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+/* 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