1 /* src/vm/jit/powerpc/linux/md-abi.h - defines for PowerPC Linux ABI
3 Copyright (C) 1996-2005, 2006, 2007 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 $Id: md-abi.h 8191 2007-07-08 15:15:53Z twisti $
33 /* preallocated registers *****************************************************/
35 /* integer registers */
37 #define REG_RESULT 3 /* to deliver method results */
38 #define REG_RESULT2 4 /* to deliver long method results */
40 #define REG_PV 13 /* procedure vector, must be provided by caller */
41 #define REG_METHODPTR 12 /* pointer to the place from where the procedure */
42 /* vector has been fetched */
43 #define REG_ITMP1 11 /* temporary register */
44 #define REG_ITMP2 12 /* temporary register and method pointer */
45 #define REG_ITMP3 16 /* temporary register */
47 #define REG_ITMP1_XPTR 11 /* exception pointer = temporary register 1 */
48 #define REG_ITMP2_XPC 12 /* exception pc = temporary register 2 */
50 #define REG_SP 1 /* stack pointer */
51 #define REG_ZERO 0 /* almost always zero: only in address calc. */
53 #define REG_A0 3 /* define some argument registers */
58 /* floating point registers */
60 #define REG_FRESULT 1 /* to deliver floating point method results */
61 #define REG_FTMP1 16 /* temporary floating point register */
62 #define REG_FTMP2 17 /* temporary floating point register */
63 #define REG_FTMP3 0 /* temporary floating point register */
65 #define REG_IFTMP 16 /* temporary integer and floating point register */
67 #define REG_FA0 1 /* define some argument registers */
71 #define INT_REG_CNT 32 /* number of integer registers */
72 #define INT_SAV_CNT 10 /* number of int callee saved registers */
73 #define INT_ARG_CNT 8 /* number of int argument registers */
74 #define INT_TMP_CNT 7 /* number of integer temporary registers */
75 #define INT_RES_CNT 7 /* number of integer reserved registers */
77 #define FLT_REG_CNT 32 /* number of float registers */
78 #define FLT_SAV_CNT 10 /* number of float callee saved registers */
79 #define FLT_ARG_CNT 8 /* number of float argument registers */
80 #define FLT_TMP_CNT 11 /* number of float temporary registers */
81 #define FLT_RES_CNT 3 /* number of float reserved registers */
83 #define TRACE_ARGS_NUM 4
86 /* packed register defines ****************************************************/
88 #define REG_RESULT_PACKED PACK_REGS(REG_RESULT2, REG_RESULT)
90 #define REG_A0_A1_PACKED PACK_REGS(REG_A1, REG_A0)
91 #define REG_A2_A3_PACKED PACK_REGS(REG_A3, REG_A2)
93 #define REG_ITMP12_PACKED PACK_REGS(REG_ITMP2, REG_ITMP1)
94 #define REG_ITMP23_PACKED PACK_REGS(REG_ITMP3, REG_ITMP2)
97 /* ABI defines ****************************************************************/
99 #define LA_SIZE 8 /* linkage area size */
100 #define LA_SIZE_ALIGNED 16 /* linkage area size aligned to 16-byte */
101 #define LA_SIZE_IN_POINTERS LA_SIZE / SIZEOF_VOID_P
103 #define LA_LR_OFFSET 4 /* link register offset in linkage area */
105 /* #define ALIGN_FRAME_SIZE(sp) (sp) */
107 #endif /* _MD_ABI_H */
111 * These are local overrides for various environment variables in Emacs.
112 * Please do not remove this and leave it at the end of the file, where
113 * Emacs will automagically detect them.
114 * ---------------------------------------------------------------------
117 * indent-tabs-mode: t