types.hh revision 4153 
1/*
2 * Copyright (c) 2007 The Hewlett-Packard Development Company
3 * All rights reserved.
4 *
5 * Redistribution and use of this software in source and binary forms,
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34 * sublicense is granted herewith.  Derivatives of the software and
35 * output created using the software may be prepared, but only for
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39 * and (ii) such Derivatives of the software include the above copyright
40 * notice to acknowledge the contribution from this software where
41 * applicable, this list of conditions and the disclaimer below.
42 *
43 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
44 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
45 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
46 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
47 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
48 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
49 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
50 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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54 *
55 * Authors: Gabe Black
56 */
57
58#ifndef __ARCH_X86_TYPES_HH__
59#define __ARCH_X86_TYPES_HH__
60
61#include <inttypes.h>
62
63namespace X86ISA
64{
65    //XXX This won't work
66    typedef uint32_t MachInst;
67    //XXX This won't work either
68    typedef uint64_t ExtMachInst;
69
70    typedef uint64_t IntReg;
71    //XXX Should this be a 128 bit structure for XMM memory ops?
72    typedef uint64_t LargestRead;
73    typedef uint64_t MiscReg;
74
75    //These floating point types are correct for mmx, but not
76    //technically for x87 (80 bits) or at all for xmm (128 bits)
77    typedef double FloatReg;
78    typedef uint64_t FloatRegBits;
79    typedef union
80    {
81        IntReg intReg;
82        FloatReg fpReg;
83        MiscReg ctrlReg;
84    } AnyReg;
85
86    //XXX This is very hypothetical. X87 instructions would need to
87    //change their "context" constantly. It's also not clear how
88    //this would be handled as far as out of order execution.
89    //Maybe x87 instructions are in order?
90    enum RegContextParam
91    {
92        CONTEXT_X87_TOP
93    };
94
95    typedef int RegContextVal;
96
97    typedef uint8_t RegIndex;
98};
99
100#endif // __ARCH_X86_TYPES_HH__
101