Changeset 3525 for trunk/kLdr/kLdrHlp.h


Ignore:
Timestamp:
Aug 20, 2007, 12:14:55 AM (18 years ago)
Author:
bird
Message:

made the format headers usable externally.

File:
1 edited

Legend:

Unmodified
Added
Removed

  • trunk/kLdr/kLdrHlp.h

    r2958 r3525  
    3232 * @internal
    3333 * @{ */
    34 
    35 /** Get the minimum of two values. */
    36 #define KLDR_MIN(a, b)              ((a) <= (b) ? (a) : (b))
    37 /** Get the maximum of two values. */
    38 #define KLDR_MAX(a, b)              ((a) >= (b) ? (a) : (b))
    39 /** Calculate the offset of a structure member. */
    40 #define KLDR_OFFSETOF(strct, memb)  ( (size_t)( &((strct *)0)->memb ) )
    41 /** Align a size_t value. */
    42 #define KLDR_ALIGN_Z(val, align)    ( ((val) + ((align) - 1)) & ~(size_t)((align) - 1) )
    43 /** Align a void * value. */
    44 #define KLDR_ALIGN_P(pv, align)     ( (void *)( ((uintptr_t)(pv) + ((align) - 1)) & ~(uintptr_t)((align) - 1) ) )
    45 /** Align a size_t value. */
    46 #define KLDR_ALIGN_ADDR(val, align) ( ((val) + ((align) - 1)) & ~(KLDRADDR)((align) - 1) )
    47 /** Number of elements in an array. */
    48 #define KLDR_ELEMENTS(a)            ( sizeof(a) / sizeof((a)[0]) )
    49 
    50 
    51 /** @name Endian Conversion
    52  * @{ */
    53 
    54 /** @def KLDRHLP_E2E_U16
    55  * Convert the endian of an unsigned 16-bit value. */
    56 # define KLDRHLP_E2E_U16(u16)   ( (uint16_t) (((u16) >> 8) | ((u16) << 8)) )
    57 /** @def KLDRHLP_E2E_U32
    58  * Convert the endian of an unsigned 32-bit value. */
    59 # define KLDRHLP_E2E_U32(u32)   (   ( ((u32) & UINT32_C(0xff000000)) >> 24 ) \
    60                                   | ( ((u32) & UINT32_C(0x00ff0000)) >>  8 ) \
    61                                   | ( ((u32) & UINT32_C(0x0000ff00)) <<  8 ) \
    62                                   | ( ((u32) & UINT32_C(0x000000ff)) << 24 ) \
    63                                 )
    64 /** @def KLDRHLP_E2E_U64
    65  * Convert the endian of an unsigned 64-bit value. */
    66 # define KLDRHLP_E2E_U64(u64)   (   ( ((u64) & UINT64_C(0xff00000000000000)) >> 56 ) \
    67                                   | ( ((u64) & UINT64_C(0x00ff000000000000)) >> 40 ) \
    68                                   | ( ((u64) & UINT64_C(0x0000ff0000000000)) >> 24 ) \
    69                                   | ( ((u64) & UINT64_C(0x000000ff00000000)) >>  8 ) \
    70                                   | ( ((u64) & UINT64_C(0x00000000ff000000)) <<  8 ) \
    71                                   | ( ((u64) & UINT64_C(0x0000000000ff0000)) << 24 ) \
    72                                   | ( ((u64) & UINT64_C(0x000000000000ff00)) << 40 ) \
    73                                   | ( ((u64) & UINT64_C(0x00000000000000ff)) << 56 ) \
    74                                 )
    75 
    76 /** @def KLDRHLP_LE2H_U16
    77  * Unsigned 16-bit little-endian to host endian. */
    78 /** @def KLDRHLP_LE2H_U32
    79  * Unsigned 32-bit little-endian to host endian. */
    80 /** @def KLDRHLP_LE2H_U64
    81  * Unsigned 64-bit little-endian to host endian. */
    82 /** @def KLDRHLP_BE2H_U16
    83  * Unsigned 16-bit big-endian to host endian. */
    84 /** @def KLDRHLP_BE2H_U32
    85  * Unsigned 32-bit big-endian to host endian. */
    86 /** @def KLDRHLP_BE2H_U64
    87  * Unsigned 64-bit big-endian to host endian. */
    88 #ifdef KLDR_LITTLE_ENDIAN
    89 # define KLDRHLP_LE2H_U16(u16)  ((uint16_t)(u16))
    90 # define KLDRHLP_LE2H_U32(u32)  ((uint32_t)(u32))
    91 # define KLDRHLP_LE2H_U64(u64)  ((uint32_t)(u32))
    92 # define KLDRHLP_BE2H_U16(u16)  KLDRHLP_E2E_U16(u16)
    93 # define KLDRHLP_BE2H_U32(u32)  KLDRHLP_E2E_U32(u32)
    94 # define KLDRHLP_BE2H_U64(u64)  KLDRHLP_E2E_U64(u64)
    95 #elif defined(KLDR_BIG_ENDIAN)
    96 # define KLDRHLP_LE2H_U16(u16)  KLDRHLP_E2E_U16(u16)
    97 # define KLDRHLP_LE2H_U32(u32)  KLDRHLP_E2E_U32(u32)
    98 # define KLDRHLP_LE2H_U32(u64)  KLDRHLP_E2E_U64(u64)
    99 # define KLDRHLP_BE2H_U16(u16)  ((uint16_t)(u16))
    100 # define KLDRHLP_BE2H_U32(u32)  ((uint32_t)(u32))
    101 # define KLDRHLP_BE2H_U64(u64)  ((uint32_t)(u32))
    102 #else
    103 # error "KLDR_BIG_ENDIAN or KLDR_LITTLE_ENDIAN is supposed to be defined."
    104 #endif
    105 
    106 /** @} */
    107 
    10834
    10935/*
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