xref: /freebsd-src/lib/libc/riscv/softfloat/riscv-gcc.h (revision 2a63c3be158216222d89a073dcbd6a72ee4aab5a)
1*7804dd52SRuslan Bukin /* $NetBSD: arm-gcc.h,v 1.2 2001/02/21 18:09:25 bjh21 Exp $ */
2*7804dd52SRuslan Bukin 
3*7804dd52SRuslan Bukin /*
4*7804dd52SRuslan Bukin -------------------------------------------------------------------------------
5*7804dd52SRuslan Bukin One of the macros `BIGENDIAN' or `LITTLEENDIAN' must be defined.
6*7804dd52SRuslan Bukin -------------------------------------------------------------------------------
7*7804dd52SRuslan Bukin */
8*7804dd52SRuslan Bukin #define LITTLEENDIAN
9*7804dd52SRuslan Bukin 
10*7804dd52SRuslan Bukin /*
11*7804dd52SRuslan Bukin -------------------------------------------------------------------------------
12*7804dd52SRuslan Bukin The macro `BITS64' can be defined to indicate that 64-bit integer types are
13*7804dd52SRuslan Bukin supported by the compiler.
14*7804dd52SRuslan Bukin -------------------------------------------------------------------------------
15*7804dd52SRuslan Bukin */
16*7804dd52SRuslan Bukin #define BITS64
17*7804dd52SRuslan Bukin 
18*7804dd52SRuslan Bukin /*
19*7804dd52SRuslan Bukin -------------------------------------------------------------------------------
20*7804dd52SRuslan Bukin Each of the following `typedef's defines the most convenient type that holds
21*7804dd52SRuslan Bukin integers of at least as many bits as specified.  For example, `uint8' should
22*7804dd52SRuslan Bukin be the most convenient type that can hold unsigned integers of as many as
23*7804dd52SRuslan Bukin 8 bits.  The `flag' type must be able to hold either a 0 or 1.  For most
24*7804dd52SRuslan Bukin implementations of C, `flag', `uint8', and `int8' should all be `typedef'ed
25*7804dd52SRuslan Bukin to the same as `int'.
26*7804dd52SRuslan Bukin -------------------------------------------------------------------------------
27*7804dd52SRuslan Bukin */
28*7804dd52SRuslan Bukin typedef int flag;
29*7804dd52SRuslan Bukin typedef int uint8;
30*7804dd52SRuslan Bukin typedef int int8;
31*7804dd52SRuslan Bukin typedef int uint16;
32*7804dd52SRuslan Bukin typedef int int16;
33*7804dd52SRuslan Bukin typedef unsigned int uint32;
34*7804dd52SRuslan Bukin typedef signed int int32;
35*7804dd52SRuslan Bukin #ifdef BITS64
36*7804dd52SRuslan Bukin typedef unsigned long long int uint64;
37*7804dd52SRuslan Bukin typedef signed long long int int64;
38*7804dd52SRuslan Bukin #endif
39*7804dd52SRuslan Bukin 
40*7804dd52SRuslan Bukin /*
41*7804dd52SRuslan Bukin -------------------------------------------------------------------------------
42*7804dd52SRuslan Bukin Each of the following `typedef's defines a type that holds integers
43*7804dd52SRuslan Bukin of _exactly_ the number of bits specified.  For instance, for most
44*7804dd52SRuslan Bukin implementation of C, `bits16' and `sbits16' should be `typedef'ed to
45*7804dd52SRuslan Bukin `unsigned short int' and `signed short int' (or `short int'), respectively.
46*7804dd52SRuslan Bukin -------------------------------------------------------------------------------
47*7804dd52SRuslan Bukin */
48*7804dd52SRuslan Bukin typedef unsigned char bits8;
49*7804dd52SRuslan Bukin typedef signed char sbits8;
50*7804dd52SRuslan Bukin typedef unsigned short int bits16;
51*7804dd52SRuslan Bukin typedef signed short int sbits16;
52*7804dd52SRuslan Bukin typedef unsigned int bits32;
53*7804dd52SRuslan Bukin typedef signed int sbits32;
54*7804dd52SRuslan Bukin #ifdef BITS64
55*7804dd52SRuslan Bukin typedef unsigned long long int bits64;
56*7804dd52SRuslan Bukin typedef signed long long int sbits64;
57*7804dd52SRuslan Bukin #endif
58*7804dd52SRuslan Bukin 
59*7804dd52SRuslan Bukin #ifdef BITS64
60*7804dd52SRuslan Bukin /*
61*7804dd52SRuslan Bukin -------------------------------------------------------------------------------
62*7804dd52SRuslan Bukin The `LIT64' macro takes as its argument a textual integer literal and
63*7804dd52SRuslan Bukin if necessary ``marks'' the literal as having a 64-bit integer type.
64*7804dd52SRuslan Bukin For example, the GNU C Compiler (`gcc') requires that 64-bit literals be
65*7804dd52SRuslan Bukin appended with the letters `LL' standing for `long long', which is `gcc's
66*7804dd52SRuslan Bukin name for the 64-bit integer type.  Some compilers may allow `LIT64' to be
67*7804dd52SRuslan Bukin defined as the identity macro:  `#define LIT64( a ) a'.
68*7804dd52SRuslan Bukin -------------------------------------------------------------------------------
69*7804dd52SRuslan Bukin */
70*7804dd52SRuslan Bukin #define LIT64( a ) a##LL
71*7804dd52SRuslan Bukin #endif
72*7804dd52SRuslan Bukin 
73*7804dd52SRuslan Bukin /*
74*7804dd52SRuslan Bukin -------------------------------------------------------------------------------
75*7804dd52SRuslan Bukin The macro `INLINE' can be used before functions that should be inlined.  If
76*7804dd52SRuslan Bukin a compiler does not support explicit inlining, this macro should be defined
77*7804dd52SRuslan Bukin to be `static'.
78*7804dd52SRuslan Bukin -------------------------------------------------------------------------------
79*7804dd52SRuslan Bukin */
80*7804dd52SRuslan Bukin #define INLINE static __inline
81*7804dd52SRuslan Bukin 
82*7804dd52SRuslan Bukin #if defined(SOFTFLOAT_FOR_GCC)
83*7804dd52SRuslan Bukin #define FLOAT64_DEMANGLE(a)	(a)
84*7804dd52SRuslan Bukin #define FLOAT64_MANGLE(a)	(a)
85*7804dd52SRuslan Bukin #endif
86