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https://git.code.sf.net/p/fuse-emulator/fuse
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47 lines
1.4 KiB
C
47 lines
1.4 KiB
C
/* ay.h: AY-3-8912 routines
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Copyright (c) 1999-2016 Philip Kendall
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Copyright (c) 2015 Stuart Brady
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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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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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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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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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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 along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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Author contact information:
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E-mail: philip-fuse@shadowmagic.org.uk
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*/
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#ifndef FUSE_AY_H
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#define FUSE_AY_H
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#include <libspectrum.h>
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#define AY_REGISTERS 16
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typedef struct ayinfo {
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int current_register;
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libspectrum_byte registers[ AY_REGISTERS ];
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} ayinfo;
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void ay_register_startup( void );
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libspectrum_byte ay_registerport_read( libspectrum_word port, libspectrum_byte *attached );
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void ay_registerport_write( libspectrum_word port, libspectrum_byte b );
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void ay_dataport_write( libspectrum_word port, libspectrum_byte b );
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void ay_state_from_snapshot( libspectrum_snap *snap );
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#endif /* #ifndef FUSE_AY_H */
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