detect.h

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#ifndef CPU_DETECT_H
#define CPU_DETECT_H

#if defined(__arm__) /* GCC */ \
    || defined(__ARM4TM__) /* IAR: defined for all cores >= 4tm */
    #define CPU_ARM                 1
    #define CPU_ID                  arm

    // AT91SAM7S core family
    #if defined(__ARM_AT91SAM7S32__)
        #define CPU_ARM_AT91         1
        #define CPU_ARM_AT91SAM7S32  1
    #else
        #define CPU_ARM_AT91SAM7S32  0
    #endif

    #if defined(__ARM_AT91SAM7S64__)
        #define CPU_ARM_AT91         1
        #define CPU_ARM_AT91SAM7S64  1
    #else
        #define CPU_ARM_AT91SAM7S64  0
    #endif

    #if defined(__ARM_AT91SAM7S128__)
        #define CPU_ARM_AT91         1
        #define CPU_ARM_AT91SAM7S128 1
    #else
        #define CPU_ARM_AT91SAM7S128 0
    #endif

    #if defined(__ARM_AT91SAM7S256__)
        #define CPU_ARM_AT91         1
        #define CPU_ARM_AT91SAM7S256 1
    #else
        #define CPU_ARM_AT91SAM7S256 0
    #endif

    // AT91SAM7X core family
    #if defined(__ARM_AT91SAM7X128__)
        #define CPU_ARM_AT91         1
        #define CPU_ARM_AT91SAM7X128 1
    #else
        #define CPU_ARM_AT91SAM7X128 0
    #endif

    #if defined(__ARM_AT91SAM7X256__)
        #define CPU_ARM_AT91         1
        #define CPU_ARM_AT91SAM7X256 1
    #else
        #define CPU_ARM_AT91SAM7X256 0
    #endif

    #if defined (__ARM_LM3S1968__)
        #define CPU_ARM_LM3S        1
        #define CPU_ARM_LM3S1968    1
    #else
        #define CPU_ARM_LM3S1968    0
    #endif



    #if defined(CPU_ARM_AT91)
        #if CPU_ARM_AT91SAM7S32 + CPU_ARM_AT91SAM7S64 \
        + CPU_ARM_AT91SAM7S128 + CPU_ARM_AT91SAM7S256 \
        + CPU_ARM_AT91SAM7X128 + CPU_ARM_AT91SAM7X256 != 1
            #error ARM CPU configuration error
        #endif
        #define CPU_ARM_LM3S        0

    #elif defined (CPU_ARM_LM3S)
        #if CPU_ARM_LM3S1968 + 0 != 1
            #error Luminary ARM CPU configuration error
        #endif
        #define CPU_ARM_AT91        0
    /* #elif Add other ARM families here */
    #else
        #define CPU_ARM_AT91        0
        #define CPU_ARM_LM3S        0
    #endif


    #if CPU_ARM_AT91 + CPU_ARM_LM3S + 0 /* Add other ARM families here */ != 1
        #error ARM CPU configuration error
    #endif
#else
    #define CPU_ARM                 0

    /* ARM Families */
    #define CPU_ARM_AT91            0
    #define CPU_ARM_LM3S            0

    /* ARM CPUs */
    #define CPU_ARM_AT91SAM7S32     0
    #define CPU_ARM_AT91SAM7S64     0
    #define CPU_ARM_AT91SAM7S128    0
    #define CPU_ARM_AT91SAM7S256    0
    #define CPU_ARM_AT91SAM7X128    0
    #define CPU_ARM_AT91SAM7X256    0

    #define CPU_ARM_LM3S1968        0
#endif

#if (defined(__IAR_SYSTEMS_ICC__) || defined(__IAR_SYSTEMS_ICC)) \
    && !defined(__ARM4TM__) /* IAR: if not ARM assume I196 */
    #warning Assuming CPU is I196
    #define CPU_I196        1
    #define CPU_ID                  i196
#else
    #define CPU_I196                0
#endif

#if defined(__i386__) /* GCC */ \
    || (defined(_M_IX86) && !defined(_WIN64)) /* MSVC */
    #define CPU_X86                 1
    #define CPU_X86_32              1
    #define CPU_X86_64              0
    #define CPU_ID                  x86
#elif defined(__x86_64__) /* GCC */ \
    || (defined(_M_IX86) && defined(_WIN64)) /* MSVC */
    #define CPU_X86                 1
    #define CPU_X86_32              0
    #define CPU_X86_64              1
    #define CPU_ID                  x86
#else
    #define CPU_X86                 0
    #define CPU_I386                0
    #define CPU_X86_64              0
#endif

#if defined (_ARCH_PPC) || defined(_ARCH_PPC64)
    #define CPU_PPC                 1
    #define CPU_ID                  ppc
    #if defined(_ARCH_PPC)
        #define CPU_PPC32       1
    #else
            #define CPU_PPC32       0
    #endif
    #if defined(_ARCH_PPC64)
        #define CPU_PPC64       1
    #else
            #define CPU_PPC64       0
    #endif
#else
    #define CPU_PPC                 0
    #define CPU_PPC32               0
    #define CPU_PPC64               0
#endif

#if defined(__m56800E__) || defined(__m56800__)
    #define CPU_DSP56K              1
    #define CPU_ID                  dsp56k
#else
    #define CPU_DSP56K              0
#endif

#if defined (__AVR__)
    #define CPU_AVR                 1
    #define CPU_ID                  avr

    #if defined(__AVR_ATmega32__)
        #define CPU_AVR_ATMEGA32    1
    #else
        #define CPU_AVR_ATMEGA32    0
    #endif

    #if defined(__AVR_ATmega64__)
        #define CPU_AVR_ATMEGA64    1
    #else
        #define CPU_AVR_ATMEGA64    0
    #endif

    #if defined(__AVR_ATmega103__)
        #define CPU_AVR_ATMEGA103   1
    #else
        #define CPU_AVR_ATMEGA103   0
    #endif

    #if defined(__AVR_ATmega128__)
        #define CPU_AVR_ATMEGA128   1
    #else
        #define CPU_AVR_ATMEGA128   0
    #endif

    #if defined(__AVR_ATmega8__)
        #define CPU_AVR_ATMEGA8     1
    #else
        #define CPU_AVR_ATMEGA8     0
    #endif

    #if defined(__AVR_ATmega168__)
        #define CPU_AVR_ATMEGA168   1
    #else
        #define CPU_AVR_ATMEGA168   0
    #endif

    #if defined(__AVR_ATmega1281__)
        #define CPU_AVR_ATMEGA1281  1
    #else
        #define CPU_AVR_ATMEGA1281  0
    #endif

    #if CPU_AVR_ATMEGA32 + CPU_AVR_ATMEGA64 + CPU_AVR_ATMEGA103 + CPU_AVR_ATMEGA128 \
      + CPU_AVR_ATMEGA8 + CPU_AVR_ATMEGA168 + CPU_AVR_ATMEGA1281 != 1
        #error AVR CPU configuration error
    #endif
#else
    #define CPU_AVR                 0
    #define CPU_AVR_ATMEGA8         0
    #define CPU_AVR_ATMEGA168       0
    #define CPU_AVR_ATMEGA32        0
    #define CPU_AVR_ATMEGA64        0
    #define CPU_AVR_ATMEGA103       0
    #define CPU_AVR_ATMEGA128       0
    #define CPU_AVR_ATMEGA1281      0
#endif


/* Self-check for the detection: only one CPU must be detected */
#if CPU_ARM + CPU_I196 + CPU_X86 + CPU_PPC + CPU_DSP56K + CPU_AVR == 0
    #error Unknown CPU
#elif !defined(CPU_ID)
    #error CPU_ID not defined
#elif CPU_ARM + CPU_I196 + CPU_X86 + CPU_PPC + CPU_DSP56K + CPU_AVR != 1
    #error Internal CPU configuration error
#endif


#endif /* CPU_DETECT_H */