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# AArch64 SVE instruction descriptions
#
# Copyright (c) 2017 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 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
#
###########################################################################
# Named fields. These are primarily for disjoint fields.
%imm4_16_p1 16:4 !function=plus1
%imm6_22_5 22:1 5:5
%imm7_22_16 22:2 16:5
%imm8_16_10 16:5 10:3
%imm9_16_10 16:s6 10:3
# A combination of tsz:imm3 -- extract esize.
%tszimm_esz 22:2 5:5 !function=tszimm_esz
# A combination of tsz:imm3 -- extract (2 * esize) - (tsz:imm3)
%tszimm_shr 22:2 5:5 !function=tszimm_shr
# A combination of tsz:imm3 -- extract (tsz:imm3) - esize
%tszimm_shl 22:2 5:5 !function=tszimm_shl
# Similarly for the tszh/tszl pair at 22/16 for zzi
%tszimm16_esz 22:2 16:5 !function=tszimm_esz
%tszimm16_shr 22:2 16:5 !function=tszimm_shr
%tszimm16_shl 22:2 16:5 !function=tszimm_shl
# Signed 8-bit immediate, optionally shifted left by 8.
%sh8_i8s 5:9 !function=expand_imm_sh8s
# Either a copy of rd (at bit 0), or a different source
# as propagated via the MOVPRFX instruction.
%reg_movprfx 0:5
###########################################################################
# Named attribute sets. These are used to make nice(er) names
# when creating helpers common to those for the individual
# instruction patterns.
&rr_esz rd rn esz
&rri rd rn imm
&rr_dbm rd rn dbm
&rrri rd rn rm imm
&rri_esz rd rn imm esz
&rrr_esz rd rn rm esz
&rpr_esz rd pg rn esz
&rprr_s rd pg rn rm s
&rprr_esz rd pg rn rm esz
&rprrr_esz rd pg rn rm ra esz
&rpri_esz rd pg rn imm esz
&ptrue rd esz pat s
&incdec_cnt rd pat esz imm d u
&incdec2_cnt rd rn pat esz imm d u
###########################################################################
# Named instruction formats. These are generally used to
# reduce the amount of duplication between instruction patterns.
# Two operand with unused vector element size
@pd_pn_e0 ........ ........ ....... rn:4 . rd:4 &rr_esz esz=0
# Two operand
@pd_pn ........ esz:2 .. .... ....... rn:4 . rd:4 &rr_esz
@rd_rn ........ esz:2 ...... ...... rn:5 rd:5 &rr_esz
# Three operand with unused vector element size
@rd_rn_rm_e0 ........ ... rm:5 ... ... rn:5 rd:5 &rrr_esz esz=0
# Three predicate operand, with governing predicate, flag setting
@pd_pg_pn_pm_s ........ . s:1 .. rm:4 .. pg:4 . rn:4 . rd:4 &rprr_s
# Three operand, vector element size
@rd_rn_rm ........ esz:2 . rm:5 ... ... rn:5 rd:5 &rrr_esz
@pd_pn_pm ........ esz:2 .. rm:4 ....... rn:4 . rd:4 &rrr_esz
@rdn_rm ........ esz:2 ...... ...... rm:5 rd:5 \
&rrr_esz rn=%reg_movprfx
# Three operand with "memory" size, aka immediate left shift
@rd_rn_msz_rm ........ ... rm:5 .... imm:2 rn:5 rd:5 &rrri
# Two register operand, with governing predicate, vector element size
@rdn_pg_rm ........ esz:2 ... ... ... pg:3 rm:5 rd:5 \
&rprr_esz rn=%reg_movprfx
@rdm_pg_rn ........ esz:2 ... ... ... pg:3 rn:5 rd:5 \
&rprr_esz rm=%reg_movprfx
# Three register operand, with governing predicate, vector element size
@rda_pg_rn_rm ........ esz:2 . rm:5 ... pg:3 rn:5 rd:5 \
&rprrr_esz ra=%reg_movprfx
@rdn_pg_ra_rm ........ esz:2 . rm:5 ... pg:3 ra:5 rd:5 \
&rprrr_esz rn=%reg_movprfx
# One register operand, with governing predicate, vector element size
@rd_pg_rn ........ esz:2 ... ... ... pg:3 rn:5 rd:5 &rpr_esz
# Two register operands with a 6-bit signed immediate.
@rd_rn_i6 ........ ... rn:5 ..... imm:s6 rd:5 &rri
# Two register operand, one immediate operand, with predicate,
# element size encoded as TSZHL. User must fill in imm.
@rdn_pg_tszimm ........ .. ... ... ... pg:3 ..... rd:5 \
&rpri_esz rn=%reg_movprfx esz=%tszimm_esz
# Similarly without predicate.
@rd_rn_tszimm ........ .. ... ... ...... rn:5 rd:5 \
&rri_esz esz=%tszimm16_esz
# Two register operand, one immediate operand, with 4-bit predicate.
# User must fill in imm.
@rdn_pg4 ........ esz:2 .. pg:4 ... ........ rd:5 \
&rpri_esz rn=%reg_movprfx
# Two register operand, one encoded bitmask.
@rdn_dbm ........ .. .... dbm:13 rd:5 \
&rr_dbm rn=%reg_movprfx
# Basic Load/Store with 9-bit immediate offset
@pd_rn_i9 ........ ........ ...... rn:5 . rd:4 \
&rri imm=%imm9_16_10
@rd_rn_i9 ........ ........ ...... rn:5 rd:5 \
&rri imm=%imm9_16_10
# One register, pattern, and uint4+1.
# User must fill in U and D.
@incdec_cnt ........ esz:2 .. .... ...... pat:5 rd:5 \
&incdec_cnt imm=%imm4_16_p1
@incdec2_cnt ........ esz:2 .. .... ...... pat:5 rd:5 \
&incdec2_cnt imm=%imm4_16_p1 rn=%reg_movprfx
###########################################################################
# Instruction patterns. Grouped according to the SVE encodingindex.xhtml.
### SVE Integer Arithmetic - Binary Predicated Group
# SVE bitwise logical vector operations (predicated)
ORR_zpzz 00000100 .. 011 000 000 ... ..... ..... @rdn_pg_rm
EOR_zpzz 00000100 .. 011 001 000 ... ..... ..... @rdn_pg_rm
AND_zpzz 00000100 .. 011 010 000 ... ..... ..... @rdn_pg_rm
BIC_zpzz 00000100 .. 011 011 000 ... ..... ..... @rdn_pg_rm
# SVE integer add/subtract vectors (predicated)
ADD_zpzz 00000100 .. 000 000 000 ... ..... ..... @rdn_pg_rm
SUB_zpzz 00000100 .. 000 001 000 ... ..... ..... @rdn_pg_rm
SUB_zpzz 00000100 .. 000 011 000 ... ..... ..... @rdm_pg_rn # SUBR
# SVE integer min/max/difference (predicated)
SMAX_zpzz 00000100 .. 001 000 000 ... ..... ..... @rdn_pg_rm
UMAX_zpzz 00000100 .. 001 001 000 ... ..... ..... @rdn_pg_rm
SMIN_zpzz 00000100 .. 001 010 000 ... ..... ..... @rdn_pg_rm
UMIN_zpzz 00000100 .. 001 011 000 ... ..... ..... @rdn_pg_rm
SABD_zpzz 00000100 .. 001 100 000 ... ..... ..... @rdn_pg_rm
UABD_zpzz 00000100 .. 001 101 000 ... ..... ..... @rdn_pg_rm
# SVE integer multiply/divide (predicated)
MUL_zpzz 00000100 .. 010 000 000 ... ..... ..... @rdn_pg_rm
SMULH_zpzz 00000100 .. 010 010 000 ... ..... ..... @rdn_pg_rm
UMULH_zpzz 00000100 .. 010 011 000 ... ..... ..... @rdn_pg_rm
# Note that divide requires size >= 2; below 2 is unallocated.
SDIV_zpzz 00000100 .. 010 100 000 ... ..... ..... @rdn_pg_rm
UDIV_zpzz 00000100 .. 010 101 000 ... ..... ..... @rdn_pg_rm
SDIV_zpzz 00000100 .. 010 110 000 ... ..... ..... @rdm_pg_rn # SDIVR
UDIV_zpzz 00000100 .. 010 111 000 ... ..... ..... @rdm_pg_rn # UDIVR
### SVE Integer Reduction Group
# SVE bitwise logical reduction (predicated)
ORV 00000100 .. 011 000 001 ... ..... ..... @rd_pg_rn
EORV 00000100 .. 011 001 001 ... ..... ..... @rd_pg_rn
ANDV 00000100 .. 011 010 001 ... ..... ..... @rd_pg_rn
# SVE integer add reduction (predicated)
# Note that saddv requires size != 3.
UADDV 00000100 .. 000 001 001 ... ..... ..... @rd_pg_rn
SADDV 00000100 .. 000 000 001 ... ..... ..... @rd_pg_rn
# SVE integer min/max reduction (predicated)
SMAXV 00000100 .. 001 000 001 ... ..... ..... @rd_pg_rn
UMAXV 00000100 .. 001 001 001 ... ..... ..... @rd_pg_rn
SMINV 00000100 .. 001 010 001 ... ..... ..... @rd_pg_rn
UMINV 00000100 .. 001 011 001 ... ..... ..... @rd_pg_rn
### SVE Shift by Immediate - Predicated Group
# SVE bitwise shift by immediate (predicated)
ASR_zpzi 00000100 .. 000 000 100 ... .. ... ..... \
@rdn_pg_tszimm imm=%tszimm_shr
LSR_zpzi 00000100 .. 000 001 100 ... .. ... ..... \
@rdn_pg_tszimm imm=%tszimm_shr
LSL_zpzi 00000100 .. 000 011 100 ... .. ... ..... \
@rdn_pg_tszimm imm=%tszimm_shl
ASRD 00000100 .. 000 100 100 ... .. ... ..... \
@rdn_pg_tszimm imm=%tszimm_shr
# SVE bitwise shift by vector (predicated)
ASR_zpzz 00000100 .. 010 000 100 ... ..... ..... @rdn_pg_rm
LSR_zpzz 00000100 .. 010 001 100 ... ..... ..... @rdn_pg_rm
LSL_zpzz 00000100 .. 010 011 100 ... ..... ..... @rdn_pg_rm
ASR_zpzz 00000100 .. 010 100 100 ... ..... ..... @rdm_pg_rn # ASRR
LSR_zpzz 00000100 .. 010 101 100 ... ..... ..... @rdm_pg_rn # LSRR
LSL_zpzz 00000100 .. 010 111 100 ... ..... ..... @rdm_pg_rn # LSLR
# SVE bitwise shift by wide elements (predicated)
# Note these require size != 3.
ASR_zpzw 00000100 .. 011 000 100 ... ..... ..... @rdn_pg_rm
LSR_zpzw 00000100 .. 011 001 100 ... ..... ..... @rdn_pg_rm
LSL_zpzw 00000100 .. 011 011 100 ... ..... ..... @rdn_pg_rm
### SVE Integer Arithmetic - Unary Predicated Group
# SVE unary bit operations (predicated)
# Note esz != 0 for FABS and FNEG.
CLS 00000100 .. 011 000 101 ... ..... ..... @rd_pg_rn
CLZ 00000100 .. 011 001 101 ... ..... ..... @rd_pg_rn
CNT_zpz 00000100 .. 011 010 101 ... ..... ..... @rd_pg_rn
CNOT 00000100 .. 011 011 101 ... ..... ..... @rd_pg_rn
NOT_zpz 00000100 .. 011 110 101 ... ..... ..... @rd_pg_rn
FABS 00000100 .. 011 100 101 ... ..... ..... @rd_pg_rn
FNEG 00000100 .. 011 101 101 ... ..... ..... @rd_pg_rn
# SVE integer unary operations (predicated)
# Note esz > original size for extensions.
ABS 00000100 .. 010 110 101 ... ..... ..... @rd_pg_rn
NEG 00000100 .. 010 111 101 ... ..... ..... @rd_pg_rn
SXTB 00000100 .. 010 000 101 ... ..... ..... @rd_pg_rn
UXTB 00000100 .. 010 001 101 ... ..... ..... @rd_pg_rn
SXTH 00000100 .. 010 010 101 ... ..... ..... @rd_pg_rn
UXTH 00000100 .. 010 011 101 ... ..... ..... @rd_pg_rn
SXTW 00000100 .. 010 100 101 ... ..... ..... @rd_pg_rn
UXTW 00000100 .. 010 101 101 ... ..... ..... @rd_pg_rn
### SVE Integer Multiply-Add Group
# SVE integer multiply-add writing addend (predicated)
MLA 00000100 .. 0 ..... 010 ... ..... ..... @rda_pg_rn_rm
MLS 00000100 .. 0 ..... 011 ... ..... ..... @rda_pg_rn_rm
# SVE integer multiply-add writing multiplicand (predicated)
MLA 00000100 .. 0 ..... 110 ... ..... ..... @rdn_pg_ra_rm # MAD
MLS 00000100 .. 0 ..... 111 ... ..... ..... @rdn_pg_ra_rm # MSB
### SVE Integer Arithmetic - Unpredicated Group
# SVE integer add/subtract vectors (unpredicated)
ADD_zzz 00000100 .. 1 ..... 000 000 ..... ..... @rd_rn_rm
SUB_zzz 00000100 .. 1 ..... 000 001 ..... ..... @rd_rn_rm
SQADD_zzz 00000100 .. 1 ..... 000 100 ..... ..... @rd_rn_rm
UQADD_zzz 00000100 .. 1 ..... 000 101 ..... ..... @rd_rn_rm
SQSUB_zzz 00000100 .. 1 ..... 000 110 ..... ..... @rd_rn_rm
UQSUB_zzz 00000100 .. 1 ..... 000 111 ..... ..... @rd_rn_rm
### SVE Logical - Unpredicated Group
# SVE bitwise logical operations (unpredicated)
AND_zzz 00000100 00 1 ..... 001 100 ..... ..... @rd_rn_rm_e0
ORR_zzz 00000100 01 1 ..... 001 100 ..... ..... @rd_rn_rm_e0
EOR_zzz 00000100 10 1 ..... 001 100 ..... ..... @rd_rn_rm_e0
BIC_zzz 00000100 11 1 ..... 001 100 ..... ..... @rd_rn_rm_e0
### SVE Index Generation Group
# SVE index generation (immediate start, immediate increment)
INDEX_ii 00000100 esz:2 1 imm2:s5 010000 imm1:s5 rd:5
# SVE index generation (immediate start, register increment)
INDEX_ir 00000100 esz:2 1 rm:5 010010 imm:s5 rd:5
# SVE index generation (register start, immediate increment)
INDEX_ri 00000100 esz:2 1 imm:s5 010001 rn:5 rd:5
# SVE index generation (register start, register increment)
INDEX_rr 00000100 .. 1 ..... 010011 ..... ..... @rd_rn_rm
### SVE Stack Allocation Group
# SVE stack frame adjustment
ADDVL 00000100 001 ..... 01010 ...... ..... @rd_rn_i6
ADDPL 00000100 011 ..... 01010 ...... ..... @rd_rn_i6
# SVE stack frame size
RDVL 00000100 101 11111 01010 imm:s6 rd:5
### SVE Bitwise Shift - Unpredicated Group
# SVE bitwise shift by immediate (unpredicated)
ASR_zzi 00000100 .. 1 ..... 1001 00 ..... ..... \
@rd_rn_tszimm imm=%tszimm16_shr
LSR_zzi 00000100 .. 1 ..... 1001 01 ..... ..... \
@rd_rn_tszimm imm=%tszimm16_shr
LSL_zzi 00000100 .. 1 ..... 1001 11 ..... ..... \
@rd_rn_tszimm imm=%tszimm16_shl
# SVE bitwise shift by wide elements (unpredicated)
# Note esz != 3
ASR_zzw 00000100 .. 1 ..... 1000 00 ..... ..... @rd_rn_rm
LSR_zzw 00000100 .. 1 ..... 1000 01 ..... ..... @rd_rn_rm
LSL_zzw 00000100 .. 1 ..... 1000 11 ..... ..... @rd_rn_rm
### SVE Compute Vector Address Group
# SVE vector address generation
ADR_s32 00000100 00 1 ..... 1010 .. ..... ..... @rd_rn_msz_rm
ADR_u32 00000100 01 1 ..... 1010 .. ..... ..... @rd_rn_msz_rm
ADR_p32 00000100 10 1 ..... 1010 .. ..... ..... @rd_rn_msz_rm
ADR_p64 00000100 11 1 ..... 1010 .. ..... ..... @rd_rn_msz_rm
### SVE Integer Misc - Unpredicated Group
# SVE floating-point exponential accelerator
# Note esz != 0
FEXPA 00000100 .. 1 00000 101110 ..... ..... @rd_rn
# SVE floating-point trig select coefficient
# Note esz != 0
FTSSEL 00000100 .. 1 ..... 101100 ..... ..... @rd_rn_rm
### SVE Element Count Group
# SVE element count
CNT_r 00000100 .. 10 .... 1110 0 0 ..... ..... @incdec_cnt d=0 u=1
# SVE inc/dec register by element count
INCDEC_r 00000100 .. 11 .... 1110 0 d:1 ..... ..... @incdec_cnt u=1
# SVE saturating inc/dec register by element count
SINCDEC_r_32 00000100 .. 10 .... 1111 d:1 u:1 ..... ..... @incdec_cnt
SINCDEC_r_64 00000100 .. 11 .... 1111 d:1 u:1 ..... ..... @incdec_cnt
# SVE inc/dec vector by element count
# Note this requires esz != 0.
INCDEC_v 00000100 .. 1 1 .... 1100 0 d:1 ..... ..... @incdec2_cnt u=1
# SVE saturating inc/dec vector by element count
# Note these require esz != 0.
SINCDEC_v 00000100 .. 1 0 .... 1100 d:1 u:1 ..... ..... @incdec2_cnt
### SVE Bitwise Immediate Group
# SVE bitwise logical with immediate (unpredicated)
ORR_zzi 00000101 00 0000 ............. ..... @rdn_dbm
EOR_zzi 00000101 01 0000 ............. ..... @rdn_dbm
AND_zzi 00000101 10 0000 ............. ..... @rdn_dbm
# SVE broadcast bitmask immediate
DUPM 00000101 11 0000 dbm:13 rd:5
### SVE Integer Wide Immediate - Predicated Group
# SVE copy floating-point immediate (predicated)
FCPY 00000101 .. 01 .... 110 imm:8 ..... @rdn_pg4
# SVE copy integer immediate (predicated)
CPY_m_i 00000101 .. 01 .... 01 . ........ ..... @rdn_pg4 imm=%sh8_i8s
CPY_z_i 00000101 .. 01 .... 00 . ........ ..... @rdn_pg4 imm=%sh8_i8s
### SVE Permute - Extract Group
# SVE extract vector (immediate offset)
EXT 00000101 001 ..... 000 ... rm:5 rd:5 \
&rrri rn=%reg_movprfx imm=%imm8_16_10
### SVE Permute - Unpredicated Group
# SVE broadcast general register
DUP_s 00000101 .. 1 00000 001110 ..... ..... @rd_rn
# SVE broadcast indexed element
DUP_x 00000101 .. 1 ..... 001000 rn:5 rd:5 \
&rri imm=%imm7_22_16
# SVE insert SIMD&FP scalar register
INSR_f 00000101 .. 1 10100 001110 ..... ..... @rdn_rm
# SVE insert general register
INSR_r 00000101 .. 1 00100 001110 ..... ..... @rdn_rm
# SVE reverse vector elements
REV_v 00000101 .. 1 11000 001110 ..... ..... @rd_rn
# SVE vector table lookup
TBL 00000101 .. 1 ..... 001100 ..... ..... @rd_rn_rm
# SVE unpack vector elements
UNPK 00000101 esz:2 1100 u:1 h:1 001110 rn:5 rd:5
### SVE Permute - Predicates Group
# SVE permute predicate elements
ZIP1_p 00000101 .. 10 .... 010 000 0 .... 0 .... @pd_pn_pm
ZIP2_p 00000101 .. 10 .... 010 001 0 .... 0 .... @pd_pn_pm
UZP1_p 00000101 .. 10 .... 010 010 0 .... 0 .... @pd_pn_pm
UZP2_p 00000101 .. 10 .... 010 011 0 .... 0 .... @pd_pn_pm
TRN1_p 00000101 .. 10 .... 010 100 0 .... 0 .... @pd_pn_pm
TRN2_p 00000101 .. 10 .... 010 101 0 .... 0 .... @pd_pn_pm
# SVE reverse predicate elements
REV_p 00000101 .. 11 0100 010 000 0 .... 0 .... @pd_pn
# SVE unpack predicate elements
PUNPKLO 00000101 00 11 0000 010 000 0 .... 0 .... @pd_pn_e0
PUNPKHI 00000101 00 11 0001 010 000 0 .... 0 .... @pd_pn_e0
### SVE Permute - Interleaving Group
# SVE permute vector elements
ZIP1_z 00000101 .. 1 ..... 011 000 ..... ..... @rd_rn_rm
ZIP2_z 00000101 .. 1 ..... 011 001 ..... ..... @rd_rn_rm
UZP1_z 00000101 .. 1 ..... 011 010 ..... ..... @rd_rn_rm
UZP2_z 00000101 .. 1 ..... 011 011 ..... ..... @rd_rn_rm
TRN1_z 00000101 .. 1 ..... 011 100 ..... ..... @rd_rn_rm
TRN2_z 00000101 .. 1 ..... 011 101 ..... ..... @rd_rn_rm
### SVE Permute - Predicated Group
# SVE compress active elements
# Note esz >= 2
COMPACT 00000101 .. 100001 100 ... ..... ..... @rd_pg_rn
### SVE Predicate Logical Operations Group
# SVE predicate logical operations
AND_pppp 00100101 0. 00 .... 01 .... 0 .... 0 .... @pd_pg_pn_pm_s
BIC_pppp 00100101 0. 00 .... 01 .... 0 .... 1 .... @pd_pg_pn_pm_s
EOR_pppp 00100101 0. 00 .... 01 .... 1 .... 0 .... @pd_pg_pn_pm_s
SEL_pppp 00100101 0. 00 .... 01 .... 1 .... 1 .... @pd_pg_pn_pm_s
ORR_pppp 00100101 1. 00 .... 01 .... 0 .... 0 .... @pd_pg_pn_pm_s
ORN_pppp 00100101 1. 00 .... 01 .... 0 .... 1 .... @pd_pg_pn_pm_s
NOR_pppp 00100101 1. 00 .... 01 .... 1 .... 0 .... @pd_pg_pn_pm_s
NAND_pppp 00100101 1. 00 .... 01 .... 1 .... 1 .... @pd_pg_pn_pm_s
### SVE Predicate Misc Group
# SVE predicate test
PTEST 00100101 01 010000 11 pg:4 0 rn:4 0 0000
# SVE predicate initialize
PTRUE 00100101 esz:2 01100 s:1 111000 pat:5 0 rd:4
# SVE initialize FFR
SETFFR 00100101 0010 1100 1001 0000 0000 0000
# SVE zero predicate register
PFALSE 00100101 0001 1000 1110 0100 0000 rd:4
# SVE predicate read from FFR (predicated)
RDFFR_p 00100101 0 s:1 0110001111000 pg:4 0 rd:4
# SVE predicate read from FFR (unpredicated)
RDFFR 00100101 0001 1001 1111 0000 0000 rd:4
# SVE FFR write from predicate (WRFFR)
WRFFR 00100101 0010 1000 1001 000 rn:4 00000
# SVE predicate first active
PFIRST 00100101 01 011 000 11000 00 .... 0 .... @pd_pn_e0
# SVE predicate next active
PNEXT 00100101 .. 011 001 11000 10 .... 0 .... @pd_pn
### SVE Memory - 32-bit Gather and Unsized Contiguous Group
# SVE load predicate register
LDR_pri 10000101 10 ...... 000 ... ..... 0 .... @pd_rn_i9
# SVE load vector register
LDR_zri 10000101 10 ...... 010 ... ..... ..... @rd_rn_i9
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