1 /* src/vm/jit/i386/arch.h - architecture defines for i386
3 Copyright (C) 1996-2005, 2006, 2007 R. Grafl, A. Krall, C. Kruegel,
4 C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
5 E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
6 J. Wenninger, Institut f. Computersprachen - TU Wien
8 This file is part of CACAO.
10 This program is free software; you can redistribute it and/or
11 modify it under the terms of the GNU General Public License as
12 published by the Free Software Foundation; either version 2, or (at
13 your option) any later version.
15 This program is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
31 #define JIT_COMPILER_VIA_SIGNAL
36 /* define x86 register numbers ************************************************/
47 /* define architecture features ***********************************************/
49 #define SUPPORT_DIVISION 1
50 #define SUPPORT_LONG 1
57 /* ATTENTION: i386 architectures support these conversions, but we
58 need the builtin functions in corner cases */
64 #define SUPPORT_LONG_ADD 1
65 #define SUPPORT_LONG_CMP 1
66 #define SUPPORT_LONG_CMP_CONST 1
67 #define SUPPORT_LONG_LOGICAL 1
68 #define SUPPORT_LONG_SHIFT 1
69 #define SUPPORT_LONG_MUL 1
70 #define SUPPORT_LONG_DIV 0
72 #define SUPPORT_LONG_DIV_POW2 1
73 #define SUPPORT_LONG_REM_POW2 0
75 #define SUPPORT_CONST_LOGICAL 1 /* AND, OR, XOR with immediates */
76 #define SUPPORT_CONST_MUL 1 /* mutiply with immediate */
78 #define SUPPORT_CONST_STORE 1 /* do we support const stores */
79 #define SUPPORT_CONST_STORE_ZERO_ONLY 0 /* on some risc machines we can */
80 /* only store REG_ZERO */
83 /* float **********************************************************************/
85 #define SUPPORT_FLOAT 1
87 #if defined(ENABLE_SOFT_FLOAT_CMP)
88 # define SUPPORT_FLOAT_CMP 0
90 # define SUPPORT_FLOAT_CMP 1
94 /* double *********************************************************************/
96 #define SUPPORT_DOUBLE 1
98 #if defined(ENABLE_SOFT_FLOAT_CMP)
99 # define SUPPORT_DOUBLE_CMP 0
101 # define SUPPORT_DOUBLE_CMP 1
105 /* define SUPPORT_COMBINE_INTEGER_REGISTERS */
108 /* branches *******************************************************************/
110 #define SUPPORT_BRANCH_CONDITIONAL_CONDITION_REGISTER 1
111 #define SUPPORT_BRANCH_CONDITIONAL_ONE_INTEGER_REGISTER 0
112 #define SUPPORT_BRANCH_CONDITIONAL_TWO_INTEGER_REGISTERS 0
113 #define SUPPORT_BRANCH_CONDITIONAL_UNSIGNED_CONDITIONS 1
116 /* exceptions *****************************************************************/
118 #define SUPPORT_HARDWARE_DIVIDE_BY_ZERO 1
121 /* replacement ****************************************************************/
123 #define REPLACEMENT_PATCH_SIZE 2 /* bytes */
125 /* subtype ********************************************************************/
127 #define USES_NEW_SUBTYPE 1
133 * These are local overrides for various environment variables in Emacs.
134 * Please do not remove this and leave it at the end of the file, where
135 * Emacs will automagically detect them.
136 * ---------------------------------------------------------------------
139 * indent-tabs-mode: t