1 /* src/vm/jit/i386/arch.h - architecture defines for i386
3 Copyright (C) 1996-2005 R. Grafl, A. Krall, C. Kruegel, C. Oates,
4 R. Obermaisser, M. Platter, M. Probst, S. Ring, E. Steiner,
5 C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich, J. Wenninger,
6 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., 59 Temple Place - Suite 330, Boston, MA
25 Contact: cacao@complang.tuwien.ac.at
27 Authors: Christian Thalinger
31 $Id: arch.h 2477 2005-05-13 14:04:16Z twisti $
40 /* define x86 register numbers ************************************************/
52 /* preallocated registers *****************************************************/
54 /* integer registers */
56 #define REG_RESULT EAX /* to deliver method results */
57 #define REG_RESULT2 EDX /* to deliver long method results */
59 #define REG_ITMP1 EAX /* temporary register */
60 #define REG_ITMP2 ECX /* temporary register */
61 #define REG_ITMP3 EDX /* temporary register */
63 #define REG_NULL -1 /* used for reg_of_var where d is not needed */
65 #define REG_ITMP1_XPTR EAX /* exception pointer = temporary register 1 */
66 #define REG_ITMP2_XPC ECX /* exception pc = temporary register 2 */
68 #define REG_SP ESP /* stack pointer */
70 /* floating point registers */
72 #define REG_FRESULT 0 /* to deliver floating point method results */
73 #define REG_FTMP1 6 /* temporary floating point register */
74 #define REG_FTMP2 7 /* temporary floating point register */
75 #define REG_FTMP3 7 /* temporary floating point register */
78 #define INT_REG_CNT 8 /* number of integer registers */
79 #define INT_SAV_CNT 3 /* number of integer callee saved registers */
80 #define INT_ARG_CNT 0 /* number of integer argument registers */
81 #define INT_TMP_CNT 1 /* number of integer temporary registers */
82 #define INT_RES_CNT 3 /* numebr of integer reserved registers */
84 #define FLT_REG_CNT 8 /* number of float registers */
85 #define FLT_SAV_CNT 0 /* number of float callee saved registers */
86 #define FLT_ARG_CNT 0 /* number of float argument registers */
87 #define FLT_TMP_CNT 0 /* number of float temporary registers */
88 #define FLT_RES_CNT 8 /* numebr of float reserved registers */
90 #define TRACE_ARGS_NUM 8
92 #define REG_RES_CNT 3 /* number of reserved registers */
95 /* define architecture features ***********************************************/
98 #define WORDS_BIGENDIAN 0
100 #define U8_AVAILABLE 1
102 #define USE_CODEMMAP 1
104 #define USEBUILTINTABLE
106 #define SUPPORT_DIVISION 1
107 #define SUPPORT_LONG 1
108 #define SUPPORT_FLOAT 1
109 #define SUPPORT_DOUBLE 1
111 #define SUPPORT_IFCVT 1
112 #define SUPPORT_FICVT 1
114 #define SUPPORT_LONG_ADD 1
115 #define SUPPORT_LONG_CMP 1
116 #define SUPPORT_LONG_LOGICAL 1
117 #define SUPPORT_LONG_SHIFT 1
118 #define SUPPORT_LONG_MUL 1
119 #define SUPPORT_LONG_DIV 0
120 #define SUPPORT_LONG_ICVT 1
121 #define SUPPORT_LONG_FCVT 1
123 #define SUPPORT_CONST_LOGICAL 1 /* AND, OR, XOR with immediates */
124 #define SUPPORT_CONST_MUL 1 /* mutiply with immediate */
126 #define SUPPORT_CONST_STORE 1 /* do we support const stores */
127 #define SUPPORT_CONST_STORE_ZERO_ONLY 0 /* on some risc machines we can */
128 /* only store REG_ZERO */
130 #define CONDITIONAL_LOADCONST 1
132 #define HAS_4BYTE_STACKSLOT
133 /* define SUPPORT_COMBINE_INTEGER_REGISTERS */
135 /* #define CONSECUTIVE_INTEGER_ARGS */
136 /* #define CONSECUTIVE_FLOAT_ARGS */
142 * These are local overrides for various environment variables in Emacs.
143 * Please do not remove this and leave it at the end of the file, where
144 * Emacs will automagically detect them.
145 * ---------------------------------------------------------------------
148 * indent-tabs-mode: t