19 files changed, 49 insertions, 49 deletions

diff --git a/COPYRIGHT b/COPYRIGHT
index 44144197..e2f2cef8 100644
--- a/COPYRIGHT
+++ b/COPYRIGHT
@@ -1,5 +1,5 @@
 ===============================================================================
-LuaJIT -- a Just-In-Time Compiler for Lua. http://luajit.org/
+LuaJIT -- a Just-In-Time Compiler for Lua. https://luajit.org/
 
 Copyright (C) 2005-2020 Mike Pall. All rights reserved.
 
@@ -21,7 +21,7 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 
-[ MIT license: http://www.opensource.org/licenses/mit-license.php ]
+[ MIT license: https://www.opensource.org/licenses/mit-license.php ]
 
 ===============================================================================
 [ LuaJIT includes code from Lua 5.1/5.2, which has this license statement: ]
@@ -51,6 +51,6 @@ THE SOFTWARE.
 
 This is a version (aka dlmalloc) of malloc/free/realloc written by
 Doug Lea and released to the public domain, as explained at
-http://creativecommons.org/licenses/publicdomain
+https://creativecommons.org/licenses/publicdomain
 
 ===============================================================================
diff --git a/README b/README
index 5c74038f..5bf36b6d 100644
--- a/README
+++ b/README
@@ -3,7 +3,7 @@ README for LuaJIT 2.1.0-beta3
 
 LuaJIT is a Just-In-Time (JIT) compiler for the Lua programming language.
 
-Project Homepage: http://luajit.org/
+Project Homepage: https://luajit.org/
 
 LuaJIT is Copyright (C) 2005-2020 Mike Pall.
 LuaJIT is free software, released under the MIT license.
diff --git a/doc/contact.html b/doc/contact.html
index 3173b2a5..c2f34283 100644
--- a/doc/contact.html
+++ b/doc/contact.html
@@ -57,11 +57,11 @@
 <p>
 If you want to report bugs, propose fixes or suggest enhancements,
 please use the
-<a href="https://github.com/LuaJIT/LuaJIT/issues">GitHub issue tracker</a>.
+<a href="https://github.com/LuaJIT/LuaJIT/issues"><span class="ext">&raquo;</span>&nbsp;GitHub issue tracker</a>.
 </p>
 <p>
 Please send general questions to the
-<a href="https://luajit.org/list.html">LuaJIT mailing list</a>.
+<a href="https://luajit.org/list.html"><span class="ext">&raquo;</span>&nbsp;LuaJIT mailing list</a>.
 </p>
 <p>
 You can also send any questions you have directly to me:
diff --git a/doc/ext_ffi_api.html b/doc/ext_ffi_api.html
index 9c815f8b..8b2a605d 100644
--- a/doc/ext_ffi_api.html
+++ b/doc/ext_ffi_api.html
@@ -255,7 +255,7 @@ contents of an <tt>__index</tt> table (if any) may be modified
 afterwards. The associated metatable automatically applies to all uses
 of this type, no matter how the objects are created or where they
 originate from. Note that pre-defined operations on types have
-precedence (e.g. declared field names cannot be overriden).
+precedence (e.g. declared field names cannot be overridden).
 </p>
 <p>
 All standard Lua metamethods are implemented. These are called directly,
diff --git a/doc/ext_ffi_semantics.html b/doc/ext_ffi_semantics.html
index 5415787d..7c4f0d1d 100644
--- a/doc/ext_ffi_semantics.html
+++ b/doc/ext_ffi_semantics.html
@@ -672,7 +672,7 @@ through unions is explicitly detected and allowed.
 <a href="ext_ffi_api.html#ffi_new">constructor</a>. This is equivalent
 to <tt>ffi.new(ct, ...)</tt>, unless a <tt>__new</tt> metamethod is
 defined. The <tt>__new</tt> metamethod is called with the ctype object
-plus any other arguments passed to the contructor. Note that you have to
+plus any other arguments passed to the constructor. Note that you have to
 use <tt>ffi.new</tt> inside of it, since calling <tt>ct(...)</tt> would
 cause infinite recursion.</li>
 
@@ -858,7 +858,7 @@ place of a type, you'd need to use <tt>ffi.typeof("int")</tt> instead.
 <p>
 The main use for parameterized types are libraries implementing abstract
 data types
-(<a href="https://www.freelists.org/post/luajit/ffi-type-of-pointer-to,8">example</a>),
+(<a href="https://www.freelists.org/post/luajit/ffi-type-of-pointer-to,8"><span class="ext">&raquo;</span>&nbsp;example</a>),
 similar to what can be achieved with C++ template metaprogramming.
 Another use case are derived types of anonymous structs, which avoids
 pollution of the global struct namespace.
diff --git a/doc/ext_ffi_tutorial.html b/doc/ext_ffi_tutorial.html
index aab9c234..d06c11f1 100644
--- a/doc/ext_ffi_tutorial.html
+++ b/doc/ext_ffi_tutorial.html
@@ -216,7 +216,7 @@ a fascinating best-selling game is left as an exercise for the reader.
 <h2 id="zlib">Accessing the zlib Compression Library</h2>
 <p>
 The following code shows how to access the <a
-href="https://zlib.net/">zlib</a> compression library from Lua code.
+href="https://zlib.net/"><span class="ext">&raquo;</span>&nbsp;zlib</a> compression library from Lua code.
 We'll define two convenience wrapper functions that take a string and
 compress or uncompress it to another string:
 </p>
@@ -299,7 +299,7 @@ comes pre-installed. Since <tt>ffi.load()</tt> automatically adds any
 missing standard prefixes/suffixes, we can simply load the
 <tt>"z"</tt> library. On Windows it's named <tt>zlib1.dll</tt> and
 you'll have to download it first from the
-<a href="https://zlib.net/">zlib site</a>. The check for
+<a href="https://zlib.net/"><span class="ext">&raquo;</span>&nbsp;zlib site</a>. The check for
 <tt>ffi.os</tt> makes sure we pass the right name to
 <tt>ffi.load()</tt>.
 </p>
diff --git a/doc/extensions.html b/doc/extensions.html
index 68193187..5b7bb58f 100644
--- a/doc/extensions.html
+++ b/doc/extensions.html
@@ -73,9 +73,9 @@ td.excinterop {
 <div id="main">
 <p>
 LuaJIT is fully upwards-compatible with Lua 5.1. It supports all
-<a href="https://www.lua.org/manual/5.1/manual.html#5">standard Lua
+<a href="https://www.lua.org/manual/5.1/manual.html#5"><span class="ext">&raquo;</span>&nbsp;standard Lua
 library functions</a> and the full set of
-<a href="https://www.lua.org/manual/5.1/manual.html#3">Lua/C API
+<a href="https://www.lua.org/manual/5.1/manual.html#3"><span class="ext">&raquo;</span>&nbsp;Lua/C API
 functions</a>.
 </p>
 <p>
@@ -99,7 +99,7 @@ LuaJIT comes with several built-in extension modules:
 <h3 id="bit"><tt>bit.*</tt> &mdash; Bitwise operations</h3>
 <p>
 LuaJIT supports all bitwise operations as defined by
-<a href="https://bitop.luajit.org">Lua BitOp</a>:
+<a href="https://bitop.luajit.org"><span class="ext">&raquo;</span>&nbsp;Lua BitOp</a>:
 </p>
 <pre class="code">
 bit.tobit  bit.tohex  bit.bnot    bit.band bit.bor  bit.bxor
@@ -108,7 +108,7 @@ bit.lshift bit.rshift bit.arshift bit.rol  bit.ror  bit.bswap
 <p>
 This module is a LuaJIT built-in &mdash; you don't need to download or
 install Lua BitOp. The Lua BitOp site has full documentation for all
-<a href="https://bitop.luajit.org/api.html">Lua BitOp API functions</a>.
+<a href="https://bitop.luajit.org/api.html"><span class="ext">&raquo;</span>&nbsp;Lua BitOp API functions</a>.
 The FFI adds support for
 <a href="ext_ffi_semantics.html#cdata_arith">64&nbsp;bit bitwise operations</a>,
 using the same API functions.
diff --git a/doc/faq.html b/doc/faq.html
index 5c4ce533..acc47bae 100644
--- a/doc/faq.html
+++ b/doc/faq.html
@@ -61,16 +61,16 @@ dd { margin-left: 1.5em; }
 <dt>Q: Where can I learn more about LuaJIT and Lua?</dt>
 <dd>
 <ul style="padding: 0;">
-<li>The <a href="https://luajit.org/list.html">LuaJIT mailing list</a> focuses on topics
+<li>The <a href="https://luajit.org/list.html"><span class="ext">&raquo;</span>&nbsp;LuaJIT mailing list</a> focuses on topics
 related to LuaJIT.</li>
 <li>The <a href="http://wiki.luajit.org/"><span class="ext">&raquo;</span>&nbsp;LuaJIT wiki</a> gathers community
 resources about LuaJIT.</li>
 <li>News about Lua itself can be found at the
-<a href="https://www.lua.org/lua-l.html">Lua mailing list</a>.
+<a href="https://www.lua.org/lua-l.html"><span class="ext">&raquo;</span>&nbsp;Lua mailing list</a>.
 The mailing list archives are worth checking out for older postings
 about LuaJIT.</li>
-<li>The <a href="https://lua.org">main Lua.org site</a> has complete
-<a href="https://www.lua.org/docs.html">documentation</a> of the language
+<li>The <a href="https://lua.org"><span class="ext">&raquo;</span>&nbsp;main Lua.org site</a> has complete
+<a href="https://www.lua.org/docs.html"><span class="ext">&raquo;</span>&nbsp;documentation</a> of the language
 and links to books and papers about Lua.</li>
 <li>The community-managed <a href="http://lua-users.org/wiki/"><span class="ext">&raquo;</span>&nbsp;Lua Wiki</a>
 has information about diverse topics.</li>
@@ -83,11 +83,11 @@ has information about diverse topics.</li>
 I'm planning to write more documentation about the internals of LuaJIT.
 In the meantime, please use the following Google Scholar searches
 to find relevant papers:<br>
-Search for: <a href="https://scholar.google.com/scholar?q=Trace+Compiler">Trace Compiler</a><br>
-Search for: <a href="https://scholar.google.com/scholar?q=JIT+Compiler">JIT Compiler</a><br>
-Search for: <a href="https://scholar.google.com/scholar?q=Dynamic+Language+Optimizations">Dynamic Language Optimizations</a><br>
-Search for: <a href="https://scholar.google.com/scholar?q=SSA+Form">SSA Form</a><br>
-Search for: <a href="https://scholar.google.com/scholar?q=Linear+Scan+Register+Allocation">Linear Scan Register Allocation</a><br>
+Search for: <a href="https://scholar.google.com/scholar?q=Trace+Compiler"><span class="ext">&raquo;</span>&nbsp;Trace Compiler</a><br>
+Search for: <a href="https://scholar.google.com/scholar?q=JIT+Compiler"><span class="ext">&raquo;</span>&nbsp;JIT Compiler</a><br>
+Search for: <a href="https://scholar.google.com/scholar?q=Dynamic+Language+Optimizations"><span class="ext">&raquo;</span>&nbsp;Dynamic Language Optimizations</a><br>
+Search for: <a href="https://scholar.google.com/scholar?q=SSA+Form"><span class="ext">&raquo;</span>&nbsp;SSA Form</a><br>
+Search for: <a href="https://scholar.google.com/scholar?q=Linear+Scan+Register+Allocation"><span class="ext">&raquo;</span>&nbsp;Linear Scan Register Allocation</a><br>
 Here is a list of the <a href="http://lua-users.org/lists/lua-l/2009-11/msg00089.html"><span class="ext">&raquo;</span>&nbsp;innovative features in LuaJIT</a>.<br>
 And, you know, reading the source is of course the only way to enlightenment. :-)
 </dd>
@@ -99,7 +99,7 @@ Q: My vararg functions fail after switching to LuaJIT!</dt>
 <dd>LuaJIT is compatible to the Lua 5.1 language standard. It doesn't
 support the implicit <tt>arg</tt> parameter for old-style vararg
 functions from Lua 5.0.<br>Please convert your code to the
-<a href="https://www.lua.org/manual/5.1/manual.html#2.5.9">Lua 5.1
+<a href="https://www.lua.org/manual/5.1/manual.html#2.5.9"><span class="ext">&raquo;</span>&nbsp;Lua 5.1
 vararg syntax</a>.</dd>
 </dl>
 
@@ -156,7 +156,7 @@ don't report a bug about it. Check the <tt>mode</tt> parameter for the
 In general, the only promising approach is to sandbox Lua code at the
 process level and not the VM level.<br>
 
-More reading material at the <a href="http://lua-users.org/wiki/SandBoxes"><span class="ext">&raquo;</span>&nbsp;Lua Wiki</a> and <a href="https://en.wikipedia.org/wiki/Sandbox_(computer_security)">Wikipedia</a>.
+More reading material at the <a href="http://lua-users.org/wiki/SandBoxes"><span class="ext">&raquo;</span>&nbsp;Lua Wiki</a> and <a href="https://en.wikipedia.org/wiki/Sandbox_(computer_security)"><span class="ext">&raquo;</span>&nbsp;Wikipedia</a>.
 </dd>
 </dl>
 
diff --git a/doc/install.html b/doc/install.html
index bc96b661..451fdd41 100644
--- a/doc/install.html
+++ b/doc/install.html
@@ -245,7 +245,7 @@ Obviously the prefixes given during build and installation need to be the same.
 <p>
 Either install one of the open source SDKs
 (<a href="http://mingw.org/"><span class="ext">&raquo;</span>&nbsp;MinGW</a> or
-<a href="https://www.cygwin.com/">Cygwin</a>), which come with a modified
+<a href="https://www.cygwin.com/"><span class="ext">&raquo;</span>&nbsp;Cygwin</a>), which come with a modified
 GCC plus the required development headers.
 Or install Microsoft's Visual Studio (MSVC).
 </p>
@@ -388,7 +388,7 @@ make CROSS=mips-linux- TARGET_CFLAGS="-mips64r2 -mabi=64"
 make CROSS=mipsel-linux- TARGET_CFLAGS="-mips64r2 -mabi=64"
 </pre>
 <p>
-You can cross-compile for <b id="android">Android</b> using the <a href="https://developer.android.com/ndk/">Android NDK</a>.
+You can cross-compile for <b id="android">Android</b> using the <a href="https://developer.android.com/ndk/"><span class="ext">&raquo;</span>&nbsp;Android NDK</a>.
 Please adapt the environment variables to match the install locations and the
 desired target platform. E.g. Android&nbsp;4.1 corresponds to ABI level&nbsp;16.
 </p>
@@ -412,7 +412,7 @@ make HOST_CC="gcc -m32" CROSS=$NDKCROSS \
      TARGET_LD=$NDKCC
 </pre>
 <p>
-You can cross-compile for <b id="ios">iOS 3.0+</b> (iPhone/iPad) using the <a href="https://developer.apple.com/ios/">iOS SDK</a>:
+You can cross-compile for <b id="ios">iOS 3.0+</b> (iPhone/iPad) using the <a href="https://developer.apple.com/ios/"><span class="ext">&raquo;</span>&nbsp;iOS SDK</a>:
 </p>
 <p style="font-size: 8pt;">
 Note: <b>the JIT compiler is disabled for iOS</b>, because regular iOS Apps
@@ -547,7 +547,7 @@ Make sure the <tt>jit</tt> library is loaded or the JIT compiler
 will not be activated.</li>
 <li>The <tt>bit.*</tt> module for bitwise operations
 is already built-in. There's no need to statically link
-<a href="https://bitop.luajit.org/">Lua BitOp</a> to your application.</li>
+<a href="https://bitop.luajit.org/"><span class="ext">&raquo;</span>&nbsp;Lua BitOp</a> to your application.</li>
 </ul>
 
 <h2 id="distro">Hints for Distribution Maintainers</h2>
diff --git a/doc/luajit.html b/doc/luajit.html
index 3ce81c3e..ab768053 100644
--- a/doc/luajit.html
+++ b/doc/luajit.html
@@ -141,13 +141,13 @@ table.feature small {
 <div id="main">
 <p>
 LuaJIT is a <b>Just-In-Time Compiler</b> (JIT) for the
-<a href="https://www.lua.org/">Lua</a> programming language.
+<a href="https://www.lua.org/"><span class="ext">&raquo;</span>&nbsp;Lua</a> programming language.
 Lua is a powerful, dynamic and light-weight programming language.
 It may be embedded or used as a general-purpose, stand-alone language.
 </p>
 <p>
 LuaJIT is Copyright &copy; 2005-2020 Mike Pall, released under the
-<a href="https://www.opensource.org/licenses/mit-license.php">MIT open source license</a>.
+<a href="https://www.opensource.org/licenses/mit-license.php"><span class="ext">&raquo;</span>&nbsp;MIT open source license</a>.
 </p>
 <p>
 </p>
diff --git a/doc/running.html b/doc/running.html
index 2cba1534..f34f1f5f 100644
--- a/doc/running.html
+++ b/doc/running.html
@@ -89,7 +89,7 @@ The <tt>luajit</tt> stand-alone executable is just a slightly modified
 version of the regular <tt>lua</tt> stand-alone executable.
 It supports the same basic options, too. <tt>luajit&nbsp;-h</tt>
 prints a short list of the available options. Please have a look at the
-<a href="https://www.lua.org/manual/5.1/manual.html#6">Lua manual</a>
+<a href="https://www.lua.org/manual/5.1/manual.html#6"><span class="ext">&raquo;</span>&nbsp;Lua manual</a>
 for details.
 </p>
 <p>
diff --git a/dynasm/dynasm.lua b/dynasm/dynasm.lua
index 8e85af24..b34124b7 100644
--- a/dynasm/dynasm.lua
+++ b/dynasm/dynasm.lua
@@ -14,7 +14,7 @@ local _info = {
   vernum =       10400,
   release =     "2015-10-18",
   author =      "Mike Pall",
-  url =         "http://luajit.org/dynasm.html",
+  url =         "https://luajit.org/dynasm.html",
   license =     "MIT",
   copyright =   [[
 Copyright (C) 2005-2020 Mike Pall. All rights reserved.
@@ -38,7 +38,7 @@ CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-[ MIT license: http://www.opensource.org/licenses/mit-license.php ]
+[ MIT license: https://www.opensource.org/licenses/mit-license.php ]
 ]],
 }
 
diff --git a/etc/luajit.1 b/etc/luajit.1
index 2071c155..82097094 100644
--- a/etc/luajit.1
+++ b/etc/luajit.1
@@ -6,7 +6,7 @@ luajit \- Just-In-Time Compiler for the Lua Language
 .B luajit
 [\fIoptions\fR]... [\fIscript\fR [\fIargs\fR]...]
 .SH "WEB SITE"
-.IR http://luajit.org
+.IR https://luajit.org
 .SH DESCRIPTION
 .PP
 This is the command-line program to run Lua programs with \fBLuaJIT\fR.
@@ -80,9 +80,9 @@ Runs some nested loops and shows the resulting traces.
 .SH SEE ALSO
 .PP
 More details in the provided HTML docs or at:
-.IR http://luajit.org
+.IR https://luajit.org
 .br
 More about the Lua language can be found at:
-.IR http://lua.org/docs.html
+.IR https://lua.org/docs.html
 .PP
 lua(1)
diff --git a/etc/luajit.pc b/etc/luajit.pc
index a78f1746..39e1e577 100644
--- a/etc/luajit.pc
+++ b/etc/luajit.pc
@@ -17,7 +17,7 @@ INSTALL_CMOD=${prefix}/${multilib}/lua/${abiver}
 
 Name: LuaJIT
 Description: Just-in-time compiler for Lua
-URL: http://luajit.org
+URL: https://luajit.org
 Version: ${version}
 Requires:
 Libs: -L${libdir} -l${libname}
diff --git a/src/jit/dump.lua b/src/jit/dump.lua
index 06d1e258..d3425bda 100644
--- a/src/jit/dump.lua
+++ b/src/jit/dump.lua
@@ -614,7 +614,7 @@ local function dump_texit(tr, ex, ngpr, nfpr, ...)
   out:write("---- TRACE ", tr, " exit ", ex, "\n")
   if dumpmode.X then
     local regs = {...}
-    if jit.arch == "x64" then
+    if jit.arch:sub(-2) == "64" then
       for i=1,ngpr do
         out:write(format(" %016x", regs[i]))
         if i % 4 == 0 then out:write("\n") end
diff --git a/src/lib_base.c b/src/lib_base.c
index eb604538..c8409042 100644
--- a/src/lib_base.c
+++ b/src/lib_base.c
@@ -504,8 +504,8 @@ LJLIB_CF(print)
     lua_gettable(L, LUA_GLOBALSINDEX);
     tv = L->top-1;
   }
-  shortcut = (tvisfunc(tv) && funcV(tv)->c.ffid == FF_tostring)
-              && !gcrefu(basemt_it(G(L), LJ_TNUMX));
+  shortcut = (tvisfunc(tv) && funcV(tv)->c.ffid == FF_tostring) &&
+             !gcrefu(basemt_it(G(L), LJ_TNUMX));
   for (i = 0; i < nargs; i++) {
     cTValue *o = &L->base[i];
     const char *str;
diff --git a/src/lj_alloc.c b/src/lj_alloc.c
index 5de60b82..21fb7af5 100644
--- a/src/lj_alloc.c
+++ b/src/lj_alloc.c
@@ -6,7 +6,7 @@
 **
 **   This is a version (aka dlmalloc) of malloc/free/realloc written by
 **   Doug Lea and released to the public domain, as explained at
-**   http://creativecommons.org/licenses/publicdomain.
+**   https://creativecommons.org/licenses/publicdomain.
 **
 **   * Version pre-2.8.4 Wed Mar 29 19:46:29 2006    (dl at gee)
 **
@@ -16,8 +16,8 @@
 ** If you want to use dlmalloc in another project, you should get
 ** the original from: ftp://gee.cs.oswego.edu/pub/misc/
 ** For thread-safe derivatives, take a look at:
-** - ptmalloc: http://www.malloc.de/
-** - nedmalloc: http://www.nedprod.com/programs/portable/nedmalloc/
+** - ptmalloc: https://www.malloc.de/
+** - nedmalloc: https://www.nedprod.com/programs/portable/nedmalloc/
 */
 
 #define lj_alloc_c
diff --git a/src/lua.h b/src/lua.h
index 850bd796..6d1634d1 100644
--- a/src/lua.h
+++ b/src/lua.h
@@ -1,7 +1,7 @@
 /*
 ** $Id: lua.h,v 1.218.1.5 2008/08/06 13:30:12 roberto Exp $
 ** Lua - An Extensible Extension Language
-** Lua.org, PUC-Rio, Brazil (http://www.lua.org)
+** Lua.org, PUC-Rio, Brazil (https://www.lua.org)
 ** See Copyright Notice at the end of this file
 */
 
diff --git a/src/luajit.h b/src/luajit.h
index 600031a1..d569fd40 100644
--- a/src/luajit.h
+++ b/src/luajit.h
@@ -1,5 +1,5 @@
 /*
-** LuaJIT -- a Just-In-Time Compiler for Lua. http://luajit.org/
+** LuaJIT -- a Just-In-Time Compiler for Lua. https://luajit.org/
 **
 ** Copyright (C) 2005-2020 Mike Pall. All rights reserved.
 **
@@ -22,7 +22,7 @@
 ** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 ** SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 **
-** [ MIT license: http://www.opensource.org/licenses/mit-license.php ]
+** [ MIT license: https://www.opensource.org/licenses/mit-license.php ]
 */
 
 #ifndef _LUAJIT_H
@@ -34,7 +34,7 @@
 #define LUAJIT_VERSION_NUM      20100  /* Version 2.1.0 = 02.01.00. */
 #define LUAJIT_VERSION_SYM      luaJIT_version_2_1_0_beta3
 #define LUAJIT_COPYRIGHT        "Copyright (C) 2005-2020 Mike Pall"
-#define LUAJIT_URL              "http://luajit.org/"
+#define LUAJIT_URL              "https://luajit.org/"
 
 /* Modes for luaJIT_setmode. */
 #define LUAJIT_MODE_MASK        0x00ff