178 lines
4.0 KiB
C
178 lines
4.0 KiB
C
/* This file is part of the program psim.
|
|
|
|
Copyright (C) 1994-1996, Andrew Cagney <cagney@highland.com.au>
|
|
|
|
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 _EMUL_GENERIC_H_
|
|
#define _EMUL_GENERIC_H_
|
|
|
|
#include "cpu.h"
|
|
#include "idecode.h"
|
|
#include "os_emul.h"
|
|
|
|
#include "tree.h"
|
|
|
|
#include "bfd.h"
|
|
|
|
#ifndef INLINE_EMUL_GENERIC
|
|
#define INLINE_EMUL_GENERIC
|
|
#endif
|
|
|
|
/* various PowerPC instructions for writing into memory */
|
|
enum {
|
|
emul_call_instruction = 0x1,
|
|
emul_loop_instruction = 0x48000000, /* branch to . */
|
|
emul_rfi_instruction = 0x4c000064,
|
|
emul_blr_instruction = 0x4e800020,
|
|
};
|
|
|
|
|
|
/* emulation specific data */
|
|
|
|
typedef struct _os_emul_data os_emul_data;
|
|
|
|
typedef os_emul_data *(os_emul_create_handler)
|
|
(device *tree,
|
|
bfd *image,
|
|
const char *emul_name);
|
|
typedef void (os_emul_init_handler)
|
|
(os_emul_data *emul_data,
|
|
int nr_cpus);
|
|
typedef void (os_emul_system_call_handler)
|
|
(cpu *processor,
|
|
unsigned_word cia,
|
|
os_emul_data *emul_data);
|
|
typedef int (os_emul_instruction_call_handler)
|
|
(cpu *processor,
|
|
unsigned_word cia,
|
|
unsigned_word ra,
|
|
os_emul_data *emul_data);
|
|
|
|
struct _os_emul {
|
|
const char *name;
|
|
os_emul_create_handler *create;
|
|
os_emul_init_handler *init;
|
|
os_emul_system_call_handler *system_call;
|
|
os_emul_instruction_call_handler *instruction_call;
|
|
os_emul_data *data;
|
|
};
|
|
|
|
|
|
/* One class of emulation - system call is pretty general, provide a
|
|
common template for implementing this */
|
|
|
|
typedef struct _emul_syscall emul_syscall;
|
|
typedef struct _emul_syscall_descriptor emul_syscall_descriptor;
|
|
|
|
typedef void (emul_syscall_handler)
|
|
(os_emul_data *emul_data,
|
|
unsigned call,
|
|
const int arg0,
|
|
cpu *processor,
|
|
unsigned_word cia);
|
|
|
|
struct _emul_syscall_descriptor {
|
|
emul_syscall_handler *handler;
|
|
const char *name;
|
|
};
|
|
|
|
struct _emul_syscall {
|
|
emul_syscall_descriptor *syscall_descriptor;
|
|
int nr_system_calls;
|
|
char **error_names;
|
|
int nr_error_names;
|
|
char **signal_names;
|
|
int nr_signal_names;
|
|
};
|
|
|
|
|
|
INLINE_EMUL_GENERIC void emul_do_system_call
|
|
(os_emul_data *emul_data,
|
|
emul_syscall *syscall,
|
|
unsigned call,
|
|
const int arg0,
|
|
cpu *processor,
|
|
unsigned_word cia);
|
|
|
|
|
|
INLINE_EMUL_GENERIC unsigned64 emul_read_gpr64
|
|
(cpu *processor,
|
|
int g);
|
|
|
|
INLINE_EMUL_GENERIC void emul_write_gpr64
|
|
(cpu *processor,
|
|
int g,
|
|
unsigned64 val);
|
|
|
|
INLINE_EMUL_GENERIC void emul_write_status
|
|
(cpu *processor,
|
|
int status,
|
|
int errno);
|
|
|
|
INLINE_EMUL_GENERIC void emul_write2_status
|
|
(cpu *processor,
|
|
int status1,
|
|
int status2,
|
|
int errno);
|
|
|
|
INLINE_EMUL_GENERIC char *emul_read_string
|
|
(char *dest,
|
|
unsigned_word addr,
|
|
unsigned nr_bytes,
|
|
cpu *processor,
|
|
unsigned_word cia);
|
|
|
|
INLINE_EMUL_GENERIC unsigned_word emul_read_word
|
|
(unsigned_word addr,
|
|
cpu *processor,
|
|
unsigned_word cia);
|
|
|
|
INLINE_EMUL_GENERIC void emul_write_word
|
|
(unsigned_word addr,
|
|
unsigned_word buf,
|
|
cpu *processor,
|
|
unsigned_word cia);
|
|
|
|
INLINE_EMUL_GENERIC void emul_read_buffer
|
|
(void *dest,
|
|
unsigned_word addr,
|
|
unsigned nr_bytes,
|
|
cpu *processor,
|
|
unsigned_word cia);
|
|
|
|
INLINE_EMUL_GENERIC void emul_write_buffer
|
|
(const void *source,
|
|
unsigned_word addr,
|
|
unsigned nr_bytes,
|
|
cpu *processor,
|
|
unsigned_word cia);
|
|
|
|
/* Simplify the construction of device trees */
|
|
|
|
INLINE_EMUL_GENERIC void emul_add_tree_options
|
|
(device *tree,
|
|
bfd *image,
|
|
const char *emul,
|
|
const char *env,
|
|
int oea_interrupt_prefix);
|
|
|
|
INLINE_EMUL_GENERIC void emul_add_tree_hardware
|
|
(device *tree);
|
|
|
|
#endif /* _EMUL_GENERIC_H_ */
|