diff --git a/OpenCL/inc_rp_common.cl b/OpenCL/inc_rp_common.cl
new file mode 100644
index 000000000..cf1fd4fc9
--- /dev/null
+++ b/OpenCL/inc_rp_common.cl
@@ -0,0 +1,76 @@
+/**
+ * Author......: See docs/credits.txt
+ * License.....: MIT
+ */
+
+#include "inc_vendor.h"
+#include "inc_types.h"
+#include "inc_platform.h"
+#include "inc_common.h"
+#include "inc_rp_common.h"
+
+CONSTANT_VK u8 s_lookup[128] =
+{
+  // 0-31: control characters (0)
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  // 32: whitespace (1)
+  1,
+  // 33-47: punctuation (1)
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  // 48-57: digits (0)
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  // 58-64: punctuation (1)
+  1, 1, 1, 1, 1, 1, 1,
+  // 65-90: uppercase letters (0)
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  // 91-96: punctuation (1)
+  1, 1, 1, 1, 1, 1,
+  // 97-122: lowercase letters (0)
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  // 123-126: punctuation (1)
+  1, 1, 1, 1,
+  // 127: DEL (0)
+  0
+};
+
+DECLSPEC bool is_l (u8 c)
+{
+  return (c >= 'a' && c <= 'z');
+}
+
+DECLSPEC bool is_u (u8 c)
+{
+  return (c >= 'A' && c <= 'Z');
+}
+
+DECLSPEC bool is_d (u8 c)
+{
+  return (c >= '0' && c <= '9');
+}
+
+DECLSPEC bool is_lh (u8 c)
+{
+  return (is_d (c) || (c >= 'a' && c <= 'f'));
+}
+
+DECLSPEC bool is_uh (u8 c)
+{
+  return (is_d (c) || (c >= 'A' && c <= 'F'));
+}
+
+DECLSPEC bool is_s (u8 c)
+{
+  return s_lookup[c] == 1;
+}
+
+DECLSPEC u32 generate_cmask (const u32 value)
+{
+  const u32 rmask =  ((value & 0x40404040u) >> 1u)
+                  & ~((value & 0x80808080u) >> 2u);
+
+  const u32 hmask = (value & 0x1f1f1f1fu) + 0x05050505u;
+  const u32 lmask = (value & 0x1f1f1f1fu) + 0x1f1f1f1fu;
+
+  return rmask & ~hmask & lmask;
+}
diff --git a/OpenCL/inc_rp_common.h b/OpenCL/inc_rp_common.h
new file mode 100644
index 000000000..a799293ef
--- /dev/null
+++ b/OpenCL/inc_rp_common.h
@@ -0,0 +1,100 @@
+/**
+ * Author......: See docs/credits.txt
+ * License.....: MIT
+ */
+
+#ifndef INC_RP_COMMON_H
+#define INC_RP_COMMON_H
+
+#ifndef DECLSPEC
+#define DECLSPEC
+#endif
+
+#ifndef MAYBE_UNUSED
+#define MAYBE_UNUSED
+#endif
+
+#ifdef IS_APPLE_SILICON
+#define HC_INLINE_RP __attribute__ ((noinline))
+#else
+#define HC_INLINE_RP
+#endif
+
+#define RULE_OP_MANGLE_NOOP              ':'
+#define RULE_OP_MANGLE_LREST             'l'
+#define RULE_OP_MANGLE_UREST             'u'
+#define RULE_OP_MANGLE_LREST_UFIRST      'c'
+#define RULE_OP_MANGLE_UREST_LFIRST      'C'
+#define RULE_OP_MANGLE_TREST             't'
+#define RULE_OP_MANGLE_TOGGLE_AT         'T'
+#define RULE_OP_MANGLE_TOGGLE_AT_SEP     '3'
+#define RULE_OP_MANGLE_REVERSE           'r'
+#define RULE_OP_MANGLE_DUPEWORD          'd'
+#define RULE_OP_MANGLE_DUPEWORD_TIMES    'p'
+#define RULE_OP_MANGLE_REFLECT           'f'
+#define RULE_OP_MANGLE_ROTATE_LEFT       '{'
+#define RULE_OP_MANGLE_ROTATE_RIGHT      '}'
+#define RULE_OP_MANGLE_APPEND            '$'
+#define RULE_OP_MANGLE_PREPEND           '^'
+#define RULE_OP_MANGLE_DELETE_FIRST      '['
+#define RULE_OP_MANGLE_DELETE_LAST       ']'
+#define RULE_OP_MANGLE_DELETE_AT         'D'
+#define RULE_OP_MANGLE_EXTRACT           'x'
+#define RULE_OP_MANGLE_OMIT              'O'
+#define RULE_OP_MANGLE_INSERT            'i'
+#define RULE_OP_MANGLE_OVERSTRIKE        'o'
+#define RULE_OP_MANGLE_TRUNCATE_AT       '\''
+#define RULE_OP_MANGLE_REPLACE           's'
+#define RULE_OP_MANGLE_PURGECHAR         '@'
+#define RULE_OP_MANGLE_TOGGLECASE_REC    'a'
+#define RULE_OP_MANGLE_DUPECHAR_FIRST    'z'
+#define RULE_OP_MANGLE_DUPECHAR_LAST     'Z'
+#define RULE_OP_MANGLE_DUPECHAR_ALL      'q'
+#define RULE_OP_MANGLE_TITLE_SEP         'e'
+
+#define RULE_OP_REJECT_LESS              '<'
+#define RULE_OP_REJECT_GREATER           '>'
+#define RULE_OP_REJECT_CONTAIN           '!'
+#define RULE_OP_REJECT_NOT_CONTAIN       '/'
+#define RULE_OP_REJECT_EQUAL_FIRST       '('
+#define RULE_OP_REJECT_EQUAL_LAST        ')'
+#define RULE_OP_REJECT_EQUAL_AT          '='
+#define RULE_OP_REJECT_CONTAINS          '%'
+
+/* hashcat only */
+#define RULE_OP_MANGLE_SWITCH_FIRST      'k'
+#define RULE_OP_MANGLE_SWITCH_LAST       'K'
+#define RULE_OP_MANGLE_SWITCH_AT         '*'
+#define RULE_OP_MANGLE_CHR_SHIFTL        'L'
+#define RULE_OP_MANGLE_CHR_SHIFTR        'R'
+#define RULE_OP_MANGLE_CHR_INCR          '+'
+#define RULE_OP_MANGLE_CHR_DECR          '-'
+#define RULE_OP_MANGLE_REPLACE_NP1       '.'
+#define RULE_OP_MANGLE_REPLACE_NM1       ','
+#define RULE_OP_MANGLE_DUPEBLOCK_FIRST   'y'
+#define RULE_OP_MANGLE_DUPEBLOCK_LAST    'Y'
+#define RULE_OP_MANGLE_TITLE             'E'
+
+/* using character classes */
+#define RULE_OP_MANGLE_REPLACE_CLASS     0x01
+#define RULE_OP_MANGLE_PURGECHAR_CLASS   0x02
+#define RULE_OP_MANGLE_TITLE_SEP_CLASS   0x03
+#define RULE_OP_REJECT_CONTAIN_CLASS     0x04
+#define RULE_OP_REJECT_NOT_CONTAIN_CLASS 0x05
+#define RULE_OP_REJECT_EQUAL_FIRST_CLASS 0x06
+#define RULE_OP_REJECT_EQUAL_LAST_CLASS  0x07
+#define RULE_OP_REJECT_EQUAL_AT_CLASS    0x08
+#define RULE_OP_REJECT_CONTAINS_CLASS    0x09
+
+#define RP_PASSWORD_SIZE 256
+
+DECLSPEC bool is_l (u8 c);
+DECLSPEC bool is_u (u8 c);
+DECLSPEC bool is_d (u8 c);
+DECLSPEC bool is_lh (u8 c);
+DECLSPEC bool is_uh (u8 c);
+DECLSPEC bool is_s (u8 c);
+
+DECLSPEC u32  generate_cmask (const u32 value);
+
+#endif // INC_RP_COMMON_H
diff --git a/src/emu_inc_rp_common.c b/src/emu_inc_rp_common.c
new file mode 100644
index 000000000..989209abb
--- /dev/null
+++ b/src/emu_inc_rp_common.c
@@ -0,0 +1,11 @@
+/**
+ * Author......: See docs/credits.txt
+ * License.....: MIT
+ */
+
+#include "common.h"
+#include "types.h"
+#include "emu_general.h"
+
+#include "inc_rp_common.cl"
+