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105 lines
3.2 KiB
C
105 lines
3.2 KiB
C
/* cpu.h --- declarations for the RL78 core.
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Copyright (C) 2005-2024 Free Software Foundation, Inc.
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Contributed by Red Hat, Inc.
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This file is part of the GNU simulators.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef SIM_RL78_CPU_H_
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#define SIM_RL78_CPU_H_
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#include <stdint.h>
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#include <setjmp.h>
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#include "opcode/rl78.h"
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extern int verbose;
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extern int trace;
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typedef uint8_t QI;
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typedef uint16_t HI;
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typedef uint32_t SI;
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extern int rl78_in_gdb;
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SI get_reg (RL78_Register);
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SI set_reg (RL78_Register, SI);
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extern SI pc;
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extern const char * const reg_names[];
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void init_cpu (void);
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void set_flags (int mask, int newbits);
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void set_c (int);
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int get_c (void);
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const char *bits (int v, int b);
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int condition_true (RL78_Condition cond_id, int val);
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/* Instruction step return codes.
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Suppose one of the decode_* functions below returns a value R:
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- If RL78_STEPPED (R), then the single-step completed normally.
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- If RL78_HIT_BREAK (R), then the program hit a breakpoint.
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- If RL78_EXITED (R), then the program has done an 'exit' system
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call, and the exit code is RL78_EXIT_STATUS (R).
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- If RL78_STOPPED (R), then a signal (number RL78_STOP_SIG (R)) was
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generated.
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For building step return codes:
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- RL78_MAKE_STEPPED is the return code for finishing a normal step.
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- RL78_MAKE_HIT_BREAK is the return code for hitting a breakpoint.
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- RL78_MAKE_EXITED (C) is the return code for exiting with status C.
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- RL78_MAKE_STOPPED (S) is the return code for stopping on signal S. */
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#define RL78_MAKE_STEPPED() (1)
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#define RL78_MAKE_HIT_BREAK() (2)
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#define RL78_MAKE_EXITED(c) (((int) (c) << 8) + 3)
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#define RL78_MAKE_STOPPED(s) (((int) (s) << 8) + 4)
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#define RL78_STEPPED(r) ((r) == RL78_MAKE_STEPPED ())
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#define RL78_HIT_BREAK(r) ((r) == RL78_MAKE_HIT_BREAK ())
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#define RL78_EXITED(r) (((r) & 0xff) == 3)
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#define RL78_EXIT_STATUS(r) ((r) >> 8)
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#define RL78_STOPPED(r) (((r) & 0xff) == 4)
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#define RL78_STOP_SIG(r) ((r) >> 8)
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/* The step result for the current step. Global to allow
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communication between the stepping function and the system
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calls. */
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extern int step_result;
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extern int decode_opcode (void);
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extern int trace_register_words;
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extern void trace_register_changes (void);
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extern void generate_access_exception (void);
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extern jmp_buf decode_jmp_buf;
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extern long long total_clocks;
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extern int pending_clocks;
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extern int timer_enabled;
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extern void dump_counts_per_insn (const char * filename);
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extern unsigned int counts_per_insn[0x100000];
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extern int rl78_g10_mode;
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extern int g13_multiply;
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extern int g14_multiply;
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#endif
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