1 /* src/vm/jit/x86_64/md-abi.h - defines for x86_64 Linux ABI
3 Copyright (C) 1996-2005, 2006 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
25 Contact: cacao@cacaojvm.org
27 Authors: Christian Thalinger
37 /* define registers ***********************************************************/
73 /* preallocated registers *****************************************************/
75 /* integer registers */
77 #define REG_RESULT R2 /* to deliver method results */
78 #define REG_RESULT2 R3
80 #define REG_ITMP1 R1 /* temporary register */
81 #define REG_ITMP2 R12 /* temporary register and method pointer */
82 #define REG_ITMP3 R14 /* temporary register */
84 #define IS_REG_ITMP(x) (((x) == REG_ITMP1) || ((x) == REG_ITMP2) || ((x) == REG_ITMP3))
86 #define REG_ITMP12_PACKED PACK_REGS(REG_ITMP2, REG_ITMP1)
87 #define REG_ITMP23_PACKED PACK_REGS(REG_ITMP3, REG_ITMP2)
88 #define REG_RESULT_PACKED PACK_REGS(REG_RESULT2, REG_RESULT)
90 #define REG_METHODPTR REG_ITMP2/* pointer to the place from where the */
91 /* procedure vector has been fetched */
93 #define REG_NULL -1 /* used for reg_of_var where d is not needed */
95 #define REG_ITMP1_XPTR REG_ITMP1/* exception pointer = temporary register 1 */
96 #define REG_ITMP2_XPC REG_ITMP2/* exception pc = temporary register 2 */
98 #define REG_SP R15 /* stack pointer */
99 #define REG_RA R14 /* same as itmp3 */
103 #define REG_A0 R2 /* define some argument registers */
112 /* floating point registers */
114 #define REG_FRESULT F0 /* to deliver floating point method results */
116 #define REG_FTMP1 F4 /* temporary floating point register */
117 #define REG_FTMP2 F6 /* temporary floating point register */
121 #define INT_REG_CNT 16 /* number of integer registers */
122 #define INT_SAV_CNT 5 /* number of integer callee saved registers */
123 #define INT_ARG_CNT 5 /* number of integer argument registers */
124 #define INT_TMP_CNT 1 /* number of integer temporary registers */
125 #define INT_RES_CNT 5 /* number of integer reserved registers */
127 #define FLT_REG_CNT 16 /* number of float registers */
128 #define FLT_SAV_CNT 0 /* number of float callee saved registers */
129 #define FLT_ARG_CNT 2 /* number of float argument registers */
130 #define FLT_TMP_CNT 12 /* number of float temporary registers */
131 #define FLT_RES_CNT 2 /* number of float reserved registers */
133 #define TRACE_ARGS_NUM 8
135 #endif /* _MD_ABI_H */
139 * These are local overrides for various environment variables in Emacs.
140 * Please do not remove this and leave it at the end of the file, where
141 * Emacs will automagically detect them.
142 * ---------------------------------------------------------------------
145 * indent-tabs-mode: t