--- /dev/null
+/*BEGIN_LEGAL
+Intel Open Source License
+
+Copyright (c) 2002-2007 Intel Corporation
+All rights reserved.
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+Redistributions of source code must retain the above copyright notice,
+this list of conditions and the following disclaimer. Redistributions
+in binary form must reproduce the above copyright notice, this list of
+conditions and the following disclaimer in the documentation and/or
+other materials provided with the distribution. Neither the name of
+the Intel Corporation nor the names of its contributors may be used to
+endorse or promote products derived from this software without
+specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE INTEL OR
+ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+END_LEGAL */
+/// @file xed-common-defs.h
+/// @author Mark Charney <mark.charney@intel.com>
+/// @brief some pervasive defines
+
+
+
+#ifndef _XED_COMMON_DEFS_H_
+# define _XED_COMMON_DEFS_H_
+
+////////////////////////////////////////////////////////////////////////////
+
+#define XED_MAX_OPERANDS 11
+#define XED_MAX_NONTERMINALS_PER_INSTRUCTION 20 // FIXME somewhat arbitrary
+
+#define XED_MAX_DISPLACEMENT_BYTES 8 // for most things it is 4, but one 64b mov allows 8
+#define XED_MAX_IMMEDIATE_BYTES 8 // for most things it is max 4, but one 64b mov allows 8.
+
+#define XED_MAX_INSTRUCTION_BYTES 15
+
+
+#define XED_BYTE_MASK(x) ((x) & 0xFF)
+#define XED_BYTE_CAST(x) (STATIC_CAST(xed_uint8_t,x))
+
+////////////////////////////////////////////////////////////////////////////
+// used for defining bit-field widths
+// Microsoft's compiler treats enumerations as signed and if you pack
+// the bit-field with values, when you assign it to a full-width enumeration,
+// you get junk-- a big negative number. This compensates for cases that I've
+// encountered
+#if defined(__GNUC__)
+# define XED_BIT_FIELD_PSEUDO_WIDTH4 4
+# define XED_BIT_FIELD_PSEUDO_WIDTH8 8
+#else
+# define XED_BIT_FIELD_PSEUDO_WIDTH4 8
+# define XED_BIT_FIELD_PSEUDO_WIDTH8 16
+#endif
+
+
+#endif
+
+
+
+
+
+
+
+
+
