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https://github.com/holub/mame
synced 2025-04-21 07:52:35 +03:00
Added a very preliminary PC9801 AMD98 sound board emulation [Angelo Salese]
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angelosa
parent
1fae9bd1f5
commit
952af08ca6
@ -3128,6 +3128,8 @@ if (BUSES["CBUS"]~=null) then
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MAME_DIR .. "src/devices/bus/cbus/pc9801_86.h",
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MAME_DIR .. "src/devices/bus/cbus/pc9801_118.cpp",
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MAME_DIR .. "src/devices/bus/cbus/pc9801_118.h",
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MAME_DIR .. "src/devices/bus/cbus/pc9801_amd98.cpp",
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MAME_DIR .. "src/devices/bus/cbus/pc9801_amd98.h",
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MAME_DIR .. "src/devices/bus/cbus/mpu_pc98.cpp",
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MAME_DIR .. "src/devices/bus/cbus/mpu_pc98.h",
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MAME_DIR .. "src/devices/bus/cbus/pc9801_cbus.cpp",
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201
src/devices/bus/cbus/pc9801_amd98.cpp
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201
src/devices/bus/cbus/pc9801_amd98.cpp
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@ -0,0 +1,201 @@
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// license:BSD-3-Clause
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// copyright-holders:Angelo Salese
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/***************************************************************************
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System Sacom AMD-98 (AmuseMent boarD)
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3 PSG chips, one of the first sound boards released for PC98
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Superseded by later NEC in-house sound boards
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TODO:
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- not sure if it's AY8910 or YM2203, from a PCB pic it looks with stock AY logos?
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- Third AY (uses port B from BOTH AYs);
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- PIT control;
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- identification doesn't seem really working?
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- PCM section;
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=============================================================================
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- Known games with AMD-98 support
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Brown's Run (System Sacom)
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Dome (System Sacom)
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Highway Star (System Sacom)
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Marchen Veil I (System Sacom)
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Marchen Veil II (System Sacom)
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Zone (System Sacom)
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Relics (Bothtec)
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Thexder (Game Arts)
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***************************************************************************/
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#include "emu.h"
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#include "bus/cbus/pc9801_amd98.h"
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#include "speaker.h"
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#define MAIN_CLOCK_X1 XTAL_1_9968MHz
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//**************************************************************************
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// GLOBAL VARIABLES
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//**************************************************************************
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// device type definition
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DEFINE_DEVICE_TYPE(PC9801_AMD98, pc9801_amd98_device, "pc9801_amd98", "pc9801_amd98")
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//-------------------------------------------------
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// device_add_mconfig - add device configuration
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//-------------------------------------------------
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MACHINE_CONFIG_MEMBER( pc9801_amd98_device::device_add_mconfig )
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MCFG_SPEAKER_STANDARD_STEREO("lspeaker","rspeaker")
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MCFG_SOUND_ADD("ay1", AY8910, MAIN_CLOCK_X1*2)
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MCFG_AY8910_PORT_A_READ_CB(IOPORT("OPN_PA1"))
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MCFG_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 0.50)
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MCFG_SOUND_ADD("ay2", AY8910, MAIN_CLOCK_X1*2)
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MCFG_AY8910_PORT_A_READ_CB(IOPORT("OPN_PA2"))
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MCFG_SOUND_ROUTE(ALL_OUTPUTS, "rspeaker", 0.50)
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MCFG_SOUND_ADD("ay3", AY8910, MAIN_CLOCK_X1*2)
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MCFG_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 0.25)
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MCFG_SOUND_ROUTE(ALL_OUTPUTS, "rspeaker", 0.25)
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MACHINE_CONFIG_END
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static INPUT_PORTS_START( pc9801_amd98 )
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PORT_START("OPN_PA1")
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PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(1) PORT_NAME("P1 Joystick Up")
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PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(1) PORT_NAME("P1 Joystick Down")
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PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(1) PORT_NAME("P1 Joystick Left")
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PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(1) PORT_NAME("P1 Joystick Right")
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PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1) PORT_NAME("P1 Joystick Button 1")
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PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(1) PORT_NAME("P1 Joystick Button 2")
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PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
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PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
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PORT_START("OPN_PA2")
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PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(2) PORT_NAME("P2 Joystick Up")
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PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(2) PORT_NAME("P2 Joystick Down")
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PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(2) PORT_NAME("P2 Joystick Left")
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PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(2) PORT_NAME("P2 Joystick Right")
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PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2) PORT_NAME("P2 Joystick Button 1")
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PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2) PORT_NAME("P2 Joystick Button 2")
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PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
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PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
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INPUT_PORTS_END
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ioport_constructor pc9801_amd98_device::device_input_ports() const
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{
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return INPUT_PORTS_NAME( pc9801_amd98 );
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}
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//**************************************************************************
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// LIVE DEVICE
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//**************************************************************************
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//-------------------------------------------------
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// pc9801_amd98_device - constructor
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//-------------------------------------------------
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pc9801_amd98_device::pc9801_amd98_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
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: device_t(mconfig, PC9801_AMD98, tag, owner, clock),
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// m_maincpu(*this, "^maincpu"),
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m_ay1(*this, "ay1"),
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m_ay2(*this, "ay2"),
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m_ay3(*this, "ay3")
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{
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}
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//-------------------------------------------------
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// device_validity_check - perform validity checks
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// on this device
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//-------------------------------------------------
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void pc9801_amd98_device::device_validity_check(validity_checker &valid) const
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{
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}
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//-------------------------------------------------
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// device_start - device-specific startup
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//-------------------------------------------------
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void pc9801_amd98_device::install_device(offs_t start, offs_t end, read8_delegate rhandler, write8_delegate whandler)
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{
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int buswidth = machine().firstcpu->space_config(AS_IO)->m_databus_width;
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switch(buswidth)
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{
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case 8:
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machine().firstcpu->space(AS_IO).install_readwrite_handler(start, end, rhandler, whandler, 0);
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break;
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case 16:
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machine().firstcpu->space(AS_IO).install_readwrite_handler(start, end, rhandler, whandler, 0xffff);
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break;
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case 32:
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machine().firstcpu->space(AS_IO).install_readwrite_handler(start, end, rhandler, whandler, 0xffffffff);
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break;
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default:
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fatalerror("PC-9801-AMD98: Bus width %d not supported\n", buswidth);
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}
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}
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void pc9801_amd98_device::device_start()
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{
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}
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//-------------------------------------------------
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// device_reset - device-specific reset
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//-------------------------------------------------
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void pc9801_amd98_device::device_reset()
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{
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install_device(0x00d8, 0x00df, read8_delegate(FUNC(pc9801_amd98_device::read), this), write8_delegate(FUNC(pc9801_amd98_device::write), this) );
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// Thexder access with following
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install_device(0x38d8, 0x38df, read8_delegate(FUNC(pc9801_amd98_device::read), this), write8_delegate(FUNC(pc9801_amd98_device::write), this) );
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}
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//**************************************************************************
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// READ/WRITE HANDLERS
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//**************************************************************************
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READ8_MEMBER(pc9801_amd98_device::read)
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{
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switch(offset)
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{
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case 2:
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return m_ay1->data_r(space,0);
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case 3:
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return m_ay2->data_r(space,0);
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}
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printf("%02x\n",offset);
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return 0xff;
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}
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WRITE8_MEMBER(pc9801_amd98_device::write)
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{
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switch(offset)
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{
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case 0:
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m_ay1->address_w(space,0,data);
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break;
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case 1:
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m_ay2->address_w(space,0,data);
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break;
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case 2:
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m_ay1->data_w(space,0,data);
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break;
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case 3:
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m_ay2->data_w(space,0,data);
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break;
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default:
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printf("%02x %02x\n",offset,data);
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}
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}
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61
src/devices/bus/cbus/pc9801_amd98.h
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61
src/devices/bus/cbus/pc9801_amd98.h
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@ -0,0 +1,61 @@
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// license:BSD-3-Clause
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// copyright-holders:Angelo Salese
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/***************************************************************************
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NEC PC-9801-118
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***************************************************************************/
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#ifndef MAME_BUS_CBUS_PC9801_AMD98_H
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#define MAME_BUS_CBUS_PC9801_AMD98_H
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#pragma once
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#include "sound/ay8910.h"
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//**************************************************************************
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// TYPE DEFINITIONS
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//**************************************************************************
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// ======================> pc9801_118_device
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class pc9801_amd98_device : public device_t
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{
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public:
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// construction/destruction
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pc9801_amd98_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
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static constexpr feature_type imperfect_features() { return feature::SOUND; }
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DECLARE_READ8_MEMBER(read);
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DECLARE_WRITE8_MEMBER(write);
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protected:
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// device-level overrides
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virtual void device_validity_check(validity_checker &valid) const override;
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virtual void device_start() override;
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virtual void device_reset() override;
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// optional information overrides
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virtual void device_add_mconfig(machine_config &config) override;
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void install_device(offs_t start, offs_t end, read8_delegate rhandler, write8_delegate whandler);
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virtual ioport_constructor device_input_ports() const override;
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private:
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// required_device<cpu_device> m_maincpu;
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required_device<ay8910_device> m_ay1;
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required_device<ay8910_device> m_ay2;
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required_device<ay8910_device> m_ay3;
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};
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// device type definition
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DECLARE_DEVICE_TYPE(PC9801_AMD98, pc9801_amd98_device)
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#endif // MAME_BUS_CBUS_PC9801_118_H
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@ -1954,6 +1954,7 @@ static SLOT_INTERFACE_START( pc9801_cbus )
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// Speak Board
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// Spark Board
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// AMD-98 (AmuseMent boarD)
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SLOT_INTERFACE( "pc9801_amd98", PC9801_AMD98 )
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SLOT_INTERFACE( "mpu_pc98", MPU_PC98 )
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SLOT_INTERFACE_END
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@ -36,6 +36,7 @@
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#include "bus/cbus/pc9801_26.h"
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#include "bus/cbus/pc9801_86.h"
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#include "bus/cbus/pc9801_118.h"
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#include "bus/cbus/pc9801_amd98.h"
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#include "bus/cbus/mpu_pc98.h"
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#include "bus/cbus/pc9801_cbus.h"
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#include "machine/pc9801_kbd.h"
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