src/panfrost/bifrost/bifrost.h

   1 /*
   2  * Copyright (C) 2019 Connor Abbott <cwabbott0@gmail.com>
   3  * Copyright (C) 2019 Lyude Paul <thatslyude@gmail.com>
   4  * Copyright (C) 2019 Ryan Houdek <Sonicadvance1@gmail.com>
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the next
  14  * paragraph) shall be included in all copies or substantial portions of the
  15  * Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23  * SOFTWARE.
  24  */
  25
  26 #ifndef __bifrost_h__
  27 #define __bifrost_h__
  28
  29 #include <stdint.h>
  30 #include <stdbool.h>
  31
  32 enum bifrost_clause_type {
  33         BIFROST_CLAUSE_NONE       = 0,
  34         BIFROST_CLAUSE_LOAD_VARY  = 1,
  35         BIFROST_CLAUSE_UBO        = 2,
  36         BIFROST_CLAUSE_TEX        = 3,
  37         BIFROST_CLAUSE_SSBO_LOAD  = 5,
  38         BIFROST_CLAUSE_SSBO_STORE = 6,
  39         BIFROST_CLAUSE_BLEND      = 9,
  40         BIFROST_CLAUSE_ATEST      = 13,
  41         BIFROST_CLAUSE_64BIT      = 15
  42 };
  43
  44 struct bifrost_header {
  45         unsigned unk0 : 7;
  46         // If true, convert any infinite result of any floating-point operation to
  47         // the biggest representable number.
  48         unsigned suppress_inf: 1;
  49         // Convert any NaN results to 0.
  50         unsigned suppress_nan : 1;
  51         unsigned unk1 : 2;
  52         // true if the execution mask of the next clause is the same as the mask of
  53         // the current clause.
  54         unsigned back_to_back : 1;
  55         unsigned no_end_of_shader: 1;
  56         unsigned unk2 : 2;
  57         // Set to true for fragment shaders, to implement this bit of spec text
  58         // from section 7.1.5 of the GLSL ES spec:
  59         //
  60         // "Stores to image and buffer variables performed by helper invocations
  61         // have no effect on the underlying image or buffer memory."
  62         //
  63         // Helper invocations are threads (invocations) corresponding to pixels in
  64         // a quad that aren't actually part of the triangle, but are included to
  65         // make derivatives work correctly. They're usually turned on, but they
  66         // need to be masked off for GLSL-level stores. This bit seems to be the
  67         // only bit that's actually different between fragment shaders and other
  68         // shaders, so this is probably what it's doing.
  69         unsigned elide_writes : 1;
  70         // If backToBack is off:
  71         // - true for conditional branches and fallthrough
  72         // - false for unconditional branches
  73         // The blob seems to always set it to true if back-to-back is on.
  74         unsigned branch_cond : 1;
  75         // This bit is set when the next clause writes to the data register of some
  76         // previous clause.
  77         unsigned datareg_writebarrier: 1;
  78         unsigned datareg : 6;
  79         unsigned scoreboard_deps: 8;
  80         unsigned scoreboard_index: 3;
  81         enum bifrost_clause_type clause_type: 4;
  82         unsigned unk3 : 1; // part of clauseType?
  83         enum bifrost_clause_type next_clause_type: 4;
  84         unsigned unk4 : 1; // part of nextClauseType?
  85 } __attribute__((packed));
  86
  87 enum bifrost_packed_src {
  88         BIFROST_SRC_PORT0    = 0,
  89         BIFROST_SRC_PORT1    = 1,
  90         BIFROST_SRC_PORT3    = 2,
  91         BIFROST_SRC_STAGE    = 3,
  92         BIFROST_SRC_CONST_LO = 4,
  93         BIFROST_SRC_CONST_HI = 5,
  94         BIFROST_SRC_PASS_FMA = 6,
  95         BIFROST_SRC_PASS_ADD = 7,
  96 };
  97
  98 #define BIFROST_FMA_EXT (0xe0000)
  99 #define BIFROST_FMA_OP_MOV BIFROST_FMA_EXT | (0x32d)
 100
 101 struct bifrost_fma_inst {
 102         unsigned src0 : 3;
 103         unsigned op   : 20;
 104 } __attribute__((packed));
 105
 106 struct bifrost_fma_2src {
 107         unsigned src0 : 3;
 108         unsigned src1 : 3;
 109         unsigned op   : 17;
 110 } __attribute__((packed));
 111
 112 #define BIFROST_ADD_OP_BLEND (0x1952c)
 113 #define BIFROST_ADD_OP_FRCP_FAST_F32 (0x0cc00)
 114 #define BIFROST_ADD_OP_FRCP_FAST_F16_X (0x0ce10)
 115 #define BIFROST_ADD_OP_FRCP_FAST_F16_Y (0x0ce30)
 116 #define BIFROST_ADD_OP_FRSQ_FAST_F32 (0x0cc20)
 117 #define BIFROST_ADD_OP_FRSQ_FAST_F16_X (0x0ce50)
 118 #define BIFROST_ADD_OP_FRSQ_FAST_F16_Y (0x0ce70)
 119
 120 struct bifrost_add_inst {
 121         unsigned src0 : 3;
 122         unsigned op   : 17;
 123 } __attribute__((packed));
 124
 125 #define BIFROST_ADD_OP_LD_UBO_1 (0x0c1a0 >> 3)
 126 #define BIFROST_ADD_OP_LD_UBO_2 (0x0c1e0 >> 3)
 127 #define BIFROST_ADD_OP_LD_UBO_3 (0x0caa0 >> 3)
 128 #define BIFROST_ADD_OP_LD_UBO_4 (0x0c220 >> 3)
 129
 130 struct bifrost_add_2src {
 131         unsigned src0 : 3;
 132         unsigned src1 : 3;
 133         unsigned op   : 14;
 134 } __attribute__((packed));
 135
 136 #define BIFROST_ADD_OP_FMAX32 (0x00)
 137 #define BIFROST_ADD_OP_FMIN32 (0x01)
 138 #define BIFROST_ADD_OP_FADD32 (0x02)
 139
 140 struct bifrost_add_faddmin {
 141         unsigned src0 : 3;
 142         unsigned src1 : 3;
 143         unsigned src1_abs : 1;
 144         unsigned src0_neg : 1;
 145         unsigned src1_neg : 1;
 146         unsigned select : 2;
 147         unsigned outmod : 2;
 148         unsigned mode : 2;
 149         unsigned src0_abs : 1;
 150         unsigned op   : 4;
 151 } __attribute__((packed));
 152
 153 #define BIFROST_ADD_OP_ST_VAR (0x19300 >> 8)
 154
 155 struct bifrost_st_vary {
 156         unsigned src0 : 3;
 157         unsigned src1 : 3;
 158         unsigned src2 : 3;
 159         unsigned channels : 2;
 160         unsigned op   : 9;
 161 } __attribute__((packed));
 162
 163 #define BIFROST_ADD_OP_ATEST (0xc8f)
 164
 165 struct bifrost_add_atest {
 166         /* gl_SampleMask (R60) */
 167         unsigned src0 : 3;
 168
 169         /* Alpha value */
 170         unsigned src1 : 3;
 171
 172         /* If half, X/Y select. If !half, always set */
 173         unsigned component : 1;
 174         unsigned half : 1;
 175
 176         unsigned op   : 12;
 177 } __attribute__((packed));
 178
 179 enum bifrost_outmod {
 180         BIFROST_NONE = 0x0,
 181         BIFROST_POS = 0x1,
 182         BIFROST_SAT_SIGNED = 0x2,
 183         BIFROST_SAT = 0x3,
 184 };
 185
 186 enum bifrost_roundmode {
 187         BIFROST_RTE = 0x0, /* round to even */
 188         BIFROST_RTP = 0x1, /* round to positive */
 189         BIFROST_RTN = 0x2, /* round to negative */
 190         BIFROST_RTZ = 0x3 /* round to zero */
 191 };
 192
 193 /* NONE: Same as fmax() and fmin() -- return the other
 194  * number if any number is NaN.  Also always return +0 if
 195  * one argument is +0 and the other is -0.
 196  *
 197  * NAN_WINS: Instead of never returning a NaN, always return
 198  * one. The "greater"/"lesser" NaN is always returned, first
 199  * by checking the sign and then the mantissa bits.
 200  *
 201  * SRC1_WINS: For max, implement src0 > src1 ? src0 : src1.
 202  * For min, implement src0 < src1 ? src0 : src1.  This
 203  * includes handling NaN's and signedness of 0 differently
 204  * from above, since +0 and -0 compare equal and comparisons
 205  * always return false for NaN's. As a result, this mode is
 206  * *not* commutative.
 207  *
 208  * SRC0_WINS: For max, implement src0 < src1 ? src1 : src0
 209  * For min, implement src0 > src1 ? src1 : src0
 210  */
 211
 212
 213 enum bifrost_minmax_mode {
 214         BIFROST_MINMAX_NONE = 0x0,
 215         BIFROST_NAN_WINS    = 0x1,
 216         BIFROST_SRC1_WINS   = 0x2,
 217         BIFROST_SRC0_WINS   = 0x3,
 218 };
 219
 220 #define BIFROST_FMA_OP_FADD32 (0x58 >> 2)
 221 #define BIFROST_FMA_OP_FMAX32 (0x40 >> 2)
 222 #define BIFROST_FMA_OP_FMIN32 (0x44 >> 2)
 223
 224 struct bifrost_fma_add {
 225         unsigned src0 : 3;
 226         unsigned src1 : 3;
 227         unsigned src1_abs : 1;
 228         unsigned src0_neg : 1;
 229         unsigned src1_neg : 1;
 230         unsigned unk : 3;
 231         unsigned src0_abs : 1;
 232         enum bifrost_roundmode roundmode : 2;
 233         enum bifrost_outmod outmod : 2;
 234         unsigned op : 6;
 235 } __attribute__((packed));
 236
 237 #define BIFROST_FMA_OP_FMAX16 (0xC0 >> 2)
 238 #define BIFROST_FMA_OP_FMIN16 (0xCC >> 2)
 239 #define BIFROST_FMA_OP_FADD16 (0xD8 >> 2)
 240
 241 struct bifrost_fma_add_minmax16 {
 242         unsigned src0 : 3;
 243         unsigned src1 : 3;
 244         /* abs2 inferred as (src1 < src0) */
 245         unsigned abs1 : 1;
 246         unsigned src0_neg : 1;
 247         unsigned src1_neg : 1;
 248         unsigned src0_swizzle : 2;
 249         unsigned src1_swizzle : 2;
 250         unsigned mode : 2;
 251         enum bifrost_outmod outmod : 2;
 252         /* roundmode for add, min/max mode for min/max */
 253         unsigned op : 6;
 254 } __attribute__((packed));
 255
 256 #define BIFROST_FMA_OP_FMA (0x00)
 257
 258 struct bifrost_fma_fma {
 259         unsigned src0 : 3;
 260         unsigned src1 : 3;
 261         unsigned src2 : 3;
 262         unsigned src_expand : 3;
 263         unsigned src0_abs : 1;
 264         enum bifrost_roundmode roundmode : 2;
 265         enum bifrost_outmod outmod : 2;
 266         unsigned src0_neg : 1; /* 14 */
 267         unsigned src2_neg : 1;
 268         unsigned src1_abs : 1;
 269         unsigned src2_abs : 1; /* 17 */
 270         unsigned op : 2;
 271 } __attribute__((packed));
 272
 273 #define BIFROST_FMA_OP_FMA16 (0x2)
 274
 275 struct bifrost_fma_fma16 {
 276         unsigned src0 : 3;
 277         unsigned src1 : 3;
 278         unsigned src2 : 3;
 279         unsigned swizzle_0 : 2;
 280         unsigned swizzle_1 : 2;
 281         enum bifrost_roundmode roundmode : 2;
 282         enum bifrost_outmod outmod : 2;
 283         unsigned src0_neg : 1;
 284         unsigned src2_neg : 1;
 285         unsigned swizzle_2 : 2;
 286         unsigned op : 2;
 287 } __attribute__((packed));
 288
 289 enum bifrost_csel_cond {
 290         BIFROST_FEQ_F = 0x0,
 291         BIFROST_FGT_F = 0x1,
 292         BIFROST_FGE_F = 0x2,
 293         BIFROST_IEQ_F = 0x3,
 294         BIFROST_IGT_I = 0x4,
 295         BIFROST_IGE_I = 0x5,
 296         BIFROST_UGT_I = 0x6,
 297         BIFROST_UGE_I = 0x7
 298 };
 299
 300 #define BIFROST_FMA_OP_CSEL4     (0x5c)
 301 #define BIFROST_FMA_OP_CSEL4_V16 (0xdc)
 302
 303 struct bifrost_csel4 {
 304         unsigned src0 : 3;
 305         unsigned src1 : 3;
 306         unsigned src2 : 3;
 307         unsigned src3 : 3;
 308         enum bifrost_csel_cond cond : 3;
 309         unsigned op   : 8;
 310 } __attribute__((packed));
 311
 312 struct bifrost_shift_fma {
 313         unsigned src0 : 3;
 314         unsigned src1 : 3;
 315         unsigned src2 : 3;
 316         unsigned half : 3; /* 000 for i32, 100 for i8, 111 for v2i16 */
 317         unsigned unk  : 1; /* always set? */
 318         unsigned invert_1 : 1; /* Inverts sources to combining op */
 319         /* For XOR, switches RSHIFT to LSHIFT since only one invert needed */
 320         unsigned invert_2 : 1;
 321         unsigned op : 8;
 322 } __attribute__((packed));
 323
 324 struct bifrost_shift_add {
 325         unsigned src0 : 3;
 326         unsigned src1 : 3;
 327         unsigned src2 : 3;
 328         unsigned zero : 2;
 329
 330         unsigned invert_1 : 1;
 331         unsigned invert_2 : 1;
 332
 333         unsigned op : 7;
 334 } __attribute__((packed));
 335
 336 /* Two sources for vectorization */
 337 #define BIFROST_FMA_FLOAT32_TO_16 (0xdd000 >> 3)
 338
 339 enum bifrost_convert_mode {
 340         BIFROST_CONV_UNK0 = 0,
 341         BIFROST_CONV_F32_TO_I32 = 1,
 342         BIFROST_CONV_F16_TO_I16 = 2,
 343         BIFROST_CONV_I32_TO_F32 = 3,
 344         BIFROST_CONV_I16_TO_X32 = 4,
 345         BIFROST_CONV_F16_TO_F32 = 5,
 346         BIFROST_CONV_I16_TO_F16 = 6,
 347         BIFROST_CONV_UNK7 = 7
 348 };
 349
 350 /* i16 to x32 */
 351 #define BIFROST_CONVERT_4(is_unsigned, component, to_float) \
 352         ((is_unsigned & 1) | ((component & 1) << 1) | ((to_float & 1) << 2) | \
 353          ((0x3) << 3) | ((4) << 5) | 0x100)
 354
 355 /* f16 to f32 */
 356 #define BIFROST_CONVERT_5(component) \
 357         ((component & 1) | ((1) << 1) | ((5) << 5) | 0x100)
 358
 359 /* Other conversions */
 360 #define BIFROST_CONVERT(is_unsigned, roundmode, swizzle, mode) \
 361         ((is_unsigned & 1) | ((roundmode & 3) << 1) | ((swizzle & 3) << 3) | ((mode & 7) << 5))
 362
 363 #define BIFROST_FMA_CONVERT (0xe0000)
 364
 365 enum bifrost_ldst_type {
 366         BIFROST_LDST_F16 = 0,
 367         BIFROST_LDST_F32 = 1,
 368         BIFROST_LDST_I32 = 2,
 369         BIFROST_LDST_U32 = 3
 370 };
 371
 372 #define BIFROST_ADD_OP_LD_VAR_ADDR (0x18000 >> 10)
 373
 374 struct bifrost_ld_var_addr {
 375         unsigned src0 : 3;
 376         unsigned src1 : 3;
 377         unsigned location : 5;
 378         enum bifrost_ldst_type type : 2;
 379         unsigned op : 7;
 380 } __attribute__((packed));
 381
 382 #define BIFROST_ADD_OP_LD_ATTR (0x08000 >> 12)
 383
 384 struct bifrost_ld_attr {
 385         unsigned src0 : 3;
 386         unsigned src1 : 3;
 387         unsigned location : 5;
 388         unsigned channels : 2; /* MALI_POSITIVE */
 389         enum bifrost_ldst_type type : 2;
 390         unsigned op : 5;
 391 } __attribute__((packed));
 392
 393 enum bifrost_interp_mode {
 394         BIFROST_INTERP_PER_FRAG = 0x0,
 395         BIFROST_INTERP_CENTROID = 0x1,
 396         BIFROST_INTERP_DEFAULT  = 0x2,
 397         BIFROST_INTERP_EXPLICIT = 0x3
 398 };
 399
 400 #define BIFROST_ADD_OP_LD_VAR_16 (0x1a << 1)
 401 #define BIFROST_ADD_OP_LD_VAR_32 (0x0a << 1)
 402
 403 struct bifrost_ld_var {
 404         unsigned src0 : 3;
 405
 406         /* If top two bits set, indirect with src in bottom three */
 407         unsigned addr : 5;
 408
 409         unsigned channels : 2; /* MALI_POSITIVE */
 410         enum bifrost_interp_mode interp_mode : 2;
 411         unsigned reuse : 1;
 412         unsigned flat : 1;
 413         unsigned op : 6;
 414 } __attribute__((packed));
 415
 416 struct bifrost_tex_ctrl {
 417         unsigned sampler_index : 4; // also used to signal indirects
 418         unsigned tex_index : 7;
 419         bool no_merge_index : 1; // whether to merge (direct) sampler & texture indices
 420         bool filter : 1; // use the usual filtering pipeline (0 for texelFetch & textureGather)
 421         unsigned unk0 : 2;
 422         bool texel_offset : 1; // *Offset()
 423         bool is_shadow : 1;
 424         bool is_array : 1;
 425         unsigned tex_type : 2; // 2D, 3D, Cube, Buffer
 426         bool compute_lod : 1; // 0 for *Lod()
 427         bool not_supply_lod : 1; // 0 for *Lod() or when a bias is applied
 428         bool calc_gradients : 1; // 0 for *Grad()
 429         unsigned unk1 : 1;
 430         unsigned result_type : 4; // integer, unsigned, float TODO: why is this 4 bits?
 431         unsigned unk2 : 4;
 432 } __attribute__((packed));
 433
 434 struct bifrost_dual_tex_ctrl {
 435         unsigned sampler_index0 : 2;
 436         unsigned unk0 : 2;
 437         unsigned tex_index0 : 2;
 438         unsigned sampler_index1 : 2;
 439         unsigned tex_index1 : 2;
 440         unsigned unk1 : 22;
 441 } __attribute__((packed));
 442
 443 enum branch_bit_size {
 444         BR_SIZE_32 = 0,
 445         BR_SIZE_16XX = 1,
 446         BR_SIZE_16YY = 2,
 447         // For the above combinations of bitsize and location, an extra bit is
 448         // encoded via comparing the sources. The only possible source of ambiguity
 449         // would be if the sources were the same, but then the branch condition
 450         // would be always true or always false anyways, so we can ignore it. But
 451         // this no longer works when comparing the y component to the x component,
 452         // since it's valid to compare the y component of a source against its own
 453         // x component. Instead, the extra bit is encoded via an extra bitsize.
 454         BR_SIZE_16YX0 = 3,
 455         BR_SIZE_16YX1 = 4,
 456         BR_SIZE_32_AND_16X = 5,
 457         BR_SIZE_32_AND_16Y = 6,
 458         // Used for comparisons with zero and always-true, see below. I think this
 459         // only works for integer comparisons.
 460         BR_SIZE_ZERO = 7,
 461 };
 462
 463 enum bifrost_reg_write_unit {
 464         REG_WRITE_NONE = 0, // don't write
 465         REG_WRITE_TWO, // write using reg2
 466         REG_WRITE_THREE, // write using reg3
 467 };
 468
 469 struct bifrost_regs {
 470         unsigned uniform_const : 8;
 471         unsigned reg2 : 6;
 472         unsigned reg3 : 6;
 473         unsigned reg0 : 5;
 474         unsigned reg1 : 6;
 475         unsigned ctrl : 4;
 476 } __attribute__((packed));
 477
 478 enum bifrost_branch_cond {
 479         BR_COND_LT = 0,
 480         BR_COND_LE = 1,
 481         BR_COND_GE = 2,
 482         BR_COND_GT = 3,
 483         // Equal vs. not-equal determined by src0/src1 comparison
 484         BR_COND_EQ = 4,
 485         // floating-point comparisons
 486         // Becomes UNE when you flip the arguments
 487         BR_COND_OEQ = 5,
 488         // TODO what happens when you flip the arguments?
 489         BR_COND_OGT = 6,
 490         BR_COND_OLT = 7,
 491 };
 492
 493 enum bifrost_branch_code {
 494         BR_ALWAYS = 63,
 495 };
 496
 497 struct bifrost_branch {
 498         unsigned src0 : 3;
 499
 500         /* For BR_SIZE_ZERO, upper two bits become ctrl */
 501         unsigned src1 : 3;
 502
 503         /* Offset source -- always uniform/const but
 504          * theoretically could support indirect jumps? */
 505         unsigned src2 : 3;
 506
 507         enum bifrost_branch_cond cond : 3;
 508         enum branch_bit_size size : 3;
 509
 510         unsigned op : 5;
 511 };
 512
 513 /* Clause packing */
 514
 515 #define BIFROST_FMA_NOP (0x701960 | BIFROST_SRC_STAGE)
 516 #define BIFROST_ADD_NOP (0x3D960 | BIFROST_SRC_STAGE)
 517
 518 struct bifrost_fmt1 {
 519         unsigned ins_0 : 3;
 520         unsigned tag : 5;
 521         uint64_t ins_1 : 64;
 522         unsigned ins_2 : 11;
 523         uint64_t header : 45;
 524 } __attribute__((packed));
 525
 526 #define BIFROST_FMT1_INSTRUCTIONS    0b00101
 527 #define BIFROST_FMT1_FINAL           0b01001
 528 #define BIFROST_FMT1_CONSTANTS       0b00001
 529
 530 #define BIFROST_FMTC_CONSTANTS       0b0011
 531 #define BIFROST_FMTC_FINAL           0b0111
 532
 533 struct bifrost_fmt_constant {
 534         unsigned pos : 4;
 535         unsigned tag : 4;
 536         uint64_t imm_1 : 60;
 537         uint64_t imm_2 : 60;
 538 } __attribute__((packed));
 539
 540 enum bifrost_reg_control {
 541         BIFROST_WRITE_FMA_P2         = 1,
 542         BIFROST_WRITE_FMA_P2_READ_P3 = 2,
 543         BIFROST_FIRST_WRITE_FMA_P2_READ_P3 = 3,
 544         BIFROST_READ_P3              = 4,
 545         BIFROST_WRITE_ADD_P2         = 5,
 546         BIFROST_WRITE_ADD_P2_READ_P3 = 6,
 547         BIFROST_WRITE_ADD_P2_FMA_P3  = 7,
 548
 549         BIFROST_FIRST_NONE           = 8,
 550         BIFROST_FIRST_WRITE_FMA_P2   = 9,
 551         /* INSTR_INVALID_ENC */
 552         BIFROST_REG_NONE             = 11,
 553         BIFROST_FIRST_READ_P3        = 12,
 554         BIFROST_FIRST_WRITE_ADD_P2   = 13,
 555         BIFROST_FIRST_WRITE_ADD_P2_READ_P3 = 14,
 556         BIFROST_FIRST_WRITE_ADD_P2_FMA_P3  = 15
 557 };
 558
 559 #endif