diff options
Diffstat (limited to 'src/mame/drivers/megaplay.cpp')
-rw-r--r-- | src/mame/drivers/megaplay.cpp | 995 |
1 files changed, 0 insertions, 995 deletions
diff --git a/src/mame/drivers/megaplay.cpp b/src/mame/drivers/megaplay.cpp deleted file mode 100644 index 6d727960a23..00000000000 --- a/src/mame/drivers/megaplay.cpp +++ /dev/null @@ -1,995 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:David Haywood - -/* - -Driver is marked as NOT WORKING because interaction between BIOS and 68k side is -not fully understood. The BIOS often doesn't register that a game has been started -and leaves the 'PRESS P1 OR P2 START' message onscreen during gameplay as a result. -If this happens, the games usually then crash when you run out of lives as they end -up in an unknown state. - - - -About MegaPlay: - -Megaplay games are specially designed Genesis games, produced for arcade use. - -The code of these games has significant modifications when compared to the Genesis -releases and in many cases the games are cut-down versions of the games that were -released for the home system. For example, Sonic has less zones, and no special -stages, thus making it impossible to get all the chaos emeralds. Zones also have a -strict timer. - -Coins buy you credits on Megaplay games, meaning if you lose all your lives the game is -over, like a regular Arcade game. - -Like the Megatech the Megaplay boards have an additional Z80 and SMS VDP chip when compared -to the standard Genesis hardware. In this case the additional hardware creates a layer -which is displayed as an overlay to the game screen. This layer contains basic text -such as Insert Coin, and the Megaplay Logo / Instructions during the attract loop. - -The BIOS reads the Start inputs and (once enough coins have been inserted) passes them to -the 68k rather than using the regular Genesis PAD hookups. - -Communication between the various CPUs seems to be fairly complex and it is not fully -understood what is shared, where, and how. One of the BIOS sets doesn't work, maybe for -this reason. - -*/ - -#include "emu.h" -#include "cpu/z80/z80.h" -#include "machine/cxd1095.h" - -#include "includes/megadriv.h" - -#define MASTER_CLOCK 53693100 - -#define MP_ROM 1 -#define MP_GAME 0 - - -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") - { } - - void megaplay(machine_config &config); - - void init_megaplay(); - - DECLARE_READ_LINE_MEMBER(start1_r); - DECLARE_READ_LINE_MEMBER(start2_r); - -private: - - DECLARE_READ16_MEMBER(extra_ram_r); - DECLARE_WRITE16_MEMBER(extra_ram_w); - DECLARE_WRITE8_MEMBER(bios_banksel_w); - DECLARE_WRITE8_MEMBER(bios_gamesel_w); - DECLARE_WRITE16_MEMBER(mp_io_write); - DECLARE_READ16_MEMBER(mp_io_read); - DECLARE_READ8_MEMBER(bank_r); - DECLARE_WRITE8_MEMBER(bank_w); - DECLARE_READ8_MEMBER(bios_6402_r); - DECLARE_WRITE8_MEMBER(bios_6402_w); - DECLARE_READ8_MEMBER(bios_6204_r); - DECLARE_WRITE8_MEMBER(bios_width_w); - DECLARE_READ8_MEMBER(bios_6404_r); - DECLARE_WRITE8_MEMBER(bios_6404_w); - DECLARE_READ8_MEMBER(bios_6600_r); - DECLARE_WRITE8_MEMBER(bios_6600_w); - DECLARE_WRITE8_MEMBER(game_w); - DECLARE_READ8_MEMBER(vdp1_count_r); - - DECLARE_VIDEO_START(megplay); - DECLARE_MACHINE_RESET(megaplay); - uint32_t screen_update_megplay(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect); - - void megaplay_bios_io_map(address_map &map); - void megaplay_bios_map(address_map &map); - - uint32_t m_bios_mode; // determines whether ROM banks or Game data is to read from 0x8000-0xffff - - uint32_t m_bios_bank; // ROM bank selection - uint16_t m_game_banksel; // Game bank selection - uint32_t m_readpos; // serial bank selection position (9-bit) - uint32_t m_bios_bank_addr; - - uint32_t m_bios_width; // determines the way the game info ROM is read - uint8_t m_bios_6600; - uint8_t m_bios_6403; - uint8_t m_bios_6404; - - std::unique_ptr<uint16_t[]> m_ic36_ram; - std::unique_ptr<uint8_t[]> m_ic37_ram; - - required_shared_ptr<uint8_t> m_ic3_ram; - optional_device<sega315_5124_device> m_vdp1; - required_device<cpu_device> m_bioscpu; -}; - - -static INPUT_PORTS_START ( megaplay ) - PORT_INCLUDE( md_common ) - - PORT_START("TEST") - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_SERVICE2 ) PORT_NAME("Select") PORT_CODE(KEYCODE_0) - PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_UNKNOWN ) PORT_NAME("0x6400 bit 1") PORT_CODE(KEYCODE_W) - PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_UNKNOWN ) PORT_NAME("0x6400 bit 2") PORT_CODE(KEYCODE_E) - PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_UNKNOWN ) PORT_NAME("0x6400 bit 3") PORT_CODE(KEYCODE_R) - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_NAME("0x6400 bit 4") PORT_CODE(KEYCODE_T) - PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_NAME("0x6400 bit 5") PORT_CODE(KEYCODE_Y) - PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_UNKNOWN ) PORT_NAME("0x6400 bit 6") PORT_CODE(KEYCODE_U) - PORT_SERVICE_NO_TOGGLE( 0x80, IP_ACTIVE_LOW ) - - PORT_START("COIN") - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 ) - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN2 ) - PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_UNKNOWN ) - PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_UNKNOWN ) - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_SERVICE1 ) - PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN ) - PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_START1 ) - PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_START2 ) - - PORT_MODIFY("PAD1") // P1 Start input processed through BIOS - PORT_BIT( 0x0080, IP_ACTIVE_HIGH, IPT_CUSTOM ) PORT_READ_LINE_DEVICE_MEMBER(DEVICE_SELF, mplay_state, start1_r) - - PORT_MODIFY("PAD2") // P2 Start input processed through BIOS - PORT_BIT( 0x0080, IP_ACTIVE_HIGH, IPT_CUSTOM ) PORT_READ_LINE_DEVICE_MEMBER(DEVICE_SELF, mplay_state, start2_r) - - PORT_START("DSW0") - PORT_DIPNAME( 0x0f, 0x0f, "Coin slot 1" ) PORT_DIPLOCATION("SW1:1,2,3,4") - PORT_DIPSETTING( 0x07, DEF_STR( 4C_1C ) ) - PORT_DIPSETTING( 0x08, DEF_STR( 3C_1C ) ) - PORT_DIPSETTING( 0x09, DEF_STR( 2C_1C ) ) - PORT_DIPSETTING( 0x05, "2 coins/1 credit - 5 coins/3 credits - 6 coins/4 credits" ) - PORT_DIPSETTING( 0x04, "2 coins/1 credit - 4 coins/3 credits" ) - PORT_DIPSETTING( 0x0f, DEF_STR( 1C_1C ) ) - PORT_DIPSETTING( 0x06, DEF_STR( 2C_3C ) ) - PORT_DIPSETTING( 0x0e, DEF_STR( 1C_2C ) ) - PORT_DIPSETTING( 0x0d, DEF_STR( 1C_3C ) ) - PORT_DIPSETTING( 0x0c, DEF_STR( 1C_4C ) ) - PORT_DIPSETTING( 0x0b, DEF_STR( 1C_5C ) ) - PORT_DIPSETTING( 0x0a, DEF_STR( 1C_6C ) ) - PORT_DIPSETTING( 0x03, "1 coin/1 credit - 5 coins/6 credits" ) - PORT_DIPSETTING( 0x02, "1 coin/1 credit - 4 coins/5 credits" ) - PORT_DIPSETTING( 0x01, "1 coin/1 credit - 2 coins/3 credits" ) - PORT_DIPSETTING( 0x00, DEF_STR( Free_Play ) ) - - PORT_DIPNAME( 0xf0, 0xf0, "Coin slot 2" ) PORT_DIPLOCATION("SW2:1,2,3,4") - PORT_DIPSETTING( 0x70, DEF_STR( 4C_1C ) ) - PORT_DIPSETTING( 0x80, DEF_STR( 3C_1C ) ) - PORT_DIPSETTING( 0x90, DEF_STR( 2C_1C ) ) - PORT_DIPSETTING( 0x50, "2 coins/1 credit - 5 coins/3 credits - 6 coins/4 credits" ) - PORT_DIPSETTING( 0x40, "2 coins/1 credit - 4 coins/3 credits" ) - PORT_DIPSETTING( 0xf0, DEF_STR( 1C_1C ) ) - PORT_DIPSETTING( 0x60, DEF_STR( 2C_3C ) ) - PORT_DIPSETTING( 0xe0, DEF_STR( 1C_2C ) ) - PORT_DIPSETTING( 0xd0, DEF_STR( 1C_3C ) ) - PORT_DIPSETTING( 0xc0, DEF_STR( 1C_4C ) ) - PORT_DIPSETTING( 0xb0, DEF_STR( 1C_5C ) ) - PORT_DIPSETTING( 0xa0, DEF_STR( 1C_6C ) ) - PORT_DIPSETTING( 0x30, "1 coin/1 credit - 5 coins/6 credits" ) - PORT_DIPSETTING( 0x20, "1 coin/1 credit - 4 coins/5 credits" ) - PORT_DIPSETTING( 0x10, "1 coin/1 credit - 2 coins/3 credits" ) - PORT_DIPSETTING( 0x00, " 1 coin/1 credit" ) - - PORT_START("DSW1") /* DSW C (per game settings) */ - PORT_DIPNAME( 0x01, 0x01, DEF_STR( Unknown ) ) PORT_DIPLOCATION("SW3:1") - PORT_DIPSETTING( 0x01, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x00, DEF_STR( On ) ) - PORT_DIPNAME( 0x02, 0x00, DEF_STR( Unknown ) ) PORT_DIPLOCATION("SW3:2") - PORT_DIPSETTING( 0x02, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x00, DEF_STR( On ) ) - PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) ) PORT_DIPLOCATION("SW3:3") - PORT_DIPSETTING( 0x04, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x00, DEF_STR( On ) ) - PORT_DIPNAME( 0x08, 0x00, DEF_STR( Unknown ) ) PORT_DIPLOCATION("SW3:4") - PORT_DIPSETTING( 0x08, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x00, DEF_STR( On ) ) -INPUT_PORTS_END - -static INPUT_PORTS_START ( mp_sonic ) - PORT_INCLUDE( megaplay ) - - PORT_MODIFY("DSW1") /* DSW C (per game settings) */ - PORT_DIPNAME( 0x03, 0x01, "Initial Players" ) PORT_DIPLOCATION("SW3:1,2") - PORT_DIPSETTING( 0x00, "4" ) - PORT_DIPSETTING( 0x01, "3" ) - PORT_DIPSETTING( 0x02, "2" ) - PORT_DIPSETTING( 0x03, "1" ) - PORT_DIPNAME( 0x0c, 0x0c, DEF_STR( Difficulty ) ) PORT_DIPLOCATION("SW3:3,4") - PORT_DIPSETTING( 0x00, DEF_STR( Hardest ) ) - PORT_DIPSETTING( 0x04, DEF_STR( Hard ) ) - PORT_DIPSETTING( 0x08, DEF_STR( Easy ) ) - PORT_DIPSETTING( 0x0c, DEF_STR( Normal ) ) - // Who knows... -// PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_NAME("0x6201 bit 4") PORT_CODE(KEYCODE_G) -// PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_NAME("0x6201 bit 5") PORT_CODE(KEYCODE_H) -// PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_NAME("0x6201 bit 6") PORT_CODE(KEYCODE_J) -// PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_NAME("0x6201 bit 7") PORT_CODE(KEYCODE_K) -INPUT_PORTS_END - -static INPUT_PORTS_START ( mp_gaxe2 ) - PORT_INCLUDE( megaplay ) - - PORT_MODIFY("DSW1") /* DSW C (per game settings) */ - PORT_DIPNAME( 0x01, 0x01, DEF_STR( Difficulty ) ) PORT_DIPLOCATION("SW3:1") - PORT_DIPSETTING( 0x01, DEF_STR( Normal ) ) - PORT_DIPSETTING( 0x00, DEF_STR( Hard ) ) - PORT_DIPNAME( 0x02, 0x00, "Life" ) PORT_DIPLOCATION("SW3:2") - PORT_DIPSETTING( 0x02, "1" ) - PORT_DIPSETTING( 0x00, "2" ) - PORT_DIPNAME( 0x04, 0x04, "Initial Players" ) PORT_DIPLOCATION("SW3:3") - PORT_DIPSETTING( 0x00, "1" ) - PORT_DIPSETTING( 0x04, "2" ) - PORT_DIPNAME( 0x08, 0x00, "Timer" ) PORT_DIPLOCATION("SW3:4") - PORT_DIPSETTING( 0x08, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x00, DEF_STR( On ) ) - // Who knows... -// PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_NAME("0x6201 bit 4") PORT_CODE(KEYCODE_G) -// PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_NAME("0x6201 bit 5") PORT_CODE(KEYCODE_H) -// PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_NAME("0x6201 bit 6") PORT_CODE(KEYCODE_J) -// PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_NAME("0x6201 bit 7") PORT_CODE(KEYCODE_K) -INPUT_PORTS_END - -#ifdef UNUSED_DEFINITION -static INPUT_PORTS_START ( mp_col3 ) - PORT_INCLUDE( megaplay ) - - PORT_MODIFY("DSW1") /* DSW C (per game settings) */ - PORT_DIPNAME( 0x01, 0x01, DEF_STR( Language ) ) PORT_DIPLOCATION("SW3:1") - PORT_DIPSETTING( 0x01, DEF_STR( English ) ) - PORT_DIPSETTING( 0x00, DEF_STR( Japanese ) ) - PORT_DIPNAME( 0x02, 0x02, "2P Mode Games" ) PORT_DIPLOCATION("SW3:2") - PORT_DIPSETTING( 0x02, "1" ) - PORT_DIPSETTING( 0x00, "3" ) - PORT_DIPNAME( 0x0c, 0x0c, "Speed / Difficulty" ) PORT_DIPLOCATION("SW3:3,4") - PORT_DIPSETTING( 0x08, "Slow" ) - PORT_DIPSETTING( 0x0c, "Middle" ) - PORT_DIPSETTING( 0x04, "Fast" ) - PORT_DIPSETTING( 0x00, "Max" ) - // Who knows... -// PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_NAME("0x6201 bit 4") PORT_CODE(KEYCODE_G) -// PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_NAME("0x6201 bit 5") PORT_CODE(KEYCODE_H) -// PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_NAME("0x6201 bit 6") PORT_CODE(KEYCODE_J) -// PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_NAME("0x6201 bit 7") PORT_CODE(KEYCODE_K) -INPUT_PORTS_END -#endif - -static INPUT_PORTS_START ( mp_twc ) - PORT_INCLUDE( megaplay ) - - PORT_MODIFY("DSW1") /* DSW C (per game settings) */ - PORT_DIPNAME( 0x01, 0x01, "Time" ) PORT_DIPLOCATION("SW3:1") - PORT_DIPSETTING( 0x01, DEF_STR( Normal ) ) - PORT_DIPSETTING( 0x00, "Short" ) - PORT_DIPNAME( 0x0e, 0x08, "Level" ) PORT_DIPLOCATION("SW3:2,3,4") - PORT_DIPSETTING( 0x00, "0" ) - PORT_DIPSETTING( 0x02, "0" ) - PORT_DIPSETTING( 0x04, "5" ) - PORT_DIPSETTING( 0x06, "4" ) - PORT_DIPSETTING( 0x08, "3" ) - PORT_DIPSETTING( 0x0a, "2" ) - PORT_DIPSETTING( 0x0c, "1" ) - PORT_DIPSETTING( 0x0e, "0" ) -INPUT_PORTS_END - -static INPUT_PORTS_START ( mp_sor2 ) - PORT_INCLUDE( megaplay ) - - PORT_MODIFY("DSW1") /* DSW C (per game settings) */ - PORT_DIPNAME( 0x03, 0x01, DEF_STR( Lives ) ) PORT_DIPLOCATION("SW3:1,2") - PORT_DIPSETTING( 0x00, "4" ) - PORT_DIPSETTING( 0x01, "3" ) - PORT_DIPSETTING( 0x02, "2" ) - PORT_DIPSETTING( 0x03, "1" ) - PORT_DIPNAME( 0xc, 0x0c, DEF_STR ( Difficulty ) ) PORT_DIPLOCATION("SW3:3,4") - PORT_DIPSETTING( 0x00, DEF_STR ( Hardest ) ) - PORT_DIPSETTING( 0x04, DEF_STR ( Hard ) ) - PORT_DIPSETTING( 0x08, DEF_STR ( Easy ) ) - PORT_DIPSETTING( 0x0c, DEF_STR ( Normal ) ) -INPUT_PORTS_END - -static INPUT_PORTS_START ( mp_bio ) - PORT_INCLUDE( megaplay ) - - PORT_MODIFY("DSW1") /* DSW C (per game settings) */ - PORT_DIPNAME( 0x03, 0x03, DEF_STR( Lives ) ) PORT_DIPLOCATION("SW3:1,2") - PORT_DIPSETTING( 0x00, "5" ) - PORT_DIPSETTING( 0x01, "4" ) - PORT_DIPSETTING( 0x02, "2" ) - PORT_DIPSETTING( 0x03, "3" ) - PORT_DIPNAME( 0xc, 0x0c, DEF_STR ( Difficulty ) ) PORT_DIPLOCATION("SW3:3,4") - PORT_DIPSETTING( 0x00, DEF_STR ( Hardest ) ) - PORT_DIPSETTING( 0x04, DEF_STR ( Hard ) ) - PORT_DIPSETTING( 0x08, DEF_STR ( Easy ) ) - PORT_DIPSETTING( 0x0c, DEF_STR ( Normal ) ) -INPUT_PORTS_END - -static INPUT_PORTS_START ( mp_gslam ) - PORT_INCLUDE( megaplay ) - - PORT_MODIFY("DSW1") /* DSW C (per game settings) */ - PORT_DIPNAME( 0x07, 0x04, DEF_STR ( Game_Time ) ) PORT_DIPLOCATION("SW3:1,2,3") - PORT_DIPSETTING( 0x00, "5:00" ) - PORT_DIPSETTING( 0x01, "4:30" ) - PORT_DIPSETTING( 0x02, "4:00" ) - PORT_DIPSETTING( 0x03, "3:30" ) - PORT_DIPSETTING( 0x04, "3:00" ) - PORT_DIPSETTING( 0x05, "2:30" ) - PORT_DIPSETTING( 0x06, "2:00" ) - PORT_DIPSETTING( 0x07, "1:30" ) - PORT_DIPNAME( 0x08, 0x08, "2P-Play Continue" ) PORT_DIPLOCATION("SW3:4") - PORT_DIPSETTING( 0x00, "1 Credit" ) - PORT_DIPSETTING( 0x08, "2 Credits" ) -INPUT_PORTS_END - -static INPUT_PORTS_START ( mp_mazin ) - PORT_INCLUDE( megaplay ) - - PORT_MODIFY("DSW1") /* DSW C (per game settings) */ - PORT_DIPNAME( 0x03, 0x02, "Initial Player" ) PORT_DIPLOCATION("SW3:1,2") - PORT_DIPSETTING( 0x00, "2" ) - PORT_DIPSETTING( 0x01, "1" ) - PORT_DIPSETTING( 0x02, "3" ) - PORT_DIPSETTING( 0x03, "4" ) - PORT_DIPNAME( 0x04, 0x04, DEF_STR ( Difficulty ) ) PORT_DIPLOCATION("SW3:3") - PORT_DIPSETTING( 0x04, DEF_STR ( Hard ) ) - PORT_DIPSETTING( 0x00, DEF_STR ( Normal ) ) - PORT_DIPNAME( 0x08, 0x08, "Title" ) PORT_DIPLOCATION("SW3:4") - PORT_DIPSETTING( 0x08, "EUROPE" ) - PORT_DIPSETTING( 0x00, "U.S.A" ) -INPUT_PORTS_END - -static INPUT_PORTS_START ( mp_soni2 ) - PORT_INCLUDE( megaplay ) - - PORT_MODIFY("DSW1") /* DSW C (per game settings) */ - PORT_DIPNAME( 0x03, 0x01, "Initial Players (Normal mode)" ) PORT_DIPLOCATION("SW3:1,2") - PORT_DIPSETTING( 0x00, "4" ) - PORT_DIPSETTING( 0x01, "3" ) - PORT_DIPSETTING( 0x02, "2" ) - PORT_DIPSETTING( 0x03, "1" ) - PORT_DIPNAME( 0x0c, 0x0c, "Initial Players (Dual mode)" ) PORT_DIPLOCATION("SW3:3,4") - PORT_DIPSETTING( 0x00, "4" ) - PORT_DIPSETTING( 0x04, "2" ) - PORT_DIPSETTING( 0x08, "1" ) - PORT_DIPSETTING( 0x0c, "3" ) -INPUT_PORTS_END - -static INPUT_PORTS_START ( mp_shnb3 ) - PORT_INCLUDE( megaplay ) - - PORT_MODIFY("DSW1") /* DSW C (per game settings) */ - PORT_DIPNAME( 0x03, 0x01, DEF_STR( Lives ) ) PORT_DIPLOCATION("SW3:1,2") - PORT_DIPSETTING( 0x00, "4" ) - PORT_DIPSETTING( 0x01, "3" ) - PORT_DIPSETTING( 0x02, "2" ) - PORT_DIPSETTING( 0x03, "1" ) - PORT_DIPNAME( 0xc, 0x0c, DEF_STR ( Difficulty ) ) PORT_DIPLOCATION("SW3:3,4") - PORT_DIPSETTING( 0x00, "Expert" ) - PORT_DIPSETTING( 0x04, DEF_STR ( Hard ) ) - PORT_DIPSETTING( 0x08, DEF_STR ( Easy ) ) - PORT_DIPSETTING( 0x0c, DEF_STR ( Normal ) ) -INPUT_PORTS_END - -static INPUT_PORTS_START ( mp_gunhe ) - PORT_INCLUDE( megaplay ) - - PORT_MODIFY("DSW1") /* DSW C (per game settings) */ - PORT_DIPNAME( 0x03, 0x01, "Initial Players" ) PORT_DIPLOCATION("SW3:1,2") - PORT_DIPSETTING( 0x00, "4" ) - PORT_DIPSETTING( 0x01, "3" ) - PORT_DIPSETTING( 0x02, "2" ) - PORT_DIPSETTING( 0x03, "1" ) - PORT_DIPNAME( 0x0c, 0x0c, DEF_STR ( Difficulty ) ) PORT_DIPLOCATION("SW3:3,4") - PORT_DIPSETTING( 0x00, "Expert" ) - PORT_DIPSETTING( 0x04, DEF_STR ( Hard ) ) - PORT_DIPSETTING( 0x08, DEF_STR ( Easy ) ) - PORT_DIPSETTING( 0x0c, DEF_STR ( Normal ) ) -INPUT_PORTS_END - -/*MEGAPLAY specific*/ - -READ_LINE_MEMBER(mplay_state::start1_r) -{ - return BIT(m_bios_bank, 4); -} - -READ_LINE_MEMBER(mplay_state::start2_r) -{ - return BIT(m_bios_bank, 5); -} - -WRITE8_MEMBER(mplay_state::bios_banksel_w) -{ -/* Multi-slot note: - Bits 0 and 1 appear to determine the selected game slot. - It should be possible to multiplex different game ROMs at - 0x000000-0x3fffff based on these bits. -*/ - if (BIT(m_bios_bank ^ data, 4)) - logerror("BIOS: P1 Start %sactive\n", BIT(data, 4) ? "in" : ""); - if (BIT(m_bios_bank ^ data, 5)) - logerror("BIOS: P2 Start %sactive\n", BIT(data, 5) ? "in" : ""); - m_bios_bank = data; - m_bios_mode = MP_ROM; -// logerror("BIOS: ROM bank %i selected [0x%02x]\n", m_bios_bank >> 6, data); -} - -WRITE8_MEMBER(mplay_state::bios_gamesel_w) -{ - m_bios_6403 = data; - -// logerror("BIOS: 0x6403 write: 0x%02x\n",data); - m_bios_mode = BIT(data, 4); -} - -WRITE16_MEMBER(mplay_state::mp_io_write) -{ - if (offset == 0x03) - m_megadrive_io_data_regs[2] = (data & m_megadrive_io_ctrl_regs[2]) | (m_megadrive_io_data_regs[2] & ~m_megadrive_io_ctrl_regs[2]); - else - megadriv_68k_io_write(space, offset & 0x1f, data, 0xffff); -} - -READ16_MEMBER(mplay_state::mp_io_read) -{ - if (offset == 0x03) - return m_megadrive_io_data_regs[2]; - else - return megadriv_68k_io_read(space, offset & 0x1f, 0xffff); -} - -READ8_MEMBER(mplay_state::bank_r) -{ - uint8_t* bank = memregion("mtbios")->base(); - uint32_t fulladdress = m_bios_bank_addr + offset; - - if (fulladdress <= 0x3fffff) // ROM addresses - { - if (m_bios_mode == MP_ROM) - { - int sel = (m_bios_bank >> 6) & 0x03; - return bank[sel * 0x8000 + offset]; - } - else if (m_bios_width & 0x08) - { - if (offset >= 0x2000) - return m_ic36_ram[offset - 0x2000]; - else - return m_ic37_ram[(0x2000 * (m_bios_bank & 0x03)) + offset]; - } - else - { - return memregion("maincpu")->as_u8(BYTE_XOR_BE(fulladdress)); - } - } - else if (fulladdress >= 0xa10000 && fulladdress <= 0xa1001f) // IO access - { - return mp_io_read(space, (offset & 0x1f) / 2, 0xffff); - } - else - { - printf("bank_r fulladdress %08x\n", fulladdress); - return 0x00; - } - -} - -WRITE8_MEMBER(mplay_state::bank_w) -{ - uint32_t fulladdress = m_bios_bank_addr + offset; - - if (fulladdress <= 0x3fffff && m_bios_width & 0x08) // ROM / Megaplay Custom Addresses - { - if (offset >= 0x2000) - m_ic36_ram[offset - 0x2000] = data; - else - m_ic37_ram[(0x2000 * (m_bios_bank & 0x03)) + offset] = data; - } - else if (fulladdress >= 0xa10000 && fulladdress <=0xa1001f) // IO Access - { - mp_io_write(space, (offset & 0x1f) / 2, data, 0xffff); - } - else - { - printf("bank_w fulladdress %08x\n", fulladdress); - } -} - - -/* Megaplay BIOS handles regs[2] at start in a different way compared to megadrive */ -/* other io data/ctrl regs are dealt with exactly like in the console */ - -READ8_MEMBER(mplay_state::bios_6402_r) -{ - return m_megadrive_io_data_regs[2];// & 0xfe; -} - -WRITE8_MEMBER(mplay_state::bios_6402_w) -{ - m_megadrive_io_data_regs[2] = (m_megadrive_io_data_regs[2] & 0x07) | ((data & 0x70) >> 1); -// logerror("BIOS: 0x6402 write: 0x%02x\n", data); -} - -READ8_MEMBER(mplay_state::bios_6204_r) -{ - return m_megadrive_io_data_regs[2]; -// return (m_bios_width & 0xf8) + (m_bios_6204 & 0x07); -} - -WRITE8_MEMBER(mplay_state::bios_width_w) -{ - m_bios_width = data; - m_megadrive_io_data_regs[2] = (m_megadrive_io_data_regs[2] & 0x07) | ((data & 0xf8)); -// logerror("BIOS: 0x6204 - Width write: %02x\n", data); -} - -READ8_MEMBER(mplay_state::bios_6404_r) -{ -// logerror("BIOS: 0x6404 read: returned 0x%02x\n",bios_6404 | (bios_6403 & 0x10) >> 4); - return ((m_bios_6403 & 0x10) >> 4); -// return m_bios_6404 | (m_bios_6403 & 0x10) >> 4; -} - -WRITE8_MEMBER(mplay_state::bios_6404_w) -{ - if(((m_bios_6404 & 0x0c) == 0x00) && ((data & 0x0c) == 0x0c)) - m_maincpu->pulse_input_line(INPUT_LINE_RESET, attotime::zero); - m_bios_6404 = data; - -// logerror("BIOS: 0x6404 write: 0x%02x\n", data); -} - -READ8_MEMBER(mplay_state::bios_6600_r) -{ -/* Multi-slot note: - 0x6600 appears to be used to check for extra slots being used. - Enter the following line in place of the return statement in this - function to make the BIOS check all 4 slots (3 and 4 will be "not used") - return (m_bios_6600 & 0xfe) | (m_bios_bank & 0x01); -*/ - return m_bios_6600;// & 0xfe; -} - -WRITE8_MEMBER(mplay_state::bios_6600_w) -{ - m_bios_6600 = data; -// logerror("BIOS: 0x6600 write: 0x%02x\n",data); -} - -WRITE8_MEMBER(mplay_state::game_w) -{ - if (m_readpos == 1) - m_game_banksel = 0; - m_game_banksel |= (1 << (m_readpos - 1)) * (data & 0x01); - - m_readpos++; - - if (m_readpos > 9) - { - m_bios_mode = MP_GAME; - m_readpos = 1; -// popmessage("Game bank selected: 0x%03x", m_game_banksel); - logerror("BIOS [0x%04x]: 68K address space bank selected: 0x%03x\n", m_bioscpu->pcbase(), m_game_banksel); - } - - m_bios_bank_addr = ((m_bios_bank_addr >> 1) | (data << 23)) & 0xff8000; - logerror("BIOS bank addr = %X\n", m_bios_bank_addr); -} - -void mplay_state::megaplay_bios_map(address_map &map) -{ - map(0x0000, 0x3fff).rom(); - map(0x4000, 0x4fff).ram(); - map(0x5000, 0x5fff).ram(); - map(0x6000, 0x6000).w(FUNC(mplay_state::game_w)); - map(0x6200, 0x6207).rw("io1", FUNC(cxd1095_device::read), FUNC(cxd1095_device::write)); - map(0x6400, 0x6407).rw("io2", FUNC(cxd1095_device::read), FUNC(cxd1095_device::write)); - map(0x6600, 0x6600).rw(FUNC(mplay_state::bios_6600_r), FUNC(mplay_state::bios_6600_w)); - map(0x6800, 0x77ff).ram().share("ic3_ram"); - map(0x8000, 0xffff).rw(FUNC(mplay_state::bank_r), FUNC(mplay_state::bank_w)); -} - - - -READ8_MEMBER(mplay_state::vdp1_count_r) -{ - if (offset & 0x01) - return m_vdp1->hcount_read(); - else - return m_vdp1->vcount_read(); -} - -void mplay_state::megaplay_bios_io_map(address_map &map) -{ - map.global_mask(0xff); - map(0x7f, 0x7f).w(m_vdp1, FUNC(sega315_5124_device::psg_w)); - - map(0x40, 0x41).mirror(0x3e).r(FUNC(mplay_state::vdp1_count_r)); - map(0x80, 0x80).mirror(0x3e).rw(m_vdp1, FUNC(sega315_5124_device::data_read), FUNC(sega315_5124_device::data_write)); - map(0x81, 0x81).mirror(0x3e).rw(m_vdp1, FUNC(sega315_5124_device::control_read), FUNC(sega315_5124_device::control_write)); -} - - -uint32_t mplay_state::screen_update_megplay(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) -{ - //printf("megplay vu\n"); - screen_update_megadriv(screen, bitmap, cliprect); - //m_vdp1->screen_update(screen, bitmap, cliprect); - - // TODO : the overlay (256 pixels wide) is actually stretched over the 320 resolution genesis output, reference is https://youtu.be/Oir1Wp6yOq0. - // if it's meant to be stretched we'll have to multiply the entire output x4 for the Genesis VDP and x5 for the SMS VDP to get a common 1280 pixel wide image - - // overlay, only drawn for pixels != 0 - const u32 width = sega315_5124_device::WIDTH - (sega315_5124_device::LBORDER_START + sega315_5124_device::LBORDER_WIDTH); - for (int y = 0; y < 224; y++) - { - uint32_t* lineptr = &bitmap.pix32(y); - uint32_t* srcptr = &m_vdp1->get_bitmap().pix32(y + sega315_5124_device::TBORDER_START + sega315_5124_device::NTSC_224_TBORDER_HEIGHT, sega315_5124_device::LBORDER_START + sega315_5124_device::LBORDER_WIDTH); - uint8_t* y1ptr = &m_vdp1->get_y1_bitmap().pix8(y + sega315_5124_device::TBORDER_START + sega315_5124_device::NTSC_224_TBORDER_HEIGHT, sega315_5124_device::LBORDER_START + sega315_5124_device::LBORDER_WIDTH); - - for (int srcx = 0, xx = 0, dstx = 0; srcx < width; dstx++) - { - uint32_t src = srcptr[srcx] & 0xffffff; - - if (y1ptr[srcx]) - { - lineptr[dstx] = src; - } - if (++xx >= 5) - { - srcx++; - xx = 0; - } - } - } - - return 0; -} - -MACHINE_RESET_MEMBER(mplay_state,megaplay) -{ - m_bios_mode = MP_ROM; - m_bios_bank_addr = 0; - m_readpos = 1; - MACHINE_RESET_CALL_MEMBER(megadriv); -} - -void mplay_state::megaplay(machine_config &config) -{ - /* basic machine hardware */ - md_ntsc(config); - - /* The Megaplay has an extra BIOS cpu which drives an SMS VDP - which includes an SN76496 for sound */ - Z80(config, m_bioscpu, MASTER_CLOCK / 15); /* ?? */ - m_bioscpu->set_addrmap(AS_PROGRAM, &mplay_state::megaplay_bios_map); - m_bioscpu->set_addrmap(AS_IO, &mplay_state::megaplay_bios_io_map); - - config.set_maximum_quantum(attotime::from_hz(6000)); - - cxd1095_device &io1(CXD1095(config, "io1")); - io1.in_porta_cb().set_ioport("DSW0"); - io1.in_portb_cb().set_ioport("DSW1"); - io1.out_portd_cb().set(FUNC(mplay_state::bios_banksel_w)); - io1.in_porte_cb().set(FUNC(mplay_state::bios_6204_r)); - io1.out_porte_cb().set(FUNC(mplay_state::bios_width_w)); - - cxd1095_device &io2(CXD1095(config, "io2")); - io2.in_porta_cb().set_ioport("TEST"); - io2.in_portb_cb().set_ioport("COIN"); - io2.in_portc_cb().set(FUNC(mplay_state::bios_6402_r)); - io2.out_portc_cb().set(FUNC(mplay_state::bios_6402_w)); - io2.out_portd_cb().set(FUNC(mplay_state::bios_gamesel_w)); - io2.in_porte_cb().set(FUNC(mplay_state::bios_6404_r)); - io2.out_porte_cb().set(FUNC(mplay_state::bios_6404_w)); - - m_vdp->set_lcm_scaling(true); - - /* New update functions to handle the extra layer */ - subdevice<screen_device>("megadriv")->set_raw((XTAL(10'738'635) * 5)/2, - sega315_5124_device::WIDTH * 5, (sega315_5124_device::LBORDER_START + sega315_5124_device::LBORDER_WIDTH) * 5, (sega315_5124_device::LBORDER_START + sega315_5124_device::LBORDER_WIDTH + 256) * 5, - sega315_5124_device::HEIGHT_NTSC, sega315_5124_device::TBORDER_START + sega315_5124_device::NTSC_224_TBORDER_HEIGHT, sega315_5124_device::TBORDER_START + sega315_5124_device::NTSC_224_TBORDER_HEIGHT + 224); - subdevice<screen_device>("megadriv")->set_screen_update(FUNC(mplay_state::screen_update_megplay)); - - // Megaplay has an additional SMS VDP as an overlay - SEGA315_5246(config, m_vdp1, MASTER_CLOCK / 5); /* ?? */ - m_vdp1->set_screen("megadriv"); - m_vdp1->set_hcounter_divide(5); - m_vdp1->set_is_pal(false); - m_vdp1->n_int().set_inputline(m_bioscpu, 0); - m_vdp1->add_route(ALL_OUTPUTS, "lspeaker", 0.25); - m_vdp1->add_route(ALL_OUTPUTS, "rspeaker", 0.25); -} - - -/* MegaPlay Games - Modified Genesis games */ - -#define ROM_LOAD_BIOS(bios,name,offset,length,hash) \ - ROMX_LOAD(name, offset, length, hash, ROM_BIOS(bios)) - -#define MEGAPLAY_BIOS \ - ROM_SYSTEM_BIOS( 0, "ver1", "Megaplay Bios (Ver. 1)" ) \ - ROM_LOAD_BIOS( 0, "ep15294.ic2", 0x000000, 0x20000, CRC(aa8dc2d8) SHA1(96771ad7b79dc9c83a1594243250d65052d23176) ) \ - ROM_SYSTEM_BIOS( 1, "ver2", "Megaplay Bios (Ver. 2)" ) /* this one doesn't boot .. dump was verified with another working pcb */ \ - ROM_LOAD_BIOS( 1, "epr-a15294.ic2",0x000000, 0x20000, CRC(f97c68aa) SHA1(bcabc879950bca1ced11c550a484e697ec5706b2) ) -ROM_START( megaplay ) - ROM_REGION( 0x400000, "maincpu", ROMREGION_ERASEFF ) - - ROM_REGION( 0x8000, "user1", ROMREGION_ERASEFF ) - - ROM_REGION( 0x20000, "mtbios", 0 ) /* Bios */ - MEGAPLAY_BIOS -ROM_END - -/* The system appears to access the instruction rom at - 0x300000 in the 68k space (rom window from z80 side) - - This probably means the maximum 68k rom size is 0x2fffff for MegaPlay -*/ - -ROM_START( mp_sonic ) /* Sonic */ - ROM_REGION( 0x400000, "maincpu", 0 ) - ROM_LOAD16_BYTE( "ep15177.ic2", 0x000000, 0x040000, CRC(a389b03b) SHA1(8e9e1cf3dd65ddf08757f5a1ce472130c902ea2c) ) - ROM_LOAD16_BYTE( "ep15176.ic1", 0x000001, 0x040000, CRC(d180cc21) SHA1(62805cfaaa80c1da6146dd89fc2b49d819fd4f22) ) - /* Game Instruction rom copied to 0x300000 - 0x310000 (odd / even bytes equal) */ - - ROM_REGION( 0x8000, "user1", 0 ) /* Game Instructions */ - ROM_LOAD( "ep15175-01.ic3", 0x000000, 0x08000, CRC(99246889) SHA1(184aa3b7fdedcf578c5e34edb7ed44f57f832258) ) - - ROM_REGION( 0x20000, "mtbios", 0 ) /* Bios */ - MEGAPLAY_BIOS -ROM_END - -/* this cart looks to be a conversion from something else.. sega rom numbers were missing - but the code looks like it's probably real */ -/* pcb 171-5834 */ -ROM_START( mp_col3 ) /* Columns 3 */ - ROM_REGION( 0x400000, "maincpu", 0 ) - ROM_LOAD16_BYTE( "3.ic2", 0x000000, 0x040000, CRC(a1602235) SHA1(38751b585849c8966acc3f508714937fe29dcf5c) ) - ROM_LOAD16_BYTE( "2.ic1", 0x000001, 0x040000, CRC(999b2fe6) SHA1(ad967a28e4eebd7b01273e4e04c35a0198ef834a) ) - /* Game Instruction rom copied to 0x300000 - 0x310000 (odd / even bytes equal) */ - - ROM_REGION( 0x8000, "user1", 0 ) /* Game Instructions */ - ROM_LOAD( "1.ic3", 0x000000, 0x08000, CRC(dac9bf91) SHA1(0117972a7181f8aaf942a259cc8764b821031253) ) - - ROM_REGION( 0x20000, "mtbios", 0 ) /* Bios */ - MEGAPLAY_BIOS -ROM_END - -ROM_START( mp_gaxe2 ) /* Golden Axe 2, revision B */ - ROM_REGION( 0x400000, "maincpu", 0 ) - ROM_LOAD16_BYTE( "ep15179b.ic2", 0x000000, 0x040000, CRC(00d97b84) SHA1(914bbf566ddf940aab67b92af237d251650ddadf) ) - ROM_LOAD16_BYTE( "ep15178b.ic1", 0x000001, 0x040000, CRC(2ea576db) SHA1(6d96b948243533de1f488b1f80e0d5431a4f1f53) ) - /* Game Instruction rom copied to 0x300000 - 0x310000 (odd / even bytes equal) */ - - ROM_REGION( 0x8000, "user1", 0 ) /* Game Instructions */ - ROM_LOAD( "ep15175-02b.ic3", 0x000000, 0x08000, CRC(3039b653) SHA1(b19874c74d0fc0cca1169f62e5e74f0e8ca83679) ) // 15175-02b.ic3 - - ROM_REGION( 0x20000, "mtbios", 0 ) /* Bios */ - MEGAPLAY_BIOS -ROM_END - -ROM_START( mp_gaxe2a ) /* Golden Axe 2 */ - ROM_REGION( 0x400000, "maincpu", 0 ) - ROM_LOAD16_BYTE( "epr-15179.ic2", 0x000000, 0x040000, CRC(d35f1a35) SHA1(3105cd3b55f65337863703db04527fe298fc04e0) ) - ROM_LOAD16_BYTE( "epr-15178.ic1", 0x000001, 0x040000, CRC(2c6b6b76) SHA1(25577f49ecad451c217da9cacbd78ffca9dca24e) ) - /* Game Instruction rom copied to 0x300000 - 0x310000 (odd / even bytes equal) */ - - ROM_REGION( 0x8000, "user1", 0 ) /* Game Instructions */ - ROM_LOAD( "epr-15175-02.ic3", 0x000000, 0x08000, CRC(cfc87f91) SHA1(110609094aa6d848bec613faa0558db7ad272b77) ) - - ROM_REGION( 0x20000, "mtbios", 0 ) /* Bios */ - MEGAPLAY_BIOS -ROM_END - -ROM_START( mp_gslam ) /* Grand Slam */ - ROM_REGION( 0x400000, "maincpu", 0 ) - ROM_LOAD16_BYTE( "epr-15181.ic2", 0x000000, 0x040000, CRC(642437c1) SHA1(cbf88e196c04b6d886bf9642b69bf165045510fe) ) - ROM_LOAD16_BYTE( "epr-15180.ic1", 0x000001, 0x040000, CRC(73bb48f1) SHA1(981b64f834d5618599352f5fad683bf232390ba3) ) - /* Game Instruction rom copied to 0x300000 - 0x310000 (odd / even bytes equal) */ - - ROM_REGION( 0x8000, "user1", 0 ) /* Game Instructions */ - ROM_LOAD( "epr-15175-03.ic3", 0x000000, 0x08000, CRC(70ea1aec) SHA1(0d9d82a1f8aa51d02707f7b343e7cfb6591efccd) ) // 15175-02b.ic3 - - ROM_REGION( 0x20000, "mtbios", 0 ) /* Bios */ - MEGAPLAY_BIOS -ROM_END - - -ROM_START( mp_twcup ) /* Tecmo World Cup */ - ROM_REGION( 0x400000, "maincpu", 0 ) - ROM_LOAD16_BYTE( "ep15183.ic2", 0x000000, 0x040000, CRC(8b79b861) SHA1(c72af72840513b82f2562409eccdf13b031bf3c0) ) - ROM_LOAD16_BYTE( "ep15182.ic1", 0x000001, 0x040000, CRC(eb8325c3) SHA1(bb21ac926c353e14184dd476222bc6a8714606e5) ) - /* Game Instruction rom copied to 0x300000 - 0x310000 (odd / even bytes equal) */ - - ROM_REGION( 0x8000, "user1", 0 ) /* Game Instructions */ - ROM_LOAD( "ep15175-04.ic3", 0x000000, 0x08000, CRC(faf7c030) SHA1(16ef405335b4d3ecb0b7d97b088dafc4278d4726) ) - - ROM_REGION( 0x20000, "mtbios", 0 ) /* Bios */ - MEGAPLAY_BIOS -ROM_END - -ROM_START( mp_sor2 ) /* Streets of Rage 2 */ - ROM_REGION( 0x400000, "maincpu", 0 ) - ROM_LOAD16_WORD_SWAP( "mpr-15425.ic1", 0x000000, 0x200000, CRC(cd6376af) SHA1(57ec210975e40505649f152b60ef54f99da31f0e) ) - /* Game Instruction rom copied to 0x300000 - 0x310000 (odd / even bytes equal) */ - - ROM_REGION( 0x8000, "user1", 0 ) /* Game Instructions */ - ROM_LOAD( "epr-15175-05.ic2", 0x000000, 0x08000, CRC(1df5347c) SHA1(faced2e875e1914392f61577b5256d006eebeef9) ) - - ROM_REGION( 0x20000, "mtbios", 0 ) /* Bios */ - MEGAPLAY_BIOS -ROM_END - -ROM_START( mp_bio ) /* Bio Hazard Battle */ - ROM_REGION( 0x400000, "maincpu", 0 ) - ROM_LOAD16_WORD_SWAP( "mpr-15699-f.ic1", 0x000000, 0x100000, CRC(4b193229) SHA1(f8629171ae9b4792f142f6957547d886e5cc6817) ) - /* Game Instruction rom copied to 0x300000 - 0x310000 (odd / even bytes equal) */ - - ROM_REGION( 0x8000, "user1", 0 ) /* Game Instructions */ - ROM_LOAD( "epr-15175-06.ic2", 0x000000, 0x08000, CRC(1ef64e41) SHA1(13984b714b014ea41963b70de74a5358ed223bc5) ) - - ROM_REGION( 0x20000, "mtbios", 0 ) /* Bios */ - MEGAPLAY_BIOS -ROM_END - -ROM_START( mp_soni2 ) /* Sonic The Hedgehog 2 */ - ROM_REGION( 0x400000, "maincpu", 0 ) - ROM_LOAD16_WORD_SWAP( "mpr-16011.ic1", 0x000000, 0x100000, CRC(3d7bf98a) SHA1(dce0e4e8f2573e0ffe851edaa235e4ed9e61ee2d) ) - /* Game Instruction rom copied to 0x300000 - 0x310000 (odd / even bytes equal) */ - - ROM_REGION( 0x8000, "user1", 0 ) /* Game Instructions */ - ROM_LOAD( "epr-15175-07.ic1", 0x000000, 0x08000, CRC(bb5f67f0) SHA1(33b7a5d14015a5fcf41976a8f648f8f48ce9bb03) ) - - ROM_REGION( 0x20000, "mtbios", 0 ) /* Bios */ - MEGAPLAY_BIOS -ROM_END - -ROM_START( mp_mazin ) /* Mazin Wars */ - ROM_REGION( 0x400000, "maincpu", 0 ) - ROM_LOAD16_WORD_SWAP( "mpr-16460.ic1", 0x000000, 0x100000, CRC(e9635a83) SHA1(ab3afa11656f0ae3a50c957dce012fb15d3992e0) ) - /* Game Instruction rom copied to 0x300000 - 0x310000 (odd / even bytes equal) */ - - ROM_REGION( 0x8000, "user1", 0 ) /* Game Instructions */ - ROM_LOAD( "epr-15175-11.ic2", 0x000000, 0x08000, CRC(bb651120) SHA1(81cb736f2732373e260dde162249c1d29a3489c3) ) - - ROM_REGION( 0x20000, "mtbios", 0 ) /* Bios */ - MEGAPLAY_BIOS -ROM_END - -ROM_START( mp_shnb3 ) /* Shinobi 3 */ - ROM_REGION( 0x400000, "maincpu", 0 ) - ROM_LOAD16_WORD_SWAP( "mpr-16197.ic1", 0x000000, 0x100000, CRC(48162361) SHA1(77d544509339b5ddf6d19941377e81d29e9e21dc) ) - /* Game Instruction rom copied to 0x300000 - 0x310000 (odd / even bytes equal) */ - - ROM_REGION( 0x8000, "user1", 0 ) /* Game Instructions */ - ROM_LOAD( "epr-15175-09.ic2", 0x000000, 0x08000, CRC(6254e45a) SHA1(8667922a6eade03c964ce224f7fa39ba871c60a4) ) - - ROM_REGION( 0x20000, "mtbios", 0 ) /* Bios */ - MEGAPLAY_BIOS -ROM_END - -ROM_START( mp_gunhe ) /* Gunstar Heroes */ - ROM_REGION( 0x400000, "maincpu", 0 ) - ROM_LOAD16_WORD_SWAP( "mpr-16390.ic1", 0x000000, 0x100000, CRC(d963a748) SHA1(adf231c5180a9307fd6675fe77fffd4c5bfa3d6a) ) - /* Game Instruction rom copied to 0x300000 - 0x310000 (odd / even bytes equal) */ - - ROM_REGION( 0x8000, "user1", 0 ) /* Game Instructions */ - ROM_LOAD( "epr-15175-10.ic2", 0x000000, 0x08000, CRC(e4f08233) SHA1(b7e0ad3f6ae1c56df6ec76375842050f08afcbef) ) - - ROM_REGION( 0x20000, "mtbios", 0 ) /* Bios */ - MEGAPLAY_BIOS -ROM_END - -READ16_MEMBER(mplay_state::extra_ram_r ) -{ - return m_ic36_ram[(offset << 1) ^ 1] | (m_ic36_ram[(offset << 1)] << 8); -} - -WRITE16_MEMBER(mplay_state::extra_ram_w ) -{ - if (!ACCESSING_BITS_0_7) // byte (MSB) access - { - m_ic36_ram[(offset << 1)] = (data & 0xff00) >> 8; - } - else if (!ACCESSING_BITS_8_15) - { - m_ic36_ram[(offset << 1) ^ 1] = (data & 0x00ff); - } - else // for WORD access only the MSB is used, LSB is ignored - { - m_ic36_ram[(offset << 1)] = (data & 0xff00) >> 8; - } -} - - -void mplay_state::init_megaplay() -{ - // copy game instruction rom to main map. maybe this should just be accessed - // through a handler instead? - uint8_t *instruction_rom = memregion("user1")->base(); - uint8_t *game_rom = memregion("maincpu")->base(); - - for (int offs = 0; offs < 0x8000; offs++) - { - uint8_t dat = instruction_rom[offs]; - - game_rom[0x300000 + offs * 2] = dat; - game_rom[0x300001 + offs * 2] = dat; - } - - // to support the old code - m_ic36_ram = std::make_unique<uint16_t[]>(0x10000 / 2); - m_ic37_ram = std::make_unique<uint8_t[]>(0x10000); - - init_megadrij(); - m_megadrive_io_read_data_port_ptr = read8_delegate(*this, FUNC(md_base_state::megadrive_io_read_data_port_3button)); - m_megadrive_io_write_data_port_ptr = write16_delegate(*this, FUNC(md_base_state::megadrive_io_write_data_port_3button)); - - // for now ... - m_maincpu->space(AS_PROGRAM).install_readwrite_handler(0xa10000, 0xa1001f, read16_delegate(*this, FUNC(mplay_state::mp_io_read)), write16_delegate(*this, FUNC(mplay_state::mp_io_write))); - - // megaplay has ram shared with the bios cpu here - m_z80snd->space(AS_PROGRAM).install_ram(0x2000, 0x3fff, &m_ic36_ram[0]); - - // instead of a RAM mirror the 68k sees the extra ram of the 2nd z80 too - m_maincpu->space(AS_PROGRAM).install_readwrite_handler(0xa02000, 0xa03fff, read16_delegate(*this, FUNC(mplay_state::extra_ram_r)), write16_delegate(*this, FUNC(mplay_state::extra_ram_w))); -} - -/* -Sega Mega Play Cartridges -------------------------- - -These are cart-based games for use with Sega Mega Play hardware. There are 2 known types of carts. Both carts -are very simple, almost exactly the same as Mega Tech carts. They contain just 2 or 3 ROMs. -PCB 171-6215A has locations for 2 ROMs and is dated 1991. -PCB 171-5834 has locations for 3 ROMs and is dated 1989. - - |------------------------------- ROMs ------------------------------| - | | -Game PCB # Sticker on PCB Sticker on cart IC1 IC2 IC3 -------------------------------------------------------------------------------------------------------------------------------------------- -Sonic The Hedgehog - -01 -Golden Axe 2 - -02 -Grand Slam 171-5834 837-9165-03 610-0297-03 EPR-15180 (27C020) EPR-15181 (27C020) EPR-15175-03 (27256) -Tecmo World Cup - -04 -Columns 3 171-5834 610-0297-04* 2 (27C020) 3 (27C020) 1 (27256) -Streets Of Rage II 171-6215A 837-9165-05 610-0297-05 MPR-15425 (8316200A) EPR-15175-05 (27256) n/a -Bio-Hazard Battle 171-6215A 837-9165-06 610-0298-06 MPR-15699-F (838200) EPR-15175-06 (27256) n/a -Sonic The Hedgehog 2 171-6215A 837-9165-07 610-0297-07 MPR-16011 (838200) EPR-15175-07 (27256) n/a -Shinobi III 171-6215A 837-9165-09 610-0297-09 MPR-16197 (838200) EPR-15175-09 (27256) n/a -Gunstar Heroes 171-6215A 837-9165-10 610-0297-09** MPR-16390 (838200B) EPR-15175-10 (27256) n/a -Mazin Wars 171-6215A 837-9165-11 610-0297-11 MPR-16460 (838200) EPR-15175-11 (27256) n/a - -* This is the code for Tecmo World Cup, as the ROMs in the Columns 3 cart -didn't have original Sega part numbers it's probably a converted TWC cart -** Probably reused cart case -*/ - -/* -- */ GAME( 1993, megaplay, 0, megaplay, megaplay, mplay_state, init_megaplay, ROT0, "Sega", "Mega Play BIOS", MACHINE_IS_BIOS_ROOT | MACHINE_NOT_WORKING | MACHINE_IMPERFECT_GRAPHICS ) -/* 01 */ GAME( 1993, mp_sonic, megaplay, megaplay, mp_sonic, mplay_state, init_megaplay, ROT0, "Sega", "Sonic The Hedgehog (Mega Play)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_GRAPHICS ) -/* 02 */ GAME( 1993, mp_gaxe2, megaplay, megaplay, mp_gaxe2, mplay_state, init_megaplay, ROT0, "Sega", "Golden Axe II (Mega Play) (Rev B)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_GRAPHICS ) -/* 02 */ GAME( 1993, mp_gaxe2a,mp_gaxe2, megaplay, mp_gaxe2, mplay_state, init_megaplay, ROT0, "Sega", "Golden Axe II (Mega Play)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_GRAPHICS ) -/* 03 */ GAME( 1993, mp_gslam, megaplay, megaplay, mp_gslam, mplay_state, init_megaplay, ROT0, "Sega", "Grand Slam (Mega Play)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_GRAPHICS ) -/* 04 */ GAME( 1993, mp_twcup, megaplay, megaplay, mp_twc, mplay_state, init_megaplay, ROT0, "Sega", "Tecmo World Cup (Mega Play)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_GRAPHICS ) -/* 05 */ GAME( 1993, mp_sor2, megaplay, megaplay, mp_sor2, mplay_state, init_megaplay, ROT0, "Sega", "Streets of Rage II (Mega Play)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_GRAPHICS ) -/* 06 */ GAME( 1993, mp_bio, megaplay, megaplay, mp_bio, mplay_state, init_megaplay, ROT0, "Sega", "Bio-hazard Battle (Mega Play)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_GRAPHICS ) -/* 07 */ GAME( 1993, mp_soni2, megaplay, megaplay, mp_soni2, mplay_state, init_megaplay, ROT0, "Sega", "Sonic The Hedgehog 2 (Mega Play)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_GRAPHICS ) -/* 08 - Columns 3? see below */ -/* 09 */ GAME( 1993, mp_shnb3, megaplay, megaplay, mp_shnb3, mplay_state, init_megaplay, ROT0, "Sega", "Shinobi III (Mega Play)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_GRAPHICS ) -/* 10 */ GAME( 1993, mp_gunhe, megaplay, megaplay, mp_gunhe, mplay_state, init_megaplay, ROT0, "Sega", "Gunstar Heroes (Mega Play)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_GRAPHICS ) -/* 11 */ GAME( 1993, mp_mazin, megaplay, megaplay, mp_mazin, mplay_state, init_megaplay, ROT0, "Sega", "Mazin Wars / Mazin Saga (Mega Play)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_GRAPHICS ) - -/* ?? */ GAME( 1993, mp_col3, megaplay, megaplay, megaplay, mplay_state, init_megaplay, ROT0, "Sega", "Columns III (Mega Play)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_GRAPHICS ) |