gdb/i387-tdep.h

   1 /* Target-dependent code for the i387.
   2
   3    Copyright 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   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 of the License, or
  10    (at your option) 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,
  20    Boston, MA 02111-1307, USA.  */
  21
  22 #ifndef I387_TDEP_H
  23 #define I387_TDEP_H
  24
  25 struct gdbarch;
  26 struct ui_file;
  27 struct frame_info;
  28 struct type;
  29
  30 /* Print out the i387 floating point state.  */
  31
  32 extern void i387_print_float_info (struct gdbarch *gdbarch,
  33                                    struct ui_file *file,
  34                                    struct frame_info *frame,
  35                                    const char *args);
  36
  37 /* Read a value of type TYPE from register REGNUM in frame FRAME, and
  38    return its contents in TO.  */
  39
  40 extern void i387_register_to_value (struct frame_info *frame, int regnum,
  41                                     struct type *type, void *to);
  42
  43 /* Write the contents FROM of a value of type TYPE into register
  44    REGNUM in frame FRAME.  */
  45
  46 extern void i387_value_to_register (struct frame_info *frame, int regnum,
  47                                     struct type *type, const void *from);
  48 \f
  49
  50 /* Size of the memory area use by the 'fsave' and 'fxsave'
  51    instructions.  */
  52 #define I387_SIZEOF_FSAVE       108
  53 #define I387_SIZEOF_FXSAVE      512
  54
  55 /* Fill register REGNUM in GDB's register cache with the appropriate
  56    value from *FSAVE.  This function masks off any of the reserved
  57    bits in *FSAVE.  */
  58
  59 extern void i387_supply_fsave (const char *fsave, int regnum);
  60
  61 /* Fill register REGNUM (if it is a floating-point register) in *FSAVE
  62    with the value in GDB's register cache.  If REGNUM is -1, do this
  63    for all registers.  This function doesn't touch any of the reserved
  64    bits in *FSAVE.  */
  65
  66 extern void i387_fill_fsave (char *fsave, int regnum);
  67
  68 /* Fill register REGNUM in GDB's register cache with the appropriate
  69    floating-point or SSE register value from *FXSAVE.  This function
  70    masks off any of the reserved bits in *FXSAVE.  */
  71
  72 extern void i387_supply_fxsave (const char *fxsave, int regnum);
  73
  74 /* Fill register REGNUM (if it is a floating-point or SSE register) in
  75    *FXSAVE with the value in GDB's register cache.  If REGNUM is -1, do
  76    this for all registers.  This function doesn't touch any of the
  77    reserved bits in *FXSAVE.  */
  78
  79 extern void i387_fill_fxsave (char *fxsave, int regnum);
  80
  81 #endif /* i387-tdep.h */