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-rw-r--r--src/devices/bus/comx35/exp.c187
1 files changed, 187 insertions, 0 deletions
diff --git a/src/devices/bus/comx35/exp.c b/src/devices/bus/comx35/exp.c
new file mode 100644
index 00000000000..b0ff7aa77c3
--- /dev/null
+++ b/src/devices/bus/comx35/exp.c
@@ -0,0 +1,187 @@
+// license:BSD-3-Clause
+// copyright-holders:Curt Coder
+/**********************************************************************
+
+ COMX-35 Expansion Slot emulation
+
+**********************************************************************/
+
+#include "exp.h"
+
+
+//**************************************************************************
+// DEVICE DEFINITIONS
+//**************************************************************************
+
+const device_type COMX_EXPANSION_SLOT = &device_creator<comx_expansion_slot_device>;
+
+
+
+//**************************************************************************
+// DEVICE COMX_EXPANSION CARD INTERFACE
+//**************************************************************************
+
+//-------------------------------------------------
+// device_comx_expansion_card_interface - constructor
+//-------------------------------------------------
+
+device_comx_expansion_card_interface::device_comx_expansion_card_interface(const machine_config &mconfig, device_t &device) :
+ device_slot_card_interface(mconfig, device),
+ m_ds(1)
+{
+ m_slot = dynamic_cast<comx_expansion_slot_device *>(device.owner());
+}
+
+
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// comx_expansion_slot_device - constructor
+//-------------------------------------------------
+
+comx_expansion_slot_device::comx_expansion_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
+ device_t(mconfig, COMX_EXPANSION_SLOT, "COMX-35 expansion slot", tag, owner, clock, "comx_expansion_slot", __FILE__),
+ device_slot_interface(mconfig, *this),
+ m_write_irq(*this)
+{
+}
+
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void comx_expansion_slot_device::device_start()
+{
+ m_card = dynamic_cast<device_comx_expansion_card_interface *>(get_card_device());
+
+ // resolve callbacks
+ m_write_irq.resolve_safe();
+}
+
+
+//-------------------------------------------------
+// mrd_r - memory read
+//-------------------------------------------------
+
+UINT8 comx_expansion_slot_device::mrd_r(address_space &space, offs_t offset, int *extrom)
+{
+ UINT8 data = 0;
+
+ if (m_card != NULL)
+ {
+ data = m_card->comx_mrd_r(space, offset, extrom);
+ }
+
+ return data;
+}
+
+
+//-------------------------------------------------
+// mwr_w - memory write
+//-------------------------------------------------
+
+void comx_expansion_slot_device::mwr_w(address_space &space, offs_t offset, UINT8 data)
+{
+ if (m_card != NULL)
+ {
+ m_card->comx_mwr_w(space, offset, data);
+ }
+}
+
+
+//-------------------------------------------------
+// io_r - I/O read
+//-------------------------------------------------
+
+UINT8 comx_expansion_slot_device::io_r(address_space &space, offs_t offset)
+{
+ UINT8 data = 0;
+
+ if (m_card != NULL)
+ {
+ data = m_card->comx_io_r(space, offset);
+ }
+
+ return data;
+}
+
+
+//-------------------------------------------------
+// sout_w - I/O write
+//-------------------------------------------------
+
+void comx_expansion_slot_device::io_w(address_space &space, offs_t offset, UINT8 data)
+{
+ if (m_card != NULL)
+ {
+ m_card->comx_io_w(space, offset, data);
+ }
+}
+
+
+//-------------------------------------------------
+// ds_w - device select write
+//-------------------------------------------------
+
+WRITE_LINE_MEMBER( comx_expansion_slot_device::ds_w )
+{
+ if (m_card != NULL)
+ {
+ m_card->comx_ds_w(state);
+ }
+}
+
+
+//-------------------------------------------------
+// q_w - Q write
+//-------------------------------------------------
+
+WRITE_LINE_MEMBER( comx_expansion_slot_device::q_w )
+{
+ if (m_card != NULL)
+ {
+ m_card->comx_q_w(state);
+ }
+}
+
+READ_LINE_MEMBER( comx_expansion_slot_device::ef4_r )
+{
+ int state = CLEAR_LINE;
+
+ if (m_card != NULL)
+ {
+ state = m_card->comx_ef4_r();
+ }
+
+ return state;
+}
+
+
+//-------------------------------------------------
+// SLOT_INTERFACE( comx_expansion_cards )
+//-------------------------------------------------
+
+// slot devices
+#include "clm.h"
+#include "eprom.h"
+#include "expbox.h"
+#include "fdc.h"
+#include "joycard.h"
+#include "printer.h"
+#include "ram.h"
+#include "thermal.h"
+
+SLOT_INTERFACE_START( comx_expansion_cards )
+ SLOT_INTERFACE("eb", COMX_EB)
+ SLOT_INTERFACE("fd", COMX_FD)
+ SLOT_INTERFACE("clm", COMX_CLM)
+ SLOT_INTERFACE("ram", COMX_RAM)
+ SLOT_INTERFACE("joy", COMX_JOY)
+ SLOT_INTERFACE("prn", COMX_PRN)
+ SLOT_INTERFACE("thm", COMX_THM)
+ SLOT_INTERFACE("epr", COMX_EPR)
+SLOT_INTERFACE_END