Subversion Repositories HelenOS

Rev

Rev 2787 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 2787 Rev 2925
Line 33... Line 33...
33 
 */
 33 
 */
34 
 
 34 
 
35 
#ifndef __SFTYPES_H__
 35 
#ifndef __SFTYPES_H__
36 
#define __SFTYPES_H__
 36 
#define __SFTYPES_H__
37 
 
 37 
 
38 
#include <endian.h>
 38 
#include <byteorder.h>
39 
#include <stdint.h>
 39 
#include <stdint.h>
40 
 
 40 
 
41 
typedef union {
 41 
typedef union {
42 
    float f;
 42 
    float f;
43 
    uint32_t binary;
 43 
    uint32_t binary;
44 
 
 44 
 
45 
    struct  {
 45 
    struct  {
46 
        #if __BYTE_ORDER == __BIG_ENDIAN
 46 
#if defined(ARCH_IS_BIG_ENDIAN)
47 
        uint32_t sign:1;
 47 
        uint32_t sign:1;
48 
        uint32_t exp:8;
 48 
        uint32_t exp:8;
49 
        uint32_t fraction:23;
 49 
        uint32_t fraction:23;
50 
        #elif __BYTE_ORDER == __LITTLE_ENDIAN
 50 
#elif defined(ARCH_IS_LITTLE_ENDIAN)
51 
        uint32_t fraction:23;
 51 
        uint32_t fraction:23;
52 
        uint32_t exp:8;
 52 
        uint32_t exp:8;
53 
        uint32_t sign:1;
 53 
        uint32_t sign:1;
54 
        #else
54 
#else
55 
            #error "Unknown endians."
 55 
#error "Unknown endians."
56 
        #endif
 56 
#endif
57 
        } parts __attribute__ ((packed));
 57 
        } parts __attribute__ ((packed));
58 
    } float32;
 58 
    } float32;
59 
   
 59 
   
60 
typedef union {
 60 
typedef union {
61 
    double d;
 61 
    double d;
62 
    uint64_t binary;
 62 
    uint64_t binary;
63 
   
 63 
   
64 
    struct  {
 64 
    struct  {
65 
        #if __BYTE_ORDER == __BIG_ENDIAN
 65 
#if defined(ARCH_IS_BIG_ENDIAN)
66 
        uint64_t sign:1;
 66 
        uint64_t sign:1;
67 
        uint64_t exp:11;
 67 
        uint64_t exp:11;
68 
        uint64_t fraction:52;
 68 
        uint64_t fraction:52;
69 
        #elif __BYTE_ORDER == __LITTLE_ENDIAN
 69 
#elif defined(ARCH_IS_LITTLE_ENDIAN)
70 
        uint64_t fraction:52;
 70 
        uint64_t fraction:52;
71 
        uint64_t exp:11;
 71 
        uint64_t exp:11;
72 
        uint64_t sign:1;
 72 
        uint64_t sign:1;
73 
        #else
73 
#else
74 
            #error "Unknown endians."
 74 
#error "Unknown endians."
75 
        #endif
 75 
#endif
76 
        } parts __attribute__ ((packed));
 76 
        } parts __attribute__ ((packed));
77 
    } float64;
 77 
    } float64;
78 
 
 78 
 
79 
#define FLOAT32_MAX 0x7f800000
 79 
#define FLOAT32_MAX 0x7f800000
80 
#define FLOAT32_MIN 0xff800000
 80 
#define FLOAT32_MIN 0xff800000
81 
#define FLOAT64_MAX
 81 
#define FLOAT64_MAX
82 
#define FLOAT64_MIN
 82 
#define FLOAT64_MIN
83 
 
 83 
 
- 
 
 84 
/*
84 
/* For recognizing NaNs or infinity use isFloat32NaN and is Float32Inf, comparing with this constants is not sufficient */
 85 
 * For recognizing NaNs or infinity use isFloat32NaN and is Float32Inf,
- 
 
 86 
 * comparing with these constants is not sufficient.
- 
 
 87 
 */
85 
#define FLOAT32_NAN 0x7FC00001
 88 
#define FLOAT32_NAN 0x7FC00001
86 
#define FLOAT32_SIGNAN 0x7F800001
 89 
#define FLOAT32_SIGNAN 0x7F800001
87 
#define FLOAT32_INF 0x7F800000
 90 
#define FLOAT32_INF 0x7F800000
88 
 
 91 
 
89 
#define FLOAT64_NAN 0x7FF8000000000001ll
 92 
#define FLOAT64_NAN 0x7FF8000000000001ll