test/MC/X86/x86-16.s

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