maydell 33a27b4630SPeter Maydell# Neon load/store multiple structures 34a27b4630SPeter Maydell 35a27b4630SPeter MaydellVLDST_multiple 1111 0100 0 . l:1 0 rn:4 .... itype:4 size:2 align:2 rm:4 \ 36a27b4630SPeter Maydell vd=%vd_dp 373698747cSPeter Maydell 383698747cSPeter Maydell# Neon load single element to all lanes 393698747cSPeter Maydell 403698747cSPeter MaydellVLD_all_lanes 1111 0100 1 . 1 0 rn:4 .... 11 n:2 size:2 t:1 a:1 rm:4 \ 413698747cSPeter Maydell vd=%vd_dp 42123ce4e3SPeter Maydell 43123ce4e3SPeter Maydell# Neon load/store single structure to one lane 44*8fe612a1SPeter Maydell%imm1_5_p1 5:1 !function=plus_1 45*8fe612a1SPeter Maydell%imm1_6_p1 6:1 !function=plus_1 46123ce4e3SPeter Maydell 47123ce4e3SPeter MaydellVLDST_single 1111 0100 1 . l:1 0 rn:4 .... 00 n:2 reg_idx:3 align:1 rm:4 \ 48123ce4e3SPeter Maydell vd=%vd_dp size=0 stride=1 49a736cbc3SRichard HendersonVLDST_single 1111 0100 1 . l:1 0 rn:4 .... 01 n:2 reg_idx:2 . align:1 rm:4 \ 50123ce4e3SPeter Maydell vd=%vd_dp size=1 stride=%imm1_5_p1 51a736cbc3SRichard HendersonVLDST_single 1111 0100 1 . l:1 0 rn:4 .... 10 n:2 reg_idx:1 . align:2 rm:4 \ 52123ce4e3SPeter Maydell vd=%vd_dp size=2 stride=%imm1_6_p1 53