/* vm/jit/i386/arch.h - architecture defines for i386

   Copyright (C) 1996-2005 R. Grafl, A. Krall, C. Kruegel, C. Oates,
   R. Obermaisser, M. Platter, M. Probst, S. Ring, E. Steiner,
   C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich, J. Wenninger,
   Institut f. Computersprachen - TU Wien

   This file is part of CACAO.

   This program is free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public License as
   published by the Free Software Foundation; either version 2, or (at
   your option) any later version.

   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.  See the GNU
   General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
   02111-1307, USA.

   Contact: cacao@complang.tuwien.ac.at

   Authors: Christian Thalinger

   $Id: arch.h 1735 2004-12-07 14:33:27Z twisti $

*/


#ifndef _ARCH_H
#define _ARCH_H


/* define x86 register numbers ************************************************/

#define EAX    0
#define ECX    1
#define EDX    2
#define EBX    3
#define ESP    4
#define EBP    5
#define ESI    6
#define EDI    7


/* preallocated registers *****************************************************/

/* integer registers */
  
#define REG_RESULT      EAX      /* to deliver method results                 */
#define REG_RESULT2     EDX      /* to deliver long method results            */

#define REG_ITMP1       EAX      /* temporary register                        */
#define REG_ITMP2       ECX      /* temporary register                        */
#define REG_ITMP3       EDX      /* temporary register                        */

#define REG_NULL        -1       /* used for reg_of_var where d is not needed */

#define REG_ITMP1_XPTR  EAX      /* exception pointer = temporary register 1  */
#define REG_ITMP2_XPC   ECX      /* exception pc = temporary register 2       */

#define REG_SP          ESP      /* stack pointer                             */

/* floating point registers */

#define REG_FRESULT     0    /* to deliver floating point method results      */
#define REG_FTMP1       6    /* temporary floating point register             */
#define REG_FTMP2       7    /* temporary floating point register             */
#define REG_FTMP3       7    /* temporary floating point register             */


#define INT_SAV_CNT     3    /* number of int callee saved registers          */
#define INT_ARG_CNT     0    /* number of int argument registers              */

#define FLT_SAV_CNT     0    /* number of flt callee saved registers          */
#define FLT_ARG_CNT     0    /* number of flt argument registers              */

#define TRACE_ARGS_NUM  8


/* define architecture features ***********************************************/

#define POINTERSIZE              4
#define WORDS_BIGENDIAN          0

#define U8_AVAILABLE             1

#define USE_CODEMMAP             1

#define SUPPORT_DIVISION         1
#define SUPPORT_LONG             1
#define SUPPORT_FLOAT            1
#define SUPPORT_DOUBLE           1

#define SUPPORT_IFCVT            1
#define SUPPORT_FICVT            1

#define SUPPORT_LONG_ADD         1
#define SUPPORT_LONG_CMP         1
#define SUPPORT_LONG_LOG         1
#define SUPPORT_LONG_SHIFT       1
#define SUPPORT_LONG_MUL         1
#define SUPPORT_LONG_DIV         0
#define SUPPORT_LONG_ICVT        1
#define SUPPORT_LONG_FCVT        1

#define SUPPORT_CONST_ASTORE     1      /* do we support const astores        */
#define SUPPORT_ONLY_ZERO_ASTORE 0      /* on risc machines we can only store */
                                        /* REG_ZERO                           */

#define USEBUILTINTABLE

#define CONDITIONAL_LOADCONST

/*  #define CONSECUTIVE_INTARGS */
/*  #define CONSECUTIVE_FLOATARGS */

#endif /* _ARCH_H */


/*
 * These are local overrides for various environment variables in Emacs.
 * Please do not remove this and leave it at the end of the file, where
 * Emacs will automagically detect them.
 * ---------------------------------------------------------------------
 * Local variables:
 * mode: c
 * indent-tabs-mode: t
 * c-basic-offset: 4
 * tab-width: 4
 * End:
 */