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+/*
+ * Copyright (c) 2007 The Hewlett-Packard Development Company
+ * All rights reserved.
+ *
+ * Redistribution and use of this software in source and binary forms,
+ * with or without modification, are permitted provided that the
+ * following conditions are met:
+ *
+ * The software must be used only for Non-Commercial Use which means any
+ * use which is NOT directed to receiving any direct monetary
+ * compensation for, or commercial advantage from such use.  Illustrative
+ * examples of non-commercial use are academic research, personal study,
+ * teaching, education and corporate research & development.
+ * Illustrative examples of commercial use are distributing products for
+ * commercial advantage and providing services using the software for
+ * commercial advantage.
+ *
+ * If you wish to use this software or functionality therein that may be
+ * covered by patents for commercial use, please contact:
+ *     Director of Intellectual Property Licensing
+ *     Office of Strategy and Technology
+ *     Hewlett-Packard Company
+ *     1501 Page Mill Road
+ *     Palo Alto, California  94304
+ *
+ * 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 COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.  No right of
+ * sublicense is granted herewith.  Derivatives of the software and
+ * output created using the software may be prepared, but only for
+ * Non-Commercial Uses.  Derivatives of the software may be shared with
+ * others provided: (i) the others agree to abide by the list of
+ * conditions herein which includes the Non-Commercial Use restrictions;
+ * and (ii) such Derivatives of the software include the above copyright
+ * notice to acknowledge the contribution from this software where
+ * applicable, this list of conditions and the disclaimer below.
+ *
+ * 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 COPYRIGHT
+ * OWNER OR 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.
+ *
+ * Authors: Gabe Black
+ */
+
+#ifndef __ARCH_X86_ISATRAITS_HH__
+#define __ARCH_X86_ISATRAITS_HH__
+
+namespace LittleEndianGuest {}
+
+namespace X86ISA
+{
+    //This makes sure the little endian version of certain functions
+    //are used.
+    using namespace LittleEndianGuest;
+
+    // X86 does not have a delay slot
+#define ISA_HAS_DELAY_SLOT 0
+
+    // X86 NOP (XCHG rAX, rAX)
+    //XXX This needs to be set to an intermediate instruction struct
+    //which encodes this instruction
+
+    // These enumerate all the registers for dependence tracking.
+    enum DependenceTags {
+        //The number of microcode registers needs to be added to this
+        FP_Base_DepTag = 16,
+        Ctrl_Base_DepTag =
+            FP_Base_DepTag +
+            //mmx/x87 registers
+            8 +
+            //xmm registers
+            16
+    };
+
+    // semantically meaningful register indices
+    //There is no such register in X86
+    const int ZeroReg = 0;
+    const int StackPointerReg = 4; //RSP
+    //X86 doesn't seem to have a link register
+    const int ReturnAddressReg = 0;
+    const int ReturnValueReg = 0; //RAX
+    const int FramePointerReg = 5; //RBP
+    const int ArgumentReg0 = 7; //RDI
+    const int ArgumentReg1 = 6; //RSI
+    const int ArgumentReg2 = 2; //RDX
+    const int ArgumentReg3 = 1; //RCX
+    const int ArgumentReg4 = 8; //R8W
+    const int ArgumentReg5 = 9; //R9W
+
+    // Some OS syscalls use a second register (rdx) to return a second
+    // value
+    const int SyscallPseudoReturnReg = 2; //RDX
+
+    //XXX These numbers are bogus
+    const int MaxInstSrcRegs = 10;
+    const int MaxInstDestRegs = 10;
+
+    //4k. This value is not constant on x86.
+    const int LogVmPageSize = 12;
+    const int VMPageSize = (1 << LogVmPageSize);
+
+    const int BranchPredAddrShiftAmt = 0;
+};
+
+#endif // __ARCH_X86_ISATRAITS_HH__