xref: /netbsd-src/external/gpl3/gcc.old/dist/libgcc/config/rs6000/sfp-machine.h (revision bdc22b2e01993381dcefeff2bc9b56ca75a4235c)
1 #define _FP_W_TYPE_SIZE		32
2 #define _FP_W_TYPE		unsigned long
3 #define _FP_WS_TYPE		signed long
4 #define _FP_I_TYPE		long
5 
6 /* The type of the result of a floating point comparison.  This must
7    match `__libgcc_cmp_return__' in GCC for the target.  */
8 typedef int __gcc_CMPtype __attribute__ ((mode (__libgcc_cmp_return__)));
9 #define CMPtype __gcc_CMPtype
10 
11 #define _FP_MUL_MEAT_S(R,X,Y)				\
12   _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
13 #define _FP_MUL_MEAT_D(R,X,Y)				\
14   _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
15 #define _FP_MUL_MEAT_Q(R,X,Y)				\
16   _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
17 
18 #define _FP_DIV_MEAT_S(R,X,Y)	_FP_DIV_MEAT_1_loop(S,R,X,Y)
19 #define _FP_DIV_MEAT_D(R,X,Y)	_FP_DIV_MEAT_2_udiv(D,R,X,Y)
20 #define _FP_DIV_MEAT_Q(R,X,Y)	_FP_DIV_MEAT_4_udiv(Q,R,X,Y)
21 
22 #define _FP_NANFRAC_S		((_FP_QNANBIT_S << 1) - 1)
23 #define _FP_NANFRAC_D		((_FP_QNANBIT_D << 1) - 1), -1
24 #define _FP_NANFRAC_Q		((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1
25 #define _FP_NANSIGN_S		0
26 #define _FP_NANSIGN_D		0
27 #define _FP_NANSIGN_Q		0
28 
29 #define _FP_KEEPNANFRACP 1
30 #define _FP_QNANNEGATEDP 0
31 
32 /* Someone please check this.  */
33 #define _FP_CHOOSENAN(fs, wc, R, X, Y, OP)			\
34   do {								\
35     if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs)		\
36 	&& !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs))	\
37       {								\
38 	R##_s = Y##_s;						\
39 	_FP_FRAC_COPY_##wc(R,Y);				\
40       }								\
41     else							\
42       {								\
43 	R##_s = X##_s;						\
44 	_FP_FRAC_COPY_##wc(R,X);				\
45       }								\
46     R##_c = FP_CLS_NAN;						\
47   } while (0)
48 
49 #define _FP_TININESS_AFTER_ROUNDING 0
50 
51 #define	__LITTLE_ENDIAN	1234
52 #define	__BIG_ENDIAN	4321
53 
54 #if defined __BIG_ENDIAN__ || defined _BIG_ENDIAN
55 # if defined __LITTLE_ENDIAN__ || defined _LITTLE_ENDIAN
56 #  error "Both BIG_ENDIAN and LITTLE_ENDIAN defined!"
57 # endif
58 # define __BYTE_ORDER __BIG_ENDIAN
59 #else
60 # if defined __LITTLE_ENDIAN__ || defined _LITTLE_ENDIAN
61 #  define __BYTE_ORDER __LITTLE_ENDIAN
62 # else
63 #  error "Cannot determine current byte order"
64 # endif
65 #endif
66 
67 
68 /* Define ALIASNAME as a strong alias for NAME.  */
69 # define strong_alias(name, aliasname) _strong_alias(name, aliasname)
70 # define _strong_alias(name, aliasname) \
71   extern __typeof (name) aliasname __attribute__ ((alias (#name)));
72