1 /* src/vm/jit/i386/md-abi.h - defines for i386 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 /* preallocated registers *****************************************************/
39 /* integer registers */
41 #define REG_RESULT EAX /* to deliver method results */
42 #define REG_RESULT2 EDX /* to deliver long method results */
44 #define REG_ITMP1 EAX /* temporary register */
45 #define REG_ITMP2 ECX /* temporary register */
46 #define REG_ITMP3 EDX /* temporary register */
48 #define REG_METHODPTR REG_ITMP2/* pointer to the place from where the */
49 /* procedure vector has been fetched */
51 #define REG_NULL -1 /* used for reg_of_var where d is not needed */
53 #define REG_ITMP1_XPTR EAX /* exception pointer = temporary register 1 */
54 #define REG_ITMP2_XPC ECX /* exception pc = temporary register 2 */
56 #define REG_SP ESP /* stack pointer */
58 /* floating point registers */
60 #define REG_FRESULT 0 /* to deliver floating point method results */
61 #define REG_FTMP1 6 /* temporary floating point register */
62 #define REG_FTMP2 7 /* temporary floating point register */
63 #define REG_FTMP3 7 /* temporary floating point register */
66 #define INT_REG_CNT 8 /* number of integer registers */
67 #define INT_SAV_CNT 3 /* number of integer callee saved registers */
68 #define INT_ARG_CNT 0 /* number of integer argument registers */
69 #define INT_TMP_CNT 1 /* number of integer temporary registers */
70 #define INT_RES_CNT 3 /* numebr of integer reserved registers */
72 #define FLT_REG_CNT 8 /* number of float registers */
73 #define FLT_SAV_CNT 0 /* number of float callee saved registers */
74 #define FLT_ARG_CNT 0 /* number of float argument registers */
75 #define FLT_TMP_CNT 0 /* number of float temporary registers */
76 #define FLT_RES_CNT 8 /* numebr of float reserved registers */
78 #define TRACE_ARGS_NUM 8
80 #define REG_RES_CNT 3 /* number of reserved registers */
83 /* packed register defines ****************************************************/
85 #define REG_ITMP12_PACKED PACK_REGS(REG_ITMP1, REG_ITMP2)
86 #define REG_ITMP13_PACKED PACK_REGS(REG_ITMP1, REG_ITMP3)
87 #define REG_ITMP23_PACKED PACK_REGS(REG_ITMP2, REG_ITMP3)
89 #define REG_RESULT_PACKED PACK_REGS(REG_RESULT, REG_RESULT2)
91 #define EAX_EDX_PACKED PACK_REGS(EAX, EDX)
93 #endif /* _MD_ABI_H */
97 * These are local overrides for various environment variables in Emacs.
98 * Please do not remove this and leave it at the end of the file, where
99 * Emacs will automagically detect them.
100 * ---------------------------------------------------------------------
103 * indent-tabs-mode: t