CACAO
md-abi.hpp
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1 /* src/vm/jit/alpha/md-abi.hpp - defines for Alpha ABI
2 
3  Copyright (C) 1996-2013
4  CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
5 
6  This file is part of CACAO.
7 
8  This program is free software; you can redistribute it and/or
9  modify it under the terms of the GNU General Public License as
10  published by the Free Software Foundation; either version 2, or (at
11  your option) any later version.
12 
13  This program is distributed in the hope that it will be useful, but
14  WITHOUT ANY WARRANTY; without even the implied warranty of
15  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  General Public License for more details.
17 
18  You should have received a copy of the GNU General Public License
19  along with this program; if not, write to the Free Software
20  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
21  02110-1301, USA.
22 
23 */
24 
25 
26 #ifndef MD_ABI_HPP_
27 #define MD_ABI_HPP_ 1
28 
29 /* preallocated registers *****************************************************/
30 
31 /* integer registers */
32 
33 #define REG_RESULT 0 /* to deliver method results */
34 
35 #define REG_A0 16 /* define some argument registers */
36 #define REG_A1 17
37 #define REG_A2 18
38 #define REG_A3 19
39 
40 #define REG_RA 26 /* return address */
41 #define REG_PV 27 /* procedure vector, must be provided by caller */
42 #define REG_METHODPTR 28 /* pointer to the place from where the procedure */
43  /* vector has been fetched */
44 #define REG_ITMP1 25 /* temporary register */
45 #define REG_ITMP2 28 /* temporary register and method pointer */
46 #define REG_ITMP3 29 /* temporary register */
47 
48 #define REG_ITMP1_XPTR 25 /* exception pointer = temporary register 1 */
49 #define REG_ITMP2_XPC 28 /* exception pc = temporary register 2 */
50 
51 #define REG_SP 30 /* stack pointer */
52 #define REG_ZERO 31 /* always zero */
53 
54 
55 /* floating point registers */
56 
57 #define REG_FRESULT 0 /* to deliver floating point method results */
58 
59 #define REG_FA0 16 /* define some argument registers */
60 #define REG_FA1 17
61 #define REG_FA2 18
62 
63 #define REG_FTMP1 28 /* temporary floating point register */
64 #define REG_FTMP2 29 /* temporary floating point register */
65 #define REG_FTMP3 30 /* temporary floating point register */
66 
67 #define REG_IFTMP 28 /* temporary integer and floating point register */
68 
69 
70 #define INT_REG_CNT 32 /* number of integer registers */
71 #define INT_SAV_CNT 7 /* number of int callee saved registers */
72 #define INT_ARG_CNT 6 /* number of int argument registers */
73 #define INT_TMP_CNT 11 /* number of int temp registers */
74 #define INT_RES_CNT 7 /* number of reserved integer registers */
75  /* the one "missing" register is the return reg */
76 
77 #define FLT_REG_CNT 32 /* number of float registers */
78 #define FLT_SAV_CNT 8 /* number of flt callee saved registers */
79 #define FLT_ARG_CNT 6 /* number of flt argument registers */
80 #define FLT_TMP_CNT 13 /* number of flt temp registers */
81 #define FLT_RES_CNT 4 /* number of reserved float registers */
82  /* the one "missing" register is the return reg */
83 
84 #endif // MD_ABI_HPP_
85 
86 
87 /*
88  * These are local overrides for various environment variables in Emacs.
89  * Please do not remove this and leave it at the end of the file, where
90  * Emacs will automagically detect them.
91  * ---------------------------------------------------------------------
92  * Local variables:
93  * mode: c++
94  * indent-tabs-mode: t
95  * c-basic-offset: 4
96  * tab-width: 4
97  * End:
98  */
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