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29#include "ieee754int.h"
30
31#define assert(expr) ((void)0)
32
33
34#define XDPSRS(v,rs) \
35 ((rs > (DP_MBITS+3))?1:((v) >> (rs)) | ((v) << (64-(rs)) != 0))
36
37#define XDPSRSX1() \
38 (xe++, (xm = (xm >> 1) | (xm & 1)))
39
40#define XDPSRS1(v) \
41 (((v) >> 1) | ((v) & 1))
42
43
44#define DPDNORMx(m,e) \
45 while( (m >> DP_MBITS) == 0) { m <<= 1; e--; }
46#define DPDNORMX DPDNORMx(xm, xe)
47#define DPDNORMY DPDNORMx(ym, ye)
48
49static __inline ieee754dp builddp(int s, int bx, u64 m)
50{
51 ieee754dp r;
52
53 assert((s) == 0 || (s) == 1);
54 assert((bx) >= DP_EMIN - 1 + DP_EBIAS
55 && (bx) <= DP_EMAX + 1 + DP_EBIAS);
56 assert(((m) >> DP_MBITS) == 0);
57
58 r.parts.sign = s;
59 r.parts.bexp = bx;
60 r.parts.mant = m;
61 return r;
62}
63
64extern int ieee754dp_isnan(ieee754dp);
65extern int ieee754dp_issnan(ieee754dp);
66extern int ieee754si_xcpt(int, const char *, ...);
67extern s64 ieee754di_xcpt(s64, const char *, ...);
68extern ieee754dp ieee754dp_xcpt(ieee754dp, const char *, ...);
69extern ieee754dp ieee754dp_nanxcpt(ieee754dp, const char *, ...);
70extern ieee754dp ieee754dp_bestnan(ieee754dp, ieee754dp);
71extern ieee754dp ieee754dp_format(int, int, u64);
72
73
74#define DPNORMRET2(s, e, m, name, a0, a1) \
75{ \
76 ieee754dp V = ieee754dp_format(s, e, m); \
77 if(TSTX()) \
78 return ieee754dp_xcpt(V, name, a0, a1); \
79 else \
80 return V; \
81}
82
83#define DPNORMRET1(s, e, m, name, a0) DPNORMRET2(s, e, m, name, a0, a0)
84