fixed.h File Reference

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Macros
#define	mad_fixed64_t   signed long long
#define	MAD_F_FRACBITS   28
#define	MAD_F(x)
#define	MAD_F_MIN   ((mad_fixed_t) -0x80000000L)
#define	MAD_F_MAX   ((mad_fixed_t) +0x7fffffffL)
#define	MAD_F_ONE   MAD_F(0x10000000)
#define	mad_f_tofixed(x)
#define	mad_f_todouble(x)
#define	mad_f_intpart(x)
#define	mad_f_fracpart(x)
#define	mad_f_fromint(x)
#define	mad_f_add(x, y)
#define	mad_f_sub(x, y)
#define	mad_f_mul(x, y)
#define	MAD_F_ML0(hi, lo, x, y)
#define	MAD_F_MLA(hi, lo, x, y)
#define	MAD_F_MLN(hi, lo)
#define	MAD_F_MLZ(hi, lo)
#define	mad_f_scale64(hi, lo)
#define	MAD_F_SCALEBITS   MAD_F_FRACBITS

Typedefs
typedef signed long	mad_fixed_t
typedef signed long	mad_fixed64hi_t
typedef unsigned long	mad_fixed64lo_t

Functions
mad_fixed_t	mad_f_abs (mad_fixed_t)
mad_fixed_t	mad_f_div (mad_fixed_t, mad_fixed_t)

Macro Definition Documentation

MAD_F

#define MAD_F

(

x

)

Value:

((mad_fixed_t) (x##L))

Definition at line 79 of file fixed.h.

mad_f_add

#define mad_f_add	(		x,
			y )

Value:

((x) + (y))

Definition at line 110 of file fixed.h.

MAD_F_FRACBITS

#define MAD_F_FRACBITS   28

Definition at line 76 of file fixed.h.

mad_f_fracpart

#define mad_f_fracpart

(

x

)

Value:

((x) & ((1L << MAD_F_FRACBITS) - 1))

Definition at line 105 of file fixed.h.

mad_f_fromint

#define mad_f_fromint

(

x

)

Value:

((x) << MAD_F_FRACBITS)

Definition at line 108 of file fixed.h.

mad_f_intpart

#define mad_f_intpart

(

x

)

Value:

((x) >> MAD_F_FRACBITS)

Definition at line 104 of file fixed.h.

MAD_F_MAX

#define MAD_F_MAX   ((mad_fixed_t) +0x7fffffffL)

Definition at line 95 of file fixed.h.

MAD_F_MIN

#define MAD_F_MIN   ((mad_fixed_t) -0x80000000L)

Definition at line 94 of file fixed.h.

MAD_F_ML0

#define MAD_F_ML0	(		hi,
			lo,
			x,
			y )

Value:

((lo)  = mad_f_mul((x), (y)))

Definition at line 465 of file fixed.h.

MAD_F_MLA

#define MAD_F_MLA	(		hi,
			lo,
			x,
			y )

Value:

((lo) += mad_f_mul((x), (y)))

Definition at line 466 of file fixed.h.

MAD_F_MLN

#define MAD_F_MLN	(		hi,
			lo )

Value:

((lo)  = -(lo))

Definition at line 467 of file fixed.h.

MAD_F_MLZ

#define MAD_F_MLZ	(		hi,
			lo )

Value:

((void) (hi), (mad_fixed_t) (lo))

Definition at line 468 of file fixed.h.

mad_f_mul

#define mad_f_mul	(		x,
			y )

Value:

({ register mad_fixed64hi_t __hi;  \
   register mad_fixed64lo_t __lo;  \
   MAD_F_MLX(__hi, __lo, (x), (y));  \
   mad_f_scale64(__hi, __lo);  \
})

Definition at line 456 of file fixed.h.

MAD_F_ONE

#define MAD_F_ONE   MAD_F(0x10000000)

Definition at line 97 of file fixed.h.

mad_f_scale64

#define mad_f_scale64	(		hi,
			lo )

Value:

((mad_fixed_t)  \
 (((hi) << (32 - MAD_F_SCALEBITS)) |  \
  ((lo) >> MAD_F_SCALEBITS)))

Definition at line 490 of file fixed.h.

MAD_F_SCALEBITS

#define MAD_F_SCALEBITS   MAD_F_FRACBITS

Definition at line 495 of file fixed.h.

mad_f_sub

#define mad_f_sub	(		x,
			y )

Value:

((x) - (y))

Definition at line 111 of file fixed.h.

mad_f_todouble

#define mad_f_todouble

(

x

)

Value:

((double)  \
((x) / (double) (1L << MAD_F_FRACBITS)))

Definition at line 101 of file fixed.h.

mad_f_tofixed

#define mad_f_tofixed

(

x

)

Value:

((mad_fixed_t)  \
((x) * (double) (1L << MAD_F_FRACBITS) + 0.5))

Definition at line 99 of file fixed.h.

mad_fixed64_t

#define mad_fixed64_t   signed long long

Definition at line 44 of file fixed.h.

Typedef Documentation

mad_fixed64hi_t

typedef signed long mad_fixed64hi_t

Definition at line 37 of file fixed.h.

mad_fixed64lo_t

typedef unsigned long mad_fixed64lo_t

Definition at line 38 of file fixed.h.

mad_fixed_t

typedef signed long mad_fixed_t

Definition at line 35 of file fixed.h.

Function Documentation

mad_f_abs()

mad_fixed_t mad_f_abs

(

mad_fixed_t

x

)

Definition at line 34 of file fixed.c.

mad_f_div()

mad_fixed_t mad_f_div	(	mad_fixed_t	x,
		mad_fixed_t	y )

Definition at line 43 of file fixed.c.