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