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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-6.8/] [sim/] [ppc/] [emul_generic.h] - Rev 507
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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 2 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, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #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_ */
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