/* IBM_PROLOG_BEGIN_TAG                                                   */
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/* $Source: import/chips/centaur/common/include/cen_const_common.H $      */
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/* IBM_PROLOG_END_TAG                                                     */


/*! \brief These are macros used for the scom_addresses.H
 *
 *  Provides macro defintions for defining scom constants
 *  for assembly and C
 *
 */

// - HWP metadata

///
/// @file const_common.H
/// @brief These are macros used for the scom_addresses.H
///
// *HWP HWP Owner: Ben Gass <bgass@us.ibm.com>
// *HWP FW Owner: ? <?>
// *HWP Team: SoA
// *HWP Level: 1
// *HWP Consumed by: XX:XX

#ifndef __CEN_CONST_COMMON_H
#define __CEN_CONST_COMMON_H

#ifndef RULL
    #define RULL(x) x##ull
#endif

#if defined __cplusplus

#include <stdint.h>

template <typename T, uint64_t IDX >
struct cen_fixup
{
    static const T value = T(0);
};

template <uint64_t IDX >
struct cen_fixfld
{
    static const uint8_t value = 255;
};

//Simplified for Centaur!  To fix a register or field just do:
//
//CEN_FIXREG32 (CEN_MBA_1_MAINT_BUFF1_DATA_ECC1_RO, RULL(0xDEADBEEF));
//


#define CEN_FIXREG8(name, newexpr) template<> struct cen_fixup<uint8_t,IDX_##name> { static const uint8_t value = newexpr; };
#define CEN_FIXREG32(name, newexpr) template<> struct cen_fixup<uint32_t,IDX_##name> { static const uint32_t value = newexpr; };
#define CEN_FIXREG64(name, newexpr) template<> struct cen_fixup<uint64_t,IDX_##name> { static const uint64_t value = newexpr; };

#define CEN_REG8(name, expr ) static const uint8_t name = cen_fixup<uint8_t,IDX_##name>::value ? cen_fixup<uint8_t,IDX_##name>::value : expr;
#define CEN_REG32(name, expr) static const uint32_t name = cen_fixup<uint32_t,IDX_##name>::value ? cen_fixup<uint32_t,IDX_##name>::value : expr;
#define CEN_REG64(name, expr) static const uint64_t name = cen_fixup<uint64_t,IDX_##name>::value ? cen_fixup<uint64_t,IDX_##name>::value : expr;

#define CEN_FIXFLD(name, newfld) template<> struct cen_fixfld<IDX_##name> { static const uint8_t value =  newfld; };

#define CEN_FLD(name, fld) static const uint8_t name = cen_fixfld<IDX_##name>::value != 255 ? cen_fixfld<IDX_##name>::value : fld;

#else // C code

// CONST_UINT[8,3,64]_T() can't be used in C code/headers; Use
//
//     #define <symbol> <value> [ or ULL(<value>) for 64-bit constants

#endif  // __cplusplus

#endif  // __CEN_CONST_COMMON_H
