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// license:BSD-3-Clause
// copyright-holders:Guru
/***************************************************************************
Ichi Ban Jyan
Excel, 199?
PCB Layout
----------
MJ911
|----------------------------------|
|MB3712 DSW-D DSW-C DSW-B DSW-A SW|
| M6378 BATT |
|VOL 6264 3 |
| YM2413 MJB |
|M 1 2 |
|A YM2149 MJG |-------| |
|H |ALTERA | Z80 |
|J MJR |EP1810 | |
|O | | ALTERA |
|N |-------| EP910 |
|G |
| |
| 41464 41464 |
| 41464 41464 18.432MHz|
|----------------------------------|
Notes:
Z80 clock - 6.144MHz [18.432/3]
YM2149 clock - 1.536MHz [18.432/12]
YM2413 clock - 3.072MHz [18.432/6]
VSync - 60.5686Hz
HSync - 15.510kHz
***************************************************************************/
#include "emu.h"
#include "cpu/z80/z80.h"
#include "machine/nvram.h"
#include "sound/ay8910.h"
#include "sound/ym2413.h"
#include "emupal.h"
#include "screen.h"
#include "speaker.h"
#define MAIN_CLOCK XTAL(18'432'000)
class ichibanjyan_state : public driver_device
{
public:
ichibanjyan_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
{ }
void ichibanjyan(machine_config &config);
private:
// devices
required_device<cpu_device> m_maincpu;
// driver_device overrides
virtual void machine_start() override;
virtual void machine_reset() override;
virtual void video_start() override;
uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
void mem_map(address_map &map);
void io_map(address_map &map);
void opcodes_map(address_map &map);
};
void ichibanjyan_state::video_start()
{
}
uint32_t ichibanjyan_state::screen_update( screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect )
{
return 0;
}
void ichibanjyan_state::mem_map(address_map &map)
{
map(0x0000, 0x6fff).rom().region("code", 0x10000);
map(0x7000, 0x7fff).ram().share("nvram");
map(0x8000, 0xffff).ram();
}
void ichibanjyan_state::io_map(address_map &map)
{
map.global_mask(0xff);
map(0x01, 0x01).r("aysnd", FUNC(ym2149_device::data_r));
map(0x02, 0x03).w("aysnd", FUNC(ym2149_device::data_address_w));
map(0x16, 0x17).w("ymsnd", FUNC(ym2413_device::write));
}
void ichibanjyan_state::opcodes_map(address_map &map)
{
map(0x0000, 0x6fff).rom().region("code", 0);
}
static INPUT_PORTS_START( ichibanjyan )
INPUT_PORTS_END
static const gfx_layout charlayout =
{
8,8,
RGN_FRAC(1,1),
8,
{ 0, 1, 2, 3, 4, 5, 6, 7 },
{ STEP8( 0*512, 8 ) },
{ STEP8( 0*512, 8*8 ) },
8*8*8
};
static GFXDECODE_START( gfx_ichibanjyan )
GFXDECODE_ENTRY( "gfx1", 0, charlayout, 0, 1 )
GFXDECODE_ENTRY( "gfx2", 0, charlayout, 0, 1 )
GFXDECODE_END
void ichibanjyan_state::machine_start()
{
}
void ichibanjyan_state::machine_reset()
{
}
void ichibanjyan_state::ichibanjyan(machine_config &config)
{
/* basic machine hardware */
Z80(config, m_maincpu, MAIN_CLOCK/3);
m_maincpu->set_addrmap(AS_PROGRAM, &ichibanjyan_state::mem_map);
m_maincpu->set_addrmap(AS_IO, &ichibanjyan_state::io_map);
m_maincpu->set_addrmap(AS_OPCODES, &ichibanjyan_state::opcodes_map);
NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_0);
/* video hardware */
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
screen.set_raw(MAIN_CLOCK/3, 396, 0, 320, 256, 0, 224); // dimensions guessed
screen.set_screen_update(FUNC(ichibanjyan_state::screen_update));
screen.set_palette("palette");
GFXDECODE(config, "gfxdecode", "palette", gfx_ichibanjyan);
PALETTE(config, "palette", palette_device::RGB_444_PROMS, "proms", 512);
/* sound hardware */
SPEAKER(config, "mono").front_center();
YM2149(config, "aysnd", MAIN_CLOCK/12).add_route(ALL_OUTPUTS, "mono", 0.30);
YM2413(config, "ymsnd", MAIN_CLOCK/6).add_route(ALL_OUTPUTS, "mono", 0.5);
}
/***************************************************************************
Game driver(s)
***************************************************************************/
ROM_START( ichiban )
ROM_REGION( 0x20000, "code", 0 ) // opcodes in first half are mixed with pseudo-random garbage
ROM_LOAD( "3.u15", 0, 0x20000, CRC(76240568) SHA1(cf055d1eaae25661a49ec4722a2c7caca862e66a) )
ROM_REGION( 0x20000, "gfx1", 0 )
ROM_LOAD( "1.u28", 0, 0x20000, CRC(2caa4d3f) SHA1(5e5af164880140b764c097a65388c22ba5ea572b) )
ROM_REGION( 0x20000, "gfx2", 0 )
ROM_LOAD( "2.u14", 0, 0x20000, CRC(b4834d8e) SHA1(836ddf7586dc5440faf88f5ec50a32265e9a0ec8) )
ROM_REGION( 0x600, "proms", 0 )
ROM_LOAD( "mjr.u36", 0x000, 0x200, CRC(31cd7a90) SHA1(1525ad19d748561a52626e4ab13df67d9bedf3b8) )
ROM_LOAD( "mjg.u37", 0x200, 0x200, CRC(5b3562aa) SHA1(ada60d2a5a5a657d7b209d18a23b685305d9ff7b) )
ROM_LOAD( "mjb.u38", 0x400, 0x200, CRC(0ef881cb) SHA1(44b61a443d683f5cb2d1b1a4f74d8a8f41021de5) )
ROM_END
GAME( 199?, ichiban, 0, ichibanjyan, ichibanjyan, ichibanjyan_state, empty_init, ROT0, "Excel", "Ichi Ban Jyan", MACHINE_NOT_WORKING | MACHINE_NO_SOUND )
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