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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 SPXSRSXn(rs) \
50 (xe += rs, \
51 xm = (rs > (SP_FBITS+3))?1:((xm) >> (rs)) | ((xm) << (32-(rs)) != 0))
52
53#define SPXSRSX1() \
54 (xe++, (xm = (xm >> 1) | (xm & 1)))
55
56#define SPXSRSYn(rs) \
57 (ye+=rs, \
58 ym = (rs > (SP_FBITS+3))?1:((ym) >> (rs)) | ((ym) << (32-(rs)) != 0))
59
60#define SPXSRSY1() \
61 (ye++, (ym = (ym >> 1) | (ym & 1)))
62
63
64#define SPDNORMx(m,e) \
65 while ((m >> SP_FBITS) == 0) { m <<= 1; e--; }
66#define SPDNORMX SPDNORMx(xm, xe)
67#define SPDNORMY SPDNORMx(ym, ye)
68
69static inline union ieee754sp buildsp(int s, int bx, unsigned m)
70{
71 union ieee754sp r;
72
73 assert((s) == 0 || (s) == 1);
74 assert((bx) >= SP_EMIN - 1 + SP_EBIAS
75 && (bx) <= SP_EMAX + 1 + SP_EBIAS);
76 assert(((m) >> SP_FBITS) == 0);
77
78 r.sign = s;
79 r.bexp = bx;
80 r.mant = m;
81
82 return r;
83}
84
85extern union ieee754sp __cold ieee754sp_nanxcpt(union ieee754sp);
86extern union ieee754sp ieee754sp_format(int, int, unsigned);
87