blob: 0af5c3c889498861d1b58b0f3a8431d9ecff1eda [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * Linux/PA-RISC Project (http://www.parisc-linux.org/)
3 *
4 * Floating-point emulation code
5 * Copyright (C) 2001 Hewlett-Packard (Paul Bame) <bame@debian.org>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2, or (at your option)
10 * any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21/*
22 * BEGIN_DESC
23 *
24 * File:
25 * @(#) pa/fp/fpu.h $Revision: 1.1 $
26 *
27 * Purpose:
28 * <<please update with a synopis of the functionality provided by this file>>
29 *
30 *
31 * END_DESC
32*/
33
34#ifdef __NO_PA_HDRS
35 PA header file -- do not include this header file for non-PA builds.
36#endif
37
38
39#ifndef _MACHINE_FPU_INCLUDED /* allows multiple inclusion */
40#define _MACHINE_FPU_INCLUDED
41
42#if 0
43#ifndef _SYS_STDSYMS_INCLUDED
44# include <sys/stdsyms.h>
45#endif /* _SYS_STDSYMS_INCLUDED */
46#include <machine/pdc/pdc_rqsts.h>
47#endif
48
49#define PA83_FPU_FLAG 0x00000001
50#define PA89_FPU_FLAG 0x00000002
51#define PA2_0_FPU_FLAG 0x00000010
52
53#define TIMEX_EXTEN_FLAG 0x00000004
54
55#define ROLEX_EXTEN_FLAG 0x00000008
56#define COPR_FP 0x00000080 /* Floating point -- Coprocessor 0 */
57#define SFU_MPY_DIVIDE 0x00008000 /* Multiply/Divide __ SFU 0 */
58
59
60#define EM_FPU_TYPE_OFFSET 272
61
62/* version of EMULATION software for COPR,0,0 instruction */
63#define EMULATION_VERSION 4
64
65/*
66 * The only was to differeniate between TIMEX and ROLEX (or PCX-S and PCX-T)
67 * is thorough the potential type field from the PDC_MODEL call. The
68 * following flags are used at assist this differeniation.
69 */
70
71#define ROLEX_POTENTIAL_KEY_FLAGS PDC_MODEL_CPU_KEY_WORD_TO_IO
72#define TIMEX_POTENTIAL_KEY_FLAGS (PDC_MODEL_CPU_KEY_QUAD_STORE | \
73 PDC_MODEL_CPU_KEY_RECIP_SQRT)
74
75
76#endif /* ! _MACHINE_FPU_INCLUDED */