1# 2# MicroBlaze instruction decode definitions. 3# 4# Copyright (c) 2020 Richard Henderson <rth@twiddle.net> 5# 6# This library is free software; you can redistribute it and/or 7# modify it under the terms of the GNU Lesser General Public 8# License as published by the Free Software Foundation; either 9# version 2.1 of the License, or (at your option) any later version. 10# 11# This library is distributed in the hope that it will be useful, 12# but WITHOUT ANY WARRANTY; without even the implied warranty of 13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14# Lesser General Public License for more details. 15# 16# You should have received a copy of the GNU Lesser General Public 17# License along with this library; if not, see <http://www.gnu.org/licenses/>. 18# 19 20&typea0 rd ra 21&typea rd ra rb 22&typea_br rd rb 23&typeb rd ra imm 24&typeb_br rd imm 25 26# Include any IMM prefix in the value reported. 27%extimm 0:s16 !function=typeb_imm 28 29@typea ...... rd:5 ra:5 rb:5 ... .... .... &typea 30@typeb ...... rd:5 ra:5 ................ &typeb imm=%extimm 31 32# Officially typea, but with rb==0, which is not used. 33@typea0 ...... rd:5 ra:5 ................ &typea0 34 35# Officially typea, but with ra as opcode. 36@typea_br ...... rd:5 ..... rb:5 ........... &typea_br 37 38# Officially typeb, but any immediate extension is unused. 39@typeb_bs ...... rd:5 ra:5 ..... ...... imm:5 &typeb 40 41# Officially typeb, but with ra as opcode. 42@typeb_br ...... rd:5 ..... ................ &typeb_br imm=%extimm 43 44# For convenience, extract the two imm_w/imm_s fields, then pack 45# them back together as "imm". Doing this makes it easiest to 46# match the required zero at bit 5. 47%ieimm 6:5 0:5 48@typeb_ie ...... rd:5 ra:5 ..... ..... . ..... &typeb imm=%ieimm 49 50### 51 52{ 53 zero 000000 00000 00000 00000 000 0000 0000 54 add 000000 ..... ..... ..... 000 0000 0000 @typea 55} 56addc 000010 ..... ..... ..... 000 0000 0000 @typea 57addk 000100 ..... ..... ..... 000 0000 0000 @typea 58addkc 000110 ..... ..... ..... 000 0000 0000 @typea 59 60addi 001000 ..... ..... ................ @typeb 61addic 001010 ..... ..... ................ @typeb 62addik 001100 ..... ..... ................ @typeb 63addikc 001110 ..... ..... ................ @typeb 64 65and 100001 ..... ..... ..... 000 0000 0000 @typea 66andi 101001 ..... ..... ................ @typeb 67 68andn 100011 ..... ..... ..... 000 0000 0000 @typea 69andni 101011 ..... ..... ................ @typeb 70 71brk 100110 ..... 01100 ..... 000 0000 0000 @typea_br 72brki 101110 ..... 01100 ................ @typeb_br 73 74bsrl 010001 ..... ..... ..... 000 0000 0000 @typea 75bsra 010001 ..... ..... ..... 010 0000 0000 @typea 76bsll 010001 ..... ..... ..... 100 0000 0000 @typea 77 78bsrli 011001 ..... ..... 00000 000000 ..... @typeb_bs 79bsrai 011001 ..... ..... 00000 010000 ..... @typeb_bs 80bslli 011001 ..... ..... 00000 100000 ..... @typeb_bs 81 82bsefi 011001 ..... ..... 01000 .....0 ..... @typeb_ie 83bsifi 011001 ..... ..... 10000 .....0 ..... @typeb_ie 84 85clz 100100 ..... ..... 00000 000 1110 0000 @typea0 86 87cmp 000101 ..... ..... ..... 000 0000 0001 @typea 88cmpu 000101 ..... ..... ..... 000 0000 0011 @typea 89 90fadd 010110 ..... ..... ..... 0000 000 0000 @typea 91frsub 010110 ..... ..... ..... 0001 000 0000 @typea 92fmul 010110 ..... ..... ..... 0010 000 0000 @typea 93fdiv 010110 ..... ..... ..... 0011 000 0000 @typea 94fcmp_un 010110 ..... ..... ..... 0100 000 0000 @typea 95fcmp_lt 010110 ..... ..... ..... 0100 001 0000 @typea 96fcmp_eq 010110 ..... ..... ..... 0100 010 0000 @typea 97fcmp_le 010110 ..... ..... ..... 0100 011 0000 @typea 98fcmp_gt 010110 ..... ..... ..... 0100 100 0000 @typea 99fcmp_ne 010110 ..... ..... ..... 0100 101 0000 @typea 100fcmp_ge 010110 ..... ..... ..... 0100 110 0000 @typea 101 102# Note that flt and fint, unlike fsqrt, are documented as having the RB 103# operand which is unused. So allow the field to be non-zero but discard 104# the value and treat as 2-operand insns. 105flt 010110 ..... ..... ----- 0101 000 0000 @typea0 106fint 010110 ..... ..... ----- 0110 000 0000 @typea0 107fsqrt 010110 ..... ..... 00000 0111 000 0000 @typea0 108 109idiv 010010 ..... ..... ..... 000 0000 0000 @typea 110idivu 010010 ..... ..... ..... 000 0000 0010 @typea 111 112imm 101100 00000 00000 imm:16 113 114lbu 110000 ..... ..... ..... 0000 000 0000 @typea 115lbur 110000 ..... ..... ..... 0100 000 0000 @typea 116lbuea 110000 ..... ..... ..... 0001 000 0000 @typea 117lbui 111000 ..... ..... ................ @typeb 118 119lhu 110001 ..... ..... ..... 0000 000 0000 @typea 120lhur 110001 ..... ..... ..... 0100 000 0000 @typea 121lhuea 110001 ..... ..... ..... 0001 000 0000 @typea 122lhui 111001 ..... ..... ................ @typeb 123 124lw 110010 ..... ..... ..... 0000 000 0000 @typea 125lwr 110010 ..... ..... ..... 0100 000 0000 @typea 126lwea 110010 ..... ..... ..... 0001 000 0000 @typea 127lwx 110010 ..... ..... ..... 1000 000 0000 @typea 128lwi 111010 ..... ..... ................ @typeb 129 130mul 010000 ..... ..... ..... 000 0000 0000 @typea 131mulh 010000 ..... ..... ..... 000 0000 0001 @typea 132mulhu 010000 ..... ..... ..... 000 0000 0011 @typea 133mulhsu 010000 ..... ..... ..... 000 0000 0010 @typea 134muli 011000 ..... ..... ................ @typeb 135 136or 100000 ..... ..... ..... 000 0000 0000 @typea 137ori 101000 ..... ..... ................ @typeb 138 139pcmpbf 100000 ..... ..... ..... 100 0000 0000 @typea 140pcmpeq 100010 ..... ..... ..... 100 0000 0000 @typea 141pcmpne 100011 ..... ..... ..... 100 0000 0000 @typea 142 143rsub 000001 ..... ..... ..... 000 0000 0000 @typea 144rsubc 000011 ..... ..... ..... 000 0000 0000 @typea 145rsubk 000101 ..... ..... ..... 000 0000 0000 @typea 146rsubkc 000111 ..... ..... ..... 000 0000 0000 @typea 147 148rsubi 001001 ..... ..... ................ @typeb 149rsubic 001011 ..... ..... ................ @typeb 150rsubik 001101 ..... ..... ................ @typeb 151rsubikc 001111 ..... ..... ................ @typeb 152 153sb 110100 ..... ..... ..... 0000 000 0000 @typea 154sbr 110100 ..... ..... ..... 0100 000 0000 @typea 155sbea 110100 ..... ..... ..... 0001 000 0000 @typea 156sbi 111100 ..... ..... ................ @typeb 157 158sh 110101 ..... ..... ..... 0000 000 0000 @typea 159shr 110101 ..... ..... ..... 0100 000 0000 @typea 160shea 110101 ..... ..... ..... 0001 000 0000 @typea 161shi 111101 ..... ..... ................ @typeb 162 163sw 110110 ..... ..... ..... 0000 000 0000 @typea 164swr 110110 ..... ..... ..... 0100 000 0000 @typea 165swea 110110 ..... ..... ..... 0001 000 0000 @typea 166swx 110110 ..... ..... ..... 1000 000 0000 @typea 167swi 111110 ..... ..... ................ @typeb 168 169sext8 100100 ..... ..... 00000 000 0110 0000 @typea0 170sext16 100100 ..... ..... 00000 000 0110 0001 @typea0 171 172sra 100100 ..... ..... 00000 000 0000 0001 @typea0 173src 100100 ..... ..... 00000 000 0010 0001 @typea0 174srl 100100 ..... ..... 00000 000 0100 0001 @typea0 175 176swapb 100100 ..... ..... 00000 001 1110 0000 @typea0 177swaph 100100 ..... ..... 00000 001 1110 0010 @typea0 178 179# Cache operations have no effect in qemu: discard the arguments. 180wdic 100100 00000 ----- ----- -00 -11- 01-0 # wdc 181wdic 100100 00000 ----- ----- 000 0110 1000 # wic 182 183xor 100010 ..... ..... ..... 000 0000 0000 @typea 184xori 101010 ..... ..... ................ @typeb 185