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op-1.h File Reference

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Macros

#define _FP_FRAC_DECL_1(X)   _FP_W_TYPE X##_f=0
 
#define _FP_FRAC_COPY_1(D, S)   (D##_f = S##_f)
 
#define _FP_FRAC_SET_1(X, I)   (X##_f = I)
 
#define _FP_FRAC_HIGH_1(X)   (X##_f)
 
#define _FP_FRAC_LOW_1(X)   (X##_f)
 
#define _FP_FRAC_WORD_1(X, w)   (X##_f)
 
#define _FP_FRAC_ADDI_1(X, I)   (X##_f += I)
 
#define _FP_FRAC_SLL_1(X, N)
 
#define _FP_FRAC_SRL_1(X, N)   (X##_f >>= N)
 
#define _FP_FRAC_SRS_1(X, N, sz)   __FP_FRAC_SRS_1(X##_f, N, sz)
 
#define __FP_FRAC_SRS_1(X, N, sz)
 
#define _FP_FRAC_ADD_1(R, X, Y)   (R##_f = X##_f + Y##_f)
 
#define _FP_FRAC_SUB_1(R, X, Y)   (R##_f = X##_f - Y##_f)
 
#define _FP_FRAC_DEC_1(X, Y)   (X##_f -= Y##_f)
 
#define _FP_FRAC_CLZ_1(z, X)   __FP_CLZ(z, X##_f)
 
#define _FP_FRAC_NEGP_1(X)   ((_FP_WS_TYPE)X##_f < 0)
 
#define _FP_FRAC_ZEROP_1(X)   (X##_f == 0)
 
#define _FP_FRAC_OVERP_1(fs, X)   (X##_f & _FP_OVERFLOW_##fs)
 
#define _FP_FRAC_CLEAR_OVERP_1(fs, X)   (X##_f &= ~_FP_OVERFLOW_##fs)
 
#define _FP_FRAC_EQ_1(X, Y)   (X##_f == Y##_f)
 
#define _FP_FRAC_GE_1(X, Y)   (X##_f >= Y##_f)
 
#define _FP_FRAC_GT_1(X, Y)   (X##_f > Y##_f)
 
#define _FP_ZEROFRAC_1   0
 
#define _FP_MINFRAC_1   1
 
#define _FP_MAXFRAC_1   (~(_FP_WS_TYPE)0)
 
#define _FP_UNPACK_RAW_1(fs, X, val)
 
#define _FP_UNPACK_RAW_1_P(fs, X, val)
 
#define _FP_PACK_RAW_1(fs, val, X)
 
#define _FP_PACK_RAW_1_P(fs, val, X)
 
#define _FP_MUL_MEAT_1_imm(wfracbits, R, X, Y)
 
#define _FP_MUL_MEAT_1_wide(wfracbits, R, X, Y, doit)
 
#define _FP_MUL_MEAT_1_hard(wfracbits, R, X, Y)
 
#define _FP_DIV_MEAT_1_imm(fs, R, X, Y, doit)
 
#define _FP_DIV_MEAT_1_udiv_norm(fs, R, X, Y)
 
#define _FP_DIV_MEAT_1_udiv(fs, R, X, Y)
 
#define _FP_SQRT_MEAT_1(R, S, T, X, q)
 
#define _FP_FRAC_ASSEMBLE_1(r, X, rsize)   (r = X##_f)
 
#define _FP_FRAC_DISASSEMBLE_1(X, r, rsize)   (X##_f = r)
 
#define _FP_FRAC_CONV_1_1(dfs, sfs, D, S)
 

Macro Definition Documentation

#define __FP_FRAC_SRS_1 (   X,
  N,
  sz 
)
Value:
(X = (X >> (N) | (__builtin_constant_p(N) && (N) == 1 \
? X & 1 : (X << (_FP_W_TYPE_SIZE - (N))) != 0)))

Definition at line 48 of file op-1.h.

#define _FP_DIV_MEAT_1_imm (   fs,
  R,
  X,
  Y,
  doit 
)
Value:
do { \
_FP_W_TYPE _q, _r; \
X##_f <<= (X##_f < Y##_f \
? R##_e--, _FP_WFRACBITS_##fs \
: _FP_WFRACBITS_##fs - 1); \
doit(_q, _r, X##_f, Y##_f); \
R##_f = _q | (_r != 0); \
} while (0)

Definition at line 185 of file op-1.h.

#define _FP_DIV_MEAT_1_udiv (   fs,
  R,
  X,
  Y 
)
Value:
do { \
_FP_W_TYPE _nh, _nl, _q, _r; \
if (X##_f < Y##_f) \
{ \
R##_e--; \
_nl = X##_f << _FP_WFRACBITS_##fs; \
_nh = X##_f >> _FP_WFRACXBITS_##fs; \
} \
else \
{ \
_nl = X##_f << (_FP_WFRACBITS_##fs - 1); \
_nh = X##_f >> (_FP_WFRACXBITS_##fs + 1); \
} \
udiv_qrnnd(_q, _r, _nh, _nl, Y##_f); \
R##_f = _q | (_r != 0); \
} while (0)

Definition at line 224 of file op-1.h.

#define _FP_DIV_MEAT_1_udiv_norm (   fs,
  R,
  X,
  Y 
)
Value:
do { \
_FP_W_TYPE _nh, _nl, _q, _r, _y; \
\
/* Normalize Y -- i.e. make the most significant bit set. */ \
_y = Y##_f << _FP_WFRACXBITS_##fs; \
\
/* Shift X op correspondingly high, that is, up one full word. */ \
if (X##_f < Y##_f) \
{ \
R##_e--; \
_nl = 0; \
_nh = X##_f; \
} \
else \
{ \
_nl = X##_f << (_FP_W_TYPE_SIZE - 1); \
_nh = X##_f >> 1; \
} \
\
udiv_qrnnd(_q, _r, _nh, _nl, _y); \
R##_f = _q | (_r != 0); \
} while (0)

Definition at line 200 of file op-1.h.

#define _FP_FRAC_ADD_1 (   R,
  X,
  Y 
)    (R##_f = X##_f + Y##_f)

Definition at line 52 of file op-1.h.

#define _FP_FRAC_ADDI_1 (   X,
  I 
)    (X##_f += I)

Definition at line 35 of file op-1.h.

#define _FP_FRAC_ASSEMBLE_1 (   r,
  X,
  rsize 
)    (r = X##_f)

Definition at line 276 of file op-1.h.

#define _FP_FRAC_CLEAR_OVERP_1 (   fs,
  X 
)    (X##_f &= ~_FP_OVERFLOW_##fs)

Definition at line 61 of file op-1.h.

#define _FP_FRAC_CLZ_1 (   z,
  X 
)    __FP_CLZ(z, X##_f)

Definition at line 55 of file op-1.h.

#define _FP_FRAC_CONV_1_1 (   dfs,
  sfs,
  D,
  S 
)
Value:
do { \
D##_f = S##_f; \
if (_FP_WFRACBITS_##sfs > _FP_WFRACBITS_##dfs) \
{ \
if (S##_c != FP_CLS_NAN) \
_FP_FRAC_SRS_1(D, (_FP_WFRACBITS_##sfs-_FP_WFRACBITS_##dfs), \
_FP_WFRACBITS_##sfs); \
else \
_FP_FRAC_SRL_1(D, (_FP_WFRACBITS_##sfs-_FP_WFRACBITS_##dfs)); \
} \
else \
D##_f <<= _FP_WFRACBITS_##dfs - _FP_WFRACBITS_##sfs; \
} while (0)

Definition at line 284 of file op-1.h.

#define _FP_FRAC_COPY_1 (   D,
  S 
)    (D##_f = S##_f)

Definition at line 29 of file op-1.h.

#define _FP_FRAC_DEC_1 (   X,
  Y 
)    (X##_f -= Y##_f)

Definition at line 54 of file op-1.h.

#define _FP_FRAC_DECL_1 (   X)    _FP_W_TYPE X##_f=0

Definition at line 28 of file op-1.h.

#define _FP_FRAC_DISASSEMBLE_1 (   X,
  r,
  rsize 
)    (X##_f = r)

Definition at line 277 of file op-1.h.

#define _FP_FRAC_EQ_1 (   X,
  Y 
)    (X##_f == Y##_f)

Definition at line 62 of file op-1.h.

#define _FP_FRAC_GE_1 (   X,
  Y 
)    (X##_f >= Y##_f)

Definition at line 63 of file op-1.h.

#define _FP_FRAC_GT_1 (   X,
  Y 
)    (X##_f > Y##_f)

Definition at line 64 of file op-1.h.

#define _FP_FRAC_HIGH_1 (   X)    (X##_f)

Definition at line 31 of file op-1.h.

#define _FP_FRAC_LOW_1 (   X)    (X##_f)

Definition at line 32 of file op-1.h.

#define _FP_FRAC_NEGP_1 (   X)    ((_FP_WS_TYPE)X##_f < 0)

Definition at line 58 of file op-1.h.

#define _FP_FRAC_OVERP_1 (   fs,
  X 
)    (X##_f & _FP_OVERFLOW_##fs)

Definition at line 60 of file op-1.h.

#define _FP_FRAC_SET_1 (   X,
  I 
)    (X##_f = I)

Definition at line 30 of file op-1.h.

#define _FP_FRAC_SLL_1 (   X,
  N 
)
Value:
do { \
if (__builtin_constant_p(N) && (N) == 1) \
X##_f += X##_f; \
else \
X##_f <<= (N); \
} while (0)

Definition at line 36 of file op-1.h.

#define _FP_FRAC_SRL_1 (   X,
  N 
)    (X##_f >>= N)

Definition at line 43 of file op-1.h.

#define _FP_FRAC_SRS_1 (   X,
  N,
  sz 
)    __FP_FRAC_SRS_1(X##_f, N, sz)

Definition at line 46 of file op-1.h.

#define _FP_FRAC_SUB_1 (   R,
  X,
  Y 
)    (R##_f = X##_f - Y##_f)

Definition at line 53 of file op-1.h.

#define _FP_FRAC_WORD_1 (   X,
  w 
)    (X##_f)

Definition at line 33 of file op-1.h.

#define _FP_FRAC_ZEROP_1 (   X)    (X##_f == 0)

Definition at line 59 of file op-1.h.

#define _FP_MAXFRAC_1   (~(_FP_WS_TYPE)0)

Definition at line 68 of file op-1.h.

#define _FP_MINFRAC_1   1

Definition at line 67 of file op-1.h.

#define _FP_MUL_MEAT_1_hard (   wfracbits,
  R,
  X,
  Y 
)
Value:
do { \
_FP_W_TYPE _xh, _xl, _yh, _yl, _z_f0, _z_f1, _a_f0, _a_f1; \
\
/* split the words in half */ \
_xh = X##_f >> (_FP_W_TYPE_SIZE/2); \
_xl = X##_f & (((_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE/2)) - 1); \
_yh = Y##_f >> (_FP_W_TYPE_SIZE/2); \
_yl = Y##_f & (((_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE/2)) - 1); \
\
/* multiply the pieces */ \
_z_f0 = _xl * _yl; \
_a_f0 = _xh * _yl; \
_a_f1 = _xl * _yh; \
_z_f1 = _xh * _yh; \
\
/* reassemble into two full words */ \
if ((_a_f0 += _a_f1) < _a_f1) \
_z_f1 += (_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE/2); \
_a_f1 = _a_f0 >> (_FP_W_TYPE_SIZE/2); \
_a_f0 = _a_f0 << (_FP_W_TYPE_SIZE/2); \
_FP_FRAC_ADD_2(_z, _z, _a); \
\
/* normalize */ \
_FP_FRAC_SRS_2(_z, wfracbits - 1, 2*wfracbits); \
R##_f = _z_f0; \
} while (0)

Definition at line 147 of file op-1.h.

#define _FP_MUL_MEAT_1_imm (   wfracbits,
  R,
  X,
  Y 
)
Value:
do { \
R##_f = X##_f * Y##_f; \
/* Normalize since we know where the msb of the multiplicands \
were (bit B), we know that the msb of the of the product is \
at either 2B or 2B-1. */ \
_FP_FRAC_SRS_1(R, wfracbits-1, 2*wfracbits); \
} while (0)

Definition at line 127 of file op-1.h.

#define _FP_MUL_MEAT_1_wide (   wfracbits,
  R,
  X,
  Y,
  doit 
)
Value:
do { \
_FP_W_TYPE _Z_f0, _Z_f1; \
doit(_Z_f1, _Z_f0, X##_f, Y##_f); \
/* Normalize since we know where the msb of the multiplicands \
were (bit B), we know that the msb of the of the product is \
at either 2B or 2B-1. */ \
_FP_FRAC_SRS_2(_Z, wfracbits-1, 2*wfracbits); \
R##_f = _Z_f0; \
} while (0)

Definition at line 136 of file op-1.h.

#define _FP_PACK_RAW_1 (   fs,
  val,
  X 
)
Value:
do { \
union _FP_UNION_##fs _flo; \
\
_flo.bits.frac = X##_f; \
_flo.bits.exp = X##_e; \
_flo.bits.sign = X##_s; \
\
(val) = _flo.flt; \
} while (0)

Definition at line 98 of file op-1.h.

#define _FP_PACK_RAW_1_P (   fs,
  val,
  X 
)
Value:
do { \
union _FP_UNION_##fs *_flo = \
(union _FP_UNION_##fs *)(val); \
\
_flo->bits.frac = X##_f; \
_flo->bits.exp = X##_e; \
_flo->bits.sign = X##_s; \
} while (0)

Definition at line 109 of file op-1.h.

#define _FP_SQRT_MEAT_1 (   R,
  S,
  T,
  X,
  q 
)
Value:
do { \
while (q != _FP_WORK_ROUND) \
{ \
T##_f = S##_f + q; \
if (T##_f <= X##_f) \
{ \
S##_f = T##_f + q; \
X##_f -= T##_f; \
R##_f += q; \
} \
_FP_FRAC_SLL_1(X, 1); \
q >>= 1; \
} \
if (X##_f) \
{ \
if (S##_f < X##_f) \
R##_f |= _FP_WORK_ROUND; \
R##_f |= _FP_WORK_STICKY; \
} \
} while (0)

Definition at line 249 of file op-1.h.

#define _FP_UNPACK_RAW_1 (   fs,
  X,
  val 
)
Value:
do { \
union _FP_UNION_##fs _flo; _flo.flt = (val); \
\
X##_f = _flo.bits.frac; \
X##_e = _flo.bits.exp; \
X##_s = _flo.bits.sign; \
} while (0)

Definition at line 75 of file op-1.h.

#define _FP_UNPACK_RAW_1_P (   fs,
  X,
  val 
)
Value:
do { \
union _FP_UNION_##fs *_flo = \
(union _FP_UNION_##fs *)(val); \
\
X##_f = _flo->bits.frac; \
X##_e = _flo->bits.exp; \
X##_s = _flo->bits.sign; \
} while (0)

Definition at line 84 of file op-1.h.

#define _FP_ZEROFRAC_1   0

Definition at line 66 of file op-1.h.

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