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1da177e4 LT |
1 | /* |
2 | ------------------------------------------------------------------------------- | |
3 | The macro `BITS64' can be defined to indicate that 64-bit integer types are | |
4 | supported by the compiler. | |
5 | ------------------------------------------------------------------------------- | |
6 | */ | |
7 | #define BITS64 | |
8 | ||
9 | /* | |
10 | ------------------------------------------------------------------------------- | |
11 | Each of the following `typedef's defines the most convenient type that holds | |
12 | integers of at least as many bits as specified. For example, `uint8' should | |
13 | be the most convenient type that can hold unsigned integers of as many as | |
14 | 8 bits. The `flag' type must be able to hold either a 0 or 1. For most | |
15 | implementations of C, `flag', `uint8', and `int8' should all be `typedef'ed | |
16 | to the same as `int'. | |
17 | ------------------------------------------------------------------------------- | |
18 | */ | |
19 | typedef char flag; | |
20 | typedef unsigned char uint8; | |
21 | typedef signed char int8; | |
22 | typedef int uint16; | |
23 | typedef int int16; | |
24 | typedef unsigned int uint32; | |
25 | typedef signed int int32; | |
26 | #ifdef BITS64 | |
27 | typedef unsigned long long int bits64; | |
28 | typedef signed long long int sbits64; | |
29 | #endif | |
30 | ||
31 | /* | |
32 | ------------------------------------------------------------------------------- | |
33 | Each of the following `typedef's defines a type that holds integers | |
34 | of _exactly_ the number of bits specified. For instance, for most | |
35 | implementation of C, `bits16' and `sbits16' should be `typedef'ed to | |
36 | `unsigned short int' and `signed short int' (or `short int'), respectively. | |
37 | ------------------------------------------------------------------------------- | |
38 | */ | |
39 | typedef unsigned char bits8; | |
40 | typedef signed char sbits8; | |
41 | typedef unsigned short int bits16; | |
42 | typedef signed short int sbits16; | |
43 | typedef unsigned int bits32; | |
44 | typedef signed int sbits32; | |
45 | #ifdef BITS64 | |
46 | typedef unsigned long long int uint64; | |
47 | typedef signed long long int int64; | |
48 | #endif | |
49 | ||
50 | #ifdef BITS64 | |
51 | /* | |
52 | ------------------------------------------------------------------------------- | |
53 | The `LIT64' macro takes as its argument a textual integer literal and if | |
54 | necessary ``marks'' the literal as having a 64-bit integer type. For | |
55 | example, the Gnu C Compiler (`gcc') requires that 64-bit literals be | |
56 | appended with the letters `LL' standing for `long long', which is `gcc's | |
57 | name for the 64-bit integer type. Some compilers may allow `LIT64' to be | |
58 | defined as the identity macro: `#define LIT64( a ) a'. | |
59 | ------------------------------------------------------------------------------- | |
60 | */ | |
61 | #define LIT64( a ) a##LL | |
62 | #endif | |
63 | ||
64 | /* | |
65 | ------------------------------------------------------------------------------- | |
66 | The macro `INLINE' can be used before functions that should be inlined. If | |
67 | a compiler does not support explicit inlining, this macro should be defined | |
68 | to be `static'. | |
69 | ------------------------------------------------------------------------------- | |
70 | */ | |
71 | #define INLINE extern __inline__ | |
72 | ||
73 | ||
74 | /* For use as a GCC soft-float library we need some special function names. */ | |
75 | ||
76 | #ifdef __LIBFLOAT__ | |
77 | ||
78 | /* Some 32-bit ops can be mapped straight across by just changing the name. */ | |
79 | #define float32_add __addsf3 | |
80 | #define float32_sub __subsf3 | |
81 | #define float32_mul __mulsf3 | |
82 | #define float32_div __divsf3 | |
83 | #define int32_to_float32 __floatsisf | |
84 | #define float32_to_int32_round_to_zero __fixsfsi | |
85 | #define float32_to_uint32_round_to_zero __fixunssfsi | |
86 | ||
87 | /* These ones go through the glue code. To avoid namespace pollution | |
88 | we rename the internal functions too. */ | |
89 | #define float32_eq ___float32_eq | |
90 | #define float32_le ___float32_le | |
91 | #define float32_lt ___float32_lt | |
92 | ||
93 | /* All the 64-bit ops have to go through the glue, so we pull the same | |
94 | trick. */ | |
95 | #define float64_add ___float64_add | |
96 | #define float64_sub ___float64_sub | |
97 | #define float64_mul ___float64_mul | |
98 | #define float64_div ___float64_div | |
99 | #define int32_to_float64 ___int32_to_float64 | |
100 | #define float64_to_int32_round_to_zero ___float64_to_int32_round_to_zero | |
101 | #define float64_to_uint32_round_to_zero ___float64_to_uint32_round_to_zero | |
102 | #define float64_to_float32 ___float64_to_float32 | |
103 | #define float32_to_float64 ___float32_to_float64 | |
104 | #define float64_eq ___float64_eq | |
105 | #define float64_le ___float64_le | |
106 | #define float64_lt ___float64_lt | |
107 | ||
108 | #if 0 | |
109 | #define float64_add __adddf3 | |
110 | #define float64_sub __subdf3 | |
111 | #define float64_mul __muldf3 | |
112 | #define float64_div __divdf3 | |
113 | #define int32_to_float64 __floatsidf | |
114 | #define float64_to_int32_round_to_zero __fixdfsi | |
115 | #define float64_to_uint32_round_to_zero __fixunsdfsi | |
116 | #define float64_to_float32 __truncdfsf2 | |
117 | #define float32_to_float64 __extendsfdf2 | |
118 | #endif | |
119 | ||
120 | #endif |