Tizen RT Libs&Environment  v1.1 D4
fixedmath.h File Reference
#include <stdint.h>
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Macros

#define b8HUNDRED   0x6400 /* 100 */
 
#define b8TEN   0x0a00 /* 10 */
 
#define b8ONE   0x0100 /* 1 */
 
#define b8HALF   0x0080 /* 0.5 */
 
#define b8ONETENTH   0x001a /* 0.1 (acutally 0.1015625) */
 
#define b8ONEHUNDRTH   0x0003 /* 0.01 (actualy 0.0117198765) */
 
#define b8HALFPI   0x0192 /* 1.5703125 */
 
#define b8PI   0x0324 /* 3.1406250 */
 
#define b8TWOPI   0x0648 /* 6.2812500 */
 
#define b8MAX   0x7fff /* Max value of b8_t */
 
#define ub8MAX   0xffff /* Max value of rb8_t */
 
#define b8MIN   0x8000 /* Min value of b8_t */
 
#define ub8MIN   0x0000 /* Min value of ub8_t */
 
#define b16THOUSAND   0x03e80000 /* 1000 */
 
#define b16HUNDRED   0x00640000 /* 100 */
 
#define b16TEN   0x000a0000 /* 10 */
 
#define b16ONE   0x00010000 /* 1 */
 
#define b16HALF   0x00008000 /* 0.5 */
 
#define b16ONETENTH   0x0000199a /* 0.1 (actually 0.100006..) */
 
#define b16ONEHUNDRTH   0x0000028f /* 0.01 (actually 0.0099945..) */
 
#define b16ONETHOUSTH   0x00000042 /* 0.001 (actually 0.000100708..) */
 
#define b16HALFPI   0x0001921f /* 1.57078552246 */
 
#define b16PI   0x0003243f /* 3.14158630371 */
 
#define b16TWOPI   0x0006487b /* 6.28312683105 */
 
#define b16MAX   0x7fffffff /* Max value of b16_t */
 
#define ub16MAX   0xffffffff /* Max value of ub16_t */
 
#define b16MIN   0x80000000 /* Min value of b16_t */
 
#define ub16MIN   0x00000000 /* Min value of ub16_t */
 
#define b32MILLION   0x000f424000000000 /* 1000000 */
 
#define b32THOUSAND   0x000003e800000000 /* 1000 */
 
#define b32HUNDRED   0x0000006400000000 /* 100 */
 
#define b32TEN   0x0000000a00000000 /* 10 */
 
#define b32ONE   0x0000000100000000 /* 1 */
 
#define b32HALF   0x0000000080000000 /* 0.5 */
 
#define b32ONETENTH   0x000000001999999a /* 0.1 */
 
#define b32ONEHUNDRTH   0x00000000028f5c29 /* 0.01 */
 
#define b32ONETHOUSTH   0x0000000000418937 /* 0.001 */
 
#define b32ONETENTHOU   0x0000000000068db9 /* 0.0001 */
 
#define b32HALFPI   0x00000001921eb9ff /* 1.57078134990 */
 
#define b32PI   0x00000003243f6b4f /* 3.14159269980 */
 
#define b32TWOPI   0x00000006487ae7fd /* 6.28312539984 */
 
#define b32MAX   0x7fffffffffffffff /* Max value of b16_t */
 
#define ub32MAX   0xffffffffffffffff /* Max value of ub16_t */
 
#define b32MIN   0x8000000000000000 /* Min value of b16_t */
 
#define ub32MIN   0x0000000000000000 /* Min value of ub16_t */
 
#define b8tob16(b)   (((b16_t)(b)) << 8)
 
#define ub8toub16(b)   (((ub16_t)(b)) << 8)
 
#define b16tob8(b)   (b8_t)(((b)+0x0080)>>8)
 
#define ub16toub8(b)   (ub8_t)(((b)+0x0080)>>8)
 
#define b8tob32(b)   (((b32_t)(b)) << 24)
 
#define ub8toub32(b)   (((ub32_t)(b)) << 24)
 
#define b16tob32(b)   (((b32_t)(b)) << 16)
 
#define ub16toub32(b)   (((ub32_t)(b)) << 16)
 
#define b32tob16(b)   (b16_t)(((b) + 0x0000000000008000)>>16)
 
#define ub32toub16(b)   (ub16_t)(((b) + 0x0000000000008000)>>16)
 
#define b32tob8(b)   (b8_t)(((b) + 0x0000000000000080)>>8)
 
#define b8toi(a)   ((a) >> 8) /* Conversion to integer */
 
#define itob8(i)   (((b8_t)(i)) << 8) /* Conversion from integer */
 
#define uitoub8(i)   (((ub8_t)(i)) << 8) /* Conversion from unsigned integer */
 
#define b8tof(b)   (((float)b)/256.0) /* Conversion to float */
 
#define ftob8(f)   (b8_t)(((f)*256.0)) /* Conversion from float */
 
#define b8trunc(a)   ((a) & 0xff00) /* Truncate to integer b8 */
 
#define b8round(a)   (((a)+0x0080) & 0xff00) /* Round to integer b8 */
 
#define b8frac(a)   ((a) & 0x00ff) /* Take fractional part */
 
#define ub8inv(b)   (0x8000/((b)>>1)) /* Inversion (b8=b15/b7) */
 
#define b8inv(b)   (0x4000/((b)>>2)) /* Inversion (b8=b14/b6) */
 
#define b8addb8(a, b)   ((a)+(b)) /* Addition */
 
#define b8addi(a, i)   ((a)+itob8(i)) /* Add integer from b16 */
 
#define b8subb8(a, b)   ((a)-(b)) /* Subtraction */
 
#define b8subi(a, i)   ((a)-itob8(i)) /* Subtract integer from b8 */
 
#define b8mulb8(a, b)   b16tob8((b16_t)(a)*(b16_t)(b) /* Muliplication */
 
#define ub8mulub8(a, b)   ub16toub8((ub16_t)(a)*(ub16_t)(b) /* Muliplication */
 
#define b8muli(a, i)   ((a)*(i)) /* Simple multiplication by integer */
 
#define b8sqr(a)   b8mulb8(a, a) /* Square */
 
#define ub8sqr(a)   ub8mulub8(a, a) /* Square */
 
#define b8divb8(a, b)   b8tob16(a)/(b16_t)(b) /* Division */
 
#define ub8divub8(a, b)   ub8toub16(a)/(ub16_t)(b) /* Division */
 
#define b8divi(a, i)   ((a)/(i)) /* Simple division by integer */
 
#define b8idiv(i, j)   (((i)<<8)/j) /* Division of integer, b8 result */
 
#define b16toi(a)   ((a) >> 16) /* Conversion to integer */
 
#define itob16(i)   (((b16_t)(i)) << 16) /* Conversion from integer */
 
#define uitoub16(i)   (((ub16_t)(i)) << 16) /* Conversion from unsigned integer */
 
#define b16tof(b)   (((float)b)/65536.0) /* Conversion to float */
 
#define ftob16(f)   (b16_t)(((f)*65536.0)) /* Conversion from float */
 
#define b16trunc(a)   ((a) & 0xffff0000) /* Truncate to integer */
 
#define b16round(a)   (((a)+0x00008000) & 0xffff0000)
 
#define b16frac(a)   ((a) & 0x0000ffff) /* Take fractional part */
 
#define ub16inv(b)   (0x80000000/((b)>>1)) /* Inversion (b16=b31/b15) */
 
#define b16inv(b)   (0x40000000/((b)>>2)) /* Inversion (b16=b30/b14) */
 
#define b16addb16(a, b)   ((a)+(b)) /* Addition */
 
#define b16addi(a, i)   ((a)+itob16(i)) /* Add integer to b16 */
 
#define b16subb16(a, b)   ((a)-(b)) /* Subtraction */
 
#define b16subi(a, i)   ((a)-itob16(i)) /* Subtract integer from b16 */
 
#define b16muli(a, i)   ((a)*(i)) /* Simple multiplication by integer */
 
#define b16divi(a, i)   ((a)/(i)) /* Simple division by integer */
 
#define b16idiv(i, j)   (((i)<<16)/j) /* Division of integer, b16 result */
 
#define b16mulb16(a, b)   b32tob16((b32_t)(a)*(b32_t)(b))
 
#define ub16mulub16(a, b)   ub32toub16((ub32_t)(a)*(ub32_t)(b))
 
#define b16sqr(a)   b16mulb16(a, a)
 
#define ub16sqr(a)   ub16mulub16(a, a)
 
#define b16divb16(a, b)   (b16_t)(b16tob32(a)/(b32_t)(b))
 
#define ub16divub16(a, b)   (ub16_t)(ub16toub32(a)/(ub32_t)(b))
 
#define EXTERN   extern
 

Typedefs

typedef int16_t b8_t
 
typedef uint16_t ub8_t
 
typedef int32_t b16_t
 
typedef uint32_t ub16_t
 
typedef int64_t b32_t
 
typedef uint64_t ub32_t
 

Functions

b16_t b16sin (b16_t rad)
 Trigonometric sine operation. More...
 
b16_t b16cos (b16_t rad)
 Trigonometric cosine operation. More...
 
b16_t b16atan2 (b16_t y, b16_t x)
 Trigonometric tangent operation. More...