/*

    3ds81 - Nintendo 3DS ZX81 emulator

    Copyright (C) 2021  Ian Cowburn (ianc@noddybox.co.uk)

    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 3 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, see <http://www.gnu.org/licenses/>

    -------------------------------------------------------------------------

    Provides the emulation for the ZX81

*/

#ifndef DS81_ZX81_H
#define DS81_ZX81_H

#include <stdio.h>

#include "framebuffer.h"
#include "z80.h"
#include "keyboard.h"


/* Initialise the ZX81
*/
void	ZX81Init(Z80 *z80);

/* Render the display
*/
void    ZX81RenderDisplay(Framebuffer *fb, Z80 *z80);

/* Handle keypresses
*/
void	ZX81HandleKey(SoftKey k, int is_pressed);

/* Enable fopen() loading of tape files
*/
void	ZX81EnableFileSystem(int enable);

/* Set a file to load from tape
*/
void	ZX81SetTape(const Z80Byte *image, int len);

/* Reset the 81
*/
void	ZX81Reset(Z80 *z80);

/* Tell the 81 that config may have changed.
*/
void	ZX81Reconfigure(void);

/* Interfaces for the Z80
*/
Z80Byte	ZX81ReadMem(Z80 *z80, Z80Word addr);
void	ZX81WriteMem(Z80 *z80, Z80Word addr, Z80Byte val);
Z80Byte	ZX81ReadPort(Z80 *z80, Z80Word port);
void	ZX81WritePort(Z80 *z80, Z80Word port, Z80Byte val);

#define	ZX81ReadDisassem ZX81ReadMem

/* Interfaces to allows the ZX81 to save/load itself as a snapshot to/from
   a stream.
*/
void	ZX81SaveSnapshot(FILE *fp);
void	ZX81LoadSnapshot(FILE *fp);

#endif


/* END OF FILE */