mirror of
https://github.com/holub/mame
synced 2025-05-29 09:03:08 +03:00
d0f1c15a0f
Should be added soon: - mute - speaker/microphone resampling To be added a little later: - compression - reverb Needs to be added by someone else: - coreaudio - direct - portaudio - xaudio2 - js
123 lines
3.7 KiB
C++
123 lines
3.7 KiB
C++
// license:BSD-3-Clause
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// copyright-holders:Wilbert Pol
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/**********************************************************************************
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TODO:
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- Properly hook up correct SRAM sizes for different moonsound compatible
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cartridges. (Original moonsound has 128KB SRAM)
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**********************************************************************************/
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#include "emu.h"
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#include "moonsound.h"
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#include "sound/ymopl.h"
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#include "speaker.h"
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#define VERBOSE 0
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#include "logmacro.h"
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namespace {
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class msx_cart_moonsound_device : public device_t, public msx_cart_interface
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{
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public:
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msx_cart_moonsound_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
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: device_t(mconfig, MSX_CART_MOONSOUND, tag, owner, clock)
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, msx_cart_interface(mconfig, *this)
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, m_ymf278b(*this, "ymf278b")
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{ }
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protected:
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// device_t implementation
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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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virtual void device_add_mconfig(machine_config &config) override ATTR_COLD;
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virtual const tiny_rom_entry *device_rom_region() const override ATTR_COLD;
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private:
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void irq_w(int state);
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void write_ymf278b_pcm(offs_t offset, u8 data);
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u8 read_ymf278b_pcm(offs_t offset);
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u8 read_c0();
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void ymf278b_map(address_map &map) ATTR_COLD;
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required_device<ymf278b_device> m_ymf278b;
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};
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void msx_cart_moonsound_device::ymf278b_map(address_map &map)
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{
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map(0x000000, 0x1fffff).rom();
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map(0x200000, 0x3fffff).ram(); // 2MB sram for testing
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}
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void msx_cart_moonsound_device::device_add_mconfig(machine_config &config)
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{
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// The moonsound cartridge has a separate stereo output.
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SPEAKER(config, "speaker", 2).front();
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YMF278B(config, m_ymf278b, 33.8688_MHz_XTAL);
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m_ymf278b->set_addrmap(0, &msx_cart_moonsound_device::ymf278b_map);
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m_ymf278b->irq_handler().set(FUNC(msx_cart_moonsound_device::irq_w));
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m_ymf278b->add_route(0, "speaker", 0.50, 0);
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m_ymf278b->add_route(1, "speaker", 0.50, 1);
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m_ymf278b->add_route(2, "speaker", 0.40, 0);
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m_ymf278b->add_route(3, "speaker", 0.40, 1);
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m_ymf278b->add_route(4, "speaker", 0.50, 0);
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m_ymf278b->add_route(5, "speaker", 0.50, 1);
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}
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ROM_START(msx_cart_moonsound)
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ROM_REGION(0x400000, "ymf278b", 0)
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ROM_LOAD("yrw801.rom", 0x0, 0x200000, CRC(2a9d8d43) SHA1(32760893ce06dbe3930627755ba065cc3d8ec6ca))
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ROM_END
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const tiny_rom_entry *msx_cart_moonsound_device::device_rom_region() const
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{
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return ROM_NAME(msx_cart_moonsound);
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}
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void msx_cart_moonsound_device::device_start()
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{
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// Install IO read/write handlers
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io_space().install_readwrite_handler(0x7e, 0x7f, emu::rw_delegate(*this, FUNC(msx_cart_moonsound_device::read_ymf278b_pcm)), emu::rw_delegate(*this, FUNC(msx_cart_moonsound_device::write_ymf278b_pcm)));
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io_space().install_readwrite_handler(0xc4, 0xc7, emu::rw_delegate(m_ymf278b, FUNC(ymf278b_device::read)), emu::rw_delegate(m_ymf278b, FUNC(ymf278b_device::write)));
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io_space().install_read_handler(0xc0, 0xc0, emu::rw_delegate(*this, FUNC(msx_cart_moonsound_device::read_c0)));
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}
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void msx_cart_moonsound_device::device_reset()
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{
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}
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void msx_cart_moonsound_device::irq_w(int state)
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{
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LOG("moonsound: irq state %d\n", state);
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irq_out(state);
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}
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void msx_cart_moonsound_device::write_ymf278b_pcm(offs_t offset, u8 data)
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{
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LOG("moonsound: write 0x%02x, data 0x%02x\n", 0x7e + offset, data);
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m_ymf278b->write(4 + offset, data);
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}
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u8 msx_cart_moonsound_device::read_ymf278b_pcm(offs_t offset)
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{
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LOG("moonsound: read 0x%02x\n", 0x7e + offset);
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return m_ymf278b->read(4 + offset);
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}
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// For detecting presence of moonsound cartridge
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u8 msx_cart_moonsound_device::read_c0()
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{
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LOG("moonsound: read 0xc0\n");
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return 0x00;
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}
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} // anonymous namespace
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DEFINE_DEVICE_TYPE_PRIVATE(MSX_CART_MOONSOUND, msx_cart_interface, msx_cart_moonsound_device, "msx_moonsound", "MSX Cartridge - MoonSound")
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