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bus/spectrum: Added The Music Machine (MIDI I/O expansion). (#12842)

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holub 2024-10-04 09:51:10 -04:00 committed by GitHub
parent 31c80501f7
commit bb90e82295
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5 changed files with 171 additions and 2 deletions
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2
scripts/src/bus.lua
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@ -4844,6 +4844,8 @@ if (BUSES["SPECTRUM"]~=null) then
MAME_DIR .. "src/devices/bus/spectrum/mikroplus.h",
MAME_DIR .. "src/devices/bus/spectrum/mpoker.cpp",
MAME_DIR .. "src/devices/bus/spectrum/mpoker.h",
MAME_DIR .. "src/devices/bus/spectrum/musicmachine.cpp",
MAME_DIR .. "src/devices/bus/spectrum/musicmachine.h",
MAME_DIR .. "src/devices/bus/spectrum/opus.cpp",
MAME_DIR .. "src/devices/bus/spectrum/opus.h",
MAME_DIR .. "src/devices/bus/spectrum/plus2test.cpp",

4
src/devices/bus/cpc/musicmachine.cpp
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@ -2,7 +2,7 @@
// copyright-holders:Barry Rodewald
/*
* The Music Machine - MIDI and sampling expansion
* by Ram Electronics
* by Ram Electronics Ltd
*/
#include "emu.h"
@ -16,7 +16,7 @@
// DEVICE DEFINITIONS
//**************************************************************************
DEFINE_DEVICE_TYPE(CPC_MUSICMACHINE, cpc_musicmachine_device, "cpcmusic", "The Music Machine")
DEFINE_DEVICE_TYPE(CPC_MUSICMACHINE, cpc_musicmachine_device, "cpcmusic", "The Music Machine (CPC)")
void cpc_musicmachine_device::device_add_mconfig(machine_config &config)

4
src/devices/bus/spectrum/exp.cpp
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@ -167,6 +167,7 @@ void spectrum_expansion_slot_device::mreq_w(offs_t offset, uint8_t data)
#include "mgt.h"
#include "mikroplus.h"
#include "mpoker.h"
#include "musicmachine.h"
#include "opus.h"
#include "plus2test.h"
#include "protek.h"
@ -215,6 +216,7 @@ void spectrum_expansion_devices(device_slot_interface &device)
device.option_add("mikroplus", SPECTRUM_MIKROPLUS);
device.option_add("mpoker", SPECTRUM_MPOKER);
device.option_add("mprint", SPECTRUM_MPRINT);
device.option_add("musicmachine", SPECTRUM_MUSICMACHINE);
device.option_add("opus", SPECTRUM_OPUS);
device.option_add("plusd", SPECTRUM_PLUSD);
device.option_add("proceed", SPECTRUM_PROCEED);
@ -244,6 +246,7 @@ void spec128_expansion_devices(device_slot_interface &device)
device.option_add("mface128", SPECTRUM_MFACE128);
device.option_add("mikroplus", SPECTRUM_MIKROPLUS);
device.option_add("mprint", SPECTRUM_MPRINT);
device.option_add("musicmachine", SPECTRUM_MUSICMACHINE);
device.option_add("opus", SPECTRUM_OPUS);
device.option_add("plusd", SPECTRUM_PLUSD);
device.option_add("plus2test", SPECTRUM_PLUS2TEST);
@ -259,5 +262,6 @@ void specpls3_expansion_devices(device_slot_interface &device)
{
device.option_add("kempjoy", SPECTRUM_KEMPJOY);
device.option_add("mface3", SPECTRUM_MFACE3);
device.option_add("musicmachine", SPECTRUM_MUSICMACHINE);
}

114
src/devices/bus/spectrum/musicmachine.cpp Normal file
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@ -0,0 +1,114 @@
// license:BSD-3-Clause
// copyright-holders:Andrei I. Holub
/*
* The Music Machine - MIDI and sampling expansion
* by Ram Electronics Ltd
*/
#include "emu.h"
#include "musicmachine.h"
#include "bus/midi/midi.h"
#include "machine/clock.h"
#include "speaker.h"
//**************************************************************************
// DEVICE DEFINITIONS
//**************************************************************************
DEFINE_DEVICE_TYPE(SPECTRUM_MUSICMACHINE, spectrum_musicmachine_device, "spectrummusic", "The Music Machine (ZX)")
void spectrum_musicmachine_device::device_add_mconfig(machine_config &config)
{
ACIA6850(config, m_acia).txd_handler().set("mdout", FUNC(midi_port_device::write_txd));
m_acia->irq_handler().set(DEVICE_SELF_OWNER, FUNC(spectrum_expansion_slot_device::nmi_w));
MIDI_PORT(config, "mdin", midiin_slot, "midiin").rxd_handler().set(m_acia, FUNC(acia6850_device::write_rxd));
MIDI_PORT(config, "mdout", midiout_slot, "midiout");
clock_device &acia_clock(CLOCK(config, "acia_clock", 31250*16));
acia_clock.signal_handler().set(FUNC(spectrum_musicmachine_device::write_acia_clock));
SPEAKER(config, "speaker").front_center();
ZN429E(config, m_dac, 0).add_route(ALL_OUTPUTS, "speaker", 0.2);
}
//**************************************************************************
// LIVE DEVICE
//**************************************************************************
spectrum_musicmachine_device::spectrum_musicmachine_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) :
device_t(mconfig, SPECTRUM_MUSICMACHINE, tag, owner, clock)
, device_spectrum_expansion_interface(mconfig, *this)
, m_acia(*this,"acia")
, m_dac(*this,"dac")
{
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void spectrum_musicmachine_device::device_start()
{
}
//-------------------------------------------------
// device_reset - device-specific reset
//-------------------------------------------------
void spectrum_musicmachine_device::device_reset()
{
m_irq_select = false;
}
void spectrum_musicmachine_device::write_acia_clock(u8 data)
{
m_acia->write_txc(data);
m_acia->write_rxc(data);
}
u8 spectrum_musicmachine_device::iorq_r(offs_t offset)
{
u8 data = offset & 1 ? m_slot->fb_r() : 0xff;
switch (offset & 0xff)
{
case 0x7f:
if (offset == 0xfc7f)
data = m_acia->status_r();
else
data = m_acia->data_r();
break;
case 0xbf:
// TODO ADC_READ
break;
case 0xdf:
// TODO Strobe: ADC_START
break;
}
return data;
}
void spectrum_musicmachine_device::iorq_w(offs_t offset, u8 data)
{
switch (offset & 0xff)
{
case 0x5f:
m_irq_select = data & 1;
break;
case 0x7f:
if (offset == 0xfc7f)
m_acia->control_w(data);
else
m_acia->data_w(data);
break;
case 0x9f:
m_dac->write(data);
break;
case 0xdf:
// TODO Strobe: ADC_START
break;
}
}

49
src/devices/bus/spectrum/musicmachine.h Normal file
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@ -0,0 +1,49 @@
// license:BSD-3-Clause
// copyright-holders:Barry Rodewald
/*
* The Music Machine - MIDI and sampling expansion
* by Ram Electronics
*
* Contains a 6850 AICA, Ferranti ZN429E8 DAC and ZN449 ADC
*/
#ifndef MAME_BUS_SPECTRUM_MUSICMACHINE_H
#define MAME_BUS_SPECTRUM_MUSICMACHINE_H
#pragma once
#include "exp.h"
#include "machine/6850acia.h"
#include "sound/dac.h"
class spectrum_musicmachine_device : public device_t
, public device_spectrum_expansion_interface
{
public:
// construction/destruction
spectrum_musicmachine_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
void write_acia_clock(u8 data);
protected:
// device-level overrides
virtual void device_start() override ATTR_COLD;
virtual void device_reset() override ATTR_COLD;
// optional information overrides
virtual void device_add_mconfig(machine_config &config) override ATTR_COLD;
virtual u8 iorq_r(offs_t offset) override;
virtual void iorq_w(offs_t offset, u8 data) override;
private:
required_device<acia6850_device> m_acia;
required_device<dac_byte_interface> m_dac;
bool m_irq_select;
};
// device type definition
DECLARE_DEVICE_TYPE(SPECTRUM_MUSICMACHINE, spectrum_musicmachine_device)
#endif // MAME_BUS_SPECTRUM_MUSICMACHINE_H