1625e3dd4SPeter Maydell# AArch32 Neon data-processing 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 8625e3dd4SPeter Maydell# version 2 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# 21a4e143acSPeter Maydell# VFP/Neon register fields; same as vfp.decode 22a4e143acSPeter Maydell%vm_dp 5:1 0:4 23a4e143acSPeter Maydell%vn_dp 7:1 16:4 24a4e143acSPeter Maydell%vd_dp 22:1 12:4 25625e3dd4SPeter Maydell 26625e3dd4SPeter Maydell# Encodings for Neon data processing instructions where the T32 encoding 27625e3dd4SPeter Maydell# is a simple transformation of the A32 encoding. 28625e3dd4SPeter Maydell# More specifically, this file covers instructions where the A32 encoding is 29625e3dd4SPeter Maydell# 0b1111_001p_qqqq_qqqq_qqqq_qqqq_qqqq_qqqq 30625e3dd4SPeter Maydell# and the T32 encoding is 31625e3dd4SPeter Maydell# 0b111p_1111_qqqq_qqqq_qqqq_qqqq_qqqq_qqqq 32625e3dd4SPeter Maydell# This file works on the A32 encoding only; calling code for T32 has to 33625e3dd4SPeter Maydell# transform the insn into the A32 version first. 34a4e143acSPeter Maydell 35a4e143acSPeter Maydell###################################################################### 36a4e143acSPeter Maydell# 3-reg-same grouping: 37a4e143acSPeter Maydell# 1111 001 U 0 D sz:2 Vn:4 Vd:4 opc:4 N Q M op Vm:4 38a4e143acSPeter Maydell###################################################################### 39a4e143acSPeter Maydell 40a4e143acSPeter Maydell&3same vm vn vd q size 41a4e143acSPeter Maydell 42a4e143acSPeter Maydell@3same .... ... . . . size:2 .... .... .... . q:1 . . .... \ 43a4e143acSPeter Maydell &3same vm=%vm_dp vn=%vn_dp vd=%vd_dp 44a4e143acSPeter Maydell 45*cb294bcaSPeter MaydellVHADD_S_3s 1111 001 0 0 . .. .... .... 0000 . . . 0 .... @3same 46*cb294bcaSPeter MaydellVHADD_U_3s 1111 001 1 0 . .. .... .... 0000 . . . 0 .... @3same 477a9497f1SPeter MaydellVQADD_S_3s 1111 001 0 0 . .. .... .... 0000 . . . 1 .... @3same 487a9497f1SPeter MaydellVQADD_U_3s 1111 001 1 0 . .. .... .... 0000 . . . 1 .... @3same 497a9497f1SPeter Maydell 5035a548edSPeter Maydell@3same_logic .... ... . . . .. .... .... .... . q:1 .. .... \ 5135a548edSPeter Maydell &3same vm=%vm_dp vn=%vn_dp vd=%vd_dp size=0 5235a548edSPeter Maydell 5335a548edSPeter MaydellVAND_3s 1111 001 0 0 . 00 .... .... 0001 ... 1 .... @3same_logic 5435a548edSPeter MaydellVBIC_3s 1111 001 0 0 . 01 .... .... 0001 ... 1 .... @3same_logic 5535a548edSPeter MaydellVORR_3s 1111 001 0 0 . 10 .... .... 0001 ... 1 .... @3same_logic 5635a548edSPeter MaydellVORN_3s 1111 001 0 0 . 11 .... .... 0001 ... 1 .... @3same_logic 5735a548edSPeter MaydellVEOR_3s 1111 001 1 0 . 00 .... .... 0001 ... 1 .... @3same_logic 5835a548edSPeter MaydellVBSL_3s 1111 001 1 0 . 01 .... .... 0001 ... 1 .... @3same_logic 5935a548edSPeter MaydellVBIT_3s 1111 001 1 0 . 10 .... .... 0001 ... 1 .... @3same_logic 6035a548edSPeter MaydellVBIF_3s 1111 001 1 0 . 11 .... .... 0001 ... 1 .... @3same_logic 6135a548edSPeter Maydell 627a9497f1SPeter MaydellVQSUB_S_3s 1111 001 0 0 . .. .... .... 0010 . . . 1 .... @3same 637a9497f1SPeter MaydellVQSUB_U_3s 1111 001 1 0 . .. .... .... 0010 . . . 1 .... @3same 647a9497f1SPeter Maydell 6502bd0cdbSPeter MaydellVCGT_S_3s 1111 001 0 0 . .. .... .... 0011 . . . 0 .... @3same 6602bd0cdbSPeter MaydellVCGT_U_3s 1111 001 1 0 . .. .... .... 0011 . . . 0 .... @3same 6702bd0cdbSPeter MaydellVCGE_S_3s 1111 001 0 0 . .. .... .... 0011 . . . 1 .... @3same 6802bd0cdbSPeter MaydellVCGE_U_3s 1111 001 1 0 . .. .... .... 0011 . . . 1 .... @3same 6902bd0cdbSPeter Maydell 70e9eee531SRichard Henderson# The _rev suffix indicates that Vn and Vm are reversed. This is 71e9eee531SRichard Henderson# the case for shifts. In the Arm ARM these insns are documented 72e9eee531SRichard Henderson# with the Vm and Vn fields in their usual places, but in the 73e9eee531SRichard Henderson# assembly the operands are listed "backwards", ie in the order 74e9eee531SRichard Henderson# Dd, Dm, Dn where other insns use Dd, Dn, Dm. For QEMU we choose 75e9eee531SRichard Henderson# to consider Vm and Vn as being in different fields in the insn, 76e9eee531SRichard Henderson# which allows us to avoid special-casing shifts in the trans_ 77e9eee531SRichard Henderson# function code. We would otherwise need to manually swap the operands 78e9eee531SRichard Henderson# over to call Neon helper functions that are shared with AArch64, 79e9eee531SRichard Henderson# which does not have this odd reversed-operand situation. 80e9eee531SRichard Henderson@3same_rev .... ... . . . size:2 .... .... .... . q:1 . . .... \ 81e9eee531SRichard Henderson &3same vn=%vm_dp vm=%vn_dp vd=%vd_dp 82e9eee531SRichard Henderson 83e9eee531SRichard HendersonVSHL_S_3s 1111 001 0 0 . .. .... .... 0100 . . . 0 .... @3same_rev 84e9eee531SRichard HendersonVSHL_U_3s 1111 001 1 0 . .. .... .... 0100 . . . 0 .... @3same_rev 850de34fd4SPeter Maydell 8635d4352fSPeter Maydell# Insns operating on 64-bit elements (size!=0b11 handled elsewhere) 8735d4352fSPeter Maydell# The _rev suffix indicates that Vn and Vm are reversed (as explained 8835d4352fSPeter Maydell# by the comment for the @3same_rev format). 8935d4352fSPeter Maydell@3same_64_rev .... ... . . . 11 .... .... .... . q:1 . . .... \ 9035d4352fSPeter Maydell &3same vm=%vn_dp vn=%vm_dp vd=%vd_dp size=3 9135d4352fSPeter Maydell 9235d4352fSPeter MaydellVQSHL_S64_3s 1111 001 0 0 . .. .... .... 0100 . . . 1 .... @3same_64_rev 9335d4352fSPeter MaydellVQSHL_U64_3s 1111 001 1 0 . .. .... .... 0100 . . . 1 .... @3same_64_rev 9435d4352fSPeter MaydellVRSHL_S64_3s 1111 001 0 0 . .. .... .... 0101 . . . 0 .... @3same_64_rev 9535d4352fSPeter MaydellVRSHL_U64_3s 1111 001 1 0 . .. .... .... 0101 . . . 0 .... @3same_64_rev 9635d4352fSPeter MaydellVQRSHL_S64_3s 1111 001 0 0 . .. .... .... 0101 . . . 1 .... @3same_64_rev 9735d4352fSPeter MaydellVQRSHL_U64_3s 1111 001 1 0 . .. .... .... 0101 . . . 1 .... @3same_64_rev 9835d4352fSPeter Maydell 9936b59310SPeter MaydellVMAX_S_3s 1111 001 0 0 . .. .... .... 0110 . . . 0 .... @3same 10036b59310SPeter MaydellVMAX_U_3s 1111 001 1 0 . .. .... .... 0110 . . . 0 .... @3same 10136b59310SPeter MaydellVMIN_S_3s 1111 001 0 0 . .. .... .... 0110 . . . 1 .... @3same 10236b59310SPeter MaydellVMIN_U_3s 1111 001 1 0 . .. .... .... 0110 . . . 1 .... @3same 10336b59310SPeter Maydell 104a4e143acSPeter MaydellVADD_3s 1111 001 0 0 . .. .... .... 1000 . . . 0 .... @3same 105a4e143acSPeter MaydellVSUB_3s 1111 001 1 0 . .. .... .... 1000 . . . 0 .... @3same 10602bd0cdbSPeter Maydell 10702bd0cdbSPeter MaydellVTST_3s 1111 001 0 0 . .. .... .... 1000 . . . 1 .... @3same 10802bd0cdbSPeter MaydellVCEQ_3s 1111 001 1 0 . .. .... .... 1000 . . . 1 .... @3same 1090de34fd4SPeter Maydell 1100de34fd4SPeter MaydellVMLA_3s 1111 001 0 0 . .. .... .... 1001 . . . 0 .... @3same 1110de34fd4SPeter MaydellVMLS_3s 1111 001 1 0 . .. .... .... 1001 . . . 0 .... @3same 1120de34fd4SPeter Maydell 1130de34fd4SPeter MaydellVMUL_3s 1111 001 0 0 . .. .... .... 1001 . . . 1 .... @3same 1140de34fd4SPeter MaydellVMUL_p_3s 1111 001 1 0 . .. .... .... 1001 . . . 1 .... @3same 115a0635695SPeter Maydell 116a0635695SPeter MaydellVQRDMLAH_3s 1111 001 1 0 . .. .... .... 1011 ... 1 .... @3same 11721290edfSPeter Maydell 11821290edfSPeter MaydellSHA1_3s 1111 001 0 0 . optype:2 .... .... 1100 . 1 . 0 .... \ 11921290edfSPeter Maydell vm=%vm_dp vn=%vn_dp vd=%vd_dp 12021290edfSPeter MaydellSHA256H_3s 1111 001 1 0 . 00 .... .... 1100 . 1 . 0 .... \ 12121290edfSPeter Maydell vm=%vm_dp vn=%vn_dp vd=%vd_dp 12221290edfSPeter MaydellSHA256H2_3s 1111 001 1 0 . 01 .... .... 1100 . 1 . 0 .... \ 12321290edfSPeter Maydell vm=%vm_dp vn=%vn_dp vd=%vd_dp 12421290edfSPeter MaydellSHA256SU1_3s 1111 001 1 0 . 10 .... .... 1100 . 1 . 0 .... \ 12521290edfSPeter Maydell vm=%vm_dp vn=%vn_dp vd=%vd_dp 12621290edfSPeter Maydell 127a0635695SPeter MaydellVQRDMLSH_3s 1111 001 1 0 . .. .... .... 1100 ... 1 .... @3same 128