freepascal.compiler/compiler/arm/cpuinfo.pas

{
    $Id$
    Copyright (c) 1998-2002 by the Free Pascal development team

    Basic Processor information for the ARM

    See the file COPYING.FPC, included in this distribution,
    for details about the copyright.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

 **********************************************************************}

Unit CPUInfo;

Interface

Type
   { Architecture word - Native unsigned type }
   AWord  = Longword;
   PAWord = ^AWord;

   { this must be an ordinal type with the same size as a pointer }
   { to allow some dirty type casts for example when using        }
   { tconstsym.value                                              }
   { Note: must be unsigned!! Otherwise, ugly code like           }
   { pointer(-1) will result in a pointer with the value          }
   { $fffffffffffffff on a 32bit machine if the compiler uses     }
   { int64 constants internally (JM)                              }
   TConstPtrUInt = Longword;

   bestreal = double;
   ts32real = single;
   ts64real = double;
   ts80real = extended;
   ts64comp = comp;

   pbestreal=^bestreal;

   { possible supported processors for this target }
   tprocessors =
      (no_processor,
       armv4
      );

   tfputype =
     (no_fpuprocessor,
      fpu_soft,
      fpu_fpa,
      fpu_fpa10,
      fpu_fpa11,
      fpu_vfp
     );

Const
   {# Size of native extended floating point type }
   extended_size = 8;
   {# Size of a pointer                           }
   pointer_size  = 4;
   {# Size of a multimedia register               }
   mmreg_size = 16;
   { target cpu string (used by compiler options) }
   target_cpu_string = 'arm';
   { size of the buffer used for setjump/longjmp
     the size of this buffer is deduced from the
     jmp_buf structure in setjumph.inc file
   }
   { for linux: }
   jmp_buf_size = 220; { according to sizeof(jmp_buf) on my Zaurus (FK) }

Implementation

end.
{
  $Log$
  Revision 1.2  2003-08-25 23:20:38  florian
    + started to implement FPU support for the ARM
    * fixed a lot of other things

  Revision 1.1  2003/07/21 16:35:30  florian
    * very basic stuff for the arm
}