diff options
Diffstat (limited to 'arch/powerpc/math-emu/single.h')
-rw-r--r-- | arch/powerpc/math-emu/single.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/arch/powerpc/math-emu/single.h b/arch/powerpc/math-emu/single.h new file mode 100644 index 000000000000..f19d99451815 --- /dev/null +++ b/arch/powerpc/math-emu/single.h | |||
@@ -0,0 +1,66 @@ | |||
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) | ||