Genesis-Plus-GX/source/genesis.h

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2008-08-07 14:26:07 +02:00
/***************************************************************************************
* Genesis Plus 1.2a
* Genesis internals & Bus arbitration
*
* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Charles Mac Donald (original code)
* modified by Eke-Eke (compatibility fixes & additional code), GC/Wii port
*
* 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 _GENESIS_H_
#define _GENESIS_H_
/* Global variables */
extern uint8 *cart_rom;
extern uint8 bios_rom[0x800];
extern uint8 work_ram[0x10000];
extern uint8 zram[0x2000];
extern uint8 zbusreq;
extern uint8 zbusack;
extern uint8 zreset;
extern uint8 zirq;
extern uint32 zbank;
extern uint8 gen_running;
extern uint32 genromsize;
extern uint32 rom_size;
extern int32 resetline;
extern uint8 *rom_readmap[8];
/* Function prototypes */
extern void gen_init(void);
extern void gen_reset(unsigned int hard_reset);
extern void gen_shutdown(void);
extern unsigned int gen_busack_r(void);
extern void gen_busreq_w(unsigned int state);
extern void gen_reset_w(unsigned int state);
extern void gen_bank_w(unsigned int state);
extern int z80_irq_callback(int param);
extern void set_softreset(void);
#endif /* _GEN_H_ */