/* This file is part of the program psim.
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/* This file is part of the program psim.
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Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
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Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
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This program is free software; you can redistribute it and/or modify
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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*/
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#ifndef _OS_EMUL_H_
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#ifndef _OS_EMUL_H_
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#define _OS_EMUL_H_
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#define _OS_EMUL_H_
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typedef struct _os_emul os_emul;
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typedef struct _os_emul os_emul;
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INLINE_OS_EMUL\
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INLINE_OS_EMUL\
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(os_emul *) os_emul_create
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(os_emul *) os_emul_create
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(const char *file_name,
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(const char *file_name,
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device *root);
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device *root);
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INLINE_OS_EMUL\
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INLINE_OS_EMUL\
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(void) os_emul_init
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(void) os_emul_init
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(os_emul *emulation,
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(os_emul *emulation,
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int nr_cpus);
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int nr_cpus);
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/* System-call emulation - for user code. Instead of trapping system
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/* System-call emulation - for user code. Instead of trapping system
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calls to kernel mode, the simulator emulates the kernels behavour */
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calls to kernel mode, the simulator emulates the kernels behavour */
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INLINE_OS_EMUL\
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INLINE_OS_EMUL\
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(void) os_emul_system_call
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(void) os_emul_system_call
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(cpu *processor,
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(cpu *processor,
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unsigned_word cia);
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unsigned_word cia);
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/* Instruction emulation - for kernel code. Extra (normally illegal)
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/* Instruction emulation - for kernel code. Extra (normally illegal)
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instructions are added to the instruction table that when executed
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instructions are added to the instruction table that when executed
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call this emulation function. The instruction call emulator should
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call this emulation function. The instruction call emulator should
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verify the address that the instruction appears before emulating
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verify the address that the instruction appears before emulating
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the required behavour. If the verification fails, a zero value
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the required behavour. If the verification fails, a zero value
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should be returned (indicating instruction illegal). */
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should be returned (indicating instruction illegal). */
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INLINE_OS_EMUL\
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INLINE_OS_EMUL\
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(int) os_emul_instruction_call
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(int) os_emul_instruction_call
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(cpu *processor,
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(cpu *processor,
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unsigned_word cia,
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unsigned_word cia,
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unsigned_word ra);
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unsigned_word ra);
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#endif
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#endif
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