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23#include <linux/compiler.h>
24
25#include "ieee754int.h"
26
27#define assert(expr) ((void)0)
28
29#define SP_EBIAS 127
30#define SP_EMIN (-126)
31#define SP_EMAX 127
32#define SP_FBITS 23
33#define SP_MBITS 23
34
35#define SP_MBIT(x) ((u32)1 << (x))
36#define SP_HIDDEN_BIT SP_MBIT(SP_FBITS)
37#define SP_SIGN_BIT SP_MBIT(31)
38
39#define SPSIGN(sp) (sp.sign)
40#define SPBEXP(sp) (sp.bexp)
41#define SPMANT(sp) (sp.mant)
42
43static inline int ieee754sp_finite(union ieee754sp x)
44{
45 return SPBEXP(x) != SP_EMAX + 1 + SP_EBIAS;
46}
47
48
49#define XSPSRS(v, rs) \
50 ((rs > (SP_FBITS+3))?1:((v) >> (rs)) | ((v) << (32-(rs)) != 0))
51
52#define XSPSRS1(m) \
53 ((m >> 1) | (m & 1))
54
55#define SPXSRSX1() \
56 (xe++, (xm = XSPSRS1(xm)))
57
58#define SPXSRSY1() \
59 (ye++, (ym = XSPSRS1(ym)))
60
61
62#define SPDNORMx(m,e) \
63 while ((m >> SP_FBITS) == 0) { m <<= 1; e--; }
64#define SPDNORMX SPDNORMx(xm, xe)
65#define SPDNORMY SPDNORMx(ym, ye)
66#define SPDNORMZ SPDNORMx(zm, ze)
67
68static inline union ieee754sp buildsp(int s, int bx, unsigned m)
69{
70 union ieee754sp r;
71
72 assert((s) == 0 || (s) == 1);
73 assert((bx) >= SP_EMIN - 1 + SP_EBIAS
74 && (bx) <= SP_EMAX + 1 + SP_EBIAS);
75 assert(((m) >> SP_FBITS) == 0);
76
77 r.sign = s;
78 r.bexp = bx;
79 r.mant = m;
80
81 return r;
82}
83
84extern union ieee754sp __cold ieee754sp_nanxcpt(union ieee754sp);
85extern union ieee754sp ieee754sp_format(int, int, unsigned);
86