diff --git a/OpenCL/inc_hash_md4.cl b/OpenCL/inc_hash_md4.cl
index 972bfa5b8..3fc0220b7 100644
--- a/OpenCL/inc_hash_md4.cl
+++ b/OpenCL/inc_hash_md4.cl
@@ -362,11 +362,6 @@ void md4_final (md4_ctx_t *ctx)
   md4_transform (ctx->w0, ctx->w1, ctx->w2, ctx->w3, ctx->h);
 }
 
-void md4_optimize_max_length (md4_ctx_t *ctx, const int bits)
-{
-  ctx->len &= (1 << bits) - 1;
-}
-
 // while input buf can be a vector datatype, the length of the different elements can not
 
 typedef struct md4_ctx_vector
@@ -632,8 +627,3 @@ void md4_final_vector (md4_ctx_vector_t *ctx)
 
   md4_transform_vector (ctx->w0, ctx->w1, ctx->w2, ctx->w3, ctx->h);
 }
-
-void md4_optimize_max_length_vector (md4_ctx_vector_t *ctx, const int bits)
-{
-  ctx->len &= (1 << bits) - 1;
-}
diff --git a/OpenCL/inc_hash_md5.cl b/OpenCL/inc_hash_md5.cl
index 8a77df011..b4417ba1a 100644
--- a/OpenCL/inc_hash_md5.cl
+++ b/OpenCL/inc_hash_md5.cl
@@ -396,11 +396,6 @@ void md5_final (md5_ctx_t *ctx)
   md5_transform (ctx->w0, ctx->w1, ctx->w2, ctx->w3, ctx->h);
 }
 
-void md5_optimize_max_length (md5_ctx_t *ctx, const int bits)
-{
-  ctx->len &= (1 << bits) - 1;
-}
-
 // while input buf can be a vector datatype, the length of the different elements can not
 
 typedef struct md5_ctx_vector
@@ -700,8 +695,3 @@ void md5_final_vector (md5_ctx_vector_t *ctx)
 
   md5_transform_vector (ctx->w0, ctx->w1, ctx->w2, ctx->w3, ctx->h);
 }
-
-void md5_optimize_max_length_vector (md5_ctx_vector_t *ctx, const int bits)
-{
-  ctx->len &= (1 << bits) - 1;
-}
diff --git a/OpenCL/inc_hash_sha1.cl b/OpenCL/inc_hash_sha1.cl
index f129cf65f..d94721e9d 100644
--- a/OpenCL/inc_hash_sha1.cl
+++ b/OpenCL/inc_hash_sha1.cl
@@ -589,11 +589,6 @@ void sha1_final (sha1_ctx_t *ctx)
   sha1_transform (ctx->w0, ctx->w1, ctx->w2, ctx->w3, ctx->h);
 }
 
-void sha1_optimize_max_length (sha1_ctx_t *ctx, const int bits)
-{
-  ctx->len &= (1 << bits) - 1;
-}
-
 // sha1_hmac
 
 typedef struct sha1_hmac_ctx
@@ -1048,8 +1043,3 @@ void sha1_final_vector (sha1_ctx_vector_t *ctx)
 
   sha1_transform_vector (ctx->w0, ctx->w1, ctx->w2, ctx->w3, ctx->h);
 }
-
-void sha1_optimize_max_length_vector (sha1_ctx_vector_t *ctx, const int bits)
-{
-  ctx->len &= (1 << bits) - 1;
-}
diff --git a/OpenCL/m00500-256.cl b/OpenCL/m00500-256.cl
new file mode 100644
index 000000000..6f1c3c7a5
--- /dev/null
+++ b/OpenCL/m00500-256.cl
@@ -0,0 +1,888 @@
+/**
+ * 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
+}