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c906108c SS |
1 | /* This file is part of the program psim. |
2 | ||
3 | Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au> | |
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 _OS_EMUL_H_ | |
23 | #define _OS_EMUL_H_ | |
24 | ||
25 | typedef struct _os_emul os_emul; | |
26 | ||
27 | INLINE_OS_EMUL\ | |
28 | (os_emul *) os_emul_create | |
29 | (const char *file_name, | |
30 | device *root); | |
31 | ||
32 | INLINE_OS_EMUL\ | |
33 | (void) os_emul_init | |
34 | (os_emul *emulation, | |
35 | int nr_cpus); | |
36 | ||
37 | ||
38 | /* System-call emulation - for user code. Instead of trapping system | |
39 | calls to kernel mode, the simulator emulates the kernels behavour */ | |
40 | ||
41 | INLINE_OS_EMUL\ | |
42 | (void) os_emul_system_call | |
43 | (cpu *processor, | |
44 | unsigned_word cia); | |
45 | ||
46 | ||
47 | /* Instruction emulation - for kernel code. Extra (normally illegal) | |
48 | instructions are added to the instruction table that when executed | |
49 | call this emulation function. The instruction call emulator should | |
50 | verify the address that the instruction appears before emulating | |
51 | the required behavour. If the verification fails, a zero value | |
52 | should be returned (indicating instruction illegal). */ | |
53 | ||
54 | INLINE_OS_EMUL\ | |
55 | (int) os_emul_instruction_call | |
56 | (cpu *processor, | |
57 | unsigned_word cia, | |
58 | unsigned_word ra); | |
59 | ||
60 | #endif |