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// license:BSD-3-Clause
// copyright-holders:AJR, Roberto Fresca
/*******************************************************************************
The Boat
1987(c) Hit Gun Co, LTD.
Gambling/Amusement game
Selectable through DIP switches.
Driver by AJR.
Additional work by Roberto Fresca.
*******************************************************************************
Hardware specs...
Seems based on MSX2.
PCB is marked "TVG01"
CPU:
1x Sharp LH0080A (Z80-A). (IC26)
I/O:
2x NEC D8255AC-2 PPI. (IC23, IC27)
Sound:
1x GI AY-3-8910A. (IC18)
1x Fujitsu MB3712 (audio amp) (IC2)
Video:
1x Yamaha V9938 VDP (scratched) (IC13)
RAM:
4x Fujitsu MB81464-15 (256 Kbit DRAM) (VRAM) (IC6, IC7, IC9, IC10)
1x NEC D449C-2 (2K x 8 Static RAM) (WRK RAM) (IC1)
ROM:
2x Mitsubishi M5L27128K for program. (IC3, IC5)
3x Mitsubishi M5L27128K for graphics. (IC8, IC11, IC14)
1x Empty socket for extra data. (*) (IC16)
Other:
1x 21.47727 MHz Xtal.
1x 8 DIP switches bank.
1x 2x18 pins edge connector.
1x 2x10 pins edge connector.
(*) Note: The CE line of the extra ROM that should be located in the
empty socket, is tied to PPI port B, D3.
*******************************************************************************
Todo:
- Find the selector for the PPI2 port C multiplexed inputs.
- Demux the PPI2 port C inputs.
*******************************************************************************/
#include "emu.h"
#include "cpu/z80/z80.h"
#include "machine/i8255.h"
#include "machine/nvram.h"
#include "sound/ay8910.h"
#include "video/v9938.h"
#include "screen.h"
#include "speaker.h"
class tvg01_state : public driver_device
{
public:
tvg01_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
{
}
void boatrace(machine_config &config);
protected:
virtual void machine_start() override;
private:
void mem_map(address_map &map);
void io_map(address_map &map);
};
void tvg01_state::machine_start()
{
membank("gfxbank")->configure_entries(0, 4, memregion("gfx")->base(), 0x4000);
}
void tvg01_state::mem_map(address_map &map)
{
map(0x0000, 0x7fff).rom().region("program", 0);
map(0x8000, 0x87ff).ram().share("nvram");
map(0xc000, 0xffff).bankr("gfxbank");
}
void tvg01_state::io_map(address_map &map)
{
map.global_mask(0xff);
map(0x01, 0x01).r("psg", FUNC(ay8910_device::data_r));
map(0x02, 0x03).w("psg", FUNC(ay8910_device::data_address_w));
map(0x20, 0x23).rw("vdp", FUNC(v9938_device::read), FUNC(v9938_device::write));
map(0x80, 0x83).rw("ppi1", FUNC(i8255_device::read), FUNC(i8255_device::write));
map(0xa0, 0xa3).rw("ppi2", FUNC(i8255_device::read), FUNC(i8255_device::write));
}
static INPUT_PORTS_START(boatrace)
PORT_START("IN0")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 ) PORT_NAME("P1 - Coin (1 credit)") // P1 - coin (1 credit)
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN4 ) PORT_NAME("P2 - Key Up (10 credits)") // P2 - keyup (10 credits)
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_GAMBLE_BOOK) PORT_NAME("Analyze / Bookkeeping") // analyze (bookkeeping)
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_OTHER ) PORT_NAME("P2 - Key Out") PORT_CODE(KEYCODE_W) // P2 - keyout
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_COIN3 ) PORT_NAME("P1 - Key Up (10 credits)") // P1 - keyup (10 credits)
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_SERVICE ) PORT_NAME("Hopper") PORT_CODE(KEYCODE_H) // hopper line
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_COIN2 ) PORT_NAME("P2 - Coin (1 credit)") // P2 - coin (1 credit)
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_OTHER ) PORT_NAME("P1 - Key Out") PORT_CODE(KEYCODE_Q) // P1 - keyout
PORT_START("IN1")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_OTHER ) PORT_NAME("12, 16, 26, 45, 56, TS (take score)") PORT_CODE(KEYCODE_Z) // Both players: 12, 16, 26, 45, 56, TS (take score)
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_OTHER ) PORT_NAME("13, 23, 34, ST (start), Small") PORT_CODE(KEYCODE_X) // Both players: 13, 23, 34, ST (start), Small
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_OTHER ) PORT_NAME("14, 24, 35, SH, BG (big)") PORT_CODE(KEYCODE_C) // Both players: 14, 24, 35, SH, BG (big)
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_OTHER ) PORT_NAME("15, 25, 36, NG (next game)") PORT_CODE(KEYCODE_V) // Both players: 15, 25, 36, NG (next game)
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_OTHER ) PORT_NAME("46") PORT_CODE(KEYCODE_B) // Both players: 46
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_OTHER ) PORT_NAME("Unk-1") PORT_CODE(KEYCODE_N) // unknown
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_OTHER ) PORT_NAME("Unk-2") PORT_CODE(KEYCODE_M) // unknown
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_OTHER ) PORT_NAME("Unk-3") PORT_CODE(KEYCODE_S) // unknown
PORT_START("DSW")
PORT_DIPNAME(0x01, 0x01, DEF_STR(Unknown)) PORT_DIPLOCATION("DSW:8")
PORT_DIPSETTING(0x01, DEF_STR(Off))
PORT_DIPSETTING(0x00, DEF_STR(On))
PORT_DIPNAME(0x02, 0x02, DEF_STR(Unknown)) PORT_DIPLOCATION("DSW:7")
PORT_DIPSETTING(0x02, DEF_STR(Off))
PORT_DIPSETTING(0x00, DEF_STR(On))
PORT_DIPNAME(0x0c, 0x0c, DEF_STR(Coinage)) PORT_DIPLOCATION("DSW:6,5")
PORT_DIPSETTING(0x0c, "1 Coin 1 Credit / 1 Pulse 10 Credits")
PORT_DIPSETTING(0x08, "1 Coin 2 Credit / 1 Pulse 20 Credits")
PORT_DIPSETTING(0x04, "1 Coin 5 Credit / 1 Pulse 50 Credits")
PORT_DIPSETTING(0x00, "1 Coin 10 Credit / 1 Pulse 100 Credits")
PORT_DIPNAME(0x10, 0x10, "Key Out") PORT_DIPLOCATION("DSW:4")
PORT_DIPSETTING(0x10, DEF_STR(Off))
PORT_DIPSETTING(0x00, DEF_STR(On))
PORT_DIPNAME(0x20, 0x20, DEF_STR(Unknown)) PORT_DIPLOCATION("DSW:3")
PORT_DIPSETTING(0x20, DEF_STR(Off))
PORT_DIPSETTING(0x00, DEF_STR(On))
PORT_DIPNAME(0x40, 0x40, "Unknown (Should be OFF)") PORT_DIPLOCATION("DSW:2")
PORT_DIPSETTING(0x40, DEF_STR(Off))
PORT_DIPSETTING(0x00, DEF_STR(On))
PORT_DIPNAME(0x80, 0x80, "Test Mode") PORT_DIPLOCATION("DSW:1")
PORT_DIPSETTING(0x80, DEF_STR(Off))
PORT_DIPSETTING(0x00, DEF_STR(On))
INPUT_PORTS_END
void tvg01_state::boatrace(machine_config &config)
{
z80_device &maincpu(Z80(config, "maincpu", 21.477272_MHz_XTAL / 6)); // LH0080A
maincpu.set_addrmap(AS_PROGRAM, &tvg01_state::mem_map);
maincpu.set_addrmap(AS_IO, &tvg01_state::io_map);
NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_0); // D449C-2 + battery
i8255_device &ppi1(I8255(config, "ppi1")); // D8255AC-2
ppi1.in_pa_callback().set_ioport("IN0");
ppi1.out_pb_callback().set_membank("gfxbank").mask(0x03);
i8255_device &ppi2(I8255(config, "ppi2")); // D8255AC-2
ppi2.in_pc_callback().set_ioport("IN1");
SCREEN(config, "screen", SCREEN_TYPE_RASTER);
v9938_device &vdp(V9938(config, "vdp", 21.477272_MHz_XTAL)); // unknown type (surface-scratched 64-pin SDIP)
vdp.set_screen_ntsc("screen");
vdp.set_vram_size(0x20000); // 4x MB81464-15
vdp.int_cb().set_inputline("maincpu", INPUT_LINE_IRQ0);
SPEAKER(config, "mono").front_center();
ay8910_device &psg(AY8910(config, "psg", 21.477272_MHz_XTAL / 12)); // GI AY-3-8910A
psg.port_a_read_callback().set_ioport("DSW");
psg.add_route(ALL_OUTPUTS, "mono", 1.0);
}
ROM_START(boatrace)
ROM_REGION(0x8000, "program", 0)
ROM_LOAD("1.ic3", 0x0000, 0x4000, CRC(04a0ef56) SHA1(40256f858032efa1375d336f141dbbd08a8802f7))
ROM_LOAD("2.ic5", 0x4000, 0x4000, CRC(c18d4a61) SHA1(c40a8b7dcaa90ed871be20605fc853949361257e))
ROM_REGION(0x10000, "gfx", 0)
ROM_LOAD("3.ic8", 0x8000, 0x4000, CRC(74b44e32) SHA1(b36c90a13511c5bf4aef079ac506605096e39067))
ROM_LOAD("4.ic11", 0x4000, 0x4000, CRC(4ea36fa3) SHA1(b020a478e8dd72154916c67d71255b5a6a822d6d))
ROM_LOAD("5.ic14", 0xc000, 0x4000, CRC(7899a587) SHA1(13cbb7e837e14bc49d8b34dbf876b666cdf48979))
// Empty socket for one more ROM (IC16),
ROM_END
// YEAR NAME PARENT MACHINE INPUT STATE INIT ROT COMPANY FULLNAME FLAGS
GAME(1987, boatrace, 0, boatrace, boatrace, tvg01_state, empty_init, ROT0, "Hit Gun Co, LTD", "The Boat", MACHINE_NOT_WORKING)
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