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87326c78 DD |
1 | /* cpu.h --- declarations for the RL78 core. |
2 | ||
c5a57081 | 3 | Copyright (C) 2005, 2007-2012 Free Software Foundation, Inc. |
87326c78 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 | ||
22 | #ifndef SIM_RL78_CPU_H_ | |
23 | #define SIM_RL78_CPU_H_ | |
24 | ||
25 | #include <stdint.h> | |
26 | #include <setjmp.h> | |
27 | ||
28 | #include "opcode/rl78.h" | |
29 | ||
30 | extern int verbose; | |
31 | extern int trace; | |
32 | ||
33 | typedef uint8_t QI; | |
34 | typedef uint16_t HI; | |
35 | typedef uint32_t SI; | |
36 | ||
37 | extern int rl78_in_gdb; | |
38 | ||
39 | SI get_reg (RL78_Register); | |
40 | SI set_reg (RL78_Register, SI); | |
41 | ||
42 | SI pc; | |
43 | ||
44 | ||
45 | extern const char * const reg_names[]; | |
46 | ||
47 | void init_cpu (void); | |
48 | void set_flags (int mask, int newbits); | |
49 | void set_c (int c); | |
50 | int get_c (void); | |
51 | ||
52 | const char *bits (int v, int b); | |
53 | ||
54 | int condition_true (RL78_Condition cond_id, int val); | |
55 | ||
56 | /* Instruction step return codes. | |
57 | Suppose one of the decode_* functions below returns a value R: | |
58 | - If RL78_STEPPED (R), then the single-step completed normally. | |
59 | - If RL78_HIT_BREAK (R), then the program hit a breakpoint. | |
60 | - If RL78_EXITED (R), then the program has done an 'exit' system | |
61 | call, and the exit code is RL78_EXIT_STATUS (R). | |
62 | - If RL78_STOPPED (R), then a signal (number RL78_STOP_SIG (R)) was | |
63 | generated. | |
64 | ||
65 | For building step return codes: | |
66 | - RL78_MAKE_STEPPED is the return code for finishing a normal step. | |
67 | - RL78_MAKE_HIT_BREAK is the return code for hitting a breakpoint. | |
68 | - RL78_MAKE_EXITED (C) is the return code for exiting with status C. | |
69 | - RL78_MAKE_STOPPED (S) is the return code for stopping on signal S. */ | |
70 | #define RL78_MAKE_STEPPED() (1) | |
71 | #define RL78_MAKE_HIT_BREAK() (2) | |
72 | #define RL78_MAKE_EXITED(c) (((int) (c) << 8) + 3) | |
73 | #define RL78_MAKE_STOPPED(s) (((int) (s) << 8) + 4) | |
74 | ||
75 | #define RL78_STEPPED(r) ((r) == RL78_MAKE_STEPPED ()) | |
76 | #define RL78_HIT_BREAK(r) ((r) == RL78_MAKE_HIT_BREAK ()) | |
77 | #define RL78_EXITED(r) (((r) & 0xff) == 3) | |
78 | #define RL78_EXIT_STATUS(r) ((r) >> 8) | |
79 | #define RL78_STOPPED(r) (((r) & 0xff) == 4) | |
80 | #define RL78_STOP_SIG(r) ((r) >> 8) | |
81 | ||
82 | /* The step result for the current step. Global to allow | |
83 | communication between the stepping function and the system | |
84 | calls. */ | |
85 | extern int step_result; | |
86 | ||
87 | extern int decode_opcode (void); | |
88 | ||
89 | extern int trace_register_words; | |
90 | extern void trace_register_changes (void); | |
91 | extern void generate_access_exception (void); | |
92 | extern jmp_buf decode_jmp_buf; | |
93 | ||
94 | extern long long total_clocks; | |
95 | extern int pending_clocks; | |
96 | extern int timer_enabled; | |
97 | extern void dump_counts_per_insn (const char * filename); | |
98 | extern unsigned int counts_per_insn[0x100000]; | |
99 | ||
100 | #endif |