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fixedmath: add abs and sign operations

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raiden00pl 2023-10-07 11:43:20 +02:00 committed by Xiang Xiao
parent a3d7abb1ae
commit ec5793db59
1 changed files with 6 additions and 0 deletions
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6
include/fixedmath.h
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@ -133,6 +133,8 @@
#define ub8divub8(a,b) (ub8toub16(a)/(ub16_t)(b)) /* Division */ #define ub8divub8(a,b) (ub8toub16(a)/(ub16_t)(b)) /* Division */
#define b8divi(a,i) ((a)/(i)) /* Simple division by integer */ #define b8divi(a,i) ((a)/(i)) /* Simple division by integer */
#define b8idiv(i,j) (((i)<<8)/j) /* Division of integer, b8 result */ #define b8idiv(i,j) (((i)<<8)/j) /* Division of integer, b8 result */
#define b8abs(b) ((b < 0) ? (-b) : (b)) /* Get the absolute value */
#define b8sign(b) ((b > 0) ? (b8ONE) : (-b8ONE)) /* Get the sign */
/* 32-bit values with 16 bits of precision **********************************/ /* 32-bit values with 16 bits of precision **********************************/
@ -161,6 +163,8 @@
#define b16muli(a,i) ((a)*(i)) /* Simple multiplication by integer */ #define b16muli(a,i) ((a)*(i)) /* Simple multiplication by integer */
#define b16divi(a,i) ((a)/(i)) /* Simple division 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 b16idiv(i,j) (((i)<<16)/j) /* Division of integer, b16 result */
#define b16abs(b) ((b < 0) ? (-b) : (b)) /* Get the absolute value */
#define b16sign(b) ((b > 0) ? (b16ONE) : (-b16ONE))
#ifdef CONFIG_HAVE_LONG_LONG #ifdef CONFIG_HAVE_LONG_LONG
/* Multiplication operators */ /* Multiplication operators */
@ -198,6 +202,8 @@
#define b32trunc(a) ((a) & 0xffffffff00000000) /* Truncate to integer */ #define b32trunc(a) ((a) & 0xffffffff00000000) /* Truncate to integer */
#define b32round(a) (((a)+0x0000000080000000) & 0xffffffff00000000) #define b32round(a) (((a)+0x0000000080000000) & 0xffffffff00000000)
#define b32frac(a) ((a) & 0x00000000ffffffff) /* Take fractional part */ #define b32frac(a) ((a) & 0x00000000ffffffff) /* Take fractional part */
#define b32abs(b) ((b < 0) ? (-b) : (b)) /* Get the absolute value */
#define b32sign(b) ((b > 0) ? (b32ONE) : (-b32ONE))
#endif #endif
/**************************************************************************** /****************************************************************************