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qemu / qemu / 7ae714628745e28e0f1e2d5ad0f95b27a40ff5c2 / . / target / arm / a32-uncond.decode
blob: 2339de2e943309e9ebd276cc455c547a28bce09c [file] [log] [blame]
Richard Henderson51409b92019-09-04 12:29:52 -0700[diff] [blame]1# A32 unconditional instructions
2#
3# Copyright (c) 2019 Linaro, Ltd
4#
5# This library is free software; you can redistribute it and/or
6# modify it under the terms of the GNU Lesser General Public
7# License as published by the Free Software Foundation; either
Chetan Pant50f57e02020-10-23 12:29:13 +0000[diff] [blame]8# version 2.1 of the License, or (at your option) any later version.
Richard Henderson51409b92019-09-04 12:29:52 -0700[diff] [blame]9#
10# This library is distributed in the hope that it will be useful,
11# but WITHOUT ANY WARRANTY; without even the implied warranty of
12# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13# Lesser General Public License for more details.
14#
15# You should have received a copy of the GNU Lesser General Public
16# License along with this library; if not, see <http://www.gnu.org/licenses/>.
17
18#
19# This file is processed by scripts/decodetree.py
20#
21# All insns that have 0xf in insn[31:28] are decoded here.
22# All of those that have a COND field in insn[31:28] are in a32.decode
23#
Richard Henderson360144f2019-09-04 12:30:22 -0700[diff] [blame]24
Richard Henderson519b8472019-09-04 12:30:25 -0700[diff] [blame]25&empty !extern
Richard Henderson360144f2019-09-04 12:30:22 -0700[diff] [blame]26&i !extern imm
Richard Henderson48c04a52019-09-04 12:30:27 -0700[diff] [blame]27&setend E
Richard Henderson360144f2019-09-04 12:30:22 -0700[diff] [blame]28
29# Branch with Link and Exchange
30
31%imm24h 0:s24 24:1 !function=times_2
32
33BLX_i 1111 101 . ........................ &i imm=%imm24h
Richard Henderson885782a2019-09-04 12:30:24 -0700[diff] [blame]34
35# System Instructions
36
37&rfe rn w pu
38&srs mode w pu
Richard Henderson52f83b92019-09-04 12:30:26 -0700[diff] [blame]39&cps mode imod M A I F
Richard Henderson885782a2019-09-04 12:30:24 -0700[diff] [blame]40
41RFE 1111 100 pu:2 0 w:1 1 rn:4 0000 1010 0000 0000 &rfe
42SRS 1111 100 pu:2 1 w:1 0 1101 0000 0101 000 mode:5 &srs
Richard Henderson52f83b92019-09-04 12:30:26 -0700[diff] [blame]43CPS 1111 0001 0000 imod:2 M:1 0 0000 000 A:1 I:1 F:1 0 mode:5 \
44 &cps
Richard Henderson519b8472019-09-04 12:30:25 -0700[diff] [blame]45
46# Clear-Exclusive, Barriers
47
48# QEMU does not require the option field for the barriers.
49CLREX 1111 0101 0111 1111 1111 0000 0001 1111
50DSB 1111 0101 0111 1111 1111 0000 0100 ----
51DMB 1111 0101 0111 1111 1111 0000 0101 ----
52ISB 1111 0101 0111 1111 1111 0000 0110 ----
53SB 1111 0101 0111 1111 1111 0000 0111 0000
Richard Henderson48c04a52019-09-04 12:30:27 -0700[diff] [blame]54
55# Set Endianness
56SETEND 1111 0001 0000 0001 0000 00 E:1 0 0000 0000 &setend
Richard Hendersonbeb595f2019-09-04 12:30:28 -0700[diff] [blame]57
58# Preload instructions
59
60PLD 1111 0101 -101 ---- 1111 ---- ---- ---- # (imm, lit) 5te
61PLDW 1111 0101 -001 ---- 1111 ---- ---- ---- # (imm, lit) 7mp
62PLI 1111 0100 -101 ---- 1111 ---- ---- ---- # (imm, lit) 7
63
64PLD 1111 0111 -101 ---- 1111 ----- -- 0 ---- # (register) 5te
65PLDW 1111 0111 -001 ---- 1111 ----- -- 0 ---- # (register) 7mp
66PLI 1111 0110 -101 ---- 1111 ----- -- 0 ---- # (register) 7
Richard Henderson610f4e12019-09-04 12:30:29 -0700[diff] [blame]67
68# Unallocated memory hints
69#
70# Since these are v7MP nops, and PLDW is v7MP and implemented as nop,
71# (ab)use the PLDW helper.
72
73PLDW 1111 0100 -001 ---- ---- ---- ---- ----
74PLDW 1111 0110 -001 ---- ---- ---- ---0 ----