1 /* Machine-dependent software floating-point d 1
2 Alpha kernel version.
3 Copyright (C) 1997,1998,1999 Free Software
4 This file is part of the GNU C Library.
5 Contributed by Richard Henderson (rth@cygnu
6 Jakub Jelinek (jakub@redhat.
7 David S. Miller (davem@redha
8
9 The GNU C Library is free software; you can
10 modify it under the terms of the GNU Librar
11 published by the Free Software Foundation;
12 License, or (at your option) any later vers
13
14 The GNU C Library is distributed in the hop
15 but WITHOUT ANY WARRANTY; without even the
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR
17 Library General Public License for more det
18
19 You should have received a copy of the GNU
20 License along with the GNU C Library; see t
21 not, write to the Free Software Foundation,
22 59 Temple Place - Suite 330, Boston, MA 021
23
24 #ifndef _SFP_MACHINE_H
25 #define _SFP_MACHINE_H
26
27 #define _FP_W_TYPE_SIZE 64
28 #define _FP_W_TYPE unsigned long
29 #define _FP_WS_TYPE signed long
30 #define _FP_I_TYPE long
31
32 #define _FP_MUL_MEAT_S(R,X,Y)
33 _FP_MUL_MEAT_1_imm(_FP_WFRACBITS_S,R,X,Y)
34 #define _FP_MUL_MEAT_D(R,X,Y)
35 _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_D,R,X,Y,um
36 #define _FP_MUL_MEAT_Q(R,X,Y)
37 _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_Q,R,X,Y,um
38
39 #define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1
40 #define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_1
41 #define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_2
42
43 #define _FP_NANFRAC_S _FP_QNANBIT_S
44 #define _FP_NANFRAC_D _FP_QNANBIT_D
45 #define _FP_NANFRAC_Q _FP_QNANBIT_Q
46 #define _FP_NANSIGN_S 1
47 #define _FP_NANSIGN_D 1
48 #define _FP_NANSIGN_Q 1
49
50 #define _FP_KEEPNANFRACP 1
51
52 /* Alpha Architecture Handbook, 4.7.10.4 sais
53 * we should prefer any type of NaN in Fb, the
54 */
55 #define _FP_CHOOSENAN(fs, wc, R, X, Y, OP)
56 do {
57 R##_s = Y##_s;
58 _FP_FRAC_COPY_##wc(R,X);
59 R##_c = FP_CLS_NAN;
60 } while (0)
61
62 /* Obtain the current rounding mode. */
63 #define FP_ROUNDMODE mode
64 #define FP_RND_NEAREST (FPCR_DYN_NORMAL >> FP
65 #define FP_RND_ZERO (FPCR_DYN_CHOPPED >> F
66 #define FP_RND_PINF (FPCR_DYN_PLUS >> FPCR
67 #define FP_RND_MINF (FPCR_DYN_MINUS >> FPC
68
69 /* Exception flags. */
70 #define FP_EX_INVALID IEEE_TRAP_ENAB
71 #define FP_EX_OVERFLOW IEEE_TRAP_ENAB
72 #define FP_EX_UNDERFLOW IEEE_TRAP_ENAB
73 #define FP_EX_DIVZERO IEEE_TRAP_ENAB
74 #define FP_EX_INEXACT IEEE_TRAP_ENAB
75 #define FP_EX_DENORM IEEE_TRAP_ENAB
76
77 #define FP_DENORM_ZERO (swcr & IEEE_M
78
79 /* We write the results always */
80 #define FP_INHIBIT_RESULTS 0
81
82 #endif
83
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