--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/syscall.h	Sat May 20 02:40:16 2006 +0000
@@ -0,0 +1,71 @@
+/**
+ * $Id: syscall.h,v 1.1 2006-03-13 12:38:34 nkeynes Exp $
+ * 
+ * Generic syscall support - ability to add hooks into SH4 code to call out
+ * to the emu.
+ *
+ * Copyright (c) 2005 Nathan Keynes.
+ *
+ * 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.
+ */
+#ifndef dream_syscall_H
+#define dream_syscall_H 1
+
+#include <stdint.h>
+#include <glib/gtypes.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+typedef void (*syscall_hook_func_t)( uint32_t hook_id );
+
+
+/**
+ * Define a new hook without an indirect vector
+ */
+void syscall_add_hook( uint32_t hook_id, syscall_hook_func_t hook );
+
+/**
+ * Define a new hook which indirects through the specified vector address
+ * (which must be somewhere in main SH4 ram).
+ */
+void syscall_add_hook_vector( uint32_t hook_id, uint32_t vector_addr,
+			      syscall_hook_func_t hook );
+
+/**
+ * Invoke a syscall from the SH4
+ */
+void syscall_invoke( uint32_t hook_id );
+
+/**
+ * Repatch all syscall vectors (eg in case of system reset)
+ */
+void syscall_repatch_vectors( );
+
+/************************ Standard syscall hacks ************************/
+
+/**
+ * Install the BIOS emu hack into ram (sets the vectors at 8C0000B0 through 
+ * 8C0000C0)
+ */
+void bios_install( void );
+
+/**
+ * Install the DCLoad syscall hack
+ */
+void dcload_install( void );
+
+#ifdef __cplusplus
+}
+#endif
+#endif