mirror of
https://github.com/ekeeke/Genesis-Plus-GX.git
synced 2024-11-10 12:55:08 +01:00
8af85558d0
.added YM2413 context to Master System savestates .removed support for older savestates format (1.3.x, 1.4.x), use 1.5.0 to convert old savestates to new (1.5.x) format
76 lines
3.0 KiB
C
76 lines
3.0 KiB
C
/****************************************************************************
|
|
* Genesis Plus
|
|
* Mega Drive cartridge hardware support
|
|
*
|
|
* Copyright (C) 2007-2011 Eke-Eke (GCN/Wii port)
|
|
*
|
|
* Lots of protection mechanism have been discovered by Haze
|
|
* (http://haze.mameworld.info/)
|
|
*
|
|
* Realtec mapper has been figured out by TascoDeluxe
|
|
*
|
|
* 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 _MD_CART_H_
|
|
#define _MD_CART_H_
|
|
|
|
/* Lock-On cartridge type */
|
|
#define TYPE_GG 0x01 /* Game Genie */
|
|
#define TYPE_AR 0x02 /* (Pro) Action Replay */
|
|
#define TYPE_SK 0x03 /* Sonic & Knuckles */
|
|
|
|
/* Special hardware (0x01 reserved for SMS 3-D glasses) */
|
|
#define HW_J_CART 0x02
|
|
#define HW_LOCK_ON 0x04
|
|
|
|
/* Cartridge extra hardware */
|
|
typedef struct
|
|
{
|
|
uint8 regs[4]; /* internal registers (R/W) */
|
|
uint32 mask[4]; /* registers address mask */
|
|
uint32 addr[4]; /* registers address */
|
|
uint16 realtec; /* realtec mapper */
|
|
uint16 bankshift; /* cartridge with bankshift mecanism reseted on software reset */
|
|
unsigned int (*time_r)(unsigned int address); /* !TIME signal ($a130xx) read handler */
|
|
void (*time_w)(unsigned int address, unsigned int data); /* !TIME signal ($a130xx) write handler */
|
|
unsigned int (*regs_r)(unsigned int address); /* cart hardware registers read handler */
|
|
void (*regs_w)(unsigned int address, unsigned int data); /* cart hardware registers write handler */
|
|
} T_CART_HW;
|
|
|
|
/* Cartridge type */
|
|
typedef struct
|
|
{
|
|
uint8 *rom; /* ROM area */
|
|
uint8 *base; /* ROM base (saved for OS/Cartridge ROM swap) */
|
|
uint32 romsize; /* ROM size */
|
|
uint32 mask; /* ROM mask */
|
|
uint8 special; /* Lock-On, J-Cart or SMS 3-D glasses hardware */
|
|
T_CART_HW hw; /* Extra mapping hardware */
|
|
} T_CART;
|
|
|
|
/* global variables */
|
|
extern T_CART cart;
|
|
|
|
/* Function prototypes */
|
|
extern void md_cart_init(void);
|
|
extern void md_cart_reset(int hard_reset);
|
|
extern int md_cart_context_save(uint8 *state);
|
|
extern int md_cart_context_load(uint8 *state);
|
|
|
|
#endif
|
|
|
|
|