rzx.h

/* rzx.h: .rzx files
   Copyright (c) 2002-2016 Philip Kendall

   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_RZX_H
#define FUSE_RZX_H

#include <libspectrum.h>

// The offset used to get the count of instructions from the R register
extern int rzx_instructions_offset;

// The number of bytes read via IN during the current frame
extern size_t rzx_in_count;

// And the values of those bytes
extern libspectrum_byte *rzx_in_bytes;

// How big is the above array?
extern size_t rzx_in_allocated;

// Are we currently recording a .rzx file?
extern int rzx_recording;

// Are we currently playing back a .rzx file?
extern int rzx_playback;

// Is the .rzx file being recorded in competition mode?
extern int rzx_competition_mode;

// The number of instructions in the current .rzx playback frame
extern size_t rzx_instruction_count;

// The actual RZX data
extern libspectrum_rzx *rzx;

void rzx_register_startup(void);

int rzx_start_recording(const char *filename, int embed_snapshot);
int rzx_stop_recording(void);
int rzx_continue_recording(const char *filename);
int rzx_finalise_recording(const char *filename);

int rzx_start_playback(const char *filename, int check_snapshot);

int rzx_start_playback_from_buffer(const unsigned char *buffer, size_t length);

int rzx_stop_playback(int add_interrupt);

int rzx_frame(void);

int rzx_store_byte(libspectrum_byte value);

int rzx_rollback(void);

int rzx_rollback_to(void);

#endif // #ifndef FUSE_RZX_H