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https://git.code.sf.net/p/fuse-emulator/fuse
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48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
/* ay.h: AY-8-3912 routines
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Copyright (c) 1999-2004 Philip Kendall
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$Id$
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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
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Author contact information:
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E-mail: pak21-fuse@srcf.ucam.org
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Postal address: 15 Crescent Road, Wokingham, Berks, RG40 2DB, England
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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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libspectrum_byte ay_registerport_read( libspectrum_word port, int *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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int ay_from_snapshot( libspectrum_snap *snap, int capabilities );
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int ay_to_snapshot( libspectrum_snap *snap );
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#endif /* #ifndef FUSE_AY_H */
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