summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/bus/mpf1/sgb.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/devices/bus/mpf1/sgb.cpp')
-rw-r--r--src/devices/bus/mpf1/sgb.cpp73
1 files changed, 73 insertions, 0 deletions
diff --git a/src/devices/bus/mpf1/sgb.cpp b/src/devices/bus/mpf1/sgb.cpp
new file mode 100644
index 00000000000..9866c05844d
--- /dev/null
+++ b/src/devices/bus/mpf1/sgb.cpp
@@ -0,0 +1,73 @@
+// license:BSD-3-Clause
+// copyright-holders:Nigel Barnes
+/***************************************************************************
+
+ Multitech Sound Generation Board
+
+ Piano : ADDR C200 GO
+
+***************************************************************************/
+
+#include "emu.h"
+#include "sgb.h"
+#include "sound/ay8910.h"
+#include "speaker.h"
+
+
+namespace {
+
+//-------------------------------------------------
+// rom_region - device-specific ROM region
+//-------------------------------------------------
+
+ROM_START( mpf_sgb )
+ ROM_REGION(0x1000, "rom", 0)
+ ROM_LOAD("sgb-mpf.bin", 0x0000, 0x1000, CRC(2d51d964) SHA1(13f3c7243d691b66ad5f0dcbbc16488c8905a394))
+ROM_END
+
+
+//-------------------------------------------------
+// mpf_sgb_device - constructor
+//-------------------------------------------------
+
+class mpf_sgb_device : public device_t, public device_mpf1_exp_interface
+{
+public:
+ mpf_sgb_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
+ : device_t(mconfig, MPF_SGB, tag, owner, clock)
+ , device_mpf1_exp_interface(mconfig, *this)
+ , m_rom(*this, "rom")
+ , m_ay(*this, "ay8910")
+ {
+ }
+
+protected:
+ virtual void device_add_mconfig(machine_config &config) override
+ {
+ SPEAKER(config, "mono").front_center();
+ AY8910(config, m_ay, DERIVED_CLOCK(1, 1)).add_route(ALL_OUTPUTS, "mono", 1.0);
+ }
+
+ virtual const tiny_rom_entry *device_rom_region() const override
+ {
+ return ROM_NAME( mpf_sgb );
+ }
+
+ virtual void device_start() override { }
+ virtual void device_reset() override
+ {
+ program_space().install_rom(0xc000, 0xcfff, m_rom->base());
+
+ io_space().install_read_handler(0xc1, 0xc1, emu::rw_delegate(*m_ay, FUNC(ay8910_device::data_r)));
+ io_space().install_write_handler(0xc2, 0xc3, emu::rw_delegate(*m_ay, FUNC(ay8910_device::data_address_w)));
+ }
+
+private:
+ required_memory_region m_rom;
+ required_device<ay8910_device> m_ay;
+};
+
+} // anonymous namespace
+
+
+DEFINE_DEVICE_TYPE_PRIVATE(MPF_SGB, device_mpf1_exp_interface, mpf_sgb_device, "mpf1_sgb", "Multitech SGB-MPF (Sound Generation Board)")