| 1 | /* Table of opcodes for the OpenRISC 1000 ISA. |
| 2 | Copyright 2002, 2004, 2005, 2007, 2008, 2009 Free Software Foundation, Inc. |
| 3 | Contributed by Damjan Lampret (lampret@opencores.org). |
| 4 | |
| 5 | This file is part of the GNU opcodes library. |
| 6 | |
| 7 | This library is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 3, or (at your option) |
| 10 | any later version. |
| 11 | |
| 12 | It is distributed in the hope that it will be useful, but WITHOUT |
| 13 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
| 14 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public |
| 15 | License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
| 20 | MA 02110-1301, USA. */ |
| 21 | |
| 22 | /* We treat all letters the same in encode/decode routines so |
| 23 | we need to assign some characteristics to them like signess etc. */ |
| 24 | #include <string.h> |
| 25 | #include <stdio.h> |
| 26 | #include <stdlib.h> |
| 27 | #include "safe-ctype.h" |
| 28 | #include "ansidecl.h" |
| 29 | #ifdef HAVE_CONFIG_H |
| 30 | # include "config.h" |
| 31 | #endif |
| 32 | #include "opcode/or32.h" |
| 33 | |
| 34 | const struct or32_letter or32_letters[] = |
| 35 | { |
| 36 | { 'A', NUM_UNSIGNED }, |
| 37 | { 'B', NUM_UNSIGNED }, |
| 38 | { 'D', NUM_UNSIGNED }, |
| 39 | { 'I', NUM_SIGNED }, |
| 40 | { 'K', NUM_UNSIGNED }, |
| 41 | { 'L', NUM_UNSIGNED }, |
| 42 | { 'N', NUM_SIGNED }, |
| 43 | { '0', NUM_UNSIGNED }, |
| 44 | { '\0', 0 } /* Dummy entry. */ |
| 45 | }; |
| 46 | |
| 47 | /* Opcode encoding: |
| 48 | machine[31:30]: first two bits of opcode |
| 49 | 00 - neither of source operands is GPR |
| 50 | 01 - second source operand is GPR (rB) |
| 51 | 10 - first source operand is GPR (rA) |
| 52 | 11 - both source operands are GPRs (rA and rB) |
| 53 | machine[29:26]: next four bits of opcode |
| 54 | machine[25:00]: instruction operands (specific to individual instruction) |
| 55 | |
| 56 | Recommendation: irrelevant instruction bits should be set with a value of |
| 57 | bits in same positions of instruction preceding current instruction in the |
| 58 | code (when assembling). */ |
| 59 | |
| 60 | #define EFN &l_none |
| 61 | |
| 62 | #ifdef HAS_EXECUTION |
| 63 | #define EF(func) &(func) |
| 64 | #define EFI &l_invalid |
| 65 | #else /* HAS_EXECUTION */ |
| 66 | #define EF(func) EFN |
| 67 | #define EFI EFN |
| 68 | #endif /* HAS_EXECUTION */ |
| 69 | |
| 70 | const struct or32_opcode or32_opcodes[] = |
| 71 | { |
| 72 | { "l.j", "N", "00 0x0 NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_j), OR32_IF_DELAY }, |
| 73 | { "l.jal", "N", "00 0x1 NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_jal), OR32_IF_DELAY }, |
| 74 | { "l.bnf", "N", "00 0x3 NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_bnf), OR32_IF_DELAY | OR32_R_FLAG}, |
| 75 | { "l.bf", "N", "00 0x4 NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_bf), OR32_IF_DELAY | OR32_R_FLAG }, |
| 76 | { "l.nop", "K", "00 0x5 01--- ----- KKKK KKKK KKKK KKKK", EF(l_nop), 0 }, |
| 77 | { "l.movhi", "rD,K", "00 0x6 DDDDD ----0 KKKK KKKK KKKK KKKK", EF(l_movhi), 0 }, /*MM*/ |
| 78 | { "l.macrc", "rD", "00 0x6 DDDDD ----1 0000 0000 0000 0000", EF(l_macrc), 0 }, /*MM*/ |
| 79 | |
| 80 | { "l.sys", "K", "00 0x8 00000 00000 KKKK KKKK KKKK KKKK", EF(l_sys), 0 }, |
| 81 | { "l.trap", "K", "00 0x8 01000 00000 KKKK KKKK KKKK KKKK", EF(l_trap), 0 }, /* CZ 21/06/01 */ |
| 82 | { "l.msync", "", "00 0x8 10000 00000 0000 0000 0000 0000", EFN, 0 }, |
| 83 | { "l.psync", "", "00 0x8 10100 00000 0000 0000 0000 0000", EFN, 0 }, |
| 84 | { "l.csync", "", "00 0x8 11000 00000 0000 0000 0000 0000", EFN, 0 }, |
| 85 | { "l.rfe", "", "00 0x9 ----- ----- ---- ---- ---- ----", EF(l_rfe), OR32_IF_DELAY }, |
| 86 | |
| 87 | { "lv.all_eq.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x1 0x0", EFI, 0 }, |
| 88 | { "lv.all_eq.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x1 0x1", EFI, 0 }, |
| 89 | { "lv.all_ge.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x1 0x2", EFI, 0 }, |
| 90 | { "lv.all_ge.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x1 0x3", EFI, 0 }, |
| 91 | { "lv.all_gt.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x1 0x4", EFI, 0 }, |
| 92 | { "lv.all_gt.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x1 0x5", EFI, 0 }, |
| 93 | { "lv.all_le.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x1 0x6", EFI, 0 }, |
| 94 | { "lv.all_le.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x1 0x7", EFI, 0 }, |
| 95 | { "lv.all_lt.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x1 0x8", EFI, 0 }, |
| 96 | { "lv.all_lt.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x1 0x9", EFI, 0 }, |
| 97 | { "lv.all_ne.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x1 0xA", EFI, 0 }, |
| 98 | { "lv.all_ne.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x1 0xB", EFI, 0 }, |
| 99 | { "lv.any_eq.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x2 0x0", EFI, 0 }, |
| 100 | { "lv.any_eq.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x2 0x1", EFI, 0 }, |
| 101 | { "lv.any_ge.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x2 0x2", EFI, 0 }, |
| 102 | { "lv.any_ge.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x2 0x3", EFI, 0 }, |
| 103 | { "lv.any_gt.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x2 0x4", EFI, 0 }, |
| 104 | { "lv.any_gt.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x2 0x5", EFI, 0 }, |
| 105 | { "lv.any_le.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x2 0x6", EFI, 0 }, |
| 106 | { "lv.any_le.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x2 0x7", EFI, 0 }, |
| 107 | { "lv.any_lt.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x2 0x8", EFI, 0 }, |
| 108 | { "lv.any_lt.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x2 0x9", EFI, 0 }, |
| 109 | { "lv.any_ne.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x2 0xA", EFI, 0 }, |
| 110 | { "lv.any_ne.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x2 0xB", EFI, 0 }, |
| 111 | { "lv.add.b", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x3 0x0", EFI, 0 }, |
| 112 | { "lv.add.h", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x3 0x1", EFI, 0 }, |
| 113 | { "lv.adds.b", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x3 0x2", EFI, 0 }, |
| 114 | { "lv.adds.h", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x3 0x3", EFI, 0 }, |
| 115 | { "lv.addu.b", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x3 0x4", EFI, 0 }, |
| 116 | { "lv.addu.h", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x3 0x5", EFI, 0 }, |
| 117 | { "lv.addus.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x3 0x6", EFI, 0 }, |
| 118 | { "lv.addus.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x3 0x7", EFI, 0 }, |
| 119 | { "lv.and", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x3 0x8", EFI, 0 }, |
| 120 | { "lv.avg.b", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x3 0x9", EFI, 0 }, |
| 121 | { "lv.avg.h", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x3 0xA", EFI, 0 }, |
| 122 | { "lv.cmp_eq.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x4 0x0", EFI, 0 }, |
| 123 | { "lv.cmp_eq.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x4 0x1", EFI, 0 }, |
| 124 | { "lv.cmp_ge.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x4 0x2", EFI, 0 }, |
| 125 | { "lv.cmp_ge.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x4 0x3", EFI, 0 }, |
| 126 | { "lv.cmp_gt.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x4 0x4", EFI, 0 }, |
| 127 | { "lv.cmp_gt.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x4 0x5", EFI, 0 }, |
| 128 | { "lv.cmp_le.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x4 0x6", EFI, 0 }, |
| 129 | { "lv.cmp_le.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x4 0x7", EFI, 0 }, |
| 130 | { "lv.cmp_lt.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x4 0x8", EFI, 0 }, |
| 131 | { "lv.cmp_lt.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x4 0x9", EFI, 0 }, |
| 132 | { "lv.cmp_ne.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x4 0xA", EFI, 0 }, |
| 133 | { "lv.cmp_ne.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x4 0xB", EFI, 0 }, |
| 134 | { "lv.madds.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x5 0x4", EFI, 0 }, |
| 135 | { "lv.max.b", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x5 0x5", EFI, 0 }, |
| 136 | { "lv.max.h", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x5 0x6", EFI, 0 }, |
| 137 | { "lv.merge.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x5 0x7", EFI, 0 }, |
| 138 | { "lv.merge.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x5 0x8", EFI, 0 }, |
| 139 | { "lv.min.b", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x5 0x9", EFI, 0 }, |
| 140 | { "lv.min.h", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x5 0xA", EFI, 0 }, |
| 141 | { "lv.msubs.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x5 0xB", EFI, 0 }, |
| 142 | { "lv.muls.h", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x5 0xC", EFI, 0 }, |
| 143 | { "lv.nand", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x5 0xD", EFI, 0 }, |
| 144 | { "lv.nor", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x5 0xE", EFI, 0 }, |
| 145 | { "lv.or", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x5 0xF", EFI, 0 }, |
| 146 | { "lv.pack.b", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x6 0x0", EFI, 0 }, |
| 147 | { "lv.pack.h", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x6 0x1", EFI, 0 }, |
| 148 | { "lv.packs.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x6 0x2", EFI, 0 }, |
| 149 | { "lv.packs.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x6 0x3", EFI, 0 }, |
| 150 | { "lv.packus.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x6 0x4", EFI, 0 }, |
| 151 | { "lv.packus.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x6 0x5", EFI, 0 }, |
| 152 | { "lv.perm.n", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x6 0x6", EFI, 0 }, |
| 153 | { "lv.rl.b", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x6 0x7", EFI, 0 }, |
| 154 | { "lv.rl.h", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x6 0x8", EFI, 0 }, |
| 155 | { "lv.sll.b", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x6 0x9", EFI, 0 }, |
| 156 | { "lv.sll.h", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x6 0xA", EFI, 0 }, |
| 157 | { "lv.sll", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x6 0xB", EFI, 0 }, |
| 158 | { "lv.srl.b", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x6 0xC", EFI, 0 }, |
| 159 | { "lv.srl.h", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x6 0xD", EFI, 0 }, |
| 160 | { "lv.sra.b", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x6 0xE", EFI, 0 }, |
| 161 | { "lv.sra.h", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x6 0xF", EFI, 0 }, |
| 162 | { "lv.srl", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x7 0x0", EFI, 0 }, |
| 163 | { "lv.sub.b", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x7 0x1", EFI, 0 }, |
| 164 | { "lv.sub.h", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x7 0x2", EFI, 0 }, |
| 165 | { "lv.subs.b", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x7 0x3", EFI, 0 }, |
| 166 | { "lv.subs.h", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x7 0x4", EFI, 0 }, |
| 167 | { "lv.subu.b", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x7 0x5", EFI, 0 }, |
| 168 | { "lv.subu.h", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x7 0x6", EFI, 0 }, |
| 169 | { "lv.subus.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x7 0x7", EFI, 0 }, |
| 170 | { "lv.subus.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x7 0x8", EFI, 0 }, |
| 171 | { "lv.unpack.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x7 0x9", EFI, 0 }, |
| 172 | { "lv.unpack.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x7 0xA", EFI, 0 }, |
| 173 | { "lv.xor", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x7 0xB", EFI, 0 }, |
| 174 | { "lv.cust1", "", "00 0xA ----- ----- ---- ---- 0xC ----", EFI, 0 }, |
| 175 | { "lv.cust2", "", "00 0xA ----- ----- ---- ---- 0xD ----", EFI, 0 }, |
| 176 | { "lv.cust3", "", "00 0xA ----- ----- ---- ---- 0xE ----", EFI, 0 }, |
| 177 | { "lv.cust4", "", "00 0xA ----- ----- ---- ---- 0xF ----", EFI, 0 }, |
| 178 | |
| 179 | { "lf.add.s", "rD,rA,rB", "00 0xB DDDDD AAAAA BBBB B--- 0x1 0x0", EFI, 0 }, |
| 180 | { "lf.sub.s", "rD,rA,rB", "00 0xB DDDDD AAAAA BBBB B--- 0x1 0x1", EFI, 0 }, |
| 181 | { "lf.mul.s", "rD,rA,rB", "00 0xB DDDDD AAAAA BBBB B--- 0x1 0x2", EFI, 0 }, |
| 182 | { "lf.div.s", "rD,rA,rB", "00 0xB DDDDD AAAAA BBBB B--- 0x1 0x3", EFI, 0 }, |
| 183 | { "lf.itof.s", "rD,rA", "00 0xB DDDDD AAAAA BBBB B--- 0x1 0x4", EFI, 0 }, |
| 184 | { "lf.ftoi.s", "rD,rA", "00 0xB DDDDD AAAAA BBBB B--- 0x1 0x5", EFI, 0 }, |
| 185 | { "lf.rem.s", "rD,rA,rB", "00 0xB DDDDD AAAAA BBBB B--- 0x1 0x6", EFI, 0 }, |
| 186 | { "lf.madd.s", "rD,rA,rB", "00 0xB DDDDD AAAAA BBBB B--- 0x1 0x7", EFI, 0 }, |
| 187 | { "lf.sfeq.s", "rA,rB", "00 0xB ----- AAAAA BBBB B--- 0x1 0x8", EFI, 0 }, |
| 188 | { "lf.sfne.s", "rA,rB", "00 0xB ----- AAAAA BBBB B--- 0x1 0x9", EFI, 0 }, |
| 189 | { "lf.sfgt.s", "rA,rB", "00 0xB ----- AAAAA BBBB B--- 0x1 0xA", EFI, 0 }, |
| 190 | { "lf.sfge.s", "rA,rB", "00 0xB ----- AAAAA BBBB B--- 0x1 0xB", EFI, 0 }, |
| 191 | { "lf.sflt.s", "rA,rB", "00 0xB ----- AAAAA BBBB B--- 0x1 0xC", EFI, 0 }, |
| 192 | { "lf.sfle.s", "rA,rB", "00 0xB ----- AAAAA BBBB B--- 0x1 0xD", EFI, 0 }, |
| 193 | { "lf.cust1.s", "", "00 0xB ----- ----- ---- ---- 0xE ----", EFI, 0 }, |
| 194 | |
| 195 | { "lf.add.d", "rD,rA,rB", "00 0xC DDDDD AAAAA BBBB B--- 0x1 0x0", EFI, 0 }, |
| 196 | { "lf.sub.d", "rD,rA,rB", "00 0xC DDDDD AAAAA BBBB B--- 0x1 0x1", EFI, 0 }, |
| 197 | { "lf.mul.d", "rD,rA,rB", "00 0xC DDDDD AAAAA BBBB B--- 0x1 0x2", EFI, 0 }, |
| 198 | { "lf.div.d", "rD,rA,rB", "00 0xC DDDDD AAAAA BBBB B--- 0x1 0x3", EFI, 0 }, |
| 199 | { "lf.itof.d", "rD,rA", "00 0xC DDDDD AAAAA BBBB B--- 0x1 0x4", EFI, 0 }, |
| 200 | { "lf.ftoi.d", "rD,rA", "00 0xC DDDDD AAAAA BBBB B--- 0x1 0x5", EFI, 0 }, |
| 201 | { "lf.rem.d", "rD,rA,rB", "00 0xC DDDDD AAAAA BBBB B--- 0x1 0x6", EFI, 0 }, |
| 202 | { "lf.madd.d", "rD,rA,rB", "00 0xC DDDDD AAAAA BBBB B--- 0x1 0x7", EFI, 0 }, |
| 203 | { "lf.sfeq.d", "rA,rB", "00 0xC ----- AAAAA BBBB B--- 0x1 0x8", EFI, 0 }, |
| 204 | { "lf.sfne.d", "rA,rB", "00 0xC ----- AAAAA BBBB B--- 0x1 0x9", EFI, 0 }, |
| 205 | { "lf.sfgt.d", "rA,rB", "00 0xC ----- AAAAA BBBB B--- 0x1 0xA", EFI, 0 }, |
| 206 | { "lf.sfge.d", "rA,rB", "00 0xC ----- AAAAA BBBB B--- 0x1 0xB", EFI, 0 }, |
| 207 | { "lf.sflt.d", "rA,rB", "00 0xC ----- AAAAA BBBB B--- 0x1 0xC", EFI, 0 }, |
| 208 | { "lf.sfle.d", "rA,rB", "00 0xC ----- AAAAA BBBB B--- 0x1 0xD", EFI, 0 }, |
| 209 | { "lf.cust1.d", "", "00 0xC ----- ----- ---- ---- 0xE ----", EFI, 0 }, |
| 210 | |
| 211 | { "lvf.ld", "rD,0(rA)", "00 0xD DDDDD AAAAA ---- ---- 0x0 0x0", EFI, 0 }, |
| 212 | { "lvf.lw", "rD,0(rA)", "00 0xD DDDDD AAAAA ---- ---- 0x0 0x1", EFI, 0 }, |
| 213 | { "lvf.sd", "0(rA),rB", "00 0xD ----- AAAAA BBBB B--- 0x1 0x0", EFI, 0 }, |
| 214 | { "lvf.sw", "0(rA),rB", "00 0xD ----- AAAAA BBBB B--- 0x1 0x1", EFI, 0 }, |
| 215 | |
| 216 | { "l.jr", "rB", "01 0x1 ----- ----- BBBB B--- ---- ----", EF(l_jr), OR32_IF_DELAY }, |
| 217 | { "l.jalr", "rB", "01 0x2 ----- ----- BBBB B--- ---- ----", EF(l_jalr), OR32_IF_DELAY }, |
| 218 | { "l.maci", "rB,I", "01 0x3 IIIII ----- BBBB BIII IIII IIII", EF(l_mac), 0 }, |
| 219 | { "l.cust1", "", "01 0xC ----- ----- ---- ---- ---- ----", EF(l_cust1), 0 }, |
| 220 | { "l.cust2", "", "01 0xD ----- ----- ---- ---- ---- ----", EF(l_cust2), 0 }, |
| 221 | { "l.cust3", "", "01 0xE ----- ----- ---- ---- ---- ----", EF(l_cust3), 0 }, |
| 222 | { "l.cust4", "", "01 0xF ----- ----- ---- ---- ---- ----", EF(l_cust4), 0 }, |
| 223 | |
| 224 | { "l.ld", "rD,I(rA)", "10 0x0 DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 }, |
| 225 | { "l.lwz", "rD,I(rA)", "10 0x1 DDDDD AAAAA IIII IIII IIII IIII", EF(l_lwz), 0 }, |
| 226 | { "l.lws", "rD,I(rA)", "10 0x2 DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 }, |
| 227 | { "l.lbz", "rD,I(rA)", "10 0x3 DDDDD AAAAA IIII IIII IIII IIII", EF(l_lbz), 0 }, |
| 228 | { "l.lbs", "rD,I(rA)", "10 0x4 DDDDD AAAAA IIII IIII IIII IIII", EF(l_lbs), 0 }, |
| 229 | { "l.lhz", "rD,I(rA)", "10 0x5 DDDDD AAAAA IIII IIII IIII IIII", EF(l_lhz), 0 }, |
| 230 | { "l.lhs", "rD,I(rA)", "10 0x6 DDDDD AAAAA IIII IIII IIII IIII", EF(l_lhs), 0 }, |
| 231 | |
| 232 | { "l.addi", "rD,rA,I", "10 0x7 DDDDD AAAAA IIII IIII IIII IIII", EF(l_add), 0 }, |
| 233 | { "l.addic", "rD,rA,I", "10 0x8 DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 }, |
| 234 | { "l.andi", "rD,rA,K", "10 0x9 DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_and), 0 }, |
| 235 | { "l.ori", "rD,rA,K", "10 0xA DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_or), 0 }, |
| 236 | { "l.xori", "rD,rA,I", "10 0xB DDDDD AAAAA IIII IIII IIII IIII", EF(l_xor), 0 }, |
| 237 | { "l.muli", "rD,rA,I", "10 0xC DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 }, |
| 238 | { "l.mfspr", "rD,rA,K", "10 0xD DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_mfspr), 0 }, |
| 239 | { "l.slli", "rD,rA,L", "10 0xE DDDDD AAAAA ---- ---- 00LL LLLL", EF(l_sll), 0 }, |
| 240 | { "l.srli", "rD,rA,L", "10 0xE DDDDD AAAAA ---- ---- 01LL LLLL", EF(l_srl), 0 }, |
| 241 | { "l.srai", "rD,rA,L", "10 0xE DDDDD AAAAA ---- ---- 10LL LLLL", EF(l_sra), 0 }, |
| 242 | { "l.rori", "rD,rA,L", "10 0xE DDDDD AAAAA ---- ---- 11LL LLLL", EFI, 0 }, |
| 243 | |
| 244 | { "l.sfeqi", "rA,I", "10 0xF 00000 AAAAA IIII IIII IIII IIII", EF(l_sfeq), OR32_W_FLAG }, |
| 245 | { "l.sfnei", "rA,I", "10 0xF 00001 AAAAA IIII IIII IIII IIII", EF(l_sfne), OR32_W_FLAG }, |
| 246 | { "l.sfgtui", "rA,I", "10 0xF 00010 AAAAA IIII IIII IIII IIII", EF(l_sfgtu), OR32_W_FLAG }, |
| 247 | { "l.sfgeui", "rA,I", "10 0xF 00011 AAAAA IIII IIII IIII IIII", EF(l_sfgeu), OR32_W_FLAG }, |
| 248 | { "l.sfltui", "rA,I", "10 0xF 00100 AAAAA IIII IIII IIII IIII", EF(l_sfltu), OR32_W_FLAG }, |
| 249 | { "l.sfleui", "rA,I", "10 0xF 00101 AAAAA IIII IIII IIII IIII", EF(l_sfleu), OR32_W_FLAG }, |
| 250 | { "l.sfgtsi", "rA,I", "10 0xF 01010 AAAAA IIII IIII IIII IIII", EF(l_sfgts), OR32_W_FLAG }, |
| 251 | { "l.sfgesi", "rA,I", "10 0xF 01011 AAAAA IIII IIII IIII IIII", EF(l_sfges), OR32_W_FLAG }, |
| 252 | { "l.sfltsi", "rA,I", "10 0xF 01100 AAAAA IIII IIII IIII IIII", EF(l_sflts), OR32_W_FLAG }, |
| 253 | { "l.sflesi", "rA,I", "10 0xF 01101 AAAAA IIII IIII IIII IIII", EF(l_sfles), OR32_W_FLAG }, |
| 254 | |
| 255 | { "l.mtspr", "rA,rB,K", "11 0x0 KKKKK AAAAA BBBB BKKK KKKK KKKK", EF(l_mtspr), 0 }, |
| 256 | { "l.mac", "rA,rB", "11 0x1 ----- AAAAA BBBB B--- ---- 0x1", EF(l_mac), 0 }, /*MM*/ |
| 257 | { "l.msb", "rA,rB", "11 0x1 ----- AAAAA BBBB B--- ---- 0x2", EF(l_msb), 0 }, /*MM*/ |
| 258 | |
| 259 | { "l.sd", "I(rA),rB", "11 0x4 IIIII AAAAA BBBB BIII IIII IIII", EFI, 0 }, |
| 260 | { "l.sw", "I(rA),rB", "11 0x5 IIIII AAAAA BBBB BIII IIII IIII", EF(l_sw), 0 }, |
| 261 | { "l.sb", "I(rA),rB", "11 0x6 IIIII AAAAA BBBB BIII IIII IIII", EF(l_sb), 0 }, |
| 262 | { "l.sh", "I(rA),rB", "11 0x7 IIIII AAAAA BBBB BIII IIII IIII", EF(l_sh), 0 }, |
| 263 | |
| 264 | { "l.add", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 ---- 0x0", EF(l_add), 0 }, |
| 265 | { "l.addc", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 ---- 0x1", EFI, 0 }, |
| 266 | { "l.sub", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 ---- 0x2", EF(l_sub), 0 }, |
| 267 | { "l.and", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 ---- 0x3", EF(l_and), 0 }, |
| 268 | { "l.or", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 ---- 0x4", EF(l_or), 0 }, |
| 269 | { "l.xor", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 ---- 0x5", EF(l_xor), 0 }, |
| 270 | { "l.mul", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-11 ---- 0x6", EF(l_mul), 0 }, |
| 271 | |
| 272 | { "l.sll", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 00-- 0x8", EF(l_sll), 0 }, |
| 273 | { "l.srl", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 01-- 0x8", EF(l_srl), 0 }, |
| 274 | { "l.sra", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 10-- 0x8", EF(l_sra), 0 }, |
| 275 | { "l.ror", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 11-- 0x8", EFI, 0 }, |
| 276 | { "l.div", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 ---- 0x9", EF(l_div), 0 }, |
| 277 | { "l.divu", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 ---- 0xA", EF(l_divu), 0 }, |
| 278 | { "l.mulu", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-11 ---- 0xB", EFI, 0 }, |
| 279 | { "l.exths", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 00-- 0xC", EFI, 0 }, |
| 280 | { "l.extbs", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 01-- 0xC", EFI, 0 }, |
| 281 | { "l.exthz", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 10-- 0xC", EFI, 0 }, |
| 282 | { "l.extbz", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 11-- 0xC", EFI, 0 }, |
| 283 | { "l.extws", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 00-- 0xD", EFI, 0 }, |
| 284 | { "l.extwz", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 01-- 0xD", EFI, 0 }, |
| 285 | { "l.cmov", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 ---- 0xE", EFI, 0 }, |
| 286 | { "l.ff1", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 ---- 0xF", EFI, 0 }, |
| 287 | |
| 288 | { "l.sfeq", "rA,rB", "11 0x9 00000 AAAAA BBBB B--- ---- ----", EF(l_sfeq), OR32_W_FLAG }, |
| 289 | { "l.sfne", "rA,rB", "11 0x9 00001 AAAAA BBBB B--- ---- ----", EF(l_sfne), OR32_W_FLAG }, |
| 290 | { "l.sfgtu", "rA,rB", "11 0x9 00010 AAAAA BBBB B--- ---- ----", EF(l_sfgtu), OR32_W_FLAG }, |
| 291 | { "l.sfgeu", "rA,rB", "11 0x9 00011 AAAAA BBBB B--- ---- ----", EF(l_sfgeu), OR32_W_FLAG }, |
| 292 | { "l.sfltu", "rA,rB", "11 0x9 00100 AAAAA BBBB B--- ---- ----", EF(l_sfltu), OR32_W_FLAG }, |
| 293 | { "l.sfleu", "rA,rB", "11 0x9 00101 AAAAA BBBB B--- ---- ----", EF(l_sfleu), OR32_W_FLAG }, |
| 294 | { "l.sfgts", "rA,rB", "11 0x9 01010 AAAAA BBBB B--- ---- ----", EF(l_sfgts), OR32_W_FLAG }, |
| 295 | { "l.sfges", "rA,rB", "11 0x9 01011 AAAAA BBBB B--- ---- ----", EF(l_sfges), OR32_W_FLAG }, |
| 296 | { "l.sflts", "rA,rB", "11 0x9 01100 AAAAA BBBB B--- ---- ----", EF(l_sflts), OR32_W_FLAG }, |
| 297 | { "l.sfles", "rA,rB", "11 0x9 01101 AAAAA BBBB B--- ---- ----", EF(l_sfles), OR32_W_FLAG }, |
| 298 | |
| 299 | { "l.cust5", "", "11 0xC ----- ----- ---- ---- ---- ----", EFI, 0 }, |
| 300 | { "l.cust6", "", "11 0xD ----- ----- ---- ---- ---- ----", EFI, 0 }, |
| 301 | { "l.cust7", "", "11 0xE ----- ----- ---- ---- ---- ----", EFI, 0 }, |
| 302 | { "l.cust8", "", "11 0xF ----- ----- ---- ---- ---- ----", EFI, 0 }, |
| 303 | |
| 304 | /* This section should not be defined in or1ksim, since it contains duplicates, |
| 305 | which would cause machine builder to complain. */ |
| 306 | #ifdef HAS_CUST |
| 307 | { "l.cust5_1", "rD", "11 0xC DDDDD ----- ---- ---- ---- ----", EFI, 0 }, |
| 308 | { "l.cust5_2", "rD,rA" , "11 0xC DDDDD AAAAA ---- ---- ---- ----", EFI, 0 }, |
| 309 | { "l.cust5_3", "rD,rA,rB", "11 0xC DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 }, |
| 310 | |
| 311 | { "l.cust6_1", "rD", "11 0xD DDDDD ----- ---- ---- ---- ----", EFI, 0 }, |
| 312 | { "l.cust6_2", "rD,rA" , "11 0xD DDDDD AAAAA ---- ---- ---- ----", EFI, 0 }, |
| 313 | { "l.cust6_3", "rD,rA,rB", "11 0xD DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 }, |
| 314 | |
| 315 | { "l.cust7_1", "rD", "11 0xE DDDDD ----- ---- ---- ---- ----", EFI, 0 }, |
| 316 | { "l.cust7_2", "rD,rA" , "11 0xE DDDDD AAAAA ---- ---- ---- ----", EFI, 0 }, |
| 317 | { "l.cust7_3", "rD,rA,rB", "11 0xE DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 }, |
| 318 | |
| 319 | { "l.cust8_1", "rD", "11 0xF DDDDD ----- ---- ---- ---- ----", EFI, 0 }, |
| 320 | { "l.cust8_2", "rD,rA" , "11 0xF DDDDD AAAAA ---- ---- ---- ----", EFI, 0 }, |
| 321 | { "l.cust8_3", "rD,rA,rB", "11 0xF DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 }, |
| 322 | #endif |
| 323 | |
| 324 | /* Dummy entry, not included in num_opcodes. This |
| 325 | lets code examine entry i+1 without checking |
| 326 | if we've run off the end of the table. */ |
| 327 | { "", "", "", EFI, 0 } |
| 328 | }; |
| 329 | |
| 330 | #undef EFI |
| 331 | #undef EFN |
| 332 | #undef EF |
| 333 | |
| 334 | /* Define dummy, if debug is not defined. */ |
| 335 | |
| 336 | #if !defined HAS_DEBUG |
| 337 | static void ATTRIBUTE_PRINTF_2 |
| 338 | debug (int level ATTRIBUTE_UNUSED, const char *format ATTRIBUTE_UNUSED, ...) |
| 339 | { |
| 340 | } |
| 341 | #endif |
| 342 | |
| 343 | const unsigned int or32_num_opcodes = ((sizeof(or32_opcodes)) / (sizeof(struct or32_opcode))) - 1; |
| 344 | |
| 345 | /* Calculates instruction length in bytes. Always 4 for OR32. */ |
| 346 | |
| 347 | int |
| 348 | insn_len (int insn_index ATTRIBUTE_UNUSED) |
| 349 | { |
| 350 | return 4; |
| 351 | } |
| 352 | |
| 353 | /* Is individual insn's operand signed or unsigned? */ |
| 354 | |
| 355 | int |
| 356 | letter_signed (char l) |
| 357 | { |
| 358 | const struct or32_letter *pletter; |
| 359 | |
| 360 | for (pletter = or32_letters; pletter->letter != '\0'; pletter++) |
| 361 | if (pletter->letter == l) |
| 362 | return pletter->sign; |
| 363 | |
| 364 | printf ("letter_signed(%c): Unknown letter.\n", l); |
| 365 | return 0; |
| 366 | } |
| 367 | |
| 368 | /* Number of letters in the individual lettered operand. */ |
| 369 | |
| 370 | int |
| 371 | letter_range (char l) |
| 372 | { |
| 373 | const struct or32_opcode *pinsn; |
| 374 | char *enc; |
| 375 | int range = 0; |
| 376 | |
| 377 | for (pinsn = or32_opcodes; strlen (pinsn->name); pinsn ++) |
| 378 | { |
| 379 | if (strchr (pinsn->encoding,l)) |
| 380 | { |
| 381 | for (enc = pinsn->encoding; *enc != '\0'; enc ++) |
| 382 | if ((*enc == '0') && (*(enc + 1) == 'x')) |
| 383 | enc += 2; |
| 384 | else if (*enc == l) |
| 385 | range++; |
| 386 | return range; |
| 387 | } |
| 388 | } |
| 389 | |
| 390 | printf ("\nABORT: letter_range(%c): Never used letter.\n", l); |
| 391 | exit (1); |
| 392 | } |
| 393 | |
| 394 | /* MM: Returns index of given instruction name. */ |
| 395 | |
| 396 | int |
| 397 | insn_index (char *insn) |
| 398 | { |
| 399 | unsigned int i; |
| 400 | int found = -1; |
| 401 | |
| 402 | for (i = 0; i < or32_num_opcodes; i++) |
| 403 | if (!strcmp (or32_opcodes[i].name, insn)) |
| 404 | { |
| 405 | found = i; |
| 406 | break; |
| 407 | } |
| 408 | return found; |
| 409 | } |
| 410 | |
| 411 | const char * |
| 412 | insn_name (int index) |
| 413 | { |
| 414 | if (index >= 0 && index < (int) or32_num_opcodes) |
| 415 | return or32_opcodes[index].name; |
| 416 | else |
| 417 | return "???"; |
| 418 | } |
| 419 | |
| 420 | void |
| 421 | l_none (void) |
| 422 | { |
| 423 | } |
| 424 | |
| 425 | /* Finite automata for instruction decoding building code. */ |
| 426 | |
| 427 | /* Find simbols in encoding. */ |
| 428 | |
| 429 | static unsigned long |
| 430 | insn_extract (char param_ch, char *enc_initial) |
| 431 | { |
| 432 | char *enc; |
| 433 | unsigned long ret = 0; |
| 434 | unsigned opc_pos = 32; |
| 435 | |
| 436 | for (enc = enc_initial; *enc != '\0'; ) |
| 437 | if ((*enc == '0') && (*(enc + 1) == 'x')) |
| 438 | { |
| 439 | unsigned long tmp = strtol (enc+2, NULL, 16); |
| 440 | |
| 441 | opc_pos -= 4; |
| 442 | if (param_ch == '0' || param_ch == '1') |
| 443 | { |
| 444 | if (param_ch == '0') |
| 445 | tmp = 15 - tmp; |
| 446 | ret |= tmp << opc_pos; |
| 447 | } |
| 448 | enc += 3; |
| 449 | } |
| 450 | else |
| 451 | { |
| 452 | if (*enc == '0' || *enc == '1' || *enc == '-' || ISALPHA (*enc)) |
| 453 | { |
| 454 | opc_pos--; |
| 455 | if (param_ch == *enc) |
| 456 | ret |= 1 << opc_pos; |
| 457 | } |
| 458 | enc++; |
| 459 | } |
| 460 | return ret; |
| 461 | } |
| 462 | |
| 463 | #define MAX_AUTOMATA_SIZE 1200 |
| 464 | #define MAX_OP_TABLE_SIZE 1200 |
| 465 | #define LEAF_FLAG 0x80000000 |
| 466 | #define MAX_LEN 8 |
| 467 | |
| 468 | #ifndef MIN |
| 469 | #define MIN(x, y) ((x) < (y) ? (x) : (y)) |
| 470 | #endif |
| 471 | |
| 472 | unsigned long *automata; |
| 473 | int nuncovered; |
| 474 | int curpass = 0; |
| 475 | |
| 476 | /* MM: Struct that hold runtime build information about instructions. */ |
| 477 | struct temp_insn_struct |
| 478 | { |
| 479 | unsigned long insn; |
| 480 | unsigned long insn_mask; |
| 481 | int in_pass; |
| 482 | } *ti; |
| 483 | |
| 484 | struct insn_op_struct *op_data, **op_start; |
| 485 | |
| 486 | /* Recursive utility function used to find best match and to build automata. */ |
| 487 | |
| 488 | static unsigned long * |
| 489 | cover_insn (unsigned long * cur, int pass, unsigned int mask) |
| 490 | { |
| 491 | int best_first = 0, last_match = -1, ninstr = 0; |
| 492 | unsigned int best_len = 0; |
| 493 | unsigned int i; |
| 494 | unsigned long cur_mask = mask; |
| 495 | unsigned long *next; |
| 496 | |
| 497 | for (i = 0; i < or32_num_opcodes; i++) |
| 498 | if (ti[i].in_pass == pass) |
| 499 | { |
| 500 | cur_mask &= ti[i].insn_mask; |
| 501 | ninstr++; |
| 502 | last_match = i; |
| 503 | } |
| 504 | |
| 505 | debug (8, "%08X %08lX\n", mask, cur_mask); |
| 506 | |
| 507 | if (ninstr == 0) |
| 508 | return 0; |
| 509 | |
| 510 | if (ninstr == 1) |
| 511 | { |
| 512 | /* Leaf holds instruction index. */ |
| 513 | debug (8, "%li>I%i %s\n", |
| 514 | (long)(cur - automata), last_match, or32_opcodes[last_match].name); |
| 515 | |
| 516 | *cur = LEAF_FLAG | last_match; |
| 517 | cur++; |
| 518 | nuncovered--; |
| 519 | } |
| 520 | else |
| 521 | { |
| 522 | /* Find longest match. */ |
| 523 | for (i = 0; i < 32; i++) |
| 524 | { |
| 525 | unsigned int len; |
| 526 | |
| 527 | for (len = best_len + 1; len < MIN (MAX_LEN, 33 - i); len++) |
| 528 | { |
| 529 | unsigned long m = (1UL << ((unsigned long) len)) - 1; |
| 530 | |
| 531 | debug (9, " (%i(%08lX & %08lX>>%i = %08lX, %08lX)", |
| 532 | len,m, cur_mask, i, (cur_mask >> (unsigned)i), |
| 533 | (cur_mask >> (unsigned) i) & m); |
| 534 | |
| 535 | if ((m & (cur_mask >> (unsigned) i)) == m) |
| 536 | { |
| 537 | best_len = len; |
| 538 | best_first = i; |
| 539 | debug (9, "!"); |
| 540 | } |
| 541 | else |
| 542 | break; |
| 543 | } |
| 544 | } |
| 545 | |
| 546 | debug (9, "\n"); |
| 547 | |
| 548 | if (!best_len) |
| 549 | { |
| 550 | fprintf (stderr, "%i instructions match mask 0x%08X:\n", ninstr, mask); |
| 551 | |
| 552 | for (i = 0; i < or32_num_opcodes; i++) |
| 553 | if (ti[i].in_pass == pass) |
| 554 | fprintf (stderr, "%s ", or32_opcodes[i].name); |
| 555 | |
| 556 | fprintf (stderr, "\n"); |
| 557 | exit (1); |
| 558 | } |
| 559 | |
| 560 | debug (8, "%li> #### %i << %i (%i) ####\n", |
| 561 | (long)(cur - automata), best_len, best_first, ninstr); |
| 562 | |
| 563 | *cur = best_first; |
| 564 | cur++; |
| 565 | *cur = (1 << best_len) - 1; |
| 566 | cur++; |
| 567 | next = cur; |
| 568 | |
| 569 | /* Allocate space for pointers. */ |
| 570 | cur += 1 << best_len; |
| 571 | cur_mask = (1 << (unsigned long) best_len) - 1; |
| 572 | |
| 573 | for (i = 0; i < ((unsigned) 1 << best_len); i++) |
| 574 | { |
| 575 | unsigned int j; |
| 576 | unsigned long *c; |
| 577 | |
| 578 | curpass++; |
| 579 | for (j = 0; j < or32_num_opcodes; j++) |
| 580 | if (ti[j].in_pass == pass |
| 581 | && ((ti[j].insn >> best_first) & cur_mask) == (unsigned long) i |
| 582 | && ((ti[j].insn_mask >> best_first) & cur_mask) == cur_mask) |
| 583 | ti[j].in_pass = curpass; |
| 584 | |
| 585 | debug (9, "%08X %08lX %i\n", mask, cur_mask, best_first); |
| 586 | c = cover_insn (cur, curpass, mask & (~(cur_mask << best_first))); |
| 587 | if (c) |
| 588 | { |
| 589 | debug (8, "%li> #%X -> %lu\n", (long)(next - automata), i, |
| 590 | (unsigned long)(cur - automata)); |
| 591 | *next = cur - automata; |
| 592 | cur = c; |
| 593 | } |
| 594 | else |
| 595 | { |
| 596 | debug (8, "%li> N/A\n", (long)(next - automata)); |
| 597 | *next = 0; |
| 598 | } |
| 599 | next++; |
| 600 | } |
| 601 | } |
| 602 | return cur; |
| 603 | } |
| 604 | |
| 605 | /* Returns number of nonzero bits. */ |
| 606 | |
| 607 | static int |
| 608 | num_ones (unsigned long value) |
| 609 | { |
| 610 | int c = 0; |
| 611 | |
| 612 | while (value) |
| 613 | { |
| 614 | if (value & 1) |
| 615 | c++; |
| 616 | value >>= 1; |
| 617 | } |
| 618 | return c; |
| 619 | } |
| 620 | |
| 621 | /* Utility function, which converts parameters from or32_opcode |
| 622 | format to more binary form. Parameters are stored in ti struct. */ |
| 623 | |
| 624 | static struct insn_op_struct * |
| 625 | parse_params (const struct or32_opcode * opcode, |
| 626 | struct insn_op_struct * cur) |
| 627 | { |
| 628 | char *args = opcode->args; |
| 629 | int i, type; |
| 630 | |
| 631 | i = 0; |
| 632 | type = 0; |
| 633 | /* In case we don't have any parameters, we add dummy read from r0. */ |
| 634 | |
| 635 | if (!(*args)) |
| 636 | { |
| 637 | cur->type = OPTYPE_REG | OPTYPE_OP | OPTYPE_LAST; |
| 638 | cur->data = 0; |
| 639 | debug (9, "#%08lX %08lX\n", cur->type, cur->data); |
| 640 | cur++; |
| 641 | return cur; |
| 642 | } |
| 643 | |
| 644 | while (*args != '\0') |
| 645 | { |
| 646 | if (*args == 'r') |
| 647 | { |
| 648 | args++; |
| 649 | type |= OPTYPE_REG; |
| 650 | } |
| 651 | else if (ISALPHA (*args)) |
| 652 | { |
| 653 | unsigned long arg; |
| 654 | |
| 655 | arg = insn_extract (*args, opcode->encoding); |
| 656 | debug (9, "%s : %08lX ------\n", opcode->name, arg); |
| 657 | if (letter_signed (*args)) |
| 658 | { |
| 659 | type |= OPTYPE_SIG; |
| 660 | type |= ((num_ones (arg) - 1) << OPTYPE_SBIT_SHR) & OPTYPE_SBIT; |
| 661 | } |
| 662 | |
| 663 | /* Split argument to sequences of consecutive ones. */ |
| 664 | while (arg) |
| 665 | { |
| 666 | int shr = 0; |
| 667 | unsigned long tmp = arg, mask = 0; |
| 668 | |
| 669 | while ((tmp & 1) == 0) |
| 670 | { |
| 671 | shr++; |
| 672 | tmp >>= 1; |
| 673 | } |
| 674 | while (tmp & 1) |
| 675 | { |
| 676 | mask++; |
| 677 | tmp >>= 1; |
| 678 | } |
| 679 | cur->type = type | shr; |
| 680 | cur->data = mask; |
| 681 | arg &= ~(((1 << mask) - 1) << shr); |
| 682 | debug (6, "|%08lX %08lX\n", cur->type, cur->data); |
| 683 | cur++; |
| 684 | } |
| 685 | args++; |
| 686 | } |
| 687 | else if (*args == '(') |
| 688 | { |
| 689 | /* Next param is displacement. |
| 690 | Later we will treat them as one operand. */ |
| 691 | cur--; |
| 692 | cur->type = type | cur->type | OPTYPE_DIS | OPTYPE_OP; |
| 693 | debug (9, ">%08lX %08lX\n", cur->type, cur->data); |
| 694 | cur++; |
| 695 | type = 0; |
| 696 | i++; |
| 697 | args++; |
| 698 | } |
| 699 | else if (*args == OPERAND_DELIM) |
| 700 | { |
| 701 | cur--; |
| 702 | cur->type = type | cur->type | OPTYPE_OP; |
| 703 | debug (9, ">%08lX %08lX\n", cur->type, cur->data); |
| 704 | cur++; |
| 705 | type = 0; |
| 706 | i++; |
| 707 | args++; |
| 708 | } |
| 709 | else if (*args == '0') |
| 710 | { |
| 711 | cur->type = type; |
| 712 | cur->data = 0; |
| 713 | debug (9, ">%08lX %08lX\n", cur->type, cur->data); |
| 714 | cur++; |
| 715 | type = 0; |
| 716 | i++; |
| 717 | args++; |
| 718 | } |
| 719 | else if (*args == ')') |
| 720 | args++; |
| 721 | else |
| 722 | { |
| 723 | fprintf (stderr, "%s : parse error in args.\n", opcode->name); |
| 724 | exit (1); |
| 725 | } |
| 726 | } |
| 727 | |
| 728 | cur--; |
| 729 | cur->type = type | cur->type | OPTYPE_OP | OPTYPE_LAST; |
| 730 | debug (9, "#%08lX %08lX\n", cur->type, cur->data); |
| 731 | cur++; |
| 732 | |
| 733 | return cur; |
| 734 | } |
| 735 | |
| 736 | /* Constructs new automata based on or32_opcodes array. */ |
| 737 | |
| 738 | void |
| 739 | build_automata (void) |
| 740 | { |
| 741 | unsigned int i; |
| 742 | unsigned long *end; |
| 743 | struct insn_op_struct *cur; |
| 744 | |
| 745 | automata = malloc (MAX_AUTOMATA_SIZE * sizeof (unsigned long)); |
| 746 | ti = malloc (sizeof (struct temp_insn_struct) * or32_num_opcodes); |
| 747 | |
| 748 | nuncovered = or32_num_opcodes; |
| 749 | printf ("Building automata... "); |
| 750 | /* Build temporary information about instructions. */ |
| 751 | for (i = 0; i < or32_num_opcodes; i++) |
| 752 | { |
| 753 | unsigned long ones, zeros; |
| 754 | char *encoding = or32_opcodes[i].encoding; |
| 755 | |
| 756 | ones = insn_extract('1', encoding); |
| 757 | zeros = insn_extract('0', encoding); |
| 758 | |
| 759 | ti[i].insn_mask = ones | zeros; |
| 760 | ti[i].insn = ones; |
| 761 | ti[i].in_pass = curpass = 0; |
| 762 | |
| 763 | /*debug(9, "%s: %s %08X %08X\n", or32_opcodes[i].name, |
| 764 | or32_opcodes[i].encoding, ti[i].insn_mask, ti[i].insn);*/ |
| 765 | } |
| 766 | |
| 767 | /* Until all are covered search for best criteria to separate them. */ |
| 768 | end = cover_insn (automata, curpass, 0xFFFFFFFF); |
| 769 | |
| 770 | if (end - automata > MAX_AUTOMATA_SIZE) |
| 771 | { |
| 772 | fprintf (stderr, "Automata too large. Increase MAX_AUTOMATA_SIZE."); |
| 773 | exit (1); |
| 774 | } |
| 775 | |
| 776 | printf ("done, num uncovered: %i/%i.\n", nuncovered, or32_num_opcodes); |
| 777 | printf ("Parsing operands data... "); |
| 778 | |
| 779 | op_data = malloc (MAX_OP_TABLE_SIZE * sizeof (struct insn_op_struct)); |
| 780 | op_start = malloc (or32_num_opcodes * sizeof (struct insn_op_struct *)); |
| 781 | cur = op_data; |
| 782 | |
| 783 | for (i = 0; i < or32_num_opcodes; i++) |
| 784 | { |
| 785 | op_start[i] = cur; |
| 786 | cur = parse_params (&or32_opcodes[i], cur); |
| 787 | |
| 788 | if (cur - op_data > MAX_OP_TABLE_SIZE) |
| 789 | { |
| 790 | fprintf (stderr, "Operands table too small, increase MAX_OP_TABLE_SIZE.\n"); |
| 791 | exit (1); |
| 792 | } |
| 793 | } |
| 794 | printf ("done.\n"); |
| 795 | } |
| 796 | |
| 797 | void |
| 798 | destruct_automata (void) |
| 799 | { |
| 800 | free (ti); |
| 801 | free (automata); |
| 802 | free (op_data); |
| 803 | free (op_start); |
| 804 | } |
| 805 | |
| 806 | /* Decodes instruction and returns instruction index. */ |
| 807 | |
| 808 | int |
| 809 | insn_decode (unsigned int insn) |
| 810 | { |
| 811 | unsigned long *a = automata; |
| 812 | int i; |
| 813 | |
| 814 | while (!(*a & LEAF_FLAG)) |
| 815 | { |
| 816 | unsigned int first = *a; |
| 817 | |
| 818 | debug (9, "%li ", (long)(a - automata)); |
| 819 | |
| 820 | a++; |
| 821 | i = (insn >> first) & *a; |
| 822 | a++; |
| 823 | if (!*(a + i)) |
| 824 | { |
| 825 | /* Invalid instruction found? */ |
| 826 | debug (9, "XXX\n"); |
| 827 | return -1; |
| 828 | } |
| 829 | a = automata + *(a + i); |
| 830 | } |
| 831 | |
| 832 | i = *a & ~LEAF_FLAG; |
| 833 | |
| 834 | debug (9, "%i\n", i); |
| 835 | |
| 836 | /* Final check - do we have direct match? |
| 837 | (based on or32_opcodes this should be the only possibility, |
| 838 | but in case of invalid/missing instruction we must perform a check) */ |
| 839 | if ((ti[i].insn_mask & insn) == ti[i].insn) |
| 840 | return i; |
| 841 | else |
| 842 | return -1; |
| 843 | } |
| 844 | |
| 845 | static char disassembled_str[50]; |
| 846 | char *disassembled = &disassembled_str[0]; |
| 847 | |
| 848 | /* Automagically does zero- or sign- extension and also finds correct |
| 849 | sign bit position if sign extension is correct extension. Which extension |
| 850 | is proper is figured out from letter description. */ |
| 851 | |
| 852 | static unsigned long |
| 853 | extend_imm (unsigned long imm, char l) |
| 854 | { |
| 855 | unsigned long mask; |
| 856 | int letter_bits; |
| 857 | |
| 858 | /* First truncate all bits above valid range for this letter |
| 859 | in case it is zero extend. */ |
| 860 | letter_bits = letter_range (l); |
| 861 | mask = (1 << letter_bits) - 1; |
| 862 | imm &= mask; |
| 863 | |
| 864 | /* Do sign extend if this is the right one. */ |
| 865 | if (letter_signed(l) && (imm >> (letter_bits - 1))) |
| 866 | imm |= (~mask); |
| 867 | |
| 868 | return imm; |
| 869 | } |
| 870 | |
| 871 | static unsigned long |
| 872 | or32_extract (char param_ch, char *enc_initial, unsigned long insn) |
| 873 | { |
| 874 | char *enc; |
| 875 | unsigned long ret = 0; |
| 876 | int opc_pos = 0; |
| 877 | int param_pos = 0; |
| 878 | |
| 879 | for (enc = enc_initial; *enc != '\0'; enc++) |
| 880 | if (*enc == param_ch) |
| 881 | { |
| 882 | if (enc - 2 >= enc_initial && (*(enc - 2) == '0') && (*(enc - 1) == 'x')) |
| 883 | continue; |
| 884 | else |
| 885 | param_pos++; |
| 886 | } |
| 887 | |
| 888 | #if DEBUG |
| 889 | printf ("or32_extract: %x ", param_pos); |
| 890 | #endif |
| 891 | opc_pos = 32; |
| 892 | |
| 893 | for (enc = enc_initial; *enc != '\0'; ) |
| 894 | if ((*enc == '0') && (*(enc + 1) == 'x')) |
| 895 | { |
| 896 | opc_pos -= 4; |
| 897 | if ((param_ch == '0') || (param_ch == '1')) |
| 898 | { |
| 899 | unsigned long tmp = strtol (enc, NULL, 16); |
| 900 | #if DEBUG |
| 901 | printf (" enc=%s, tmp=%x ", enc, tmp); |
| 902 | #endif |
| 903 | if (param_ch == '0') |
| 904 | tmp = 15 - tmp; |
| 905 | ret |= tmp << opc_pos; |
| 906 | } |
| 907 | enc += 3; |
| 908 | } |
| 909 | else if ((*enc == '0') || (*enc == '1')) |
| 910 | { |
| 911 | opc_pos--; |
| 912 | if (param_ch == *enc) |
| 913 | ret |= 1 << opc_pos; |
| 914 | enc++; |
| 915 | } |
| 916 | else if (*enc == param_ch) |
| 917 | { |
| 918 | opc_pos--; |
| 919 | param_pos--; |
| 920 | #if DEBUG |
| 921 | printf ("\n ret=%x opc_pos=%x, param_pos=%x\n", ret, opc_pos, param_pos); |
| 922 | #endif |
| 923 | if (ISLOWER (param_ch)) |
| 924 | ret -= ((insn >> opc_pos) & 0x1) << param_pos; |
| 925 | else |
| 926 | ret += ((insn >> opc_pos) & 0x1) << param_pos; |
| 927 | enc++; |
| 928 | } |
| 929 | else if (ISALPHA (*enc)) |
| 930 | { |
| 931 | opc_pos--; |
| 932 | enc++; |
| 933 | } |
| 934 | else if (*enc == '-') |
| 935 | { |
| 936 | opc_pos--; |
| 937 | enc++; |
| 938 | } |
| 939 | else |
| 940 | enc++; |
| 941 | |
| 942 | #if DEBUG |
| 943 | printf ("ret=%x\n", ret); |
| 944 | #endif |
| 945 | return ret; |
| 946 | } |
| 947 | |
| 948 | /* Print register. Used only by print_insn. */ |
| 949 | |
| 950 | static void |
| 951 | or32_print_register (char param_ch, char *encoding, unsigned long insn) |
| 952 | { |
| 953 | int regnum = or32_extract(param_ch, encoding, insn); |
| 954 | char s_regnum[20]; |
| 955 | |
| 956 | sprintf (s_regnum, "r%d", regnum); |
| 957 | strcat (disassembled, s_regnum); |
| 958 | } |
| 959 | |
| 960 | /* Print immediate. Used only by print_insn. */ |
| 961 | |
| 962 | static void |
| 963 | or32_print_immediate (char param_ch, char *encoding, unsigned long insn) |
| 964 | { |
| 965 | int imm = or32_extract (param_ch, encoding, insn); |
| 966 | char s_imm[20]; |
| 967 | |
| 968 | imm = extend_imm (imm, param_ch); |
| 969 | |
| 970 | if (letter_signed (param_ch)) |
| 971 | { |
| 972 | if (imm < 0) |
| 973 | sprintf (s_imm, "%d", imm); |
| 974 | else |
| 975 | sprintf (s_imm, "0x%x", imm); |
| 976 | } |
| 977 | else |
| 978 | sprintf (s_imm, "%#x", imm); |
| 979 | strcat (disassembled, s_imm); |
| 980 | } |
| 981 | |
| 982 | /* Disassemble one instruction from insn to disassemble. |
| 983 | Return the size of the instruction. */ |
| 984 | |
| 985 | int |
| 986 | disassemble_insn (unsigned long insn) |
| 987 | { |
| 988 | int index; |
| 989 | index = insn_decode (insn); |
| 990 | |
| 991 | if (index >= 0) |
| 992 | { |
| 993 | struct or32_opcode const *opcode = &or32_opcodes[index]; |
| 994 | char *s; |
| 995 | |
| 996 | sprintf (disassembled, "%s ", opcode->name); |
| 997 | for (s = opcode->args; *s != '\0'; ++s) |
| 998 | { |
| 999 | switch (*s) |
| 1000 | { |
| 1001 | case '\0': |
| 1002 | return 4; |
| 1003 | |
| 1004 | case 'r': |
| 1005 | or32_print_register (*++s, opcode->encoding, insn); |
| 1006 | break; |
| 1007 | |
| 1008 | default: |
| 1009 | if (strchr (opcode->encoding, *s)) |
| 1010 | or32_print_immediate (*s, opcode->encoding, insn); |
| 1011 | else |
| 1012 | { |
| 1013 | char s_encoding[2] = { *s, '\0' }; |
| 1014 | |
| 1015 | strcat (disassembled, s_encoding); |
| 1016 | } |
| 1017 | |
| 1018 | } |
| 1019 | } |
| 1020 | } |
| 1021 | else |
| 1022 | { |
| 1023 | char s_insn[20]; |
| 1024 | |
| 1025 | /* This used to be %8x for binutils. */ |
| 1026 | sprintf (s_insn, ".word 0x%08lx", insn); |
| 1027 | strcat (disassembled, s_insn); |
| 1028 | } |
| 1029 | |
| 1030 | return insn_len (insn); |
| 1031 | } |