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#include "emu.h"
#include "coreutil.h"
#include "cpu/m68000/m68000.h"
#include "cpu/sh2/sh2.h"
#include "cpu/sh2/sh2comn.h"
#include "cpu/z80/z80.h"
#include "sound/2612intf.h"
#include "sound/cdda.h"
#include "sound/dac.h"
#include "sound/rf5c68.h"
#include "sound/sn76496.h"
#include "machine/nvram.h"
#include "cpu/ssp1601/ssp1601.h"
#include "machine/megavdp.h"
#include "machine/mega32x.h"
#include "machine/megacd.h"
#include "video/315_5124.h"
#define MASTER_CLOCK_NTSC 53693175
#define MASTER_CLOCK_PAL 53203424
#define SEGACD_CLOCK 12500000
#define MAX_MD_CART_SIZE 0x800000
/* where a fresh copy of rom is stashed for reset and banking setup */
#define VIRGIN_COPY_GEN 0xd00000
#define MD_CPU_REGION_SIZE (MAX_MD_CART_SIZE + VIRGIN_COPY_GEN)
extern int sega_cd_connected;
/*----------- defined in machine/megadriv.c -----------*/
INPUT_PORTS_EXTERN( md_common );
INPUT_PORTS_EXTERN( megadriv );
INPUT_PORTS_EXTERN( megadri6 );
INPUT_PORTS_EXTERN( ssf2mdb );
INPUT_PORTS_EXTERN( mk3mdb );
INPUT_PORTS_EXTERN( megdsvp );
MACHINE_CONFIG_EXTERN( megadriv_timers );
MACHINE_CONFIG_EXTERN( md_ntsc );
MACHINE_CONFIG_EXTERN( md_pal );
MACHINE_CONFIG_EXTERN( md_svp );
MACHINE_CONFIG_EXTERN( megdsvppal );
MACHINE_CONFIG_EXTERN( megadriv );
MACHINE_CONFIG_EXTERN( megadpal );
MACHINE_CONFIG_EXTERN( megdsvp );
MACHINE_CONFIG_EXTERN( genesis_32x );
MACHINE_CONFIG_EXTERN( genesis_32x_pal );
MACHINE_CONFIG_EXTERN( genesis_scd );
MACHINE_CONFIG_EXTERN( genesis_scd_scd );
MACHINE_CONFIG_EXTERN( genesis_scd_mcd );
MACHINE_CONFIG_EXTERN( genesis_scd_mcdj );
MACHINE_CONFIG_EXTERN( genesis_32x_scd );
MACHINE_CONFIG_EXTERN( md_bootleg ); // for topshoot.c & hshavoc.c
extern UINT16* megadriv_backupram;
extern int megadriv_backupram_length;
extern UINT8 megatech_bios_port_cc_dc_r(running_machine &machine, int offset, int ctrl);
extern void megadriv_stop_scanline_timer(running_machine &machine);
void megatech_set_megadrive_z80_as_megadrive_z80(running_machine &machine, const char* tag);
/* These handlers are needed by megaplay.c */
extern DECLARE_READ16_HANDLER( megadriv_68k_io_read );
extern DECLARE_WRITE16_HANDLER( megadriv_68k_io_write );
/* These are needed to create external input handlers (see e.g. MESS) */
/* Regs are also used by Megaplay! */
extern UINT8 (*megadrive_io_read_data_port_ptr)(running_machine &machine, int offset);
extern void (*megadrive_io_write_data_port_ptr)(running_machine &machine, int offset, UINT16 data);
extern UINT8 megadrive_io_data_regs[3];
extern UINT8 megadrive_io_ctrl_regs[3];
MACHINE_START( megadriv );
MACHINE_RESET( megadriv );
VIDEO_START( megadriv );
SCREEN_UPDATE_RGB32( megadriv );
SCREEN_VBLANK( megadriv );
extern int megadrive_6buttons_pad;
/* Megaplay - Megatech specific */
/* It might be possible to move the following structs in the drivers */
#define MP_ROM 0x10
#define MP_GAME 0
class md_base_state : public driver_device
{
public:
md_base_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_vdp(*this,"gen_vdp"),
m_megadrive_ram(*this,"megadrive_ram")
{
sega_cd_connected = 0;
}
required_device<sega_genesis_vdp_device> m_vdp;
optional_shared_ptr<UINT16> m_megadrive_ram;
DECLARE_DRIVER_INIT(megadriv_c2);
DECLARE_DRIVER_INIT(megadrie);
DECLARE_DRIVER_INIT(megadriv);
DECLARE_DRIVER_INIT(megadrij);
DECLARE_DRIVER_INIT(mpnew);
DECLARE_READ8_MEMBER(megadriv_68k_YM2612_read);
DECLARE_WRITE8_MEMBER(megadriv_68k_YM2612_write);
};
class md_boot_state : public md_base_state
{
public:
md_boot_state(const machine_config &mconfig, device_type type, const char *tag)
: md_base_state(mconfig, type, tag) { m_protcount = 0;}
// bootleg specific
int m_aladmdb_mcu_port;
int m_protcount;
// jzth protection
DECLARE_WRITE16_MEMBER( bl_710000_w )
{
int pc = space.device().safe_pc();
logerror("%06x writing to bl_710000_w %04x %04x\n", pc, data, mem_mask);
// protection value is read from 0x710000 after a series of writes.. and stored at ff0007
// startup
/*
059ce0 writing to bl_710000_w ff08 ffff
059d04 writing to bl_710000_w 000a ffff
059d04 writing to bl_710000_w 000b ffff
059d04 writing to bl_710000_w 000c ffff
059d04 writing to bl_710000_w 000f ffff
059d1c writing to bl_710000_w ff09 ffff
059d2a reading from bl_710000_r (wants 0xe)
059ce0 writing to bl_710000_w ff08 ffff
059d04 writing to bl_710000_w 000a ffff
059d04 writing to bl_710000_w 000b ffff
059d04 writing to bl_710000_w 000c ffff
059d04 writing to bl_710000_w 000f ffff
059d1c writing to bl_710000_w ff09 ffff
059d2a reading from bl_710000_r (wants 0xe)
*/
// before lv stage 3
/*
059ce0 writing to bl_710000_w 0008 ffff
059d04 writing to bl_710000_w 000b ffff
059d04 writing to bl_710000_w 000f ffff
059d1c writing to bl_710000_w ff09 ffff
059d2a reading from bl_710000_r (wants 0x4)
*/
// start level 3
/*
059ce0 writing to bl_710000_w ff08 ffff
059d04 writing to bl_710000_w 000b ffff
059d04 writing to bl_710000_w 000c ffff
059d04 writing to bl_710000_w 000e ffff
059d1c writing to bl_710000_w ff09 ffff
059d2a reading from bl_710000_r (wants 0x5)
// after end sequence
059ce0 writing to bl_710000_w 0008 ffff
059d04 writing to bl_710000_w 000a ffff
059d04 writing to bl_710000_w 000b ffff
059d04 writing to bl_710000_w 000c ffff
059d04 writing to bl_710000_w 000f ffff
059d1c writing to bl_710000_w ff09 ffff
059d2a reading from bl_710000_r (wants 0xe)
*/
m_protcount++;
}
DECLARE_READ16_MEMBER( bl_710000_r )
{
UINT16 ret;
int pc = space.device().safe_pc();
logerror("%06x reading from bl_710000_r\n", pc);
if (m_protcount==6) { ret = 0xe; }
else if (m_protcount==5) { ret = 0x5; }
else if (m_protcount==4) { ret = 0x4; }
else ret = 0xf;
m_protcount = 0;
return ret;
}
DECLARE_DRIVER_INIT(aladmdb);
DECLARE_DRIVER_INIT(mk3mdb);
DECLARE_DRIVER_INIT(ssf2mdb);
DECLARE_DRIVER_INIT(srmdb);
DECLARE_DRIVER_INIT(topshoot);
DECLARE_DRIVER_INIT(puckpkmn);
};
class segac2_state : public md_base_state
{
public:
segac2_state(const machine_config &mconfig, device_type type, const char *tag)
: md_base_state(mconfig, type, tag),
m_paletteram(*this, "paletteram") { }
// for Print Club only
int m_cam_data;
int m_segac2_enable_display;
required_shared_ptr<UINT16> m_paletteram;
/* internal states */
UINT8 m_misc_io_data[0x10]; /* holds values written to the I/O chip */
/* protection-related tracking */
int (*m_prot_func)(int in); /* emulation of protection chip */
UINT8 m_prot_write_buf; /* remembers what was written */
UINT8 m_prot_read_buf; /* remembers what was returned */
/* palette-related variables */
UINT8 m_segac2_alt_palette_mode;
UINT8 m_palbank;
UINT8 m_bg_palbase;
UINT8 m_sp_palbase;
/* sound-related variables */
UINT8 m_sound_banks; /* number of sound banks */
DECLARE_DRIVER_INIT(c2boot);
DECLARE_DRIVER_INIT(bloxeedc);
DECLARE_DRIVER_INIT(columns);
DECLARE_DRIVER_INIT(columns2);
DECLARE_DRIVER_INIT(tfrceac);
DECLARE_DRIVER_INIT(tfrceacb);
DECLARE_DRIVER_INIT(borench);
DECLARE_DRIVER_INIT(twinsqua);
DECLARE_DRIVER_INIT(ribbit);
DECLARE_DRIVER_INIT(puyo);
DECLARE_DRIVER_INIT(tantr);
DECLARE_DRIVER_INIT(tantrkor);
DECLARE_DRIVER_INIT(potopoto);
DECLARE_DRIVER_INIT(stkclmns);
DECLARE_DRIVER_INIT(stkclmnj);
DECLARE_DRIVER_INIT(ichir);
DECLARE_DRIVER_INIT(ichirk);
DECLARE_DRIVER_INIT(ichirj);
DECLARE_DRIVER_INIT(ichirjbl);
DECLARE_DRIVER_INIT(puyopuy2);
DECLARE_DRIVER_INIT(zunkyou);
DECLARE_DRIVER_INIT(pclub);
DECLARE_DRIVER_INIT(pclubjv2);
DECLARE_DRIVER_INIT(pclubjv4);
DECLARE_DRIVER_INIT(pclubjv5);
void segac2_common_init(running_machine& machine, int (*func)(int in));
DECLARE_VIDEO_START(segac2_new);
DECLARE_MACHINE_START(segac2);
DECLARE_MACHINE_RESET(segac2);
UINT32 screen_update_segac2_new(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
};
class mplay_state : public md_base_state
{
public:
mplay_state(const machine_config &mconfig, device_type type, const char *tag)
: md_base_state(mconfig, type, tag),
m_ic3_ram(*this, "ic3_ram"),
m_vdp1(*this, "vdp1"),
m_bioscpu(*this, "mtbios")
{ }
UINT32 m_bios_mode; // determines whether ROM banks or Game data
// is to read from 0x8000-0xffff
UINT32 m_bios_bank; // ROM bank selection
UINT16 m_game_banksel; // Game bank selection
UINT32 m_readpos; // serial bank selection position (9-bit)
UINT32 m_mp_bios_bank_addr;
UINT32 m_bios_width; // determines the way the game info ROM is read
UINT8 m_bios_ctrl[6];
UINT8 m_bios_6600;
UINT8 m_bios_6403;
UINT8 m_bios_6404;
UINT16 *m_genesis_io_ram;
required_shared_ptr<UINT8> m_ic3_ram;
optional_device<sega315_5124_device> m_vdp1;
required_device<cpu_device> m_bioscpu;
UINT8* m_ic37_ram;
UINT16 *m_ic36_ram;
DECLARE_WRITE_LINE_MEMBER( int_callback );
DECLARE_DRIVER_INIT(megaplay);
DECLARE_VIDEO_START(megplay);
DECLARE_MACHINE_RESET(megaplay);
UINT32 screen_update_megplay(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
void screen_eof_megaplay(screen_device &screen, bool state);
};
class mtech_state : public md_base_state
{
public:
mtech_state(const machine_config &mconfig, device_type type, const char *tag)
: md_base_state(mconfig, type, tag),
m_vdp1(*this, "vdp1"),
m_bioscpu(*this, "mtbios")
{ }
required_device<sega315_5124_device> m_vdp1;
required_device<cpu_device> m_bioscpu;
DECLARE_WRITE_LINE_MEMBER( int_callback );
UINT8 m_mt_cart_select_reg;
UINT32 m_bios_port_ctrl;
int m_current_game_is_sms; // is the current game SMS based (running on genesis z80, in VDP compatibility mode)
UINT32 m_bios_ctrl_inputs;
UINT8 m_bios_ctrl[6];
int m_mt_bank_addr;
int m_cart_is_genesis[8];
/* Megatech BIOS specific */
UINT8* m_megatech_banked_ram;
DECLARE_DRIVER_INIT(mt_crt);
DECLARE_DRIVER_INIT(mt_slot);
DECLARE_VIDEO_START(mtnew);
DECLARE_MACHINE_RESET(mtnew);
UINT32 screen_update_mtnew(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
void screen_eof_mtnew(screen_device &screen, bool state);
UINT32 screen_update_megatech_menu(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
};
struct megadriv_cart
{
int type;
// SRAM related
UINT16 *sram;
int last_loaded_image_length;
int sram_start, sram_end;
int sram_active, sram_readonly;
int sram_handlers_installed;
int sram_detected;
// EEPROM related
int has_serial_eeprom;
// I2C related
UINT8 i2c_mem, i2c_clk;
// mapper related (mostly for pirate carts)
UINT16 squirrel_king_extra;
UINT16 lion2_prot1_data, lion2_prot2_data;
UINT16 realtec_bank_addr, realtec_bank_size, realtec_old_bank_addr;
UINT16 l3alt_pdat, l3alt_pcmd;
int ssf2_lastoff, ssf2_lastdata;
};
class md_cons_state : public md_base_state
{
public:
md_cons_state(const machine_config &mconfig, device_type type, const char *tag)
: md_base_state(mconfig, type, tag) { }
emu_timer *m_mess_io_timeout[3];
int m_mess_io_stage[3];
UINT8 m_jcart_io_data[2];
megadriv_cart m_md_cart;
DECLARE_DRIVER_INIT(hshavoc);
DECLARE_DRIVER_INIT(topshoot);
DECLARE_DRIVER_INIT(genesis);
DECLARE_DRIVER_INIT(mess_md_common);
DECLARE_DRIVER_INIT(md_eur);
DECLARE_DRIVER_INIT(md_jpn);
};
class mdsvp_state : public md_cons_state
{
public:
mdsvp_state(const machine_config &mconfig, device_type type, const char *tag)
: md_cons_state(mconfig, type, tag) { }
UINT8 *m_iram; // IRAM (0-0x7ff)
UINT8 *m_dram; // [0x20000];
UINT32 m_pmac_read[6]; // read modes/addrs for PM0-PM5
UINT32 m_pmac_write[6]; // write ...
PAIR m_pmc;
UINT32 m_emu_status;
UINT16 m_XST; // external status, mapped at a15000 and a15002 on 68k side.
UINT16 m_XST2; // status of XST (bit1 set when 68k writes to XST)
};
ADDRESS_MAP_EXTERN( svp_ssp_map, driver_device );
ADDRESS_MAP_EXTERN( svp_ext_map, driver_device );
extern void svp_init(running_machine &machine);
extern cpu_device *_svp_cpu;
UINT8 megadrive_io_read_data_port_3button(running_machine &machine, int portnum);
class _32x_state : public md_base_state
{
public:
_32x_state(const machine_config &mconfig, device_type type, const char *tag)
: md_base_state(mconfig, type, tag) { }
};
extern cpu_device *_32x_master_cpu;
extern cpu_device *_32x_slave_cpu;
// called from out main scanline timers...
class segacd_state : public _32x_state // use _32x_state as base to make easier the combo 32X + SCD
{
public:
segacd_state(const machine_config &mconfig, device_type type, const char *tag)
: _32x_state(mconfig, type, tag)
{ }
};
/*----------- defined in machine/md_cart.c -----------*/
MACHINE_CONFIG_EXTERN( genesis_cartslot );
MACHINE_CONFIG_EXTERN( _32x_cartslot );
MACHINE_CONFIG_EXTERN( pico_cartslot );
MACHINE_START( md_sram );
/*----------- defined in drivers/megadriv.c -----------*/
/* These are needed to handle J-Cart inputs */
extern DECLARE_WRITE16_HANDLER( jcart_ctrl_w );
extern DECLARE_READ16_HANDLER( jcart_ctrl_r );
/* machine/megavdp.c */
extern UINT16 (*vdp_get_word_from_68k_mem)(running_machine &machine, UINT32 source, address_space& space);
extern UINT16 vdp_get_word_from_68k_mem_default(running_machine &machine, UINT32 source, address_space& space);
extern int megadriv_framerate;
extern int megadrive_total_scanlines;
extern int megadrive_vblank_flag;
extern int genesis_scanline_counter;
extern UINT16* megadrive_vdp_palette_lookup;
extern int megadrive_region_export;
extern int megadrive_region_pal;
/* machine/megadriv.c */
extern TIMER_DEVICE_CALLBACK( megadriv_scanline_timer_callback );
extern timer_device* megadriv_scanline_timer;
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