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/* ay.h: AY-3-8912 routines
Copyright (c) 1999-2016 Philip Kendall
Copyright (c) 2015 Stuart Brady
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.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Author contact information:
E-mail: philip-fuse@shadowmagic.org.uk
*/
#ifndef FUSE_AY_H
#define FUSE_AY_H
#include <libspectrum.h>
#define AY_REGISTERS 16
typedef struct ayinfo {
int current_register;
libspectrum_byte registers[ AY_REGISTERS ];
} ayinfo;
void ay_register_startup( void );
libspectrum_byte ay_registerport_read( libspectrum_word port, libspectrum_byte *attached );
void ay_registerport_write( libspectrum_word port, libspectrum_byte b );
void ay_dataport_write( libspectrum_word port, libspectrum_byte b );
void ay_state_from_snapshot( libspectrum_snap *snap );
#endif /* #ifndef FUSE_AY_H */
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