647 lines
32 KiB
Plaintext
647 lines
32 KiB
Plaintext
# AArch32 Neon data-processing instruction descriptions
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#
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# Copyright (c) 2020 Linaro, Ltd
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, see <http://www.gnu.org/licenses/>.
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#
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# This file is processed by scripts/decodetree.py
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#
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# VFP/Neon register fields; same as vfp.decode
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%vm_dp 5:1 0:4
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%vn_dp 7:1 16:4
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%vd_dp 22:1 12:4
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# Encodings for Neon data processing instructions where the T32 encoding
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# is a simple transformation of the A32 encoding.
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# More specifically, this file covers instructions where the A32 encoding is
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# 0b1111_001p_qqqq_qqqq_qqqq_qqqq_qqqq_qqqq
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# and the T32 encoding is
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# 0b111p_1111_qqqq_qqqq_qqqq_qqqq_qqqq_qqqq
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# This file works on the A32 encoding only; calling code for T32 has to
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# transform the insn into the A32 version first.
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######################################################################
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# 3-reg-same grouping:
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# 1111 001 U 0 D sz:2 Vn:4 Vd:4 opc:4 N Q M op Vm:4
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######################################################################
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&3same vm vn vd q size
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@3same .... ... . . . size:2 .... .... .... . q:1 . . .... \
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&3same vm=%vm_dp vn=%vn_dp vd=%vd_dp
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@3same_q0 .... ... . . . size:2 .... .... .... . 0 . . .... \
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&3same vm=%vm_dp vn=%vn_dp vd=%vd_dp q=0
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# For FP insns the high bit of 'size' is used as part of opcode decode,
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# and the 'size' bit is 0 for 32-bit float and 1 for 16-bit float.
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# This converts this encoding to the same MO_8/16/32/64 values that the
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# integer neon insns use.
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%3same_fp_size 20:1 !function=neon_3same_fp_size
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@3same_fp .... ... . . . . . .... .... .... . q:1 . . .... \
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&3same vm=%vm_dp vn=%vn_dp vd=%vd_dp size=%3same_fp_size
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@3same_fp_q0 .... ... . . . . . .... .... .... . 0 . . .... \
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&3same vm=%vm_dp vn=%vn_dp vd=%vd_dp q=0 size=%3same_fp_size
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VHADD_S_3s 1111 001 0 0 . .. .... .... 0000 . . . 0 .... @3same
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VHADD_U_3s 1111 001 1 0 . .. .... .... 0000 . . . 0 .... @3same
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VQADD_S_3s 1111 001 0 0 . .. .... .... 0000 . . . 1 .... @3same
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VQADD_U_3s 1111 001 1 0 . .. .... .... 0000 . . . 1 .... @3same
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VRHADD_S_3s 1111 001 0 0 . .. .... .... 0001 . . . 0 .... @3same
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VRHADD_U_3s 1111 001 1 0 . .. .... .... 0001 . . . 0 .... @3same
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@3same_logic .... ... . . . .. .... .... .... . q:1 .. .... \
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&3same vm=%vm_dp vn=%vn_dp vd=%vd_dp size=0
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VAND_3s 1111 001 0 0 . 00 .... .... 0001 ... 1 .... @3same_logic
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VBIC_3s 1111 001 0 0 . 01 .... .... 0001 ... 1 .... @3same_logic
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VORR_3s 1111 001 0 0 . 10 .... .... 0001 ... 1 .... @3same_logic
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VORN_3s 1111 001 0 0 . 11 .... .... 0001 ... 1 .... @3same_logic
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VEOR_3s 1111 001 1 0 . 00 .... .... 0001 ... 1 .... @3same_logic
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VBSL_3s 1111 001 1 0 . 01 .... .... 0001 ... 1 .... @3same_logic
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VBIT_3s 1111 001 1 0 . 10 .... .... 0001 ... 1 .... @3same_logic
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VBIF_3s 1111 001 1 0 . 11 .... .... 0001 ... 1 .... @3same_logic
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VHSUB_S_3s 1111 001 0 0 . .. .... .... 0010 . . . 0 .... @3same
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VHSUB_U_3s 1111 001 1 0 . .. .... .... 0010 . . . 0 .... @3same
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VQSUB_S_3s 1111 001 0 0 . .. .... .... 0010 . . . 1 .... @3same
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VQSUB_U_3s 1111 001 1 0 . .. .... .... 0010 . . . 1 .... @3same
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VCGT_S_3s 1111 001 0 0 . .. .... .... 0011 . . . 0 .... @3same
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VCGT_U_3s 1111 001 1 0 . .. .... .... 0011 . . . 0 .... @3same
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VCGE_S_3s 1111 001 0 0 . .. .... .... 0011 . . . 1 .... @3same
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VCGE_U_3s 1111 001 1 0 . .. .... .... 0011 . . . 1 .... @3same
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# The _rev suffix indicates that Vn and Vm are reversed. This is
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# the case for shifts. In the Arm ARM these insns are documented
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# with the Vm and Vn fields in their usual places, but in the
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# assembly the operands are listed "backwards", ie in the order
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# Dd, Dm, Dn where other insns use Dd, Dn, Dm. For QEMU we choose
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# to consider Vm and Vn as being in different fields in the insn,
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# which allows us to avoid special-casing shifts in the trans_
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# function code. We would otherwise need to manually swap the operands
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# over to call Neon helper functions that are shared with AArch64,
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# which does not have this odd reversed-operand situation.
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@3same_rev .... ... . . . size:2 .... .... .... . q:1 . . .... \
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&3same vn=%vm_dp vm=%vn_dp vd=%vd_dp
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VSHL_S_3s 1111 001 0 0 . .. .... .... 0100 . . . 0 .... @3same_rev
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VSHL_U_3s 1111 001 1 0 . .. .... .... 0100 . . . 0 .... @3same_rev
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# Insns operating on 64-bit elements (size!=0b11 handled elsewhere)
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# The _rev suffix indicates that Vn and Vm are reversed (as explained
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# by the comment for the @3same_rev format).
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@3same_64_rev .... ... . . . 11 .... .... .... . q:1 . . .... \
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&3same vm=%vn_dp vn=%vm_dp vd=%vd_dp size=3
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{
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VQSHL_S64_3s 1111 001 0 0 . .. .... .... 0100 . . . 1 .... @3same_64_rev
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VQSHL_S_3s 1111 001 0 0 . .. .... .... 0100 . . . 1 .... @3same_rev
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}
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{
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VQSHL_U64_3s 1111 001 1 0 . .. .... .... 0100 . . . 1 .... @3same_64_rev
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VQSHL_U_3s 1111 001 1 0 . .. .... .... 0100 . . . 1 .... @3same_rev
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}
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{
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VRSHL_S64_3s 1111 001 0 0 . .. .... .... 0101 . . . 0 .... @3same_64_rev
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VRSHL_S_3s 1111 001 0 0 . .. .... .... 0101 . . . 0 .... @3same_rev
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}
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{
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VRSHL_U64_3s 1111 001 1 0 . .. .... .... 0101 . . . 0 .... @3same_64_rev
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VRSHL_U_3s 1111 001 1 0 . .. .... .... 0101 . . . 0 .... @3same_rev
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}
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{
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VQRSHL_S64_3s 1111 001 0 0 . .. .... .... 0101 . . . 1 .... @3same_64_rev
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VQRSHL_S_3s 1111 001 0 0 . .. .... .... 0101 . . . 1 .... @3same_rev
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}
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{
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VQRSHL_U64_3s 1111 001 1 0 . .. .... .... 0101 . . . 1 .... @3same_64_rev
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VQRSHL_U_3s 1111 001 1 0 . .. .... .... 0101 . . . 1 .... @3same_rev
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}
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VMAX_S_3s 1111 001 0 0 . .. .... .... 0110 . . . 0 .... @3same
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VMAX_U_3s 1111 001 1 0 . .. .... .... 0110 . . . 0 .... @3same
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VMIN_S_3s 1111 001 0 0 . .. .... .... 0110 . . . 1 .... @3same
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VMIN_U_3s 1111 001 1 0 . .. .... .... 0110 . . . 1 .... @3same
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VABD_S_3s 1111 001 0 0 . .. .... .... 0111 . . . 0 .... @3same
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VABD_U_3s 1111 001 1 0 . .. .... .... 0111 . . . 0 .... @3same
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VABA_S_3s 1111 001 0 0 . .. .... .... 0111 . . . 1 .... @3same
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VABA_U_3s 1111 001 1 0 . .. .... .... 0111 . . . 1 .... @3same
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VADD_3s 1111 001 0 0 . .. .... .... 1000 . . . 0 .... @3same
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VSUB_3s 1111 001 1 0 . .. .... .... 1000 . . . 0 .... @3same
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VTST_3s 1111 001 0 0 . .. .... .... 1000 . . . 1 .... @3same
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VCEQ_3s 1111 001 1 0 . .. .... .... 1000 . . . 1 .... @3same
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VMLA_3s 1111 001 0 0 . .. .... .... 1001 . . . 0 .... @3same
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VMLS_3s 1111 001 1 0 . .. .... .... 1001 . . . 0 .... @3same
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VMUL_3s 1111 001 0 0 . .. .... .... 1001 . . . 1 .... @3same
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VMUL_p_3s 1111 001 1 0 . .. .... .... 1001 . . . 1 .... @3same
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VPMAX_S_3s 1111 001 0 0 . .. .... .... 1010 . . . 0 .... @3same_q0
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VPMAX_U_3s 1111 001 1 0 . .. .... .... 1010 . . . 0 .... @3same_q0
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VPMIN_S_3s 1111 001 0 0 . .. .... .... 1010 . . . 1 .... @3same_q0
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VPMIN_U_3s 1111 001 1 0 . .. .... .... 1010 . . . 1 .... @3same_q0
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VQDMULH_3s 1111 001 0 0 . .. .... .... 1011 . . . 0 .... @3same
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VQRDMULH_3s 1111 001 1 0 . .. .... .... 1011 . . . 0 .... @3same
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VPADD_3s 1111 001 0 0 . .. .... .... 1011 . . . 1 .... @3same_q0
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VQRDMLAH_3s 1111 001 1 0 . .. .... .... 1011 ... 1 .... @3same
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@3same_crypto .... .... .... .... .... .... .... .... \
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&3same vm=%vm_dp vn=%vn_dp vd=%vd_dp size=0 q=1
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SHA1C_3s 1111 001 0 0 . 00 .... .... 1100 . 1 . 0 .... @3same_crypto
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SHA1P_3s 1111 001 0 0 . 01 .... .... 1100 . 1 . 0 .... @3same_crypto
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SHA1M_3s 1111 001 0 0 . 10 .... .... 1100 . 1 . 0 .... @3same_crypto
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SHA1SU0_3s 1111 001 0 0 . 11 .... .... 1100 . 1 . 0 .... @3same_crypto
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SHA256H_3s 1111 001 1 0 . 00 .... .... 1100 . 1 . 0 .... @3same_crypto
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SHA256H2_3s 1111 001 1 0 . 01 .... .... 1100 . 1 . 0 .... @3same_crypto
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SHA256SU1_3s 1111 001 1 0 . 10 .... .... 1100 . 1 . 0 .... @3same_crypto
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VFMA_fp_3s 1111 001 0 0 . 0 . .... .... 1100 ... 1 .... @3same_fp
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VFMS_fp_3s 1111 001 0 0 . 1 . .... .... 1100 ... 1 .... @3same_fp
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VQRDMLSH_3s 1111 001 1 0 . .. .... .... 1100 ... 1 .... @3same
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VADD_fp_3s 1111 001 0 0 . 0 . .... .... 1101 ... 0 .... @3same_fp
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VSUB_fp_3s 1111 001 0 0 . 1 . .... .... 1101 ... 0 .... @3same_fp
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VPADD_fp_3s 1111 001 1 0 . 0 . .... .... 1101 ... 0 .... @3same_fp_q0
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VABD_fp_3s 1111 001 1 0 . 1 . .... .... 1101 ... 0 .... @3same_fp
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VMLA_fp_3s 1111 001 0 0 . 0 . .... .... 1101 ... 1 .... @3same_fp
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VMLS_fp_3s 1111 001 0 0 . 1 . .... .... 1101 ... 1 .... @3same_fp
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VMUL_fp_3s 1111 001 1 0 . 0 . .... .... 1101 ... 1 .... @3same_fp
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VCEQ_fp_3s 1111 001 0 0 . 0 . .... .... 1110 ... 0 .... @3same_fp
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VCGE_fp_3s 1111 001 1 0 . 0 . .... .... 1110 ... 0 .... @3same_fp
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VACGE_fp_3s 1111 001 1 0 . 0 . .... .... 1110 ... 1 .... @3same_fp
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VCGT_fp_3s 1111 001 1 0 . 1 . .... .... 1110 ... 0 .... @3same_fp
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VACGT_fp_3s 1111 001 1 0 . 1 . .... .... 1110 ... 1 .... @3same_fp
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VMAX_fp_3s 1111 001 0 0 . 0 . .... .... 1111 ... 0 .... @3same_fp
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VMIN_fp_3s 1111 001 0 0 . 1 . .... .... 1111 ... 0 .... @3same_fp
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VPMAX_fp_3s 1111 001 1 0 . 0 . .... .... 1111 ... 0 .... @3same_fp_q0
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VPMIN_fp_3s 1111 001 1 0 . 1 . .... .... 1111 ... 0 .... @3same_fp_q0
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VRECPS_fp_3s 1111 001 0 0 . 0 . .... .... 1111 ... 1 .... @3same_fp
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VRSQRTS_fp_3s 1111 001 0 0 . 1 . .... .... 1111 ... 1 .... @3same_fp
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VMAXNM_fp_3s 1111 001 1 0 . 0 . .... .... 1111 ... 1 .... @3same_fp
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VMINNM_fp_3s 1111 001 1 0 . 1 . .... .... 1111 ... 1 .... @3same_fp
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######################################################################
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# 2-reg-and-shift grouping:
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# 1111 001 U 1 D immH:3 immL:3 Vd:4 opc:4 L Q M 1 Vm:4
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######################################################################
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&2reg_shift vm vd q shift size
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# Right shifts are encoded as N - shift, where N is the element size in bits.
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%neon_rshift_i6 16:6 !function=rsub_64
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%neon_rshift_i5 16:5 !function=rsub_32
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%neon_rshift_i4 16:4 !function=rsub_16
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%neon_rshift_i3 16:3 !function=rsub_8
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@2reg_shr_d .... ... . . . ...... .... .... 1 q:1 . . .... \
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&2reg_shift vm=%vm_dp vd=%vd_dp size=3 shift=%neon_rshift_i6
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@2reg_shr_s .... ... . . . 1 ..... .... .... 0 q:1 . . .... \
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&2reg_shift vm=%vm_dp vd=%vd_dp size=2 shift=%neon_rshift_i5
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@2reg_shr_h .... ... . . . 01 .... .... .... 0 q:1 . . .... \
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&2reg_shift vm=%vm_dp vd=%vd_dp size=1 shift=%neon_rshift_i4
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@2reg_shr_b .... ... . . . 001 ... .... .... 0 q:1 . . .... \
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&2reg_shift vm=%vm_dp vd=%vd_dp size=0 shift=%neon_rshift_i3
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@2reg_shl_d .... ... . . . shift:6 .... .... 1 q:1 . . .... \
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&2reg_shift vm=%vm_dp vd=%vd_dp size=3
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@2reg_shl_s .... ... . . . 1 shift:5 .... .... 0 q:1 . . .... \
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&2reg_shift vm=%vm_dp vd=%vd_dp size=2
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@2reg_shl_h .... ... . . . 01 shift:4 .... .... 0 q:1 . . .... \
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&2reg_shift vm=%vm_dp vd=%vd_dp size=1
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@2reg_shl_b .... ... . . . 001 shift:3 .... .... 0 q:1 . . .... \
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&2reg_shift vm=%vm_dp vd=%vd_dp size=0
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# Narrowing right shifts: here the Q bit is part of the opcode decode
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@2reg_shrn_d .... ... . . . 1 ..... .... .... 0 . . . .... \
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&2reg_shift vm=%vm_dp vd=%vd_dp size=3 q=0 \
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shift=%neon_rshift_i5
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@2reg_shrn_s .... ... . . . 01 .... .... .... 0 . . . .... \
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&2reg_shift vm=%vm_dp vd=%vd_dp size=2 q=0 \
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shift=%neon_rshift_i4
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@2reg_shrn_h .... ... . . . 001 ... .... .... 0 . . . .... \
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&2reg_shift vm=%vm_dp vd=%vd_dp size=1 q=0 \
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shift=%neon_rshift_i3
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# Long left shifts: again Q is part of opcode decode
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@2reg_shll_s .... ... . . . 1 shift:5 .... .... 0 . . . .... \
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&2reg_shift vm=%vm_dp vd=%vd_dp size=2 q=0
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@2reg_shll_h .... ... . . . 01 shift:4 .... .... 0 . . . .... \
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&2reg_shift vm=%vm_dp vd=%vd_dp size=1 q=0
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@2reg_shll_b .... ... . . . 001 shift:3 .... .... 0 . . . .... \
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&2reg_shift vm=%vm_dp vd=%vd_dp size=0 q=0
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@2reg_vcvt .... ... . . . 1 ..... .... .... . q:1 . . .... \
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&2reg_shift vm=%vm_dp vd=%vd_dp size=2 shift=%neon_rshift_i5
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@2reg_vcvt_f16 .... ... . . . 11 .... .... .... . q:1 . . .... \
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&2reg_shift vm=%vm_dp vd=%vd_dp size=1 shift=%neon_rshift_i4
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VSHR_S_2sh 1111 001 0 1 . ...... .... 0000 . . . 1 .... @2reg_shr_d
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VSHR_S_2sh 1111 001 0 1 . ...... .... 0000 . . . 1 .... @2reg_shr_s
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VSHR_S_2sh 1111 001 0 1 . ...... .... 0000 . . . 1 .... @2reg_shr_h
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VSHR_S_2sh 1111 001 0 1 . ...... .... 0000 . . . 1 .... @2reg_shr_b
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VSHR_U_2sh 1111 001 1 1 . ...... .... 0000 . . . 1 .... @2reg_shr_d
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VSHR_U_2sh 1111 001 1 1 . ...... .... 0000 . . . 1 .... @2reg_shr_s
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VSHR_U_2sh 1111 001 1 1 . ...... .... 0000 . . . 1 .... @2reg_shr_h
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VSHR_U_2sh 1111 001 1 1 . ...... .... 0000 . . . 1 .... @2reg_shr_b
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VSRA_S_2sh 1111 001 0 1 . ...... .... 0001 . . . 1 .... @2reg_shr_d
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VSRA_S_2sh 1111 001 0 1 . ...... .... 0001 . . . 1 .... @2reg_shr_s
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VSRA_S_2sh 1111 001 0 1 . ...... .... 0001 . . . 1 .... @2reg_shr_h
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VSRA_S_2sh 1111 001 0 1 . ...... .... 0001 . . . 1 .... @2reg_shr_b
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VSRA_U_2sh 1111 001 1 1 . ...... .... 0001 . . . 1 .... @2reg_shr_d
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VSRA_U_2sh 1111 001 1 1 . ...... .... 0001 . . . 1 .... @2reg_shr_s
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VSRA_U_2sh 1111 001 1 1 . ...... .... 0001 . . . 1 .... @2reg_shr_h
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VSRA_U_2sh 1111 001 1 1 . ...... .... 0001 . . . 1 .... @2reg_shr_b
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VRSHR_S_2sh 1111 001 0 1 . ...... .... 0010 . . . 1 .... @2reg_shr_d
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VRSHR_S_2sh 1111 001 0 1 . ...... .... 0010 . . . 1 .... @2reg_shr_s
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VRSHR_S_2sh 1111 001 0 1 . ...... .... 0010 . . . 1 .... @2reg_shr_h
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VRSHR_S_2sh 1111 001 0 1 . ...... .... 0010 . . . 1 .... @2reg_shr_b
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VRSHR_U_2sh 1111 001 1 1 . ...... .... 0010 . . . 1 .... @2reg_shr_d
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VRSHR_U_2sh 1111 001 1 1 . ...... .... 0010 . . . 1 .... @2reg_shr_s
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VRSHR_U_2sh 1111 001 1 1 . ...... .... 0010 . . . 1 .... @2reg_shr_h
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VRSHR_U_2sh 1111 001 1 1 . ...... .... 0010 . . . 1 .... @2reg_shr_b
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VRSRA_S_2sh 1111 001 0 1 . ...... .... 0011 . . . 1 .... @2reg_shr_d
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VRSRA_S_2sh 1111 001 0 1 . ...... .... 0011 . . . 1 .... @2reg_shr_s
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VRSRA_S_2sh 1111 001 0 1 . ...... .... 0011 . . . 1 .... @2reg_shr_h
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VRSRA_S_2sh 1111 001 0 1 . ...... .... 0011 . . . 1 .... @2reg_shr_b
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VRSRA_U_2sh 1111 001 1 1 . ...... .... 0011 . . . 1 .... @2reg_shr_d
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VRSRA_U_2sh 1111 001 1 1 . ...... .... 0011 . . . 1 .... @2reg_shr_s
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VRSRA_U_2sh 1111 001 1 1 . ...... .... 0011 . . . 1 .... @2reg_shr_h
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VRSRA_U_2sh 1111 001 1 1 . ...... .... 0011 . . . 1 .... @2reg_shr_b
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VSRI_2sh 1111 001 1 1 . ...... .... 0100 . . . 1 .... @2reg_shr_d
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VSRI_2sh 1111 001 1 1 . ...... .... 0100 . . . 1 .... @2reg_shr_s
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VSRI_2sh 1111 001 1 1 . ...... .... 0100 . . . 1 .... @2reg_shr_h
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VSRI_2sh 1111 001 1 1 . ...... .... 0100 . . . 1 .... @2reg_shr_b
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VSHL_2sh 1111 001 0 1 . ...... .... 0101 . . . 1 .... @2reg_shl_d
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VSHL_2sh 1111 001 0 1 . ...... .... 0101 . . . 1 .... @2reg_shl_s
|
|
VSHL_2sh 1111 001 0 1 . ...... .... 0101 . . . 1 .... @2reg_shl_h
|
|
VSHL_2sh 1111 001 0 1 . ...... .... 0101 . . . 1 .... @2reg_shl_b
|
|
|
|
VSLI_2sh 1111 001 1 1 . ...... .... 0101 . . . 1 .... @2reg_shl_d
|
|
VSLI_2sh 1111 001 1 1 . ...... .... 0101 . . . 1 .... @2reg_shl_s
|
|
VSLI_2sh 1111 001 1 1 . ...... .... 0101 . . . 1 .... @2reg_shl_h
|
|
VSLI_2sh 1111 001 1 1 . ...... .... 0101 . . . 1 .... @2reg_shl_b
|
|
|
|
VQSHLU_64_2sh 1111 001 1 1 . ...... .... 0110 . . . 1 .... @2reg_shl_d
|
|
VQSHLU_2sh 1111 001 1 1 . ...... .... 0110 . . . 1 .... @2reg_shl_s
|
|
VQSHLU_2sh 1111 001 1 1 . ...... .... 0110 . . . 1 .... @2reg_shl_h
|
|
VQSHLU_2sh 1111 001 1 1 . ...... .... 0110 . . . 1 .... @2reg_shl_b
|
|
|
|
VQSHL_S_64_2sh 1111 001 0 1 . ...... .... 0111 . . . 1 .... @2reg_shl_d
|
|
VQSHL_S_2sh 1111 001 0 1 . ...... .... 0111 . . . 1 .... @2reg_shl_s
|
|
VQSHL_S_2sh 1111 001 0 1 . ...... .... 0111 . . . 1 .... @2reg_shl_h
|
|
VQSHL_S_2sh 1111 001 0 1 . ...... .... 0111 . . . 1 .... @2reg_shl_b
|
|
|
|
VQSHL_U_64_2sh 1111 001 1 1 . ...... .... 0111 . . . 1 .... @2reg_shl_d
|
|
VQSHL_U_2sh 1111 001 1 1 . ...... .... 0111 . . . 1 .... @2reg_shl_s
|
|
VQSHL_U_2sh 1111 001 1 1 . ...... .... 0111 . . . 1 .... @2reg_shl_h
|
|
VQSHL_U_2sh 1111 001 1 1 . ...... .... 0111 . . . 1 .... @2reg_shl_b
|
|
|
|
VSHRN_64_2sh 1111 001 0 1 . ...... .... 1000 . 0 . 1 .... @2reg_shrn_d
|
|
VSHRN_32_2sh 1111 001 0 1 . ...... .... 1000 . 0 . 1 .... @2reg_shrn_s
|
|
VSHRN_16_2sh 1111 001 0 1 . ...... .... 1000 . 0 . 1 .... @2reg_shrn_h
|
|
|
|
VRSHRN_64_2sh 1111 001 0 1 . ...... .... 1000 . 1 . 1 .... @2reg_shrn_d
|
|
VRSHRN_32_2sh 1111 001 0 1 . ...... .... 1000 . 1 . 1 .... @2reg_shrn_s
|
|
VRSHRN_16_2sh 1111 001 0 1 . ...... .... 1000 . 1 . 1 .... @2reg_shrn_h
|
|
|
|
VQSHRUN_64_2sh 1111 001 1 1 . ...... .... 1000 . 0 . 1 .... @2reg_shrn_d
|
|
VQSHRUN_32_2sh 1111 001 1 1 . ...... .... 1000 . 0 . 1 .... @2reg_shrn_s
|
|
VQSHRUN_16_2sh 1111 001 1 1 . ...... .... 1000 . 0 . 1 .... @2reg_shrn_h
|
|
|
|
VQRSHRUN_64_2sh 1111 001 1 1 . ...... .... 1000 . 1 . 1 .... @2reg_shrn_d
|
|
VQRSHRUN_32_2sh 1111 001 1 1 . ...... .... 1000 . 1 . 1 .... @2reg_shrn_s
|
|
VQRSHRUN_16_2sh 1111 001 1 1 . ...... .... 1000 . 1 . 1 .... @2reg_shrn_h
|
|
|
|
# VQSHRN with signed input
|
|
VQSHRN_S64_2sh 1111 001 0 1 . ...... .... 1001 . 0 . 1 .... @2reg_shrn_d
|
|
VQSHRN_S32_2sh 1111 001 0 1 . ...... .... 1001 . 0 . 1 .... @2reg_shrn_s
|
|
VQSHRN_S16_2sh 1111 001 0 1 . ...... .... 1001 . 0 . 1 .... @2reg_shrn_h
|
|
|
|
# VQRSHRN with signed input
|
|
VQRSHRN_S64_2sh 1111 001 0 1 . ...... .... 1001 . 1 . 1 .... @2reg_shrn_d
|
|
VQRSHRN_S32_2sh 1111 001 0 1 . ...... .... 1001 . 1 . 1 .... @2reg_shrn_s
|
|
VQRSHRN_S16_2sh 1111 001 0 1 . ...... .... 1001 . 1 . 1 .... @2reg_shrn_h
|
|
|
|
# VQSHRN with unsigned input
|
|
VQSHRN_U64_2sh 1111 001 1 1 . ...... .... 1001 . 0 . 1 .... @2reg_shrn_d
|
|
VQSHRN_U32_2sh 1111 001 1 1 . ...... .... 1001 . 0 . 1 .... @2reg_shrn_s
|
|
VQSHRN_U16_2sh 1111 001 1 1 . ...... .... 1001 . 0 . 1 .... @2reg_shrn_h
|
|
|
|
# VQRSHRN with unsigned input
|
|
VQRSHRN_U64_2sh 1111 001 1 1 . ...... .... 1001 . 1 . 1 .... @2reg_shrn_d
|
|
VQRSHRN_U32_2sh 1111 001 1 1 . ...... .... 1001 . 1 . 1 .... @2reg_shrn_s
|
|
VQRSHRN_U16_2sh 1111 001 1 1 . ...... .... 1001 . 1 . 1 .... @2reg_shrn_h
|
|
|
|
VSHLL_S_2sh 1111 001 0 1 . ...... .... 1010 . 0 . 1 .... @2reg_shll_s
|
|
VSHLL_S_2sh 1111 001 0 1 . ...... .... 1010 . 0 . 1 .... @2reg_shll_h
|
|
VSHLL_S_2sh 1111 001 0 1 . ...... .... 1010 . 0 . 1 .... @2reg_shll_b
|
|
|
|
VSHLL_U_2sh 1111 001 1 1 . ...... .... 1010 . 0 . 1 .... @2reg_shll_s
|
|
VSHLL_U_2sh 1111 001 1 1 . ...... .... 1010 . 0 . 1 .... @2reg_shll_h
|
|
VSHLL_U_2sh 1111 001 1 1 . ...... .... 1010 . 0 . 1 .... @2reg_shll_b
|
|
|
|
# VCVT fixed<->float conversions
|
|
VCVT_SH_2sh 1111 001 0 1 . ...... .... 1100 0 . . 1 .... @2reg_vcvt_f16
|
|
VCVT_UH_2sh 1111 001 1 1 . ...... .... 1100 0 . . 1 .... @2reg_vcvt_f16
|
|
VCVT_HS_2sh 1111 001 0 1 . ...... .... 1101 0 . . 1 .... @2reg_vcvt_f16
|
|
VCVT_HU_2sh 1111 001 1 1 . ...... .... 1101 0 . . 1 .... @2reg_vcvt_f16
|
|
|
|
VCVT_SF_2sh 1111 001 0 1 . ...... .... 1110 0 . . 1 .... @2reg_vcvt
|
|
VCVT_UF_2sh 1111 001 1 1 . ...... .... 1110 0 . . 1 .... @2reg_vcvt
|
|
VCVT_FS_2sh 1111 001 0 1 . ...... .... 1111 0 . . 1 .... @2reg_vcvt
|
|
VCVT_FU_2sh 1111 001 1 1 . ...... .... 1111 0 . . 1 .... @2reg_vcvt
|
|
|
|
######################################################################
|
|
# 1-reg-and-modified-immediate grouping:
|
|
# 1111 001 i 1 D 000 imm:3 Vd:4 cmode:4 0 Q op 1 Vm:4
|
|
######################################################################
|
|
|
|
&1reg_imm vd q imm cmode op
|
|
|
|
%asimd_imm_value 24:1 16:3 0:4
|
|
|
|
@1reg_imm .... ... . . . ... ... .... .... . q:1 . . .... \
|
|
&1reg_imm imm=%asimd_imm_value vd=%vd_dp
|
|
|
|
# The cmode/op bits here decode VORR/VBIC/VMOV/VMNV, but
|
|
# not in a way we can conveniently represent in decodetree without
|
|
# a lot of repetition:
|
|
# VORR: op=0, (cmode & 1) && cmode < 12
|
|
# VBIC: op=1, (cmode & 1) && cmode < 12
|
|
# VMOV: everything else
|
|
# So we have a single decode line and check the cmode/op in the
|
|
# trans function.
|
|
Vimm_1r 1111 001 . 1 . 000 ... .... cmode:4 0 . op:1 1 .... @1reg_imm
|
|
|
|
######################################################################
|
|
# Within the "two registers, or three registers of different lengths"
|
|
# grouping ([23,4]=0b10), bits [21:20] are either part of the opcode
|
|
# decode: 0b11 for VEXT, two-reg-misc, VTBL, and duplicate-scalar;
|
|
# or they are a size field for the three-reg-different-lengths and
|
|
# two-reg-and-scalar insn groups (where size cannot be 0b11). This
|
|
# is slightly awkward for decodetree: we handle it with this
|
|
# non-exclusive group which contains within it two exclusive groups:
|
|
# one for the size=0b11 patterns, and one for the size-not-0b11
|
|
# patterns. This allows us to check that none of the insns within
|
|
# each subgroup accidentally overlap each other. Note that all the
|
|
# trans functions for the size-not-0b11 patterns must check and
|
|
# return false for size==3.
|
|
######################################################################
|
|
{
|
|
[
|
|
##################################################################
|
|
# Miscellaneous size=0b11 insns
|
|
##################################################################
|
|
VEXT 1111 001 0 1 . 11 .... .... imm:4 . q:1 . 0 .... \
|
|
vm=%vm_dp vn=%vn_dp vd=%vd_dp
|
|
|
|
VTBL 1111 001 1 1 . 11 .... .... 10 len:2 . op:1 . 0 .... \
|
|
vm=%vm_dp vn=%vn_dp vd=%vd_dp
|
|
|
|
VDUP_scalar 1111 001 1 1 . 11 index:3 1 .... 11 000 q:1 . 0 .... \
|
|
vm=%vm_dp vd=%vd_dp size=0
|
|
VDUP_scalar 1111 001 1 1 . 11 index:2 10 .... 11 000 q:1 . 0 .... \
|
|
vm=%vm_dp vd=%vd_dp size=1
|
|
VDUP_scalar 1111 001 1 1 . 11 index:1 100 .... 11 000 q:1 . 0 .... \
|
|
vm=%vm_dp vd=%vd_dp size=2
|
|
|
|
##################################################################
|
|
# 2-reg-misc grouping:
|
|
# 1111 001 11 D 11 size:2 opc1:2 Vd:4 0 opc2:4 q:1 M 0 Vm:4
|
|
##################################################################
|
|
|
|
&2misc vd vm q size
|
|
|
|
@2misc .... ... .. . .. size:2 .. .... . .... q:1 . . .... \
|
|
&2misc vm=%vm_dp vd=%vd_dp
|
|
@2misc_q0 .... ... .. . .. size:2 .. .... . .... . . . .... \
|
|
&2misc vm=%vm_dp vd=%vd_dp q=0
|
|
@2misc_q1 .... ... .. . .. size:2 .. .... . .... . . . .... \
|
|
&2misc vm=%vm_dp vd=%vd_dp q=1
|
|
|
|
VREV64 1111 001 11 . 11 .. 00 .... 0 0000 . . 0 .... @2misc
|
|
VREV32 1111 001 11 . 11 .. 00 .... 0 0001 . . 0 .... @2misc
|
|
VREV16 1111 001 11 . 11 .. 00 .... 0 0010 . . 0 .... @2misc
|
|
|
|
VPADDL_S 1111 001 11 . 11 .. 00 .... 0 0100 . . 0 .... @2misc
|
|
VPADDL_U 1111 001 11 . 11 .. 00 .... 0 0101 . . 0 .... @2misc
|
|
|
|
AESE 1111 001 11 . 11 .. 00 .... 0 0110 0 . 0 .... @2misc_q1
|
|
AESD 1111 001 11 . 11 .. 00 .... 0 0110 1 . 0 .... @2misc_q1
|
|
AESMC 1111 001 11 . 11 .. 00 .... 0 0111 0 . 0 .... @2misc_q1
|
|
AESIMC 1111 001 11 . 11 .. 00 .... 0 0111 1 . 0 .... @2misc_q1
|
|
|
|
VCLS 1111 001 11 . 11 .. 00 .... 0 1000 . . 0 .... @2misc
|
|
VCLZ 1111 001 11 . 11 .. 00 .... 0 1001 . . 0 .... @2misc
|
|
VCNT 1111 001 11 . 11 .. 00 .... 0 1010 . . 0 .... @2misc
|
|
|
|
VMVN 1111 001 11 . 11 .. 00 .... 0 1011 . . 0 .... @2misc
|
|
|
|
VPADAL_S 1111 001 11 . 11 .. 00 .... 0 1100 . . 0 .... @2misc
|
|
VPADAL_U 1111 001 11 . 11 .. 00 .... 0 1101 . . 0 .... @2misc
|
|
|
|
VQABS 1111 001 11 . 11 .. 00 .... 0 1110 . . 0 .... @2misc
|
|
VQNEG 1111 001 11 . 11 .. 00 .... 0 1111 . . 0 .... @2misc
|
|
|
|
VCGT0 1111 001 11 . 11 .. 01 .... 0 0000 . . 0 .... @2misc
|
|
VCGE0 1111 001 11 . 11 .. 01 .... 0 0001 . . 0 .... @2misc
|
|
VCEQ0 1111 001 11 . 11 .. 01 .... 0 0010 . . 0 .... @2misc
|
|
VCLE0 1111 001 11 . 11 .. 01 .... 0 0011 . . 0 .... @2misc
|
|
VCLT0 1111 001 11 . 11 .. 01 .... 0 0100 . . 0 .... @2misc
|
|
|
|
SHA1H 1111 001 11 . 11 .. 01 .... 0 0101 1 . 0 .... @2misc_q1
|
|
|
|
VABS 1111 001 11 . 11 .. 01 .... 0 0110 . . 0 .... @2misc
|
|
VNEG 1111 001 11 . 11 .. 01 .... 0 0111 . . 0 .... @2misc
|
|
|
|
VCGT0_F 1111 001 11 . 11 .. 01 .... 0 1000 . . 0 .... @2misc
|
|
VCGE0_F 1111 001 11 . 11 .. 01 .... 0 1001 . . 0 .... @2misc
|
|
VCEQ0_F 1111 001 11 . 11 .. 01 .... 0 1010 . . 0 .... @2misc
|
|
VCLE0_F 1111 001 11 . 11 .. 01 .... 0 1011 . . 0 .... @2misc
|
|
VCLT0_F 1111 001 11 . 11 .. 01 .... 0 1100 . . 0 .... @2misc
|
|
|
|
VABS_F 1111 001 11 . 11 .. 01 .... 0 1110 . . 0 .... @2misc
|
|
VNEG_F 1111 001 11 . 11 .. 01 .... 0 1111 . . 0 .... @2misc
|
|
|
|
VSWP 1111 001 11 . 11 .. 10 .... 0 0000 . . 0 .... @2misc
|
|
VTRN 1111 001 11 . 11 .. 10 .... 0 0001 . . 0 .... @2misc
|
|
VUZP 1111 001 11 . 11 .. 10 .... 0 0010 . . 0 .... @2misc
|
|
VZIP 1111 001 11 . 11 .. 10 .... 0 0011 . . 0 .... @2misc
|
|
|
|
VMOVN 1111 001 11 . 11 .. 10 .... 0 0100 0 . 0 .... @2misc_q0
|
|
# VQMOVUN: unsigned result (source is always signed)
|
|
VQMOVUN 1111 001 11 . 11 .. 10 .... 0 0100 1 . 0 .... @2misc_q0
|
|
# VQMOVN: signed result, source may be signed (_S) or unsigned (_U)
|
|
VQMOVN_S 1111 001 11 . 11 .. 10 .... 0 0101 0 . 0 .... @2misc_q0
|
|
VQMOVN_U 1111 001 11 . 11 .. 10 .... 0 0101 1 . 0 .... @2misc_q0
|
|
|
|
VSHLL 1111 001 11 . 11 .. 10 .... 0 0110 0 . 0 .... @2misc_q0
|
|
|
|
SHA1SU1 1111 001 11 . 11 .. 10 .... 0 0111 0 . 0 .... @2misc_q1
|
|
SHA256SU0 1111 001 11 . 11 .. 10 .... 0 0111 1 . 0 .... @2misc_q1
|
|
|
|
VRINTN 1111 001 11 . 11 .. 10 .... 0 1000 . . 0 .... @2misc
|
|
VRINTX 1111 001 11 . 11 .. 10 .... 0 1001 . . 0 .... @2misc
|
|
VRINTA 1111 001 11 . 11 .. 10 .... 0 1010 . . 0 .... @2misc
|
|
VRINTZ 1111 001 11 . 11 .. 10 .... 0 1011 . . 0 .... @2misc
|
|
|
|
VCVT_F16_F32 1111 001 11 . 11 .. 10 .... 0 1100 0 . 0 .... @2misc_q0
|
|
VCVT_B16_F32 1111 001 11 . 11 .. 10 .... 0 1100 1 . 0 .... @2misc_q0
|
|
|
|
VRINTM 1111 001 11 . 11 .. 10 .... 0 1101 . . 0 .... @2misc
|
|
|
|
VCVT_F32_F16 1111 001 11 . 11 .. 10 .... 0 1110 0 . 0 .... @2misc_q0
|
|
|
|
VRINTP 1111 001 11 . 11 .. 10 .... 0 1111 . . 0 .... @2misc
|
|
|
|
VCVTAS 1111 001 11 . 11 .. 11 .... 0 0000 . . 0 .... @2misc
|
|
VCVTAU 1111 001 11 . 11 .. 11 .... 0 0001 . . 0 .... @2misc
|
|
VCVTNS 1111 001 11 . 11 .. 11 .... 0 0010 . . 0 .... @2misc
|
|
VCVTNU 1111 001 11 . 11 .. 11 .... 0 0011 . . 0 .... @2misc
|
|
VCVTPS 1111 001 11 . 11 .. 11 .... 0 0100 . . 0 .... @2misc
|
|
VCVTPU 1111 001 11 . 11 .. 11 .... 0 0101 . . 0 .... @2misc
|
|
VCVTMS 1111 001 11 . 11 .. 11 .... 0 0110 . . 0 .... @2misc
|
|
VCVTMU 1111 001 11 . 11 .. 11 .... 0 0111 . . 0 .... @2misc
|
|
|
|
VRECPE 1111 001 11 . 11 .. 11 .... 0 1000 . . 0 .... @2misc
|
|
VRSQRTE 1111 001 11 . 11 .. 11 .... 0 1001 . . 0 .... @2misc
|
|
VRECPE_F 1111 001 11 . 11 .. 11 .... 0 1010 . . 0 .... @2misc
|
|
VRSQRTE_F 1111 001 11 . 11 .. 11 .... 0 1011 . . 0 .... @2misc
|
|
VCVT_FS 1111 001 11 . 11 .. 11 .... 0 1100 . . 0 .... @2misc
|
|
VCVT_FU 1111 001 11 . 11 .. 11 .... 0 1101 . . 0 .... @2misc
|
|
VCVT_SF 1111 001 11 . 11 .. 11 .... 0 1110 . . 0 .... @2misc
|
|
VCVT_UF 1111 001 11 . 11 .. 11 .... 0 1111 . . 0 .... @2misc
|
|
]
|
|
|
|
# Subgroup for size != 0b11
|
|
[
|
|
##################################################################
|
|
# 3-reg-different-length grouping:
|
|
# 1111 001 U 1 D sz!=11 Vn:4 Vd:4 opc:4 N 0 M 0 Vm:4
|
|
##################################################################
|
|
|
|
&3diff vm vn vd size
|
|
|
|
@3diff .... ... . . . size:2 .... .... .... . . . . .... \
|
|
&3diff vm=%vm_dp vn=%vn_dp vd=%vd_dp
|
|
|
|
VADDL_S_3d 1111 001 0 1 . .. .... .... 0000 . 0 . 0 .... @3diff
|
|
VADDL_U_3d 1111 001 1 1 . .. .... .... 0000 . 0 . 0 .... @3diff
|
|
|
|
VADDW_S_3d 1111 001 0 1 . .. .... .... 0001 . 0 . 0 .... @3diff
|
|
VADDW_U_3d 1111 001 1 1 . .. .... .... 0001 . 0 . 0 .... @3diff
|
|
|
|
VSUBL_S_3d 1111 001 0 1 . .. .... .... 0010 . 0 . 0 .... @3diff
|
|
VSUBL_U_3d 1111 001 1 1 . .. .... .... 0010 . 0 . 0 .... @3diff
|
|
|
|
VSUBW_S_3d 1111 001 0 1 . .. .... .... 0011 . 0 . 0 .... @3diff
|
|
VSUBW_U_3d 1111 001 1 1 . .. .... .... 0011 . 0 . 0 .... @3diff
|
|
|
|
VADDHN_3d 1111 001 0 1 . .. .... .... 0100 . 0 . 0 .... @3diff
|
|
VRADDHN_3d 1111 001 1 1 . .. .... .... 0100 . 0 . 0 .... @3diff
|
|
|
|
VABAL_S_3d 1111 001 0 1 . .. .... .... 0101 . 0 . 0 .... @3diff
|
|
VABAL_U_3d 1111 001 1 1 . .. .... .... 0101 . 0 . 0 .... @3diff
|
|
|
|
VSUBHN_3d 1111 001 0 1 . .. .... .... 0110 . 0 . 0 .... @3diff
|
|
VRSUBHN_3d 1111 001 1 1 . .. .... .... 0110 . 0 . 0 .... @3diff
|
|
|
|
VABDL_S_3d 1111 001 0 1 . .. .... .... 0111 . 0 . 0 .... @3diff
|
|
VABDL_U_3d 1111 001 1 1 . .. .... .... 0111 . 0 . 0 .... @3diff
|
|
|
|
VMLAL_S_3d 1111 001 0 1 . .. .... .... 1000 . 0 . 0 .... @3diff
|
|
VMLAL_U_3d 1111 001 1 1 . .. .... .... 1000 . 0 . 0 .... @3diff
|
|
|
|
VQDMLAL_3d 1111 001 0 1 . .. .... .... 1001 . 0 . 0 .... @3diff
|
|
|
|
VMLSL_S_3d 1111 001 0 1 . .. .... .... 1010 . 0 . 0 .... @3diff
|
|
VMLSL_U_3d 1111 001 1 1 . .. .... .... 1010 . 0 . 0 .... @3diff
|
|
|
|
VQDMLSL_3d 1111 001 0 1 . .. .... .... 1011 . 0 . 0 .... @3diff
|
|
|
|
VMULL_S_3d 1111 001 0 1 . .. .... .... 1100 . 0 . 0 .... @3diff
|
|
VMULL_U_3d 1111 001 1 1 . .. .... .... 1100 . 0 . 0 .... @3diff
|
|
|
|
VQDMULL_3d 1111 001 0 1 . .. .... .... 1101 . 0 . 0 .... @3diff
|
|
|
|
VMULL_P_3d 1111 001 0 1 . .. .... .... 1110 . 0 . 0 .... @3diff
|
|
|
|
##################################################################
|
|
# 2-regs-plus-scalar grouping:
|
|
# 1111 001 Q 1 D sz!=11 Vn:4 Vd:4 opc:4 N 1 M 0 Vm:4
|
|
##################################################################
|
|
&2scalar vm vn vd size q
|
|
|
|
@2scalar .... ... q:1 . . size:2 .... .... .... . . . . .... \
|
|
&2scalar vm=%vm_dp vn=%vn_dp vd=%vd_dp
|
|
# For the 'long' ops the Q bit is part of insn decode
|
|
@2scalar_q0 .... ... . . . size:2 .... .... .... . . . . .... \
|
|
&2scalar vm=%vm_dp vn=%vn_dp vd=%vd_dp q=0
|
|
|
|
VMLA_2sc 1111 001 . 1 . .. .... .... 0000 . 1 . 0 .... @2scalar
|
|
VMLA_F_2sc 1111 001 . 1 . .. .... .... 0001 . 1 . 0 .... @2scalar
|
|
|
|
VMLAL_S_2sc 1111 001 0 1 . .. .... .... 0010 . 1 . 0 .... @2scalar_q0
|
|
VMLAL_U_2sc 1111 001 1 1 . .. .... .... 0010 . 1 . 0 .... @2scalar_q0
|
|
|
|
VQDMLAL_2sc 1111 001 0 1 . .. .... .... 0011 . 1 . 0 .... @2scalar_q0
|
|
|
|
VMLS_2sc 1111 001 . 1 . .. .... .... 0100 . 1 . 0 .... @2scalar
|
|
VMLS_F_2sc 1111 001 . 1 . .. .... .... 0101 . 1 . 0 .... @2scalar
|
|
|
|
VMLSL_S_2sc 1111 001 0 1 . .. .... .... 0110 . 1 . 0 .... @2scalar_q0
|
|
VMLSL_U_2sc 1111 001 1 1 . .. .... .... 0110 . 1 . 0 .... @2scalar_q0
|
|
|
|
VQDMLSL_2sc 1111 001 0 1 . .. .... .... 0111 . 1 . 0 .... @2scalar_q0
|
|
|
|
VMUL_2sc 1111 001 . 1 . .. .... .... 1000 . 1 . 0 .... @2scalar
|
|
VMUL_F_2sc 1111 001 . 1 . .. .... .... 1001 . 1 . 0 .... @2scalar
|
|
|
|
VMULL_S_2sc 1111 001 0 1 . .. .... .... 1010 . 1 . 0 .... @2scalar_q0
|
|
VMULL_U_2sc 1111 001 1 1 . .. .... .... 1010 . 1 . 0 .... @2scalar_q0
|
|
|
|
VQDMULL_2sc 1111 001 0 1 . .. .... .... 1011 . 1 . 0 .... @2scalar_q0
|
|
|
|
VQDMULH_2sc 1111 001 . 1 . .. .... .... 1100 . 1 . 0 .... @2scalar
|
|
VQRDMULH_2sc 1111 001 . 1 . .. .... .... 1101 . 1 . 0 .... @2scalar
|
|
|
|
VQRDMLAH_2sc 1111 001 . 1 . .. .... .... 1110 . 1 . 0 .... @2scalar
|
|
VQRDMLSH_2sc 1111 001 . 1 . .. .... .... 1111 . 1 . 0 .... @2scalar
|
|
]
|
|
}
|