| # AArch32 Neon data-processing instruction descriptions |
| # |
| # Copyright (c) 2020 Linaro, Ltd |
| # |
| # This library is free software; you can redistribute it and/or |
| # modify it under the terms of the GNU Lesser General Public |
| # License as published by the Free Software Foundation; either |
| # version 2.1 of the License, or (at your option) any later version. |
| # |
| # This library is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| # Lesser General Public License for more details. |
| # |
| # You should have received a copy of the GNU Lesser General Public |
| # License along with this library; if not, see <http://www.gnu.org/licenses/>. |
| |
| # |
| # This file is processed by scripts/decodetree.py |
| # |
| # VFP/Neon register fields; same as vfp.decode |
| %vm_dp 5:1 0:4 |
| %vn_dp 7:1 16:4 |
| %vd_dp 22:1 12:4 |
| |
| # Encodings for Neon data processing instructions where the T32 encoding |
| # is a simple transformation of the A32 encoding. |
| # More specifically, this file covers instructions where the A32 encoding is |
| # 0b1111_001p_qqqq_qqqq_qqqq_qqqq_qqqq_qqqq |
| # and the T32 encoding is |
| # 0b111p_1111_qqqq_qqqq_qqqq_qqqq_qqqq_qqqq |
| # This file works on the A32 encoding only; calling code for T32 has to |
| # transform the insn into the A32 version first. |
| |
| ###################################################################### |
| # 3-reg-same grouping: |
| # 1111 001 U 0 D sz:2 Vn:4 Vd:4 opc:4 N Q M op Vm:4 |
| ###################################################################### |
| |
| &3same vm vn vd q size |
| |
| @3same .... ... . . . size:2 .... .... .... . q:1 . . .... \ |
| &3same vm=%vm_dp vn=%vn_dp vd=%vd_dp |
| |
| @3same_q0 .... ... . . . size:2 .... .... .... . 0 . . .... \ |
| &3same vm=%vm_dp vn=%vn_dp vd=%vd_dp q=0 |
| |
| # For FP insns the high bit of 'size' is used as part of opcode decode, |
| # and the 'size' bit is 0 for 32-bit float and 1 for 16-bit float. |
| # This converts this encoding to the same MO_8/16/32/64 values that the |
| # integer neon insns use. |
| %3same_fp_size 20:1 !function=neon_3same_fp_size |
| |
| @3same_fp .... ... . . . . . .... .... .... . q:1 . . .... \ |
| &3same vm=%vm_dp vn=%vn_dp vd=%vd_dp size=%3same_fp_size |
| @3same_fp_q0 .... ... . . . . . .... .... .... . 0 . . .... \ |
| &3same vm=%vm_dp vn=%vn_dp vd=%vd_dp q=0 size=%3same_fp_size |
| |
| VHADD_S_3s 1111 001 0 0 . .. .... .... 0000 . . . 0 .... @3same |
| VHADD_U_3s 1111 001 1 0 . .. .... .... 0000 . . . 0 .... @3same |
| VQADD_S_3s 1111 001 0 0 . .. .... .... 0000 . . . 1 .... @3same |
| VQADD_U_3s 1111 001 1 0 . .. .... .... 0000 . . . 1 .... @3same |
| |
| VRHADD_S_3s 1111 001 0 0 . .. .... .... 0001 . . . 0 .... @3same |
| VRHADD_U_3s 1111 001 1 0 . .. .... .... 0001 . . . 0 .... @3same |
| |
| @3same_logic .... ... . . . .. .... .... .... . q:1 .. .... \ |
| &3same vm=%vm_dp vn=%vn_dp vd=%vd_dp size=0 |
| |
| VAND_3s 1111 001 0 0 . 00 .... .... 0001 ... 1 .... @3same_logic |
| VBIC_3s 1111 001 0 0 . 01 .... .... 0001 ... 1 .... @3same_logic |
| VORR_3s 1111 001 0 0 . 10 .... .... 0001 ... 1 .... @3same_logic |
| VORN_3s 1111 001 0 0 . 11 .... .... 0001 ... 1 .... @3same_logic |
| VEOR_3s 1111 001 1 0 . 00 .... .... 0001 ... 1 .... @3same_logic |
| VBSL_3s 1111 001 1 0 . 01 .... .... 0001 ... 1 .... @3same_logic |
| VBIT_3s 1111 001 1 0 . 10 .... .... 0001 ... 1 .... @3same_logic |
| VBIF_3s 1111 001 1 0 . 11 .... .... 0001 ... 1 .... @3same_logic |
| |
| VHSUB_S_3s 1111 001 0 0 . .. .... .... 0010 . . . 0 .... @3same |
| VHSUB_U_3s 1111 001 1 0 . .. .... .... 0010 . . . 0 .... @3same |
| |
| VQSUB_S_3s 1111 001 0 0 . .. .... .... 0010 . . . 1 .... @3same |
| VQSUB_U_3s 1111 001 1 0 . .. .... .... 0010 . . . 1 .... @3same |
| |
| VCGT_S_3s 1111 001 0 0 . .. .... .... 0011 . . . 0 .... @3same |
| VCGT_U_3s 1111 001 1 0 . .. .... .... 0011 . . . 0 .... @3same |
| VCGE_S_3s 1111 001 0 0 . .. .... .... 0011 . . . 1 .... @3same |
| VCGE_U_3s 1111 001 1 0 . .. .... .... 0011 . . . 1 .... @3same |
| |
| # The _rev suffix indicates that Vn and Vm are reversed. This is |
| # the case for shifts. In the Arm ARM these insns are documented |
| # with the Vm and Vn fields in their usual places, but in the |
| # assembly the operands are listed "backwards", ie in the order |
| # Dd, Dm, Dn where other insns use Dd, Dn, Dm. For QEMU we choose |
| # to consider Vm and Vn as being in different fields in the insn, |
| # which allows us to avoid special-casing shifts in the trans_ |
| # function code. We would otherwise need to manually swap the operands |
| # over to call Neon helper functions that are shared with AArch64, |
| # which does not have this odd reversed-operand situation. |
| @3same_rev .... ... . . . size:2 .... .... .... . q:1 . . .... \ |
| &3same vn=%vm_dp vm=%vn_dp vd=%vd_dp |
| |
| VSHL_S_3s 1111 001 0 0 . .. .... .... 0100 . . . 0 .... @3same_rev |
| VSHL_U_3s 1111 001 1 0 . .. .... .... 0100 . . . 0 .... @3same_rev |
| VQSHL_S_3s 1111 001 0 0 . .. .... .... 0100 . . . 1 .... @3same_rev |
| VQSHL_U_3s 1111 001 1 0 . .. .... .... 0100 . . . 1 .... @3same_rev |
| VRSHL_S_3s 1111 001 0 0 . .. .... .... 0101 . . . 0 .... @3same_rev |
| VRSHL_U_3s 1111 001 1 0 . .. .... .... 0101 . . . 0 .... @3same_rev |
| VQRSHL_S_3s 1111 001 0 0 . .. .... .... 0101 . . . 1 .... @3same_rev |
| VQRSHL_U_3s 1111 001 1 0 . .. .... .... 0101 . . . 1 .... @3same_rev |
| |
| VMAX_S_3s 1111 001 0 0 . .. .... .... 0110 . . . 0 .... @3same |
| VMAX_U_3s 1111 001 1 0 . .. .... .... 0110 . . . 0 .... @3same |
| VMIN_S_3s 1111 001 0 0 . .. .... .... 0110 . . . 1 .... @3same |
| VMIN_U_3s 1111 001 1 0 . .. .... .... 0110 . . . 1 .... @3same |
| |
| VABD_S_3s 1111 001 0 0 . .. .... .... 0111 . . . 0 .... @3same |
| VABD_U_3s 1111 001 1 0 . .. .... .... 0111 . . . 0 .... @3same |
| |
| VABA_S_3s 1111 001 0 0 . .. .... .... 0111 . . . 1 .... @3same |
| VABA_U_3s 1111 001 1 0 . .. .... .... 0111 . . . 1 .... @3same |
| |
| VADD_3s 1111 001 0 0 . .. .... .... 1000 . . . 0 .... @3same |
| VSUB_3s 1111 001 1 0 . .. .... .... 1000 . . . 0 .... @3same |
| |
| VTST_3s 1111 001 0 0 . .. .... .... 1000 . . . 1 .... @3same |
| VCEQ_3s 1111 001 1 0 . .. .... .... 1000 . . . 1 .... @3same |
| |
| VMLA_3s 1111 001 0 0 . .. .... .... 1001 . . . 0 .... @3same |
| VMLS_3s 1111 001 1 0 . .. .... .... 1001 . . . 0 .... @3same |
| |
| VMUL_3s 1111 001 0 0 . .. .... .... 1001 . . . 1 .... @3same |
| VMUL_p_3s 1111 001 1 0 . .. .... .... 1001 . . . 1 .... @3same |
| |
| VPMAX_S_3s 1111 001 0 0 . .. .... .... 1010 . . . 0 .... @3same_q0 |
| VPMAX_U_3s 1111 001 1 0 . .. .... .... 1010 . . . 0 .... @3same_q0 |
| |
| VPMIN_S_3s 1111 001 0 0 . .. .... .... 1010 . . . 1 .... @3same_q0 |
| VPMIN_U_3s 1111 001 1 0 . .. .... .... 1010 . . . 1 .... @3same_q0 |
| |
| VQDMULH_3s 1111 001 0 0 . .. .... .... 1011 . . . 0 .... @3same |
| VQRDMULH_3s 1111 001 1 0 . .. .... .... 1011 . . . 0 .... @3same |
| |
| VPADD_3s 1111 001 0 0 . .. .... .... 1011 . . . 1 .... @3same_q0 |
| |
| VQRDMLAH_3s 1111 001 1 0 . .. .... .... 1011 ... 1 .... @3same |
| |
| @3same_crypto .... .... .... .... .... .... .... .... \ |
| &3same vm=%vm_dp vn=%vn_dp vd=%vd_dp size=0 q=1 |
| |
| SHA1C_3s 1111 001 0 0 . 00 .... .... 1100 . 1 . 0 .... @3same_crypto |
| SHA1P_3s 1111 001 0 0 . 01 .... .... 1100 . 1 . 0 .... @3same_crypto |
| SHA1M_3s 1111 001 0 0 . 10 .... .... 1100 . 1 . 0 .... @3same_crypto |
| SHA1SU0_3s 1111 001 0 0 . 11 .... .... 1100 . 1 . 0 .... @3same_crypto |
| SHA256H_3s 1111 001 1 0 . 00 .... .... 1100 . 1 . 0 .... @3same_crypto |
| SHA256H2_3s 1111 001 1 0 . 01 .... .... 1100 . 1 . 0 .... @3same_crypto |
| SHA256SU1_3s 1111 001 1 0 . 10 .... .... 1100 . 1 . 0 .... @3same_crypto |
| |
| VFMA_fp_3s 1111 001 0 0 . 0 . .... .... 1100 ... 1 .... @3same_fp |
| VFMS_fp_3s 1111 001 0 0 . 1 . .... .... 1100 ... 1 .... @3same_fp |
| |
| VQRDMLSH_3s 1111 001 1 0 . .. .... .... 1100 ... 1 .... @3same |
| |
| VADD_fp_3s 1111 001 0 0 . 0 . .... .... 1101 ... 0 .... @3same_fp |
| VSUB_fp_3s 1111 001 0 0 . 1 . .... .... 1101 ... 0 .... @3same_fp |
| VPADD_fp_3s 1111 001 1 0 . 0 . .... .... 1101 ... 0 .... @3same_fp_q0 |
| VABD_fp_3s 1111 001 1 0 . 1 . .... .... 1101 ... 0 .... @3same_fp |
| VMLA_fp_3s 1111 001 0 0 . 0 . .... .... 1101 ... 1 .... @3same_fp |
| VMLS_fp_3s 1111 001 0 0 . 1 . .... .... 1101 ... 1 .... @3same_fp |
| VMUL_fp_3s 1111 001 1 0 . 0 . .... .... 1101 ... 1 .... @3same_fp |
| VCEQ_fp_3s 1111 001 0 0 . 0 . .... .... 1110 ... 0 .... @3same_fp |
| VCGE_fp_3s 1111 001 1 0 . 0 . .... .... 1110 ... 0 .... @3same_fp |
| VACGE_fp_3s 1111 001 1 0 . 0 . .... .... 1110 ... 1 .... @3same_fp |
| VCGT_fp_3s 1111 001 1 0 . 1 . .... .... 1110 ... 0 .... @3same_fp |
| VACGT_fp_3s 1111 001 1 0 . 1 . .... .... 1110 ... 1 .... @3same_fp |
| VMAX_fp_3s 1111 001 0 0 . 0 . .... .... 1111 ... 0 .... @3same_fp |
| VMIN_fp_3s 1111 001 0 0 . 1 . .... .... 1111 ... 0 .... @3same_fp |
| VPMAX_fp_3s 1111 001 1 0 . 0 . .... .... 1111 ... 0 .... @3same_fp_q0 |
| VPMIN_fp_3s 1111 001 1 0 . 1 . .... .... 1111 ... 0 .... @3same_fp_q0 |
| VRECPS_fp_3s 1111 001 0 0 . 0 . .... .... 1111 ... 1 .... @3same_fp |
| VRSQRTS_fp_3s 1111 001 0 0 . 1 . .... .... 1111 ... 1 .... @3same_fp |
| VMAXNM_fp_3s 1111 001 1 0 . 0 . .... .... 1111 ... 1 .... @3same_fp |
| VMINNM_fp_3s 1111 001 1 0 . 1 . .... .... 1111 ... 1 .... @3same_fp |
| |
| ###################################################################### |
| # 2-reg-and-shift grouping: |
| # 1111 001 U 1 D immH:3 immL:3 Vd:4 opc:4 L Q M 1 Vm:4 |
| ###################################################################### |
| &2reg_shift vm vd q shift size |
| |
| # Right shifts are encoded as N - shift, where N is the element size in bits. |
| %neon_rshift_i6 16:6 !function=rsub_64 |
| %neon_rshift_i5 16:5 !function=rsub_32 |
| %neon_rshift_i4 16:4 !function=rsub_16 |
| %neon_rshift_i3 16:3 !function=rsub_8 |
| |
| @2reg_shr_d .... ... . . . ...... .... .... 1 q:1 . . .... \ |
| &2reg_shift vm=%vm_dp vd=%vd_dp size=3 shift=%neon_rshift_i6 |
| @2reg_shr_s .... ... . . . 1 ..... .... .... 0 q:1 . . .... \ |
| &2reg_shift vm=%vm_dp vd=%vd_dp size=2 shift=%neon_rshift_i5 |
| @2reg_shr_h .... ... . . . 01 .... .... .... 0 q:1 . . .... \ |
| &2reg_shift vm=%vm_dp vd=%vd_dp size=1 shift=%neon_rshift_i4 |
| @2reg_shr_b .... ... . . . 001 ... .... .... 0 q:1 . . .... \ |
| &2reg_shift vm=%vm_dp vd=%vd_dp size=0 shift=%neon_rshift_i3 |
| |
| @2reg_shl_d .... ... . . . shift:6 .... .... 1 q:1 . . .... \ |
| &2reg_shift vm=%vm_dp vd=%vd_dp size=3 |
| @2reg_shl_s .... ... . . . 1 shift:5 .... .... 0 q:1 . . .... \ |
| &2reg_shift vm=%vm_dp vd=%vd_dp size=2 |
| @2reg_shl_h .... ... . . . 01 shift:4 .... .... 0 q:1 . . .... \ |
| &2reg_shift vm=%vm_dp vd=%vd_dp size=1 |
| @2reg_shl_b .... ... . . . 001 shift:3 .... .... 0 q:1 . . .... \ |
| &2reg_shift vm=%vm_dp vd=%vd_dp size=0 |
| |
| # Narrowing right shifts: here the Q bit is part of the opcode decode |
| @2reg_shrn_d .... ... . . . 1 ..... .... .... 0 . . . .... \ |
| &2reg_shift vm=%vm_dp vd=%vd_dp size=3 q=0 \ |
| shift=%neon_rshift_i5 |
| @2reg_shrn_s .... ... . . . 01 .... .... .... 0 . . . .... \ |
| &2reg_shift vm=%vm_dp vd=%vd_dp size=2 q=0 \ |
| shift=%neon_rshift_i4 |
| @2reg_shrn_h .... ... . . . 001 ... .... .... 0 . . . .... \ |
| &2reg_shift vm=%vm_dp vd=%vd_dp size=1 q=0 \ |
| shift=%neon_rshift_i3 |
| |
| # Long left shifts: again Q is part of opcode decode |
| @2reg_shll_s .... ... . . . 1 shift:5 .... .... 0 . . . .... \ |
| &2reg_shift vm=%vm_dp vd=%vd_dp size=2 q=0 |
| @2reg_shll_h .... ... . . . 01 shift:4 .... .... 0 . . . .... \ |
| &2reg_shift vm=%vm_dp vd=%vd_dp size=1 q=0 |
| @2reg_shll_b .... ... . . . 001 shift:3 .... .... 0 . . . .... \ |
| &2reg_shift vm=%vm_dp vd=%vd_dp size=0 q=0 |
| |
| @2reg_vcvt .... ... . . . 1 ..... .... .... . q:1 . . .... \ |
| &2reg_shift vm=%vm_dp vd=%vd_dp size=2 shift=%neon_rshift_i5 |
| @2reg_vcvt_f16 .... ... . . . 11 .... .... .... . q:1 . . .... \ |
| &2reg_shift vm=%vm_dp vd=%vd_dp size=1 shift=%neon_rshift_i4 |
| |
| VSHR_S_2sh 1111 001 0 1 . ...... .... 0000 . . . 1 .... @2reg_shr_d |
| VSHR_S_2sh 1111 001 0 1 . ...... .... 0000 . . . 1 .... @2reg_shr_s |
| VSHR_S_2sh 1111 001 0 1 . ...... .... 0000 . . . 1 .... @2reg_shr_h |
| VSHR_S_2sh 1111 001 0 1 . ...... .... 0000 . . . 1 .... @2reg_shr_b |
| |
| VSHR_U_2sh 1111 001 1 1 . ...... .... 0000 . . . 1 .... @2reg_shr_d |
| VSHR_U_2sh 1111 001 1 1 . ...... .... 0000 . . . 1 .... @2reg_shr_s |
| VSHR_U_2sh 1111 001 1 1 . ...... .... 0000 . . . 1 .... @2reg_shr_h |
| VSHR_U_2sh 1111 001 1 1 . ...... .... 0000 . . . 1 .... @2reg_shr_b |
| |
| VSRA_S_2sh 1111 001 0 1 . ...... .... 0001 . . . 1 .... @2reg_shr_d |
| VSRA_S_2sh 1111 001 0 1 . ...... .... 0001 . . . 1 .... @2reg_shr_s |
| VSRA_S_2sh 1111 001 0 1 . ...... .... 0001 . . . 1 .... @2reg_shr_h |
| VSRA_S_2sh 1111 001 0 1 . ...... .... 0001 . . . 1 .... @2reg_shr_b |
| |
| VSRA_U_2sh 1111 001 1 1 . ...... .... 0001 . . . 1 .... @2reg_shr_d |
| VSRA_U_2sh 1111 001 1 1 . ...... .... 0001 . . . 1 .... @2reg_shr_s |
| VSRA_U_2sh 1111 001 1 1 . ...... .... 0001 . . . 1 .... @2reg_shr_h |
| VSRA_U_2sh 1111 001 1 1 . ...... .... 0001 . . . 1 .... @2reg_shr_b |
| |
| VRSHR_S_2sh 1111 001 0 1 . ...... .... 0010 . . . 1 .... @2reg_shr_d |
| VRSHR_S_2sh 1111 001 0 1 . ...... .... 0010 . . . 1 .... @2reg_shr_s |
| VRSHR_S_2sh 1111 001 0 1 . ...... .... 0010 . . . 1 .... @2reg_shr_h |
| VRSHR_S_2sh 1111 001 0 1 . ...... .... 0010 . . . 1 .... @2reg_shr_b |
| |
| VRSHR_U_2sh 1111 001 1 1 . ...... .... 0010 . . . 1 .... @2reg_shr_d |
| VRSHR_U_2sh 1111 001 1 1 . ...... .... 0010 . . . 1 .... @2reg_shr_s |
| VRSHR_U_2sh 1111 001 1 1 . ...... .... 0010 . . . 1 .... @2reg_shr_h |
| VRSHR_U_2sh 1111 001 1 1 . ...... .... 0010 . . . 1 .... @2reg_shr_b |
| |
| VRSRA_S_2sh 1111 001 0 1 . ...... .... 0011 . . . 1 .... @2reg_shr_d |
| VRSRA_S_2sh 1111 001 0 1 . ...... .... 0011 . . . 1 .... @2reg_shr_s |
| VRSRA_S_2sh 1111 001 0 1 . ...... .... 0011 . . . 1 .... @2reg_shr_h |
| VRSRA_S_2sh 1111 001 0 1 . ...... .... 0011 . . . 1 .... @2reg_shr_b |
| |
| VRSRA_U_2sh 1111 001 1 1 . ...... .... 0011 . . . 1 .... @2reg_shr_d |
| VRSRA_U_2sh 1111 001 1 1 . ...... .... 0011 . . . 1 .... @2reg_shr_s |
| VRSRA_U_2sh 1111 001 1 1 . ...... .... 0011 . . . 1 .... @2reg_shr_h |
| VRSRA_U_2sh 1111 001 1 1 . ...... .... 0011 . . . 1 .... @2reg_shr_b |
| |
| VSRI_2sh 1111 001 1 1 . ...... .... 0100 . . . 1 .... @2reg_shr_d |
| VSRI_2sh 1111 001 1 1 . ...... .... 0100 . . . 1 .... @2reg_shr_s |
| VSRI_2sh 1111 001 1 1 . ...... .... 0100 . . . 1 .... @2reg_shr_h |
| VSRI_2sh 1111 001 1 1 . ...... .... 0100 . . . 1 .... @2reg_shr_b |
| |
| VSHL_2sh 1111 001 0 1 . ...... .... 0101 . . . 1 .... @2reg_shl_d |
| 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_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_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_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 |
| ] |
| } |
