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#
# MicroBlaze instruction decode definitions.
#
# Copyright (c) 2020 Richard Henderson <rth@twiddle.net>
#
# 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 2.1 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/>.
#
&typea0 rd ra
&typea rd ra rb
&typeb rd ra imm
# Include any IMM prefix in the value reported.
%extimm 0:s16 !function=typeb_imm
@typea ...... rd:5 ra:5 rb:5 ... .... .... &typea
@typeb ...... rd:5 ra:5 ................ &typeb imm=%extimm
# Officially typea, but with rb==0, which is not used.
@typea0 ...... rd:5 ra:5 ................ &typea0
# Officially typeb, but any immediate extension is unused.
@typeb_bs ...... rd:5 ra:5 ..... ...... imm:5 &typeb
# For convenience, extract the two imm_w/imm_s fields, then pack
# them back together as "imm". Doing this makes it easiest to
# match the required zero at bit 5.
%ieimm 6:5 0:5
@typeb_ie ...... rd:5 ra:5 ..... ..... . ..... &typeb imm=%ieimm
###
{
zero 000000 00000 00000 00000 000 0000 0000
add 000000 ..... ..... ..... 000 0000 0000 @typea
}
addc 000010 ..... ..... ..... 000 0000 0000 @typea
addk 000100 ..... ..... ..... 000 0000 0000 @typea
addkc 000110 ..... ..... ..... 000 0000 0000 @typea
addi 001000 ..... ..... ................ @typeb
addic 001010 ..... ..... ................ @typeb
addik 001100 ..... ..... ................ @typeb
addikc 001110 ..... ..... ................ @typeb
and 100001 ..... ..... ..... 000 0000 0000 @typea
andi 101001 ..... ..... ................ @typeb
andn 100011 ..... ..... ..... 000 0000 0000 @typea
andni 101011 ..... ..... ................ @typeb
bsrl 010001 ..... ..... ..... 000 0000 0000 @typea
bsra 010001 ..... ..... ..... 010 0000 0000 @typea
bsll 010001 ..... ..... ..... 100 0000 0000 @typea
bsrli 011001 ..... ..... 00000 000000 ..... @typeb_bs
bsrai 011001 ..... ..... 00000 010000 ..... @typeb_bs
bslli 011001 ..... ..... 00000 100000 ..... @typeb_bs
bsefi 011001 ..... ..... 01000 .....0 ..... @typeb_ie
bsifi 011001 ..... ..... 10000 .....0 ..... @typeb_ie
clz 100100 ..... ..... 00000 000 1110 0000 @typea0
cmp 000101 ..... ..... ..... 000 0000 0001 @typea
cmpu 000101 ..... ..... ..... 000 0000 0011 @typea
fadd 010110 ..... ..... ..... 0000 000 0000 @typea
frsub 010110 ..... ..... ..... 0001 000 0000 @typea
fmul 010110 ..... ..... ..... 0010 000 0000 @typea
fdiv 010110 ..... ..... ..... 0011 000 0000 @typea
fcmp_un 010110 ..... ..... ..... 0100 000 0000 @typea
fcmp_lt 010110 ..... ..... ..... 0100 001 0000 @typea
fcmp_eq 010110 ..... ..... ..... 0100 010 0000 @typea
fcmp_le 010110 ..... ..... ..... 0100 011 0000 @typea
fcmp_gt 010110 ..... ..... ..... 0100 100 0000 @typea
fcmp_ne 010110 ..... ..... ..... 0100 101 0000 @typea
fcmp_ge 010110 ..... ..... ..... 0100 110 0000 @typea
# Note that flt and fint, unlike fsqrt, are documented as having the RB
# operand which is unused. So allow the field to be non-zero but discard
# the value and treat as 2-operand insns.
flt 010110 ..... ..... ----- 0101 000 0000 @typea0
fint 010110 ..... ..... ----- 0110 000 0000 @typea0
fsqrt 010110 ..... ..... 00000 0111 000 0000 @typea0
idiv 010010 ..... ..... ..... 000 0000 0000 @typea
idivu 010010 ..... ..... ..... 000 0000 0010 @typea
imm 101100 00000 00000 imm:16
mul 010000 ..... ..... ..... 000 0000 0000 @typea
mulh 010000 ..... ..... ..... 000 0000 0001 @typea
mulhu 010000 ..... ..... ..... 000 0000 0011 @typea
mulhsu 010000 ..... ..... ..... 000 0000 0010 @typea
muli 011000 ..... ..... ................ @typeb
or 100000 ..... ..... ..... 000 0000 0000 @typea
ori 101000 ..... ..... ................ @typeb
pcmpbf 100000 ..... ..... ..... 100 0000 0000 @typea
pcmpeq 100010 ..... ..... ..... 100 0000 0000 @typea
pcmpne 100011 ..... ..... ..... 100 0000 0000 @typea
rsub 000001 ..... ..... ..... 000 0000 0000 @typea
rsubc 000011 ..... ..... ..... 000 0000 0000 @typea
rsubk 000101 ..... ..... ..... 000 0000 0000 @typea
rsubkc 000111 ..... ..... ..... 000 0000 0000 @typea
rsubi 001001 ..... ..... ................ @typeb
rsubic 001011 ..... ..... ................ @typeb
rsubik 001101 ..... ..... ................ @typeb
rsubikc 001111 ..... ..... ................ @typeb
sext8 100100 ..... ..... 00000 000 0110 0000 @typea0
sext16 100100 ..... ..... 00000 000 0110 0001 @typea0
sra 100100 ..... ..... 00000 000 0000 0001 @typea0
src 100100 ..... ..... 00000 000 0010 0001 @typea0
srl 100100 ..... ..... 00000 000 0100 0001 @typea0
swapb 100100 ..... ..... 00000 001 1110 0000 @typea0
swaph 100100 ..... ..... 00000 001 1110 0010 @typea0
# Cache operations have no effect in qemu: discard the arguments.
wdic 100100 00000 ----- ----- -00 -11- 01-0 # wdc
wdic 100100 00000 ----- ----- 000 0110 1000 # wic
xor 100010 ..... ..... ..... 000 0000 0000 @typea
xori 101010 ..... ..... ................ @typeb
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