vic3.h

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/* Test-case for a simple, work-in-progress Commodore 65 emulator.
   Part of the Xemu project, please visit: https://github.com/lgblgblgb/xemu
   Copyright (C)2016-2020 LGB (Gábor Lénárt) <lgblgblgb@gmail.com>
 
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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
 
#ifndef XEMU_C65_VIC3_H_INCLUDED
#define XEMU_C65_VIC3_H_INCLUDED
 
#define VIC_NEW_MODE 0x10
 
#define LEFT_BORDER_SIZE                32
#define RIGHT_BORDER_SIZE               32
#define TOP_BORDER_SIZE                 16
#define BOTTOM_BORDER_SIZE              16
 
#define SCREEN_WIDTH                    (640 + LEFT_BORDER_SIZE +  RIGHT_BORDER_SIZE)
#define SCREEN_HEIGHT                   (200 +  TOP_BORDER_SIZE + BOTTOM_BORDER_SIZE)
 
extern int   vic_new_mode;
extern Uint8 vic3_registers[];
extern int   cpu_cycles_per_scanline;
extern int   frameskip;
extern char  scanline_render_debug_info[320];
extern int   show_drive_led;
 
extern void  vic3_init ( void );
extern void  vic3_write_reg ( int addr, Uint8 data );
extern Uint8 vic3_read_reg ( int addr );
extern void  vic3_write_palette_reg ( int num, Uint8 data );
extern void  vic3_check_raster_interrupt ( void );
 
extern void  vic3_select_bank ( int bank );
extern void  vic3_open_frame_access ( void );
extern int   vic3_render_scanline ( void );
 
#ifdef XEMU_SNAPSHOT_SUPPORT
#include "xemu/emutools_snapshot.h"
extern int vic3_snapshot_load_state ( const struct xemu_snapshot_definition_st *def , struct xemu_snapshot_block_st *block );
extern int vic3_snapshot_save_state ( const struct xemu_snapshot_definition_st *def );
#endif
 
#endif