1 /* SPDX-License-Identifier: GPL-2.0+
2  *
3  * Machine-dependent software floating-point definitions.
4    SuperH kernel version.
5    Copyright (C) 1997,1998,1999 Free Software Foundation, Inc.
6    This file is part of the GNU C Library.
7    Contributed by Richard Henderson (rth@cygnus.com),
8 		  Jakub Jelinek (jj@ultra.linux.cz),
9 		  David S. Miller (davem@redhat.com) and
10 		  Peter Maydell (pmaydell@chiark.greenend.org.uk).
11 */
12 
13 #ifndef _SFP_MACHINE_H
14 #define _SFP_MACHINE_H
15 
16 #ifdef __BIG_ENDIAN__
17 #define __BYTE_ORDER __BIG_ENDIAN
18 #define __LITTLE_ENDIAN 0
19 #else
20 #define __BYTE_ORDER __LITTLE_ENDIAN
21 #define __BIG_ENDIAN 0
22 #endif
23 
24 #define _FP_W_TYPE_SIZE		32
25 #define _FP_W_TYPE		unsigned long
26 #define _FP_WS_TYPE		signed long
27 #define _FP_I_TYPE		long
28 
29 #define _FP_MUL_MEAT_S(R,X,Y)					\
30   _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
31 #define _FP_MUL_MEAT_D(R,X,Y)					\
32   _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
33 #define _FP_MUL_MEAT_Q(R,X,Y)					\
34   _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
35 
36 #define _FP_DIV_MEAT_S(R,X,Y)	_FP_DIV_MEAT_1_udiv(S,R,X,Y)
37 #define _FP_DIV_MEAT_D(R,X,Y)	_FP_DIV_MEAT_2_udiv(D,R,X,Y)
38 #define _FP_DIV_MEAT_Q(R,X,Y)	_FP_DIV_MEAT_4_udiv(Q,R,X,Y)
39 
40 #define _FP_NANFRAC_S		((_FP_QNANBIT_S << 1) - 1)
41 #define _FP_NANFRAC_D		((_FP_QNANBIT_D << 1) - 1), -1
42 #define _FP_NANFRAC_Q		((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1
43 #define _FP_NANSIGN_S		0
44 #define _FP_NANSIGN_D		0
45 #define _FP_NANSIGN_Q		0
46 
47 #define _FP_KEEPNANFRACP 1
48 
49 /*
50  * If one NaN is signaling and the other is not,
51  * we choose that one, otherwise we choose X.
52  */
53 #define _FP_CHOOSENAN(fs, wc, R, X, Y, OP)                      \
54   do {                                                          \
55     if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs)          \
56         && !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs))     \
57       {                                                         \
58         R##_s = Y##_s;                                          \
59         _FP_FRAC_COPY_##wc(R,Y);                                \
60       }                                                         \
61     else                                                        \
62       {                                                         \
63         R##_s = X##_s;                                          \
64         _FP_FRAC_COPY_##wc(R,X);                                \
65       }                                                         \
66     R##_c = FP_CLS_NAN;                                         \
67   } while (0)
68 
69 //#define FP_ROUNDMODE		FPSCR_RM
70 #define FP_DENORM_ZERO		1/*FPSCR_DN*/
71 
72 /* Exception flags. */
73 #define FP_EX_INVALID		(1<<4)
74 #define FP_EX_DIVZERO		(1<<3)
75 #define FP_EX_OVERFLOW		(1<<2)
76 #define FP_EX_UNDERFLOW		(1<<1)
77 #define FP_EX_INEXACT		(1<<0)
78 
79 #endif
80 
81