// license:GPL-2.0+
// copyright-holders:Jarek Burczynski, Tomasz Slanina
/***************************************************************************
Driver by Jarek Burczynski, started by Tomasz Slanina dox@space.pl
Lots of hardware info from Guru
memory map :
0000 - 3fff rom
4000 - 43ff RAM for main CPU
4800 - 480f control area (connected to 74LS259 8-bit addressable latch; lines A0,A1,A2 - address input, line A3 - data input)
4800,4808 - control shared RAM access between main CPU/sub CPU. 4800=access for sub CPU, 4808=access for main CPU
4801,4809 - NMI disable/enable
4802,480a -
4803,480b -
4804,480c -
4807,480f -?
4800 - 4800 read: input
5000 - 5000 read: input
5800 - 5800 read: input
5800 - 5800 write: watchdog
6000 - AY port write
6800 - AY data write
7000 - 73ff RAM shared: main CPU/ALPHA MCU
7800 - 7bff RAM shared: between main CPU/sub CPU
8000 - bfff colorram
c000 - ffff videoram
Both games use custom MCU: ALPHA 8201 (42 pin DIP).
It's connected to the RAM that is shared with the first CPU.
Shougi
Alpha Electronics Co. Ltd., 198x
PCB No: 57F1
CPU : Z80A (x2)
SOUND : AY-3-8910
XTAL : 10.000MHz
RAM :
2114 (x6), one RAM: 0x400 x 4bits = 0x400 bytes (x 3)
mapped at:
1: 0x4000 - 0x43ff (main CPU - stack also here, so it is work RAM)
2: 0x7000 - 0x73ff (main CPU - shared with ALPHA-8201)
3: 0x6000 - 0x63ff (sub CPU)
4116 (x16), one RAM: 16K x 1bit = 16K x 8bits *2 = 32K x 8bits
mapped at:
0x8000 - 0xffff
CUSTOM: ALPHA 8201 (42 pin DIP)
DIPSW : 6 position (x1)
Positions 1, 5 & 6 not used
4 3 2
------------------------------
OFF OFF OFF 1 minutes (time for the opponent to make his decision)
OFF OFF ON 2
OFF ON OFF 3
OFF ON ON 4
ON OFF OFF 5
ON OFF ON 10
ON ON OFF 20
ON ON ON 30
ROMs : All type 2732
PROM : Type MB7051
**************************************************************************/
#include "emu.h"
#include "machine/alpha8201.h"
#include "machine/watchdog.h"
#include "cpu/z80/z80.h"
#include "sound/ay8910.h"
#include "video/resnet.h"
class shougi_state : public driver_device
{
public:
shougi_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_subcpu(*this, "sub"),
m_alpha_8201(*this, "alpha_8201"),
m_videoram(*this, "videoram")
{ }
// devices/pointers
required_device<cpu_device> m_maincpu;
required_device<cpu_device> m_subcpu;
required_device<alpha_8201_device> m_alpha_8201;
required_shared_ptr<UINT8> m_videoram;
UINT8 m_control[8];
UINT8 m_nmi_enabled;
int m_r;
DECLARE_WRITE8_MEMBER(control_w);
DECLARE_READ8_MEMBER(semaphore_r);
DECLARE_PALETTE_INIT(shougi);
UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
INTERRUPT_GEN_MEMBER(vblank_nmi);
virtual void machine_start() override;
virtual void machine_reset() override;
};
void shougi_state::machine_start()
{
// zerofill
memset(m_control, 0, sizeof(m_control));
m_nmi_enabled = 0;
m_r = 0;
// register for savestates
save_item(NAME(m_control));
save_item(NAME(m_nmi_enabled));
save_item(NAME(m_r));
}
void shougi_state::machine_reset()
{
// 74LS259 is auto CLR on reset
for (int i = 0; i < 8; i++)
control_w(m_maincpu->space(), i, 0);
}
/***************************************************************************
Video
***************************************************************************/
/***************************************************************************
Convert the color PROMs into a more useable format.
bit 0 -- 1000 ohm resistor--\
bit 1 -- 470 ohm resistor --+--+--> RED
bit 2 -- 220 ohm resistor --/ \---------------1000 ohm resistor---\
bit 3 -- 1000 ohm resistor--\ |
bit 4 -- 470 ohm resistor --+--+--> GREEN |
bit 5 -- 220 ohm resistor --/ \---------------1000 ohm resistor---+--- GND
bit 6 -- 470 ohm resistor --+--+--> BLUE |
bit 7 -- 220 ohm resistor --/ \---------------1000 ohm resistor---/
***************************************************************************/
PALETTE_INIT_MEMBER(shougi_state, shougi)
{
const UINT8 *color_prom = memregion("proms")->base();
static const int resistances_b[2] = { 470, 220 };
static const int resistances_rg[3] = { 1000, 470, 220 };
double weights_r[3], weights_g[3], weights_b[2];
compute_resistor_weights(0, 255, -1.0,
3, resistances_rg, weights_r, 1000, 0,
3, resistances_rg, weights_g, 1000, 0,
2, resistances_b, weights_b, 1000, 0);
for (int i = 0; i < palette.entries(); i++)
{
int bit0,bit1,bit2,r,g,b;
/* red component */
bit0 = (color_prom[i] >> 0) & 0x01;
bit1 = (color_prom[i] >> 1) & 0x01;
bit2 = (color_prom[i] >> 2) & 0x01;
r = combine_3_weights(weights_r, bit0, bit1, bit2);
/* green component */
bit0 = (color_prom[i] >> 3) & 0x01;
bit1 = (color_prom[i] >> 4) & 0x01;
bit2 = (color_prom[i] >> 5) & 0x01;
g = combine_3_weights(weights_g, bit0, bit1, bit2);
/* blue component */
bit0 = (color_prom[i] >> 6) & 0x01;
bit1 = (color_prom[i] >> 7) & 0x01;
b = combine_2_weights(weights_b, bit0, bit1);
palette.set_pen_color(i,rgb_t(r,g,b));
}
}
UINT32 shougi_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
for (int offs = 0; offs < 0x4000; offs++)
{
int sx, sy, x, data1, data2, color, data;
sx = offs >> 8; /*00..0x3f (64*4=256)*/
sy = offs & 0xff; /*00..0xff*/
data1 = m_videoram[offs]; /* color */
data2 = m_videoram[0x4000 + offs]; /* pixel data */
for (x=0; x<4; x++) /*4 pixels per byte (2 bitplanes in 2 nibbles: 1st=bits 7-4, 2nd=bits 3-0)*/
{
color= ((data1>>x) & 1) | (((data1>>(4+x)) & 1)<<1);
data = ((data2>>x) & 1) | (((data2>>(4+x)) & 1)<<1);
bitmap.pix16(255-sy, 255-(sx*4 + x)) = color*4 + data;
}
}
return 0;
}
/***************************************************************************
I/O
***************************************************************************/
// maincpu side
WRITE8_MEMBER(shougi_state::control_w)
{
// 4800-480f connected to the 74LS259, A3 is data line
// so 4800-4807 write 0, and 4808-480f write 1
data = offset >> 3 & 1;
offset &= 7;
switch (offset)
{
case 1:
m_nmi_enabled = data;
// NMI lines are tied together on both CPUs and connected to the LS74 /Q output
if (!m_nmi_enabled)
{
m_maincpu->set_input_line(INPUT_LINE_NMI, CLEAR_LINE);
m_subcpu->set_input_line(INPUT_LINE_NMI, CLEAR_LINE);
}
break;
case 3:
// start/halt ALPHA-8201
m_alpha_8201->mcu_start_w(data);
break;
case 4:
// ALPHA-8201 shared RAM bus direction: 0: mcu, 1: maincpu
m_alpha_8201->bus_dir_w(!data);
break;
default:
// 0: 0: sharedram = sub, 1: sharedram = main (TODO!)
// 2: ?
// 7: nothing? connected to +5v via resistor
break;
}
m_control[offset] = data;
}
static ADDRESS_MAP_START( main_map, AS_PROGRAM, 8, shougi_state )
AM_RANGE(0x0000, 0x3fff) AM_ROM
AM_RANGE(0x4000, 0x43ff) AM_RAM /* 2114 x 2 (0x400 x 4bit each) */
AM_RANGE(0x4800, 0x480f) AM_WRITE(control_w)
AM_RANGE(0x4800, 0x4800) AM_READ_PORT("DSW")
AM_RANGE(0x5000, 0x5000) AM_READ_PORT("P1")
AM_RANGE(0x5800, 0x5800) AM_READ_PORT("P2") AM_DEVWRITE("watchdog", watchdog_timer_device, reset_w) /* game won't boot if watchdog doesn't work */
AM_RANGE(0x6000, 0x6000) AM_DEVWRITE("aysnd", ay8910_device, address_w)
AM_RANGE(0x6800, 0x6800) AM_DEVWRITE("aysnd", ay8910_device, data_w)
AM_RANGE(0x7000, 0x73ff) AM_DEVREADWRITE("alpha_8201", alpha_8201_device, ext_ram_r, ext_ram_w)
AM_RANGE(0x7800, 0x7bff) AM_RAM AM_SHARE("sharedram") /* 2114 x 2 (0x400 x 4bit each) */
AM_RANGE(0x8000, 0xffff) AM_RAM AM_SHARE("videoram") /* 4116 x 16 (32K) */
ADDRESS_MAP_END
// subcpu side
READ8_MEMBER(shougi_state::semaphore_r)
{
// d0: waits for it to be set before handling NMI routine
// hmm it must be a signal from maincpu, but what?
m_r ^= 1;
return m_r;
}
static ADDRESS_MAP_START( sub_map, AS_PROGRAM, 8, shougi_state )
AM_RANGE(0x0000, 0x5fff) AM_ROM
AM_RANGE(0x6000, 0x63ff) AM_RAM AM_SHARE("sharedram") /* 2114 x 2 (0x400 x 4bit each) */
ADDRESS_MAP_END
static ADDRESS_MAP_START( readport_sub, AS_IO, 8, shougi_state )
ADDRESS_MAP_GLOBAL_MASK(0x00ff)
AM_RANGE(0x00, 0x00) AM_READ(semaphore_r)
ADDRESS_MAP_END
/***************************************************************************
Inputs
***************************************************************************/
static INPUT_PORTS_START( shougi )
PORT_START("P1")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_START2 )
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_START1 )
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_BUTTON2 )
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_BUTTON1 )
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT )
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT )
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN )
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP )
PORT_START("P2")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_UNKNOWN )
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_UNKNOWN )
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_PLAYER(2)
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(2)
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_PLAYER(2)
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(2)
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_PLAYER(2)
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_PLAYER(2)
// dip switch order is not sequential. Only 2,3,4, and 5 identified.
// 1 and 6 missing, with three possible positions (the third available
// bit is not a dip switch)
PORT_START("DSW")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_COIN1 )
PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x08, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x32, 0x32, "Time" ) PORT_DIPLOCATION("SW:!3,!4,!2")
PORT_DIPSETTING( 0x00, "1 Minute" )
PORT_DIPSETTING( 0x20, "2 Minutes" )
PORT_DIPSETTING( 0x02, "3 Minutes" )
PORT_DIPSETTING( 0x22, "4 Minutes" )
PORT_DIPSETTING( 0x10, "5 Minutes" )
PORT_DIPSETTING( 0x30, "10 Minutes" )
PORT_DIPSETTING( 0x12, "20 Minutes" )
PORT_DIPSETTING( 0x32, "30 Minutes" )
PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) ) PORT_DIPLOCATION("SW:!5")
PORT_DIPSETTING( 0x04, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x40, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x80, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
INPUT_PORTS_END
static INPUT_PORTS_START( shougi2 )
PORT_INCLUDE(shougi)
PORT_MODIFY("DSW")
PORT_DIPNAME( 0x04, 0x04, DEF_STR( Coinage ) ) PORT_DIPLOCATION("SW:!5")
PORT_DIPSETTING( 0x00, DEF_STR( 2C_1C ) )
PORT_DIPSETTING( 0x04, DEF_STR( 1C_1C ) )
INPUT_PORTS_END
/***************************************************************************
Machine Config
***************************************************************************/
INTERRUPT_GEN_MEMBER(shougi_state::vblank_nmi)
{
if (m_nmi_enabled)
{
m_maincpu->set_input_line(INPUT_LINE_NMI, ASSERT_LINE);
m_subcpu->set_input_line(INPUT_LINE_NMI, ASSERT_LINE);
}
}
static MACHINE_CONFIG_START( shougi, shougi_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", Z80, XTAL_10MHz/4)
MCFG_CPU_PROGRAM_MAP(main_map)
MCFG_CPU_VBLANK_INT_DRIVER("screen", shougi_state, vblank_nmi)
MCFG_CPU_ADD("sub", Z80, XTAL_10MHz/4)
MCFG_CPU_PROGRAM_MAP(sub_map)
MCFG_CPU_IO_MAP(readport_sub)
MCFG_DEVICE_ADD("alpha_8201", ALPHA_8201, XTAL_10MHz/4/8)
MCFG_QUANTUM_PERFECT_CPU("maincpu")
MCFG_WATCHDOG_ADD("watchdog")
MCFG_WATCHDOG_VBLANK_INIT("screen", 0x10) // assuming it's the same as champbas
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_REFRESH_RATE(60)
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
MCFG_SCREEN_SIZE(256, 256)
MCFG_SCREEN_VISIBLE_AREA(0, 255, 0, 255)
MCFG_SCREEN_UPDATE_DRIVER(shougi_state, screen_update)
MCFG_SCREEN_PALETTE("palette")
MCFG_PALETTE_ADD("palette", 32)
MCFG_PALETTE_INIT_OWNER(shougi_state, shougi)
/* sound hardware */
MCFG_SPEAKER_STANDARD_MONO("mono")
MCFG_SOUND_ADD("aysnd", AY8910, XTAL_10MHz/8)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.30)
MACHINE_CONFIG_END
/***************************************************************************
Game driver(s)
***************************************************************************/
ROM_START( shougi )
ROM_REGION( 0x10000, "maincpu", 0 )
ROM_LOAD( "1.3a", 0x0000, 0x1000, CRC(b601303f) SHA1(ed07fb09053e15be49f4cb66e8916d1bdff48336) )
ROM_LOAD( "3.3c", 0x1000, 0x1000, CRC(2b8c7314) SHA1(5d21e425889f8dc118fcd2ba8cfc6fb8f94ddc5f) )
ROM_LOAD( "2.3b", 0x2000, 0x1000, CRC(09cb831f) SHA1(5a83a22d9245f980fe6a495433e51437d1f95644) )
ROM_LOAD( "4.3d", 0x3000, 0x1000, CRC(ad1a642a) SHA1(d12b10f94a568d1126384e14af4b53c5e5b1a0d0) )
ROM_REGION( 0x10000, "sub", ROMREGION_ERASE00 )
ROM_LOAD( "5.3e", 0x0000, 0x1000, CRC(ff1f07d0) SHA1(ae5bab09916b6d4ad8d3568ea39501850bdc6991) )
ROM_LOAD( "8.3j", 0x1000, 0x1000, CRC(6230c4c1) SHA1(0b2c81bb02c270ed3bb5b42c4bd4eb25023090cb) )
ROM_LOAD( "6.3f", 0x2000, 0x1000, CRC(d5a91b16) SHA1(1d21295667c3eb186f9e7f867763f2f2697fd350) )
ROM_LOAD( "9.3k", 0x3000, 0x1000, CRC(dbbfa66e) SHA1(fcf23fcc65e8253325937acaf7aad4253be5e6df) )
ROM_LOAD( "7.3h", 0x4000, 0x1000, CRC(7ea8ec4a) SHA1(d3b999a683f49c911871d0ae6bb2022e73e3cfb8) )
/* shougi has one socket empty */
ROM_REGION( 0x2000, "alpha_8201:mcu", 0 )
ROM_LOAD( "alpha-8201_44801a75_2f25.bin", 0x0000, 0x2000, CRC(b77931ac) SHA1(405b02585e80d95a2821455538c5c2c31ce262d1) )
ROM_REGION( 0x0020, "proms", 0 )
ROM_LOAD( "pr.2l", 0x0000, 0x0020, CRC(cd3559ff) SHA1(a1291b06a8a337943660b2ef62c94c49d58a6fb5) )
ROM_END
ROM_START( shougi2 )
ROM_REGION( 0x10000, "maincpu", 0 )
ROM_LOAD( "1-2.3a", 0x0000, 0x1000, CRC(16d75306) SHA1(2d090396abd1fe2b31cb8450cc5d2fbde75e0230) )
ROM_LOAD( "3-2.3c", 0x1000, 0x1000, CRC(35b6d98b) SHA1(fc125acd4d504d9c883e685b9c6e5a509dc75c69) )
ROM_LOAD( "2-2.3b", 0x2000, 0x1000, CRC(b38affed) SHA1(44529233358923f114285533270b2a3c078b70f4) )
ROM_LOAD( "4-2.3d", 0x3000, 0x1000, CRC(1abdb6bf) SHA1(9c7630c0e4bcaa4296a442b0e9828b96d91da77f) )
ROM_REGION( 0x10000, "sub", 0 )
ROM_LOAD( "5-2.3e", 0x0000, 0x1000, CRC(0ba89dd4) SHA1(d4d3b7bccccf3b7e07e2d9d776426a22b4ff422e) )
ROM_LOAD( "8-2.3j", 0x1000, 0x1000, CRC(0ae0c8c1) SHA1(91f6f88d38c96c793137e7aaa763cab1b769e098) )
ROM_LOAD( "6-2.3f", 0x2000, 0x1000, CRC(d98abcae) SHA1(f280b627f81f2c727268b9694d833e487ff6b08d) )
ROM_LOAD( "9-2.3k", 0x3000, 0x1000, CRC(4e0e6c90) SHA1(b8462eec0a13d8bdf7d314eb285b5bd27d40631c) )
ROM_LOAD( "7-2.3h", 0x4000, 0x1000, CRC(5f37ebc6) SHA1(2e5c4c2f455979e2ad2c66c5aa9f4d92194796af) )
ROM_LOAD( "10-2.3l", 0x5000, 0x1000, CRC(a26385fd) SHA1(2adb21bb4f67a378014bc1edda48daca349d17e1) )
ROM_REGION( 0x2000, "alpha_8201:mcu", 0 )
ROM_LOAD( "alpha-8201_44801a75_2f25.bin", 0x0000, 0x2000, CRC(b77931ac) SHA1(405b02585e80d95a2821455538c5c2c31ce262d1) )
ROM_REGION( 0x0020, "proms", 0 )
ROM_LOAD( "pr.2l", 0x0000, 0x0020, CRC(cd3559ff) SHA1(a1291b06a8a337943660b2ef62c94c49d58a6fb5) )
ROM_END
/* YEAR NAME PARENT MACHINE INPUT INIT MONITOR, COMPANY, FULLNAME, FLAGS */
GAME( 1982, shougi, 0, shougi, shougi, driver_device, 0, ROT0, "Alpha Denshi Co. (Tehkan license)", "Shougi", MACHINE_SUPPORTS_SAVE )
GAME( 1982, shougi2, 0, shougi, shougi2, driver_device, 0, ROT0, "Alpha Denshi Co. (Tehkan license)", "Shougi Part II", MACHINE_SUPPORTS_SAVE )