qemu/target/ppc/insn64.decode

#
# Power ISA decode for 64-bit prefixed insns (opcode space 0 and 1)
#
# Copyright (c) 2021 Instituto de Pesquisas Eldorado (eldorado.org.br)
#
# 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/>.
#

# Format MLS:D and 8LS:D
&PLS_D          rt ra si:int64_t r:bool
%pls_si         32:s18 0:16
@PLS_D          ...... .. ... r:1 .. .................. \
                ...... rt:5 ra:5 ................       \
                &PLS_D si=%pls_si
@8LS_D_TSX      ...... .. . .. r:1 .. .................. \
                ..... rt:6 ra:5 ................         \
                &PLS_D si=%pls_si

%rt_tsxp        21:1 22:4 !function=times_2
@8LS_D_TSXP     ...... .. . .. r:1 .. .................. \
                ...... ..... ra:5 ................       \
                &PLS_D si=%pls_si rt=%rt_tsxp

# Format 8RR:D
%8rr_si         32:s16 0:16
%8rr_xt         16:1 21:5
&8RR_D_IX       xt ix si
@8RR_D_IX       ...... .. .... .. .. ................ \
                ...... ..... ... ix:1 . ................ \
                &8RR_D_IX si=%8rr_si xt=%8rr_xt
&8RR_D          xt si:int32_t
@8RR_D          ...... .. .... .. .. ................ \
                ...... ..... ....  . ................ \
                &8RR_D si=%8rr_si xt=%8rr_xt

# Format XX4
&XX4            xt xa xb xc
%xx4_xt         0:1 21:5
%xx4_xa         2:1 16:5
%xx4_xb         1:1 11:5
%xx4_xc         3:1  6:5
@XX4            ........ ........ ........ ........ \
                ...... ..... ..... ..... ..... .. .... \
                &XX4 xt=%xx4_xt xa=%xx4_xa xb=%xx4_xb xc=%xx4_xc

### Fixed-Point Load Instructions

PLBZ            000001 10 0--.-- .................. \
                100010 ..... ..... ................     @PLS_D
PLHZ            000001 10 0--.-- .................. \
                101000 ..... ..... ................     @PLS_D
PLHA            000001 10 0--.-- .................. \
                101010 ..... ..... ................     @PLS_D
PLWZ            000001 10 0--.-- .................. \
                100000 ..... ..... ................     @PLS_D
PLWA            000001 00 0--.-- .................. \
                101001 ..... ..... ................     @PLS_D
PLD             000001 00 0--.-- .................. \
                111001 ..... ..... ................     @PLS_D
PLQ             000001 00 0--.-- .................. \
                111000 ..... ..... ................     @PLS_D

### Fixed-Point Store Instructions

PSTW            000001 10 0--.-- .................. \
                100100 ..... ..... ................     @PLS_D
PSTB            000001 10 0--.-- .................. \
                100110 ..... ..... ................     @PLS_D
PSTH            000001 10 0--.-- .................. \
                101100 ..... ..... ................     @PLS_D

PSTD            000001 00 0--.-- .................. \
                111101 ..... ..... ................     @PLS_D
PSTQ            000001 00 0--.-- .................. \
                111100 ..... ..... ................     @PLS_D

### Fixed-Point Arithmetic Instructions

PADDI           000001 10 0--.-- ..................     \
                001110 ..... ..... ................     @PLS_D

### Float-Point Load and Store Instructions

PLFS            000001 10 0--.-- .................. \
                110000 ..... ..... ................     @PLS_D
PLFD            000001 10 0--.-- .................. \
                110010 ..... ..... ................     @PLS_D
PSTFS           000001 10 0--.-- .................. \
                110100 ..... ..... ................     @PLS_D
PSTFD           000001 10 0--.-- .................. \
                110110 ..... ..... ................     @PLS_D

### Prefixed No-operation Instruction

@PNOP           000001 11 0000-- 000000000000000000     \
                ................................

{
  [
    ## Invalid suffixes: Branch instruction
    # bc[l][a]
    INVALID     ................................        \
                010000--------------------------        @PNOP
    # b[l][a]
    INVALID     ................................        \
                010010--------------------------        @PNOP
    # bclr[l]
    INVALID     ................................        \
                010011---------------0000010000-        @PNOP
    # bcctr[l]
    INVALID     ................................        \
                010011---------------1000010000-        @PNOP
    # bctar[l]
    INVALID     ................................        \
                010011---------------1000110000-        @PNOP

    ## Invalid suffixes: rfebb
    INVALID     ................................        \
                010011---------------0010010010-        @PNOP

    ## Invalid suffixes: context synchronizing other than isync
    # sc
    INVALID     ................................        \
                010001------------------------1-        @PNOP
    # scv
    INVALID     ................................        \
                010001------------------------01        @PNOP
    # rfscv
    INVALID     ................................        \
                010011---------------0001010010-        @PNOP
    # rfid
    INVALID     ................................        \
                010011---------------0000010010-        @PNOP
    # hrfid
    INVALID     ................................        \
                010011---------------0100010010-        @PNOP
    # urfid
    INVALID     ................................        \
                010011---------------0100110010-        @PNOP
    # stop
    INVALID     ................................        \
                010011---------------0101110010-        @PNOP
    # mtmsr w/ L=0
    INVALID     ................................        \
                011111---------0-----0010010010-        @PNOP
    # mtmsrd w/ L=0
    INVALID     ................................        \
                011111---------0-----0010110010-        @PNOP

    ## Invalid suffixes: Service Processor Attention
    INVALID     ................................        \
                000000----------------100000000-        @PNOP
  ]

  ## Valid suffixes
  PNOP          ................................        \
                --------------------------------        @PNOP
}

### VSX instructions

PLXV            000001 00 0--.-- .................. \
                11001 ...... ..... ................     @8LS_D_TSX
PSTXV           000001 00 0--.-- .................. \
                11011 ...... ..... ................     @8LS_D_TSX
PLXVP           000001 00 0--.-- .................. \
                111010 ..... ..... ................     @8LS_D_TSXP
PSTXVP          000001 00 0--.-- .................. \
                111110 ..... ..... ................     @8LS_D_TSXP

XXSPLTIDP       000001 01 0000 -- -- ................ \
                100000 ..... 0010 . ................    @8RR_D
XXSPLTIW        000001 01 0000 -- -- ................ \
                100000 ..... 0011 . ................    @8RR_D
XXSPLTI32DX     000001 01 0000 -- -- ................ \
                100000 ..... 000 .. ................    @8RR_D_IX

XXBLENDVD       000001 01 0000 -- ------------------ \
                100001 ..... ..... ..... ..... 11 ....  @XX4
XXBLENDVW       000001 01 0000 -- ------------------ \
                100001 ..... ..... ..... ..... 10 ....  @XX4
XXBLENDVH       000001 01 0000 -- ------------------ \
                100001 ..... ..... ..... ..... 01 ....  @XX4
XXBLENDVB       000001 01 0000 -- ------------------ \
                100001 ..... ..... ..... ..... 00 ....  @XX4