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Diffstat (limited to 'src/devices/bus/a2bus/ssbapple.cpp')
-rw-r--r--src/devices/bus/a2bus/ssbapple.cpp91
1 files changed, 91 insertions, 0 deletions
diff --git a/src/devices/bus/a2bus/ssbapple.cpp b/src/devices/bus/a2bus/ssbapple.cpp
new file mode 100644
index 00000000000..76dffa56ac6
--- /dev/null
+++ b/src/devices/bus/a2bus/ssbapple.cpp
@@ -0,0 +1,91 @@
+// license:BSD-3-Clause
+// copyright-holders:R. Belmont
+/*********************************************************************
+
+ ssbapple.c
+
+ Implementation of the SSB Apple speech card
+ Must be in slot 2 for the provided software to work!
+
+*********************************************************************/
+
+#include "emu.h"
+#include "ssbapple.h"
+#include "sound/tms5220.h"
+#include "speaker.h"
+
+/***************************************************************************
+ PARAMETERS
+***************************************************************************/
+
+//**************************************************************************
+// GLOBAL VARIABLES
+//**************************************************************************
+
+DEFINE_DEVICE_TYPE(A2BUS_SSBAPPLE, a2bus_ssb_device, "a2ssbapl", "Multitech Industrial SSB Apple speech card")
+
+#define TMS_TAG "tms5220"
+
+/***************************************************************************
+ FUNCTION PROTOTYPES
+***************************************************************************/
+
+//-------------------------------------------------
+// device_add_mconfig - add device configuration
+//-------------------------------------------------
+
+MACHINE_CONFIG_MEMBER( a2bus_ssb_device::device_add_mconfig )
+ MCFG_SPEAKER_STANDARD_MONO("ssbapple")
+ MCFG_SOUND_ADD(TMS_TAG, TMS5220, 640000) // guess - this gives 8 kHz output according to the datasheet
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "ssbapple", 1.0)
+MACHINE_CONFIG_END
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+a2bus_ssb_device::a2bus_ssb_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock) :
+ device_t(mconfig, type, tag, owner, clock),
+ device_a2bus_card_interface(mconfig, *this),
+ m_tms(*this, TMS_TAG)
+{
+}
+
+a2bus_ssb_device::a2bus_ssb_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
+ a2bus_ssb_device(mconfig, A2BUS_SSBAPPLE, tag, owner, clock)
+{
+}
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void a2bus_ssb_device::device_start()
+{
+ // set_a2bus_device makes m_slot valid
+ set_a2bus_device();
+
+ if (m_slot != 2)
+ {
+ popmessage("SSB Card should be in slot 2!\n");
+ }
+}
+
+void a2bus_ssb_device::device_reset()
+{
+}
+
+bool a2bus_ssb_device::take_c800()
+{
+ return false;
+}
+
+uint8_t a2bus_ssb_device::read_cnxx(address_space &space, uint8_t offset)
+{
+ return 0x1f | m_tms->status_r(space, 0);
+}
+
+void a2bus_ssb_device::write_cnxx(address_space &space, uint8_t offset, uint8_t data)
+{
+ m_tms->data_w(space, 0, data);
+} \ No newline at end of file