NetBSD/gnu/dist/sim/ppc/os_emul.h

61 lines
1.8 KiB
C

/* This file is part of the program psim.
Copyright (C) 1994-1995, 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 _OS_EMUL_H_
#define _OS_EMUL_H_
typedef struct _os_emul os_emul;
INLINE_OS_EMUL\
(os_emul *) os_emul_create
(const char *file_name,
device *root);
INLINE_OS_EMUL\
(void) os_emul_init
(os_emul *emulation,
int nr_cpus);
/* System-call emulation - for user code. Instead of trapping system
calls to kernel mode, the simulator emulates the kernels behavour */
INLINE_OS_EMUL\
(void) os_emul_system_call
(cpu *processor,
unsigned_word cia);
/* Instruction emulation - for kernel code. Extra (normally illegal)
instructions are added to the instruction table that when executed
call this emulation function. The instruction call emulator should
verify the address that the instruction appears before emulating
the required behavour. If the verification fails, a zero value
should be returned (indicating instruction illegal). */
INLINE_OS_EMUL\
(int) os_emul_instruction_call
(cpu *processor,
unsigned_word cia,
unsigned_word ra);
#endif