| 1 | /* cpu.h --- declarations for the RL78 core. |
| 2 | |
| 3 | Copyright (C) 2005-2015 Free Software Foundation, Inc. |
| 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); |
| 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 | extern int rl78_g10_mode; |
| 101 | extern int g13_multiply; |
| 102 | extern int g14_multiply; |
| 103 | |
| 104 | #endif |