src/mesa/drivers/dri/i965/brw_disasm.c

   1 /*
   2  * Copyright © 2008 Keith Packard
   3  *
   4  * Permission to use, copy, modify, distribute, and sell this software and its
   5  * documentation for any purpose is hereby granted without fee, provided that
   6  * the above copyright notice appear in all copies and that both that copyright
   7  * notice and this permission notice appear in supporting documentation, and
   8  * that the name of the copyright holders not be used in advertising or
   9  * publicity pertaining to distribution of the software without specific,
  10  * written prior permission.  The copyright holders make no representations
  11  * about the suitability of this software for any purpose.  It is provided "as
  12  * is" without express or implied warranty.
  13  *
  14  * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
  15  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
  16  * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
  17  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
  18  * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
  19  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
  20  * OF THIS SOFTWARE.
  21  */
  22
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26 #include <getopt.h>
  27 #include <unistd.h>
  28 #include <stdarg.h>
  29
  30 #include "main/mtypes.h"
  31
  32 #include "brw_context.h"
  33 #include "brw_defines.h"
  34
  35 struct {
  36     char    *name;
  37     int     nsrc;
  38     int     ndst;
  39 } opcode[128] = {
  40     [BRW_OPCODE_MOV] = { .name = "mov", .nsrc = 1, .ndst = 1 },
  41     [BRW_OPCODE_FRC] = { .name = "frc", .nsrc = 1, .ndst = 1 },
  42     [BRW_OPCODE_RNDU] = { .name = "rndu", .nsrc = 1, .ndst = 1 },
  43     [BRW_OPCODE_RNDD] = { .name = "rndd", .nsrc = 1, .ndst = 1 },
  44     [BRW_OPCODE_RNDE] = { .name = "rnde", .nsrc = 1, .ndst = 1 },
  45     [BRW_OPCODE_RNDZ] = { .name = "rndz", .nsrc = 1, .ndst = 1 },
  46     [BRW_OPCODE_NOT] = { .name = "not", .nsrc = 1, .ndst = 1 },
  47     [BRW_OPCODE_LZD] = { .name = "lzd", .nsrc = 1, .ndst = 1 },
  48
  49     [BRW_OPCODE_MUL] = { .name = "mul", .nsrc = 2, .ndst = 1 },
  50     [BRW_OPCODE_MAC] = { .name = "mac", .nsrc = 2, .ndst = 1 },
  51     [BRW_OPCODE_MACH] = { .name = "mach", .nsrc = 2, .ndst = 1 },
  52     [BRW_OPCODE_LINE] = { .name = "line", .nsrc = 2, .ndst = 1 },
  53     [BRW_OPCODE_PLN] = { .name = "pln", .nsrc = 2, .ndst = 1 },
  54     [BRW_OPCODE_SAD2] = { .name = "sad2", .nsrc = 2, .ndst = 1 },
  55     [BRW_OPCODE_SADA2] = { .name = "sada2", .nsrc = 2, .ndst = 1 },
  56     [BRW_OPCODE_DP4] = { .name = "dp4", .nsrc = 2, .ndst = 1 },
  57     [BRW_OPCODE_DPH] = { .name = "dph", .nsrc = 2, .ndst = 1 },
  58     [BRW_OPCODE_DP3] = { .name = "dp3", .nsrc = 2, .ndst = 1 },
  59     [BRW_OPCODE_DP2] = { .name = "dp2", .nsrc = 2, .ndst = 1 },
  60     [BRW_OPCODE_MATH] = { .name = "math", .nsrc = 2, .ndst = 1 },
  61
  62     [BRW_OPCODE_AVG] = { .name = "avg", .nsrc = 2, .ndst = 1 },
  63     [BRW_OPCODE_ADD] = { .name = "add", .nsrc = 2, .ndst = 1 },
  64     [BRW_OPCODE_SEL] = { .name = "sel", .nsrc = 2, .ndst = 1 },
  65     [BRW_OPCODE_AND] = { .name = "and", .nsrc = 2, .ndst = 1 },
  66     [BRW_OPCODE_OR] = { .name = "or", .nsrc = 2, .ndst = 1 },
  67     [BRW_OPCODE_XOR] = { .name = "xor", .nsrc = 2, .ndst = 1 },
  68     [BRW_OPCODE_SHR] = { .name = "shr", .nsrc = 2, .ndst = 1 },
  69     [BRW_OPCODE_SHL] = { .name = "shl", .nsrc = 2, .ndst = 1 },
  70     [BRW_OPCODE_ASR] = { .name = "asr", .nsrc = 2, .ndst = 1 },
  71     [BRW_OPCODE_CMP] = { .name = "cmp", .nsrc = 2, .ndst = 1 },
  72     [BRW_OPCODE_CMPN] = { .name = "cmpn", .nsrc = 2, .ndst = 1 },
  73
  74     [BRW_OPCODE_SEND] = { .name = "send", .nsrc = 1, .ndst = 1 },
  75     [BRW_OPCODE_NOP] = { .name = "nop", .nsrc = 0, .ndst = 0 },
  76     [BRW_OPCODE_JMPI] = { .name = "jmpi", .nsrc = 1, .ndst = 0 },
  77     [BRW_OPCODE_IF] = { .name = "if", .nsrc = 2, .ndst = 0 },
  78     [BRW_OPCODE_IFF] = { .name = "iff", .nsrc = 2, .ndst = 1 },
  79     [BRW_OPCODE_WHILE] = { .name = "while", .nsrc = 2, .ndst = 0 },
  80     [BRW_OPCODE_ELSE] = { .name = "else", .nsrc = 2, .ndst = 0 },
  81     [BRW_OPCODE_BREAK] = { .name = "break", .nsrc = 2, .ndst = 0 },
  82     [BRW_OPCODE_CONTINUE] = { .name = "cont", .nsrc = 1, .ndst = 0 },
  83     [BRW_OPCODE_HALT] = { .name = "halt", .nsrc = 1, .ndst = 0 },
  84     [BRW_OPCODE_MSAVE] = { .name = "msave", .nsrc = 1, .ndst = 1 },
  85     [BRW_OPCODE_PUSH] = { .name = "push", .nsrc = 1, .ndst = 1 },
  86     [BRW_OPCODE_MRESTORE] = { .name = "mrest", .nsrc = 1, .ndst = 1 },
  87     [BRW_OPCODE_POP] = { .name = "pop", .nsrc = 2, .ndst = 0 },
  88     [BRW_OPCODE_WAIT] = { .name = "wait", .nsrc = 1, .ndst = 0 },
  89     [BRW_OPCODE_DO] = { .name = "do", .nsrc = 0, .ndst = 0 },
  90     [BRW_OPCODE_ENDIF] = { .name = "endif", .nsrc = 2, .ndst = 0 },
  91 };
  92
  93 char *conditional_modifier[16] = {
  94     [BRW_CONDITIONAL_NONE] = "",
  95     [BRW_CONDITIONAL_Z] = ".e",
  96     [BRW_CONDITIONAL_NZ] = ".ne",
  97     [BRW_CONDITIONAL_G] = ".g",
  98     [BRW_CONDITIONAL_GE] = ".ge",
  99     [BRW_CONDITIONAL_L] = ".l",
 100     [BRW_CONDITIONAL_LE] = ".le",
 101     [BRW_CONDITIONAL_R] = ".r",
 102     [BRW_CONDITIONAL_O] = ".o",
 103     [BRW_CONDITIONAL_U] = ".u",
 104 };
 105
 106 char *negate[2] = {
 107     [0] = "",
 108     [1] = "-",
 109 };
 110
 111 char *_abs[2] = {
 112     [0] = "",
 113     [1] = "(abs)",
 114 };
 115
 116 char *vert_stride[16] = {
 117     [0] = "0",
 118     [1] = "1",
 119     [2] = "2",
 120     [3] = "4",
 121     [4] = "8",
 122     [5] = "16",
 123     [6] = "32",
 124     [15] = "VxH",
 125 };
 126
 127 char *width[8] = {
 128     [0] = "1",
 129     [1] = "2",
 130     [2] = "4",
 131     [3] = "8",
 132     [4] = "16",
 133 };
 134
 135 char *horiz_stride[4] = {
 136     [0] = "0",
 137     [1] = "1",
 138     [2] = "2",
 139     [3] = "4"
 140 };
 141
 142 char *chan_sel[4] = {
 143     [0] = "x",
 144     [1] = "y",
 145     [2] = "z",
 146     [3] = "w",
 147 };
 148
 149 char *dest_condmod[16] = {
 150 };
 151
 152 char *debug_ctrl[2] = {
 153     [0] = "",
 154     [1] = ".breakpoint"
 155 };
 156
 157 char *saturate[2] = {
 158     [0] = "",
 159     [1] = ".sat"
 160 };
 161
 162 char *exec_size[8] = {
 163     [0] = "1",
 164     [1] = "2",
 165     [2] = "4",
 166     [3] = "8",
 167     [4] = "16",
 168     [5] = "32"
 169 };
 170
 171 char *pred_inv[2] = {
 172     [0] = "+",
 173     [1] = "-"
 174 };
 175
 176 char *pred_ctrl_align16[16] = {
 177     [1] = "",
 178     [2] = ".x",
 179     [3] = ".y",
 180     [4] = ".z",
 181     [5] = ".w",
 182     [6] = ".any4h",
 183     [7] = ".all4h",
 184 };
 185
 186 char *pred_ctrl_align1[16] = {
 187     [1] = "",
 188     [2] = ".anyv",
 189     [3] = ".allv",
 190     [4] = ".any2h",
 191     [5] = ".all2h",
 192     [6] = ".any4h",
 193     [7] = ".all4h",
 194     [8] = ".any8h",
 195     [9] = ".all8h",
 196     [10] = ".any16h",
 197     [11] = ".all16h",
 198 };
 199
 200 char *thread_ctrl[4] = {
 201     [0] = "",
 202     [2] = "switch"
 203 };
 204
 205 char *compr_ctrl[4] = {
 206     [0] = "",
 207     [1] = "sechalf",
 208     [2] = "compr",
 209 };
 210
 211 char *dep_ctrl[4] = {
 212     [0] = "",
 213     [1] = "NoDDClr",
 214     [2] = "NoDDChk",
 215     [3] = "NoDDClr,NoDDChk",
 216 };
 217
 218 char *mask_ctrl[4] = {
 219     [0] = "",
 220     [1] = "nomask",
 221 };
 222
 223 char *access_mode[2] = {
 224     [0] = "align1",
 225     [1] = "align16",
 226 };
 227
 228 char *reg_encoding[8] = {
 229     [0] = "UD",
 230     [1] = "D",
 231     [2] = "UW",
 232     [3] = "W",
 233     [4] = "UB",
 234     [5] = "B",
 235     [7] = "F"
 236 };
 237
 238 char *imm_encoding[8] = {
 239     [0] = "UD",
 240     [1] = "D",
 241     [2] = "UW",
 242     [3] = "W",
 243     [5] = "VF",
 244     [6] = "V",
 245     [7] = "F"
 246 };
 247
 248 char *reg_file[4] = {
 249     [0] = "A",
 250     [1] = "g",
 251     [2] = "m",
 252     [3] = "imm",
 253 };
 254
 255 char *writemask[16] = {
 256     [0x0] = ".",
 257     [0x1] = ".x",
 258     [0x2] = ".y",
 259     [0x3] = ".xy",
 260     [0x4] = ".z",
 261     [0x5] = ".xz",
 262     [0x6] = ".yz",
 263     [0x7] = ".xyz",
 264     [0x8] = ".w",
 265     [0x9] = ".xw",
 266     [0xa] = ".yw",
 267     [0xb] = ".xyw",
 268     [0xc] = ".zw",
 269     [0xd] = ".xzw",
 270     [0xe] = ".yzw",
 271     [0xf] = "",
 272 };
 273
 274 char *end_of_thread[2] = {
 275     [0] = "",
 276     [1] = "EOT"
 277 };
 278
 279 char *target_function[16] = {
 280     [BRW_MESSAGE_TARGET_NULL] = "null",
 281     [BRW_MESSAGE_TARGET_MATH] = "math",
 282     [BRW_MESSAGE_TARGET_SAMPLER] = "sampler",
 283     [BRW_MESSAGE_TARGET_GATEWAY] = "gateway",
 284     [BRW_MESSAGE_TARGET_DATAPORT_READ] = "read",
 285     [BRW_MESSAGE_TARGET_DATAPORT_WRITE] = "write",
 286     [BRW_MESSAGE_TARGET_URB] = "urb",
 287     [BRW_MESSAGE_TARGET_THREAD_SPAWNER] = "thread_spawner"
 288 };
 289
 290 char *math_function[16] = {
 291     [BRW_MATH_FUNCTION_INV] = "inv",
 292     [BRW_MATH_FUNCTION_LOG] = "log",
 293     [BRW_MATH_FUNCTION_EXP] = "exp",
 294     [BRW_MATH_FUNCTION_SQRT] = "sqrt",
 295     [BRW_MATH_FUNCTION_RSQ] = "rsq",
 296     [BRW_MATH_FUNCTION_SIN] = "sin",
 297     [BRW_MATH_FUNCTION_COS] = "cos",
 298     [BRW_MATH_FUNCTION_SINCOS] = "sincos",
 299     [BRW_MATH_FUNCTION_TAN] = "tan",
 300     [BRW_MATH_FUNCTION_POW] = "pow",
 301     [BRW_MATH_FUNCTION_INT_DIV_QUOTIENT_AND_REMAINDER] = "intdivmod",
 302     [BRW_MATH_FUNCTION_INT_DIV_QUOTIENT] = "intmod",
 303     [BRW_MATH_FUNCTION_INT_DIV_REMAINDER] = "intdiv",
 304 };
 305
 306 char *math_saturate[2] = {
 307     [0] = "",
 308     [1] = "sat"
 309 };
 310
 311 char *math_signed[2] = {
 312     [0] = "",
 313     [1] = "signed"
 314 };
 315
 316 char *math_scalar[2] = {
 317     [0] = "",
 318     [1] = "scalar"
 319 };
 320
 321 char *math_precision[2] = {
 322     [0] = "",
 323     [1] = "partial_precision"
 324 };
 325
 326 char *urb_swizzle[4] = {
 327     [BRW_URB_SWIZZLE_NONE] = "",
 328     [BRW_URB_SWIZZLE_INTERLEAVE] = "interleave",
 329     [BRW_URB_SWIZZLE_TRANSPOSE] = "transpose",
 330 };
 331
 332 char *urb_allocate[2] = {
 333     [0] = "",
 334     [1] = "allocate"
 335 };
 336
 337 char *urb_used[2] = {
 338     [0] = "",
 339     [1] = "used"
 340 };
 341
 342 char *urb_complete[2] = {
 343     [0] = "",
 344     [1] = "complete"
 345 };
 346
 347 char *sampler_target_format[4] = {
 348     [0] = "F",
 349     [2] = "UD",
 350     [3] = "D"
 351 };
 352
 353
 354 static int column;
 355
 356 static int string (FILE *file, char *string)
 357 {
 358     fputs (string, file);
 359     column += strlen (string);
 360     return 0;
 361 }
 362
 363 static int format (FILE *f, char *format, ...)
 364 {
 365     char    buf[1024];
 366     va_list     args;
 367     va_start (args, format);
 368
 369     vsnprintf (buf, sizeof (buf) - 1, format, args);
 370     va_end (args);
 371     string (f, buf);
 372     return 0;
 373 }
 374
 375 static int newline (FILE *f)
 376 {
 377     putc ('\n', f);
 378     column = 0;
 379     return 0;
 380 }
 381
 382 static int pad (FILE *f, int c)
 383 {
 384     do
 385         string (f, " ");
 386     while (column < c);
 387     return 0;
 388 }
 389
 390 static int control (FILE *file, char *name, char *ctrl[], GLuint id, int *space)
 391 {
 392     if (!ctrl[id]) {
 393         fprintf (file, "*** invalid %s value %d ",
 394                  name, id);
 395         return 1;
 396     }
 397     if (ctrl[id][0])
 398     {
 399         if (space && *space)
 400             string (file, " ");
 401         string (file, ctrl[id]);
 402         if (space)
 403             *space = 1;
 404     }
 405     return 0;
 406 }
 407
 408 static int print_opcode (FILE *file, int id)
 409 {
 410     if (!opcode[id].name) {
 411         format (file, "*** invalid opcode value %d ", id);
 412         return 1;
 413     }
 414     string (file, opcode[id].name);
 415     return 0;
 416 }
 417
 418 static int reg (FILE *file, GLuint _reg_file, GLuint _reg_nr)
 419 {
 420     int err = 0;
 421     if (_reg_file == BRW_ARCHITECTURE_REGISTER_FILE) {
 422         switch (_reg_nr & 0xf0) {
 423         case BRW_ARF_NULL:
 424             string (file, "null");
 425             return -1;
 426         case BRW_ARF_ADDRESS:
 427             format (file, "a%d", _reg_nr & 0x0f);
 428             break;
 429         case BRW_ARF_ACCUMULATOR:
 430             format (file, "acc%d", _reg_nr & 0x0f);
 431             break;
 432         case BRW_ARF_MASK:
 433             format (file, "mask%d", _reg_nr & 0x0f);
 434             break;
 435         case BRW_ARF_MASK_STACK:
 436             format (file, "msd%d", _reg_nr & 0x0f);
 437             break;
 438         case BRW_ARF_STATE:
 439             format (file, "sr%d", _reg_nr & 0x0f);
 440             break;
 441         case BRW_ARF_CONTROL:
 442             format (file, "cr%d", _reg_nr & 0x0f);
 443             break;
 444         case BRW_ARF_NOTIFICATION_COUNT:
 445             format (file, "n%d", _reg_nr & 0x0f);
 446             break;
 447         case BRW_ARF_IP:
 448             string (file, "ip");
 449             return -1;
 450             break;
 451         default:
 452             format (file, "ARF%d", _reg_nr);
 453             break;
 454         }
 455     } else {
 456         err  |= control (file, "src reg file", reg_file, _reg_file, NULL);
 457         format (file, "%d", _reg_nr);
 458     }
 459     return err;
 460 }
 461
 462 static int dest (FILE *file, struct brw_instruction *inst)
 463 {
 464     int err = 0;
 465
 466     if (inst->header.access_mode == BRW_ALIGN_1)
 467     {
 468         if (inst->bits1.da1.dest_address_mode == BRW_ADDRESS_DIRECT)
 469         {
 470             err |= reg (file, inst->bits1.da1.dest_reg_file, inst->bits1.da1.dest_reg_nr);
 471             if (err == -1)
 472                 return 0;
 473             if (inst->bits1.da1.dest_subreg_nr)
 474                 format (file, ".%d", inst->bits1.da1.dest_subreg_nr);
 475             format (file, "<%d>", inst->bits1.da1.dest_horiz_stride);
 476             err |= control (file, "dest reg encoding", reg_encoding, inst->bits1.da1.dest_reg_type, NULL);
 477         }
 478         else
 479         {
 480             string (file, "g[a0");
 481             if (inst->bits1.ia1.dest_subreg_nr)
 482                 format (file, ".%d", inst->bits1.ia1.dest_subreg_nr);
 483             if (inst->bits1.ia1.dest_indirect_offset)
 484                 format (file, " %d", inst->bits1.ia1.dest_indirect_offset);
 485             string (file, "]");
 486             format (file, "<%d>", inst->bits1.ia1.dest_horiz_stride);
 487             err |= control (file, "dest reg encoding", reg_encoding, inst->bits1.ia1.dest_reg_type, NULL);
 488         }
 489     }
 490     else
 491     {
 492         if (inst->bits1.da16.dest_address_mode == BRW_ADDRESS_DIRECT)
 493         {
 494             err |= reg (file, inst->bits1.da16.dest_reg_file, inst->bits1.da16.dest_reg_nr);
 495             if (err == -1)
 496                 return 0;
 497             if (inst->bits1.da16.dest_subreg_nr)
 498                 format (file, ".%d", inst->bits1.da16.dest_subreg_nr);
 499             string (file, "<1>");
 500             err |= control (file, "writemask", writemask, inst->bits1.da16.dest_writemask, NULL);
 501             err |= control (file, "dest reg encoding", reg_encoding, inst->bits1.da16.dest_reg_type, NULL);
 502         }
 503         else
 504         {
 505             err = 1;
 506             string (file, "Indirect align16 address mode not supported");
 507         }
 508     }
 509
 510     return 0;
 511 }
 512
 513 static int src_align1_region (FILE *file,
 514                               GLuint _vert_stride, GLuint _width, GLuint _horiz_stride)
 515 {
 516     int err = 0;
 517     string (file, "<");
 518     err |= control (file, "vert stride", vert_stride, _vert_stride, NULL);
 519     string (file, ",");
 520     err |= control (file, "width", width, _width, NULL);
 521     string (file, ",");
 522     err |= control (file, "horiz_stride", horiz_stride, _horiz_stride, NULL);
 523     string (file, ">");
 524     return err;
 525 }
 526
 527 static int src_da1 (FILE *file, GLuint type, GLuint _reg_file,
 528                     GLuint _vert_stride, GLuint _width, GLuint _horiz_stride,
 529                     GLuint reg_num, GLuint sub_reg_num, GLuint __abs, GLuint _negate)
 530 {
 531     int err = 0;
 532     err |= control (file, "negate", negate, _negate, NULL);
 533     err |= control (file, "abs", _abs, __abs, NULL);
 534
 535     err |= reg (file, _reg_file, reg_num);
 536     if (err == -1)
 537         return 0;
 538     if (sub_reg_num)
 539         format (file, ".%d", sub_reg_num);
 540     src_align1_region (file, _vert_stride, _width, _horiz_stride);
 541     err |= control (file, "src reg encoding", reg_encoding, type, NULL);
 542     return err;
 543 }
 544
 545 static int src_ia1 (FILE *file,
 546                     GLuint type,
 547                     GLuint _reg_file,
 548                     GLint _addr_imm,
 549                     GLuint _addr_subreg_nr,
 550                     GLuint _negate,
 551                     GLuint __abs,
 552                     GLuint _addr_mode,
 553                     GLuint _horiz_stride,
 554                     GLuint _width,
 555                     GLuint _vert_stride)
 556 {
 557     int err = 0;
 558     err |= control (file, "negate", negate, _negate, NULL);
 559     err |= control (file, "abs", _abs, __abs, NULL);
 560
 561     string (file, "g[a0");
 562     if (_addr_subreg_nr)
 563         format (file, ".%d", _addr_subreg_nr);
 564     if (_addr_imm)
 565         format (file, " %d", _addr_imm);
 566     string (file, "]");
 567     src_align1_region (file, _vert_stride, _width, _horiz_stride);
 568     err |= control (file, "src reg encoding", reg_encoding, type, NULL);
 569     return err;
 570 }
 571
 572 static int src_da16 (FILE *file,
 573                      GLuint _reg_type,
 574                      GLuint _reg_file,
 575                      GLuint _vert_stride,
 576                      GLuint _reg_nr,
 577                      GLuint _subreg_nr,
 578                      GLuint __abs,
 579                      GLuint _negate,
 580                      GLuint swz_x,
 581                      GLuint swz_y,
 582                      GLuint swz_z,
 583                      GLuint swz_w)
 584 {
 585     int err = 0;
 586     err |= control (file, "negate", negate, _negate, NULL);
 587     err |= control (file, "abs", _abs, __abs, NULL);
 588
 589     err |= reg (file, _reg_file, _reg_nr);
 590     if (err == -1)
 591         return 0;
 592     if (_subreg_nr)
 593         format (file, ".%d", _subreg_nr);
 594     string (file, "<");
 595     err |= control (file, "vert stride", vert_stride, _vert_stride, NULL);
 596     string (file, ",1,1>");
 597     err |= control (file, "src da16 reg type", reg_encoding, _reg_type, NULL);
 598     /*
 599      * Three kinds of swizzle display:
 600      *  identity - nothing printed
 601      *  1->all   - print the single channel
 602      *  1->1     - print the mapping
 603      */
 604     if (swz_x == BRW_CHANNEL_X &&
 605         swz_y == BRW_CHANNEL_Y &&
 606         swz_z == BRW_CHANNEL_Z &&
 607         swz_w == BRW_CHANNEL_W)
 608     {
 609         ;
 610     }
 611     else if (swz_x == swz_y && swz_x == swz_z && swz_x == swz_w)
 612     {
 613         string (file, ".");
 614         err |= control (file, "channel select", chan_sel, swz_x, NULL);
 615     }
 616     else
 617     {
 618         string (file, ".");
 619         err |= control (file, "channel select", chan_sel, swz_x, NULL);
 620         err |= control (file, "channel select", chan_sel, swz_y, NULL);
 621         err |= control (file, "channel select", chan_sel, swz_z, NULL);
 622         err |= control (file, "channel select", chan_sel, swz_w, NULL);
 623     }
 624     return err;
 625 }
 626
 627
 628 static int imm (FILE *file, GLuint type, struct brw_instruction *inst) {
 629     switch (type) {
 630     case BRW_REGISTER_TYPE_UD:
 631         format (file, "0x%08xUD", inst->bits3.ud);
 632         break;
 633     case BRW_REGISTER_TYPE_D:
 634         format (file, "%dD", inst->bits3.d);
 635         break;
 636     case BRW_REGISTER_TYPE_UW:
 637         format (file, "0x%04xUW", (uint16_t) inst->bits3.ud);
 638         break;
 639     case BRW_REGISTER_TYPE_W:
 640         format (file, "%dW", (int16_t) inst->bits3.d);
 641         break;
 642     case BRW_REGISTER_TYPE_UB:
 643         format (file, "0x%02xUB", (int8_t) inst->bits3.ud);
 644         break;
 645     case BRW_REGISTER_TYPE_VF:
 646         format (file, "Vector Float");
 647         break;
 648     case BRW_REGISTER_TYPE_V:
 649         format (file, "0x%08xV", inst->bits3.ud);
 650         break;
 651     case BRW_REGISTER_TYPE_F:
 652         format (file, "%-gF", inst->bits3.f);
 653     }
 654     return 0;
 655 }
 656
 657 static int src0 (FILE *file, struct brw_instruction *inst)
 658 {
 659     if (inst->bits1.da1.src0_reg_file == BRW_IMMEDIATE_VALUE)
 660         return imm (file, inst->bits1.da1.src0_reg_type,
 661                     inst);
 662     else if (inst->header.access_mode == BRW_ALIGN_1)
 663     {
 664         if (inst->bits2.da1.src0_address_mode == BRW_ADDRESS_DIRECT)
 665         {
 666             return src_da1 (file,
 667                             inst->bits1.da1.src0_reg_type,
 668                             inst->bits1.da1.src0_reg_file,
 669                             inst->bits2.da1.src0_vert_stride,
 670                             inst->bits2.da1.src0_width,
 671                             inst->bits2.da1.src0_horiz_stride,
 672                             inst->bits2.da1.src0_reg_nr,
 673                             inst->bits2.da1.src0_subreg_nr,
 674                             inst->bits2.da1.src0_abs,
 675                             inst->bits2.da1.src0_negate);
 676         }
 677         else
 678         {
 679             return src_ia1 (file,
 680                             inst->bits1.ia1.src0_reg_type,
 681                             inst->bits1.ia1.src0_reg_file,
 682                             inst->bits2.ia1.src0_indirect_offset,
 683                             inst->bits2.ia1.src0_subreg_nr,
 684                             inst->bits2.ia1.src0_negate,
 685                             inst->bits2.ia1.src0_abs,
 686                             inst->bits2.ia1.src0_address_mode,
 687                             inst->bits2.ia1.src0_horiz_stride,
 688                             inst->bits2.ia1.src0_width,
 689                             inst->bits2.ia1.src0_vert_stride);
 690         }
 691     }
 692     else
 693     {
 694         if (inst->bits2.da16.src0_address_mode == BRW_ADDRESS_DIRECT)
 695         {
 696             return src_da16 (file,
 697                              inst->bits1.da16.src0_reg_type,
 698                              inst->bits1.da16.src0_reg_file,
 699                              inst->bits2.da16.src0_vert_stride,
 700                              inst->bits2.da16.src0_reg_nr,
 701                              inst->bits2.da16.src0_subreg_nr,
 702                              inst->bits2.da16.src0_abs,
 703                              inst->bits2.da16.src0_negate,
 704                              inst->bits2.da16.src0_swz_x,
 705                              inst->bits2.da16.src0_swz_y,
 706                              inst->bits2.da16.src0_swz_z,
 707                              inst->bits2.da16.src0_swz_w);
 708         }
 709         else
 710         {
 711             string (file, "Indirect align16 address mode not supported");
 712             return 1;
 713         }
 714     }
 715 }
 716
 717 static int src1 (FILE *file, struct brw_instruction *inst)
 718 {
 719     if (inst->bits1.da1.src1_reg_file == BRW_IMMEDIATE_VALUE)
 720         return imm (file, inst->bits1.da1.src1_reg_type,
 721                     inst);
 722     else if (inst->header.access_mode == BRW_ALIGN_1)
 723     {
 724         if (inst->bits3.da1.src1_address_mode == BRW_ADDRESS_DIRECT)
 725         {
 726             return src_da1 (file,
 727                             inst->bits1.da1.src1_reg_type,
 728                             inst->bits1.da1.src1_reg_file,
 729                             inst->bits3.da1.src1_vert_stride,
 730                             inst->bits3.da1.src1_width,
 731                             inst->bits3.da1.src1_horiz_stride,
 732                             inst->bits3.da1.src1_reg_nr,
 733                             inst->bits3.da1.src1_subreg_nr,
 734                             inst->bits3.da1.src1_abs,
 735                             inst->bits3.da1.src1_negate);
 736         }
 737         else
 738         {
 739             return src_ia1 (file,
 740                             inst->bits1.ia1.src1_reg_type,
 741                             inst->bits1.ia1.src1_reg_file,
 742                             inst->bits3.ia1.src1_indirect_offset,
 743                             inst->bits3.ia1.src1_subreg_nr,
 744                             inst->bits3.ia1.src1_negate,
 745                             inst->bits3.ia1.src1_abs,
 746                             inst->bits3.ia1.src1_address_mode,
 747                             inst->bits3.ia1.src1_horiz_stride,
 748                             inst->bits3.ia1.src1_width,
 749                             inst->bits3.ia1.src1_vert_stride);
 750         }
 751     }
 752     else
 753     {
 754         if (inst->bits3.da16.src1_address_mode == BRW_ADDRESS_DIRECT)
 755         {
 756             return src_da16 (file,
 757                              inst->bits1.da16.src1_reg_type,
 758                              inst->bits1.da16.src1_reg_file,
 759                              inst->bits3.da16.src1_vert_stride,
 760                              inst->bits3.da16.src1_reg_nr,
 761                              inst->bits3.da16.src1_subreg_nr,
 762                              inst->bits3.da16.src1_abs,
 763                              inst->bits3.da16.src1_negate,
 764                              inst->bits3.da16.src1_swz_x,
 765                              inst->bits3.da16.src1_swz_y,
 766                              inst->bits3.da16.src1_swz_z,
 767                              inst->bits3.da16.src1_swz_w);
 768         }
 769         else
 770         {
 771             string (file, "Indirect align16 address mode not supported");
 772             return 1;
 773         }
 774     }
 775 }
 776
 777 int brw_disasm (FILE *file, struct brw_instruction *inst)
 778 {
 779     int err = 0;
 780     int space = 0;
 781
 782     if (inst->header.predicate_control) {
 783         string (file, "(");
 784         err |= control (file, "predicate inverse", pred_inv, inst->header.predicate_inverse, NULL);
 785         string (file, "f0");
 786         if (inst->bits2.da1.flag_reg_nr)
 787             format (file, ".%d", inst->bits2.da1.flag_reg_nr);
 788         if (inst->header.access_mode == BRW_ALIGN_1)
 789             err |= control (file, "predicate control align1", pred_ctrl_align1,
 790                             inst->header.predicate_control, NULL);
 791         else
 792             err |= control (file, "predicate control align16", pred_ctrl_align16,
 793                             inst->header.predicate_control, NULL);
 794         string (file, ") ");
 795     }
 796
 797     err |= print_opcode (file, inst->header.opcode);
 798     err |= control (file, "saturate", saturate, inst->header.saturate, NULL);
 799     err |= control (file, "debug control", debug_ctrl, inst->header.debug_control, NULL);
 800
 801     if (inst->header.opcode == BRW_OPCODE_MATH) {
 802         string (file, " ");
 803         err |= control (file, "function", math_function,
 804                         inst->header.destreg__conditionalmod, NULL);
 805     } else if (inst->header.opcode != BRW_OPCODE_SEND)
 806         err |= control (file, "conditional modifier", conditional_modifier,
 807                         inst->header.destreg__conditionalmod, NULL);
 808
 809     if (inst->header.opcode != BRW_OPCODE_NOP) {
 810         string (file, "(");
 811         err |= control (file, "execution size", exec_size, inst->header.execution_size, NULL);
 812         string (file, ")");
 813     }
 814
 815     if (inst->header.opcode == BRW_OPCODE_SEND)
 816         format (file, " %d", inst->header.destreg__conditionalmod);
 817
 818     if (opcode[inst->header.opcode].ndst > 0) {
 819         pad (file, 16);
 820         err |= dest (file, inst);
 821     }
 822     if (opcode[inst->header.opcode].nsrc > 0) {
 823         pad (file, 32);
 824         err |= src0 (file, inst);
 825     }
 826     if (opcode[inst->header.opcode].nsrc > 1) {
 827         pad (file, 48);
 828         err |= src1 (file, inst);
 829     }
 830
 831     if (inst->header.opcode == BRW_OPCODE_SEND) {
 832         newline (file);
 833         pad (file, 16);
 834         space = 0;
 835         err |= control (file, "target function", target_function,
 836                         inst->bits3.generic.msg_target, &space);
 837         switch (inst->bits3.generic.msg_target) {
 838         case BRW_MESSAGE_TARGET_MATH:
 839             err |= control (file, "math function", math_function,
 840                             inst->bits3.math.function, &space);
 841             err |= control (file, "math saturate", math_saturate,
 842                             inst->bits3.math.saturate, &space);
 843             err |= control (file, "math signed", math_signed,
 844                             inst->bits3.math.int_type, &space);
 845             err |= control (file, "math scalar", math_scalar,
 846                             inst->bits3.math.data_type, &space);
 847             err |= control (file, "math precision", math_precision,
 848                             inst->bits3.math.precision, &space);
 849             break;
 850         case BRW_MESSAGE_TARGET_SAMPLER:
 851             format (file, " (%d, %d, ",
 852                     inst->bits3.sampler.binding_table_index,
 853                     inst->bits3.sampler.sampler);
 854             err |= control (file, "sampler target format", sampler_target_format,
 855                             inst->bits3.sampler.return_format, NULL);
 856             string (file, ")");
 857             break;
 858         case BRW_MESSAGE_TARGET_DATAPORT_WRITE:
 859             format (file, " (%d, %d, %d, %d)",
 860                     inst->bits3.dp_write.binding_table_index,
 861                     (inst->bits3.dp_write.pixel_scoreboard_clear << 3) |
 862                     inst->bits3.dp_write.msg_control,
 863                     inst->bits3.dp_write.msg_type,
 864                     inst->bits3.dp_write.send_commit_msg);
 865             break;
 866         case BRW_MESSAGE_TARGET_URB:
 867             format (file, " %d", inst->bits3.urb.offset);
 868             space = 1;
 869             err |= control (file, "urb swizzle", urb_swizzle,
 870                             inst->bits3.urb.swizzle_control, &space);
 871             err |= control (file, "urb allocate", urb_allocate,
 872                             inst->bits3.urb.allocate, &space);
 873             err |= control (file, "urb used", urb_used,
 874                             inst->bits3.urb.used, &space);
 875             err |= control (file, "urb complete", urb_complete,
 876                             inst->bits3.urb.complete, &space);
 877             break;
 878         case BRW_MESSAGE_TARGET_THREAD_SPAWNER:
 879             break;
 880         default:
 881             format (file, "unsupported target %d", inst->bits3.generic.msg_target);
 882             break;
 883         }
 884         if (space)
 885             string (file, " ");
 886         format (file, "mlen %d",
 887                 inst->bits3.generic.msg_length);
 888         format (file, " rlen %d",
 889                 inst->bits3.generic.response_length);
 890     }
 891     pad (file, 64);
 892     if (inst->header.opcode != BRW_OPCODE_NOP) {
 893         string (file, "{");
 894         space = 1;
 895         err |= control(file, "access mode", access_mode, inst->header.access_mode, &space);
 896         err |= control (file, "mask control", mask_ctrl, inst->header.mask_control, &space);
 897         err |= control (file, "dependency control", dep_ctrl, inst->header.dependency_control, &space);
 898         err |= control (file, "compression control", compr_ctrl, inst->header.compression_control, &space);
 899         err |= control (file, "thread control", thread_ctrl, inst->header.thread_control, &space);
 900         if (inst->header.opcode == BRW_OPCODE_SEND)
 901             err |= control (file, "end of thread", end_of_thread,
 902                             inst->bits3.generic.end_of_thread, &space);
 903         if (space)
 904             string (file, " ");
 905         string (file, "}");
 906     }
 907     string (file, ";");
 908     newline (file);
 909     return err;
 910 }