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parisc
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math-emu
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fpu.h

fpu.h 2.2 KB
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  1. /*
    2. 

  2.  * Linux/PA-RISC Project (http://www.parisc-linux.org/)
    3. 

  3.  *
    4. 

  4.  * Floating-point emulation code
    5. 

  5.  *  Copyright (C) 2001 Hewlett-Packard (Paul Bame) <bame@debian.org>
    6. 

  6.  *
    7. 

  7.  *    This program is free software; you can redistribute it and/or modify
    8. 

  8.  *    it under the terms of the GNU General Public License as published by
    9. 

  9.  *    the Free Software Foundation; either version 2, or (at your option)
    10. 

  10.  *    any later version.
    11. 

  11.  *
    12. 

  12.  *    This program is distributed in the hope that it will be useful,
    13. 

  13.  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
    14. 

  14.  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    15. 

  15.  *    GNU General Public License for more details.
    16. 

  16.  *
    17. 

  17.  *    You should have received a copy of the GNU General Public License
    18. 

  18.  *    along with this program; if not, write to the Free Software
    19. 

  19.  *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
    20. 

  20.  */
    21. 

  21. /*
    22. 

  22.  * BEGIN_DESC
    23. 

  23.  * 
    24. 

  24.  *  File: 
    25. 

  25.  *      @(#)	pa/fp/fpu.h		$Revision: 1.1 $
    26. 

  26.  * 
    27. 

  27.  *  Purpose:
    28. 

  28.  *      <<please update with a synopis of the functionality provided by this file>>
    29. 

  29.  * 
    30. 

  30.  * 
    31. 

  31.  * END_DESC  
    32. 

  32. */
    33. 

  33. 

  34. #ifdef __NO_PA_HDRS
    35. 

  35.     PA header file -- do not include this header file for non-PA builds.
    36. 

  36. #endif
    37. 

  37. 

  38. 

  39. #ifndef _MACHINE_FPU_INCLUDED /* allows multiple inclusion */
    40. 

  40. #define _MACHINE_FPU_INCLUDED
    41. 

  41. 

  42. #if 0
    43. 

  43. #ifndef _SYS_STDSYMS_INCLUDED
    44. 

  44. #    include <sys/stdsyms.h>
    45. 

  45. #endif   /* _SYS_STDSYMS_INCLUDED  */
    46. 

  46. #include  <machine/pdc/pdc_rqsts.h>
    47. 

  47. #endif
    48. 

  48. 

  49. #define PA83_FPU_FLAG    0x00000001
    50. 

  50. #define PA89_FPU_FLAG    0x00000002
    51. 

  51. #define PA2_0_FPU_FLAG   0x00000010
    52. 

  52. 

  53. #define TIMEX_EXTEN_FLAG 0x00000004
    54. 

  54. 

  55. #define ROLEX_EXTEN_FLAG 0x00000008
    56. 

  56. #define COPR_FP 	0x00000080	/* Floating point -- Coprocessor 0 */
    57. 

  57. #define SFU_MPY_DIVIDE	0x00008000	/* Multiply/Divide __ SFU 0 */
    58. 

  58. 

  59. 

  60. #define EM_FPU_TYPE_OFFSET 272
    61. 

  61. 

  62. /* version of EMULATION software for COPR,0,0 instruction */
    63. 

  63. #define EMULATION_VERSION 4
    64. 

  64. 

  65. /*
    66. 

  66.  * The only was to differeniate between TIMEX and ROLEX (or PCX-S and PCX-T)
    67. 

  67.  * is thorough the potential type field from the PDC_MODEL call.  The 
    68. 

  68.  * following flags are used at assist this differeniation.
    69. 

  69.  */
    70. 

  70. 

  71. #define ROLEX_POTENTIAL_KEY_FLAGS	PDC_MODEL_CPU_KEY_WORD_TO_IO
    72. 

  72. #define TIMEX_POTENTIAL_KEY_FLAGS	(PDC_MODEL_CPU_KEY_QUAD_STORE | \
    73. 

  73. 					 PDC_MODEL_CPU_KEY_RECIP_SQRT)
    74. 

  74. 

  75. 

  76. #endif /* ! _MACHINE_FPU_INCLUDED */
    77. 

  77.