xref: /minix3/lib/libc/arch/powerpc/softfloat/powerpc-gcc.h (revision 2fe8fb192fe7e8720e3e7a77f928da545e872a6a)
1*2fe8fb19SBen Gras /*	$NetBSD: powerpc-gcc.h,v 1.2 2005/12/24 21:11:16 perry Exp $	*/
2*2fe8fb19SBen Gras 
3*2fe8fb19SBen Gras /*
4*2fe8fb19SBen Gras -------------------------------------------------------------------------------
5*2fe8fb19SBen Gras One of the macros `BIGENDIAN' or `LITTLEENDIAN' must be defined.
6*2fe8fb19SBen Gras -------------------------------------------------------------------------------
7*2fe8fb19SBen Gras */
8*2fe8fb19SBen Gras #include <machine/endian.h>
9*2fe8fb19SBen Gras #if _BYTE_ORDER == _BIG_ENDIAN
10*2fe8fb19SBen Gras #define BIGENDIAN
11*2fe8fb19SBen Gras #endif
12*2fe8fb19SBen Gras #if _BYTE_ORDER == _LITTLE_ENDIAN
13*2fe8fb19SBen Gras #define LITTLEENDIAN
14*2fe8fb19SBen Gras #endif
15*2fe8fb19SBen Gras 
16*2fe8fb19SBen Gras /*
17*2fe8fb19SBen Gras -------------------------------------------------------------------------------
18*2fe8fb19SBen Gras The macro `BITS64' can be defined to indicate that 64-bit integer types are
19*2fe8fb19SBen Gras supported by the compiler.
20*2fe8fb19SBen Gras -------------------------------------------------------------------------------
21*2fe8fb19SBen Gras */
22*2fe8fb19SBen Gras #define BITS64
23*2fe8fb19SBen Gras 
24*2fe8fb19SBen Gras /*
25*2fe8fb19SBen Gras -------------------------------------------------------------------------------
26*2fe8fb19SBen Gras Each of the following `typedef's defines the most convenient type that holds
27*2fe8fb19SBen Gras integers of at least as many bits as specified.  For example, `uint8' should
28*2fe8fb19SBen Gras be the most convenient type that can hold unsigned integers of as many as
29*2fe8fb19SBen Gras 8 bits.  The `flag' type must be able to hold either a 0 or 1.  For most
30*2fe8fb19SBen Gras implementations of C, `flag', `uint8', and `int8' should all be `typedef'ed
31*2fe8fb19SBen Gras to the same as `int'.
32*2fe8fb19SBen Gras -------------------------------------------------------------------------------
33*2fe8fb19SBen Gras */
34*2fe8fb19SBen Gras typedef int flag;
35*2fe8fb19SBen Gras typedef int uint8;
36*2fe8fb19SBen Gras typedef int int8;
37*2fe8fb19SBen Gras typedef int uint16;
38*2fe8fb19SBen Gras typedef int int16;
39*2fe8fb19SBen Gras typedef unsigned int uint32;
40*2fe8fb19SBen Gras typedef signed int int32;
41*2fe8fb19SBen Gras #ifdef BITS64
42*2fe8fb19SBen Gras typedef unsigned long long int uint64;
43*2fe8fb19SBen Gras typedef signed long long int int64;
44*2fe8fb19SBen Gras #endif
45*2fe8fb19SBen Gras 
46*2fe8fb19SBen Gras /*
47*2fe8fb19SBen Gras -------------------------------------------------------------------------------
48*2fe8fb19SBen Gras Each of the following `typedef's defines a type that holds integers
49*2fe8fb19SBen Gras of _exactly_ the number of bits specified.  For instance, for most
50*2fe8fb19SBen Gras implementation of C, `bits16' and `sbits16' should be `typedef'ed to
51*2fe8fb19SBen Gras `unsigned short int' and `signed short int' (or `short int'), respectively.
52*2fe8fb19SBen Gras -------------------------------------------------------------------------------
53*2fe8fb19SBen Gras */
54*2fe8fb19SBen Gras typedef unsigned char bits8;
55*2fe8fb19SBen Gras typedef signed char sbits8;
56*2fe8fb19SBen Gras typedef unsigned short int bits16;
57*2fe8fb19SBen Gras typedef signed short int sbits16;
58*2fe8fb19SBen Gras typedef unsigned int bits32;
59*2fe8fb19SBen Gras typedef signed int sbits32;
60*2fe8fb19SBen Gras #ifdef BITS64
61*2fe8fb19SBen Gras typedef unsigned long long int bits64;
62*2fe8fb19SBen Gras typedef signed long long int sbits64;
63*2fe8fb19SBen Gras #endif
64*2fe8fb19SBen Gras 
65*2fe8fb19SBen Gras #ifdef BITS64
66*2fe8fb19SBen Gras /*
67*2fe8fb19SBen Gras -------------------------------------------------------------------------------
68*2fe8fb19SBen Gras The `LIT64' macro takes as its argument a textual integer literal and
69*2fe8fb19SBen Gras if necessary ``marks'' the literal as having a 64-bit integer type.
70*2fe8fb19SBen Gras For example, the GNU C Compiler (`gcc') requires that 64-bit literals be
71*2fe8fb19SBen Gras appended with the letters `LL' standing for `long long', which is `gcc's
72*2fe8fb19SBen Gras name for the 64-bit integer type.  Some compilers may allow `LIT64' to be
73*2fe8fb19SBen Gras defined as the identity macro:  `#define LIT64( a ) a'.
74*2fe8fb19SBen Gras -------------------------------------------------------------------------------
75*2fe8fb19SBen Gras */
76*2fe8fb19SBen Gras #define LIT64( a ) a##LL
77*2fe8fb19SBen Gras #endif
78*2fe8fb19SBen Gras 
79*2fe8fb19SBen Gras /*
80*2fe8fb19SBen Gras -------------------------------------------------------------------------------
81*2fe8fb19SBen Gras The macro `INLINE' can be used before functions that should be inlined.  If
82*2fe8fb19SBen Gras a compiler does not support explicit inlining, this macro should be defined
83*2fe8fb19SBen Gras to be `static'.
84*2fe8fb19SBen Gras -------------------------------------------------------------------------------
85*2fe8fb19SBen Gras */
86*2fe8fb19SBen Gras #define INLINE static inline
87*2fe8fb19SBen Gras 
88*2fe8fb19SBen Gras #define FLOAT64_DEMANGLE(a)	(a)
89*2fe8fb19SBen Gras #define FLOAT64_MANGLE(a)	(a)
90