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4f8d4a38 DD |
1 | /* mem.h --- interface to memory for M32C simulator. |
2 | ||
1d506c26 | 3 | Copyright (C) 2005-2024 Free Software Foundation, Inc. |
4f8d4a38 DD |
4 | Contributed by Red Hat, Inc. |
5 | ||
6 | This file is part of the GNU simulators. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 3 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU 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, see <http://www.gnu.org/licenses/>. */ | |
20 | ||
21 | enum mem_content_type { | |
22 | MC_UNINIT, | |
23 | MC_DATA, | |
24 | MC_PUSHED_PC, | |
25 | MC_NUM_TYPES | |
26 | }; | |
27 | ||
93378652 DD |
28 | enum mem_ptr_action |
29 | { | |
30 | MPA_WRITING, | |
31 | MPA_READING, | |
f9c7014e DD |
32 | MPA_CONTENT_TYPE, |
33 | MPA_DECODE_CACHE | |
93378652 DD |
34 | }; |
35 | ||
4f8d4a38 DD |
36 | void init_mem (void); |
37 | void mem_usage_stats (void); | |
38 | unsigned long mem_usage_cycles (void); | |
39 | ||
fd0975b9 MF |
40 | #undef PAGE_SIZE /* Cleanup system headers. */ |
41 | ||
93378652 DD |
42 | /* rx_mem_ptr returns a pointer which is valid as long as the address |
43 | requested remains within the same page. */ | |
44 | #define PAGE_BITS 12 | |
45 | #define PAGE_SIZE (1 << PAGE_BITS) | |
46 | #define NONPAGE_MASK (~(PAGE_SIZE-1)) | |
47 | ||
48 | unsigned char *rx_mem_ptr (unsigned long address, enum mem_ptr_action action); | |
f9c7014e DD |
49 | #ifdef RXC_never |
50 | RX_Opcode_Decoded **rx_mem_decode_cache (unsigned long address); | |
51 | #endif | |
93378652 | 52 | |
4f8d4a38 DD |
53 | void mem_put_qi (int address, unsigned char value); |
54 | void mem_put_hi (int address, unsigned short value); | |
55 | void mem_put_psi (int address, unsigned long value); | |
56 | void mem_put_si (int address, unsigned long value); | |
57 | ||
da9ecd60 | 58 | void mem_put_blk (int address, void *bufptr_void, int nbytes); |
4f8d4a38 DD |
59 | |
60 | unsigned char mem_get_pc (int address); | |
61 | ||
62 | unsigned char mem_get_qi (int address); | |
63 | unsigned short mem_get_hi (int address); | |
64 | unsigned long mem_get_psi (int address); | |
65 | unsigned long mem_get_si (int address); | |
66 | ||
da9ecd60 | 67 | void mem_get_blk (int address, void *bufptr_void, int nbytes); |
4f8d4a38 DD |
68 | |
69 | int sign_ext (int v, int bits); | |
70 | ||
71 | void mem_set_content_type (int address, enum mem_content_type type); | |
72 | void mem_set_content_range (int start_address, int end_address, enum mem_content_type type); | |
73 | enum mem_content_type mem_get_content_type (int address); |