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62f1204476
Genesis Plus GX 1.6.0 ---------------------- [Core/Sound] --------------- * added YM2413 emulation in Master System compatibility mode. * fixed SN76489 noise boost initialization. * minor YM2612 core optimizations. [Core/VDP] --------------- * added accurate emulation of SG-1000, Master System (315-5124, 315-5246) & Game Gear VDP. * added support for all TMS9918 rendering modes. * improved Mega Drive VDP timings accuracy in Master System Compatibility mode. * fixed color palette initialization. * fixed shifted sprites rendering in Mode 4. * modified pixel rendering support (pixel depth is now forced at compilation time). [Core/CPU] --------------- * optimized 68k core (rewrote 68k interrupt handling, removed multiple CPU types support & unused code) for 5~8% speed improvment [Core/IO] --------------- * added accurate emulation of Master System (315-5216, 315-5237, 315-5297) & Game Gear I/O controllers. * added Terebi Oekaki tablet emulation. * improved Mouse emulation (fixes mouse support in Cannon Fodder). * improved Justifier emulation (fixes gun support in Lethal Enforcers 2). * improved 6-Buttons control pad emulation (fixes Duke Nukem 3D) * modified lightgun emulation to use common key inputs for all devices. * 2-buttons controller is now picked by default for Master System games. [Core/MD] --------------- * added copy-protection hardware emulation for some new dumped games (Tiny Toon Adventures 3, Mighty Morphin Power Rangers & The Battle of Red Cliffs). * added Game Toshokan in EEPROM database (verified on real cartridge). * fixed Micro Machines 2 - Turbo Tournament EEPROM size (verified on real cartridge). * modified SRAM banswitch hardware emulation to be more compatible with some hacks. [Core/MS] --------------- * added Cyborg Z to Korean mapper database. [Core/GG] --------------- * added 93C46 EEPROM emulation (Majors Pro Baseball, World Series Baseball & World Series Baseball 95). [Core/General] --------------- * added support for .mdx ROM format. * added Game Gear & SG-1000 ROM support. * added accurate emulation of SG-1000, Master System (I, II) & Game Gear hardware models for 100% compatibility. * updated to new Genesis Plus license (see http://cgfm2.emuviews.com/) * removed DOS port * various code cleanup. [Gamecube/Wii] --------------- * IMPORTANT: cheats, screenshots & save files are now stored in console-specific directories (ex: /snaps/md, /cheats/ms, /saves/gg, ...) * added 8-bit Action Replay & Game Genie codes support (for Master System & Game Gear games). * improved audio/video synchronization for PAL games in 50Hz TV modes (now use VSYNC like NTSC games in 60hz modes). * improved gun cursor positioning accuracy. * improved horizontal scaling & screenshots rendering in H32 mode. * fixed a bug with ROM file extension handling that would affect cheats, snapshots, sram & savestate files. * removed ARAM/injected ROM support (unused). * removed WPAD_ and PAD_ update from VSYNC callback. * increased GCC inlining limits for some speed improvment. * compiled with devkitPPC r24 & libogc 1.8.7.
93 lines
4.1 KiB
C
93 lines
4.1 KiB
C
/****************************************************************************
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* Genesis Plus
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* Mega Drive cartridge hardware support
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*
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* Copyright (C) 2007-2011 Eke-Eke (Genesis Plus GX)
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*
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* Most cartridge protections were initially documented by Haze
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* (http://haze.mameworld.info/)
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*
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* Realtec mapper was documented by TascoDeluxe
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*
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* Redistribution and use of this code or any derivative works are permitted
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* provided that the following conditions are met:
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*
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* - Redistributions may not be sold, nor may they be used in a commercial
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* product or activity.
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*
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* - Redistributions that are modified from the original source must include the
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* complete source code, including the source code for all components used by a
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* binary built from the modified sources. However, as a special exception, the
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* source code distributed need not include anything that is normally distributed
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* (in either source or binary form) with the major components (compiler, kernel,
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* and so on) of the operating system on which the executable runs, unless that
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* component itself accompanies the executable.
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*
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* - Redistributions must reproduce the above copyright notice, this list of
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* conditions and the following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************************/
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#ifndef _MD_CART_H_
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#define _MD_CART_H_
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/* Lock-On cartridge type */
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#define TYPE_GG 0x01 /* Game Genie */
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#define TYPE_AR 0x02 /* (Pro) Action Replay */
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#define TYPE_SK 0x03 /* Sonic & Knuckles */
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/* Special hardware (0x01 & 0x02 reserved for Master System 3-D glasses & Terebi Oekaki) */
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#define HW_J_CART 0x04
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#define HW_LOCK_ON 0x08
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/* Cartridge extra hardware */
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typedef struct
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{
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uint8 regs[4]; /* internal registers (R/W) */
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uint32 mask[4]; /* registers address mask */
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uint32 addr[4]; /* registers address */
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uint16 realtec; /* realtec mapper */
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uint16 bankshift; /* cartridge with bankshift mecanism reseted on software reset */
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unsigned int (*time_r)(unsigned int address); /* !TIME signal ($a130xx) read handler */
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void (*time_w)(unsigned int address, unsigned int data); /* !TIME signal ($a130xx) write handler */
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unsigned int (*regs_r)(unsigned int address); /* cart hardware registers read handler */
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void (*regs_w)(unsigned int address, unsigned int data); /* cart hardware registers write handler */
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} T_CART_HW;
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/* Cartridge type */
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typedef struct
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{
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uint8 *rom; /* ROM area */
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uint8 *base; /* ROM base (saved for OS/Cartridge ROM swap) */
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uint32 romsize; /* ROM size */
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uint32 mask; /* ROM mask */
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uint8 special; /* Lock-On, J-Cart or SMS 3-D glasses hardware */
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T_CART_HW hw; /* Extra mapping hardware */
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} T_CART;
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/* global variables */
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extern T_CART cart;
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/* Function prototypes */
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extern void md_cart_init(void);
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extern void md_cart_reset(int hard_reset);
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extern int md_cart_context_save(uint8 *state);
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extern int md_cart_context_load(uint8 *state);
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#endif
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