a32-uncond.decode (2687B)
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 8 # version 2.1 of the License, or (at your option) any later version. 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 # 24 25 &empty !extern 26 &i !extern imm 27 &setend E 28 29 # Branch with Link and Exchange 30 31 %imm24h 0:s24 24:1 !function=times_2 32 33 BLX_i 1111 101 . ........................ &i imm=%imm24h 34 35 # System Instructions 36 37 &rfe rn w pu 38 &srs mode w pu 39 &cps mode imod M A I F 40 41 RFE 1111 100 pu:2 0 w:1 1 rn:4 0000 1010 0000 0000 &rfe 42 SRS 1111 100 pu:2 1 w:1 0 1101 0000 0101 000 mode:5 &srs 43 CPS 1111 0001 0000 imod:2 M:1 0 0000 000 A:1 I:1 F:1 0 mode:5 \ 44 &cps 45 46 # Clear-Exclusive, Barriers 47 48 # QEMU does not require the option field for the barriers. 49 CLREX 1111 0101 0111 1111 1111 0000 0001 1111 50 DSB 1111 0101 0111 1111 1111 0000 0100 ---- 51 DMB 1111 0101 0111 1111 1111 0000 0101 ---- 52 ISB 1111 0101 0111 1111 1111 0000 0110 ---- 53 SB 1111 0101 0111 1111 1111 0000 0111 0000 54 55 # Set Endianness 56 SETEND 1111 0001 0000 0001 0000 00 E:1 0 0000 0000 &setend 57 58 # Preload instructions 59 60 PLD 1111 0101 -101 ---- 1111 ---- ---- ---- # (imm, lit) 5te 61 PLDW 1111 0101 -001 ---- 1111 ---- ---- ---- # (imm, lit) 7mp 62 PLI 1111 0100 -101 ---- 1111 ---- ---- ---- # (imm, lit) 7 63 64 PLD 1111 0111 -101 ---- 1111 ----- -- 0 ---- # (register) 5te 65 PLDW 1111 0111 -001 ---- 1111 ----- -- 0 ---- # (register) 7mp 66 PLI 1111 0110 -101 ---- 1111 ----- -- 0 ---- # (register) 7 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 73 PLDW 1111 0100 -001 ---- ---- ---- ---- ---- 74 PLDW 1111 0110 -001 ---- ---- ---- ---0 ----