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Add PowerPC simulator from Andrew Cagney <[email protected]>
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1 /*  This file is part of the program psim.
2
3     Copyright (C) 1994-1995, Andrew Cagney <[email protected]>
4
5     This program is free software; you can redistribute it and/or modify
6     it under the terms of the GNU General Public License as published by
7     the Free Software Foundation; either version 2 of the License, or
8     (at your option) any later version.
9
10     This program is distributed in the hope that it will be useful,
11     but WITHOUT ANY WARRANTY; without even the implied warranty of
12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13     GNU General Public License for more details.
14  
15     You should have received a copy of the GNU General Public License
16     along with this program; if not, write to the Free Software
17     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18  
19     */
20
21
22 #ifndef _VM_H_
23 #define _VM_H_
24
25 #ifndef INLINE_VM
26 #define INLINE_VM
27 #endif
28
29 typedef struct _vm vm;
30 typedef struct _vm_data_map vm_data_map;
31 typedef struct _vm_instruction_map vm_instruction_map;
32
33
34 /* each PowerPC requires two virtual memory maps */
35
36 INLINE_VM vm *vm_create
37 (core *memory);
38
39 INLINE_VM vm_data_map *vm_create_data_map
40 (vm *memory);
41
42 INLINE_VM vm_instruction_map *vm_create_instruction_map
43 (vm *memory);
44
45
46 /* address translation, if the translation is invalid
47    these will not return */
48
49 INLINE_VM unsigned_word vm_real_data_addr
50 (vm_data_map *data_map,
51  unsigned_word ea,
52  int is_read,
53  cpu *processor,
54  unsigned_word cia);
55
56 INLINE_VM unsigned_word vm_real_instruction_addr
57 (vm_instruction_map *instruction_map,
58  cpu *processor,
59  unsigned_word cia);
60
61
62 /* block transfers */
63
64 INLINE_VM int vm_data_map_read_buffer
65 (vm_data_map *data_map,
66  void *target,
67  unsigned_word addr,
68  unsigned len,
69  transfer_mode mode);
70
71 INLINE_VM int vm_data_map_write_buffer
72 (vm_data_map *data_map,
73  const void *source,
74  unsigned_word addr,
75  unsigned len,
76  transfer_mode mode,
77  int violate_read_only_section);
78
79
80 /* fetch the next instruction from memory */
81
82 INLINE_VM instruction_word vm_instruction_map_read
83 (vm_instruction_map *instruction_map,
84  cpu *processor,
85  unsigned_word cia);
86
87
88 /* read data from memory */
89
90 #define DECLARE_VM_DATA_MAP_READ_N(N) \
91 INLINE_VM unsigned_##N vm_data_map_read_##N \
92 (vm_data_map *map, \
93  unsigned_word ea, \
94  cpu *processor, \
95  unsigned_word cia);
96
97 DECLARE_VM_DATA_MAP_READ_N(1)
98 DECLARE_VM_DATA_MAP_READ_N(2)
99 DECLARE_VM_DATA_MAP_READ_N(4)
100 DECLARE_VM_DATA_MAP_READ_N(8)
101
102
103 /* write data to memory */
104
105 #define DECLARE_VM_DATA_MAP_WRITE_N(N) \
106 INLINE_VM void vm_data_map_write_##N \
107 (vm_data_map *map, \
108  unsigned_word addr, \
109  unsigned_##N val, \
110  cpu *processor, \
111  unsigned_word cia);
112
113 DECLARE_VM_DATA_MAP_WRITE_N(1)
114 DECLARE_VM_DATA_MAP_WRITE_N(2)
115 DECLARE_VM_DATA_MAP_WRITE_N(4)
116 DECLARE_VM_DATA_MAP_WRITE_N(8)
117
118
119 /* update vm data structures due to a synchronization point */
120
121 INLINE_VM void vm_synchronize_context
122 (vm *memory,
123  spreg *sprs,
124  sreg *srs,
125  msreg msr);
126
127 #endif
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