1 /* src/vm/jit/alpha/arch.h - architecture defines for Alpha
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 2039 2005-03-20 11:24:19Z twisti $
40 /* preallocated registers *****************************************************/
42 /* integer registers */
44 #define REG_RESULT 0 /* to deliver method results */
46 #define REG_RA 26 /* return address */
47 #define REG_PV 27 /* procedure vector, must be provided by caller */
48 #define REG_METHODPTR 28 /* pointer to the place from where the procedure */
49 /* vector has been fetched */
50 #define REG_ITMP1 25 /* temporary register */
51 #define REG_ITMP2 28 /* temporary register and method pointer */
52 #define REG_ITMP3 29 /* temporary register */
54 #define REG_ITMP1_XPTR 25 /* exception pointer = temporary register 1 */
55 #define REG_ITMP2_XPC 28 /* exception pc = temporary register 2 */
57 #define REG_SP 30 /* stack pointer */
58 #define REG_ZERO 31 /* always zero */
60 /* floating point registers */
62 #define REG_FRESULT 0 /* to deliver floating point method results */
64 #define REG_FTMP1 28 /* temporary floating point register */
65 #define REG_FTMP2 29 /* temporary floating point register */
66 #define REG_FTMP3 30 /* temporary floating point register */
68 #define REG_IFTMP 28 /* temporary integer and floating point register */
71 #define INT_SAV_CNT 7 /* number of int callee saved registers */
72 #define INT_ARG_CNT 6 /* number of int argument registers */
74 #define FLT_SAV_CNT 8 /* number of flt callee saved registers */
75 #define FLT_ARG_CNT 6 /* number of flt argument registers */
78 #define TRACE_ARGS_NUM 6
81 /* define architecture features ***********************************************/
84 #define WORDS_BIGENDIAN 0
86 #define U8_AVAILABLE 1
88 #define USE_CODEMMAP 1
90 /* #define USEBUILTINTABLE */
92 #define SUPPORT_DIVISION 0
93 #define SUPPORT_LONG 1
94 #define SUPPORT_FLOAT 1
95 #define SUPPORT_DOUBLE 1
97 /* #define SUPPORT_IFCVT 1 */
98 /* #define SUPPORT_FICVT 1 */
100 #define SUPPORT_LONG_ADD 1
101 #define SUPPORT_LONG_CMP 1
102 #define SUPPORT_LONG_LOGICAL 1
103 #define SUPPORT_LONG_SHIFT 1
104 #define SUPPORT_LONG_MUL 1
105 #define SUPPORT_LONG_DIV 0
106 #define SUPPORT_LONG_ICVT 1
107 #define SUPPORT_LONG_FCVT 1
109 #define SUPPORT_CONST_LOGICAL 1 /* AND, OR, XOR with immediates */
110 #define SUPPORT_CONST_MUL 1 /* mutiply with immediate */
112 #define SUPPORT_CONST_STORE 1 /* do we support const stores */
113 #define SUPPORT_CONST_STORE_ZERO_ONLY 1 /* on some risc machines we can */
114 /* only store REG_ZERO */
116 #define CONDITIONAL_LOADCONST
118 /* #define CONSECUTIVE_INTARGS */
119 /* #define CONSECUTIVE_FLOATARGS */
125 * These are local overrides for various environment variables in Emacs.
126 * Please do not remove this and leave it at the end of the file, where
127 * Emacs will automagically detect them.
128 * ---------------------------------------------------------------------
131 * indent-tabs-mode: t