arch/parisc/math-emu/fpu.h

   1 /*
   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 */