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/* cpu.h --- declarations for the RL78 core.
Copyright (C) 2005-2023 Free Software Foundation, Inc.
Contributed by Red Hat, Inc.
This file is part of the GNU simulators.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef SIM_RL78_CPU_H_
#define SIM_RL78_CPU_H_
#include <stdint.h>
#include <setjmp.h>
#include "opcode/rl78.h"
extern int verbose;
extern int trace;
typedef uint8_t QI;
typedef uint16_t HI;
typedef uint32_t SI;
extern int rl78_in_gdb;
SI get_reg (RL78_Register);
SI set_reg (RL78_Register, SI);
extern SI pc;
extern const char * const reg_names[];
void init_cpu (void);
void set_flags (int mask, int newbits);
void set_c (int);
int get_c (void);
const char *bits (int v, int b);
int condition_true (RL78_Condition cond_id, int val);
/* Instruction step return codes.
Suppose one of the decode_* functions below returns a value R:
- If RL78_STEPPED (R), then the single-step completed normally.
- If RL78_HIT_BREAK (R), then the program hit a breakpoint.
- If RL78_EXITED (R), then the program has done an 'exit' system
call, and the exit code is RL78_EXIT_STATUS (R).
- If RL78_STOPPED (R), then a signal (number RL78_STOP_SIG (R)) was
generated.
For building step return codes:
- RL78_MAKE_STEPPED is the return code for finishing a normal step.
- RL78_MAKE_HIT_BREAK is the return code for hitting a breakpoint.
- RL78_MAKE_EXITED (C) is the return code for exiting with status C.
- RL78_MAKE_STOPPED (S) is the return code for stopping on signal S. */
#define RL78_MAKE_STEPPED() (1)
#define RL78_MAKE_HIT_BREAK() (2)
#define RL78_MAKE_EXITED(c) (((int) (c) << 8) + 3)
#define RL78_MAKE_STOPPED(s) (((int) (s) << 8) + 4)
#define RL78_STEPPED(r) ((r) == RL78_MAKE_STEPPED ())
#define RL78_HIT_BREAK(r) ((r) == RL78_MAKE_HIT_BREAK ())
#define RL78_EXITED(r) (((r) & 0xff) == 3)
#define RL78_EXIT_STATUS(r) ((r) >> 8)
#define RL78_STOPPED(r) (((r) & 0xff) == 4)
#define RL78_STOP_SIG(r) ((r) >> 8)
/* The step result for the current step. Global to allow
communication between the stepping function and the system
calls. */
extern int step_result;
extern int decode_opcode (void);
extern int trace_register_words;
extern void trace_register_changes (void);
extern void generate_access_exception (void);
extern jmp_buf decode_jmp_buf;
extern long long total_clocks;
extern int pending_clocks;
extern int timer_enabled;
extern void dump_counts_per_insn (const char * filename);
extern unsigned int counts_per_insn[0x100000];
extern int rl78_g10_mode;
extern int g13_multiply;
extern int g14_multiply;
#endif
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