sve.decode

# 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.

%imm9_16_10     16:s6 10:3

###########################################################################
# Named attribute sets.  These are used to make nice(er) names
# when creating helpers common to those for the individual
# instruction patterns.

&rri            rd rn imm
&rrr_esz        rd rn rm esz

###########################################################################
# Named instruction formats.  These are generally used to
# reduce the amount of duplication between instruction patterns.

# Three operand with unused vector element size
@rd_rn_rm_e0    ........ ... rm:5 ... ... rn:5 rd:5             &rrr_esz esz=0

# 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

###########################################################################
# Instruction patterns.  Grouped according to the SVE encodingindex.xhtml.

### 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 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