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/* This file is part of the program psim.
Copyright (C) 1994-1996, Andrew Cagney <>
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
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 <>.
#ifndef _PSIM_H_
#define _PSIM_H_
#include "basics.h"
#include "sim/sim.h"
/* the system object */
/* typedef struct _psim psim; */
/* typedef struct _device device; */
/* when the `system' stops, find out why. FIXME - at this point this
is really a bit puzzling. After all, how can there be a status
when there several processors involved */
typedef struct _psim_status {
int cpu_nr;
stop_reason reason;
int signal;
unsigned_word program_counter;
} psim_status;
/* create an initial device tree and then populate it using
information obtained from either the command line or a file */
extern device *psim_tree
extern char * const *psim_options
(device *root,
char * const *argv,
extern void psim_command
(device *root,
char * const *argv);
extern void psim_merge_device_file
(device *root,
const char *file_name);
extern void psim_usage
(int verbose, int help, SIM_OPEN_KIND kind);
/* create a new simulator from the device tree */
extern psim *psim_create
(const char *file_name,
device *root);
/* Given the created simulator (re) initialize it */
extern void psim_init
(psim *system);
extern void psim_stack
(psim *system,
char * const *argv,
char * const *envp);
/* Run/stop the system */
extern void psim_step
(psim *system);
extern void psim_run
(psim *system);
extern void psim_restart
(psim *system,
int cpu_nr);
extern void psim_set_halt_and_restart
(psim *system,
void *halt_jmp_buf,
void *restart_jmp_buf);
extern void psim_clear_halt_and_restart
(psim *system);
extern void psim_stop
(psim *system);
extern void psim_halt
(psim *system,
int cpu_nr,
stop_reason reason,
int signal);
extern int psim_last_cpu
(psim *system);
extern int psim_nr_cpus
(psim *system);
extern psim_status psim_get_status
(psim *system);
/* reveal the internals of the simulation. Grant access to the
processor (cpu) device tree (device) and events (event_queue). */
extern cpu *psim_cpu
(psim *system,
int cpu_nr);
extern device *psim_device
(psim *system,
const char *path);
extern event_queue *psim_event_queue
(psim *system);
/* Manipulate the state (registers or memory) of a processor within
the system. In the case of memory, the read/write is performed
using the specified processors address translation tables.
Where applicable, WHICH_CPU == -1 indicates all processors and
WHICH_CPU == <nr_cpus> indicates the `current' processor.
The register functions return the size of the register, or 0 if the
register's name is not recognized. */
extern int psim_read_register
(psim *system,
int which_cpu,
void *host_ordered_buf,
const char reg[],
transfer_mode mode);
extern int psim_write_register
(psim *system,
int which_cpu,
const void *buf,
const char reg[],
transfer_mode mode);
extern unsigned psim_read_memory
(psim *system,
int which_cpu,
void *buf,
unsigned_word vaddr,
unsigned len);
extern unsigned psim_write_memory
(psim *system,
int which_cpu,
const void *buf,
unsigned_word vaddr,
unsigned len,
int violate_read_only_section);
extern void psim_print_info
(psim *system,
int verbose);
#endif /* _PSIM_H_ */