mega65.h

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/* A work-in-progess MEGA65 (Commodore-65 clone origins) emulator
   Part of the Xemu project, please visit: https://github.com/lgblgblgb/xemu
   Copyright (C)2016-2022 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_MEGA65_MEGA65_H_INCLUDED
#define XEMU_MEGA65_MEGA65_H_INCLUDED
 
// These file names used by the generic Xemu loader. That is, they are searched in
// different directories, ie, most notably, in rom/
// Real M65 would not expect to have eg the ROM, as it can be loaded from the SD-card,
// but it's not the case with Xemu, as you wouldn't have charset either without prior
// loading it (however hyppo HICKUP can overwrite "C65 ROM" anyway, later)
#define SDCARD_NAME             "@mega65.img"
 
#define NVRAM_FILE_NAME         "@nvram.bin"
#define UUID_FILE_NAME          "@uuid.bin"
 
// Used by updater, etc ... base name only, no path info!
#define MEGA65_ROM_NAME         "MEGA65.ROM"
#define MEGA65_ROM_SIZE         0x20000
#define CHAR_ROM_NAME           "CHARROM.M65"
#define CHAR_ROM_SIZE           0x1000
 
// Do *NOT* modify these, as other parts of the emulator currently depends on these values ...
#define TEXTURE_FORMAT          SDL_PIXELFORMAT_ARGB8888
#define USE_LOCKED_TEXTURE      1
#define RENDER_SCALE_QUALITY    0
 
#define C64_MHZ_CLOCK           1.0
#define C128_MHZ_CLOCK          2.0
#define C65_MHZ_CLOCK           3.5
// Default fast clock of M65, in MHz (can be overriden with CLI switch)
#define MEGA65_DEFAULT_FAST_CLOCK       40.5
 
#define SID_CYCLES_PER_SEC      1000000
#define AUDIO_SAMPLE_FREQ       44100
 
extern void m65mon_show_regs ( void );
extern void m65mon_dumpmem16 ( Uint16 addr );
extern void m65mon_dumpmem28 ( int addr );
extern void m65mon_setmem28  ( int addr, int cnt, Uint8* vals );
extern void m65mon_set_trace ( int m );
extern void m65mon_do_trace  ( void );
#ifdef TRACE_NEXT_SUPPORT
extern void m65mon_next_command ( void );
#endif
extern void m65mon_empty_command ( void );
extern void m65mon_do_trace_c ( void );
extern void m65mon_breakpoint ( int brk );
 
extern void machine_set_speed ( int verbose );
 
extern void reset_mega65      ( void );
extern int  reset_mega65_asked( void );
extern void reset_mega65_cpu_only ( void );
 
extern int  dump_memory       ( const char *fn );
 
extern int newhack;
extern int registered_screenshot_request;
extern Uint8 last_dd00_bits;
extern const char *last_reset_type;
extern int cpu_cycles_per_step;
extern const char *cpu_clock_speed_string;
 
#endif