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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.
78 lines
3.8 KiB
C
78 lines
3.8 KiB
C
/***************************************************************************************
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* Genesis Plus
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* 68k bus handlers
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*
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* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Charles Mac Donald (original code)
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* Copyright (C) 2007-2011 Eke-Eke (Genesis Plus GX)
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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 _MEM68K_H_
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#define _MEM68K_H_
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/* unused areas */
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extern unsigned int m68k_read_bus_8(unsigned int address);
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extern unsigned int m68k_read_bus_16(unsigned int address);
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extern void m68k_unused_8_w(unsigned int address, unsigned int data);
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extern void m68k_unused_16_w(unsigned int address, unsigned int data);
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/* illegal areas */
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extern unsigned int m68k_lockup_r_8(unsigned int address);
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extern unsigned int m68k_lockup_r_16(unsigned int address);
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extern void m68k_lockup_w_8(unsigned int address, unsigned int data);
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extern void m68k_lockup_w_16(unsigned int address, unsigned int data);
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/* Z80 bus */
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extern unsigned int z80_read_byte(unsigned int address);
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extern unsigned int z80_read_word(unsigned int address);
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extern void z80_write_byte(unsigned int address, unsigned int data);
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extern void z80_write_word(unsigned int address, unsigned int data);
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/* I/O & Control registers */
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extern unsigned int ctrl_io_read_byte(unsigned int address);
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extern unsigned int ctrl_io_read_word(unsigned int address);
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extern void ctrl_io_write_byte(unsigned int address, unsigned int data);
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extern void ctrl_io_write_word(unsigned int address, unsigned int data);
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/* VDP */
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extern unsigned int vdp_read_byte(unsigned int address);
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extern unsigned int vdp_read_word(unsigned int address);
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extern void vdp_write_byte(unsigned int address, unsigned int data);
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extern void vdp_write_word(unsigned int address, unsigned int data);
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/* PICO */
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extern unsigned int pico_read_byte(unsigned int address);
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extern unsigned int pico_read_word(unsigned int address);
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#endif /* _MEM68K_H_ */
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