Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * Definitions for IEEE Single Precision | |
3 | */ | |
4 | ||
5 | #if _FP_W_TYPE_SIZE < 32 | |
6 | #error "Here's a nickel kid. Go buy yourself a real computer." | |
7 | #endif | |
8 | ||
9 | #define _FP_FRACBITS_S 24 | |
10 | #define _FP_FRACXBITS_S (_FP_W_TYPE_SIZE - _FP_FRACBITS_S) | |
11 | #define _FP_WFRACBITS_S (_FP_WORKBITS + _FP_FRACBITS_S) | |
12 | #define _FP_WFRACXBITS_S (_FP_W_TYPE_SIZE - _FP_WFRACBITS_S) | |
13 | #define _FP_EXPBITS_S 8 | |
14 | #define _FP_EXPBIAS_S 127 | |
15 | #define _FP_EXPMAX_S 255 | |
16 | #define _FP_QNANBIT_S ((_FP_W_TYPE)1 << (_FP_FRACBITS_S-2)) | |
17 | #define _FP_IMPLBIT_S ((_FP_W_TYPE)1 << (_FP_FRACBITS_S-1)) | |
18 | #define _FP_OVERFLOW_S ((_FP_W_TYPE)1 << (_FP_WFRACBITS_S)) | |
19 | ||
20 | /* The implementation of _FP_MUL_MEAT_S and _FP_DIV_MEAT_S should be | |
21 | chosen by the target machine. */ | |
22 | ||
23 | union _FP_UNION_S | |
24 | { | |
25 | float flt; | |
26 | struct { | |
27 | #if __BYTE_ORDER == __BIG_ENDIAN | |
28 | unsigned sign : 1; | |
29 | unsigned exp : _FP_EXPBITS_S; | |
30 | unsigned frac : _FP_FRACBITS_S - (_FP_IMPLBIT_S != 0); | |
31 | #else | |
32 | unsigned frac : _FP_FRACBITS_S - (_FP_IMPLBIT_S != 0); | |
33 | unsigned exp : _FP_EXPBITS_S; | |
34 | unsigned sign : 1; | |
35 | #endif | |
36 | } bits __attribute__((packed)); | |
37 | }; | |
38 | ||
39 | #define FP_DECL_S(X) _FP_DECL(1,X) | |
40 | #define FP_UNPACK_RAW_S(X,val) _FP_UNPACK_RAW_1(S,X,val) | |
41 | #define FP_PACK_RAW_S(val,X) _FP_PACK_RAW_1(S,val,X) | |
42 | ||
43 | #define FP_UNPACK_S(X,val) \ | |
44 | do { \ | |
45 | _FP_UNPACK_RAW_1(S,X,val); \ | |
46 | _FP_UNPACK_CANONICAL(S,1,X); \ | |
47 | } while (0) | |
48 | ||
49 | #define FP_PACK_S(val,X) \ | |
50 | do { \ | |
51 | _FP_PACK_CANONICAL(S,1,X); \ | |
52 | _FP_PACK_RAW_1(S,val,X); \ | |
53 | } while (0) | |
54 | ||
55 | #define FP_NEG_S(R,X) _FP_NEG(S,1,R,X) | |
56 | #define FP_ADD_S(R,X,Y) _FP_ADD(S,1,R,X,Y) | |
57 | #define FP_SUB_S(R,X,Y) _FP_SUB(S,1,R,X,Y) | |
58 | #define FP_MUL_S(R,X,Y) _FP_MUL(S,1,R,X,Y) | |
59 | #define FP_DIV_S(R,X,Y) _FP_DIV(S,1,R,X,Y) | |
60 | #define FP_SQRT_S(R,X) _FP_SQRT(S,1,R,X) | |
61 | ||
62 | #define FP_CMP_S(r,X,Y,un) _FP_CMP(S,1,r,X,Y,un) | |
63 | #define FP_CMP_EQ_S(r,X,Y) _FP_CMP_EQ(S,1,r,X,Y) | |
64 | ||
65 | #define FP_TO_INT_S(r,X,rsz,rsg) _FP_TO_INT(S,1,r,X,rsz,rsg) | |
66 | #define FP_FROM_INT_S(X,r,rs,rt) _FP_FROM_INT(S,1,X,r,rs,rt) |