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 33BLX_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 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 43CPS 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. 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 54 55# Set Endianness 56SETEND 1111 0001 0000 0001 0000 00 E:1 0 0000 0000 &setend 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 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 ----