test/MC/X86/x86-16.s

   1 // RUN: llvm-mc -triple i386-unknown-unknown --show-encoding %s | FileCheck %s
   2
   3         .code16
   4
   5         movl $0x12345678, %ebx
   6 // CHECK: movl
   7 // CHECK: encoding: [0x66,0xbb,0x78,0x56,0x34,0x12]
   8         pause
   9 // CHECK: pause
  10 // CHECK: encoding: [0xf3,0x90]
  11         sfence
  12 // CHECK: sfence
  13 // CHECK: encoding: [0x0f,0xae,0xf8]
  14         lfence
  15 // CHECK: lfence
  16 // CHECK: encoding: [0x0f,0xae,0xe8]
  17         mfence
  18         stgi
  19 // CHECK: stgi
  20 // CHECK: encoding: [0x0f,0x01,0xdc]
  21         clgi
  22 // CHECK: clgi
  23 // CHECK: encoding: [0x0f,0x01,0xdd]
  24
  25         rdtscp
  26 // CHECK: rdtscp
  27 // CHECK:  encoding: [0x0f,0x01,0xf9]
  28
  29
  30 // CHECK: movl  %eax, 16(%ebp)          # encoding: [0x67,0x66,0x89,0x45,0x10]
  31         movl    %eax, 16(%ebp)
  32 // CHECK: movl  %eax, -16(%ebp)          # encoding: [0x67,0x66,0x89,0x45,0xf0]
  33         movl    %eax, -16(%ebp)
  34
  35 // CHECK: testb %bl, %cl                # encoding: [0x84,0xcb]
  36         testb %bl, %cl
  37
  38 // CHECK: cmpl  %eax, %ebx              # encoding: [0x66,0x39,0xc3]
  39         cmpl %eax, %ebx
  40
  41 // CHECK: addw  %ax, %ax                # encoding: [0x01,0xc0]
  42         addw %ax, %ax
  43
  44 // CHECK: shrl  %eax                    # encoding: [0x66,0xd1,0xe8]
  45         shrl $1, %eax
  46
  47 // CHECK: shll  %eax                    # encoding: [0x66,0xd1,0xe0]
  48         sall $1, %eax
  49 // CHECK: shll  %eax                    # encoding: [0x66,0xd1,0xe0]
  50         sal $1, %eax
  51
  52 // moffset forms of moves
  53
  54 // CHECK: movb 0, %al  # encoding: [0xa0,0x00,0x00]
  55 movb    0, %al
  56
  57 // CHECK: movw 0, %ax  # encoding: [0xa1,0x00,0x00]
  58 movw    0, %ax
  59
  60 // CHECK: movl 0, %eax  # encoding: [0x66,0xa1,0x00,0x00]
  61 movl    0, %eax
  62
  63 into
  64 // CHECK: into
  65 // CHECK:  encoding: [0xce]
  66 int3
  67 // CHECK: int3
  68 // CHECK:  encoding: [0xcc]
  69 int $4
  70 // CHECK: int $4
  71 // CHECK:  encoding: [0xcd,0x04]
  72 int $255
  73 // CHECK: int $255
  74 // CHECK:  encoding: [0xcd,0xff]
  75
  76 // CHECK: pushfw        # encoding: [0x9c]
  77         pushf
  78 // CHECK: pushfl        # encoding: [0x66,0x9c]
  79         pushfl
  80 // CHECK: popfw         # encoding: [0x9d]
  81         popf
  82 // CHECK: popfl         # encoding: [0x66,0x9d]
  83         popfl
  84
  85 retl
  86 // CHECK: ret
  87 // CHECK:  encoding: [0x66,0xc3]
  88
  89 // CHECK: cmoval        %eax, %edx
  90 // CHECK:  encoding: [0x66,0x0f,0x47,0xd0]
  91                 cmoval  %eax,%edx
  92
  93 // CHECK: cmovael       %eax, %edx
  94 // CHECK:  encoding: [0x66,0x0f,0x43,0xd0]
  95                 cmovael %eax,%edx
  96
  97 // CHECK: cmovbel       %eax, %edx
  98 // CHECK:  encoding: [0x66,0x0f,0x46,0xd0]
  99                 cmovbel %eax,%edx
 100
 101 // CHECK: cmovbl        %eax, %edx
 102 // CHECK:  encoding: [0x66,0x0f,0x42,0xd0]
 103                 cmovbl  %eax,%edx
 104
 105 // CHECK: cmovbw %bx, %bx
 106 cmovnae %bx,%bx
 107
 108
 109 // CHECK: cmovbel       %eax, %edx
 110 // CHECK:  encoding: [0x66,0x0f,0x46,0xd0]
 111                 cmovbel %eax,%edx
 112
 113 // CHECK: cmovbl        %eax, %edx
 114 // CHECK:  encoding: [0x66,0x0f,0x42,0xd0]
 115                 cmovcl  %eax,%edx
 116
 117 // CHECK: cmovel        %eax, %edx
 118 // CHECK:  encoding: [0x66,0x0f,0x44,0xd0]
 119                 cmovel  %eax,%edx
 120
 121 // CHECK: cmovgl        %eax, %edx
 122 // CHECK:  encoding: [0x66,0x0f,0x4f,0xd0]
 123                 cmovgl  %eax,%edx
 124
 125 // CHECK: cmovgel       %eax, %edx
 126 // CHECK:  encoding: [0x66,0x0f,0x4d,0xd0]
 127                 cmovgel %eax,%edx
 128
 129 // CHECK: cmovll        %eax, %edx
 130 // CHECK:  encoding: [0x66,0x0f,0x4c,0xd0]
 131                 cmovll  %eax,%edx
 132
 133 // CHECK: cmovlel       %eax, %edx
 134 // CHECK:  encoding: [0x66,0x0f,0x4e,0xd0]
 135                 cmovlel %eax,%edx
 136
 137 // CHECK: cmovbel       %eax, %edx
 138 // CHECK:  encoding: [0x66,0x0f,0x46,0xd0]
 139                 cmovnal %eax,%edx
 140
 141 // CHECK: cmovnel       %eax, %edx
 142 // CHECK:  encoding: [0x66,0x0f,0x45,0xd0]
 143                 cmovnel %eax,%edx
 144
 145 // CHECK: cmovael       %eax, %edx
 146 // CHECK:  encoding: [0x66,0x0f,0x43,0xd0]
 147                 cmovnbl %eax,%edx
 148
 149 // CHECK: cmoval        %eax, %edx
 150 // CHECK:  encoding: [0x66,0x0f,0x47,0xd0]
 151                 cmovnbel        %eax,%edx
 152
 153 // CHECK: cmovael       %eax, %edx
 154 // CHECK:  encoding: [0x66,0x0f,0x43,0xd0]
 155                 cmovncl %eax,%edx
 156
 157 // CHECK: cmovnel       %eax, %edx
 158 // CHECK:  encoding: [0x66,0x0f,0x45,0xd0]
 159                 cmovnel %eax,%edx
 160
 161 // CHECK: cmovlel       %eax, %edx
 162 // CHECK:  encoding: [0x66,0x0f,0x4e,0xd0]
 163                 cmovngl %eax,%edx
 164
 165 // CHECK: cmovgel       %eax, %edx
 166 // CHECK:  encoding: [0x66,0x0f,0x4d,0xd0]
 167                 cmovnl  %eax,%edx
 168
 169 // CHECK: cmovnel       %eax, %edx
 170 // CHECK:  encoding: [0x66,0x0f,0x45,0xd0]
 171                 cmovnel %eax,%edx
 172
 173 // CHECK: cmovlel       %eax, %edx
 174 // CHECK:  encoding: [0x66,0x0f,0x4e,0xd0]
 175                 cmovngl %eax,%edx
 176
 177 // CHECK: cmovll        %eax, %edx
 178 // CHECK:  encoding: [0x66,0x0f,0x4c,0xd0]
 179                 cmovngel        %eax,%edx
 180
 181 // CHECK: cmovgel       %eax, %edx
 182 // CHECK:  encoding: [0x66,0x0f,0x4d,0xd0]
 183                 cmovnll %eax,%edx
 184
 185 // CHECK: cmovgl        %eax, %edx
 186 // CHECK:  encoding: [0x66,0x0f,0x4f,0xd0]
 187                 cmovnlel        %eax,%edx
 188
 189 // CHECK: cmovnol       %eax, %edx
 190 // CHECK:  encoding: [0x66,0x0f,0x41,0xd0]
 191                 cmovnol %eax,%edx
 192
 193 // CHECK: cmovnpl       %eax, %edx
 194 // CHECK:  encoding: [0x66,0x0f,0x4b,0xd0]
 195                 cmovnpl %eax,%edx
 196
 197 // CHECK: cmovnsl       %eax, %edx
 198 // CHECK:  encoding: [0x66,0x0f,0x49,0xd0]
 199                 cmovnsl %eax,%edx
 200
 201 // CHECK: cmovnel       %eax, %edx
 202 // CHECK:  encoding: [0x66,0x0f,0x45,0xd0]
 203                 cmovnzl %eax,%edx
 204
 205 // CHECK: cmovol        %eax, %edx
 206 // CHECK:  encoding: [0x66,0x0f,0x40,0xd0]
 207                 cmovol  %eax,%edx
 208
 209 // CHECK: cmovpl        %eax, %edx
 210 // CHECK:  encoding: [0x66,0x0f,0x4a,0xd0]
 211                 cmovpl  %eax,%edx
 212
 213 // CHECK: cmovsl        %eax, %edx
 214 // CHECK:  encoding: [0x66,0x0f,0x48,0xd0]
 215                 cmovsl  %eax,%edx
 216
 217 // CHECK: cmovel        %eax, %edx
 218 // CHECK:  encoding: [0x66,0x0f,0x44,0xd0]
 219                 cmovzl  %eax,%edx
 220
 221 // CHECK: fmul  %st(0)
 222 // CHECK:  encoding: [0xd8,0xc8]
 223         fmul %st(0), %st
 224
 225 // CHECK: fadd  %st(0)
 226 // CHECK:  encoding: [0xd8,0xc0]
 227         fadd %st(0), %st
 228
 229 // CHECK: fsub  %st(0)
 230 // CHECK:  encoding: [0xd8,0xe0]
 231         fsub %st(0), %st
 232
 233 // CHECK: fsubr %st(0)
 234 // CHECK:  encoding: [0xd8,0xe8]
 235         fsubr %st(0), %st
 236
 237 // CHECK: fdivr %st(0)
 238 // CHECK:  encoding: [0xd8,0xf8]
 239         fdivr %st(0), %st
 240
 241 // CHECK: fdiv  %st(0)
 242 // CHECK:  encoding: [0xd8,0xf0]
 243         fdiv %st(0), %st
 244
 245 // CHECK: movl  %cs, %eax
 246 // CHECK:  encoding: [0x66,0x8c,0xc8]
 247         movl %cs, %eax
 248
 249 // CHECK: movw  %cs, %ax
 250 // CHECK:  encoding: [0x8c,0xc8]
 251         movw %cs, %ax
 252
 253 // CHECK: movl  %cs, (%eax)
 254 // CHECK:  encoding: [0x67,0x66,0x8c,0x08]
 255         movl %cs, (%eax)
 256
 257 // CHECK: movw  %cs, (%eax)
 258 // CHECK:  encoding: [0x67,0x8c,0x08]
 259         movw %cs, (%eax)
 260
 261 // CHECK: movl  %eax, %cs
 262 // CHECK:  encoding: [0x66,0x8e,0xc8]
 263         movl %eax, %cs
 264
 265 // CHECK: movl  (%eax), %cs
 266 // CHECK:  encoding: [0x67,0x66,0x8e,0x08]
 267         movl (%eax), %cs
 268
 269 // CHECK: movw  (%eax), %cs
 270 // CHECK:  encoding: [0x67,0x8e,0x08]
 271         movw (%eax), %cs
 272
 273 // CHECK: movl  %cr0, %eax
 274 // CHECK:  encoding: [0x0f,0x20,0xc0]
 275         movl %cr0,%eax
 276
 277 // CHECK: movl  %cr1, %eax
 278 // CHECK:  encoding: [0x0f,0x20,0xc8]
 279         movl %cr1,%eax
 280
 281 // CHECK: movl  %cr2, %eax
 282 // CHECK:  encoding: [0x0f,0x20,0xd0]
 283         movl %cr2,%eax
 284
 285 // CHECK: movl  %cr3, %eax
 286 // CHECK:  encoding: [0x0f,0x20,0xd8]
 287         movl %cr3,%eax
 288
 289 // CHECK: movl  %cr4, %eax
 290 // CHECK:  encoding: [0x0f,0x20,0xe0]
 291         movl %cr4,%eax
 292
 293 // CHECK: movl  %dr0, %eax
 294 // CHECK:  encoding: [0x0f,0x21,0xc0]
 295         movl %dr0,%eax
 296
 297 // CHECK: movl  %dr1, %eax
 298 // CHECK:  encoding: [0x0f,0x21,0xc8]
 299         movl %dr1,%eax
 300
 301 // CHECK: movl  %dr1, %eax
 302 // CHECK:  encoding: [0x0f,0x21,0xc8]
 303         movl %dr1,%eax
 304
 305 // CHECK: movl  %dr2, %eax
 306 // CHECK:  encoding: [0x0f,0x21,0xd0]
 307         movl %dr2,%eax
 308
 309 // CHECK: movl  %dr3, %eax
 310 // CHECK:  encoding: [0x0f,0x21,0xd8]
 311         movl %dr3,%eax
 312
 313 // CHECK: movl  %dr4, %eax
 314 // CHECK:  encoding: [0x0f,0x21,0xe0]
 315         movl %dr4,%eax
 316
 317 // CHECK: movl  %dr5, %eax
 318 // CHECK:  encoding: [0x0f,0x21,0xe8]
 319         movl %dr5,%eax
 320
 321 // CHECK: movl  %dr6, %eax
 322 // CHECK:  encoding: [0x0f,0x21,0xf0]
 323         movl %dr6,%eax
 324
 325 // CHECK: movl  %dr7, %eax
 326 // CHECK:  encoding: [0x0f,0x21,0xf8]
 327         movl %dr7,%eax
 328
 329 // CHECK: wait
 330 // CHECK:  encoding: [0x9b]
 331         fwait
 332
 333 // CHECK: [0x65,0x66,0x8b,0x06,0x7c,0x00]
 334 // FIXME: This is a correct bug poor encoding: Use 65 66 a1 7c 00
 335         movl    %gs:124, %eax
 336
 337 // CHECK: pusha
 338 // CHECK:  encoding: [0x60]
 339                 pusha
 340
 341 // CHECK: popa
 342 // CHECK:  encoding: [0x61]
 343                 popa
 344
 345 // CHECK: pushaw
 346 // CHECK:  encoding: [0x60]
 347                 pushaw
 348
 349 // CHECK: popaw
 350 // CHECK:  encoding: [0x61]
 351                 popaw
 352
 353 // CHECK: pushal
 354 // CHECK:  encoding: [0x66,0x60]
 355                 pushal
 356
 357 // CHECK: popal
 358 // CHECK:  encoding: [0x66,0x61]
 359                 popal
 360
 361 // CHECK: jmpw *8(%eax)
 362 // CHECK:   encoding: [0x67,0xff,0x60,0x08]
 363         jmp     *8(%eax)
 364
 365 // CHECK: jmpl *8(%eax)
 366 // CHECK:   encoding: [0x67,0x66,0xff,0x60,0x08]
 367         jmpl    *8(%eax)
 368
 369 // CHECK: lcalll $2, $4660
 370 // CHECK:   encoding: [0x66,0x9a,0x34,0x12,0x00,0x00,0x02,0x00]
 371 lcalll $0x2, $0x1234
 372
 373
 374 L1:
 375   jcxz L1
 376 // CHECK: jcxz L1
 377 // CHECK:   encoding: [0xe3,A]
 378   jecxz L1
 379 // CHECK: jecxz L1
 380 // CHECK:   encoding: [0x67,0xe3,A]
 381
 382 iret
 383 // CHECK: iretw
 384 // CHECK: encoding: [0xcf]
 385 iretw
 386 // CHECK: iretw
 387 // CHECK: encoding: [0xcf]
 388 iretl
 389 // CHECK: iretl
 390 // CHECK: encoding: [0x66,0xcf]
 391
 392 sysret
 393 // CHECK: sysretl
 394 // CHECK: encoding: [0x0f,0x07]
 395 sysretl
 396 // CHECK: sysretl
 397 // CHECK: encoding: [0x0f,0x07]
 398
 399 testl   %ecx, -24(%ebp)
 400 // CHECK: testl -24(%ebp), %ecx
 401 testl   -24(%ebp), %ecx
 402 // CHECK: testl -24(%ebp), %ecx
 403
 404
 405 push %cs
 406 // CHECK: pushw %cs
 407 // CHECK: encoding: [0x0e]
 408 push %ds
 409 // CHECK: pushw %ds
 410 // CHECK: encoding: [0x1e]
 411 push %ss
 412 // CHECK: pushw %ss
 413 // CHECK: encoding: [0x16]
 414 push %es
 415 // CHECK: pushw %es
 416 // CHECK: encoding: [0x06]
 417 push %fs
 418 // CHECK: pushw %fs
 419 // CHECK: encoding: [0x0f,0xa0]
 420 push %gs
 421 // CHECK: pushw %gs
 422 // CHECK: encoding: [0x0f,0xa8]
 423
 424 pushw %cs
 425 // CHECK: pushw %cs
 426 // CHECK: encoding: [0x0e]
 427 pushw %ds
 428 // CHECK: pushw %ds
 429 // CHECK: encoding: [0x1e]
 430 pushw %ss
 431 // CHECK: pushw %ss
 432 // CHECK: encoding: [0x16]
 433 pushw %es
 434 // CHECK: pushw %es
 435 // CHECK: encoding: [0x06]
 436 pushw %fs
 437 // CHECK: pushw %fs
 438 // CHECK: encoding: [0x0f,0xa0]
 439 pushw %gs
 440 // CHECK: pushw %gs
 441 // CHECK: encoding: [0x0f,0xa8]
 442
 443 pushl %cs
 444 // CHECK: pushl %cs
 445 // CHECK: encoding: [0x66,0x0e]
 446 pushl %ds
 447 // CHECK: pushl %ds
 448 // CHECK: encoding: [0x66,0x1e]
 449 pushl %ss
 450 // CHECK: pushl %ss
 451 // CHECK: encoding: [0x66,0x16]
 452 pushl %es
 453 // CHECK: pushl %es
 454 // CHECK: encoding: [0x66,0x06]
 455 pushl %fs
 456 // CHECK: pushl %fs
 457 // CHECK: encoding: [0x66,0x0f,0xa0]
 458 pushl %gs
 459 // CHECK: pushl %gs
 460 // CHECK: encoding: [0x66,0x0f,0xa8]
 461
 462 pop %ss
 463 // CHECK: popw  %ss
 464 // CHECK: encoding: [0x17]
 465 pop %ds
 466 // CHECK: popw  %ds
 467 // CHECK: encoding: [0x1f]
 468 pop %es
 469 // CHECK: popw  %es
 470 // CHECK: encoding: [0x07]
 471
 472 popl %ss
 473 // CHECK: popl  %ss
 474 // CHECK: encoding: [0x66,0x17]
 475 popl %ds
 476 // CHECK: popl  %ds
 477 // CHECK: encoding: [0x66,0x1f]
 478 popl %es
 479 // CHECK: popl  %es
 480 // CHECK: encoding: [0x66,0x07]
 481
 482 pushfd
 483 // CHECK: pushfl
 484 popfd
 485 // CHECK: popfl
 486 pushfl
 487 // CHECK: pushfl
 488 popfl
 489 // CHECK: popfl
 490
 491
 492         setc    %bl
 493         setnae  %bl
 494         setnb   %bl
 495         setnc   %bl
 496         setna   %bl
 497         setnbe  %bl
 498         setpe   %bl
 499         setpo   %bl
 500         setnge  %bl
 501         setnl   %bl
 502         setng   %bl
 503         setnle  %bl
 504
 505         setneb  %cl // CHECK: setne %cl
 506         setcb   %bl // CHECK: setb %bl
 507         setnaeb %bl // CHECK: setb %bl
 508
 509
 510 // CHECK: lcalll        $31438, $31438
 511 // CHECK: lcalll        $31438, $31438
 512 // CHECK: ljmpl $31438, $31438
 513 // CHECK: ljmpl $31438, $31438
 514
 515 calll   $0x7ace,$0x7ace
 516 lcalll  $0x7ace,$0x7ace
 517 jmpl    $0x7ace,$0x7ace
 518 ljmpl   $0x7ace,$0x7ace
 519
 520 // CHECK: lcallw        $31438, $31438
 521 // CHECK: lcallw        $31438, $31438
 522 // CHECK: ljmpw $31438, $31438
 523 // CHECK: ljmpw $31438, $31438
 524
 525 callw   $0x7ace,$0x7ace
 526 lcallw  $0x7ace,$0x7ace
 527 jmpw    $0x7ace,$0x7ace
 528 ljmpw   $0x7ace,$0x7ace
 529
 530 // CHECK: lcallw        $31438, $31438
 531 // CHECK: lcallw        $31438, $31438
 532 // CHECK: ljmpw $31438, $31438
 533 // CHECK: ljmpw $31438, $31438
 534
 535 call    $0x7ace,$0x7ace
 536 lcall   $0x7ace,$0x7ace
 537 jmp     $0x7ace,$0x7ace
 538 ljmp    $0x7ace,$0x7ace
 539
 540 // CHECK: calll a
 541  calll a
 542
 543 // CHECK:       incb    %al # encoding: [0xfe,0xc0]
 544         incb %al
 545
 546 // CHECK:       incw    %ax # encoding: [0x40]
 547         incw %ax
 548
 549 // CHECK:       incl    %eax # encoding: [0x66,0x40]
 550         incl %eax
 551
 552 // CHECK:       decb    %al # encoding: [0xfe,0xc8]
 553         decb %al
 554
 555 // CHECK:       decw    %ax # encoding: [0x48]
 556         decw %ax
 557
 558 // CHECK:       decl    %eax # encoding: [0x66,0x48]
 559         decl %eax
 560
 561 // CHECK: pshufw $14, %mm4, %mm0 # encoding: [0x0f,0x70,0xc4,0x0e]
 562 pshufw $14, %mm4, %mm0
 563
 564 // CHECK: pshufw $90, %mm4, %mm0 # encoding: [0x0f,0x70,0xc4,0x5a]
 565 pshufw $90, %mm4, %mm0
 566
 567 // CHECK: aaa
 568 // CHECK:  encoding: [0x37]
 569                 aaa
 570
 571 // CHECK: aad   $1
 572 // CHECK:  encoding: [0xd5,0x01]
 573                 aad     $1
 574
 575 // CHECK: aad
 576 // CHECK:  encoding: [0xd5,0x0a]
 577                 aad     $0xA
 578
 579 // CHECK: aad
 580 // CHECK:  encoding: [0xd5,0x0a]
 581                 aad
 582
 583 // CHECK: aam   $2
 584 // CHECK:  encoding: [0xd4,0x02]
 585                 aam     $2
 586
 587 // CHECK: aam
 588 // CHECK:  encoding: [0xd4,0x0a]
 589                 aam     $0xA
 590
 591 // CHECK: aam
 592 // CHECK:  encoding: [0xd4,0x0a]
 593                 aam
 594
 595 // CHECK: aas
 596 // CHECK:  encoding: [0x3f]
 597                 aas
 598
 599 // CHECK: daa
 600 // CHECK:  encoding: [0x27]
 601                 daa
 602
 603 // CHECK: das
 604 // CHECK:  encoding: [0x2f]
 605                 das
 606
 607 // CHECK: retw  $31438
 608 // CHECK:  encoding: [0xc2,0xce,0x7a]
 609                 retw    $0x7ace
 610
 611 // CHECK: lretw $31438
 612 // CHECK:  encoding: [0xca,0xce,0x7a]
 613                 lretw   $0x7ace
 614
 615 // CHECK: retw  $31438
 616 // CHECK:  encoding: [0xc2,0xce,0x7a]
 617                 ret     $0x7ace
 618
 619 // CHECK: lretw $31438
 620 // CHECK:  encoding: [0xca,0xce,0x7a]
 621                 lret    $0x7ace
 622
 623 // CHECK: retl  $31438
 624 // CHECK:  encoding: [0x66,0xc2,0xce,0x7a]
 625                 retl    $0x7ace
 626
 627 // CHECK: lretl $31438
 628 // CHECK:  encoding: [0x66,0xca,0xce,0x7a]
 629                 lretl   $0x7ace
 630
 631 // CHECK: bound 2(%eax), %bx
 632 // CHECK:  encoding: [0x67,0x62,0x58,0x02]
 633                 bound   2(%eax),%bx
 634
 635 // CHECK: bound 4(%ebx), %ecx
 636 // CHECK:  encoding: [0x67,0x66,0x62,0x4b,0x04]
 637                 bound   4(%ebx),%ecx
 638
 639 // CHECK: arpl  %bx, %bx
 640 // CHECK:  encoding: [0x63,0xdb]
 641                 arpl    %bx,%bx
 642
 643 // CHECK: arpl  %bx, 6(%ecx)
 644 // CHECK:  encoding: [0x67,0x63,0x59,0x06]
 645                 arpl    %bx,6(%ecx)
 646
 647 // CHECK: lgdtw 4(%eax)
 648 // CHECK:  encoding: [0x67,0x0f,0x01,0x50,0x04]
 649                 lgdtw   4(%eax)
 650
 651 // CHECK: lgdtw 4(%eax)
 652 // CHECK:  encoding: [0x67,0x0f,0x01,0x50,0x04]
 653                 lgdt    4(%eax)
 654
 655 // CHECK: lgdtl 4(%eax)
 656 // CHECK:  encoding: [0x67,0x66,0x0f,0x01,0x50,0x04]
 657                 lgdtl   4(%eax)
 658
 659 // CHECK: lidtw 4(%eax)
 660 // CHECK:  encoding: [0x67,0x0f,0x01,0x58,0x04]
 661                 lidtw   4(%eax)
 662
 663 // CHECK: lidtw 4(%eax)
 664 // CHECK:  encoding: [0x67,0x0f,0x01,0x58,0x04]
 665                 lidt    4(%eax)
 666
 667 // CHECK: lidtl 4(%eax)
 668 // CHECK:  encoding: [0x67,0x66,0x0f,0x01,0x58,0x04]
 669                 lidtl   4(%eax)
 670
 671 // CHECK: sgdtw 4(%eax)
 672 // CHECK:  encoding: [0x67,0x0f,0x01,0x40,0x04]
 673                 sgdtw   4(%eax)
 674
 675 // CHECK: sgdtw 4(%eax)
 676 // CHECK:  encoding: [0x67,0x0f,0x01,0x40,0x04]
 677                 sgdt    4(%eax)
 678
 679 // CHECK: sgdtl 4(%eax)
 680 // CHECK:  encoding: [0x67,0x66,0x0f,0x01,0x40,0x04]
 681                 sgdtl   4(%eax)
 682
 683 // CHECK: sidtw 4(%eax)
 684 // CHECK:  encoding: [0x67,0x0f,0x01,0x48,0x04]
 685                 sidtw   4(%eax)
 686
 687 // CHECK: sidtw 4(%eax)
 688 // CHECK:  encoding: [0x67,0x0f,0x01,0x48,0x04]
 689                 sidt    4(%eax)
 690
 691 // CHECK: sidtl 4(%eax)
 692 // CHECK:  encoding: [0x67,0x66,0x0f,0x01,0x48,0x04]
 693                 sidtl   4(%eax)
 694
 695 // CHECK: fcompi        %st(2)
 696 // CHECK:  encoding: [0xdf,0xf2]
 697                 fcompi  %st(2), %st
 698
 699 // CHECK: fcompi        %st(2)
 700 // CHECK:  encoding: [0xdf,0xf2]
 701                 fcompi  %st(2)
 702
 703 // CHECK: fcompi
 704 // CHECK:  encoding: [0xdf,0xf1]
 705                 fcompi
 706
 707 // CHECK: fucompi       %st(2)
 708 // CHECK:  encoding: [0xdf,0xea]
 709                 fucompi %st(2),%st
 710
 711 // CHECK: fucompi       %st(2)
 712 // CHECK:  encoding: [0xdf,0xea]
 713                 fucompi %st(2)
 714
 715 // CHECK: fucompi
 716 // CHECK:  encoding: [0xdf,0xe9]
 717                 fucompi
 718
 719 // CHECK: fldcw 32493
 720 // CHECK:  encoding: [0xd9,0x2e,0xed,0x7e]
 721                 fldcww  0x7eed
 722
 723 // CHECK: fldcw 32493
 724 // CHECK:  encoding: [0xd9,0x2e,0xed,0x7e]
 725                 fldcw   0x7eed
 726
 727 // CHECK: fnstcw        32493
 728 // CHECK:  encoding: [0xd9,0x3e,0xed,0x7e]
 729                 fnstcww 0x7eed
 730
 731 // CHECK: fnstcw        32493
 732 // CHECK:  encoding: [0xd9,0x3e,0xed,0x7e]
 733                 fnstcw  0x7eed
 734
 735 // CHECK: wait
 736 // CHECK:  encoding: [0x9b]
 737                 fstcww  0x7eed
 738
 739 // CHECK: wait
 740 // CHECK:  encoding: [0x9b]
 741                 fstcw   0x7eed
 742
 743 // CHECK: fnstsw        32493
 744 // CHECK:  encoding: [0xdd,0x3e,0xed,0x7e]
 745                 fnstsww 0x7eed
 746
 747 // CHECK: fnstsw        32493
 748 // CHECK:  encoding: [0xdd,0x3e,0xed,0x7e]
 749                 fnstsw  0x7eed
 750
 751 // CHECK: wait
 752 // CHECK:  encoding: [0x9b]
 753                 fstsww  0x7eed
 754
 755 // CHECK: wait
 756 // CHECK:  encoding: [0x9b]
 757                 fstsw   0x7eed
 758
 759 // CHECK: verr  32493
 760 // CHECK:  encoding: [0x0f,0x00,0x26,0xed,0x7e]
 761                 verrw   0x7eed
 762
 763 // CHECK: verr  32493
 764 // CHECK:  encoding: [0x0f,0x00,0x26,0xed,0x7e]
 765                 verr    0x7eed
 766
 767 // CHECK: wait
 768 // CHECK:  encoding: [0x9b]
 769                 fclex
 770
 771 // CHECK: fnclex
 772 // CHECK:  encoding: [0xdb,0xe2]
 773                 fnclex
 774
 775 // CHECK: ud2
 776 // CHECK:  encoding: [0x0f,0x0b]
 777                 ud2
 778
 779 // CHECK: ud2
 780 // CHECK:  encoding: [0x0f,0x0b]
 781                 ud2a
 782
 783 // CHECK: ud2b
 784 // CHECK:  encoding: [0x0f,0xb9]
 785                 ud2b
 786
 787 // CHECK: loope 0
 788 // CHECK: encoding: [0xe1,A]
 789         loopz 0
 790
 791 // CHECK: loopne 0
 792 // CHECK: encoding: [0xe0,A]
 793         loopnz 0
 794
 795 // CHECK: outsb # encoding: [0x6e]
 796 // CHECK: outsb
 797 // CHECK: outsb
 798         outsb
 799         outsb   %ds:(%si), %dx
 800         outsb   (%si), %dx
 801
 802 // CHECK: outsw # encoding: [0x6f]
 803 // CHECK: outsw
 804 // CHECK: outsw
 805         outsw
 806         outsw   %ds:(%si), %dx
 807         outsw   (%si), %dx
 808
 809 // CHECK: outsl # encoding: [0x66,0x6f]
 810 // CHECK: outsl
 811         outsl
 812         outsl   %ds:(%si), %dx
 813         outsl   (%si), %dx
 814
 815 // CHECK: insb # encoding: [0x6c]
 816 // CHECK: insb
 817         insb
 818         insb    %dx, %es:(%di)
 819
 820 // CHECK: insw # encoding: [0x6d]
 821 // CHECK: insw
 822         insw
 823         insw    %dx, %es:(%di)
 824
 825 // CHECK: insl # encoding: [0x66,0x6d]
 826 // CHECK: insl
 827         insl
 828         insl    %dx, %es:(%di)
 829
 830 // CHECK: movsb # encoding: [0xa4]
 831 // CHECK: movsb
 832 // CHECK: movsb
 833         movsb
 834         movsb   %ds:(%si), %es:(%di)
 835         movsb   (%si), %es:(%di)
 836
 837 // CHECK: movsw # encoding: [0xa5]
 838 // CHECK: movsw
 839 // CHECK: movsw
 840         movsw
 841         movsw   %ds:(%si), %es:(%di)
 842         movsw   (%si), %es:(%di)
 843
 844 // CHECK: movsl # encoding: [0x66,0xa5]
 845 // CHECK: movsl
 846 // CHECK: movsl
 847         movsl
 848         movsl   %ds:(%si), %es:(%di)
 849         movsl   (%si), %es:(%di)
 850
 851 // CHECK: lodsb # encoding: [0xac]
 852 // CHECK: lodsb
 853 // CHECK: lodsb
 854 // CHECK: lodsb
 855 // CHECK: lodsb
 856         lodsb
 857         lodsb   %ds:(%si), %al
 858         lodsb   (%si), %al
 859         lods    %ds:(%si), %al
 860         lods    (%si), %al
 861
 862 // CHECK: lodsw # encoding: [0xad]
 863 // CHECK: lodsw
 864 // CHECK: lodsw
 865 // CHECK: lodsw
 866 // CHECK: lodsw
 867         lodsw
 868         lodsw   %ds:(%si), %ax
 869         lodsw   (%si), %ax
 870         lods    %ds:(%si), %ax
 871         lods    (%si), %ax
 872
 873 // CHECK: lodsl # encoding: [0x66,0xad]
 874 // CHECK: lodsl
 875 // CHECK: lodsl
 876 // CHECK: lodsl
 877 // CHECK: lodsl
 878         lodsl
 879         lodsl   %ds:(%si), %eax
 880         lodsl   (%si), %eax
 881         lods    %ds:(%si), %eax
 882         lods    (%si), %eax
 883
 884 // CHECK: stosb # encoding: [0xaa]
 885 // CHECK: stosb
 886 // CHECK: stosb
 887         stosb
 888         stosb   %al, %es:(%di)
 889         stos    %al, %es:(%di)
 890
 891 // CHECK: stosw # encoding: [0xab]
 892 // CHECK: stosw
 893 // CHECK: stosw
 894         stosw
 895         stosw   %ax, %es:(%di)
 896         stos    %ax, %es:(%di)
 897
 898 // CHECK: stosl # encoding: [0x66,0xab]
 899 // CHECK: stosl
 900 // CHECK: stosl
 901         stosl
 902         stosl   %eax, %es:(%di)
 903         stos    %eax, %es:(%di)
 904
 905 // CHECK: strw
 906 // CHECK: encoding: [0x0f,0x00,0xc8]
 907         str %ax
 908
 909 // CHECK: strl
 910 // CHECK: encoding: [0x66,0x0f,0x00,0xc8]
 911         str %eax
 912
 913
 914 // CHECK: fsubp
 915 // CHECK: encoding: [0xde,0xe1]
 916 fsubp %st,%st(1)
 917
 918 // CHECK: fsubp %st(2)
 919 // CHECK: encoding: [0xde,0xe2]
 920 fsubp   %st, %st(2)
 921
 922 // CHECK: xchgl %eax, %eax
 923 // CHECK: encoding: [0x66,0x90]
 924 xchgl %eax, %eax
 925
 926 // CHECK: xchgw %ax, %ax
 927 // CHECK: encoding: [0x90]
 928 xchgw %ax, %ax
 929
 930 // CHECK: xchgl %ecx, %eax
 931 // CHECK: encoding: [0x66,0x91]
 932 xchgl %ecx, %eax
 933
 934 // CHECK: xchgl %ecx, %eax
 935 // CHECK: encoding: [0x66,0x91]
 936 xchgl %eax, %ecx
 937
 938 // CHECK: retw
 939 // CHECK: encoding: [0xc3]
 940 retw
 941
 942 // CHECK: retl
 943 // CHECK: encoding: [0x66,0xc3]
 944 retl
 945
 946 // CHECK: lretw
 947 // CHECK: encoding: [0xcb]
 948 lretw
 949
 950 // CHECK: lretl
 951 // CHECK: encoding: [0x66,0xcb]
 952 lretl