mirror of
https://github.com/ekeeke/Genesis-Plus-GX.git
synced 2024-12-29 04:31:49 +01:00
d66d747d98
- added port $3E emulation (SMS, GG) - added SMS & GG BIOS support - added an option to run BIOS without cartridge - added separate ROM browsers for SG-1000, Master System, Game Gear & Mega Drive / Genesis - changed Cheat menu icon - moved ROM device selection (SD,USB,DVD) to menu options - moved savestate compression/decompression out of emulator core - removed useless background images & background color option - prevented deletion of cheat files when no valid codes are found left - added IOS patch on startup to fix Homebrew Channel network bug when <no_ios_reload> option is used [GUI] -
68 lines
3.1 KiB
C
68 lines
3.1 KiB
C
/***************************************************************************************
|
|
* Genesis Plus
|
|
* Internal hardware & Bus controllers
|
|
*
|
|
* Support for SG-1000, Mark-III, Master System, Game Gear & Mega Drive hardware
|
|
*
|
|
* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Charles Mac Donald (original code)
|
|
* Copyright (C) 2007-2011 Eke-Eke (Genesis Plus GX)
|
|
*
|
|
* Redistribution and use of this code or any derivative works are permitted
|
|
* provided that the following conditions are met:
|
|
*
|
|
* - Redistributions may not be sold, nor may they be used in a commercial
|
|
* product or activity.
|
|
*
|
|
* - Redistributions that are modified from the original source must include the
|
|
* complete source code, including the source code for all components used by a
|
|
* binary built from the modified sources. However, as a special exception, the
|
|
* source code distributed need not include anything that is normally distributed
|
|
* (in either source or binary form) with the major components (compiler, kernel,
|
|
* and so on) of the operating system on which the executable runs, unless that
|
|
* component itself accompanies the executable.
|
|
*
|
|
* - Redistributions must reproduce the above copyright notice, this list of
|
|
* conditions and the following disclaimer in the documentation and/or other
|
|
* materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
****************************************************************************************/
|
|
|
|
#ifndef _GENESIS_H_
|
|
#define _GENESIS_H_
|
|
|
|
/* Global variables */
|
|
extern uint8 boot_rom[0x800];
|
|
extern uint8 work_ram[0x10000];
|
|
extern uint8 zram[0x2000];
|
|
extern uint32 zbank;
|
|
extern uint8 zstate;
|
|
extern uint8 pico_current;
|
|
extern uint8 pico_page[7];
|
|
|
|
/* Function prototypes */
|
|
extern void gen_init(void);
|
|
extern void gen_reset(int hard_reset);
|
|
extern void gen_shutdown(void);
|
|
extern void gen_tmss_w(unsigned int offset, unsigned int data);
|
|
extern void gen_bankswitch_w(unsigned int data);
|
|
extern unsigned int gen_bankswitch_r(void);
|
|
extern void gen_zbusreq_w(unsigned int state, unsigned int cycles);
|
|
extern void gen_zreset_w(unsigned int state, unsigned int cycles);
|
|
extern void gen_zbank_w(unsigned int state);
|
|
extern int z80_irq_callback(int param);
|
|
|
|
#endif /* _GEN_H_ */
|
|
|