op-8.h File Reference

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Macros
#define	_FP_FRAC_DECL_8(X)   _FP_W_TYPE X##_f[8]
#define	_FP_FRAC_HIGH_8(X)   (X##_f[7])
#define	_FP_FRAC_LOW_8(X)   (X##_f[0])
#define	_FP_FRAC_WORD_8(X, w)   (X##_f[w])
#define	_FP_FRAC_SLL_8(X, N)
#define	_FP_FRAC_SRL_8(X, N)
#define	_FP_FRAC_SRS_8(X, N, size)

Macro Definition Documentation

#define _FP_FRAC_DECL_8

(

X

)

_FP_W_TYPE X##_f[8]

Definition at line 29 of file op-8.h.

#define _FP_FRAC_HIGH_8

(

X

)

(X##_f[7])

Definition at line 30 of file op-8.h.

#define _FP_FRAC_LOW_8

(

X

)

(X##_f[0])

Definition at line 31 of file op-8.h.

#define _FP_FRAC_SLL_8	(		X,
			N
	)

Value:

do {                                    \
    _FP_I_TYPE _up, _down, _skip, _i;                   \
    _skip = (N) / _FP_W_TYPE_SIZE;                  \
    _up = (N) % _FP_W_TYPE_SIZE;                    \
    _down = _FP_W_TYPE_SIZE - _up;                  \
    if (!_up)                               \
      for (_i = 7; _i >= _skip; --_i)                   \
    X##_f[_i] = X##_f[_i-_skip];                    \
    else                                \
      {                                 \
    for (_i = 7; _i > _skip; --_i)                  \
      X##_f[_i] = X##_f[_i-_skip] << _up                \
              | X##_f[_i-_skip-1] >> _down;         \
    X##_f[_i--] = X##_f[0] << _up;                  \
      }                                 \
    for (; _i >= 0; --_i)                       \
      X##_f[_i] = 0;                            \
  } while (0)

Definition at line 34 of file op-8.h.

#define _FP_FRAC_SRL_8	(		X,
			N
	)

Value:

do {                                    \
    _FP_I_TYPE _up, _down, _skip, _i;                   \
    _skip = (N) / _FP_W_TYPE_SIZE;                  \
    _down = (N) % _FP_W_TYPE_SIZE;                  \
    _up = _FP_W_TYPE_SIZE - _down;                  \
    if (!_down)                             \
      for (_i = 0; _i <= 7-_skip; ++_i)                 \
    X##_f[_i] = X##_f[_i+_skip];                    \
    else                                \
      {                                 \
    for (_i = 0; _i < 7-_skip; ++_i)                \
      X##_f[_i] = X##_f[_i+_skip] >> _down              \
              | X##_f[_i+_skip+1] << _up;           \
    X##_f[_i++] = X##_f[7] >> _down;                \
      }                                 \
    for (; _i < 8; ++_i)                        \
      X##_f[_i] = 0;                            \
  } while (0)

Definition at line 54 of file op-8.h.

#define _FP_FRAC_SRS_8	(		X,
			N,
			size
	)

Value:

do {                                    \
    _FP_I_TYPE _up, _down, _skip, _i;                   \
    _FP_W_TYPE _s;                          \
    _skip = (N) / _FP_W_TYPE_SIZE;                  \
    _down = (N) % _FP_W_TYPE_SIZE;                  \
    _up = _FP_W_TYPE_SIZE - _down;                  \
    for (_s = _i = 0; _i < _skip; ++_i)                 \
      _s |= X##_f[_i];                          \
    _s |= X##_f[_i] << _up;                     \
/* s is now != 0 if we want to set the LSbit */             \
    if (!_down)                             \
      for (_i = 0; _i <= 7-_skip; ++_i)                 \
    X##_f[_i] = X##_f[_i+_skip];                    \
    else                                \
      {                                 \
    for (_i = 0; _i < 7-_skip; ++_i)                \
      X##_f[_i] = X##_f[_i+_skip] >> _down              \
              | X##_f[_i+_skip+1] << _up;           \
    X##_f[_i++] = X##_f[7] >> _down;                \
      }                                 \
    for (; _i < 8; ++_i)                        \
      X##_f[_i] = 0;                            \
    /* don't fix the LSB until the very end when we're sure f[0] is stable */   \
    X##_f[0] |= (_s != 0);                      \
  } while (0)

Definition at line 80 of file op-8.h.

#define _FP_FRAC_WORD_8	(		X,
			w
	)		(X##_f[w])

Definition at line 32 of file op-8.h.