cc.hh

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/*
 * Copyright (c) 2014 ARM Limited
 * All rights reserved
 *
 * The license below extends only to copyright in the software and shall
 * not be construed as granting a license to any other intellectual
 * property including but not limited to intellectual property relating
 * to a hardware implementation of the functionality of the software
 * licensed hereunder.  You may use the software subject to the license
 * terms below provided that you ensure that this notice is replicated
 * unmodified and in its entirety in all distributions of the software,
 * modified or unmodified, in source code or in binary form.
 *
 * 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
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 * this software without specific prior written permission.
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#ifndef __ARCH_ARM_REGS_CC_HH__
#define __ARCH_ARM_REGS_CC_HH__
 
#include "cpu/reg_class.hh"
#include "debug/CCRegs.hh"
 
namespace gem5
{
 
namespace ArmISA
{
 
namespace cc_reg
{
 
enum : RegIndex
{
    _NzIdx,
    _CIdx,
    _VIdx,
    _GeIdx,
    _FpIdx,
    _ZeroIdx,
    NumRegs
};
 
const char * const RegName[NumRegs] = {
    "nz",
    "c",
    "v",
    "ge",
    "fp",
    "zero"
};
 
} // namespace cc_reg
 
class CCRegClassOps : public RegClassOps
{
  public:
    std::string
    regName(const RegId &id) const override
    {
        return cc_reg::RegName[id.index()];
    }
};
 
static inline CCRegClassOps ccRegClassOps;
 
inline constexpr RegClass ccRegClass = RegClass(CCRegClass, CCRegClassName,
        cc_reg::NumRegs, debug::CCRegs).ops(ccRegClassOps);
 
namespace cc_reg
{
 
inline constexpr RegId
    Nz = ccRegClass[_NzIdx],
    C = ccRegClass[_CIdx],
    V = ccRegClass[_VIdx],
    Ge = ccRegClass[_GeIdx],
    Fp = ccRegClass[_FpIdx],
    Zero = ccRegClass[_ZeroIdx];
 
} // namespace cc_reg
 
enum ConditionCode
{
    COND_EQ  =   0,
    COND_NE, //  1
    COND_CS, //  2
    COND_CC, //  3
    COND_MI, //  4
    COND_PL, //  5
    COND_VS, //  6
    COND_VC, //  7
    COND_HI, //  8
    COND_LS, //  9
    COND_GE, // 10
    COND_LT, // 11
    COND_GT, // 12
    COND_LE, // 13
    COND_AL, // 14
    COND_UC  // 15
};
 
} // namespace ArmISA
} // namespace gem5
 
#endif // __ARCH_ARM_REGS_CC_HH__