1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/syscall.h	Tue Mar 14 11:44:29 2006 +0000
     1.3 @@ -0,0 +1,71 @@
     1.4 +/**
     1.5 + * $Id: syscall.h,v 1.1 2006-03-13 12:38:34 nkeynes Exp $
     1.6 + * 
     1.7 + * Generic syscall support - ability to add hooks into SH4 code to call out
     1.8 + * to the emu.
     1.9 + *
    1.10 + * Copyright (c) 2005 Nathan Keynes.
    1.11 + *
    1.12 + * This program is free software; you can redistribute it and/or modify
    1.13 + * it under the terms of the GNU General Public License as published by
    1.14 + * the Free Software Foundation; either version 2 of the License, or
    1.15 + * (at your option) any later version.
    1.16 + *
    1.17 + * This program is distributed in the hope that it will be useful,
    1.18 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
    1.19 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    1.20 + * GNU General Public License for more details.
    1.21 + */
    1.22 +#ifndef dream_syscall_H
    1.23 +#define dream_syscall_H 1
    1.24 +
    1.25 +#include <stdint.h>
    1.26 +#include <glib/gtypes.h>
    1.27 +
    1.28 +#ifdef __cplusplus
    1.29 +extern "C" {
    1.30 +#endif
    1.31 +
    1.32 +
    1.33 +typedef void (*syscall_hook_func_t)( uint32_t hook_id );
    1.34 +
    1.35 +
    1.36 +/**
    1.37 + * Define a new hook without an indirect vector
    1.38 + */
    1.39 +void syscall_add_hook( uint32_t hook_id, syscall_hook_func_t hook );
    1.40 +
    1.41 +/**
    1.42 + * Define a new hook which indirects through the specified vector address
    1.43 + * (which must be somewhere in main SH4 ram).
    1.44 + */
    1.45 +void syscall_add_hook_vector( uint32_t hook_id, uint32_t vector_addr,
    1.46 +			      syscall_hook_func_t hook );
    1.47 +
    1.48 +/**
    1.49 + * Invoke a syscall from the SH4
    1.50 + */
    1.51 +void syscall_invoke( uint32_t hook_id );
    1.52 +
    1.53 +/**
    1.54 + * Repatch all syscall vectors (eg in case of system reset)
    1.55 + */
    1.56 +void syscall_repatch_vectors( );
    1.57 +
    1.58 +/************************ Standard syscall hacks ************************/
    1.59 +
    1.60 +/**
    1.61 + * Install the BIOS emu hack into ram (sets the vectors at 8C0000B0 through 
    1.62 + * 8C0000C0)
    1.63 + */
    1.64 +void bios_install( void );
    1.65 +
    1.66 +/**
    1.67 + * Install the DCLoad syscall hack
    1.68 + */
    1.69 +void dcload_install( void );
    1.70 +
    1.71 +#ifdef __cplusplus
    1.72 +}
    1.73 +#endif
    1.74 +#endif