1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
#define _FP_W_TYPE_SIZE 32
#define _FP_W_TYPE unsigned long
#define _FP_WS_TYPE signed long
#define _FP_I_TYPE long
#define _FP_MUL_MEAT_S(R,X,Y) \
_FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
#define _FP_MUL_MEAT_D(R,X,Y) \
_FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
#define _FP_MUL_MEAT_Q(R,X,Y) \
_FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
#define _FP_MUL_MEAT_DW_S(R,X,Y) \
_FP_MUL_MEAT_DW_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
#define _FP_MUL_MEAT_DW_D(R,X,Y) \
_FP_MUL_MEAT_DW_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
#define _FP_MUL_MEAT_DW_Q(R,X,Y) \
_FP_MUL_MEAT_DW_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_udiv_norm(S,R,X,Y)
#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y)
#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_4_udiv(Q,R,X,Y)
#ifdef __mips_nan2008
# define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1)
# define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1), -1
# define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1
#else
# define _FP_NANFRAC_S (_FP_QNANBIT_S - 1)
# define _FP_NANFRAC_D (_FP_QNANBIT_D - 1), -1
# define _FP_NANFRAC_Q (_FP_QNANBIT_Q - 1), -1, -1, -1
#endif
#define _FP_NANSIGN_S 0
#define _FP_NANSIGN_D 0
#define _FP_NANSIGN_Q 0
#define _FP_KEEPNANFRACP 1
#ifdef __mips_nan2008
# define _FP_QNANNEGATEDP 0
#else
# define _FP_QNANNEGATEDP 1
#endif
#ifdef __mips_nan2008
/* NaN payloads should be preserved for NAN2008. */
# define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \
do \
{ \
R##_s = X##_s; \
_FP_FRAC_COPY_##wc (R, X); \
R##_c = FP_CLS_NAN; \
} \
while (0)
#else
/* From my experiments it seems X is chosen unless one of the
NaNs is sNaN, in which case the result is NANSIGN/NANFRAC. */
# define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \
do { \
if ((_FP_FRAC_HIGH_RAW_##fs(X) \
| _FP_FRAC_HIGH_RAW_##fs(Y)) & _FP_QNANBIT_##fs) \
{ \
R##_s = _FP_NANSIGN_##fs; \
_FP_FRAC_SET_##wc(R,_FP_NANFRAC_##fs); \
} \
else \
{ \
R##_s = X##_s; \
_FP_FRAC_COPY_##wc(R,X); \
} \
R##_c = FP_CLS_NAN; \
} while (0)
#endif
#define FP_EX_INVALID (1 << 4)
#define FP_EX_DIVZERO (1 << 3)
#define FP_EX_OVERFLOW (1 << 2)
#define FP_EX_UNDERFLOW (1 << 1)
#define FP_EX_INEXACT (1 << 0)
#define _FP_TININESS_AFTER_ROUNDING 1
|
GitWeb