xref: /gem5/src/arch/x86/types.cc

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 * Authors: Gabe Black
 */

#ifndef __ARCH_X86_TYPES_HH__
#define __ARCH_X86_TYPES_HH__

#include <inttypes.h>

namespace X86ISA
{
    //XXX This won't work
    typedef uint32_t MachInst;
    //XXX This won't work either
    typedef uint64_t ExtMachInst;

    typedef uint64_t IntReg;
    typedef uint64_t MiscReg;

    //These floating point types are correct for mmx, but not
    //technically for x87 (80 bits) or at all for xmm (128 bits)
    typedef double FloatReg;
    typedef uint64_t FloatRegBits;
    typedef union
    {
        IntReg intReg;
        FloatReg fpReg;
        MiscReg ctrlReg;
    } AnyReg;

    //XXX This is very hypothetical. X87 instructions would need to
    //change their "context" constantly. It's also not clear how
    //this would be handled as far as out of order execution.
    //Maybe x87 instructions are in order?
    enum RegContextParam
    {
        CONTEXT_X87_TOP
    };

    typedef int RegContextVal;

    typedef uint8_t RegIndex;
};

#endif // __ARCH_X86_TYPES_HH__