summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/bus/spectrum/melodik.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/devices/bus/spectrum/melodik.cpp')
-rw-r--r--src/devices/bus/spectrum/melodik.cpp101
1 files changed, 101 insertions, 0 deletions
diff --git a/src/devices/bus/spectrum/melodik.cpp b/src/devices/bus/spectrum/melodik.cpp
new file mode 100644
index 00000000000..5f7481b636a
--- /dev/null
+++ b/src/devices/bus/spectrum/melodik.cpp
@@ -0,0 +1,101 @@
+// license:BSD-3-Clause
+// copyright-holders:Nigel Barnes
+/**********************************************************************
+
+ Didaktik Melodik
+
+**********************************************************************/
+
+#include "emu.h"
+#include "melodik.h"
+#include "speaker.h"
+
+//**************************************************************************
+// DEVICE DEFINITIONS
+//**************************************************************************
+
+DEFINE_DEVICE_TYPE(SPECTRUM_MELODIK, spectrum_melodik_device, "spectrum_melodik", "Didaktik Melodik")
+
+
+//-------------------------------------------------
+// device_add_mconfig - add device configuration
+//-------------------------------------------------
+
+MACHINE_CONFIG_MEMBER(spectrum_melodik_device::device_add_mconfig)
+ /* sound hardware */
+ MCFG_SPEAKER_STANDARD_MONO("mono")
+ MCFG_SOUND_ADD("ay8912", AY8912, XTAL_3_579545MHz / 2)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
+
+ /* passthru */
+ MCFG_SPECTRUM_PASSTHRU_EXPANSION_SLOT_ADD()
+MACHINE_CONFIG_END
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// spectrum_melodik_device - constructor
+//-------------------------------------------------
+
+spectrum_melodik_device::spectrum_melodik_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
+ : device_t(mconfig, SPECTRUM_MELODIK, tag, owner, clock)
+ , device_spectrum_expansion_interface(mconfig, *this)
+ , m_exp(*this, "exp")
+ , m_psg(*this, "ay8912")
+{
+}
+
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void spectrum_melodik_device::device_start()
+{
+ address_space& spaceio = machine().device("maincpu")->memory().space(AS_IO);
+ m_slot = dynamic_cast<spectrum_expansion_slot_device *>(owner());
+
+ spaceio.install_write_handler(0x8000, 0x8000, 0, 0x3ffd, 0, write8_delegate(FUNC(ay8910_device::address_w), (ay8910_device*)m_psg));
+ spaceio.install_readwrite_handler(0xc000, 0xc000, 0, 0x3ffd, 0, read8_delegate(FUNC(ay8910_device::data_r), (ay8910_device*)m_psg), write8_delegate(FUNC(ay8910_device::data_w), (ay8910_device*)m_psg));
+}
+
+
+//-------------------------------------------------
+// device_reset - device-specific reset
+//-------------------------------------------------
+
+void spectrum_melodik_device::device_reset()
+{
+}
+
+//**************************************************************************
+// IMPLEMENTATION
+//**************************************************************************
+
+READ_LINE_MEMBER(spectrum_melodik_device::romcs)
+{
+ return m_exp->romcs();
+}
+
+READ8_MEMBER(spectrum_melodik_device::mreq_r)
+{
+ return m_exp->mreq_r(space, offset);
+}
+
+WRITE8_MEMBER(spectrum_melodik_device::mreq_w)
+{
+ if (m_exp->romcs())
+ m_exp->mreq_w(space, offset, data);
+}
+
+READ8_MEMBER(spectrum_melodik_device::port_fe_r)
+{
+ uint8_t data = 0xff;
+
+ if (m_exp->romcs())
+ data &= m_exp->port_fe_r(space, offset);
+
+ return data;
+} \ No newline at end of file