xref: /openbmc/qemu/target/ppc/insn64.decode (revision 79d51d73)
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@8LS_D          ...... .. . .. r:1 .. .................. \
36                ...... rt:5 ra:5 ................        \
37                &PLS_D si=%pls_si
38
39# Format 8RR:D
40%8rr_si         32:s16 0:16
41%8rr_xt         16:1 21:5
42&8RR_D_IX       xt ix si
43@8RR_D_IX       ...... .. .... .. .. ................ \
44                ...... ..... ... ix:1 . ................ \
45                &8RR_D_IX si=%8rr_si xt=%8rr_xt
46&8RR_D          xt si:int32_t
47@8RR_D          ...... .. .... .. .. ................ \
48                ...... ..... ....  . ................ \
49                &8RR_D si=%8rr_si xt=%8rr_xt
50
51# Format 8RR:XX4
52%8rr_xx_xt      0:1 21:5
53%8rr_xx_xa      2:1 16:5
54%8rr_xx_xb      1:1 11:5
55%8rr_xx_xc      3:1  6:5
56&8RR_XX4        xt xa xb xc
57@8RR_XX4        ........ ........ ........ ........ \
58                ...... ..... ..... ..... ..... .. .... \
59                &8RR_XX4 xt=%8rr_xx_xt xa=%8rr_xx_xa xb=%8rr_xx_xb xc=%8rr_xx_xc
60
61&8RR_XX4_imm    xt xa xb xc imm
62@8RR_XX4_imm    ........ ........ ........ imm:8 \
63                ...... ..... ..... ..... ..... .. .... \
64                &8RR_XX4_imm xt=%8rr_xx_xt xa=%8rr_xx_xa xb=%8rr_xx_xb xc=%8rr_xx_xc
65
66&8RR_XX4_uim3   xt xa xb xc uim3
67@8RR_XX4_uim3   ...... .. .... .. ............... uim3:3 \
68                ...... ..... ..... ..... ..... .. ....   \
69                &8RR_XX4_uim3 xt=%8rr_xx_xt xa=%8rr_xx_xa xb=%8rr_xx_xb xc=%8rr_xx_xc
70
71### Fixed-Point Load Instructions
72
73PLBZ            000001 10 0--.-- .................. \
74                100010 ..... ..... ................     @PLS_D
75PLHZ            000001 10 0--.-- .................. \
76                101000 ..... ..... ................     @PLS_D
77PLHA            000001 10 0--.-- .................. \
78                101010 ..... ..... ................     @PLS_D
79PLWZ            000001 10 0--.-- .................. \
80                100000 ..... ..... ................     @PLS_D
81PLWA            000001 00 0--.-- .................. \
82                101001 ..... ..... ................     @PLS_D
83PLD             000001 00 0--.-- .................. \
84                111001 ..... ..... ................     @PLS_D
85PLQ             000001 00 0--.-- .................. \
86                111000 ..... ..... ................     @PLS_D
87
88### Fixed-Point Store Instructions
89
90PSTW            000001 10 0--.-- .................. \
91                100100 ..... ..... ................     @PLS_D
92PSTB            000001 10 0--.-- .................. \
93                100110 ..... ..... ................     @PLS_D
94PSTH            000001 10 0--.-- .................. \
95                101100 ..... ..... ................     @PLS_D
96
97PSTD            000001 00 0--.-- .................. \
98                111101 ..... ..... ................     @PLS_D
99PSTQ            000001 00 0--.-- .................. \
100                111100 ..... ..... ................     @PLS_D
101
102### Fixed-Point Arithmetic Instructions
103
104PADDI           000001 10 0--.-- ..................     \
105                001110 ..... ..... ................     @PLS_D
106
107### Float-Point Load and Store Instructions
108
109PLFS            000001 10 0--.-- .................. \
110                110000 ..... ..... ................     @PLS_D
111PLFD            000001 10 0--.-- .................. \
112                110010 ..... ..... ................     @PLS_D
113PSTFS           000001 10 0--.-- .................. \
114                110100 ..... ..... ................     @PLS_D
115PSTFD           000001 10 0--.-- .................. \
116                110110 ..... ..... ................     @PLS_D
117
118### Prefixed No-operation Instruction
119
120@PNOP           000001 11 0000-- 000000000000000000     \
121                ................................
122
123{
124  [
125    ## Invalid suffixes: Branch instruction
126    # bc[l][a]
127    INVALID     ................................        \
128                010000--------------------------        @PNOP
129    # b[l][a]
130    INVALID     ................................        \
131                010010--------------------------        @PNOP
132    # bclr[l]
133    INVALID     ................................        \
134                010011---------------0000010000-        @PNOP
135    # bcctr[l]
136    INVALID     ................................        \
137                010011---------------1000010000-        @PNOP
138    # bctar[l]
139    INVALID     ................................        \
140                010011---------------1000110000-        @PNOP
141
142    ## Invalid suffixes: rfebb
143    INVALID     ................................        \
144                010011---------------0010010010-        @PNOP
145
146    ## Invalid suffixes: context synchronizing other than isync
147    # sc
148    INVALID     ................................        \
149                010001------------------------1-        @PNOP
150    # scv
151    INVALID     ................................        \
152                010001------------------------01        @PNOP
153    # rfscv
154    INVALID     ................................        \
155                010011---------------0001010010-        @PNOP
156    # rfid
157    INVALID     ................................        \
158                010011---------------0000010010-        @PNOP
159    # hrfid
160    INVALID     ................................        \
161                010011---------------0100010010-        @PNOP
162    # urfid
163    INVALID     ................................        \
164                010011---------------0100110010-        @PNOP
165    # stop
166    INVALID     ................................        \
167                010011---------------0101110010-        @PNOP
168    # mtmsr w/ L=0
169    INVALID     ................................        \
170                011111---------0-----0010010010-        @PNOP
171    # mtmsrd w/ L=0
172    INVALID     ................................        \
173                011111---------0-----0010110010-        @PNOP
174
175    ## Invalid suffixes: Service Processor Attention
176    INVALID     ................................        \
177                000000----------------100000000-        @PNOP
178  ]
179
180  ## Valid suffixes
181  PNOP          ................................        \
182                --------------------------------        @PNOP
183}
184
185### VSX instructions
186
187PLXSD           000001 00 0--.-- .................. \
188                101010 ..... ..... ................     @8LS_D
189
190PSTXSD          000001 00 0--.-- .................. \
191                101110 ..... ..... ................     @8LS_D
192
193PLXSSP          000001 00 0--.-- .................. \
194                101011 ..... ..... ................     @8LS_D
195
196PSTXSSP         000001 00 0--.-- .................. \
197                101111 ..... ..... ................     @8LS_D
198
199PLXV            000001 00 0--.-- .................. \
200                11001 ...... ..... ................     @8LS_D_TSX
201PSTXV           000001 00 0--.-- .................. \
202                11011 ...... ..... ................     @8LS_D_TSX
203PLXVP           000001 00 0--.-- .................. \
204                111010 ..... ..... ................     @8LS_D_TSXP
205PSTXVP          000001 00 0--.-- .................. \
206                111110 ..... ..... ................     @8LS_D_TSXP
207
208XXEVAL          000001 01 0000 -- ---------- ........ \
209                100010 ..... ..... ..... ..... 01 ....  @8RR_XX4_imm
210
211XXSPLTIDP       000001 01 0000 -- -- ................ \
212                100000 ..... 0010 . ................    @8RR_D
213XXSPLTIW        000001 01 0000 -- -- ................ \
214                100000 ..... 0011 . ................    @8RR_D
215XXSPLTI32DX     000001 01 0000 -- -- ................ \
216                100000 ..... 000 .. ................    @8RR_D_IX
217
218XXBLENDVD       000001 01 0000 -- ------------------ \
219                100001 ..... ..... ..... ..... 11 ....  @8RR_XX4
220XXBLENDVW       000001 01 0000 -- ------------------ \
221                100001 ..... ..... ..... ..... 10 ....  @8RR_XX4
222XXBLENDVH       000001 01 0000 -- ------------------ \
223                100001 ..... ..... ..... ..... 01 ....  @8RR_XX4
224XXBLENDVB       000001 01 0000 -- ------------------ \
225                100001 ..... ..... ..... ..... 00 ....  @8RR_XX4
226
227XXPERMX         000001 01 0000 -- --------------- ... \
228                100010 ..... ..... ..... ..... 00 ....  @8RR_XX4_uim3
229