/**
 * Author......: See docs/credits.txt
 * License.....: MIT
 */

#include "inc_vendor.cl"
#include "inc_hash_constants.h"
#include "inc_hash_functions.cl"
#include "inc_types.cl"
#include "inc_common.cl"
#include "inc_hash_md5.cl"

#define COMPARE_S "inc_comp_single.cl"
#define COMPARE_M "inc_comp_multi.cl"

#define md5crypt_magic 0x00243124u

void memcat16 (u32 block0[4], u32 block1[4], u32 block2[4], u32 block3[4], const u32 block_len, const u32 append[4])
{
  u32 tmp0;
  u32 tmp1;
  u32 tmp2;
  u32 tmp3;
  u32 tmp4;

  #if defined IS_AMD || defined IS_GENERIC

  const int offset_minus_4 = 4 - (block_len & 3);

  tmp0 = amd_bytealign (append[0],         0, offset_minus_4);
  tmp1 = amd_bytealign (append[1], append[0], offset_minus_4);
  tmp2 = amd_bytealign (append[2], append[1], offset_minus_4);
  tmp3 = amd_bytealign (append[3], append[2], offset_minus_4);
  tmp4 = amd_bytealign (        0, append[3], offset_minus_4);

  const u32 mod = block_len & 3;

  if (mod == 0)
  {
    tmp0 = tmp1;
    tmp1 = tmp2;
    tmp2 = tmp3;
    tmp3 = tmp4;
    tmp4 = 0;
  }

  #endif

  #ifdef IS_NV

  const int offset_minus_4 = 4 - (block_len & 3);

  const int selector = (0x76543210 >> (offset_minus_4 * 4)) & 0xffff;

  tmp0 = __byte_perm (        0, append[0], selector);
  tmp1 = __byte_perm (append[0], append[1], selector);
  tmp2 = __byte_perm (append[1], append[2], selector);
  tmp3 = __byte_perm (append[2], append[3], selector);
  tmp4 = __byte_perm (append[3],         0, selector);

  #endif

  const u32 div = block_len / 4;

  switch (div)
  {
    case  0:  block0[0] |= tmp0;
              block0[1]  = tmp1;
              block0[2]  = tmp2;
              block0[3]  = tmp3;
              block1[0]  = tmp4;
              break;
    case  1:  block0[1] |= tmp0;
              block0[2]  = tmp1;
              block0[3]  = tmp2;
              block1[0]  = tmp3;
              block1[1]  = tmp4;
              break;
    case  2:  block0[2] |= tmp0;
              block0[3]  = tmp1;
              block1[0]  = tmp2;
              block1[1]  = tmp3;
              block1[2]  = tmp4;
              break;
    case  3:  block0[3] |= tmp0;
              block1[0]  = tmp1;
              block1[1]  = tmp2;
              block1[2]  = tmp3;
              block1[3]  = tmp4;
              break;
    case  4:  block1[0] |= tmp0;
              block1[1]  = tmp1;
              block1[2]  = tmp2;
              block1[3]  = tmp3;
              block2[0]  = tmp4;
              break;
    case  5:  block1[1] |= tmp0;
              block1[2]  = tmp1;
              block1[3]  = tmp2;
              block2[0]  = tmp3;
              block2[1]  = tmp4;
              break;
    case  6:  block1[2] |= tmp0;
              block1[3]  = tmp1;
              block2[0]  = tmp2;
              block2[1]  = tmp3;
              block2[2]  = tmp4;
              break;
    case  7:  block1[3] |= tmp0;
              block2[0]  = tmp1;
              block2[1]  = tmp2;
              block2[2]  = tmp3;
              block2[3]  = tmp4;
              break;
    case  8:  block2[0] |= tmp0;
              block2[1]  = tmp1;
              block2[2]  = tmp2;
              block2[3]  = tmp3;
              block3[0]  = tmp4;
              break;
    case  9:  block2[1] |= tmp0;
              block2[2]  = tmp1;
              block2[3]  = tmp2;
              block3[0]  = tmp3;
              block3[1]  = tmp4;
              break;
  }
}

void memcat16_x80 (u32 block0[4], u32 block1[4], u32 block2[4], u32 block3[4], const u32 block_len, const u32 append[4])
{
  u32 tmp0;
  u32 tmp1;
  u32 tmp2;
  u32 tmp3;
  u32 tmp4;

  #if defined IS_AMD || defined IS_GENERIC

  const int offset_minus_4 = 4 - (block_len & 3);

  tmp0 = amd_bytealign (append[0],         0, offset_minus_4);
  tmp1 = amd_bytealign (append[1], append[0], offset_minus_4);
  tmp2 = amd_bytealign (append[2], append[1], offset_minus_4);
  tmp3 = amd_bytealign (append[3], append[2], offset_minus_4);
  tmp4 = amd_bytealign (     0x80, append[3], offset_minus_4);

  const u32 mod = block_len & 3;

  if (mod == 0)
  {
    tmp0 = tmp1;
    tmp1 = tmp2;
    tmp2 = tmp3;
    tmp3 = tmp4;
    tmp4 = 0x80;
  }

  #endif

  #ifdef IS_NV

  const int offset_minus_4 = 4 - (block_len & 3);

  const int selector = (0x76543210 >> (offset_minus_4 * 4)) & 0xffff;

  tmp0 = __byte_perm (        0, append[0], selector);
  tmp1 = __byte_perm (append[0], append[1], selector);
  tmp2 = __byte_perm (append[1], append[2], selector);
  tmp3 = __byte_perm (append[2], append[3], selector);
  tmp4 = __byte_perm (append[3],      0x80, selector);

  #endif

  const u32 div = block_len / 4;

  switch (div)
  {
    case  0:  block0[0] |= tmp0;
              block0[1]  = tmp1;
              block0[2]  = tmp2;
              block0[3]  = tmp3;
              block1[0]  = tmp4;
              break;
    case  1:  block0[1] |= tmp0;
              block0[2]  = tmp1;
              block0[3]  = tmp2;
              block1[0]  = tmp3;
              block1[1]  = tmp4;
              break;
    case  2:  block0[2] |= tmp0;
              block0[3]  = tmp1;
              block1[0]  = tmp2;
              block1[1]  = tmp3;
              block1[2]  = tmp4;
              break;
    case  3:  block0[3] |= tmp0;
              block1[0]  = tmp1;
              block1[1]  = tmp2;
              block1[2]  = tmp3;
              block1[3]  = tmp4;
              break;
    case  4:  block1[0] |= tmp0;
              block1[1]  = tmp1;
              block1[2]  = tmp2;
              block1[3]  = tmp3;
              block2[0]  = tmp4;
              break;
    case  5:  block1[1] |= tmp0;
              block1[2]  = tmp1;
              block1[3]  = tmp2;
              block2[0]  = tmp3;
              block2[1]  = tmp4;
              break;
    case  6:  block1[2] |= tmp0;
              block1[3]  = tmp1;
              block2[0]  = tmp2;
              block2[1]  = tmp3;
              block2[2]  = tmp4;
              break;
    case  7:  block1[3] |= tmp0;
              block2[0]  = tmp1;
              block2[1]  = tmp2;
              block2[2]  = tmp3;
              block2[3]  = tmp4;
              break;
    case  8:  block2[0] |= tmp0;
              block2[1]  = tmp1;
              block2[2]  = tmp2;
              block2[3]  = tmp3;
              block3[0]  = tmp4;
              break;
    case  9:  block2[1] |= tmp0;
              block2[2]  = tmp1;
              block2[3]  = tmp2;
              block3[0]  = tmp3;
              block3[1]  = tmp4;
              break;
  }
}

void memcat8 (u32 block0[4], u32 block1[4], u32 block2[4], u32 block3[4], const u32 block_len, const u32 append[2])
{
  u32 tmp0;
  u32 tmp1;
  u32 tmp2;

  #if defined IS_AMD || defined IS_GENERIC

  const int offset_minus_4 = 4 - (block_len & 3);

  tmp0 = amd_bytealign (append[0],         0, offset_minus_4);
  tmp1 = amd_bytealign (append[1], append[0], offset_minus_4);
  tmp2 = amd_bytealign (        0, append[1], offset_minus_4);

  const u32 mod = block_len & 3;

  if (mod == 0)
  {
    tmp0 = tmp1;
    tmp1 = tmp2;
    tmp2 = 0;
  }

  #endif

  #ifdef IS_NV

  const int offset_minus_4 = 4 - (block_len & 3);

  const int selector = (0x76543210 >> (offset_minus_4 * 4)) & 0xffff;

  tmp0 = __byte_perm (        0, append[0], selector);
  tmp1 = __byte_perm (append[0], append[1], selector);
  tmp2 = __byte_perm (append[1],         0, selector);

  #endif

  const u32 div = block_len / 4;

  switch (div)
  {
    case  0:  block0[0] |= tmp0;
              block0[1]  = tmp1;
              block0[2]  = tmp2;
              break;
    case  1:  block0[1] |= tmp0;
              block0[2]  = tmp1;
              block0[3]  = tmp2;
              break;
    case  2:  block0[2] |= tmp0;
              block0[3]  = tmp1;
              block1[0]  = tmp2;
              break;
    case  3:  block0[3] |= tmp0;
              block1[0]  = tmp1;
              block1[1]  = tmp2;
              break;
    case  4:  block1[0] |= tmp0;
              block1[1]  = tmp1;
              block1[2]  = tmp2;
              break;
    case  5:  block1[1] |= tmp0;
              block1[2]  = tmp1;
              block1[3]  = tmp2;
              break;
    case  6:  block1[2] |= tmp0;
              block1[3]  = tmp1;
              block2[0]  = tmp2;
              break;
    case  7:  block1[3] |= tmp0;
              block2[0]  = tmp1;
              block2[1]  = tmp2;
              break;
    case  8:  block2[0] |= tmp0;
              block2[1]  = tmp1;
              block2[2]  = tmp2;
              break;
    case  9:  block2[1] |= tmp0;
              block2[2]  = tmp1;
              block2[3]  = tmp2;
              break;
    case 10:  block2[2] |= tmp0;
              block2[3]  = tmp1;
              block3[0]  = tmp2;
              break;
    case 11:  block2[3] |= tmp0;
              block3[0]  = tmp1;
              block3[1]  = tmp2;
              break;
  }
}

void append_sign (u32 block0[4], u32 block1[4], const u32 block_len)
{
  switch (block_len)
  {
    case 0:
      block0[0] = md5crypt_magic;
      break;

    case 1:
      block0[0] = block0[0]            | md5crypt_magic <<  8u;
      block0[1] = md5crypt_magic >> 24u;
      break;

    case 2:
      block0[0] = block0[0]            | md5crypt_magic << 16u;
      block0[1] = md5crypt_magic >> 16u;
      break;

    case 3:
      block0[0] = block0[0]            | md5crypt_magic << 24u;
      block0[1] = md5crypt_magic >>  8u;
      break;

    case 4:
      block0[1] = md5crypt_magic;
      break;

    case 5:
      block0[1] = block0[1]            | md5crypt_magic <<  8u;
      block0[2] = md5crypt_magic >> 24u;
      break;

    case 6:
      block0[1] = block0[1]            | md5crypt_magic << 16u;
      block0[2] = md5crypt_magic >> 16u;
      break;

    case 7:
      block0[1] = block0[1]            | md5crypt_magic << 24u;
      block0[2] = md5crypt_magic >>  8u;
      break;

    case 8:
      block0[2] = md5crypt_magic;
      break;

    case 9:
      block0[2] = block0[2]            | md5crypt_magic <<  8u;
      block0[3] = md5crypt_magic >> 24u;
      break;

    case 10:
      block0[2] = block0[2]            | md5crypt_magic << 16u;
      block0[3] = md5crypt_magic >> 16u;
      break;

    case 11:
      block0[2] = block0[2]            | md5crypt_magic << 24u;
      block0[3] = md5crypt_magic >>  8u;
      break;

    case 12:
      block0[3] = md5crypt_magic;
      break;

    case 13:
      block0[3] = block0[3]            | md5crypt_magic <<  8u;
      block1[0] = md5crypt_magic >> 24u;
      break;

    case 14:
      block0[3] = block0[3]            | md5crypt_magic << 16u;
      block1[0] = md5crypt_magic >> 16u;
      break;

    case 15:
      block0[3] = block0[3]            | md5crypt_magic << 24u;
      block1[0] = md5crypt_magic >>  8u;
      break;
  }
}

void append_1st (u32 block0[4], u32 block1[4], u32 block2[4], u32 block3[4], const u32 block_len, const u32 append)
{
  switch (block_len)
  {
    case 0:
      block0[0] = append;
      break;

    case 1:
      block0[0] = block0[0] | append <<  8;
      break;

    case 2:
      block0[0] = block0[0] | append << 16;
      break;

    case 3:
      block0[0] = block0[0] | append << 24;
      break;

    case 4:
      block0[1] = append;
      break;

    case 5:
      block0[1] = block0[1] | append <<  8;
      break;

    case 6:
      block0[1] = block0[1] | append << 16;
      break;

    case 7:
      block0[1] = block0[1] | append << 24;
      break;

    case 8:
      block0[2] = append;
      break;

    case 9:
      block0[2] = block0[2] | append <<  8;
      break;

    case 10:
      block0[2] = block0[2] | append << 16;
      break;

    case 11:
      block0[2] = block0[2] | append << 24;
      break;

    case 12:
      block0[3] = append;
      break;

    case 13:
      block0[3] = block0[3] | append <<  8;
      break;

    case 14:
      block0[3] = block0[3] | append << 16;
      break;

    case 15:
      block0[3] = block0[3] | append << 24;
      break;

    case 16:
      block1[0] = append;
      break;

    case 17:
      block1[0] = block1[0] | append <<  8;
      break;

    case 18:
      block1[0] = block1[0] | append << 16;
      break;

    case 19:
      block1[0] = block1[0] | append << 24;
      break;

    case 20:
      block1[1] = append;
      break;

    case 21:
      block1[1] = block1[1] | append <<  8;
      break;

    case 22:
      block1[1] = block1[1] | append << 16;
      break;

    case 23:
      block1[1] = block1[1] | append << 24;
      break;

    case 24:
      block1[2] = append;
      break;

    case 25:
      block1[2] = block1[2] | append <<  8;
      break;

    case 26:
      block1[2] = block1[2] | append << 16;
      break;

    case 27:
      block1[2] = block1[2] | append << 24;
      break;

    case 28:
      block1[3] = append;
      break;

    case 29:
      block1[3] = block1[3] | append <<  8;
      break;

    case 30:
      block1[3] = block1[3] | append << 16;
      break;

    case 31:
      block1[3] = block1[3] | append << 24;
      break;

    case 32:
      block2[0] = append;
      break;

    case 33:
      block2[0] = block2[0] | append <<  8;
      break;

    case 34:
      block2[0] = block2[0] | append << 16;
      break;

    case 35:
      block2[0] = block2[0] | append << 24;
      break;

    case 36:
      block2[1] = append;
      break;

    case 37:
      block2[1] = block2[1] | append <<  8;
      break;

    case 38:
      block2[1] = block2[1] | append << 16;
      break;

    case 39:
      block2[1] = block2[1] | append << 24;
      break;

    case 40:
      block2[2] = append;
      break;

    case 41:
      block2[2] = block2[2] | append <<  8;
      break;

    case 42:
      block2[2] = block2[2] | append << 16;
      break;

    case 43:
      block2[2] = block2[2] | append << 24;
      break;

    case 44:
      block2[3] = append;
      break;

    case 45:
      block2[3] = block2[3] | append <<  8;
      break;

    case 46:
      block2[3] = block2[3] | append << 16;
      break;

    case 47:
      block2[3] = block2[3] | append << 24;
      break;

    case 48:
      block3[0] = append;
      break;

    case 49:
      block3[0] = block3[0] | append <<  8;
      break;

    case 50:
      block3[0] = block3[0] | append << 16;
      break;

    case 51:
      block3[0] = block3[0] | append << 24;
      break;

    case 52:
      block3[1] = append;
      break;

    case 53:
      block3[1] = block3[1] | append <<  8;
      break;

    case 54:
      block3[1] = block3[1] | append << 16;
      break;

    case 55:
      block3[1] = block3[1] | append << 24;
      break;

    case 56:
      block3[2] = append;
      break;
  }
}

__kernel void m00500_init (__global pw_t *pws, __global const kernel_rule_t *rules_buf, __global const comb_t *combs_buf, __global const bf_t *bfs_buf, __global md5crypt_tmp_t *tmps, __global void *hooks, __global const u32 *bitmaps_buf_s1_a, __global const u32 *bitmaps_buf_s1_b, __global const u32 *bitmaps_buf_s1_c, __global const u32 *bitmaps_buf_s1_d, __global const u32 *bitmaps_buf_s2_a, __global const u32 *bitmaps_buf_s2_b, __global const u32 *bitmaps_buf_s2_c, __global const u32 *bitmaps_buf_s2_d, __global plain_t *plains_buf, __global const digest_t *digests_buf, __global u32 *hashes_shown, __global const salt_t *salt_bufs, __global const void *esalt_bufs, __global u32 *d_return_buf, __global u32 *d_scryptV0_buf, __global u32 *d_scryptV1_buf, __global u32 *d_scryptV2_buf, __global u32 *d_scryptV3_buf, const u32 bitmap_mask, const u32 bitmap_shift1, const u32 bitmap_shift2, const u32 salt_pos, const u32 loop_pos, const u32 loop_cnt, const u32 il_cnt, const u32 digests_cnt, const u32 digests_offset, const u32 combs_mode, const u32 gid_max)
{
  /**
   * base
   */

  const u32 gid = get_global_id (0);

  if (gid >= gid_max) return;

  /**
   * init
   */

  const u32 pw_len = pws[gid].pw_len;

  const u32 pw_lenv = ceil ((float) pw_len / 4);

  u32 w[64] = { 0 };

  for (int idx = 0; idx < pw_lenv; idx++)
  {
    w[idx] = pws[gid].i[idx];

    barrier (CLK_GLOBAL_MEM_FENCE);
  }

  const u32 salt_len = salt_bufs[salt_pos].salt_len;

  const u32 salt_lenv = ceil ((float) salt_len / 4);

  u32 s[64] = { 0 };

  for (int idx = 0; idx < salt_lenv; idx++)
  {
    s[idx] = salt_bufs[salt_pos].salt_buf[idx];

    barrier (CLK_GLOBAL_MEM_FENCE);
  }

  /**
   * prepare
   */

  md5_ctx_t md5_ctx1;

  md5_init (&md5_ctx1);

  md5_update (&md5_ctx1, w, pw_len);

  md5_update (&md5_ctx1, s, salt_len);

  md5_update (&md5_ctx1, w, pw_len);

  md5_final (&md5_ctx1);

  u32 final[16] = { 0 };

  final[0] = md5_ctx1.h[0];
  final[1] = md5_ctx1.h[1];
  final[2] = md5_ctx1.h[2];
  final[3] = md5_ctx1.h[3];

  if (pw_len < 16)
  {
    truncate_block (final, pw_len);
  }

  md5_ctx_t md5_ctx;

  md5_init (&md5_ctx);

  md5_update (&md5_ctx, w, pw_len);

  u32 m[16] = { 0 };

  m[0] = md5crypt_magic;

  md5_update (&md5_ctx, m, 3);

  md5_update (&md5_ctx, s, salt_len);

	for (int pl = pw_len; pl > 0; pl -= 16)
  {
    md5_update (&md5_ctx, final, pl > 16 ? 16 : pl);
  }

  /* Then something really weird... */

  u32 z[16] = { 0 };

	for (int i = pw_len; i != 0; i >>= 1)
  {
		if (i & 1)
    {
      md5_update (&md5_ctx, z, 1);
    }
    else
    {
      md5_update (&md5_ctx, w, 1);
    }
  }

  md5_final (&md5_ctx);

  tmps[gid].digest_buf[0] = md5_ctx.h[0];
  tmps[gid].digest_buf[1] = md5_ctx.h[1];
  tmps[gid].digest_buf[2] = md5_ctx.h[2];
  tmps[gid].digest_buf[3] = md5_ctx.h[3];
}

__kernel void m00500_loop (__global pw_t *pws, __global const kernel_rule_t *rules_buf, __global const comb_t *combs_buf, __global const bf_t *bfs_buf, __global md5crypt_tmp_t *tmps, __global void *hooks, __global const u32 *bitmaps_buf_s1_a, __global const u32 *bitmaps_buf_s1_b, __global const u32 *bitmaps_buf_s1_c, __global const u32 *bitmaps_buf_s1_d, __global const u32 *bitmaps_buf_s2_a, __global const u32 *bitmaps_buf_s2_b, __global const u32 *bitmaps_buf_s2_c, __global const u32 *bitmaps_buf_s2_d, __global plain_t *plains_buf, __global const digest_t *digests_buf, __global u32 *hashes_shown, __global const salt_t *salt_bufs, __global const void *esalt_bufs, __global u32 *d_return_buf, __global u32 *d_scryptV0_buf, __global u32 *d_scryptV1_buf, __global u32 *d_scryptV2_buf, __global u32 *d_scryptV3_buf, const u32 bitmap_mask, const u32 bitmap_shift1, const u32 bitmap_shift2, const u32 salt_pos, const u32 loop_pos, const u32 loop_cnt, const u32 il_cnt, const u32 digests_cnt, const u32 digests_offset, const u32 combs_mode, const u32 gid_max)
{
  /**
   * base
   */

  const u32 gid = get_global_id (0);

  if (gid >= gid_max) return;

  /**
   * init
   */

  const u32 pw_len = pws[gid].pw_len;

  const u32 pw_lenv = ceil ((float) pw_len / 4);

  u32 w[64] = { 0 };

  for (int idx = 0; idx < pw_lenv; idx++)
  {
    w[idx] = pws[gid].i[idx];

    barrier (CLK_GLOBAL_MEM_FENCE);
  }

  const u32 salt_len = salt_bufs[salt_pos].salt_len;

  const u32 salt_lenv = ceil ((float) salt_len / 4);

  u32 s[64] = { 0 };

  for (int idx = 0; idx < salt_lenv; idx++)
  {
    s[idx] = salt_bufs[salt_pos].salt_buf[idx];

    barrier (CLK_GLOBAL_MEM_FENCE);
  }

  /**
   * digest
   */

  u32 digest[16] = { 0 };

  digest[0] = tmps[gid].digest_buf[0];
  digest[1] = tmps[gid].digest_buf[1];
  digest[2] = tmps[gid].digest_buf[2];
  digest[3] = tmps[gid].digest_buf[3];

  /**
   * loop
   */

  for (u32 i = 0, j = loop_pos; i < loop_cnt; i++, j++)
  {
    md5_ctx_t md5_ctx;

    md5_init (&md5_ctx);

		if (j & 1)
    {
			md5_update (&md5_ctx, w, pw_len);
    }
		else
    {
			md5_update (&md5_ctx, digest, 16);
    }

		if (j % 3)
    {
			md5_update (&md5_ctx, s, salt_len);
    }

		if (j % 7)
    {
			md5_update (&md5_ctx, w, pw_len);
    }

		if (j & 1)
    {
			md5_update (&md5_ctx, digest, 16);
    }
		else
    {
			md5_update (&md5_ctx, w, pw_len);
    }

    md5_final (&md5_ctx);

    digest[0] = md5_ctx.h[0];
    digest[1] = md5_ctx.h[1];
    digest[2] = md5_ctx.h[2];
    digest[3] = md5_ctx.h[3];
  }

  tmps[gid].digest_buf[0] = digest[0];
  tmps[gid].digest_buf[1] = digest[1];
  tmps[gid].digest_buf[2] = digest[2];
  tmps[gid].digest_buf[3] = digest[3];
}

__kernel void m00500_comp (__global pw_t *pws, __global const kernel_rule_t *rules_buf, __global const comb_t *combs_buf, __global const bf_t *bfs_buf, __global md5crypt_tmp_t *tmps, __global void *hooks, __global const u32 *bitmaps_buf_s1_a, __global const u32 *bitmaps_buf_s1_b, __global const u32 *bitmaps_buf_s1_c, __global const u32 *bitmaps_buf_s1_d, __global const u32 *bitmaps_buf_s2_a, __global const u32 *bitmaps_buf_s2_b, __global const u32 *bitmaps_buf_s2_c, __global const u32 *bitmaps_buf_s2_d, __global plain_t *plains_buf, __global const digest_t *digests_buf, __global u32 *hashes_shown, __global const salt_t *salt_bufs, __global const void *esalt_bufs, __global u32 *d_return_buf, __global u32 *d_scryptV0_buf, __global u32 *d_scryptV1_buf, __global u32 *d_scryptV2_buf, __global u32 *d_scryptV3_buf, const u32 bitmap_mask, const u32 bitmap_shift1, const u32 bitmap_shift2, const u32 salt_pos, const u32 loop_pos, const u32 loop_cnt, const u32 il_cnt, const u32 digests_cnt, const u32 digests_offset, const u32 combs_mode, const u32 gid_max)
{
  /**
   * modifier
   */

  const u32 gid = get_global_id (0);

  if (gid >= gid_max) return;

  const u32 lid = get_local_id (0);

  /**
   * digest
   */

  const u32 r0 = tmps[gid].digest_buf[DGST_R0];
  const u32 r1 = tmps[gid].digest_buf[DGST_R1];
  const u32 r2 = tmps[gid].digest_buf[DGST_R2];
  const u32 r3 = tmps[gid].digest_buf[DGST_R3];

  #define il_pos 0

  #include COMPARE_M
}