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holubholub
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bus/spectrum: Added The Music Machine
1 parent 8381197 commit 2b87aa5

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‎scripts/src/bus.lua

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@@ -4842,6 +4842,8 @@ if (BUSES["SPECTRUM"]~=null) then
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MAME_DIR .. "src/devices/bus/spectrum/mikroplus.h",
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MAME_DIR .. "src/devices/bus/spectrum/mpoker.cpp",
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MAME_DIR .. "src/devices/bus/spectrum/mpoker.h",
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MAME_DIR .. "src/devices/bus/spectrum/musicmachine.cpp",
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MAME_DIR .. "src/devices/bus/spectrum/musicmachine.h",
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MAME_DIR .. "src/devices/bus/spectrum/opus.cpp",
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MAME_DIR .. "src/devices/bus/spectrum/opus.h",
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MAME_DIR .. "src/devices/bus/spectrum/plus2test.cpp",

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

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

‎src/devices/bus/spectrum/musicmachine.h

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

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