xref: /openbmc/qemu/target/ppc/insn64.decode (revision 6016b7b4)
1#
2# Power ISA decode for 64-bit prefixed insns (opcode space 0 and 1)
3#
4# Copyright (c) 2021 Instituto de Pesquisas Eldorado (eldorado.org.br)
5#
6# This library is free software; you can redistribute it and/or
7# modify it under the terms of the GNU Lesser General Public
8# License as published by the Free Software Foundation; either
9# version 2.1 of the License, or (at your option) any later version.
10#
11# This library is distributed in the hope that it will be useful,
12# but WITHOUT ANY WARRANTY; without even the implied warranty of
13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14# Lesser General Public License for more details.
15#
16# You should have received a copy of the GNU Lesser General Public
17# License along with this library; if not, see <http://www.gnu.org/licenses/>.
18#
19
20# Format MLS:D and 8LS:D
21&PLS_D          rt ra si:int64_t r:bool
22%pls_si         32:s18 0:16
23@PLS_D          ...... .. ... r:1 .. .................. \
24                ...... rt:5 ra:5 ................       \
25                &PLS_D si=%pls_si
26@8LS_D_TSX      ...... .. . .. r:1 .. .................. \
27                ..... rt:6 ra:5 ................         \
28                &PLS_D si=%pls_si
29
30%rt_tsxp        21:1 22:4 !function=times_2
31@8LS_D_TSXP     ...... .. . .. r:1 .. .................. \
32                ...... ..... ra:5 ................       \
33                &PLS_D si=%pls_si rt=%rt_tsxp
34
35# Format 8RR:D
36%8rr_si         32:s16 0:16
37%8rr_xt         16:1 21:5
38&8RR_D_IX       xt ix si
39@8RR_D_IX       ...... .. .... .. .. ................ \
40                ...... ..... ... ix:1 . ................ \
41                &8RR_D_IX si=%8rr_si xt=%8rr_xt
42&8RR_D          xt si:int32_t
43@8RR_D          ...... .. .... .. .. ................ \
44                ...... ..... ....  . ................ \
45                &8RR_D si=%8rr_si xt=%8rr_xt
46
47# Format XX4
48&XX4            xt xa xb xc
49%xx4_xt         0:1 21:5
50%xx4_xa         2:1 16:5
51%xx4_xb         1:1 11:5
52%xx4_xc         3:1  6:5
53@XX4            ........ ........ ........ ........ \
54                ...... ..... ..... ..... ..... .. .... \
55                &XX4 xt=%xx4_xt xa=%xx4_xa xb=%xx4_xb xc=%xx4_xc
56
57### Fixed-Point Load Instructions
58
59PLBZ            000001 10 0--.-- .................. \
60                100010 ..... ..... ................     @PLS_D
61PLHZ            000001 10 0--.-- .................. \
62                101000 ..... ..... ................     @PLS_D
63PLHA            000001 10 0--.-- .................. \
64                101010 ..... ..... ................     @PLS_D
65PLWZ            000001 10 0--.-- .................. \
66                100000 ..... ..... ................     @PLS_D
67PLWA            000001 00 0--.-- .................. \
68                101001 ..... ..... ................     @PLS_D
69PLD             000001 00 0--.-- .................. \
70                111001 ..... ..... ................     @PLS_D
71PLQ             000001 00 0--.-- .................. \
72                111000 ..... ..... ................     @PLS_D
73
74### Fixed-Point Store Instructions
75
76PSTW            000001 10 0--.-- .................. \
77                100100 ..... ..... ................     @PLS_D
78PSTB            000001 10 0--.-- .................. \
79                100110 ..... ..... ................     @PLS_D
80PSTH            000001 10 0--.-- .................. \
81                101100 ..... ..... ................     @PLS_D
82
83PSTD            000001 00 0--.-- .................. \
84                111101 ..... ..... ................     @PLS_D
85PSTQ            000001 00 0--.-- .................. \
86                111100 ..... ..... ................     @PLS_D
87
88### Fixed-Point Arithmetic Instructions
89
90PADDI           000001 10 0--.-- ..................     \
91                001110 ..... ..... ................     @PLS_D
92
93### Float-Point Load and Store Instructions
94
95PLFS            000001 10 0--.-- .................. \
96                110000 ..... ..... ................     @PLS_D
97PLFD            000001 10 0--.-- .................. \
98                110010 ..... ..... ................     @PLS_D
99PSTFS           000001 10 0--.-- .................. \
100                110100 ..... ..... ................     @PLS_D
101PSTFD           000001 10 0--.-- .................. \
102                110110 ..... ..... ................     @PLS_D
103
104### Prefixed No-operation Instruction
105
106@PNOP           000001 11 0000-- 000000000000000000     \
107                ................................
108
109{
110  [
111    ## Invalid suffixes: Branch instruction
112    # bc[l][a]
113    INVALID     ................................        \
114                010000--------------------------        @PNOP
115    # b[l][a]
116    INVALID     ................................        \
117                010010--------------------------        @PNOP
118    # bclr[l]
119    INVALID     ................................        \
120                010011---------------0000010000-        @PNOP
121    # bcctr[l]
122    INVALID     ................................        \
123                010011---------------1000010000-        @PNOP
124    # bctar[l]
125    INVALID     ................................        \
126                010011---------------1000110000-        @PNOP
127
128    ## Invalid suffixes: rfebb
129    INVALID     ................................        \
130                010011---------------0010010010-        @PNOP
131
132    ## Invalid suffixes: context synchronizing other than isync
133    # sc
134    INVALID     ................................        \
135                010001------------------------1-        @PNOP
136    # scv
137    INVALID     ................................        \
138                010001------------------------01        @PNOP
139    # rfscv
140    INVALID     ................................        \
141                010011---------------0001010010-        @PNOP
142    # rfid
143    INVALID     ................................        \
144                010011---------------0000010010-        @PNOP
145    # hrfid
146    INVALID     ................................        \
147                010011---------------0100010010-        @PNOP
148    # urfid
149    INVALID     ................................        \
150                010011---------------0100110010-        @PNOP
151    # stop
152    INVALID     ................................        \
153                010011---------------0101110010-        @PNOP
154    # mtmsr w/ L=0
155    INVALID     ................................        \
156                011111---------0-----0010010010-        @PNOP
157    # mtmsrd w/ L=0
158    INVALID     ................................        \
159                011111---------0-----0010110010-        @PNOP
160
161    ## Invalid suffixes: Service Processor Attention
162    INVALID     ................................        \
163                000000----------------100000000-        @PNOP
164  ]
165
166  ## Valid suffixes
167  PNOP          ................................        \
168                --------------------------------        @PNOP
169}
170
171### VSX instructions
172
173PLXV            000001 00 0--.-- .................. \
174                11001 ...... ..... ................     @8LS_D_TSX
175PSTXV           000001 00 0--.-- .................. \
176                11011 ...... ..... ................     @8LS_D_TSX
177PLXVP           000001 00 0--.-- .................. \
178                111010 ..... ..... ................     @8LS_D_TSXP
179PSTXVP          000001 00 0--.-- .................. \
180                111110 ..... ..... ................     @8LS_D_TSXP
181
182XXSPLTIDP       000001 01 0000 -- -- ................ \
183                100000 ..... 0010 . ................    @8RR_D
184XXSPLTIW        000001 01 0000 -- -- ................ \
185                100000 ..... 0011 . ................    @8RR_D
186XXSPLTI32DX     000001 01 0000 -- -- ................ \
187                100000 ..... 000 .. ................    @8RR_D_IX
188
189XXBLENDVD       000001 01 0000 -- ------------------ \
190                100001 ..... ..... ..... ..... 11 ....  @XX4
191XXBLENDVW       000001 01 0000 -- ------------------ \
192                100001 ..... ..... ..... ..... 10 ....  @XX4
193XXBLENDVH       000001 01 0000 -- ------------------ \
194                100001 ..... ..... ..... ..... 01 ....  @XX4
195XXBLENDVB       000001 01 0000 -- ------------------ \
196                100001 ..... ..... ..... ..... 00 ....  @XX4
197