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