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27 #ifndef __DAL_FIXED32_32_H__
28 #define __DAL_FIXED32_32_H__
36 static const struct fixed32_32 dal_fixed32_32_zero = { 0 };
37 static const struct fixed32_32 dal_fixed32_32_one = { 0x100000000LL };
38 static const struct fixed32_32 dal_fixed32_32_half = { 0x80000000LL };
40 struct fixed32_32 dal_fixed32_32_from_fraction(uint32_t n, uint32_t d);
41 static inline struct fixed32_32 dal_fixed32_32_from_int(uint32_t value)
45 fx.value = (uint64_t)value<<32;
49 struct fixed32_32 dal_fixed32_32_add(
50 struct fixed32_32 lhs,
51 struct fixed32_32 rhs);
52 struct fixed32_32 dal_fixed32_32_add_int(
53 struct fixed32_32 lhs,
55 struct fixed32_32 dal_fixed32_32_sub(
56 struct fixed32_32 lhs,
57 struct fixed32_32 rhs);
58 struct fixed32_32 dal_fixed32_32_sub_int(
59 struct fixed32_32 lhs,
61 struct fixed32_32 dal_fixed32_32_mul(
62 struct fixed32_32 lhs,
63 struct fixed32_32 rhs);
64 struct fixed32_32 dal_fixed32_32_mul_int(
65 struct fixed32_32 lhs,
67 struct fixed32_32 dal_fixed32_32_div(
68 struct fixed32_32 lhs,
69 struct fixed32_32 rhs);
70 struct fixed32_32 dal_fixed32_32_div_int(
71 struct fixed32_32 lhs,
74 static inline struct fixed32_32 dal_fixed32_32_min(struct fixed32_32 lhs,
75 struct fixed32_32 rhs)
77 return (lhs.value < rhs.value) ? lhs : rhs;
80 static inline struct fixed32_32 dal_fixed32_32_max(struct fixed32_32 lhs,
81 struct fixed32_32 rhs)
83 return (lhs.value > rhs.value) ? lhs : rhs;
86 static inline bool dal_fixed32_32_gt(struct fixed32_32 lhs, struct fixed32_32 rhs)
88 return lhs.value > rhs.value;
91 static inline bool dal_fixed32_32_gt_int(struct fixed32_32 lhs, uint32_t rhs)
93 return lhs.value > ((uint64_t)rhs<<32);
96 static inline bool dal_fixed32_32_lt(struct fixed32_32 lhs, struct fixed32_32 rhs)
98 return lhs.value < rhs.value;
101 static inline bool dal_fixed32_32_lt_int(struct fixed32_32 lhs, uint32_t rhs)
103 return lhs.value < ((uint64_t)rhs<<32);
106 static inline bool dal_fixed32_32_le(struct fixed32_32 lhs, struct fixed32_32 rhs)
108 return lhs.value <= rhs.value;
111 static inline bool dal_fixed32_32_le_int(struct fixed32_32 lhs, uint32_t rhs)
113 return lhs.value <= ((uint64_t)rhs<<32);
116 static inline bool dal_fixed32_32_eq(struct fixed32_32 lhs, struct fixed32_32 rhs)
118 return lhs.value == rhs.value;
121 uint32_t dal_fixed32_32_ceil(struct fixed32_32 value);
122 static inline uint32_t dal_fixed32_32_floor(struct fixed32_32 value)
124 return value.value>>32;
127 uint32_t dal_fixed32_32_round(struct fixed32_32 value);