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- /* 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"
- #include "libiberty.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 uint64_t emul_read_gpr64
- (cpu *processor,
- int g);
- INLINE_EMUL_GENERIC void emul_write_gpr64
- (cpu *processor,
- int g,
- uint64_t val);
- INLINE_EMUL_GENERIC void emul_write_status
- (cpu *processor,
- int status,
- int err);
- INLINE_EMUL_GENERIC void emul_write2_status
- (cpu *processor,
- int status1,
- int status2,
- int err);
- 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_ */
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