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# Thumb1 instructions
#
# Copyright (c) 2019 Linaro, Ltd
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, see <http://www.gnu.org/licenses/>.
#
# This file is processed by scripts/decodetree.py
#
&s_rrr_shi !extern s rd rn rm shim shty
&s_rrr_shr !extern s rn rd rm rs shty
&s_rri_rot !extern s rn rd imm rot
&s_rrrr !extern s rd rn rm ra
&ldst_rr !extern p w u rn rt rm shimm shtype
# Set S if the instruction is outside of an IT block.
%s !function=t16_setflags
# Data-processing (two low registers)
%reg_0 0:3
@lll_noshr ...... .... rm:3 rd:3 \
&s_rrr_shi %s rn=%reg_0 shim=0 shty=0
@xll_noshr ...... .... rm:3 rn:3 \
&s_rrr_shi s=1 rd=0 shim=0 shty=0
@lxl_shr ...... .... rs:3 rd:3 \
&s_rrr_shr %s rm=%reg_0 rn=0
AND_rrri 010000 0000 ... ... @lll_noshr
EOR_rrri 010000 0001 ... ... @lll_noshr
MOV_rxrr 010000 0010 ... ... @lxl_shr shty=0 # LSL
MOV_rxrr 010000 0011 ... ... @lxl_shr shty=1 # LSR
MOV_rxrr 010000 0100 ... ... @lxl_shr shty=2 # ASR
ADC_rrri 010000 0101 ... ... @lll_noshr
SBC_rrri 010000 0110 ... ... @lll_noshr
MOV_rxrr 010000 0111 ... ... @lxl_shr shty=3 # ROR
TST_xrri 010000 1000 ... ... @xll_noshr
RSB_rri 010000 1001 rn:3 rd:3 &s_rri_rot %s imm=0 rot=0
CMP_xrri 010000 1010 ... ... @xll_noshr
CMN_xrri 010000 1011 ... ... @xll_noshr
ORR_rrri 010000 1100 ... ... @lll_noshr
MUL 010000 1101 rn:3 rd:3 &s_rrrr %s rm=%reg_0 ra=0
BIC_rrri 010000 1110 ... ... @lll_noshr
MVN_rxri 010000 1111 ... ... @lll_noshr
# Load/store (register offset)
@ldst_rr ....... rm:3 rn:3 rt:3 \
&ldst_rr p=1 w=0 u=1 shimm=0 shtype=0
STR_rr 0101 000 ... ... ... @ldst_rr
STRH_rr 0101 001 ... ... ... @ldst_rr
STRB_rr 0101 010 ... ... ... @ldst_rr
LDRSB_rr 0101 011 ... ... ... @ldst_rr
LDR_rr 0101 100 ... ... ... @ldst_rr
LDRH_rr 0101 101 ... ... ... @ldst_rr
LDRB_rr 0101 110 ... ... ... @ldst_rr
LDRSH_rr 0101 111 ... ... ... @ldst_rr
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