1 /* $NetBSD: instr.h,v 1.4 2005/12/11 12:18:43 christos Exp $ */ 2 /* $FreeBSD$ */ 3 4 /*- 5 * SPDX-License-Identifier: BSD-3-Clause 6 * 7 * Copyright (c) 1992, 1993 8 * The Regents of the University of California. All rights reserved. 9 * 10 * This software was developed by the Computer Systems Engineering group 11 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 12 * contributed to Berkeley. 13 * 14 * All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by the University of 17 * California, Lawrence Berkeley Laboratory. 18 * 19 * Redistribution and use in source and binary forms, with or without 20 * modification, are permitted provided that the following conditions 21 * are met: 22 * 1. Redistributions of source code must retain the above copyright 23 * notice, this list of conditions and the following disclaimer. 24 * 2. Redistributions in binary form must reproduce the above copyright 25 * notice, this list of conditions and the following disclaimer in the 26 * documentation and/or other materials provided with the distribution. 27 * 3. Neither the name of the University nor the names of its contributors 28 * may be used to endorse or promote products derived from this software 29 * without specific prior written permission. 30 * 31 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 32 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 33 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 34 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 35 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 39 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 40 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 41 * SUCH DAMAGE. 42 * 43 * @(#)instr.h 8.1 (Berkeley) 6/11/93 44 */ 45 46 /* 47 * An instruction. 48 */ 49 union instr { 50 int i_int; /* as a whole */ 51 52 /* 53 * Any instruction type. 54 */ 55 struct { 56 u_int i_opcd:6; /* first-level decode */ 57 u_int :25; 58 u_int i_rc:1; 59 } i_any; 60 61 /* 62 * Format A 63 */ 64 struct { 65 u_int i_opcd:6; 66 u_int i_frt:5; 67 u_int i_fra:5; 68 u_int i_frb:5; 69 u_int i_frc:5; 70 u_int i_xo:5; 71 u_int i_rc:1; 72 } i_a; 73 74 /* 75 * Format B 76 */ 77 struct { 78 u_int i_opcd:6; 79 int i_bo:5; 80 int i_bi:5; 81 int i_bd:14; 82 int i_aa:1; 83 int i_lk:1; 84 } i_b; 85 86 /* 87 * Format D 88 */ 89 struct { 90 u_int i_opcd:6; 91 u_int i_rs:5; 92 u_int i_ra:5; 93 int i_d:16; 94 } i_d; 95 96 /* 97 * Format DE 98 */ 99 struct { 100 u_int i_opcd:6; 101 u_int i_rs:5; 102 u_int i_ra:5; 103 int i_d:12; 104 u_int i_xo:4; 105 } i_de; 106 107 /* 108 * Format I 109 */ 110 struct { 111 u_int i_opcd:6; 112 int i_li:24; 113 int i_aa:1; 114 int i_lk:1; 115 } i_i; 116 117 /* 118 * Format M 119 */ 120 struct { 121 u_int i_opcd:6; 122 u_int i_rs:5; 123 u_int i_ra:5; 124 u_int i_rb:5; 125 int i_mb:5; 126 int i_me:5; 127 u_int i_rc:1; 128 } i_m; 129 130 /* 131 * Format MD 132 */ 133 struct { 134 u_int i_opcd:6; 135 u_int i_rs:5; 136 u_int i_ra:5; 137 u_int i_rb:5; 138 int i_sh1_5:5; 139 int i_mb:6; 140 u_int i_xo:3; 141 int i_sh0:2; 142 u_int i_rc:1; 143 } i_md; 144 145 /* 146 * Format MDS 147 */ 148 struct { 149 u_int i_opcd:6; 150 u_int i_rs:5; 151 u_int i_ra:5; 152 u_int i_rb:5; 153 int i_sh:5; 154 int i_mb:6; 155 u_int i_xo:4; 156 u_int i_rc:1; 157 } i_mds; 158 159 /* 160 * Format S 161 */ 162 struct { 163 u_int i_opcd:6; 164 int :24; 165 int i_i:1; 166 int :1; 167 } i_s; 168 169 /* 170 * Format X 171 */ 172 struct { 173 u_int i_opcd:6; 174 u_int i_rs:5; 175 u_int i_ra:5; 176 u_int i_rb:5; 177 u_int i_xo:10; 178 u_int i_rc:1; 179 } i_x; 180 181 /* 182 * Format XFL 183 */ 184 struct { 185 u_int i_opcd:6; 186 int :1; 187 int i_flm:8; 188 int :1; 189 int i_frb:5; 190 u_int i_xo:10; 191 int :1; 192 } i_xfl; 193 194 /* 195 * Format XFX 196 */ 197 struct { 198 u_int i_opcd:6; 199 int i_dcrn:10; 200 u_int i_xo:10; 201 int :1; 202 } i_xfx; 203 204 /* 205 * Format XL 206 */ 207 struct { 208 u_int i_opcd:6; 209 int i_bt:5; 210 int i_ba:5; 211 int i_bb:5; 212 u_int i_xo:10; 213 int i_lk:1; 214 } i_xl; 215 216 /* 217 * Format XS 218 */ 219 struct { 220 u_int i_opcd:6; 221 u_int i_rs:5; 222 u_int i_ra:5; 223 int i_sh0_4:5; 224 u_int i_xo:9; 225 int i_sh5:1; 226 u_int i_rc:1; 227 } i_xs; 228 229 }; 230 231 #define i_rt i_rs 232 233 /* 234 * Primary opcode numbers: 235 */ 236 237 #define OPC_TDI 0x02 238 #define OPC_TWI 0x03 239 #define OPC_MULLI 0x07 240 #define OPC_SUBFIC 0x08 241 #define OPC_BCE 0x09 242 #define OPC_CMPLI 0x0a 243 #define OPC_CMPI 0x0b 244 #define OPC_ADDIC 0x0c 245 #define OPC_ADDIC_DOT 0x0d 246 #define OPC_ADDI 0x0e 247 #define OPC_ADDIS 0x0f 248 #define OPC_BC 0x10 249 #define OPC_SC 0x11 250 #define OPC_B 0x12 251 #define OPC_branch_19 0x13 252 #define OPC_RLWIMI 0x14 253 #define OPC_RLWINM 0x15 254 #define OPC_BE 0x16 255 #define OPC_RLWNM 0x17 256 #define OPC_ORI 0x18 257 #define OPC_ORIS 0x19 258 #define OPC_XORI 0x1a 259 #define OPC_XORIS 0x1b 260 #define OPC_ANDI 0x1c 261 #define OPC_ANDIS 0x1d 262 #define OPC_dwe_rot_30 0x1e 263 #define OPC_integer_31 0x1f 264 #define OPC_LWZ 0x20 265 #define OPC_LWZU 0x21 266 #define OPC_LBZ 0x22 267 #define OPC_LBZU 0x23 268 #define OPC_STW 0x24 269 #define OPC_STWU 0x25 270 #define OPC_STB 0x26 271 #define OPC_STBU 0x27 272 #define OPC_LHZ 0x28 273 #define OPC_LHZU 0x29 274 #define OPC_LHA 0x2a 275 #define OPC_LHAU 0x2b 276 #define OPC_STH 0x2c 277 #define OPC_STHU 0x2d 278 #define OPC_LMW 0x2e 279 #define OPC_STMW 0x2f 280 #define OPC_LFS 0x30 281 #define OPC_LFSU 0x31 282 #define OPC_LFD 0x32 283 #define OPC_LFDU 0x33 284 #define OPC_STFS 0x34 285 #define OPC_STFSU 0x35 286 #define OPC_STFD 0x36 287 #define OPC_STFDU 0x37 288 #define OPC_load_st_58 0x3a 289 #define OPC_sp_fp_59 0x3b 290 #define OPC_load_st_62 0x3e 291 #define OPC_dp_fp_63 0x3f 292 293 /* 294 * Opcode 31 sub-types (FP only) 295 */ 296 #define OPC31_TW 0x004 297 #define OPC31_LFSX 0x217 298 #define OPC31_LFSUX 0x237 299 #define OPC31_LFDX 0x257 300 #define OPC31_LFDUX 0x277 301 #define OPC31_STFSX 0x297 302 #define OPC31_STFSUX 0x2b7 303 #define OPC31_STFDX 0x2d7 304 #define OPC31_STFDUX 0x2f7 305 #define OPC31_STFIWX 0x3d7 306 307 /* Mask for all valid indexed FP load/store ops (except stfiwx) */ 308 #define OPC31_FPMASK 0x31f 309 #define OPC31_FPOP 0x217 310 311 /* 312 * Opcode 59 sub-types: 313 */ 314 315 #define OPC59_FDIVS 0x12 316 #define OPC59_FSUBS 0x14 317 #define OPC59_FADDS 0x15 318 #define OPC59_FSQRTS 0x16 319 #define OPC59_FRES 0x18 320 #define OPC59_FMULS 0x19 321 #define OPC59_FMSUBS 0x1c 322 #define OPC59_FMADDS 0x1d 323 #define OPC59_FNMSUBS 0x1e 324 #define OPC59_FNMADDS 0x1f 325 326 /* 327 * Opcode 62 sub-types: 328 */ 329 #define OPC62_LDE 0x0 330 #define OPC62_LDEU 0x1 331 #define OPC62_LFSE 0x4 332 #define OPC62_LFSEU 0x5 333 #define OPC62_LFDE 0x6 334 #define OPC62_LFDEU 0x7 335 #define OPC62_STDE 0x8 336 #define OPC62_STDEU 0x9 337 #define OPC62_STFSE 0xc 338 #define OPC62_STFSEU 0xd 339 #define OPC62_STFDE 0xe 340 #define OPC62_STFDEU 0xf 341 342 /* 343 * Opcode 63 sub-types: 344 * 345 * (The first group are masks....) 346 */ 347 348 #define OPC63M_MASK 0x10 349 #define OPC63M_FDIV 0x12 350 #define OPC63M_FSUB 0x14 351 #define OPC63M_FADD 0x15 352 #define OPC63M_FSQRT 0x16 353 #define OPC63M_FSEL 0x17 354 #define OPC63M_FMUL 0x19 355 #define OPC63M_FRSQRTE 0x1a 356 #define OPC63M_FMSUB 0x1c 357 #define OPC63M_FMADD 0x1d 358 #define OPC63M_FNMSUB 0x1e 359 #define OPC63M_FNMADD 0x1f 360 361 #define OPC63_FCMPU 0x00 362 #define OPC63_FRSP 0x0c 363 #define OPC63_FCTIW 0x0e 364 #define OPC63_FCTIWZ 0x0f 365 #define OPC63_FCMPO 0x20 366 #define OPC63_MTFSB1 0x26 367 #define OPC63_FNEG 0x28 368 #define OPC63_MCRFS 0x40 369 #define OPC63_MTFSB0 0x46 370 #define OPC63_FMR 0x48 371 #define OPC63_MTFSFI 0x86 372 #define OPC63_FNABS 0x88 373 #define OPC63_FABS 0x108 374 #define OPC63_MFFS 0x247 375 #define OPC63_MTFSF 0x2c7 376 #define OPC63_FCTID 0x32e 377 #define OPC63_FCTIDZ 0x32f 378 #define OPC63_FCFID 0x34e 379 380 /* 381 * FPU data types. 382 */ 383 #define FTYPE_LNG -1 /* data = 64-bit signed long integer */ 384 #define FTYPE_INT 0 /* data = 32-bit signed integer */ 385 #define FTYPE_SNG 1 /* data = 32-bit float */ 386 #define FTYPE_DBL 2 /* data = 64-bit double */ 387