cpu-ia64-opc.c revision 130562
155625Sache/* Copyright 1998, 1999, 2000, 2001, 2002, 2003 255625Sache Free Software Foundation, Inc. 386796Sache Contributed by David Mosberger-Tang <davidm@hpl.hp.com> 486796Sache 586796SacheThis file is part of BFD, the Binary File Descriptor library. 686796Sache 786796SacheThis program is free software; you can redistribute it and/or modify 886796Sacheit under the terms of the GNU General Public License as published by 986796Sachethe Free Software Foundation; either version 2 of the License, or 1086796Sache(at your option) any later version. 1186796Sache 1286796SacheThis program is distributed in the hope that it will be useful, 1386796Sachebut WITHOUT ANY WARRANTY; without even the implied warranty of 1486796SacheMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 1555625SacheGNU General Public License for more details. 1655625Sache 1755625SacheYou should have received a copy of the GNU General Public License 1855625Sachealong with this program; if not, write to the Free Software 1955625SacheFoundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ 2055625Sache 2155625Sache/* Logically, this code should be part of libopcode but since some of 2255625Sache the operand insertion/extraction functions help bfd to implement 2355625Sache relocations, this code is included as part of cpu-ia64.c. This 2455625Sache avoids circular dependencies between libopcode and libbfd and also 2555625Sache obviates the need for applications to link in libopcode when all 2655625Sache they really want is libbfd. 2755625Sache 2855625Sache --davidm Mon Apr 13 22:14:02 1998 */ 2955625Sache 3055625Sache#include "../opcodes/ia64-opc.h" 3155625Sache 3255625Sache#define NELEMS(a) ((int) (sizeof (a) / sizeof ((a)[0]))) 3355625Sache 3455625Sachestatic const char* 3555625Sacheins_rsvd (const struct ia64_operand *self ATTRIBUTE_UNUSED, 3655625Sache ia64_insn value ATTRIBUTE_UNUSED, ia64_insn *code ATTRIBUTE_UNUSED) 3755625Sache{ 3855625Sache return "internal error---this shouldn't happen"; 3955625Sache} 4055625Sache 4155625Sachestatic const char* 4255625Sacheext_rsvd (const struct ia64_operand *self ATTRIBUTE_UNUSED, 4355625Sache ia64_insn code ATTRIBUTE_UNUSED, ia64_insn *valuep ATTRIBUTE_UNUSED) 4455625Sache{ 45250553Seadler return "internal error---this shouldn't happen"; 4655625Sache} 4755625Sache 4886796Sachestatic const char* 4986796Sacheins_const (const struct ia64_operand *self ATTRIBUTE_UNUSED, 5086796Sache ia64_insn value ATTRIBUTE_UNUSED, ia64_insn *code ATTRIBUTE_UNUSED) 5186796Sache{ 5286796Sache return 0; 5386796Sache} 5486796Sache 5586796Sachestatic const char* 5686796Sacheext_const (const struct ia64_operand *self ATTRIBUTE_UNUSED, 5786796Sache ia64_insn code ATTRIBUTE_UNUSED, ia64_insn *valuep ATTRIBUTE_UNUSED) 5886796Sache{ 5986796Sache return 0; 6055625Sache} 6155625Sache 6255625Sachestatic const char* 6355625Sacheins_reg (const struct ia64_operand *self, ia64_insn value, ia64_insn *code) 6455625Sache{ 6555625Sache if (value >= 1u << self->field[0].bits) 6655625Sache return "register number out of range"; 6755625Sache 6855625Sache *code |= value << self->field[0].shift; 6955625Sache return 0; 7055625Sache} 7155625Sache 7255625Sachestatic const char* 7355625Sacheext_reg (const struct ia64_operand *self, ia64_insn code, ia64_insn *valuep) 7455625Sache{ 7555625Sache *valuep = ((code >> self->field[0].shift) 7655625Sache & ((1u << self->field[0].bits) - 1)); 7755625Sache return 0; 7855625Sache} 7955625Sache 8055625Sachestatic const char* 8155625Sacheins_immu (const struct ia64_operand *self, ia64_insn value, ia64_insn *code) 8255625Sache{ 8355625Sache ia64_insn new = 0; 8455625Sache int i; 8555625Sache 8655625Sache for (i = 0; i < NELEMS (self->field) && self->field[i].bits; ++i) 8755625Sache { 8855625Sache new |= ((value & ((((ia64_insn) 1) << self->field[i].bits) - 1)) 8955625Sache << self->field[i].shift); 9055625Sache value >>= self->field[i].bits; 9155625Sache } 9255625Sache if (value) 9355625Sache return "integer operand out of range"; 9486796Sache 9555625Sache *code |= new; 9655625Sache return 0; 97} 98 99static const char* 100ext_immu (const struct ia64_operand *self, ia64_insn code, ia64_insn *valuep) 101{ 102 BFD_HOST_U_64_BIT value = 0; 103 int i, bits = 0, total = 0; 104 105 for (i = 0; i < NELEMS (self->field) && self->field[i].bits; ++i) 106 { 107 bits = self->field[i].bits; 108 value |= ((code >> self->field[i].shift) 109 & ((((BFD_HOST_U_64_BIT) 1) << bits) - 1)) << total; 110 total += bits; 111 } 112 *valuep = value; 113 return 0; 114} 115 116static const char* 117ins_immus8 (const struct ia64_operand *self, ia64_insn value, ia64_insn *code) 118{ 119 if (value & 0x7) 120 return "value not an integer multiple of 8"; 121 return ins_immu (self, value >> 3, code); 122} 123 124static const char* 125ext_immus8 (const struct ia64_operand *self, ia64_insn code, ia64_insn *valuep) 126{ 127 const char *result; 128 129 result = ext_immu (self, code, valuep); 130 if (result) 131 return result; 132 133 *valuep = *valuep << 3; 134 return 0; 135} 136 137static const char* 138ins_imms_scaled (const struct ia64_operand *self, ia64_insn value, 139 ia64_insn *code, int scale) 140{ 141 BFD_HOST_64_BIT svalue = value, sign_bit = 0; 142 ia64_insn new = 0; 143 int i; 144 145 svalue >>= scale; 146 147 for (i = 0; i < NELEMS (self->field) && self->field[i].bits; ++i) 148 { 149 new |= ((svalue & ((((ia64_insn) 1) << self->field[i].bits) - 1)) 150 << self->field[i].shift); 151 sign_bit = (svalue >> (self->field[i].bits - 1)) & 1; 152 svalue >>= self->field[i].bits; 153 } 154 if ((!sign_bit && svalue != 0) || (sign_bit && svalue != -1)) 155 return "integer operand out of range"; 156 157 *code |= new; 158 return 0; 159} 160 161static const char* 162ext_imms_scaled (const struct ia64_operand *self, ia64_insn code, 163 ia64_insn *valuep, int scale) 164{ 165 int i, bits = 0, total = 0; 166 BFD_HOST_64_BIT val = 0, sign; 167 168 for (i = 0; i < NELEMS (self->field) && self->field[i].bits; ++i) 169 { 170 bits = self->field[i].bits; 171 val |= ((code >> self->field[i].shift) 172 & ((((BFD_HOST_U_64_BIT) 1) << bits) - 1)) << total; 173 total += bits; 174 } 175 /* sign extend: */ 176 sign = (BFD_HOST_64_BIT) 1 << (total - 1); 177 val = (val ^ sign) - sign; 178 179 *valuep = (val << scale); 180 return 0; 181} 182 183static const char* 184ins_imms (const struct ia64_operand *self, ia64_insn value, ia64_insn *code) 185{ 186 return ins_imms_scaled (self, value, code, 0); 187} 188 189static const char* 190ins_immsu4 (const struct ia64_operand *self, ia64_insn value, ia64_insn *code) 191{ 192 value = ((value & 0xffffffff) ^ 0x80000000) - 0x80000000; 193 194 return ins_imms_scaled (self, value, code, 0); 195} 196 197static const char* 198ext_imms (const struct ia64_operand *self, ia64_insn code, ia64_insn *valuep) 199{ 200 return ext_imms_scaled (self, code, valuep, 0); 201} 202 203static const char* 204ins_immsm1 (const struct ia64_operand *self, ia64_insn value, ia64_insn *code) 205{ 206 --value; 207 return ins_imms_scaled (self, value, code, 0); 208} 209 210static const char* 211ins_immsm1u4 (const struct ia64_operand *self, ia64_insn value, 212 ia64_insn *code) 213{ 214 value = ((value & 0xffffffff) ^ 0x80000000) - 0x80000000; 215 216 --value; 217 return ins_imms_scaled (self, value, code, 0); 218} 219 220static const char* 221ext_immsm1 (const struct ia64_operand *self, ia64_insn code, ia64_insn *valuep) 222{ 223 const char *res = ext_imms_scaled (self, code, valuep, 0); 224 225 ++*valuep; 226 return res; 227} 228 229static const char* 230ins_imms1 (const struct ia64_operand *self, ia64_insn value, ia64_insn *code) 231{ 232 return ins_imms_scaled (self, value, code, 1); 233} 234 235static const char* 236ext_imms1 (const struct ia64_operand *self, ia64_insn code, ia64_insn *valuep) 237{ 238 return ext_imms_scaled (self, code, valuep, 1); 239} 240 241static const char* 242ins_imms4 (const struct ia64_operand *self, ia64_insn value, ia64_insn *code) 243{ 244 return ins_imms_scaled (self, value, code, 4); 245} 246 247static const char* 248ext_imms4 (const struct ia64_operand *self, ia64_insn code, ia64_insn *valuep) 249{ 250 return ext_imms_scaled (self, code, valuep, 4); 251} 252 253static const char* 254ins_imms16 (const struct ia64_operand *self, ia64_insn value, ia64_insn *code) 255{ 256 return ins_imms_scaled (self, value, code, 16); 257} 258 259static const char* 260ext_imms16 (const struct ia64_operand *self, ia64_insn code, ia64_insn *valuep) 261{ 262 return ext_imms_scaled (self, code, valuep, 16); 263} 264 265static const char* 266ins_cimmu (const struct ia64_operand *self, ia64_insn value, ia64_insn *code) 267{ 268 ia64_insn mask = (((ia64_insn) 1) << self->field[0].bits) - 1; 269 return ins_immu (self, value ^ mask, code); 270} 271 272static const char* 273ext_cimmu (const struct ia64_operand *self, ia64_insn code, ia64_insn *valuep) 274{ 275 const char *result; 276 ia64_insn mask; 277 278 mask = (((ia64_insn) 1) << self->field[0].bits) - 1; 279 result = ext_immu (self, code, valuep); 280 if (!result) 281 { 282 mask = (((ia64_insn) 1) << self->field[0].bits) - 1; 283 *valuep ^= mask; 284 } 285 return result; 286} 287 288static const char* 289ins_cnt (const struct ia64_operand *self, ia64_insn value, ia64_insn *code) 290{ 291 --value; 292 if (value >= ((BFD_HOST_U_64_BIT) 1) << self->field[0].bits) 293 return "count out of range"; 294 295 *code |= value << self->field[0].shift; 296 return 0; 297} 298 299static const char* 300ext_cnt (const struct ia64_operand *self, ia64_insn code, ia64_insn *valuep) 301{ 302 *valuep = ((code >> self->field[0].shift) 303 & ((((BFD_HOST_U_64_BIT) 1) << self->field[0].bits) - 1)) + 1; 304 return 0; 305} 306 307static const char* 308ins_cnt2b (const struct ia64_operand *self, ia64_insn value, ia64_insn *code) 309{ 310 --value; 311 312 if (value > 2) 313 return "count must be in range 1..3"; 314 315 *code |= value << self->field[0].shift; 316 return 0; 317} 318 319static const char* 320ext_cnt2b (const struct ia64_operand *self, ia64_insn code, ia64_insn *valuep) 321{ 322 *valuep = ((code >> self->field[0].shift) & 0x3) + 1; 323 return 0; 324} 325 326static const char* 327ins_cnt2c (const struct ia64_operand *self, ia64_insn value, ia64_insn *code) 328{ 329 switch (value) 330 { 331 case 0: value = 0; break; 332 case 7: value = 1; break; 333 case 15: value = 2; break; 334 case 16: value = 3; break; 335 default: return "count must be 0, 7, 15, or 16"; 336 } 337 *code |= value << self->field[0].shift; 338 return 0; 339} 340 341static const char* 342ext_cnt2c (const struct ia64_operand *self, ia64_insn code, ia64_insn *valuep) 343{ 344 ia64_insn value; 345 346 value = (code >> self->field[0].shift) & 0x3; 347 switch (value) 348 { 349 case 0: value = 0; break; 350 case 1: value = 7; break; 351 case 2: value = 15; break; 352 case 3: value = 16; break; 353 } 354 *valuep = value; 355 return 0; 356} 357 358static const char* 359ins_inc3 (const struct ia64_operand *self, ia64_insn value, ia64_insn *code) 360{ 361 BFD_HOST_64_BIT val = value; 362 BFD_HOST_U_64_BIT sign = 0; 363 364 if (val < 0) 365 { 366 sign = 0x4; 367 value = -value; 368 } 369 switch (value) 370 { 371 case 1: value = 3; break; 372 case 4: value = 2; break; 373 case 8: value = 1; break; 374 case 16: value = 0; break; 375 default: return "count must be +/- 1, 4, 8, or 16"; 376 } 377 *code |= (sign | value) << self->field[0].shift; 378 return 0; 379} 380 381static const char* 382ext_inc3 (const struct ia64_operand *self, ia64_insn code, ia64_insn *valuep) 383{ 384 BFD_HOST_64_BIT val; 385 int negate; 386 387 val = (code >> self->field[0].shift) & 0x7; 388 negate = val & 0x4; 389 switch (val & 0x3) 390 { 391 case 0: val = 16; break; 392 case 1: val = 8; break; 393 case 2: val = 4; break; 394 case 3: val = 1; break; 395 } 396 if (negate) 397 val = -val; 398 399 *valuep = val; 400 return 0; 401} 402 403#define CST IA64_OPND_CLASS_CST 404#define REG IA64_OPND_CLASS_REG 405#define IND IA64_OPND_CLASS_IND 406#define ABS IA64_OPND_CLASS_ABS 407#define REL IA64_OPND_CLASS_REL 408 409#define SDEC IA64_OPND_FLAG_DECIMAL_SIGNED 410#define UDEC IA64_OPND_FLAG_DECIMAL_UNSIGNED 411 412const struct ia64_operand elf64_ia64_operands[IA64_OPND_COUNT] = 413 { 414 /* constants: */ 415 { CST, ins_const, ext_const, "NIL", {{ 0, 0}}, 0, "<none>" }, 416 { CST, ins_const, ext_const, "ar.csd", {{ 0, 0}}, 0, "ar.csd" }, 417 { CST, ins_const, ext_const, "ar.ccv", {{ 0, 0}}, 0, "ar.ccv" }, 418 { CST, ins_const, ext_const, "ar.pfs", {{ 0, 0}}, 0, "ar.pfs" }, 419 { CST, ins_const, ext_const, "1", {{ 0, 0}}, 0, "1" }, 420 { CST, ins_const, ext_const, "8", {{ 0, 0}}, 0, "8" }, 421 { CST, ins_const, ext_const, "16", {{ 0, 0}}, 0, "16" }, 422 { CST, ins_const, ext_const, "r0", {{ 0, 0}}, 0, "r0" }, 423 { CST, ins_const, ext_const, "ip", {{ 0, 0}}, 0, "ip" }, 424 { CST, ins_const, ext_const, "pr", {{ 0, 0}}, 0, "pr" }, 425 { CST, ins_const, ext_const, "pr.rot", {{ 0, 0}}, 0, "pr.rot" }, 426 { CST, ins_const, ext_const, "psr", {{ 0, 0}}, 0, "psr" }, 427 { CST, ins_const, ext_const, "psr.l", {{ 0, 0}}, 0, "psr.l" }, 428 { CST, ins_const, ext_const, "psr.um", {{ 0, 0}}, 0, "psr.um" }, 429 430 /* register operands: */ 431 { REG, ins_reg, ext_reg, "ar", {{ 7, 20}}, 0, /* AR3 */ 432 "an application register" }, 433 { REG, ins_reg, ext_reg, "b", {{ 3, 6}}, 0, /* B1 */ 434 "a branch register" }, 435 { REG, ins_reg, ext_reg, "b", {{ 3, 13}}, 0, /* B2 */ 436 "a branch register"}, 437 { REG, ins_reg, ext_reg, "cr", {{ 7, 20}}, 0, /* CR */ 438 "a control register"}, 439 { REG, ins_reg, ext_reg, "f", {{ 7, 6}}, 0, /* F1 */ 440 "a floating-point register" }, 441 { REG, ins_reg, ext_reg, "f", {{ 7, 13}}, 0, /* F2 */ 442 "a floating-point register" }, 443 { REG, ins_reg, ext_reg, "f", {{ 7, 20}}, 0, /* F3 */ 444 "a floating-point register" }, 445 { REG, ins_reg, ext_reg, "f", {{ 7, 27}}, 0, /* F4 */ 446 "a floating-point register" }, 447 { REG, ins_reg, ext_reg, "p", {{ 6, 6}}, 0, /* P1 */ 448 "a predicate register" }, 449 { REG, ins_reg, ext_reg, "p", {{ 6, 27}}, 0, /* P2 */ 450 "a predicate register" }, 451 { REG, ins_reg, ext_reg, "r", {{ 7, 6}}, 0, /* R1 */ 452 "a general register" }, 453 { REG, ins_reg, ext_reg, "r", {{ 7, 13}}, 0, /* R2 */ 454 "a general register" }, 455 { REG, ins_reg, ext_reg, "r", {{ 7, 20}}, 0, /* R3 */ 456 "a general register" }, 457 { REG, ins_reg, ext_reg, "r", {{ 2, 20}}, 0, /* R3_2 */ 458 "a general register r0-r3" }, 459 460 /* indirect operands: */ 461 { IND, ins_reg, ext_reg, "cpuid", {{7, 20}}, 0, /* CPUID_R3 */ 462 "a cpuid register" }, 463 { IND, ins_reg, ext_reg, "dbr", {{7, 20}}, 0, /* DBR_R3 */ 464 "a dbr register" }, 465 { IND, ins_reg, ext_reg, "dtr", {{7, 20}}, 0, /* DTR_R3 */ 466 "a dtr register" }, 467 { IND, ins_reg, ext_reg, "itr", {{7, 20}}, 0, /* ITR_R3 */ 468 "an itr register" }, 469 { IND, ins_reg, ext_reg, "ibr", {{7, 20}}, 0, /* IBR_R3 */ 470 "an ibr register" }, 471 { IND, ins_reg, ext_reg, "", {{7, 20}}, 0, /* MR3 */ 472 "an indirect memory address" }, 473 { IND, ins_reg, ext_reg, "msr", {{7, 20}}, 0, /* MSR_R3 */ 474 "an msr register" }, 475 { IND, ins_reg, ext_reg, "pkr", {{7, 20}}, 0, /* PKR_R3 */ 476 "a pkr register" }, 477 { IND, ins_reg, ext_reg, "pmc", {{7, 20}}, 0, /* PMC_R3 */ 478 "a pmc register" }, 479 { IND, ins_reg, ext_reg, "pmd", {{7, 20}}, 0, /* PMD_R3 */ 480 "a pmd register" }, 481 { IND, ins_reg, ext_reg, "rr", {{7, 20}}, 0, /* RR_R3 */ 482 "an rr register" }, 483 484 /* immediate operands: */ 485 { ABS, ins_cimmu, ext_cimmu, 0, {{ 5, 20 }}, UDEC, /* CCNT5 */ 486 "a 5-bit count (0-31)" }, 487 { ABS, ins_cnt, ext_cnt, 0, {{ 2, 27 }}, UDEC, /* CNT2a */ 488 "a 2-bit count (1-4)" }, 489 { ABS, ins_cnt2b, ext_cnt2b, 0, {{ 2, 27 }}, UDEC, /* CNT2b */ 490 "a 2-bit count (1-3)" }, 491 { ABS, ins_cnt2c, ext_cnt2c, 0, {{ 2, 30 }}, UDEC, /* CNT2c */ 492 "a count (0, 7, 15, or 16)" }, 493 { ABS, ins_immu, ext_immu, 0, {{ 5, 14}}, UDEC, /* CNT5 */ 494 "a 5-bit count (0-31)" }, 495 { ABS, ins_immu, ext_immu, 0, {{ 6, 27}}, UDEC, /* CNT6 */ 496 "a 6-bit count (0-63)" }, 497 { ABS, ins_cimmu, ext_cimmu, 0, {{ 6, 20}}, UDEC, /* CPOS6a */ 498 "a 6-bit bit pos (0-63)" }, 499 { ABS, ins_cimmu, ext_cimmu, 0, {{ 6, 14}}, UDEC, /* CPOS6b */ 500 "a 6-bit bit pos (0-63)" }, 501 { ABS, ins_cimmu, ext_cimmu, 0, {{ 6, 31}}, UDEC, /* CPOS6c */ 502 "a 6-bit bit pos (0-63)" }, 503 { ABS, ins_imms, ext_imms, 0, {{ 1, 36}}, SDEC, /* IMM1 */ 504 "a 1-bit integer (-1, 0)" }, 505 { ABS, ins_immu, ext_immu, 0, {{ 2, 13}}, UDEC, /* IMMU2 */ 506 "a 2-bit unsigned (0-3)" }, 507 { ABS, ins_immu, ext_immu, 0, {{ 7, 13}}, 0, /* IMMU7a */ 508 "a 7-bit unsigned (0-127)" }, 509 { ABS, ins_immu, ext_immu, 0, {{ 7, 20}}, 0, /* IMMU7b */ 510 "a 7-bit unsigned (0-127)" }, 511 { ABS, ins_immu, ext_immu, 0, {{ 7, 13}}, UDEC, /* SOF */ 512 "a frame size (register count)" }, 513 { ABS, ins_immu, ext_immu, 0, {{ 7, 20}}, UDEC, /* SOL */ 514 "a local register count" }, 515 { ABS, ins_immus8,ext_immus8,0, {{ 4, 27}}, UDEC, /* SOR */ 516 "a rotating register count (integer multiple of 8)" }, 517 { ABS, ins_imms, ext_imms, 0, /* IMM8 */ 518 {{ 7, 13}, { 1, 36}}, SDEC, 519 "an 8-bit integer (-128-127)" }, 520 { ABS, ins_immsu4, ext_imms, 0, /* IMM8U4 */ 521 {{ 7, 13}, { 1, 36}}, SDEC, 522 "an 8-bit signed integer for 32-bit unsigned compare (-128-127)" }, 523 { ABS, ins_immsm1, ext_immsm1, 0, /* IMM8M1 */ 524 {{ 7, 13}, { 1, 36}}, SDEC, 525 "an 8-bit integer (-127-128)" }, 526 { ABS, ins_immsm1u4, ext_immsm1, 0, /* IMM8M1U4 */ 527 {{ 7, 13}, { 1, 36}}, SDEC, 528 "an 8-bit integer for 32-bit unsigned compare (-127-(-1),1-128,0x100000000)" }, 529 { ABS, ins_immsm1, ext_immsm1, 0, /* IMM8M1U8 */ 530 {{ 7, 13}, { 1, 36}}, SDEC, 531 "an 8-bit integer for 64-bit unsigned compare (-127-(-1),1-128,0x10000000000000000)" }, 532 { ABS, ins_immu, ext_immu, 0, {{ 2, 33}, { 7, 20}}, 0, /* IMMU9 */ 533 "a 9-bit unsigned (0-511)" }, 534 { ABS, ins_imms, ext_imms, 0, /* IMM9a */ 535 {{ 7, 6}, { 1, 27}, { 1, 36}}, SDEC, 536 "a 9-bit integer (-256-255)" }, 537 { ABS, ins_imms, ext_imms, 0, /* IMM9b */ 538 {{ 7, 13}, { 1, 27}, { 1, 36}}, SDEC, 539 "a 9-bit integer (-256-255)" }, 540 { ABS, ins_imms, ext_imms, 0, /* IMM14 */ 541 {{ 7, 13}, { 6, 27}, { 1, 36}}, SDEC, 542 "a 14-bit integer (-8192-8191)" }, 543 { ABS, ins_imms1, ext_imms1, 0, /* IMM17 */ 544 {{ 7, 6}, { 8, 24}, { 1, 36}}, 0, 545 "a 17-bit integer (-65536-65535)" }, 546 { ABS, ins_immu, ext_immu, 0, {{20, 6}, { 1, 36}}, 0, /* IMMU21 */ 547 "a 21-bit unsigned" }, 548 { ABS, ins_imms, ext_imms, 0, /* IMM22 */ 549 {{ 7, 13}, { 9, 27}, { 5, 22}, { 1, 36}}, SDEC, 550 "a 22-bit signed integer" }, 551 { ABS, ins_immu, ext_immu, 0, /* IMMU24 */ 552 {{21, 6}, { 2, 31}, { 1, 36}}, 0, 553 "a 24-bit unsigned" }, 554 { ABS, ins_imms16,ext_imms16,0, {{27, 6}, { 1, 36}}, 0, /* IMM44 */ 555 "a 44-bit unsigned (least 16 bits ignored/zeroes)" }, 556 { ABS, ins_rsvd, ext_rsvd, 0, {{0, 0}}, 0, /* IMMU62 */ 557 "a 62-bit unsigned" }, 558 { ABS, ins_rsvd, ext_rsvd, 0, {{0, 0}}, 0, /* IMMU64 */ 559 "a 64-bit unsigned" }, 560 { ABS, ins_inc3, ext_inc3, 0, {{ 3, 13}}, SDEC, /* INC3 */ 561 "an increment (+/- 1, 4, 8, or 16)" }, 562 { ABS, ins_cnt, ext_cnt, 0, {{ 4, 27}}, UDEC, /* LEN4 */ 563 "a 4-bit length (1-16)" }, 564 { ABS, ins_cnt, ext_cnt, 0, {{ 6, 27}}, UDEC, /* LEN6 */ 565 "a 6-bit length (1-64)" }, 566 { ABS, ins_immu, ext_immu, 0, {{ 4, 20}}, 0, /* MBTYPE4 */ 567 "a mix type (@rev, @mix, @shuf, @alt, or @brcst)" }, 568 { ABS, ins_immu, ext_immu, 0, {{ 8, 20}}, 0, /* MBTYPE8 */ 569 "an 8-bit mix type" }, 570 { ABS, ins_immu, ext_immu, 0, {{ 6, 14}}, UDEC, /* POS6 */ 571 "a 6-bit bit pos (0-63)" }, 572 { REL, ins_imms4, ext_imms4, 0, {{ 7, 6}, { 2, 33}}, 0, /* TAG13 */ 573 "a branch tag" }, 574 { REL, ins_imms4, ext_imms4, 0, {{ 9, 24}}, 0, /* TAG13b */ 575 "a branch tag" }, 576 { REL, ins_imms4, ext_imms4, 0, {{20, 6}, { 1, 36}}, 0, /* TGT25 */ 577 "a branch target" }, 578 { REL, ins_imms4, ext_imms4, 0, /* TGT25b */ 579 {{ 7, 6}, {13, 20}, { 1, 36}}, 0, 580 "a branch target" }, 581 { REL, ins_imms4, ext_imms4, 0, {{20, 13}, { 1, 36}}, 0, /* TGT25c */ 582 "a branch target" }, 583 { REL, ins_rsvd, ext_rsvd, 0, {{0, 0}}, 0, /* TGT64 */ 584 "a branch target" }, 585 586 { ABS, ins_const, ext_const, 0, {{0, 0}}, 0, /* LDXMOV */ 587 "ldxmov target" }, 588 }; 589