1 /* src/vm/jit/mips/arch.h - architecture defines for MIPS
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 2444 2005-05-11 12:51:53Z twisti $
39 /* preallocated registers *****************************************************/
41 /* integer registers */
43 #define REG_ZERO 0 /* always zero */
45 #define REG_RESULT 2 /* to deliver method results */
47 #define REG_ITMP1 1 /* temporary register */
48 #define REG_ITMP2 3 /* temporary register and method pointer */
49 #define REG_ITMP3 25 /* temporary register */
51 #define REG_ARG_0 4 /* argument register */
52 #define REG_ARG_1 5 /* argument register */
53 #define REG_ARG_2 6 /* argument register */
54 #define REG_ARG_3 7 /* argument register */
55 #define REG_ARG_4 8 /* argument register */
56 #define REG_ARG_5 9 /* argument register */
58 #define REG_RA 31 /* return address */
59 #define REG_SP 29 /* stack pointer */
60 #define REG_GP 28 /* global pointer */
62 #define REG_PV 30 /* procedure vector, must be provided by caller */
63 #define REG_METHODPTR 25 /* pointer to the place from where the procedure */
64 /* vector has been fetched */
65 #define REG_ITMP1_XPTR 1 /* exception pointer = temporary register 1 */
66 #define REG_ITMP2_XPC 3 /* exception pc = temporary register 2 */
69 /* floating point registers */
71 #define REG_FRESULT 0 /* to deliver floating point method results */
73 #define REG_FTMP1 1 /* temporary floating point register */
74 #define REG_FTMP2 2 /* temporary floating point register */
75 #define REG_FTMP3 3 /* temporary floating point register */
77 #define REG_IFTMP 1 /* temporary integer and floating point register */
80 #define INT_REG_CNT 32 /* number of integer registers */
81 #define INT_SAV_CNT 8 /* number of int callee saved registers */
82 #define INT_ARG_CNT 8 /* number of int argument registers */
83 #define INT_TMP_CNT 5 /* number of integer temporary registers */
84 #define INT_RES_CNT 3 /* number of integer reserved registers */
86 #define FLT_REG_CNT 32 /* number of float registers */
87 #define FLT_SAV_CNT 4 /* number of flt callee saved registers */
88 #define FLT_ARG_CNT 8 /* number of flt argument registers */
89 #define FLT_TMP_CNT 15 /* number of float temporary registers */
90 #define FLT_RES_CNT 3 /* number of float reserved registers */
92 #define TRACE_ARGS_NUM 8
95 /* define architecture features ***********************************************/
98 #define WORDS_BIGENDIAN 1
100 #define U8_AVAILABLE 1
102 /* #define USE_CODEMMAP */
104 #define USEBUILTINTABLE
106 #define SUPPORT_DIVISION 0
107 #define SUPPORT_LONG 1
108 #define SUPPORT_FLOAT 1
109 #define SUPPORT_DOUBLE 1
111 #define SUPPORT_FMOD 1
112 #define SUPPORT_IFCVT 1
113 #define SUPPORT_FICVT 0
115 #define SUPPORT_LONG_ADD 1
116 #define SUPPORT_LONG_CMP 1
117 #define SUPPORT_LONG_LOGICAL 1
118 #define SUPPORT_LONG_SHIFT 1
119 #define SUPPORT_LONG_MUL 1
120 #define SUPPORT_LONG_DIV 0
121 #define SUPPORT_LONG_ICVT 0
122 #define SUPPORT_LONG_FCVT 1
124 #define SUPPORT_CONST_LOGICAL 1 /* AND, OR, XOR with immediates */
125 #define SUPPORT_CONST_MUL 1 /* mutiply with immediate */
127 #define SUPPORT_CONST_STORE 1 /* do we support const stores */
128 #define SUPPORT_CONST_STORE_ZERO_ONLY 1 /* on some risc machines we can */
129 /* only store REG_ZERO */
131 /* #define CONDITIONAL_LOADCONST 1 */
133 /* #define CONSECUTIVE_INTEGER_ARGS */
134 /* #define CONSECUTIVE_FLOAT_ARGS */
140 * These are local overrides for various environment variables in Emacs.
141 * Please do not remove this and leave it at the end of the file, where
142 * Emacs will automagically detect them.
143 * ---------------------------------------------------------------------
146 * indent-tabs-mode: t